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 SI125BX140S Standard Cylinder Specifications
- Model: SI125BX140S
- Type: ISO 15552 compliant double-acting cylinder
- Bore size: 125mm
- Stroke: 140mm (±1.5mm tolerance)
- Operating pressure: 0.05-1.0 MPa
- Cushion type: Adjustable pneumatic cushion (both ends)
- Port size: G3/8 (ISO 228-1 standard)
- Piston rod thread: M30×2 external thread
- Mounting style: Basic type (multiple mounting options via accessory kits)
- Temperature range: -20℃ to 80℃ (with NBR seals)
- Tube material: Aluminum alloy (AlSi10Mg) with hard anodized surface
- Seal material: NBR/PU compound (wear-resistant version)
- Weight: ~3.5kg (without accessories)
- Dimensions:
- Total length: 340mm (at mid-stroke position)
- Body diameter: 136mm (max OD with cushion screws)
- Mounting center spacing: 160mm (front flange)
- Rod end protrusion: 45mm (from front face)
High-force industrial cylinder featuring precision honed tube and triple-lip rod seal design. The SI125BX140S combines 3-stage position detection slots (optional magnetic sensor integration) with impact-absorbing cushioning adjustment screws. Its anti-rotation piston rod and chromium-plated surface (5-8μm thickness) ensure stable linear motion in heavy-duty applications.
- Automotive press line material handling systems
- Foundry equipment core shooting machines
- Plastic injection molding ejector mechanisms
- Steel coil lifting/pressing in metal forming
- Paper roll positioning in converting machinery
| Property | Property Value |
|---|---|
| sku | SI125BX140S |
| 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 | <140mm> |
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.









