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 SI40X1250 Standard Cylinder Specifications
- Model: SI40X1250
- Type: ISO 6432 compliant single-acting/double-acting cylinder
- Bore size: 40 mm
- Stroke: 1250 mm
- Operating pressure: 0.05–1.0 MPa
- Temperature range: -20℃ to 80℃
- Cushioning: Adjustable pneumatic cushion (both ends)
- Port size: M5x0.8 (standard), G1/8 optional
- Piston rod thread: M12x1.25
- Mounting types: Basic (MF1), front flange (MF2), rear flange (MF3)
- Material: Aluminum alloy barrel, chrome-plated steel piston rod
- Seal material: NBR (standard), optional Polyurethane for high-speed applications
- Protection rating: IP65 (standard), IP67 optional
- Weight: 18.5 kg ±3% (with rod)
- Dimensions: 1370mm(L) × 80mm(W) × 80mm(H) (full extension)
High-torque long-stroke cylinder engineered for heavy-duty linear motion applications. Features wear-resistant chromium piston rod coating and precision honed inner tube surface (Ra≤0.4μm). The extended stroke version requires intermediate support brackets (sold separately) to prevent rod deflection. Requires ISO 8573-1:2010 Class 3-4-3 compressed air.
- Automotive assembly line clamping systems
- Lumber processing machinery pushers
- Plastic injection molding ejectors
- Steel coil handling equipment
- Warehouse vertical lift actuators
| Property | Property Value |
|---|---|
| sku | SI40X1250 |
| 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 | Medium Carbon Steel |
| Magnet | Non-magnetic |
| Bore Diameter | <40mm> |
| Stroke | 1250 mm |
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.









