Airtac SI63 Standard Cylinder SI63X250SFA
2. Piston sealing features dual-locked Y-type axial sealing structure with dust scraping capability, delivering extended service life and low friction resistance;
3. Aluminum tube with cross-shaped reinforcement and anodized tie rods for enhanced corrosion resistance;
4. Optimized cushion adjustment system with stable stroke control;
5. Multiple bore sizes and mounting accessories available for flexible configuration.
Category: Standard Cylinders | Brand: Airtac | Series: SI63
AirTAC SI63X250SFA Standard Cylinder Technical Specifications
- Model: SI63X250SFA
- Type: ISO 15552 compliant double-acting cylinder
- Bore size: Ø63 mm (±0.1mm tolerance)
- Stroke: 250 mm (adjustable cushioning)
- Operating pressure: 0.15–0.9 MPa
- Piston rod thread: M14×1.5
- Port size: G1/8 (BSPP thread)
- Cushioning type: Adjustable air cushion (both ends)
- Seal material: NBR (Nitrile rubber)
- Temperature range: -20℃ to +80℃
- Weight: 3.5 kg (±2%)
- Dimensions:
- Total length: 398 mm (at mid-stroke position)
- Body diameter: 80 mm
- Mounting flange: 125×125 mm (ISO 15552 front flange)
- Rod end clearance: 32 mm minimum
- Lubrication: Pre-lubricated (relubrication interval: 3,000 km stroke)
- Protection rating: IP65 (rod extension area)
High-precision industrial cylinder with magnetic piston (SFA suffix indicates built-in magnet for position sensing). Features corrosion-resistant aluminum alloy barrel and hard chrome-plated piston rod. Includes rubber bumpers for shock absorption and metal wiper seal for contamination protection. Requires filtered air (5-50μm) with ISO VG32 hydraulic oil mist lubrication recommended.
- Plastic injection molding machine ejectors
- Automated assembly line clamping mechanisms
- Packaging machine vertical lift systems
- CNC machine tool door actuators
- Textile machinery tension control units
Installation guidance:
Mount using class 12.9 M8 bolts (4x) with 25-30 N·m torque.
Maintain 0.5-1mm alignment tolerance between rod and load.
For vertical mounting, install exhaust mist lubricator downstream.
| Property | Property Value |
|---|---|
| sku | SI63X250SFA |
| 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℃ to 80℃ Speed Range: 30-800 mm/s |
| Port Size | PT3/8 |
| Piston Rod Material | Medium Carbon Steel |
| Magnet | S-Magnetic |
| Bore Diameter | 63mm |
| Stroke | <250MM> → <250mm> |
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.