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 SI125BX550 Standard Cylinder Specifications
- Model: SI125BX550
- Type: Double-acting pneumatic cylinder (ISO 15552 standard)
- Bore size: 125 mm
- Stroke: 550 mm (adjustable cushion)
- Operating pressure: 0.05–1.0 MPa
- Operating temperature: -20℃ to 80℃
- Cushion type: Adjustable pneumatic cushion at both ends
- Port size: G1/2 (ISO 1179-1 standard)
- Piston rod thread: M24×1.5
- Mounting style: Basic type (standard front flange)
- Cylinder tube material: Aluminum alloy with hard anodized surface
- Piston rod material: Chrome-plated carbon steel (HRA≥70)
- Seal material: NBR (nitrile rubber) with wear-resistant ring
- Lubrication: Pre-lubricated (optional oil-free operation)
- Protection rating: IP65 (standard wiper seal)
- Weight: 15.8 kg (including mounting accessories)
- Dimensions: 750mm(L) × 180mm(W) × 180mm(H) (full extension)
- Theoretical thrust: 7,350N @ 0.6MPa (extend side)
High-load industrial cylinder designed for heavy-duty automation systems. Features corrosion-resistant construction with precision honed inner tube and multi-layered sealing system. The magnetic version (optional) supports position feedback via sensors. Requires 40μm filtered air and recommended 1-2 drops of ISO VG32 oil per cycle for optimal lubrication.
- Press machine clamping mechanisms
- Injection molding machine ejectors
- Automotive welding fixture positioning
- Heavy material handling systems
- Packaging line palletizing arms
| Property | Property Value |
|---|---|
| sku | SI125BX550 |
| 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 | 550mm |
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.









