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Home/Product Series/AirTAC Sourcing/Welding Clamp Cylinders/JSK
AirTAC sourcing reference•Welding Clamp Cylinders
SERIESJSK

AirTAC JSK Power Clamp Cylinders

JSK own horizontal and vertical power clamp cylinder product illustrations
Series product image
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Power clamp cylinders with 40/50/63/80 mm bores. Confirm horizontal or vertical position, arm...

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

Power clamp cylinders with 40/50/63/80 mm bores. Confirm horizontal or vertical position, arm geometry, inductive PNP/NPN sensing and G-thread port layout; send the installed model, quantity and destination for a quotation.

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.

Request type
AirTAC originalModel matchingChina-source alternative

Find your JSK type

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

JSK

Horizontal clamping position · arm/port matching

JSKV

Vertical clamping position · own angle limits

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Send the model, quantity and destination. For multiple items, attach a parts list or BOM.

Match a JSK model code

Drawings & dimensions

Installation Drawings & Technical Specifications

Compare installed dimensions
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JSK torque at 0.5 MPa pressure timing ports and sensor specificationsClick to open full drawing ↗

JSK torque at 0.5 MPa pressure timing ports and sensor specifications

Helpful for Model Matching:

  • Original code, label, photo or fixture drawing
  • Bore and horizontal/vertical position
  • AM arm, R/C/L, offset and desired opening angle
  • G port size and blank/B layout
  • K PNP, KN NPN or no sensor
  • Actual pressure, torque/force requirement and arm geometry
  • Quantity, destination and BOM accepted
  • Choose exact bore and AM arm dimension sheet
  • Compare horizontal/vertical and R/C/L arm geometry
  • Resolve bore80 AM1/AM2 Note2 20mm/90° versus generic grouped drawing135°/105° conflict before final fit approval
  • Match G port size, blank/B layout and mounting interfaces
  • Confirm inductive PNP/NPN sensor and actual fixture load

Catalogue Technical Specifications

AirTAC reference data
Identity / boreDouble-acting JSK power clamp cylinder, bore 40/50/63/80 mm. Bore 40 circular arm interface; 50/63/80 oval. Ordinary arm, position, sensor and port choices remain matching fields on this family page.
Output torque at 0.5 MPa40: 120 N·m; 50: 160 N·m; 63: 380 N·m; 80: 800 N·m, all at 0.5 MPa. This is torque, not arm-tip force or a universal load rating; actual force depends on geometry and applied pressure.
Pressure / airWorking 0.3–0.8 MPa; proof 1.2 MPa is not working pressure. Air filtered through a 40 μm element.
Temperature / cycle / cushion−20 to +70°C. Minimum 1 second clamping and 1 second opening, not one second for the complete cycle. Air buffer cushioning.
Ports / thread40: 1/8; 50/63/80: 1/4. Ordering table publishes G thread only. Blank or B selects the illustrated port layout; compare the installation drawing; PT/NPT options are not listed.
Position / armBlank horizontal, V vertical. Arm blank: no clamping arm. 40: AM1 or AM3; 50/63/80: AM1/AM2/AM3/AM4. Each supplied arm needs R/C/L orientation per illustrated ordering diagram.
Offset / maximum opening angle40 AM1: offset 15 mm, max 135° horizontal / 120° vertical; AM3: offset 45 mm, max 105° both positions. 50/63 AM1/AM2: offset 15 mm; AM3/AM4: 45 mm; max 135° horizontal / 105° vertical. Bore 80 AM1/AM2 exception: offset 20 mm and 90° opening per ordering Note2, conflicting with the generic angle table/drawing; use a conservative 90° screen and confirm the exact supplied arm. 80 AM3/AM4: offset 45 mm, max 135° horizontal / 105° vertical. No-arm angle requires chosen-arm confirmation; published general opening range starts at 5°.
SensorElectrical inductive approaching position sensor. Blank none; K PNP; KN NPN. K/KN may be ordered separately. No S magnet suffix, reed-switch assumption or unverified wiring/power rating.
Mass40/50/63/80: 2.0/3.7/5.0/11.5 kg. Catalogue Note1 includes a 15 mm offset arm; bore 80 AM1/AM2 offset-20 exception means do not use this figure as a precise shipping weight for every code.
Installation / adjustmentUse bore/arm/position-specific drawings for mounting and port layout. Adjust arm to maximum opening, remove plug with H6 (40) or H8 (50/63/80), then adjust desired angle with the same hex-wrench size. Fixed inductive block moves with piston rod; no further sensor adjustment is specified after changing angle.
Materials / fitRetain exact drawings and materials source. Material list is based on a certain bore, so exact-bore material confirmation is required. Drawings state pin-hole position tolerance ±0.02 and threaded-hole position tolerance ±0.1 mm. No self-locking or air-loss holding capability is established by this JSK catalogue.
Common Model Codes & Configurations:Useful for an RFQ
JSKJSKVJSK40AM1RKGJSKV40AM3CKNG

