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 SI125AX425S Standard Cylinder Specifications
- Model: SI125AX425S
- Bore size: 125mm
- Stroke: 425mm
- Operating pressure: 0.15–0.8 MPa
- Cushion type: Adjustable pneumatic cushion (both ends)
- Operating temperature: -20℃ to 80℃
- Seal material: NBR (Nitrile Butadiene Rubber)
- Port size: G1/2 (ISO standard)
- Mounting types: Basic type (MF1), Foot mounting (MP2), Front flange (MF2)
- Piston rod thread: M30×2 (External)
- Max speed: 500 mm/s
- Lubrication: Not required (Non-lube design)
- Protection rating: IP40
- Weight: 12.5 kg (excluding accessories)
- Dimensions: 625mm(L) × 125mm(W) × 125mm(H) (Fully extended length)
High-thrust industrial cylinder featuring precision honed aluminum alloy tube with hard anodized surface treatment. The dual-piston design ensures smooth operation under heavy loads, while integrated magnetic ring slots enable position feedback when used with sensors. Optimal for applications requiring consistent force output across long strokes.
- Automotive assembly line clamping systems
- Heavy-duty material handling equipment
- Injection molding machine ejectors
- Steel mill roller positioning mechanisms
- Industrial press straightening devices
- Air filtration: 40μm minimum
- Relubrication interval: 2,000km stroke (if lubricated air used)
- Rod seal replacement cycle: 5 million cycles (standard conditions)
| Property | Property Value |
|---|---|
| sku | SI125AX425S |
| 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 | <425mm> |
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.









