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 SI125X20S Standard Cylinder Specifications
- Model: SI125X20S
- Type: Single-acting spring return pneumatic cylinder
- Bore size: Ø125 mm
- Stroke: 20 mm
- Operating pressure: 0.1-0.9 MPa
- Operating temperature: -20℃ to 80℃
- Cushion type: Adjustable air cushion (both ends)
- Port size: G1/2 (ISO228/1 standard)
- Mounting style: Basic type (MF1) with front flange
- Piston rod material: Chrome-plated carbon steel
- Tube material: Anodized aluminum alloy
- Seal material: NBR (Nitrile rubber)
- Weight: 3.5 kg (without accessories)
- Dimensions:
- Length: 195 mm (full retracted)
- Width: 145 mm (mounting flange to rod end)
- Height: 145 mm (cylinder diameter + mounting base)
A heavy-duty compact cylinder designed for high thrust requirements in constrained spaces. Features corrosion-resistant construction with double-acting cushioning for smooth operation. The magnetic piston version (SI125X20S-M9) enables position sensing compatibility. Requires ISO 8573-1:2010 Class 3 lubricated or non-lubricated air.
- Press machine clamping mechanisms
- Automated material handling systems
- Plastic injection molding ejectors
- Textile machinery tension control
- Foundry equipment actuation
| Property | Property Value |
|---|---|
| sku | SI125X20S |
| 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 | <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.









