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 SI125X280TC Standard Cylinder Specifications
- Model: SI125X280TC
- Bore size: 125 mm
- Stroke: 280 mm
- Operating pressure: 0.05–1.0 MPa
- Cushioning type: Adjustable pneumatic cushion (both ends)
- Mounting style: Front/rear flange mounting (ISO 15552 standard)
- Port size: G1/2 (BSPP thread)
- Piston speed: 50–800 mm/s
- Ambient temperature: -20℃ to 80℃
- Material:
- Tube: Aluminum alloy (hard anodized)
- Piston rod: Chrome-plated steel (Cr-Mo)
- End caps: Cast aluminum
- Seal material: NBR (nitrile rubber) with wear-resistant ring
- Weight: 7.8 kg (excluding mounting accessories)
- Dimensions:
- Total length: 493 mm (at mid-stroke position)
- Width (flange to flange): 165 mm
- Height (including rod): 185 mm
- Rod thread: M20×1.5 (external)
- Air consumption: 13.7 L/stroke (at 0.63 MPa)
- ISO standard: 15552 (formerly ISO 6431)
High-force industrial cylinder designed for heavy-duty linear motion applications. Features triple sealing system with wiper seal, primary seal, and buffer seal for enhanced durability. The hard-anodized barrel surface provides exceptional wear resistance in high-cycle applications. Includes magnetic piston version option (add "-M" suffix) for position sensing.
- Automotive assembly line clamping mechanisms
- Plastic injection molding machine ejectors
- Steel mill material handling systems
- Paper processing equipment actuators
- Die-casting machine core pull units
| Property | Property Value |
|---|---|
| sku | SI125X280TC |
| 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 | 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.









