1. Patented crank-slider mechanism (constructed with high-strength, wear-resistant materials): a) Ensures structural stability and generates exceptional clamping force with minimal air pressure through high mechanical efficiency. b) Integrated self-locking mechanism maintains clamping force even during air supply interruption.
2. DIN-compliant four-side mounting configuration for flexible installation options.
3. Monolithic design integrating clamping mechanism with pneumatic cylinder for enhanced structural integrity.
4. Specially engineered sensor bracket with anti-spatter design and ±15° adjustable angles, featuring anti-interference shielding for stable signal transmission.
5. Space-efficient oval-shaped cylinder housing optimizes equipment layout in confined spaces.
6. Modular clamp arms (AM1/AM2/AM3/AM4) with R/C/L variants (radial/vertical/lateral orientations) adapt to diverse operational demands.
7. Tool-free opening angle adjustment via replacement of adjustment screws (15°-180° range).
Category: Welding Clamping Cylinders | Brand: AIRTAC | Series: JCK
AirTAC JCK Heavy-Duty Welding Clamping Cylinder JCK40X75K Specifications
- Model: JCK40X75K
- Bore size: 40mm
- Stroke: 75mm
- Operating pressure: 0.05-1.0 MPa
- Piston rod material: Hard chrome-plated carbon steel (S45C)
- Cylinder tube: Anodized aluminum alloy
- Mounting type: Fixed bracket (FC type)
- Cushioning: Adjustable rubber buffer + air cushion
- Operating temperature: -20℃ to 80℃
- Port size: M5x0.8 (standard) / NPT1/8 (optional)
- Rod end thread: M10x1.25
- Seal material: Heat-resistant NBR (Nitrile rubber)
- Weight: 1.5kg ±5%
- Dimensions: 155mm(L) × 48mm(W) × 48mm(H)
- Protection rating: IP54 (standard dust/moisture resistance)
- Max thrust: 502N @ 0.63MPa
- Repeat positioning accuracy: ±0.5mm
Robust welding-grade cylinder with reinforced structure for high clamping force applications. Features dual cushioning system and anti-spatter coating, designed to withstand welding sparks and industrial debris. The hardened piston rod resists scoring in high-cycle operations (up to 1 million cycles). Requires filtered air (40μm) with ISO VG32 lubricator oil.
- Robotic welding fixture systems
- Automotive chassis component clamping
- Metal fabrication jig positioning
- Forging press auxiliary hold-down
- Heavy part alignment in CNC machining
| Property | Property Value |
|---|---|
| sku | JCK40X75K |
| Clamping Arm Position Code | Clamping Arm Horizontal |
| Clamping Arm Model Code | Without Clamping Arm |
| Opening Angle | 75mm |
| Port Size | PT1/8 |
| Bore Diameter | <40mm> |
Returns will be accepted for up to 15 days of Customer’s receipt or tracking number on Not used items. You, as a Customer, are obliged to inform us via email before you return the item, only in the case of:
- Received the wrong item.
- Item arrived not as expected (ie. damaged packaging).
- Item had defects.
- Over delivery time.
- The shipper does not allow the goods to be inspected before payment.
The returned product(s) must be in the original packaging, safety wrapped, undamaged and unworn. This means that the item(s) must be safely packed in a carton box for protection during transport, possibly the same carton used to ship to you as a customer.







