Pne u m ati c Li ft C ylin derMode l

WLA

Compact and Simple Linear Cylinder

Suitable for Lifting Up and Downof Machining Workpieces
Compact Pneumatic Linear Cylinder

For Lifting

1For Shifting

Features

ActionDescription

Action Description

Model No.
Indication

Specifications

Performance
Curve

ExternalDimensions

Accessory

Cautions※ This is a simpliﬁed drawing. Actual components are diﬀerent.

Speed Control Valve PortC ompact

PullPush

Supplying air pressure to the pull side port.

Supplying air pressure to the push side port.

FeaturesExcellent Coolant ResistanceOur exclusive dust seal is designed to protect against high pressure coolant.
It also has high durability against chlorine-based coolant by using a sealing

Piston Rod
Dust Sealmaterial with excellent chemical resistance.

Direct Mount Speed Control Valve

SpeedControl Valve

Speed control valve can be directly mounted to the product in case ofPiping Method A : Gasket Option. (Speed control valve is sold separately.)2

Pneumatic Lift Cylindermodel W L A

Model No. Indication

WLA 040 0 - 2 A A - 0 1 0123451 Cylinder Inner Diameter
040： Cylinder Inner Diameter =φ40mm
050： Cylinder Inner Diameter =φ50mm

2 Design No.
0 ： Revision Number

3 Piping MethodA

A ： Gasket Option (with Ports for Speed Controller※)GS

G ： Gasket Option (with R Thread Plug)S ： Piping Option (Rc Thread)
Piping Option

Gasket Option※ Speed control valve (BZW) is sold separately.

with R thread plug (able toattach speed control valve)
Order the valve separately.
Recommended：BZW-B(Rc Threadwith R thread plug

No Gasket Port(4 Shape of Piston TipA： Female Threaded

B： Female Threaded (With Anti-Rotation Pinhole)A

B

5 Stroke
10 ： Full Stroke 10mm

Push End

15 ： Full Stroke 15mm

Full Stroke

20 ： Full Stroke 20mm

3Pull End

ActionDescription

Features

Model No.
Indication

Specifications

Performance
Curve

External
Dimensions

Accessory

Cautions

Specifications
Model No.

WLA0400-2□□-010 WLA0400-2□□-015 WLA0400-2□□-020 WLA0500-2□□-010 WLA0500-2□□-015 WLA0500-2□□-020

Full Strokemm

CylinderPush Side

cm2

Area

1015

Pull SidePush Side
Cylinder Force ※1kN
(Calculation Formula)
Pull SideCylinder

cm3Capacity

20101512.57

2019.64

10.56

16.49

F = P × 1.257

F = P × 1.964

F = P × 1.056

F = P × 1.649

Push Side

12.6

18.8

25.1

19.6

29.5

39.3

Pull Side

10.6

15.8

21.1

16.5

24.7

33.0

Cylinder Inner Diameter mm

φ40

Rod Diameter

φ16mm

φ50
φ20
1.0

Max. Operating Pressure MPa
Min. Operating Pressure※2 MPa

0.1

Withstanding Pressure MPa

1.5

Operating Temperature

0 ~ 70℃

Dry Air

Usable Fluid
Weightkg

0.5

0.8

Notes :
※ 1. F：Cylinder Force (kN), P：Supply Air Presure (MPa)※ 2. Minimum pressure to operate the clamp without load.

Performance Curve
Cylinder Force (Push Side) (kN)
Model No.

0.1MPa 0.2MPa 0.3MPa 0.4MPa 0.5MPa 0.6MPa 0.7MPa 0.8MPa 0.9MPa1MPa

WLA0400-□□-□

0.13

0.25

0.38

0.50

0.63

0.75

0.88

1.01

1.13

1.26

WLA0500-□□-□

0.20

0.39

0.59

0.79

0.98

1.18

1.37

1.57

1.77

1.96

Cylinder Force (Pull Side) (kN)
Model No.

