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 SI125BX185 Standard Cylinder Specifications
- Model: SI125BX185
- Type: ISO 15552 compliant double-acting cylinder
- Bore size: 125mm
- Stroke: 185mm (±1.5mm tolerance)
- Operating pressure: 0.15–1.0 MPa
- Cushioning: Adjustable pneumatic cushion (both ends)
- Port size: G1/2 (alternative NPT3/4 available)
- Piston speed: 50–800 mm/s (optimal range)
- Ambient temperature: -20℃ to 80℃
- Mounting: Standard ISO 15552 mounting interfaces (front flange, rear foot)
- Rod material: Hard chrome-plated steel (5μm coating)
- Tube material: Anodized aluminum alloy
- Seal material: NBR (nitrile rubber)
- Weight: 3.8kg (excluding accessories)
- Dimensions:
- Extended length: 435mm (stroke + base length)
- Retracted length: 250mm
- Body diameter: 136mm (max OD)
- Rod end thread: M20×1.5 (male)
High-force industrial cylinder designed for heavy-duty automation applications. Features corrosion-resistant construction with IP65 protection rating and built-in magnetic field for position sensing (optional). Requires 40μm filtered air with ISO 8573-1:2010 Class 3.4.3 air quality. Lubricated for life using ISO VG32 hydraulic oil compatible grease.
- Automotive production line clamping systems
- Steel mill material handling actuators
- Plastic injection molding machine ejectors
- Warehouse automated stacking units
- Hydraulic press auxiliary positioning
| Property | Property Value |
|---|---|
| sku | SI125BX185 |
| 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 | 185mm |
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.









