October 17,2022

Announcement of Design Number Change for Work Support(model LD / model LDD / model LC / model LCW)

model LD / LDD

model LC / LCWDear Valued Customers,
First of all, thank you very much for your continuous use of our products. Today, please conﬁrm below
about the subject.

Notes
Design number [Model number] has been changed as below for the improvement for environmental
resistance.

1．Model Number
Model Name

Existing Model

After Changing Design No.

Work SupportLD□□□ 2
LDD□□□ 0LC□□□ 2
LCW□□□ 0LD□□□ 3
LDD□□□ 3LC□□□ 3
LCW□□□ 3

2．nterchangeability with Existing Item
There is no change for mounting dimension and basic speciﬁcation. It is interchangeable with existing model.
3．Schedule
Model No.
LD
LDD
LC
LCW

Schedule
2022/12/1 〜 2023/1/15
2023/2/1 〜 2023/3/15

It is going to be changed sequentially as above.
If the items whose size, option and so on are diﬀerent are ordered in one order, old and new items may
be mixed. [Mixing old and new models will not be happening in case of one same model number].
※Regarding supplying to overseas, the update timing is diﬀerent, depending on overseas oﬃce or dealers.

Please contact our salesperson for further inquiries.
Yours Sincerely

KOSMEK LTD.
SSL-LD0003-01-G1B

Product Information Document

(1/1)

New

Lock/Release Confirmation

Air Sensing Work Support

Mo d el

LCW

Air Sensing Work Support(Lock/Release Confirmation)
Mode l

L CW

PAT.P.

Firmly Supports the Workpiece Counter to the Load
Action confirmation for both lock and release ends enables secure automation and interlock control.

Work support eliminates chattering while machining
and prevents deformation by cutting load.

Load

Load
Workpiece

Chattering,Deformation, etc.

Workpiece

SupportSeat＜ Without Work Support ＞

Seat＜ With Work Support ＞

Application Examples

To avoid chattering duringmachining of thin workpiece1

To back up the screw fastenerand nut runnerWorkpiece withDifferent Heights

Features

Model No.
ActionPerformance
Description Specifications
Curve

Action Description

for Sensor Pad Design/
External
Dimensions Plunger Spring Design

Sensor Pad Part
OPEN (OFF)

Exclusive Scraper

Air Sensing
OptionAccessories

Cautions

Sensor Pad Part
CLOSE (ON)Workpiece

Workpiece
Workpiece

Plunger
Venting
BZL Speed Control Valve(Sold Separately)

Powerful Support
The collet powerfully
grips the plunger.

Advance
Confirmation
Air Port
Retract
Confirmation
Air Port

Hydraulic Port
SecureSequence Operation

Venting
VentingReleased State (When pressure is released.)

Locked State (When pressure is supplied.)

The plunger is retracted.

The plunger advances by supplying hydraulic pressure,

Retract confirmation air is increased by internal circuit.

and stops when it touches a workpiece.
↓
The internal part, collet, powerfully holds the plunger.
After holding is completed, the plunger does not retract evenwhen pressed from the top. When it touches a workpiece,
the gap at the sensor pad of the plunger top will be closed
and advance confirmation air will be increased.

Hyd. Pressure

OFF

Advance Confirmation Retract Confirmation
Air Sensor
Air Sensor

OFF

ＯＮ

Hyd. Pressure

ＯＮ

Advance Confirmation Retract Confirmation
Air Sensor
Air Sensor

ＯＮ

OFF

Strong Support and Smooth Action

Certain Sequence Operation

With the same collet mechanism as our model LC, “Wedge Effect”

As it is equipped with a powerful sequencing spring, the action

ensures more powerful gripping force. In addition, a larger gap

sequences as such; Plunger goes up → workpiece touches →between collet and plunger is designed to allow smoother action.

collet locks. This is carried out via one hydraulic circuit system.

Superior Environmental Durability

NEW

Direct Mount Speed Control ValveThe work support can be used in various environments with

Speed control valve with air bleeding function can be directly"Exclusive Scraper" that prevents the accumulation of cutting chips

mounted to the product. (Speed control valve is sold separately.)and other dust, and the built-in "Knockout Function" that releases
adherence after a long-time machine stop.

Circuit Connection Image

Refer to P.11 ~ P.12 for further information of air sensing circuit.

Air Venting

Air Sensor for Advance Confirmation
Air Sensor for Retract Confirmation
Hydraulic Port

0.05 ~ 0.15MPa(Recommended)

Filter
5μm

Air Venting
2

Air Sensing Work Support (Lock/Release Confirmation)

Flange Model：Hydraulic Advancem od e l L C W

Model No. Indication

LC W 048 3 - C L
1

2

3

4

1 Body Size
036： φD=36mm

055： φD=55mm

040： φD=40mm

065： φD=65mm
φD048： φD=48mm※ Indicates the cylinder outer diameter (φD).

2 Design No.
3 ： Revision Number

3 Piping Method
C ： Gasket Option (With G Thread Plug)C※ Speed control valve (BZL-A) is sold separately.
Please use a meter-in speed control valve for LCW.

Gasket Option

In case of using Kosmek model, select BZL□-A.
Refer to P.13 for detail.

With G Thread Plug (able toattach Speed Control Valve)
Order the valve(BZL-A) separately(
4 Plunger Spring Force
L ： Low Spring Force
H ： High Spring Force3(

Features

Model No.
ActionPerformance
Description Specifications
Curve

for Sensor Pad Design/
External
Dimensions Plunger Spring Design

Air Sensing
OptionAccessories

Cautions

Specifications
Model No.