0.1MPa 0.2MPa 0.3MPa 0.4MPa 0.5MPa 0.6MPa 0.7MPa 0.8MPa 0.9MPa1MPa

WLA0400-□□-□

0.11

0.21

0.32

0.42

0.53

0.63

0.74

0.84

0.95

1.06

WLA0500-□□-□0.16

0.33

0.49

0.66

0.82

0.99

1.15

1.32

1.48

1.65

2.0

Push

1.6

1.6

1.4

1.4

WLA0400

1.2
1.00.8
0.6

0.6

0.2

0.2

0.3 0.4 0.5 0.6 0.7
Supply Air Pressure (MPa)

0.8

0.9

1

WLA0400

0.8

0.2

0.1

WLA0500

1.0

0.4

0

Cylinder Force(Pull Side)

1.2

0.40

Pull

1.8

Cylinder Force(Push Side)

Cylinder Force (Pull Side) (kN)

Cylinder Force (Push Side) (kN)

1.8

2.0

WLA0500

000.1

0.2

0.3 0.4 0.5 0.6 0.7
Supply Air Pressure (MPa)0.80.91Notes :1. Tables and graphs show the relationship between the cylinder output and the supply air pressure.
2. Cylinder Force F (kN) is the theoretical value. Actual output may decrease because of friction and pressure loss.

4

Pneumatic Lift Cylindermodel W L A

External Dimensions (WLA0400)

Machining Dimensions of Mounting Area (WLA0400)

A：Gasket Option (With Ports for Speed Controller：R-Thread Plug Included)

φ5 or less※5(Option -A/-G)※2(max.17)

13 13※This drawing shows WLA0400-2AA.

Pull Side Port：Rc1/8 Thread66

R1/8 Thread Plug (Included)(Option -A only : Speed Control
Valve Port)

38

28

Push Side Port

2-R5Widthφ15.5

M6×1 Thread
Depth 12
12

□4556

31

Pull Side PortA ：Female Threaded88

φ5 or less※5(Option -A/-G)
4-M5×0.8 Thread※3□45

Remove all burrs※5

φ54+0.3
0

φ

Rz 6.3
Push Side Port：Rc1/8 Thread ※2

4 -φ5.5

R1/8 Thread Plug (Included)(Option -A only : Speed Control
Valve Port)

Full StrokeC0.6※5Counterbore φ9.5

※4

φ1497.5

Notes :
※ 3. M5 tapping depth of the mounting bolt should be decided

12°according to the mounting height referring to dimension '※1'.
※ 4. The depth of the body mounting hole φ54 should be decided
according to the mounting height referring to dimension 'B'.
※ 5. The machining dimension is for -A/-G：Gasket option.

BA

1113.5※125

φ16Tip Shape-0.1

φ54 -0.2

Refer to A ：Female Threaded
for unlisted dimensions.

B ：Female Threaded (with Anti-Rotation Pinhole)
Push Side Port：O-ring (Included)
OR NBR-90 P7-N
(Option -A / -G)31φ213135.5

Anti-Rotation Pinhole

Piping Method
Ｇ：Gasket Option (with R-Thread Plug)

Pull Side Port：O-ring (Included)

max.1.5

OR NBR-90 P7-N
(Option -A / -G)

2-R1/8 Thread Plug

External Dimension List
Model

WLA0400-2□□-010

WLA0400-2□□-015

WLA0400-2□□-020

A55

55

60

B

21

2126

S：Piping Option (Rc Thread)

Notes :※ 1. Mounting bolts are not provided. Please prepare them according to
the mounting height referring to dimension '※１'.

Pull Side Port
Rc1/8 Thread※ 2. Speed control valve is sold separately. Please refer to P.7.

Push Side Port
Rc1/8 Thread

5Model No.
Indication

ActionDescription

Features

Specifications

Performance
Curve

External Dimensions (WLA0500)
A ：Female Threaded

76
33

432-R6

φ15.5

M8×1.25 Thread

Width

Depth 1614□5366

Cautions

3615 15(max.17)

R1/8 Thread Plug (Included)(Option -A only : Speed Control
Valve Port)

Pull Side Port

φ5 or less※5(Option -A/-G)※This drawing shows WLA0500-2AA.

※2

Accessory

Machining Dimensions of Mounting Area (WLA0500)

A：Gasket Option (With Ports for Speed Controller：R-Thread Plug Included)

Pull Side Port：Rc1/8 Thread

ExternalDimensions

8φ9

Push Side Port

φ5 or less※5(Option -A/-G)
4-M6×1 Thread ※3□53

Remove all burrs※5

φ64 +0.3
0Rz 6.3

C0.6

4 -φ6.8

Push Side Port：Rc1/8 Thread ※2

Counterbore φ11

R1/8 Thread Plug (Included)(Option -A only : Speed ControlValve Port)※4

φ17Notes :

8.5

10.5

Full Stroke※5※ 3. M6 tapping depth of the mounting bolt should be decided

12°according to the mounting height referring to dimension '※1'.
※11611A30

φ20※ 4. The depth of the body mounting hole φ64 should be decided
according to the mounting height referring to dimension 'B'.

