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 SI125BX55S Standard Cylinder Specifications
- Model: SI125BX55S
- Type: ISO 15552 compliant double-acting cylinder
- Bore size: 125mm
- Stroke: 55mm
- Structure: Piston type with magnetic ring (for sensor attachment)
- Operating pressure: 0.1-1.0 MPa
- Cushioning: Adjustable pneumatic cushion at both ends
- Port size: G1/2 (ISO 228/1 standard)
- Piston rod material: Chrome-plated steel (hardness HRC 45-55)
- Tube material: Anodized aluminum alloy (6063-T5)
- Seal material: NBR (nitrile rubber) with wear-resistant ring
- Ambient temperature: -20℃ to +80℃
- Weight: 4.8kg (excluding mounting accessories)
- Dimensions (L×W×H): 310mm × 145mm × 145mm (basic type, stroke 55mm)
- Rod end thread: M20×1.5 (external)
- Mounting: Standard ISO 15552 mounting interfaces (front flange, rear foot, etc.)
- Protection class: IP65 (with wiper seal)
- Piston speed: 50-750 mm/s (optimal range)
High-load industrial cylinder designed for precision linear motion applications. Features dual anti-rotation guide mechanism and precision honed inner bore for smooth operation. The aluminum alloy construction provides excellent heat dissipation, while the multi-layered sealing system ensures leak-free performance even under frequent reciprocation.
- Automated assembly line clamping devices
- Plastic injection molding machine ejectors
- Automotive welding fixture positioning
- Heavy-duty material handling systems
- Packaging machine product pushers
- Paper processing equipment actuators
| Property | Property Value |
|---|---|
| sku | SI125BX55S |
| 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 | S-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.







