Airtac SI125 Standard Cylinder SI125X272
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 SI125X272 Standard Cylinder Specifications
- Model: SI125X272
- Type: ISO 15552 compliant standard cylinder (double-acting)
- Bore size: 125mm
- Stroke: 272mm
- Operating pressure: 0.05–1.0 MPa
- Cushioning: Adjustable pneumatic cushion at both ends
- Port size: G3/8 (NPT1/2 optional)
- Mounting style: Basic type (axial mounting accessories available)
- Piston rod thread: M33×2 external thread
- Material: Aluminum alloy barrel, chrome-plated piston rod
- Seal material: NBR (Nitrile rubber)
- Temperature range: -20℃ to 80℃
- Weight: 7.8kg ±2% (without accessories)
- Dimensions:
- Total length: 541mm (stroke 272 + extended components)
- Body diameter: Ø125mm
- Mounting base: 165×165mm square pattern
- Rod end bracket: 60×60mm
- Max theoretical force: 1,227N @ 0.63MPa
- Air consumption: 3.45L/stroke @ 0.5MPa
- Lubrication: Non-lube or oil-lubricated operation
A heavy-duty industrial cylinder designed for high-force linear motion applications. Features corrosion-resistant anodized surfaces and precision honed inner tube for smooth operation. The magnetic piston version (SI125MX272) allows position sensing compatibility. Meets ISO 6432 standards for mounting dimensions.
- Automotive production line clamping fixtures
- Foundry equipment for mold ejection
- Paper roll handling systems
- Plastic injection molding machine actuators
- Steel mill damper control mechanisms
Installation note:
For vertical mounting, use auxiliary support brackets (ASNU series). Maintain 0.5-1mm/kg clearance between rod end and load connection to prevent side load stress. Lubricate through air supply at 1-2 drops/m³ for optimal seal life.
- Max piston speed: 500mm/s (cushioned)
- Endurance: 5,000km minimum service life
- Rod deflection limit: ≤0.3mm under max load
| Property | Property Value |
|---|---|
| sku | SI125X272 |
| 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 | Medium Carbon Steel |
| Magnet | Non-magnetic |
| Bore Diameter | 125mm |
| Stroke | 272mm |
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.