B

※ 5. The machining dimension is for -A/-G：Gasket option.

Tip Shape- 0.1
φ64 - 0.2

Refer to A ：Female Threaded
for unlisted dimensions.

B ：Male Threaded (with Anti-Rotation Pinhole)

36

Push Side Port：O-ring (Included)
OR NBR-90 P7-N
(Option -A / -G)

φ2.5

1515

6

Anti-Rotation Pinhole

Piping Method
Ｇ：Gasket Option (with R-Thread Plug)max.1.5

Pull Side Port：O-ring (Included)
OR NBR-90 P7-N
(Option -A / -G)

2-R1/8 Thread Plug

External Dimension List
Model

WLA0500-2□□-010

WLA0500-2□□-015

WLA0500-2□□-020

A65

65

70

B

24.5

24.5

29.5

S：Piping Option (Rc Thread)

Notes :
※ 1. Mounting bolts are not provided. Please prepare them according to
the mounting height referring to dimension '※１'.

Pull Side Port
Rc1/8 Thread※ 2. Speed control valve is sold separately. Please refer to P.7.

Push Side Port
Rc1/8 Thread

6Air Flow Control Valvemodel B Z W

Accessory：Air Flow Control Valve
Model No. Indication

BZW 010 0 - B

Control Method
B : Meter-out
Design No.
0 : Revision Number
R Thread Size
010 : Rc1/8

Speciﬁcations

Circuit Symbol

Model No.

BZW0100-B

Control Method

Meter-out

Operating PressureMPa

0.1 ~ 1.0

Withstanding Pressure

MPa

1.5

N・m

5~7

Adjusting Screw Number of Rotations
Tightening Torque

10g

Weight

BZW0100-B：Meter-out
P2 PortCylinder Side(Outgoing Side)P1 PortAir Pressure Supply Side(Incoming Side)

13Corresponding Model No.

WLA□

External Dimensions

Flow Rate Graph(Pneumatic Lift Cylinder)
Adjusting Screw

Lock Nut

Controlled Flow Direction

O-ring (Included)

PackingClose

Open4 3.5Hexagon 14

11.5 ~ 17

Rz 6.3

Machining Dimensionsof Mounting Area
0.01 A[ L/ min(ANR) ]KOSMEK

120
100

Flow Rate

φ15.5
φ11φ8(Rc1/8)

40

012

8.8 ±0.1

345

67

Adjusting Screw
Number of Rotations [Rotations]89

Free Flowing Direction(φ8.2)

Rz 6.3

φ7.8 ±0.0220゜

φ2.5 ~ 3.545゜
6.3

A[ L/ min(ANR) ]Cylinder Side(Outgoing Side)

100

Flow Rate

P2 Port

Remove all burrs

40

Fully Opened8060
Fully Closed

200P1 Port
Air Pressure Supply Side(Incoming Side)

00.1

0.2
Pressure Loss

0.3

0.4

[MPa]

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

2. No cutting chips or burr should be at the tolerance part of machining hole.
3. As shown in the drawing, P1 port is used as the air supply side (incoming side) and P2 port as the cylinder side (outgoing side).

710Open →120

φ10 or less

φ13.8 H7 + 0.018
0Pressure Loss 0.2MPa

20

14.8 or more

C0.1Rc1/8 Thread

Pressure Loss 0.3MPa← Close0.1 or less

Prepared Hole 8.2 + 0.10

Pressure Loss 0.4MPa

6000.7 + 0.10φ0.01 A

Pressure Loss 0.5MPa

800.5

Features

ActionDescription

Model No.
Indication

Specifications

Performance
Curve

External
Dimensions

Accessory

Cautions

MEMO

8Pneumatic Lift Cylindermodel W L A

Cautions● Notes for Design
1) Check Speciﬁcations

5) When Clamping on a Sloped Surface of a Workpiece● Please use each product according to the speciﬁcations.

● When clamping an inclined surface, make sure that the clampingsurface and the cylinder mounting surface are parallel.

2) Notes for Circuit Design

A workpiece may move and a piston rod may slip when a cylinder● Ensure there is no possibility of supplying air pressure to the push

is used on an inclined surface. (When the workpiece is a casting,side and the pull side simultaneously. Improper circuit design may

it is recommended that a spiked attachment be used for a cylinder

lead to malfunctions and damages.

on draft angle.)

