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 SI40BX290S Standard Cylinder Specifications
- Model: SI40BX290S
- Type: ISO 6432 compliant double-acting cylinder
- Bore size: 40 mm
- Stroke: 290 mm
- Operating pressure: 0.05–1.0 MPa
- Cushioning type: Adjustable rubber buffer (both ends)
- Port size: G1/8 (ISO 228-1 standard)
- Piston rod material: Chrome-plated carbon steel (HRC 45-50)
- Tube material: Aluminum alloy (anodized surface)
- Seal material: NBR (nitrile rubber)
- Temperature range: -20℃ to 80℃
- Max theoretical thrust: 1260 N (at 0.63 MPa)
- Weight: 3.85 kg ±2%
- Dimensions: 390mm(L) × 50mm(W) × 50mm(H) (minimum retracted length)
- Rod thread: M16×1.5
- Mounting type: Basic (no built-in mounts - requires separate accessories)
- Protection rating: IP65 (with wiper seal installed)
High-precision industrial cylinder with dual anti-rotation design, featuring wear-resistant chromium plating and optimized air consumption. The anodized barrel resists chemical corrosion, while the enhanced buffer system reduces end-impact noise by 15dB compared to standard models. Requires ISO 8573-1:2010 Class 3-4-3 compressed air quality.
- Automated assembly line clamping mechanisms
- Plastic injection molding machine ejectors
- CNC machine tool part positioning
- Automotive welding fixture actuators
- Food processing conveyor diverters
| Property | Property Value |
|---|---|
| sku | SI40BX290S |
| 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 | SUS304 |
| Magnet | S-Magnetic |
| Bore Diameter | <40mm> |
| Stroke | 290mm |
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.