LCW0363-C□
kN

Supporting Force (at 7MPa)

Supporting Force (Calculation Formula) ※1 kN

LCW0403-C□

LCW0483-C□

LCW0553-C□

LCW0653-C□

4

5.5

10

15.5

25

0.70×P-0.91

0.96×P-1.25

1.75×P-2.28

2.72×P-3.54

4.39×P-5.70

Plunger Stroke

mm

8

8

10

12

14

Eﬀective Stroke

mm

7.5

7.5

9.5

11.5

13.5

Cylinder Capacity

cm3

0.8

1.2

2

3.3

4.8

Plunger Spring Force※2 4 L : Low Spring

3.6〜5.6

4.7〜7.8

5.8〜9.7

8.3〜14.6

9.8〜14.6N

4.7〜7.8

6.2〜11.0

7.9〜13.6

10.1〜21.9

15.8〜22.0

4 H : High Spring

Workpiece Contact Force

Refer to the table below.

Max. Operating Pressure

MPa

Min. Operating Pressure

MPa

2.5

Withstanding Pressure

MPa

10.5

Operating Temperature℃

7.0

0 ~ 70Usable Fluid

General Hydraulic Oil Equivalent to ISO-VG-32

Weight

kg

0.7

0.6

1.1

2.6

1.6

Notes : ※ 1. P in the formula for supporting force indicates the supply hydraulic pressure (MPa).
※ 2. The plunger spring force indicates the spring design value. It may vary depending on sliding resistance of the plunger
and characteristic of the spring, etc. Please read it as a reference value of workpiece contact force.
Workpiece contact force varies depending on the air pressure supplied to the advance confirmation port.
Please refer to the following table for workpiece contact force.

Calculation Formula of Workpiece Contact Force ※3

Workpiece Contact Force (N) = Plunger Spring Force (N) ＋ Air Pressure to Advance Confirmation Port (MPa) × U 2 (mm) × π/ 4Model No.

LCW0363-C□

LCW0403-C□

LCW0483-C□

LCW0553-C□

LCW0653-C□

12

15

16

20

22
66.8 〜 71.6mm

Plunger Diameter U
Workpiece Contact Force N

Air Pressure 0.15MPa

20.6 〜 22.6

31.2 〜 34.3

36 〜 39.9

55.4 〜 61.7

Plunger Spring Force

Air Pressure 0.10MPa14.9 〜 16.9

22.4 〜 25.5

25.9 〜 29.8

39.7 〜 46.0

47.8 〜 52.6

4 L : Low Spring Force

Air Pressure 0.05MPa

9.3 〜 11.3

13.5 〜 16.6

15.9 〜 19.8

24 〜 30.3

28.8 〜 33.6

Workpiece Contact Force N

Air Pressure 0.15MPa

21.7 〜 24.8

32.7 〜 37.5

38.1 〜 43.8

57.2 〜 69.0

72.8 〜 79.0

Plunger Spring Force

Air Pressure 0.10MPa

16 〜 19.1

23.9 〜 28.7

28 〜 33.7

41.5 〜 53.3

53.8 〜 60.0

4 H : High Spring Force

Air Pressure 0.05MPa

10.4 〜 13.5

15 〜 19.8

18 〜 23.7

25.8 〜 37.6

34.8 〜 41.0

Note :※3. Please prepare a stopper if necessary when using light and/or thin workpiece. Otherwise it might be pushed up by work support.

Workpiece Contact ForceWorkpiece

φU

Locking State(When touching the workpiece)

4

Air Sensing Work Support (Lock/Release Confirmation)

Flange Model：Hydraulic Advancemodel L C W

Performance Curve
Applicable Model

LC W 048 3 - C HL
1 Body Size

Support Force Graph ※ This graph shows the support force under static load condition.
26
LCW0653

24

Hydraulic Pressure (MPa)22Support Force (kN)

Support Force (kN)
Model No.

LCW0363-C□ LCW0403-C□ LCW0483-C□ LCW0553-C□ LCW0653-C□

7

4.0

5.5

10.0

15.5

25.0

20

6.5

3.6

5.0

9.1

14.1

22.8

18

6

3.3

4.5

8.2

12.8

20.6

5.5

2.9

4.0

7.3

11.4

18.4
16.3

16

LCW0553

14
12
LCW0483

10
8

5

2.6

3.6

6.5

10.1

4.5

2.2

3.1

5.6

8.7

14.1

4

1.9

2.6

4.7

7.3

11.9

3.5

1.5

2.1

3.8

6.0

9.7

3

1.2

1.6

3.0

4.6

7.5

2.5

0.8

1.2

2.1

3.3

5.3

Support Force Formula ※1 kN 0.70×P-0.91 0.96×P-1.25 1.75×P-2.28 2.72×P-3.54 4.39×P-5.70

Note : ※ 1. P : Operating Hydraulic Pressure (MPa)6

LCW0403

4

LCW0363

2
0

0

1

2
3
4
5
Hydraulic Pressure (MPa)

Load / Displacement Graph

67※ This graph shows the displacement of the static load of a single work support at 7MPa hydraulic pressure.
Not including the displacement of the workpiece side due to unevenness at ★ mark and surrounding clamps.

