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 SI40X525S Standard Cylinder Specifications
- Model: SI40X525S
- Type: ISO 6432 compliant single-acting spring return cylinder
- Bore size: 40 mm
- Stroke: 525 mm
- Operating pressure: 0.05–1.0 MPa
- Cushioning type: Fixed rubber buffer (both ends)
- Mounting style: Standard MF1 (front flange) with optional accessory mounts
- Port size: M5x0.8 (standard) or NPT1/8 (optional)
- Operating temperature: -20℃ to 80℃
- Piston rod material: Hard chrome-plated steel
- Cylinder tube: Anodized aluminum alloy
- Seal material: NBR (nitrile rubber)
- Weight: 3.8 kg (with rod extension)
- Dimensions:
- Extended length: 955 mm (stroke + base length)
- Retracted length: 430 mm
- Width (flange to rod end): 62 mm
- Height (mounting base): 80 mm
- Max theoretical force: 125.6 N @ 0.6 MPa
- ISO speed range: 50–800 mm/s
- Protection rating: IP65 (standard), IP67 optional
A heavy-duty long-stroke pneumatic cylinder engineered for industrial automation systems requiring precise linear motion. Features dual anti-rotation design with precision-guided piston rod, making it ideal for vertical applications. The corrosion-resistant construction ensures reliable performance in humid environments. Requires filtered air (≤5μm) with lubrication (ISO VG32 recommended).
- Automotive assembly line clamping fixtures
- Plastic injection molding machine ejectors
- Textile machinery thread control systems
- Warehouse vertical lift platforms
- Printing press paper feed mechanisms
| Property | Property Value |
|---|---|
| sku | SI40X525S |
| 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 | S-Magnetic |
| Bore Diameter | <40mm> |
| Stroke | 525mm |
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.









