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 SI125X205 Standard Cylinder Specifications
- Model: SI125X205
- Type: ISO 15552 compliant double-acting cylinder
- Bore size: 125 mm
- Stroke: 205 mm (±1.5mm tolerance)
- Operating pressure: 0.05–1.0 MPa
- Cushioning type: Adjustable air cushion (both ends)
- Mounting style: Standard ISO mounting (optional flange/foot)
- Port size: G3/8 (BSPP thread)
- Piston speed: 50–800 mm/s
- Operating temperature: -20℃ to 80℃
- Seal material: Nitrile rubber (NBR) with wear-resistant ring
- Rod material: Hard chrome-plated steel (HCP)
- Tube material: Anodized aluminum alloy
- Weight: 7.8 kg (excluding accessories)
- Dimensions:
- Extended length: 635 mm
- Retracted length: 430 mm
- Body diameter: 140 mm
- Rod end thread: M20×1.5
- Protection rating: IP65 (standard wiper seal)
High-torque industrial cylinder with 30% increased load capacity compared to ISO 6432 standard models. Features corrosion-resistant construction with double lip seals for contaminated environments. Optional magnetic piston version (SI125X205-M9) available for position sensing. Requires ISO VG32 hydraulic oil lubrication if used in high-cycle applications (>1,000,000 cycles).
- Automotive production line clamping fixtures
- Steel mill rolling equipment actuation
- Plastic injection molding machine ejectors
- Heavy-duty material handling systems
- Paper processing machinery
| Property | Property Value |
|---|---|
| sku | SI125X205 |
| 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 | 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.