80
L

70

60

3
04
8
W
LC

Load

36

3

30

LC

Workpiece

Displacement

LC

W
04

03

40

W0

Displacement (μm)

50

53

05

CW

L

53

06

CW

Plunger top when locked(without load)★

Plunger top when
static load is applied

20

10

0

0

5

10

15
Load (kN)

5

20

25

30

Features

Model No.
Performance
ActionCurve
Description Specificationsfor Sensor Pad Design/
External
Dimensions Plunger Spring Design

Air Sensing
OptionAccessories

Cautions

MEMO

6

Air Sensing Work Support (Lock/Release Confirmation)
External Dimensions

Flange Model：Hydraulic Advance

Machining Dimensions of Mounting Area

C：Gasket Option (with G Thread Plug)Nx※ This drawing shows the released state of LCW-C□(when hydraulic and air pressure are released).
3.5

m od e l L C W

Lock Hydraulic PortφP

B
H

Remove all burrs

J□K

4-CA Thread ※2

K
C

BC

φ14

W

2-Z

G Thread PlugφL

For Blind Hole
2-Ry Thread※4
CounterboreφQ

12°12 ±0.230°

8Plunger
Stroke25 ±0.2

Effective
Stroke※5
V BB

EY

T
0.5※5

(15°for 1 Body Size：036）

30°

Rz 6.3φFBH8φFC

FE partRz 6.3

30゜

0.4

S ※1

11

G

Rz 100φU

Advance Conf.
Air Port
φ4〜φ6

1.2

X Thread

φBA

Rz 25

Rz 6.3Retract Conf.
Air Port
φ4〜φ6

Rz 6.3

φFBH8

A

-0.1

Vent Port ※3(For Blind Hole)FD or more

2-φRx
CounterboreφQ

0

φFA - 0.1

30°

7.5

K

21

Hydraulic Port G1/8 Thread(Speed Control Valve Port)φD -0.2

F

For Through Hole0

φFA - 0.1

30゜

Rz 25

※3

Vent Hole
M3×0.5 Thread Depth 4

7.5

φFBH8

0.4 or less

φFC

30゜

Rz 6.3

φFBH8

21

30°

Rz 6.3

FE partRetract Conf.
Air Port
φ4〜φ6

Do not cover the 30°taperarea of the air supply ports.

Remove all burrs

Detail of FE Part
Notes：※ 1. Mounting bolts are not provided. Please prepare them according to the mounting height referring to dimension 'S'.
※ 2. CA tapping depth of the mounting bolt should be decided according to the mounting height referring to dimension 'S'.
※ 3. Air vent hole must be open to the atmosphere, and prevent coolant and chips from entering the air vent hole.
(Please refer to "Appropriate Measures for the Air Vent Hole (P.17)".)※4. When removing the product for maintenance, etc., insert a bolt to the two ※4 parts and pull them out straight.
※5. When the work support touches a workpiece within 0.5mm stroke from the plunger retract-end, a larger force than the plunger springforce will be applied to the workpiece. Please use the work support within the effective stroke range.

7

30 or more

Hydraulic Port：O-ring (Included)
DA

Y

30°

8

Nx

25±0.23-O-ring (Included) DB

12 ±0.2

1.2

Rz 6.3

Advance Conf.
Air Port
φ4〜φ6

Model No.
Performance
ActionCurve
Description Specifications

Featuresfor Sensor Pad Design/
External
Dimensions Plunger Spring Design

Air Sensing
OptionAccessories

Cautions

Model No. Indication(Format Example：LCW0553-CL)

LC W 048 3 - C L
H2

1

1 Body Size

2 Design No.
3 Piping Method

4 Plunger Spring Force

43

External Dimensions and Machining Dimensions for Mounting
Model No.

LCW0363-C□

LCW0403-C□

LCW0483-C□

LCW0553-C□（mm）
LCW0653-C□

Plunger Stroke

8

8

10

12

14

Eﬀective Stroke

7.5

7.5

9.5

11.5

13.5
120.5

A

76

79

94

102.5

B

49.5

54

61

69

81

C

40

45

51

60

70

D

36

40

48

55

65

F

35.5

39

54

56.5

69.5

G

23.6

23.1

23.1

23.1

27.1

H

29.5

31.5

35.5

39

46

J

20

22.5

25.5

30

35

K

31.4

34

40

47

55

L

61

65

73

80

94

Nx

24

26

30

33.5

39.5

P

3

3

3

3

5

Q

7.5

9

9

11

11

Rx

4.5

5.5

5.5

6.8

6.8

Ry (Nominal×Pitch×Depth)

M5×0.8×5

M6×1×6

M6×1×6

M8×1.25×8

M8×1.25×8

S

14

13

13

11

14

T

16.9

16.9

16.9

22.9

23.9

U

12

15

16

20

22

V

6

6

6

8

9

W

10

13

13

17

19

X (Nominal×Pitch×Depth)

M8×1.25×12

M10×1.5×11

M10×1.5×11

M12×1.75×13

M12×1.75×13

Y

7.5

8.5

8.5

10

10

Z (Chamfer)

C2

C3

C3

R40

R47

BA

9.5

10.5

10.5

13.5

13.5

BB

8

8

8

12

12

BC

10

11

11

14

14

CA (Nominal×Pitch)

M4×0.7

M5×0.8

M5×0.8

M6×1

M6×1

EY

SR30

SR50

SR50

SR80

SR80

DA

OR NBR-90 P5-N

OR NBR-90 P5-N

OR NBR-90 P5-N

OR NBR-90 P5-N

OR NBR-90 P7-N

DB

AS568-036(70)O-ring

AS568-026(70)AS568-028(70)AS568-031(70)AS568-033(70)

FA

37

40.8

49

56

66

FB

36 + 0.039
040 + 0.039
048 + 0.039
055 + 0.046
065 + 0.046
0

FC

36.6

40.6

48.6

55.6

65.6

FD

36

39.5

54.5

57

70

8

Air Sensing Work Support (Lock/Release Confirmation)model L C W

Flange Model：Hydraulic AdvanceSensor Pad Design Dimension※ When changing to another sensor pad other than the attached one, please design it according to the sensor pad design dimensions.
※ When replacing the sensor pad, please be careful no to lose the connecting pin.

