Airtac JCK High Strength Welding Clamping Cylinder JCK40X30K
Genuine AirTAC welding clamp cylinder, order code JCK40X30K from the JCK40 range. The options this code selects are decoded below; series data follow the official AirTAC catalog.
- Opening angle30°
- Arm position and clamp armHorizontal arm · No clamp arm
- Sensor and threadPNP electrical sensor (K) · PT thread
- Bore40 mm
- PortPT1/8
- Output torque (0.5 MPa)120 N·m
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac JCK High Strength Welding Clamping Cylinder JCK40X30K
The JCK40X30K leaves the jaw open-ended: no clamp arm is fitted, so you machine your own interface onto the crank. The 40 mm double-acting body still delivers 120 Nm of torque at 0.5 MPa over its 30 degree opening angle, and the PNP electrical sensor K reports clamp position back to the controller.
Inside, a toggle-link crank slider holds the clamped position at up to 380 Nm if air is lost, and the air cushion softens the ends of the 1 s stroke. The body mounts on four faces with DIN-standard dimensions, ports are PT1/8, and filtered air at 0.3 - 0.8 MPa (43 - 116 psi) drives the clamp from -20 to +70 C.
Airtac JCK High Strength Welding Clamping Cylinder JCK40X30K Technical Specifications
| Order code | JCK40X30K |
|---|---|
| Product | Welding Clamp Cylinder |
| Opening angle | 30° |
| Arm position and clamp arm | Horizontal arm · No clamp arm |
| Sensor and thread | PNP electrical sensor (K) · PT thread |
| Bore | 40 mm |
|---|---|
| Port | PT1/8 |
| Output torque (0.5 MPa) | 120 N·m |
| Maximum holding torque | 380 N·m |
| Maximum load torque | 2.2 N·m (1 s cycle) · 3.3 N·m (2 s cycle) |
| Clamping torque 0.3 / 0.5 / 0.8 MPa | 72 / 120 / 191 N·m |
| Weight (135°, 15 mm arm) | 2.2 kg |
| Acting | Double acting |
| Fluid | Air, filtered to 40 µm |
| Operating pressure | 0.3 - 0.8 MPa (43 - 116 psi) |
| Proof pressure | 1.2 MPa (175 psi) |
| Temperature | -20 to +70 °C |
| Opening angle | 15 - 135° in 15° steps |
| Clamp / open time | 1 s / 1 s minimum |
| Position sensing | Electrical or pneumatic sensor |
| Cushion | Air cushion |
Source: AirTAC JCK series datasheet (p.373-374, p.387), ordering code and specifications.
How to choose
Choose JCK40X30K over JCK40X30AM3RKN or JCK40X30AM3RKA when your fixture needs a custom jaw rather than the 45 mm offset AM3 arm; the PNP sensor here suits PLC inputs that source current, while KN gives NPN and KA gives a pneumatic signal. The 30 degree setting sits between the narrower JCK40X15 and the wider JCK40X45 codes, and it can be changed later by replacing the adjusting screw.
Applications
Custom jaw weld fixtures
With no arm fitted, the crank accepts a machined clamp interface, letting the 120 Nm torque at 0.5 MPa hold irregular weldments on a dedicated fixture.
Modular DIN-base tooling
Four-face mounting with DIN-standard dimensions lets the 40 mm body integrate cleanly into standardized fixture plates and modular welding tables.
Tight-access clamping
The 30 degree opening keeps the swing envelope small in crowded weld cells, and the angle can later be changed by replacing the adjusting screw.
FAQ
What are the key figures of the JCK40X30K?
Bore 40 mm; opening angle 30 degrees; no clamp arm fitted; PNP electrical sensor (K); clamping torque 72 / 120 / 191 Nm at 0.3 / 0.5 / 0.8 MPa; maximum holding torque 380 Nm; PT1/8 ports; operating pressure 0.3 - 0.8 MPa (43 - 116 psi); proof pressure 1.2 MPa (175 psi); temperature -20 to +70 C; air cushion; clamp and open time 1 s minimum.
What does the K in JCK40X30K add, and can an arm be fitted later?
K specifies the PNP electrical position sensor; KN would give NPN (10-30 V DC, 2 mm sensing distance), KA a pneumatic sensor, and a blank would omit sensing altogether. The catalog lists AM1 and AM3 clamp arms in R, C and L hole layouts, with AM1 offering a 15 mm offset and openings up to 135 degrees versus 105 degrees for a horizontal AM3.