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Home/Product Series/AirTAC Sourcing/Welding Clamp Cylinders/JCK
AirTAC sourcing reference•Welding Clamp Cylinders
SERIESJCK

AirTAC JCK Power Clamp Cylinders

JCK standard product manufacturer reference
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JCK clamps with horizontal/vertical arms, verified angle limits and none/PNP/NPN/air sensing....

Official reference

Based on manufacturer documentation

Model support

For model confirmation

Parts lists

Code, photo, or BOM

Availability / lead time

By model and quantity

Sourcing route & inquiry details

JCK clamps with horizontal/vertical arms, verified angle limits and none/PNP/NPN/air sensing. Send the complete code, arm geometry, pressure and clamping requirement for quotation confirmation.

Know your model? Send it with the quantity for a quote. Not sure? Start with a photo, label or description. We help identify the model and clarify availability and lead time. Mixed parts lists are welcome too.

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AirTAC originalModel matchingChina-source alternative

Find your JCK type

Choose a type; send a model or photo if unsure.

JCK

Standard mechanism · none/PNP/NPN sensor · four-side mounting

JCK-KA

Air-sensing structure · bore 40/50/63 · three-side mounting

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Match an JCK Model and Arm Combination

Drawings & dimensions

Installation Drawings & Technical Specifications

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JCK standard ordering manufacturer referenceClick to open full drawing ↗

JCK standard ordering manufacturer reference

Helpful for Model Matching:

  • Complete cylinder code, horizontal/V, bore, opening angle
  • ArmAM1–4 withR/C/L or no arm;arm mass, centre offset and length
  • Required force, operating pressure, washer depth and final self-lock setup
  • None/PNP/NPN/KA sensor, connector scope, main/signal ports
  • Quantity and destination
  • Match exact arm/bore and horizontal/V drawings.
  • Use actual clamp length/washer depth with pressure curves.
  • Confirm sensor connection and mechanical final self-lock geometry.

Catalogue Technical Specifications

AirTAC reference data
Structure / lockDouble acting rod-crank-slider power clamp. Self-locking is reached only after the mechanism passes dead point at final clamping position and retaining pin rises. Loss-of-air closure claim applies to this state, not every arm position or a certified safety function.
Bore / bodyCodes40/50/63/80; accessory ordering states actual bores40/50/64/80mm.40 circular; 50/63/80 oval. Keep63 code, do not rewrite64.
Position / arm / angleBlank horizontal,V vertical. Angles15/30/45/60/75/90/105/120/135°.40 only AM1/AM3; AM1 horizontalmax135°,verticalmax120°; AM3max105°.50/63/80 AM1–4 horizontalmax135°,verticalmax105°.R/C/L required for supplied arms; blank no arm.
Arm offsetAM1/AM2 nominal15mm, except80 offset20mm. AM3/AM4 offset45mm. Arm mounting and contact geometry require the exact drawing.
Sensor / threadsBlank no switch; K electricalPNP; KN electricalNPN; KA air sensor only 40/50/63. BlankPT,G=G; NPT not published. Main ports40=1/8,50/63/80=1/4.
Operating limitsFiltered air40μm; operating0.3–0.8MPa; proof1.2MPa; −20..70°C; air buffer. Minimum1s clamping and1s opening; fit a speed-control valve.
Output torque / source differenceMain specification at 0.5MPa:40/50/63/80=120/160/380/800Nm. Pressure torque table gives120/165/384/803Nm. Preserve the difference and confirm actual requirement; Nm is not clamp forceN.
Force / lever / holder torqueForce curves depend on arm length and pressure, with maximum torque reached only at final clamping position. Maximum holder torque380/800/1500/2500Nm is not cylinder output torque or universal force.
Moving-arm load torqueMaximum arm-load torque for1s period:2.2/4.5/6/8Nm; 2s period:3.3/6.7/9/11.2Nm. Use arm mass and centre-of-mass offset, not fixture force as arm inertia.
Spacer / self-lock boundarySpacer depth and lever length affect force; excess depth can prevent self-lock. Confirm pressing block and washer geometry. Retaining-pin manual release may spring the arm; stay outside its operating range.
Electrical sensor scopeDS1 KP63/KN63 applies40/50/63; KP80/KN80 applies80.10–30VDC,N.O.,PNP/NPN,rated150mAmax,30Hz,range2mm. Male connectors/cables separately specified; not assumed included.
Arm/screw accessoriesF-JCK bore AMnR/C/L arms and F-JCK bore×angle LM adjusting screws separately orderable.40 only AM1/3; 80 noKA. Confirm accessory bore/arm/angle against cylinder before quotation.
Installation / adjustmentMount standard body from4 sides; KA from3 sides. Arm pivot line,V-block order,side guide plate and washer setup follow source. Sensor/Y-knuckle gap less1.5mm. Exact angle is adjusted by screw/stroke and sensor position; SO2 end-stroke position not changeable.
Common Model Codes & Configurations:Useful for an RFQ
JCK63×135AM1RKJCKV40×120AM1CGJCK50×105AM3LKA