(φBE)
(Width across flat BC)
φBA

Sensor Pad
Contact Bolt

BD

O-ringPin(X Thread)(φU)

Structure of Sensor Pad Part
This is the image when theattached sensor pad is mounted.

Max. Length※1

EB

ED±0.1Rz 6.3

45ﾟ

EG

φBA

φEA

φEC

Rz 6.3

+0.1

0.2

φEE 0
EF±0.05(mm)
Corresponding Model No.

LCW0363-C□

LCW0403-C□

LCW0483-C□

LCW0553-C□

LCW0653-C□

BA

9.5

10.5

10.5

13.5

13.5

EA

3g7 -- 0.002
0.012

4g7 -- 0.004
0.016

4g7 -- 0.004
0.016

5g7 -- 0.004
0.016

5g7 -- 0.004
0.016

EB

7.5

7.5

7.5

10.5

10.5

EC

7.5

8.5

8.5

10

10

ED

0.8

0.8

0.8

0.8

0.8

EE

1.2

1.2

1.2

2.3

2.3

EF

5.3

5.3

5.3

7.5

7.5

EG

2.1

3.2

3.2

3.9

3.9

Max. Length ※1

max.8

max.8

max.8

max.12

max.12

10

11

11

14

14

BC (Width across Flat)

Dimensions
other thanSensor Pad part

BD

4

4

4

6

6

BE

11.5

12.5

12.5

16.5

16.5

U

12

15

16

20

22

X (Nominal×Pitch×Depth)

M8×1.25×12

M10×1.5×11

M10×1.5×11

M12×1.75×13

M12×1.75×13

Pin (Diam.×Length)

φ1×5.8φ1×7.8φ1×7.8φ2×9.8φ2×9.8O-ring

S6 (Made by NOK)

S8 (Made by NOK) S8 (Made by NOK) S8 (Made by NOK) S10 (Made by NOK)

Note : ※1. Sensor response may decrease if the sensor pad is longer than maximum length.

9Features

Model No.
Performance
ActionCurve
Description Specificationsfor Sensor Pad Design/
External
Dimensions Plunger Spring Design

Air Sensing
OptionAccessories

Cautions

Plunger Spring Design Dimension※ Reference for designing a plunger spring by customer other than the attached plunger spring.
※ This drawing shows the released state.

Plunger Spring
φFB

Contact Bolt

φFA

Plunger Piston

PlungerFE

Eﬀective
StrokePlunger
Stroke

FG ※2

FF ※2

（mm）
Corresponding Model No.

Note :

LCW0363-C□

LCW0403-C□

LCW0483-C□

LCW0553-C□

LCW0653-C□

FA

5

6

6

7.5

7.5

FB

6.8

8.5

8.5

10.3

10.3

FE

1

1

1

1

1

FF ※2

15.2

17.6

19.6

22.6

34.6

FG ※2

7.2

9.6

9.6

10.6

20.6

Plunger Stroke

8

8

10

12

14

Eﬀective Stroke

7.5

7.5

9.5

11.5

13.5

※2. The spring set length should be below dimension FF, and the spring contact length should be below dimension FG.

10Air Sensing Work Support (Lock/Release Confirmation)m od e l L C W

Air Sensing Chart

Action Description (Air Sensing Chart Explanation)
Action conﬁrmation can be conducted by detecting diﬀerential pressure with the air sensor.
・Workpieces even with rough, casting or forged surface can be accurately detected since the structure does not detect the workpiece surface directly.
・Detects with higher accuracy compared to a switch detection with a dog, etc.
・Designed to prevent coolant from entering into the sensing area.

Air Sensor● Air sensor is required in order to conduct the action confirmation.
Sensing can be done by the air sensor with small air flow.
● Recommended Operating Air Pressure：0.05〜0.15MPa● Recommended Air Sensor
Maker

SMC

CKD

Name

Air Catch Sensor

Gap Switch

ISA3-G

GPS3-E

Model No.

● Number of Work Supports Connected per Air Sensor：1 ~ 4 pcs.
● Please refer to maker's catalog etc. for the detail of the air sensor.
● Continuously supply air pressure when in use.
● Refer to the drawing below for the air circuit construction.

Meter-inHydraulic Pressure

2.5〜7MPa

Advance Conf.
Retract Conf.
Air Sensor

0.05〜0.15MPa(Recommended)

Filter
5μm

Air

Notes
1. This model is designed for confirming actions of the plunger.

4. Air vent hole must be open to the atmosphere, and prevent

When using for a workpiece contact confirmation, anothercoolant and chips from entering the air vent hole.

counter clamping (force) is required.

The air sensor can malfunction if the air vent hole is blocked.

2. If the plunger ascends too fast, it may bounce back and locks itself
resulting in a gap with the workpiece, and possible damage tothe internal parts due to the impact. Set the plunger action time
at 0.5-1.0 sec. to adjust the air supply with the flow control valve
with check valve (meter-in), and make sure that there is no gap
with the workpiece for operation.

