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 SI125X1650S Standard Cylinder Specifications
- Model: SI125X1650S
- Type: ISO 15552 compliant double-acting cylinder
- Bore size: 125 mm
- Stroke length: 1650 mm
- Operating pressure: 0.05–1.0 MPa
- Cushioning type: Adjustable pneumatic cushion (both ends)
- Piston rod material: Chrome-plated steel (Cr-Mo alloy)
- Tube material: Anodized aluminum alloy
- Seal material: NBR (nitrile rubber) with wear-resistant ring
- Port size: G1/2 (ISO 228/1 standard)
- Temperature range: -20℃ to 80℃
- Max theoretical thrust: 1,539 N @ 0.63 MPa
- Weight: 12.8 kg (excluding mounting accessories)
- Dimensions: 1790mm(L) × 180mm(W) × 155mm(H) (full extension)
- Mounting options: Front flange (MF1), rear pivot (MP4), or foot mounting (MA)
- Rod end thread: M30×2.0 (male)
- Protection rating: IP40 (standard), IP67 available with optional wiper
- Lubrication: Pre-lubricated (oil-free operation possible)
High-load industrial cylinder designed for long-stroke applications requiring precise linear motion. Features precision honed tube and triple sealing system (rod seal, buffer seal, and piston seal) for leak-proof operation. The corrosion-resistant construction enables use in humid environments. Requires 5μm filtered air with ≤5% relative humidity for optimal performance.
- Automotive assembly line clamping systems
- Foundry equipment for mold handling
- Paper mill roller positioning mechanisms
- Large-scale packaging machine actuators
- Steel plant material transfer systems
| Property | Property Value |
|---|---|
| sku | SI125X1650S |
| 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 | S-Magnetic |
| Bore Diameter | 125mm |
| Stroke | 1650mm |
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.