3) Protect the exposed area of the piston rod when using ona welding ﬁxture.
● If spatter attaches to the sliding surface it could lead to malfunction
and ﬂuid leakage.
4) The Load Direction Given to the Piston Rod● Make sure no force is applied to the piston rod except from the axialdirection. Usage like the one shown in the ﬁgure below will apply
a large bending stress to the piston rod and must be avoided.
In case a load is applied except from the axial direction

When clamping workpieces of diﬀerent heights

Without Spherical Washer

With Spherical Washer

A Combination with Link Mechanism

9Features

Model No.
Indication

ActionDescription

Specifications

Performance
Curve

External
Dimensions

Accessory

Cautions● Installation Notes
1) Check the Usable Fluid

6) Installation of Flow Control Valve● Please supply ﬁltered clean dry air.

● Tightening torque for installation of ﬂow control valve is 5 ~ 7 N･m.

● Oil supply with a lubricator etc. is unnecessary.
When using lubricant, please supply lubricant continuously.

7) Speed Adjustment● Adjust the operating speed about 50 ~ 100mm/s.
If the cylinder operates too fast the parts will be worn out leading

2) Preparation for Piping● The pipeline, piping connector and ﬁxture circuits should becleaned by thorough ﬂushing. The dust and cutting chips inthe circuit may lead to ﬂuid leakage and malfunction.

to premature damage and ultimately complete equipment failure.
● Turn the ﬂow control valve gradually from the low-speed side(small ﬂow) to the high-speed side (large ﬂow) to adjust the speed.

● There is no ﬁlter provided with this product which prevents
8) Checking Looseness and Retightening

contamination in the air circuit.

● At the beginning of the product installation, the bolt may betightened lightly. Check the looseness and re-tighten as required.

3) Applying Sealing Tape
● Wrap with tape 1 to 2 times following the screw direction.
● Pieces of the sealing tape can lead to air leakage and malfunction.
● Please implement piping construction in a clear environment toprevent anything getting in products.
4) Installation of the Cylinder● When mounting the cylinder, use four hexagonal socket bolts (withtensile strength of 12.9) and tighten them with the torque shown in
the table below. Tightening with greater torque than recommended
can dent the seating surface or break the bolt.
Model No.

Thread Size

Tightening Torque (N･m)

WLA0400

M5×0.8

6.3

WLA0500

M6×1105) Installation and Removal of Attachment● When installing or removing an attachment, always use a wrenchon the piston rod to keep it from turning, and tighten it withthe torque shown below.
Attachment

Model No.

Thread Size

Tightening Torque (N･m)

WLA0400

M6×110

WLA0500

M8×1.2516● When installing an external guide, ensure that the piston rod is
not pinched during the entire stroke range of the cylinder.

10Pneumatic Lift Cylindermodel W L A

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

1) Removal of the Product and Shut-oﬀ of Pressure Source● Machines and devices with hydraulic and pneumatic products● Before the product is removed, make sure that safety devices

should be operated and 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 operate or remove the product unless the safety
protocols are ensured.
① Machines and devices can only be inspected or prepared when

hydraulic circuits.
● Make sure there is no trouble/issue in the bolts and respective
parts before restarting.

it is conﬁrmed that the safety devices are in place.
② Before the product is removed, make sure that the above-mentioned
safety devices are in place. Shut oﬀ the pressure and power source,
and make sure no pressure exists in the air and hydraulic circuits.

2) Regularly clean the area around the piston rod.
● If it is used when the surface is contaminated with dirt, it maylead to packing seal damage, malfunctioning and ﬂuid leakage.

③ After stopping the product, do not remove until the temperaturedrops.
④ Make sure there is no trouble/issue in the bolts and respective parts
before restarting a machine or device.
3) Do not touch a cylinder while it is working.
Otherwise, your hands may be injured.

3) Regularly tighten pipe, mounting bolt and others to ensure
proper use.
4) Make sure there is a smooth action without an irregular noise.
● Especially when it is restarted after left unused for a long period,4) Do not disassemble or modify

make sure it can be operated correctly.

● If the product is taken apart or modiﬁed, the warranty will be
voided even within the warranty period.

5) The product should be stored in the cool and dark place
without direct sunshine or moisture.
6) Please contact us for overhaul and repair.

11Features

ActionDescription

Model No.
Indication

Specifications

Performance
Curve

External
Dimensions

Accessory

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 Failure caused by the use of the non-conﬁrming state at the userʼs
discretion.
③ If it is used or operated in an 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

12