3. The sensor air port needs to have air supply at all the times.

The air vent hole isopen to the atmosphere.

Coolant and chips enterfrom the air vent hole.

【Prevention of Foreign Substance to the Air Vent Port 】

If it is used when the air supply is shut off, the coolant or cutting

Coolant and chips can be prevented by setting a checkchips may contaminate the sensing area, leading tovalve with low cracking pressure. (Recommended Checkmalfunctioning of the work support and breakage of the air sensor.

Valve: SMC-made AKH series, cracking pressure: 0.005MPa)

Check Valve

11

Features

Model No.
Performance
ActionCurve
Description Specificationsfor Sensor Pad Design/
External
Dimensions Plunger Spring Design

Air Sensing
OptionAccessories

Cautions

Air Sensing Chart

Notes :

Plunger Action

Retracted

Advancing

Advanced

Retracting

Retracted

Collet Action

Released

Released

LockedReleased

Released(Supply Air Pressure)

Air Sensor
ON Set Pressure

Differential
Pressure
for Detection

Air Pressure (MPa)0.1
Advance Conf.
Air Pressure0
Advance Conf.

OFF

OFF → ONON

ON → OFFOFF(Supply Air Pressure)

Retract Conf.
Air Pressure

Air Sensor
ON Set Pressure

Differential
Pressure
for Detection

Air Pressure (MPa)0.10Retract Conf.

ON

ON → OFFOFF

OFF → ONON

0.1

(Supply Air Pressure)

Advance Conf.
Air Pressure0
Advance Conf.

OFF

OFF → ON

Air Sensor
ON Set Pressure

Differential
Pressure
for Detection

Air Pressure (MPa)Air Sensor for Advance Confirmation

OFF

ON

ON → OFF

OFF

0.1

0
Retract Conf.

(Supply Air Pressure)

Retract Conf.
Air Pressure

Differential
Pressure
for Detection

Supplying Pressureof Air Sensor = 0.1MPa

OFF

Air Pressure (MPa)Connect Four Work Supports
with One Air Sensor

ON

Air Sensor for Retract Confirmation

Supplying Pressureof Air Sensor = 0.1MPa

ON

Air Sensor for Advance Confirmation

Connect One Work Support
with One Air Sensor

OFF

Air Sensor for Retract Confirmation

Operation Cycle

Hyd. Pressure

ON

OFF

ON → OFFAir Sensor
ON Set Pressure

OFF → ONON

1. Depending on the usage condition, the detection differential pressure may be decreased by repeated operation.
Please contact us for overhaul when the detection differential pressure is decreased.
2. In order to carry out stabilized detection, the number of work supports connected per air sensor should be four or less.

12

Control Valvemodel B Z L

Speed Control Valve ( For Low Pressure)

Model No. Indication (Speed Control Valve for Low Pressure)

BZL 0 10 1 - A
12

3

1 G Thread Size
10 ： Thread Part G1/8A Thread
Thread Part

2 Design No.
1 ： Revision Number

3 Control Method

A

A ： Meter-in

Circuit Symbol：Meter-in

P1 portHydraulic Pressure
Supply SideP2 PortClamp SideSpecifications
Model No.

BZL0101-A

Max. Operating Pressure

MPa

7

Withstanding Pressure

MPa

10.5

Control Method

Meter-in

G Thread Size

G1/8A

Cracking Pressure

MPaMax. Passage Area

mm2

Usable Fluid

0.04
2.6
General Hydraulic Oil Equivalent to ISO-VG-32

Operating Temperature℃

0 〜 70Tightening Torque for Main Body N･m

10

Weight12

Notes :

g

1. It must be mounted with recommended torque. Because of the structure of the metal seal,
if mounting torque is insufficient, the flow control valve may not be able to adjust the flow rate.
2. Do not attach a used BZL to other cylinders.
Flow control may not be done because the bottom depth difference of G thread makes metal sealing insufficient.

Applicable Products
Model No.

LCW (Single Action)Work Support
LCW0363-C□
LCW0403-C□

BZL0101-A

LCW0483-C□
LCW0553-C□
LCW0653-C□

13

Model No.
Performance
ActionCurve
Description Specifications

Featuresfor Sensor Pad Design/
External
Dimensions Plunger Spring Design

Air Sensing
OptionAccessories

Cautions

Flow Rate Graph < Hydraulic Fluids ISO-VG32 (25〜35℃)>
BZL0101-A：Meter-in
Controlled Flow Direction
10
Flow Rate (L/min)

8
Pressure Loss 5MPa

6

Pressure Loss 3MPa

4Pressure Loss 1MPa

2
0

0

1

2

3

4

←Closed Number of Turns of Adjusting Screw Opened→

Free Flowing Direction

Flow Rate (L/min)

10
8Fully Opened

64
Fully Closed

2
0

0

1

2

3

4

5

6

Pressure Loss (MPa)14Control Valvemodel B Z L

Speed Control Valve ( For Low Pressure)

External Dimensions(Work Support)

Adjusting Screw
M6×0.75 Screw

φ15.5

Exclusive Packing G1/8A Thread(Included)

P2 PortHex. Socket 3

CLOSE

Clamp Side

OPEN

3.5

Hexagon 10

max. 38.5
12Hexagon 14

max.15(11.6)P1 PortHydraulic Pressure
Supply Side

Machining Dimensions of Mounting AreaZ

min.8.5
Rz 25(Prepared Holeφ8.7
Flat Bottom)

P2 PortClamp Side

0.2
45°

φ8.7

min.φ16

Attention

0.4

φ2.5 ~φ5

G1/8 Thread

max.φ10⊥ 0.1 Z

011.5 - 0.10

Rz 6.3

P1 Portφ2 ~ φ3

Hydraulic Pressure
Supply Side

9
Notes :
1. Since theRz 6.3 area is sealing part, be careful not to damage it.

2. Since theRz 12.5 area is the metal sealing part of BZL, be careful not to damage it. (Especially when deburring)

3. No cutting chips or burr should be at the tolerance part of machining hole.
4. As shown in the drawing, P1 port is used as the hydraulic supply side and P2 port as the clamp side.

