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 SI125X120S Standard Cylinder Specifications
- Model: SI125X120S
- Bore size: 125mm
- Stroke: 120mm
- Operating pressure: 0.15–0.8 MPa
- Cushion type: Rubber buffer (adjustable optional)
- Port size: G1/2 (ISO 228/1 standard)
- Mounting type: ISO 15552 compliant (front flange/rear foot/axial mount)
- Piston rod material: Chrome-plated steel (S45C)
- Cylinder tube: Hard anodized aluminum alloy
- Seal material: NBR (nitrile butadiene rubber)
- Temperature range: -20℃ to 80℃
- Weight: 3.8kg (without accessories)
- Dimensions: 305mm(L) × 125mm(W) × 125mm(H) (retracted length)
- Rod end thread: M20×1.5 (male)
- Max theoretical thrust: 6,132N @0.6MPa
- Air consumption: 1.45L/stroke @0.6MPa
A heavy-duty ISO cylinder optimized for industrial automation, featuring precision honed tubing and triple-lip rod seals for leak-free operation. The 125mm bore delivers exceptional force output while maintaining smooth motion through optimized air flow channels. Includes magnetic piston for position sensing compatibility.
- Press machine ejection systems
- Automotive assembly line clamping
- Foundry mold handling equipment
- Packaging line pusher mechanisms
- Plastic injection molding machine gates
| Property | Property Value |
|---|---|
| sku | SI125X120S |
| 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 | 120mm |
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.









