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 SI125X520 Standard Cylinder Technical Details
- Model: SI125X520
- Bore size: Ø125mm
- Stroke: 520mm
- Action type: Double-acting
- Operating pressure: 0.05–1.0 MPa
- Piston speed: 50–800 mm/s
- Cushioning: Adjustable air cushion (both ends)
- Port size: G1/2 (ISO standard)
- Mounting style: Basic type (Standardized mounting holes with front flange/rear foot options)
- Rod material: Chrome-plated carbon steel (S45C)
- Cylinder tube: Anodized aluminum alloy
- Seal material: NBR (Nitrile Butadiene Rubber)
- Ambient temperature: -20℃ to +80℃
- Weight: 13.8 kg (with rod extension)
- Dimensions:
- Total length: 870mm (stroke 520 + 350mm body)
- Body diameter: Ø140mm (external tube dimension)
- Mounting base: 180mm × 180mm (front flange pattern)
- Rod thread: M30×1.5 (external)
High-force industrial cylinder designed for heavy-duty linear motion applications. Features precision honed tubing with wear-resistant piston guides, optimized for continuous operation in harsh environments. Requires 40μm filtered air with recommended ISO VG32 hydraulic oil mist lubrication (non-lube version available).
- Metal stamping press ejection systems
- Automotive welding fixture positioning
- Packaging machinery compression units
- Foundry equipment door actuators
- Plastic injection molding clamp mechanisms
| Property | Property Value |
|---|---|
| sku | SI125X520 |
| 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 | Medium Carbon Steel |
| Magnet | Non-magnetic |
| Bore Diameter | 125mm |
| Stroke | 520mm |
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.









