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 SI125AX125S Standard Cylinder Specifications
- Model: SI125AX125S
- Type: ISO 15552 compliant double-acting pneumatic cylinder
- Bore size: 125 mm
- Stroke: 125 mm (customizable 25-500 mm)
- Operating pressure: 0.1-0.9 MPa
- Cushion type: Adjustable pneumatic cushion (both ends)
- Mounting style: Basic type (MF1) with optional foot/mounting flange
- Piston rod material: Hard chrome-plated steel (S45C)
- Cylinder tube: Anodized aluminum alloy
- Seal material: High-grade NBR + Polyurethane
- Port size: G3/8 (ISO 228 standard)
- Ambient temperature: -20℃ to 80℃
- Piston speed: 50-750 mm/s
- Weight: 7.8 kg (bare cylinder without accessories)
- Dimensions:
- Body length: 315 mm (base model)
- Extended length: 440 mm (stroke included)
- Width: 148 mm (mounting face)
- Height: 148 mm (square profile)
- ISO standard: 6432/15552 (interchangeable)
High-torque industrial cylinder designed for heavy-duty automation applications. Features wear-resistant chromium plating and multi-layered sealing system with 5 million cycle durability rating. Optional magnetic piston (SI125AX125S-M) enables position feedback when paired with sensors.
- Automotive assembly line clamping systems
- Injection molding machine ejection mechanisms
- Steel mill material handling actuators
- Packaging machine heavy door operators
- Press machine power units
- Use M12x1.75 mounting bolts (grade 8.8 or higher)
- Maintain 0.5-1mm alignment tolerance during mounting
- Pre-lubricated - do not disassemble seals during initial installation
- Recommended maintenance: Relubricate every 3,000 km of cumulative stroke
| Property | Property Value |
|---|---|
| sku | SI125AX125S |
| 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 | SUS420J2 |
| Magnet | S-Magnetic |
| Bore Diameter | 125mm |
| Stroke | 125mm |
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.