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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

JSK[V][40/50/63/80][AM1/2/3/4 + R/C/L][K/KN]G[B]Published position, arm, inductive sensor and G-port fields
JSK40AM1RKGJSKV40AM3CKNGJSK63AM2LGJSK80AM1RKGB
①Position / bore②Arm / direction③Sensor / thread / port layout
JSK; blank horizontal or V vertical; 40/50/63/80.Blank no arm; 40 AM1/AM3; 50–80 AM1/AM2/AM3/AM4; supplied arm R/C/L. Bore 80 AM1/AM2: offset 20 mm, opening 90°.Blank no sensor, K PNP, KN NPN; G thread only; blank or B port layout.

Avoid a wrong match

  • Bore 40 does not list AM2/AM4 arms.
  • Bore 80 AM1/AM2 has the explicit 20 mm offset / 90° opening exception; do not use the generic 15 mm / 135° figure.
  • Only G thread is published; missing thread stays unconfirmed.
  • K/KN are inductive PNP/NPN sensors, not a magnetic switch or S code.
  • 120/160/380/800 N·m is torque at 0.5 MPa, not clamping force in N or kg.
  • Minimum clamping and opening time is one second each.
  • Self-locking or holding after loss of air is not specified for JSK; JCK ratings do not apply.
  • No-arm configurations need the intended arm geometry to determine opening-angle and force suitability.

Read the model code

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

JSK40AM1RKG

①Position / bore

JSK; blank horizontal or V vertical; 40/50/63/80.

②Arm / direction

Blank no arm; 40 AM1/AM3; 50–80 AM1/AM2/AM3/AM4; supplied arm R/C/L. Bore 80 AM1/AM2: offset 20 mm, opening 90°.

③Sensor / thread / port layout

Blank no sensor, K PNP, KN NPN; G thread only; blank or B port layout.

About JSK

Power clamp cylinders with 40/50/63/80 mm bores. Confirm horizontal or vertical position, arm geometry, inductive PNP/NPN sensing and G-thread port layout; send the installed model, quantity and destination for a quotation.

Matching Questions

Does JSK80 AM1/AM2 open to 135°?

Ordering Note2 explicitly specifies 20 mm offset and 90° opening for bore 80 AM1/AM2. This exception conflicts with the generic table and grouped AM1(2) drawing (135° horizontal / 105° vertical). The lookup uses a conservative 90° screen; confirm the actual supplied arm and angle. Confirm the exact arm and installed opening before replacement.

Is torque the clamping force on my workpiece?

The stated torque is measured at 0.5 MPa. Arm-tip force depends on effective lever geometry and application pressure. Send your fixture drawing and force requirement for confirmation.

Can I assume self-locking after loss of air?

The JSK catalogue does not establish that behavior. Send the required holding condition for technical confirmation; do not transfer claims from another clamp series.

JSK

Include this series in a project RFQ

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

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