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 SI40BX270S Standard Cylinder Specifications
- Model: SI40BX270S
- Bore size: 40 mm
- Stroke: 270 mm
- Operation type: Double-acting
- Working pressure: 0.05–1.0 MPa
- Cushioning: Adjustable pneumatic cushion (both ends)
- Piston rod material: Hard chrome-plated carbon steel
- Tube material: Anodized aluminum alloy
- Seal material: NBR (Nitrile rubber)
- Ambient temperature: -20℃ to 80℃
- Port size: 1/4" NPT (G1/8 optional)
- Mounting type: Foot-mounted (ISO 15552 standard)
- Magnetic sensor slots: 2 (for inductive proximity switches)
- Weight: 2.3 kg ±3%
- Dimensions:
- Total length: 392 mm (at full retraction)
- Body diameter: 40 mm
- Foot mounting base: 50mm(W) × 32mm(H)
- Rod end thread: M10×1.25
High-precision ISO 15552 compliant cylinder featuring corrosion-resistant construction and built-in magnetic piston for position sensing. The SI40BX270S combines 0.5mm low-friction seals with precision honed tubing for smooth operation up to 1.5 m/s piston speed. Features dual anti-rotation design and IP65 protection rating for harsh environments.
- Automated assembly line positioning systems
- Plastic injection molding machine ejectors
- Automotive welding fixture clamping
- Packaging machine pusher mechanisms
- Semiconductor wafer handling equipment
- Theoretical force @0.6MPa: 754N (extend), 680N (retract)
- Minimum start pressure: 0.03 MPa
- Air consumption per cycle: 3.8 liters (ANR)
- Service life: 5,000 km travel distance (NBR seals)
| Property | Property Value |
|---|---|
| sku | SI40BX270S |
| 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 | 270mm |
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.









