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 SI125X280STC Standard Cylinder Specifications
- Model: SI125X280STC
- Type: ISO 15552 compliant double-acting cylinder
- Bore size: 125 mm
- Stroke: 280 mm (±1.5mm tolerance)
- Operating pressure: 0.05–1.0 MPa
- Cushioning: Adjustable air cushion at both ends
- Piston rod thread: M24x1.5 external thread
- Port size: G1/2 (ISO 228 standard)
- Ambient temperature: -20℃ to 80℃
- Piston speed: 50–800 mm/s
- Material:
- Tube: Aluminum alloy with hard anodized surface
- Piston rod: Chrome-plated carbon steel (4-5μm thickness)
- Seals: NBR (standard), optional Fluorocarbon for high temp
- Weight: 5.8 kg (excluding accessories)
- Dimensions:
- Extended length: 695 mm
- Retracted length: 415 mm
- Body diameter: 142 mm (max cross-section)
- Mounting base: 165x165 mm (standard ISO mounting pattern)
- Protection class: IP65 (wipers included)
High-force industrial cylinder with 3,500N theoretical thrust at 0.7MPa. Features wear-resistant chromium plating and integrated magnetic field for sensor compatibility. Designed for heavy-duty cyclic operations with 5,000km service life under standard conditions (clean air, proper lubrication). Includes anti-rotation guide for precise linear motion.
- Press machine ejection systems
- Automotive welding fixture actuation
- Foundry equipment door clamping
- Palletizing robot end-effectors
- Injection molding machine core pulls
| Property | Property Value |
|---|---|
| sku | SI125X280STC |
| 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 | S-Magnetic |
| Bore Diameter | 125mm |
| Stroke | 280mm |
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.