Notes
1. Please read "Notes on Hydraulic Cylinder Speed Control Unit" for proper hydraulic circuit design.
Improper circuit design may lead to malfunctions and damages. (Refer to P.20)
2. It is dangerous to release the air under high pressure. It must be done under lower pressure.
(For reference : the minimum operating range of the product within the circuit.)

15

Features

Model No.
Performance
ActionCurve
Description Specificationsfor Sensor Pad Design/
External
Dimensions Plunger Spring Design

Air Sensing
OptionAccessories

Cautions

MEMO

16

Air Sensing Work Support (Lock/Release Confirmation)model L C W

Cautions

Cautions● Notes for Design1）Check Speciﬁcations

8）Appropriate Measures for Air Vent Hole

● Please use each product according to the speciﬁcations.

● The work support, although only slightly, breathes like a single-● When using a work support opposite to the clamp, set the
supporting force at more than 1.5 times the clamping force.

Clamping Forceacting cylinder. Consider the environment and avoid cutting ﬂuid,
coolant or any contaminants.
● If using it without air vent hole, it will not function properly.
【Example】① Prepare the air vent hole within the ﬁxture with manifold piping.
Make sure it breathes without the inﬂuence of cutting chips,

Supporting Force≧
Clamping Force×1.5

coolant or any contaminants.

2）Notes for Circuit Design● Please read "Notes on Hydraulic Cylinder Speed Control Circuit"

Air Vent Holeon P.20 to assist with proper hydraulic circuit designing.
Improper circuit design may lead to malfunctions and damages.
LCW3）Install temporary stopper for workpiece if necessary.
● When multiple work supports are used for a light workpiece,
the plunger spring force may be higher than the weight of
the workpiece causing it to lift the workpiece.
4）Contact bolt or attachment is required for the plunger.
● Always use contact bolt or attachment with the plunger.
Plunger does not rise since plunger spring is free to move.
● You must set an O-ring to the attachment.

(Ex.)
Prevent cutting chips and coolant with
Low-Cracking-Pressure Check Valve(Recommended Check Valve: SMC-madeAKH series, cracking pressure: 0.005MPa)② Prepare the external piping. If it is impossible to prepare
manifold piping like the case ①, move the vent hole by usingﬁtting and steel piping etc. to the place without inﬂuence of
coolant or any contaminants.

Otherwise, cutting ﬂuid or other foreign material will get in easily,
causing malfunction.
Attachment

Piping(Prepared by Customer)5）When using on a welding ﬁxture, plunger surface should be protected.
● If spatter gets onto the sliding surface it may lead to a sliding failure
and an insuﬃcient support function.
6）For Using on a Lathe, High-Speed Tilting Table, and etc.
● When using in a cycle where the centrifugal force is acting,
the work support should be in a locked state. Please contact
us for further information.
7）Adjust plunger operation time with ﬂow rate.
● A rough guideline for the full stroke is between 0.5 and 1 sec.
● As with single-acting cylinders, use a speed control valve with a checkvalve (meter-in) in consideration of the decreasing speed at release.
● If the action speed is too fast, the plunger may bounce back and locks
itself resulting in a gap with the workpiece.
● Use a speed control valve with check valve that has 0.1 MPaor less of cracking pressure. If the cracking pressure is too high,the plunger will not move at the time of release.

17Model No.
Performance
ActionCurve
Description Specifications

Featuresfor Sensor Pad Design/
External
Dimensions Plunger Spring Design

Air Sensing
OptionAccessories

Cautions

9）Make sure that oﬀset load and component of force do not aﬀect
the product.
● If using the product as illustrated below, the displacement against
load will be increased. Also large load will damage the internal parts.

Oﬀset Load

InclinedOﬀset AmountLess than U/2
Load
φU

Load

Workpiece

Componentof Force

Workpiece

Componentof Force

Load

Workpiece

Load

Inclined

Inclined10) For Replacing Sensor Pads
● Please design a sensor pad according to Sensor Pad Design
Dimensions on P.9. When replacing the sensor pad, please be
careful not to lose the connecting pin.
Sensor response may decrease if the sensor pad is longer thanmaximum length shown in the sensor pad design dimensions.

18

Air Sensing Work Support (Lock/Release Confirmation)model L C W

Cautions

Cautions● Installation Notes
1）Check the Usable Fluid

6）Replacement of Attachment● Please use the appropriate ﬂuid by referring to the Hydraulic Fluid List.

● Do not lose the plunger spring when the attachment (contact bolt)2）Procedure before Piping● When mounting the attachment, stop the plunger with a spanneris removed.
● The pipeline, piping connector and ﬁxture circuits should be cleaned

at edge and tighten it with torque as shown in the table below.

by thorough ﬂushing.

