Airtac SI125 Standard Cylinder SI125X820S
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 SI125X820S Standard Cylinder Specifications
- Model: SI125X820S
- Bore size: 125 mm
- Stroke: 820 mm
- Operating pressure: 0.15–1.0 MPa
- Cushion type: Fixed air cushion (adjustable optional)
- Temperature range: -20℃ to 80℃
- Port size: G1/2 (ISO standard)
- Mounting style: Basic type (MF1) with optional foot/mounting accessories
- Cylinder material: Aluminum alloy tube, hardened piston rod (Cr-Mo steel)
- Seal material: NBR (Nitrile rubber) standard
- Piston speed: 50–800 mm/s (lubricated)
- Protection rating: IP65 (dust-proof & water-resistant)
- Weight: 13.8 kg (without accessories)
- Dimensions:
- Extended length: 1,138 mm
- Retracted length: 318 mm
- Body diameter: 144 mm
- Mounting hole spacing: 175×175 mm
High-force industrial cylinder designed for heavy-duty linear motion applications. Features double-acting operation with chrome-plated piston rod for corrosion resistance. The SI125 series utilizes precision honed tubing and integrated cushioning to minimize impact at stroke ends. Requires ISO VG32 hydraulic oil mist lubrication for optimal performance.
- Automotive production line clamping systems
- Injection molding machine ejectors
- Steel mill material handling equipment
- Paper processing machinery
- Foundry mold compression systems
Installation note:
Ensure proper alignment of piston rod axis (max 0.2° angular misalignment).
Use flexible couplings for vibration-prone environments. Lubricate through
air supply (5–7 drops/m³) if not pre-lubricated. Allow 50mm clearance
behind cylinder for maintenance access.
| Property | Property Value |
|---|---|
| sku | SI125X820S |
| 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 | S-Magnetic |
| Bore Diameter | 125mm |
| Stroke | 820mm |
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.