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 SI40AX325S Standard Cylinder Specifications
- Model: SI40AX325S
- Type: ISO 6432 compliant double-acting pneumatic cylinder
- Bore size: 40 mm
- Stroke: 325 mm (±1.5mm tolerance)
- Operating pressure: 0.15–0.8 MPa (21.7–116 psi)
- Cushioning type: Adjustable rubber buffer (both ends)
- Port size: M5x0.8 (Rc1/8 NPT optional)
- Piston rod material: Chrome-plated stainless steel (SUS304)
- Tube material: Anodized aluminum alloy (AL6063)
- Seal material: Nitrile butadiene rubber (NBR)
- Temperature range: -20℃ to 80℃ (-4°F to 176°F)
- Weight: 3.8 kg (8.38 lbs) ±2%
- Dimensions:
- Total length: 458 mm (18.03")
- Extended length: 783 mm (30.83")
- Mounting center distance: 50 mm (1.97")
- Rod end thread: M16x1.5
- Tube outer diameter: 55 mm (2.17")
- Protection rating: IP65 (dust-tight & water jet resistant)
- Lubrication: Pre-lubricated (Grease-free operation possible)
High-precision industrial cylinder with extended stroke capability, featuring wear-resistant chromium plating and precision honed tube. The dual adjustable cushioning system minimizes end-impact noise while maintaining positioning accuracy (±0.5mm repeatability). Compatible with all standard ISO mounting accessories.
- Automated assembly line material handling
- Packaging machine pusher mechanisms
- Automotive welding fixture positioning
- Plastic injection molding ejector systems
- Textile machinery tension control
| Property | Property Value |
|---|---|
| sku | SI40AX325S |
| 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 | S-Magnetic |
| Bore Diameter | <40mm> |
| Stroke | 325mm |
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.