Attachment (Contact Bolt)● The dust and cutting chips in the circuit may lead to ﬂuid leakage
and malfunction.
● There is no ﬁlter provided with Kosmekʼs product except for a partof valves which prevent foreign materials and contaminants fromgetting into the circuit.
3）Applying Sealing Tape
● Wrap with tape 1 to 2 times following the screw direction.
● Pieces of the sealing tape can lead to oil leakage and malfunction.
● In order to prevent a foreign substance from going into the productduring the piping work, it should be carefully cleaned before working.
4）Installation of the Product● When mounting LCW, use hexagon socket bolts as multiple bolt
holes for mounting (with tensile strength of 12.9) and tighten
them with the torque shown in the table below.

Model No.

Head Thread Size

Tightening Torque (N･m)

LCW0363-C□

M8×1.25

10

LCW0403-C□

M10×1.5

16

LCW0483-C□

M10×1.5

16

LCW0553-C□

M12×1.75

40

LCW0653-C□

M12×1.75

407）Air Bleeding of the Hydraulic Circuit● If the hydraulic circuit has excessive air, the action time may
become very long. If air enters the circuit after connecting theModel No.

Thread Size

Tightening Torque (N･m)

LCW0363-C□

M4×0.7

3.2

LCW0403-C□

M5×0.8

6.3

LCW0483-C□

M5×0.8

6.3

LCW0553-C□

M6×1

10

LCW0653-C□

M6×1

10

● Apply an adequate amount of grease to the O-ring.
● If it is mounted under dry state, the O-ring may have twisting or be defective.
● If it is tightened with higher torque, it may lead to malfunction.

hydraulic port or under the condition of no air in the oil tank,please perform the following steps.
① Reduce hydraulic pressure to less than 2MPa.
② Loosen the cap nut of pipe ﬁtting closest to the work support
by one full turn.
③ Wiggle the pipeline to loosen the outlet of pipe ﬁtting.
Hydraulic ﬂuid mixed with air comes out.
④ Tighten the cap nut after bleeding.
⑤ It is more eﬀective to bleed air at the highest point inside5）Removal of the Productthe circuit or at the end of the circuit.

● When removing the product for maintenance, etc., insert a bolt tothe two mounting bolt holes and pull them out straight.
If the plunger part is pulled out, the internal parts will be damaged.

8）Checking Looseness and Retightening● At the beginning of the product installation, the bolt andnut may be tightened lightly. Check the looseness andre-tighten as required.

● Hydraulic Fluid List
ISO Viscosity Grade ISO-VG-32

Maker
Showa Shell Sekiyu
Idemitsu Kosan

Anti-Wear Hydraulic Oil Multi-Purpose Hydraulic Oil
Tellus S2 M 32

Morlina S2 B 32

Daphne Hydraulic Fluid 32 Daphne Super Multi Oil 32

JX Nippon Oil & Energy

Super Hyrando 32

Super Mulpus DX 32

Cosmo Oil

Cosmo Hydro AW32

Cosmo New Mighty Super 32

ExxonMobil

Mobil DTE 24

Mobil DTE 24 Light

Matsumura Oil

Hydol AW-32

Castrol

Hyspin AWS 32

Note

As it may be difficult to purchase the products as shown in the table fromoverseas, please contact the respective manufacturer.

19

Features

Model No.
Performance
ActionCurve
Description Specificationsfor Sensor Pad Design/
External
Dimensions Plunger Spring Design

Air Sensing
OptionAccessories

Cautions● Notes on Hydraulic Cylinder Speed Control Unit！

Please pay attention to the cautions below. Design the hydraulic circuit for controlling the action speed of hydraulic cylinder.
Improper circuit design may lead to malfunctions and damages. Please review the circuit design in advance.

● Speed Control Circuit for Single Acting Cylinder
For spring return single acting cylinders, restricting ﬂow during release

In the case of meter-out circuit, the hydraulic circuit should
be designed with the following points.

can extremely slow down or disturb release action. The preferred① Single acting components should not be used in the same

method is to control the ﬂow during the lock action only. It is also

ﬂow control circuit as the double acting components.

preferred to provide a ﬂow control valve at each actuator which has

The release action of the single acting cylinders may become

limited action speed (swing clamp, hydraulic compact cylinder, etc.)

erratic or very slow.

If the cylinder may be damaged by the load from the releasing action
direction, provide the ﬂow control valve to the releasing side as well.
(Provide the ﬂow control valve to the releasing side if the lever weight
Refer to the following circuit when both the single acting

is applied during release action.)
Flow Control at the Release Side

cylinder and double acting cylinder are used together.
○ Separate the control circuit.

Ｗ● Speed Control Circuit for Double Acting Cylinder
Speed control circuit for double action cylinder should have meter-out
circuits for both the lock and release sides (except model LKE/TLA/TMA).
Meter-in circuits can be adversely aﬀected by any air in the system.

○ Reduce the inﬂuence of double acting cylinder control unit.

However, in the case of controlling LKE, TMA, TLA, both lock side andHowever, due to the back pressure in tank line, single acting

release side should be meter-in circuit.

cylinder is activated after double acting cylinder works.

For TMA and TLA, if meter-out circuit is used, abnormal high pressure iscreated, which causes oil leakage and damage.
【Meter-out Circuit】(Except LKE/TMA/TLA)② In the case of meter-out circuit, the inner circuit pressure may
increase during the cylinder action because of the ﬂuid supply.
The increase of the inner circuit pressure can be prevented by
reducing the supplied ﬂuid beforehand via the ﬂow control valve.
Especially when using sequence valve or pressure switches for【Meter-in Circuit】(LKE/TMA/TLA must be controlled with meter-in.)clamping detection. If the back pressure is more than the set
pressure then the system will not work as it is designed to.

