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 SI125X280FA Standard Cylinder Specifications
- Model: SI125X280FA
- Type: ISO 15552 compliant double-acting pneumatic cylinder
- Bore size: Ø125 mm
- Stroke: 280 mm (adjustable cushioning)
- Operating pressure: 0.05–1.0 MPa
- Temperature range: -20℃ to 80℃
- Cushioning type: Adjustable pneumatic cushion (both ends)
- Mounting style: Front flange (FA series) with ISO 15552 mounting pattern
- Port size: G1/2 (ISO 228/1 standard)
- Piston rod thread: M45x1.5 external thread
- Seal material: Nitrile rubber (NBR) with wear-resistant guide rings
- Protection rating: IP40 (standard wiper seal)
- Lubrication: Pre-lubricated (Oil-free operation possible)
- Weight: 14.8 kg (without accessories)
- Dimensions:
- Total length: 532 mm (at mid-stroke position)
- Body diameter: Ø140 mm (cylinder tube OD)
- Mounting flange: 200x200 mm square base
- Rod end protrusion: 85 mm (from flange face)
Heavy-duty industrial cylinder designed for high-force linear motion applications. Features corrosion-resistant aluminum alloy construction with chrome-plated steel piston rod (hardness HRC 45-50). The reinforced front flange allows secure mounting for vertical or horizontal installations. Integrated magnetic piston enables position sensing compatibility.
- Automotive production line clamping systems
- Press machine ejection mechanisms
- Foundry equipment door actuators
- Plastic injection molding machine core pullers
- Heavy material handling gates
| Property | Property Value |
|---|---|
| sku | SI125X280FA |
| 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.









