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 SI40X280 Standard Cylinder Specifications
- Model: SI40X280
- Type: ISO 6432 compliant double-acting cylinder
- Bore size: 40mm (1-9/16")
- Stroke: 280mm (11.02")
- Operating pressure: 0.05-1.0 MPa (7-145 psi)
- Temperature range: -20℃ to 80℃ (-4°F to 176°F)
- Port size: M5x0.8 (standard), G1/8 optional
- Cushioning: Adjustable pneumatic cushion (both ends)
- Mounting style: Basic front flange (ISO 15552 foot mounting compatible)
- Seal material: NBR (Nitrile) with wear-resistant band
- Piston rod material: Chrome-plated carbon steel (S45C)
- Max theoretical thrust: 125.6kgf @ 0.7MPa
- Max speed: 500-800 mm/s (lubricated operation)
- Weight: 2.65kg (5.84 lbs) ±3%
- Dimensions:
- Total length: 380mm (14.96")
- Body diameter: 50mm (1.97")
- Rod diameter: 12mm (0.47")
- Mounting hole spacing: 32mm x 32mm (1.26" x 1.26")
The SI40X280 features a hard-anodized aluminum barrel with corrosion-resistant treatment, designed for high cycle rate applications (over 1 million cycles at rated load). Its compact profile combines with 0.5mm precision stroke tolerance, making it ideal for precision positioning systems. Requires ISO 8573-1:2010 Class 3-4-3 compressed air quality.
- Palletizing robot end-effector actuation
- CNC machine tool clamping mechanisms
- Automotive welding fixture positioning
- Packaging machine lid closure systems
- Textile machinery thread tension control
- Relubricate every 500km cumulative stroke distance
- Inspect rod seals every 6 months in continuous operation
- Replace cushion seals after 1 million direction changes
| Property | Property Value |
|---|---|
| sku | SI40X280 |
| 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 | 280mm |
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.









