Auto Backup Pin
Mode lW DC

Prevents Chattering and Distortion Counter to the Load
Pin Touches Workpiece Softly and Stops to Provide Support

BeforeAfter

With No Backup

With Backup

LoadLoadChattering

Prevents Chattering

Chattering on base plate, molding and workpiece due to the work load.

Prevention of chattering from the load enables
high-quality implementation and processing.
(The pin touches workpiece softly and holds it instantly.)

597

Action Description /Application Examples

Features / Advantages

Model No. Indication / Specifications
External Dimensions / Accessory / Cautions

Locating＋Productivity Improvement・Cost Reduction：From Manual to Automatic

Automatic Following of the Height

After

The pin (plunger) descends and reaches the reference surface by the workpiece weight (slight force).
Since the pin descends according to workpiece, it can absorb the height tolerance of workpieceand instantly complete the height adjustment. Time reduction in setup improves machine availability.

Hand・Clamp

SupportValve・Coupler

Auto
Backup Pin

Minute adjustment in unreachable or non-visible places
is difficult and takes time.

LocatingCautions・Others

No Time Saving (Manual Type)

BeforeClamp

WDCManual Adjustment
with a Screw

High-Power Pneumatic
Work Support
W NCPneumatic
Work Support
Rodless Hollow
W NA

Pin descends according to workpiece.

Withstand the load which isless than support force

Manifold
Block/Nut
DZ- R
DZ- CWorkpiece
Seat

Release Air Pressure

LZ- S

Slight Contact ForceW NZ- SQ

Plunger Spring Force

Seat

ＯＮ

Release Air PressureＯＮ

Release Air Pressure ＯＦＦ

Lock with Built-in Spring

Zero Clearance
Able to Install Attachment

Quality Improvement・Yield Rate Reduction：Suitable for the Work Required of Accuacy
After

Zero Clearance

It enables high-accuracy implementation and yield rate reduction, since there is no clearance
regardless of the variation in height caused by workpiece distortion, the gap between seat surface
and tip of the pin, or solid difference.

B eforeChattering

General fixed backup pin tends to have chattering due to the variation in height caused by workpiece distortion,
the gap between seat surface and tip of the pin, or individual differences in pin height. Chattering causes low
accuracy and assembling failure. Moreover, every time component changes, the backup pin has to be changed.

Deformed by LoadClearance
Fixed Backup Pin598

Auto Backup Pinm od e l W D C

Action Description※ The internal structure is a simplified figure. Actual components are different.

LoadPlungerCollet

Lock with Spring(Grip)

Spring for Locking

Plunger Spring
Spring holds up
the plunger

Release Air

Before setting (When releasing)Release Air Pressure

ＯＮ

When setting workpiece

ＯＮRelease Air Pressure

When supporting
Release Air PressureＯＦＦ

Supply release air pressure to unlock

Set a workpiece. The plunger goes down

When release air pressure is OFF,the plunger. The plunger lifts up todue to the weight of the workpiece.

the collet locks the plunger securely

the stroke-end by plunger spring.

※The plunger does not go downwith the spring for locking.

when plunger spring force is stronger

It withstands the load which is lower

than the workpiece weight.

than support force.

Application Examples

Soldering

Mounting

Screw Fastening

Base Plate, LCD Panel etc.

Press-Fit Machine

Thin-walled Section

599

HDD Installation・Press Fit

Action Description /Application Examples

Features / Advantages

Model No. Indication

Model No. Indication / Specifications
External Dimensions / Accessory / Cautions

Locating

Specifications＋Clamp

Model No.

WDC0030-E

Support Force ※1

WDC00 3 0 - E
E：Spring Advance Model
Design No. (Revision Number)

N

Plunger Strokemm

4Cylinder Capacity

mm319Plunger Spring Force※2

N

0.1 ~ 0.3

Max. Operating Pressure

MPa

0.7

Min. Operating Pressure

MPa

0.35

Withstanding Pressure

MPa

1.0

Operating Temperature℃

Usable Fluid
Support Force：3NLocating

3Hand・Clamp

SupportValve・Coupler

0 ~ 70Cautions・Others

Dry Air

Recommended Tightening Torque for Main Body N・m

2Weight7gAutoBackup Pin
WDC

External Dimensions

High-Power Pneumatic
Work Support※The drawing shows the released state of WDC0030-E.

