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 SI125X450 Standard Cylinder Specifications
- Model: SI125X450
- Bore size: 125 mm
- Stroke: 450 mm
- Operating pressure: 0.05–1.0 MPa
- Cushion type: Adjustable air cushion (both ends)
- Port size: G3/8 (ISO standard)
- Piston speed: 50–800 mm/s
- Ambient temperature: -20℃ to 80℃
- Mounting type: Basic (standard) / MF1/MF2 flange / MP4 trunnion options
- Cylinder tube material: Aluminum alloy (hard anodized)
- Piston rod material: Chrome-plated steel (S45C)
- Seal material: NBR + Polyurethane (wear-resistant)
- Weight: 9.8 kg (without accessories)
- Dimensions:
- Total length: 697 mm (stroke 450 + 247mm end covers)
- Body diameter: 144 mm
- Mounting hole spacing: 165×165 mm (MF2 pattern)
- Rod end thread: M33×1.5
High-power industrial cylinder with large bore design, featuring precision-machined aluminum construction and triple sealing system. Optimized for heavy load applications requiring smooth linear motion and position stability. Includes magnetic piston for sensor compatibility (SI-M series variant available).
- Automated material handling systems (palletizers/conveyors)
- Press machinery for metal forming operations
- Plastic injection molding ejection mechanisms
- Automotive assembly line clamping fixtures
- Paper processing equipment tension control
- Use alignment jigs during mounting to prevent rod side-load
- Maintain 0.1–0.3 MPa lubrication pressure for optimal seal life
- Allow 25mm clearance for cushion adjustment screws
- For vertical mounting, install air breather on upper port
| Property | Property Value |
|---|---|
| sku | SI125X450 |
| 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 | 450mm |
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.