Sequence Valve

Flow Control Valve(Either position is OK)

20

Air Sensing Work Support (Lock/Release Confirmation)

Cautionsm od e l L C W

Cautions● Notes on Handling● Maintenance and Inspection1）It should be handled by qualiﬁed personnel.

1）Removal of the Product and Shut-oﬀ of Pressure Source● The hydraulic machine and air compressor should be handled● Before the product is removed, make sure that safety measuresand maintained by qualiﬁed personnel.

and preventive devices are in place. Shut oﬀ the pressure andpower source, and make sure no pressure exists in the air and2）Do not handle or remove the product unless the safety protocols
are ensured.
① The machine and equipment can only be inspected or preparedhydraulic circuits.
● Make sure there is no abnormality in the bolts and respective
parts before restarting.

when it is conﬁrmed that the preventive devices are in place.
② Before the product is removed, make sure that the above-2）Regularly clean the area around the plunger.

mentioned safety measures are in place. Shut oﬀ the pressure● If it is used when the surface is contaminated with dirt, it may

and power source, and make sure no pressure exists in the air

lead to packing seal damage, malfunctioning, ﬂuid leakage

and hydraulic circuits.

and air leaks.

③ After stopping the product, do not remove until the temperaturecools down.
④ Make sure there is no abnormality in the bolts and respective parts
before restarting the machine or equipment.
3）Do not touch work supports while they are working.
Otherwise, your hands may be injured due to clinching.

3）If disconnecting by couplers, air bleeding should be carried out
on a regular basis to avoid air mixed in the circuit.
4）Regularly tighten piping, mounting bolts and etc., to ensure
proper use.
5）Make sure the hydraulic ﬂuid has not deteriorated.
4）Do not disassemble or modify.

6）Make sure there is smooth action and no abnormal noise.

● If the equipment is taken apart or modiﬁed, the warranty will be● Especially when it is restarted after left unused for a long period,

voided even within the warranty period.

make sure it can be operated correctly.
7）The products should be stored in the cool and dark place without
direct sunshine or moisture.
8）Please contact us for overhaul and repair.

21

Features

Model No.
Performance
ActionCurve
Description Specificationsfor Sensor Pad Design/
External
Dimensions Plunger Spring Design

Air Sensing
OptionAccessories

Cautions● Warranty1）Warranty Period● The product warranty period is 18 months from shipment fromour factory or 12 months from initial use, whichever is earlier.
2）Warranty Scope● If the product is damaged or malfunctions during the warranty
period due to faulty design, materials or workmanship, we will
replace or repair the defective part at our expense.
Defects or failures caused by the following are not covered.
① If the stipulated maintenance and inspection are not carried out.
② If the product is used while it is not suitable for use based on
the operatorʼs judgment, resulting in defect.
③ If it is used or handled in inappropriate way by the operator.
（Including damage caused by the misconduct of the third party.）④ If the defect is caused by reasons other than our responsibility.
⑤ If repair or modiﬁcations are carried out by anyone other than Kosmek,
or without our approval and conﬁrmation, it will void warranty.
⑥ Other caused by natural disasters or calamities not attributable toour company.
⑦ Parts or replacement expenses due to parts consumption anddeterioration.
(Such as rubber, plastic, seal material and some electric components.)
Damages excluding from direct result of a product defect shall be
excluded from the warranty.

22

KOSMEK LTD.
HEAD OFFICE

United States of America
SUBSIDIARYKOSMEK (USA) LTD.
650 Springer Drive, Lombard, IL 60148 USA
TEL. +1-630-620-7650
FAX. +1-630-620-9015

MEXICOREPRESENTATIVE OFFICEKOSMEK USA Mexico Office
Av. Santa Fe 103, Int. 59, col. Santa Fe Juriquilla, Queretaro,
QRO, 76230, Mexico
TEL. +52-1-55-3044-9983

EUROPESUBSIDIARYKOSMEK EUROPE GmbH
Schleppeplatz 2 9020 Klagenfurt am Wörthersee Austria
TEL. +43-463-287587
FAX. +43-463-287587-20

CHINA
SUBSIDIARYKOSMEK (CHINA) LTD.
Room601, RIVERSIDE PYRAMID No.55, Lane21, Pusan Rd, Pudong
Shanghai 200125, China
TEL. +86-21-54253000

INDIA
BRANCH OFFICEKOSMEK LTD. - INDIA
4A/Old No:649, Ground Floor, 4th D cross, MM Layout, Kavalbyrasandra,
RT Nagar, Bangalore -560032 India TEL.+91-9880561695

THAILANDREPRESENTATIVE OFFICEKOSMEK Thailand Representation Office
67 Soi 58, RAMA 9 Rd., Phatthanakan, Suanluang, Bangkok 10250, Thailand
TEL. +66-2-300-5132
FAX. +66-2-300-5133

CAT.NO. SBR-LC W001-02-G1B
Printed in Japan▶ http: //w w w .k o s me k .co m/

1-5, 2-chome, Murotani, Nishi-ku, Kobe-city, Hyogo, Japan 651-2241
TEL.+81-78-991-5162
FAX.+81-78-991-8787■ For Further Information on Unlisted Specifications and Sizes, Please call us.
■ Specifications in this Leaflet are Subject to Change without Notice.

2019/12023/2First 2Ry
2nd 0Ry