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 SI125AX290S Standard Cylinder Specifications
- Model: SI125AX290S
- Bore size: Ø125mm
- Stroke: 290mm
- Operating pressure: 0.1-0.9 MPa
- Temperature range: -20℃ to 80℃
- Port size: Rc1/2 (G1/2 optional)
- Cushioning: Adjustable pneumatic cushion (both ends)
- Mounting style: Basic MF1 (front flange) with optional accessories
- Piston rod material: Chrome-plated carbon steel (S45C)
- Tube material: Aluminum alloy with hard anodized surface
- Seal material: Nitrile rubber (NBR) standard
- Protection rating: IP65 (dust-tight & protected against water jets)
- Weight: 24.8kg (without accessories)
- Dimensions: 490mm(L) × 180mm(W) × 180mm(H) (full extension)
- Max theoretical thrust: 11,250N @0.63MPa
- Piston speed: 50-700mm/s (optimal range)
High-torque industrial cylinder engineered for heavy-duty linear motion tasks. Features precision honed tubing and triple-lip rod seal for leak-free operation. The corrosion-resistant coating withstands harsh environments while the magnetic piston option (available as -M suffix) enables position sensing.
- Press machine ejection systems
- Automotive welding fixture actuation
- Steel coil handling equipment
- Injection molding machine core pulls
- Palletizing robot end-effectors
| Property | Property Value |
|---|---|
| sku | SI125AX290S |
| 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 | SUS420J2 |
| Magnet | S-Magnetic |
| Bore Diameter | 125mm |
| Stroke | 290mm |
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.







