2. Piston features bidirectional Y-seal structure with cushioning function, offering extended service life and low friction resistance;
3. Aluminum barrel with cruciform reinforcement and black-anodized piston rod for enhanced corrosion resistance;
4. Precision machined cylinder surface ensures smooth operation;
5. Multiple cylinder specifications and mounting accessories available for flexible configurations.
Category: Standard Cylinders | Brand: AIRTAC | Series: SI125
AirTAC SI125BX270 Standard Cylinder Specifications
- Model: SI125BX270
- Type: ISO 15552 compliant double-acting cylinder
- Bore size: 125 mm
- Stroke: 270 mm (customizable 25-1000mm)
- Operating pressure: 0.1-1.0 MPa
- Temperature range: -20℃ to 80℃
- Cushion type: Adjustable air cushion (both ends)
- Mounting style: Standard bracket mounting (ISO 15552 accessory compatibility)
- Port size: G3/8 (NPT1/2 optional)
- Piston rod thread: M20×1.5 external thread
- Material:
- Tube: Aluminum alloy with hard anodizing
- Piston rod: Chrome-plated steel
- End caps: Die-cast aluminum
- Seal material: NBR (Nitrile) standard, optional FKM/Viton
- Protection rating: IP65 (standard), IP67 optional
- Weight: 9.8 kg ±3% (including mounting accessories)
- Dimensions:
- Extended length: 762 mm
- Retracted length: 492 mm
- Body diameter: 140 mm
- Mounting hole spacing: 180×180 mm
High-torque industrial cylinder designed for heavy-duty applications requiring precise linear motion. Features wear-resistant chromium plating on piston rods and integrated shock absorption system. Includes magnetic piston version (SI125MX270) for position sensing compatibility. Requires ISO VG32 hydraulic oil lubrication if used in high-cycle applications (>500,000 cycles/year).
- Automotive production line clamping fixtures
- Steel mill material handling systems
- Plastic injection molding ejectors
- Paper processing machinery
- Shipbuilding alignment tools
| Property | Property Value |
|---|---|
| sku | SI125BX270 |
| 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°C to 80°C Speed Range: 30-500 mm/s |
| Port Size | PT 1/2 |
| Piston Rod Material | SUS304 |
| Magnet | Non-magnetic |
| Bore Diameter | 125mm |
| 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.