W NC

Width 8Pneumatic
Work Support
Rodless Hollow
W NAManifold
Block/Nut
DZ- R
DZ- C

Machining Dimension for Recommended Mounting HoleSR5LZ- S
W NZ- SQ

.7.D

8.5

Plungerstroke4

Depth 4

Ｍ2.5×0.45 Thread

P.C

25

φ2.5

O-ring (Included)
SS7.5 (NOK-made)0.03 A

12.5S
R0.4 or less

φ4.5

Ｂ(=8 ~ 15)

M10×1.0 Thread(Prepared Holeφ9 +- 0.15
0.08 )

1.40φ8.8 - 0.1

Ａ

4.5

M10×1.0 Thread[B-4] or more

16.512C0.6 or more

φ1.5 or less
Air Release Port

Make sure not to damage the sealing part
Hatched Area 12.5S

Accessories：Manifold Block for Mounting

Please contact us for further information.

Cautions※1. This product performs lock action with spring and release action with air pressure; therefore, support force is constant.
※2. Prepare the stopper for a thin and light workpiece if necessary.
When using multiple backup pins, a workpiece may be pushed up by plunger spring force.
1. When mounting an attachment on the tip of plunger, the load ratio to the plunger spring force has to be 30% or less.
(Plunger direction either vertical or horizontal: the load ratio has to be 30% or less.)Ex.) Plunger spring force=0.1-0.3N
Attachment maximum weight = 0.1×0.3/0.009807 ＝ 3g
However, the calculated value may diﬀer due to the plunger sliding friction and spring speciﬁc etc., so the load ratio should be low as much as possible.

600

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

1) Removal of the Machine and Shut-oﬀ of Pressure Source● The hydraulic machine and air compressor should be operated● Before removing the product, make sure that the safety devices

and maintained by qualiﬁed personnel.

are in place. Shut oﬀ the pressure and power source and makesure no pressure exists in the air and hydraulic circuits.

2) Do not operate or remove the product unless the safety protocols
are ensured.

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

① The machine and equipment can only be inspected or preparedwhen it is conﬁrmed that the safety devices are in place.

2) Regularly clean the area around the piston rod and plunger.

② Before the product is removed, make sure that the above-mentioned● If it is used when the surface is contaminated with dirt, it may

safety devices are in place. Shut oﬀ the pressure and power source,

lead to packing seal damage, malfunctioning, ﬂuid leakage.

and make sure no pressure exists in the air and hydraulic circuits.
③ After stopping the product, do not remove until the temperaturedrops.
④ Make sure there is no trouble/issue in the bolts and respective partsbefore restarting the machine or equipment.
3) Do not touch a clamp (cylinder) while it is working.
Otherwise, your hands may be injured.

3) Regularly clean the reference surfaces (taper reference surfaceand seating surface) of locating products (SWT/SWQ/SWP/VRA/
VRC/VX/VXE/VXF/WVS/VWH/VWM/VWK).
● Locating products (except VRA/VRC/VX/VXE/VXF and SWR without
air blow port) can remove contaminants with the cleaning function.
When installing a workpiece or a pallet, make sure there are no4) Do not disassemble or modify.
● If the equipment is taken apart or modiﬁed, the warranty will be
voided even within the warranty period.

contaminants such as thick sludge.
● Continuous use with dirt on components will lead to locating failure,ﬂuid leakage and malfunction.

4) Regularly tighten pipe, mounting bolt, nut, snap ring, cylinderand others to ensure proper use.
5) Make sure the hydraulic ﬂuid has not deteriorated.
6) Make sure there is a smooth action without an irregular noise.
● Especially when it is restarted after left unused for a long 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.

715

Notes on Handling

Maintenance/Inspection

Warranty

Locating＋Clamp● Warranty

Locating

1) Warranty Period

Hand・Clamp● 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

SupportValve・Coupler

Cautions・Others

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.

Cautions
Installation Notes
Maintenance/Inspection
Warranty③ 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 andCompany Profile
Company Profile
Our Products
History

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Search by
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deterioration.
(Such as rubber, plastic, seal material and some electric components.)

