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 SI125X402SN Standard Cylinder Specifications
- Model: SI125X402SN
- Type: ISO 15552 compliant double-acting cylinder
- Bore size: 125 mm
- Stroke: 402 mm
- Operating pressure: 0.1-1.0 MPa (15-145 PSI)
- Cushioning: Adjustable pneumatic cushion (both ends)
- Port size: PT1/2 (G1/2 optional)
- Piston rod material: Chrome-plated carbon steel (DIN2391)
- Tube material: Anodized aluminum alloy
- Seal material: Nitrile rubber (NBR) standard
- Temperature range: -20℃ to +80℃
- Magnetic sensor compatibility: Built-in T-slot for PFD2/PFV2 series sensors
- Mounting type: ISO 15552 mounting accessories compatible (VA/MB/MP series)
- Weight: 14.2 kg (without accessories)
- Dimensions (L×W×H): 600×140×140 mm (total length with cushions)
- Protection rating: IP65 (rod gland area)
- Lubrication: Pre-lubricated (non-replenishing design)
High-force industrial cylinder designed for heavy-duty automation applications. Features corrosion-resistant construction with precision honed tube and double-sealed rod gland. The SI125X402SN combines 2.5mm thick anodized barrel with oversized piston bearings for minimal side load wear. Requires filtered air (5-50μm) with 1-10 mg/m³ oil mist content.
- Metal stamping press ejection systems
- Automotive welding fixture positioning
- Plastic injection molding machine clamp units
- Heavy material handling gates/doors
- Paper mill roller compression mechanisms
| Property | Property Value |
|---|---|
| sku | SI125X402SN |
| Seal Material | NBR |
| 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 | 402mm |
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.







