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 SI125X445 Standard Cylinder Specifications
- Model: SI125X445
- Bore size: Ø125 mm
- Stroke: 445 mm
- Operating pressure: 0.05–1.0 MPa
- Cushioning type: Adjustable air cushion (both ends)
- Port size: Rc1/2 (G1/2 optional)
- Piston speed: 50–700 mm/s
- Ambient temperature: -20℃ to 80℃
- Mounting type: Basic (MF1) with multiple accessory options
- Rod material: Hard chrome-plated carbon steel
- Seal material: NBR + PU combination
- Weight: 14.8 kg (bare cylinder) / 16.3 kg (with standard accessories)
- Dimensions:
- Extended length: 805 mm
- Retracted length: 360 mm
- Body diameter: Ø136 mm
- Mounting base: 165×165 mm square pattern
- ISO standard: 15552 compliant
- Protection rating: IP65 (with wiper seal)
High-thrust industrial cylinder designed for heavy-duty automation applications. Features precision-machined aluminum barrel with wear-resistant coating and dual anti-rotation guide rods (optional). The integrated magnet piston supports position sensing compatibility. Requires ISO VG32 hydraulic oil lubrication for optimal performance in continuous operation.
- Automotive press line material handling
- Steel mill door actuators
- Plastic injection molding ejectors
- Warehouse vertical lift systems
- Shipbuilding fixture positioning
| Property | Property Value |
|---|---|
| sku | SI125X445 |
| 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 | 445mm |
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.









