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 SI125X400N Standard Cylinder Specifications
- Model: SI125X400N
- Bore diameter: 125mm
- Stroke: 400mm
- Operating pressure: 0.1–0.9 MPa
- Medium temperature: -20℃ to 80℃
- Cushion type: Adjustable air cushion (both ends)
- Mounting style: Basic type (MF1), optional foot mounting (MP4), flange mounting (MF2/MF4)
- Port size: G3/8 (NPT1/2 optional)
- Piston rod material: Chrome-plated steel (S45C)
- Tube material: Aluminum alloy (hard anodized)
- Seal material: NBR (nitrile rubber)
- Weight: 21.5kg ±2%
- Dimensions: 638mm(L) × 158mm(W) × 158mm(H)
- ISO standard: 6432 (125mm bore series)
- Protection rating: IP65 (dust-tight & water jet resistant)
- Sensor compatibility: Built-in magnet for magnetic switches (D-A93 series)
High-thrust industrial cylinder designed for heavy-duty linear motion applications. Features double-acting operation with precision-machined aluminum barrel and corrosion-resistant plating. The dual adjustable cushions minimize impact at stroke ends, while the 3-layer sealing system ensures leak-free performance even under continuous cycling. Requires ISO 8573-1:2010 Class 3 lubricated air (40μm filtration).
- Metal stamping press ejection systems
- Automotive assembly line clamping devices
- Injection molding machine core pull mechanisms
- Steel mill conveyor gate actuators
- Paper processing equipment rollers
| Property | Property Value |
|---|---|
| sku | SI125X400N |
| Seal Material | NBR |
| 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 | Medium Carbon Steel |
| Magnet | Non-magnetic |
| Bore Diameter | 125mm |
| Stroke | <400mm> |
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.









