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 SI125X205SN Standard Cylinder Specifications
- Model: SI125X205SN
- Type: Double-acting pneumatic cylinder
- Bore size: 125mm (ISO 6432 standard)
- Stroke: 205mm (±1mm tolerance)
- Operating pressure: 0.05–1.0 MPa
- Piston speed: 50–800 mm/s (cushioned)
- Port size: G1/2 (BSPP thread)
- Piston rod material: Chrome-plated 45# steel
- Cylinder tube: Aluminum alloy (hard anodized)
- Seal material: NBR + Polyurethane combination
- Temperature range: -20℃ to 80℃
- Buffer type: Adjustable air cushion (both ends)
- Mounting style: SN series front flange (ISO 15552 compliant)
- Weight: 9.8kg (dry, without accessories)
- Dimensions:
- Extended length: 548mm (stroke + base length)
- Body diameter: 136mm (outer tube dimension)
- Mounting flange: 200×200mm (square pattern)
High-torque industrial cylinder designed for heavy-duty linear motion applications. Features triple sealing system (rod seal, piston seal, and wiper) with integrated magnet for position sensing compatibility. The anodized surface treatment provides corrosion resistance in humid environments. Requires ISO 8573-1:2010 [4:4:3] class compressed air.
- Press machine ejection systems
- Automotive welding fixture positioning
- Steel coil handling equipment
- Plastic injection molding machine gates
- Shipbuilding jig actuators
| Property | Property Value |
|---|---|
| sku | SI125X205SN |
| 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 | 205mm |
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.









