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 SI125X312SN Standard Cylinder Specifications
- Model: SI125X312SN
- Type: ISO 15552 compliant double-acting cylinder
- Bore size: 125 mm
- Stroke: 312 mm (customizable 25-1000mm)
- Operating pressure: 0.05–1.0 MPa
- Operating temperature: -20℃ to 80℃
- Cushioning: Adjustable pneumatic cushion (both ends)
- Mounting style: Front/rear flange (ISO 15552 MF1/MF2) or foot mounting
- Port size: G1/2 (ISO 228/1 standard)
- Piston rod thread: M30×2 external thread
- Sensor type: Built-in magnet for proximity switches (PNP/NPN configurable)
- Material: Aluminum alloy barrel, chrome-plated steel rod
- Seal material: NBR (Nitrile) standard, optional FKM/Viton
- Weight: 8.5 kg ±3% (without accessories)
- Dimensions:
- Total length: 576 mm (stroke 312 + end caps)
- Barrel outer diameter: 142 mm
- Mounting center distance: 160 mm (front flange)
- Rod end height: 28 mm above centerline
High-force industrial cylinder with ISO-standard mounting patterns, featuring wear-resistant chromium plating and precision honed tube. The SN variant includes integrated magnetic field for position feedback. Optimized for heavy-duty cycles with 2 million meter service life (under 0.5 MPa). Requires ISO VG32 hydraulic oil mist lubrication for optimal performance.
- Automotive production line clamping fixtures
- Press machine ejection systems
- Foundry equipment metal casting handling
- Plastic injection molding machine core pulls
- Palletizing robot end effectors
| Property | Property Value |
|---|---|
| sku | SI125X312SN |
| 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 | Non-magnetic |
| Bore Diameter | 125mm |
| Stroke | 312mm |
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.









