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 SI125X900S Standard Cylinder Specifications
- Model: SI125X900S
- Bore size: 125mm
- Stroke: 900mm
- Operating pressure: 0.15–1.0 MPa
- Cushion type: Adjustable air cushion (both ends)
- Port size: G3/8 (ISO standard)
- Piston rod material: Chrome-plated carbon steel (S45C)
- Cylinder tube material: Aluminum alloy (hard anodized)
- Seal material: Nitrile rubber (NBR) with wear-resistant ring
- Operating temperature: -20℃ to 80℃
- Weight: 23.5kg (excluding mounting accessories)
- Dimensions: 1138mm(L) × 155mm(W) × 155mm(H)
- Action type: Double-acting
- ISO standard: ISO 15552 (previously ISO 6431)
- Mounting style: Basic type (MF1: front flange)
- Maximum speed: 500-800mm/s (with cushion)
- Lubrication: Pre-lubricated (oil-free operation possible)
High-torque industrial cylinder designed for heavy-duty linear motion applications. Features enhanced rod bearing design for reduced lateral load wear and integrated cushioning adjustment screws with locknuts. Optional magnetic piston version (SI125MX900S) available for position sensing.
- Press machine ejection systems
- Automotive welding fixture positioning
- Steel coil handling equipment
- Plastic injection molding machine core pull
- Paper roll lifting mechanisms
| Property | Property Value |
|---|---|
| sku | SI125X900S |
| 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 | <900mm> |
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.









