Airtac SI40 Standard Cylinder SI40X270S
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 SI40X270S Standard Cylinder Specifications
- Model: SI40X270S
- Type: ISO 6432 compliant single-acting/double-acting pneumatic cylinder
- Bore size: 40 mm
- Stroke: 270 mm (±0.5 mm tolerance)
- Operating pressure: 0.05–1.0 MPa
- Cushioning: Adjustable pneumatic cushion (both ends)
- Operating temperature: -20℃ to 80℃
- Port size: M5x0.8 (G1/8 optional)
- Mounting type: Basic (front/rear threaded mounting holes)
- Rod material: Hard chrome-plated steel (S45C)
- Cylinder tube: Anodized aluminum alloy (6063-T5)
- Seal material: NBR/PU compound (oil-resistant)
- Weight: 2.8 kg (with standard accessories)
- Dimensions: 305mm(L) × 50mm(W) × 50mm(H) (retracted length)
- Extended length: 305mm + 270mm stroke = 575mm
- Rod thread: M10x1.25 (external)
- Protection rating: IP65 (standard wipers)
- Lubrication: Pre-lubricated (recommended oil viscosity: ISO VG32)
The SI40X270S features a space-saving design with dual cushion adjustment screws for precise end-position deceleration. Its corrosion-resistant construction and triple sealing system (rod seal + wiper + bearing bush) ensure reliable operation in harsh environments. Requires filtered air (≤5μm) with 1-10 mg/m³ oil mist content.
- Automated assembly line clamping mechanisms
- Packaging machine ejection systems
- CNC machine tool door actuators
- Plastic injection molding ejectors
- Material handling transfer units
Installation note:
Maintain 0.5mm minimum clearance between rod end and load during alignment.
For vertical mounting, use double-acting configuration with fail-safe brake valve.
Lubricate every 3 months under normal operation (500km stroke cumulative).
| Property | Property Value |
|---|---|
| sku | SI40X270S |
| 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 | 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.