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Technical reference & selection notes

Ordering Codes, Fit Verification & Specifications

Specifications, installation dimensions, and ordering-code notes.

Ordering code matching

Match each code segment

Send a photo if the code is incomplete

Code format

JCK-[blank/V]-[40/50/63/80]×[15…135]-[blank/AMnR/AMnC/AMnL]-[blank/K/KN/KA]-[blank/G]Arm-specific angle limits apply; KA excludes80; NPT not listed
JCK63×135AM1RKJCKV40×120AM1CGJCK50×105AM3LKA
1Position / arm / angle2Sensor / thread
Blank horizontal,V vertical. Angles15/30/45/60/75/90/105/120/135°.40 only AM1/AM3; AM1 horizontalmax135°,verticalmax120°; AM3max105°.50/63/80 AM1–4 horizontalmax135°,verticalmax105°.R/C/L required for supplied arms; blank no arm.Blank no switch; K electricalPNP; KN electricalNPN; KA air sensor only 40/50/63. BlankPT,G=G; NPT not published. Main ports40=1/8,50/63/80=1/4.

Avoid a wrong match

  • TorqueNm is not forceN;use pressure and actual lever length.
  • 40 excludesAM2/AM4;vertical andAM3 angle limits differ from headline135°.
  • 80 has noKA;electrical sensor connector/cable scope is separate.
  • Main specification and pressure torque table differ at0.5MPa;preserve both values.
  • Self-lock requires final dead-point geometry and raised retaining pin;not all-state loss-of-air protection.
  • Manufacturer application photographs are not our customer cases.
  • The ordering note contradicts itself about separate KA purchase;the KA page describes a preinstalled air mechanism. Confirm complete KA cylinder;do not assume a separately replaceable KA switch.

Read the model code

If the label is incomplete, send the readable parts together with a photo.

JCK 63 × 135 AM1R K

63 × 135 AM1RBore / angle / arm

Bore code63(actual64mm),135° horizontal,AM1 offset15mm,R arm specification.

KPosition sensor

Electrical PNP. KN=NPN; KA=air only 40/50/63.

About JCK

JCK power clamps combine a cylinder, lever mechanism and final-position self-lock. Choose horizontal/V vertical position, bore code, opening angle, arm style and R/C/L configuration, then sensor and thread. Confirm arm length, moving load and spacer geometry before quoting force or loss-of-air holding behavior. The KA air-sensing structure has its own linked page.

Matching Questions

Is the published torque the available clamping force?

Main specification at 0.5MPa:40/50/63/80=120/160/380/800Nm. Pressure torque table gives120/165/384/803Nm. Preserve the difference and confirm actual requirement; Nm is not clamp forceN. Force curves depend on arm length and pressure, with maximum torque reached only at final clamping position. Maximum holder torque380/800/1500/2500Nm is not cylinder output torque or universal force.

Does self-lock hold at every arm position?

Double acting rod-crank-slider power clamp. Self-locking is reached only after the mechanism passes dead point at final clamping position and retaining pin rises. Loss-of-air closure claim applies to this state, not every arm position or a certified safety function. Spacer depth and lever length affect force; excess depth can prevent self-lock. Confirm pressing block and washer geometry. Retaining-pin manual release may spring the arm; stay outside its operating range.

JCK

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JCK Add other models, quantities, photos, drawings, or a BOM. One request can cover several product groups.

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Pneupart is a China-based pneumatic sourcing brand for distributors, factories, and MRO buyers. Send a model, label, drawing or BOM for technical confirmation and quotation. Specify whether original AirTAC sourcing or an alternative is required.

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