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 SI125BX145 Standard Cylinder Specifications
- Model: SI125BX145
- Type: ISO 15552 compliant double-acting pneumatic cylinder
- Bore size: 125mm
- Stroke: 145mm (customizable up to 2000mm)
- Operating pressure: 0.1–0.9 MPa
- Cushioning: Adjustable pneumatic cushion (both ends)
- Mounting style: Standard ISO flange (alternative: foot/bracket)
- Port size: G1/2 (NPT1/2 optional)
- Piston rod material: Hard chrome-plated steel
- Tube material: Anodized aluminum alloy
- Seal material: NBR/PU (optional FKM for high temp)
- Temperature range: -20℃ to 80℃ (-40℃~120℃ with special seals)
- Weight: 12.8kg (excluding accessories)
- Dimensions: 416mm(L) × 160mm(W) × 160mm(H) (retracted length)
- Rod thread: M24×1.5
- Protection rating: IP54 (standard), IP67 optional
- Lubrication: Pre-lubricated (recommended oil viscosity: ISO VG32)
High-torque industrial cylinder with precision-bored tube for smooth operation under heavy loads. Features wear-resistant guide bushings and dual anti-rotation slots for enhanced lateral load capacity. The SI125BX145's oversized piston rod (35mm diameter) ensures stability in high-moment applications. Requires 40μm filtered air with ≤5% relative humidity.
- Metal stamping press ejection systems
- Automotive welding fixture positioning
- Injection molding machine core pulls
- Heavy-duty material handling gates
- Paper mill roller positioning
| Property | Property Value |
|---|---|
| sku | SI125BX145 |
| 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 | SUS304 |
| Magnet | Non-magnetic |
| Bore Diameter | 125mm |
| Stroke | 145mm |
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.