Sales Offices

Damages excluding from direct result of a product defect shall be
excluded from the warranty.

716

Company Profile

Sales Offices
Sales Offices across the WorldJAPANHEAD OFFICE

Overseas Sales
United States of America

TEL. +81-78-991-5162

FAX. +81-78-991-8787

KOSMEK LTD. 1-5, 2-chome, Murotani, Nishi-ku, Kobe-city, Hyogo, Japan 651-2241〒651-2241

兵庫県神戸市西区室谷2丁目1番5号

FAX. +1-630-620-9015

SUBSIDIARY

TEL. +1-630-620-7650

KOSMEK (USA) LTD.

650 Springer Drive, Lombard, IL 60148 USA

MEXICOREPRESENTATIVE OFFICE

TEL. +52-442-161-2347

KOSMEK USA Mexico Office

Av. Santa Fe #103 int 59 Col. Santa Fe Juriquilla C.P. 76230 Queretaro, Qro Mexico

EUROPESUBSIDIARY

TEL. +43-463-287587

KOSMEK EUROPE GmbH

Schleppeplatz 2 9020 Klagenfurt am Wörthersee Austria

CHINA

TEL. +86-21-54253000

KOSMEK (CHINA) LTD.
考世美(上海)貿易有限公司

INDIA

FAX. +43-463-287587-20
FAX. +86-21-54253709

Room601, RIVERSIDE PYRAMID No.55, Lane21, Pusan Rd, Pudong Shanghai 200125, China
中国上海市浦东新区浦三路21弄55号银亿滨江中心601室 200125

BRANCH OFFICE

TEL. +91-9880561695

KOSMEK LTD - INDIA

F 203, Level-2, First Floor, Prestige Center Point, Cunningham Road, Bangalore -560052 India

THAILANDREPRESENTATIVE OFFICE

TEL. +66-2-300-5132

KOSMEK Thailand Representation Office

67 Soi 58, RAMA 9 Rd., Suanluang, Suanluang, Bangkok 10250, Thailand

TAIWAN

TEL. +886-2-82261860

Full Life Trading Co., Ltd.

16F-4, No.2, Jian Ba Rd., Zhonghe District, New Taipei City Taiwan 23511(Taiwan Exclusive Distributor)

FAX. +66-2-300-5133
FAX. +886-2-82261890

盈生貿易有限公司

台湾新北市中和區建八路2號 16F- 4（遠東世紀廣場）

PHILIPPINES(Philippines Exclusive Distributor)

TEL. +63-2-310-7286

G.E.T. Inc, Phil.

Victoria Wave Special Economic Zone Mt. Apo Building, Brgy. 186, North Caloocan City, Metro Manila, Philippines 1427

INDONESIA(Indonesia Exclusive Distributor)

TEL. +62-21-29628607

PT. Yamata Machinery

Delta Commercial Park I, Jl. Kenari Raya B-08, Desa Jayamukti, Kec. Cikarang Pusat Kab. Bekasi 17530 Indonesia

FAX. +63-2-310-7286
FAX. +62-21-29628608

Sales Offices in Japan
Head OfficeOsaka Sales Office
Overseas Sales
Tokyo Sales Office

Nagoya Sales Office

Fukuoka Sales Office735

TEL. 078-991-5162〒651-2241

兵庫県神戸市西区室谷2丁目1番5号

TEL. 048-652-8839〒331-0815

FAX. 0566-74-8808

愛知県安城市美園町2丁目10番地1

TEL. 092-433-0424〒812-0006

FAX. 048-652-8828

埼玉県さいたま市北区大成町4丁目81番地

TEL. 0566-74-8778〒446-0076

FAX. 078-991-8787

FAX. 092-433-0426

福岡県福岡市博多区上牟田1丁目8-10-101

Global Network
Overseas Aﬃliates and Sales Oﬃces
Distributors

EuropeCanadaU.S.A.
Asia

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TaiwanIndia
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Malaysia
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Indonesia● FOR FURTHER INFORMATION ON UNLISTED SPECIFICATIONS AND SIZES, PLEASE CALL US.
● SPECIFICATIONS IN THIS CATALOG ARE SUBJECT TO CHANGE WITHOUT NOTICE.

JQA-QMA10823

KOSMEK HEAD OFFICE736