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 SI125X20 Standard Cylinder Specifications
- Model: SI125X20
- Bore size: 125 mm
- Stroke: 20 mm
- Operating pressure: 0.05–1.0 MPa
- Medium temperature: -20℃ to 80℃
- Cushioning type: Adjustable pneumatic cushion (both ends)
- Action mode: Double-acting
- Mounting style: Basic type (MF1), with optional foot/mounting flange
- Port size: Rc1/4 (G1/4 optional)
- Barrel material: Aluminum alloy with hard anodized surface
- Piston rod material: Chrome-plated carbon steel (Cr-Mo)
- Seal material: NBR (nitrile rubber)
- Weight: 3.8 kg (excluding accessories)
- Dimensions (L×W×H): 231mm × 125mm × 125mm (total length at mid-stroke)
- Max theoretical thrust: 1,227N @0.5MPa
- Piston speed: 50–700 mm/s
- ISO standard: ISO 6432 compliance
A heavy-duty industrial cylinder featuring reinforced end caps and anti-rotation piston rod design. The chromium-plated rod surface reduces wear, while the double-sealing structure ensures leak-proof operation. Optimized air consumption with 15% lower friction coefficient compared to previous generations. Requires 5μm filtered lubricated air (ISO 8573-1 class 4).
- Automotive assembly line clamping fixtures
- Plastic injection molding machine ejectors
- Heavy conveyor gate actuators
- Industrial press feeding mechanisms
- Packaging machine compression units
| Property | Property Value |
|---|---|
| sku | SI125X20 |
| 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 | <20mm> |
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.









