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 SI125BX30 Standard Cylinder Specifications
- Model: SI125BX30
- Type: ISO 15552 compliant double-acting cylinder
- Bore size: 125mm
- Stroke: 30mm (customizable up to 1,000mm)
- Operating pressure: 0.15–0.8 MPa
- Cushioning: Adjustable pneumatic cushion at both ends
- Port size: G1/2 (NPT1/2 optional)
- Piston rod material: Hard chrome-plated steel (HCP)
- Tube material: Anodized aluminum alloy
- Seal material: NBR (Nitrile) standard, optional FKM/Viton
- Ambient temperature: -20℃ to 80℃
- Weight: 6.2kg (excluding accessories)
- Dimensions: 300mm(L) × 125mm(W) × 125mm(H)
- Mounting options: Basic type (MF1), front flange (MF2), rear clevis (MF4)
- ISO standard: 15552 (formerly ISO 6431)
- Piston speed: 50–800mm/s
- Protection rating: IP65 (rod seal area)
High-force industrial cylinder designed for heavy-duty applications requiring precise linear motion. Features corrosion-resistant construction with precision honed inner tube for smooth operation. Integrated magnet slot (optional SI-M125 magnet) enables position sensing. Requires 40μm filtered lubricated air (ISO 8573-1 class 4).
- Automotive assembly line clamping systems
- Press machine ejection mechanisms
- Foundry equipment actuation
- Heavy material handling gates
- Plastic injection molding machines
| Property | Property Value |
|---|---|
| sku | SI125BX30 |
| 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 | 30mm |
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.









