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 SI125X370 Standard Cylinder Specifications
- Model: SI125X370
- Type: ISO 15552 compliant double-acting pneumatic cylinder
- Bore size: 125 mm
- Stroke: 370 mm (±1.5mm tolerance)
- Operating pressure: 0.1–0.9 MPa (1–9 bar)
- Cushioning: Air cushion (adjustable)
- Mounting types: Front flange (MF1), rear flange (MF2), foot mounting (MP5), trunnion (MT4)
- Port size: G3/8 (ISO 228 standard)
- Piston rod material: Hard chrome-plated 45# steel
- Tube material: Aluminum alloy with hard anodized surface
- Seal material: NBR (Nitrile rubber) with wear-resistant ring
- Ambient temperature: -20℃ to 80℃
- Weight: 15.8 kg (without accessories)
- Dimensions (L×W×H):
- Basic length: 497 mm
- Full extended length: 497 + 370 = 867 mm
- Body diameter: 142 mm (outer Ø)
- Rod end thread: M30×2.0
- Max theoretical force (@6 bar):
- Extension: 7,358 N
- Retraction: 6,615 N
Heavy-duty industrial cylinder with ISO mounting compatibility, featuring corrosion-resistant construction and precision honed tube. Integrated magnet slot (optional) enables position sensing. The triple sealing system ensures ≤1.5 Nl/min leakage at 0.6 MPa. Requires 40μm filtered air with 1-3 drops of ISO VG32 oil per m³.
- Automotive production line clamping fixtures
- Steel mill material handling systems
- Plastic injection molding machine ejectors
- Paper processing equipment actuators
- Heavy-duty lifting platforms
| Property | Property Value |
|---|---|
| sku | SI125X370 |
| 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 | Non-magnetic |
| Bore Diameter | 125mm |
| Stroke | 370mm |
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.









