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 SI125X540S Standard Cylinder Technical Specifications
- Model: SI125X540S
- Bore size: 125mm
- Stroke: 540mm
- Operating pressure: 0.15-1.0 MPa
- Cushion type: Adjustable air cushion (both ends)
- Piston speed: 50-1000 mm/s
- Ambient temperature: -20℃ to 80℃
- Port size: G1/2 (ISO228/1 standard)
- Rod thread: M30×1.5 (external)
- Material:
- Cylinder tube: Aluminum alloy (hard anodized)
- Piston rod: Chrome-plated carbon steel (Cr-Mo)
- Seals: NBR (nitrile rubber)
- Weight: 16.8 kg (±3%)
- Dimensions:
- Extended length: 891mm
- Retracted length: 351mm
- Mounting center distance: 190mm
- Body diameter: 140mm (with end caps)
- ISO standard: 15552 compliant
- Repeat positioning accuracy: ±0.5mm
High-torque industrial cylinder designed for heavy-duty linear motion applications. Features dual-piston seals with integrated wiper ring for contamination resistance. The corrosion-resistant construction enables operation in humid environments. Requires ISO 8573-1:2010 [4:4:3] class compressed air.
- Press machine ejection systems
- Automotive welding fixture positioning
- Foundry equipment door actuators
- Plastic injection molding clamp units
- Heavy conveyor gate controls
| Property | Property Value |
|---|---|
| sku | SI125X540S |
| 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 | 540mm |
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.









