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 SI125BX55 Standard Cylinder Technical Specifications
- Model: SI125BX55
- Type: ISO 6432 compliant double-acting cylinder
- Bore size: 125 mm
- Stroke: 55 mm (customizable 25-500mm)
- Operating pressure: 0.05-1.0 MPa
- Temperature range: -20℃ to 80℃
- Cushioning: Adjustable pneumatic cushion (both ends)
- Port size: G1/2 (BSPP thread)
- Mounting: Basic rear clevis (optional ISO/VDMA mounts)
- Piston rod material: Hard chrome-plated steel (Cr-Mo alloy)
- Tube material: Anodized aluminum alloy
- Seal material: High-grade NBR + PU combination
- Weight: 5.8 kg (with standard accessories)
- Dimensions:
- Extended length: 330 mm
- Retracted length: 275 mm
- Body diameter: 140 mm
- Mounting hole spacing: 160×160 mm
A heavy-duty industrial cylinder featuring triple sealing technology for leak-proof operation in contaminated environments. The oversized piston rod (φ35mm) provides exceptional buckling resistance, while the multi-layered wear band ensures smooth operation over 3,000km service life. Requires ISO 8573-1 class 3 lubricated air (ISO VG32 recommended).
- Metal stamping press ejection systems
- Automotive welding fixture clamping
- Paper roll handling in converting machinery
- Plastic injection molding machine core pulls
- Heavy conveyor gate actuation
| Property | Property Value |
|---|---|
| sku | SI125BX55 |
| 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 | 55mm |
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.







