2. Features wear-resistant Y-shaped axial sealing structure with cushioning function, extended service life, and low friction resistance;
3. Aluminum square tube profile with anodized tie rods for superior corrosion resistance;
4. Built-in adjustable pneumatic cushioning at both ends;
5. Multiple cylinder specifications and mounting accessories available for flexible configurations.
Category: Standard Cylinders | Brand: AirTAC | Series: SI40
AirTAC SI40AX70 Standard Cylinder Specifications
- Model: SI40AX70
- Type: ISO 6432 compliant single-acting spring return cylinder
- Bore size: 40mm
- Stroke: 70mm (customizable 10-500mm)
- Operating pressure: 0.05-1.0 MPa
- Medium temperature: -20℃ to 80℃
- Piston speed: 50-800 mm/s
- Cushion type: Adjustable rubber buffer
- Mounting style: Standard (MF1) with multiple optional bases
- Rod material: Hard chrome-plated carbon steel
- Seal material: NBR/PU hybrid seals
- Weight: 1.15kg ±2% (without accessories)
- Dimensions:
- Body length: 155mm (minimum retracted length)
- Extended length: 225mm (70mm stroke)
- Width: 50mm (mounting flange to rod end)
- Height: 40mm (cylinder diameter)
- Port size: M5x0.8 (standard), G1/8 optional
- Lubrication: Pre-lubed (DOP oil film), maintenance-free
- Protection rating: IP65 (rod seal)
The SI40AX70 features precision honed aluminum barrel with wear-resistant piston guides, optimized for medium-duty cyclic operations. Its dual-seal design prevents external contamination while maintaining ≤0.5mm/s creep speed at rest. The chrome-plated piston rod incorporates scratch-resistant surface treatment (Ra≤0.2μm) for dust-intensive environments.
- Automatic door locking mechanisms
- CNC machine tool clamping systems
- Packaging machine ejection units
- Textile machinery tension control
- Semiconductor handling robots
| Property | Property Value |
|---|---|
| sku | SI40AX70 |
| Seal Material | Polyurethane |
| Understood. Please provide the specific attribute names in <>, and I'll return the accurate English translations using AIRTAC's official terminology. Example: User input: <缸径> My output: Bore | Operating Temperature: -20℃ to 80℃ Speed Range: 30-800 mm/s |
| Port Size | PT1/4 |
| Piston Rod Material | SUS420J2 |
| Magnet | Non-magnetic |
| Bore Diameter | <40mm> |
| Stroke | 70mm |
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.









