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 SI125X140SN Standard Cylinder Specifications
- Model: SI125X140SN
- Type: ISO 15552 compliant double-acting pneumatic cylinder
- Bore size: 125 mm
- Stroke: 140 mm (±0.5mm tolerance)
- Operating pressure: 0.15–0.8 MPa (21.7–116 psi)
- Temperature range: -20℃ to 80℃ (-4°F to 176°F)
- Cushioning: Adjustable air cushion at both ends
- Mounting style: Basic (Foot) mounting with ISO 15552 mounting pattern
- Port size: G1/2 (ISO 228 standard)
- Piston rod thread: M30x1.5 (standard) or M30x2 (optional)
- Seal material: Nitrile Butadiene Rubber (NBR) with wear-resistant ring
- Protection rating: IP65 (dust-tight & protected against water jets)
- Weight: 12.3 kg (27.1 lbs) ±3%
- Dimensions:
- Total length: 332 mm (stroke + 192mm end-to-end)
- Body diameter: 140 mm (cylindrical envelope)
- Mounting base: 200mm x 150mm with 12mm mounting holes
High-force industrial cylinder designed for heavy-duty applications requiring precise linear motion. Features chrome-plated piston rod (HRC45-50 hardness) and aluminum alloy end caps with anodized surface treatment. Includes magnetic piston for position sensing compatibility (sensor not included). Operates at speeds up to 1.0 m/s with proper cushioning adjustment.
- Material handling systems in automotive assembly lines
- Press machine clamping mechanisms
- Plastic injection molding machine ejectors
- Steel mill roller positioning systems
- Packaging equipment compression units
- Use locknuts with 80-100 N·m torque for rod-end connections
- Maintain 0.5-1.0 mm clearance between cylinder and guide rails
- Lubricate with ISO VG32 hydraulic oil if using non-lubricated air
- Maximum side load: 850 N at mid-stroke
- Maximum kinetic energy: 5.8 J (requires external shock absorber if exceeded)
- Cycle rate: ≤ 300 cycles/minute (dependent on cushioning setting)
| Property | Property Value |
|---|---|
| sku | SI125X140SN |
| Seal Material | NBR |
| 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 | <140mm> |
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.









