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 SI63X440SN Standard Cylinder Specifications
- Model: SI63X440SN
- Bore size: 63mm (ISO standard)
- Stroke: 440mm (adjustable cushioning)
- Operating pressure: 0.15–0.8 MPa
- Cushion type: Adjustable pneumatic cushion
- Mounting style: Basic type (multiple mounting options available)
- Port size: 1/4" NPT (G1/4 optional)
- Temperature range: -20℃ to 80℃
- Piston rod material: Chrome-plated steel (S45C)
- Seal material: Nitrile rubber (NBR) standard (Polyurethane available)
- Weight: 4.2kg (±3%)
- Dimensions:
- Extended length: 705mm
- Retracted length: 265mm
- Body diameter: 80mm
- Mounting hole spacing: 50mm × 50mm
- Max thrust: 1,960N @0.5MPa
- Speed range: 50–800mm/s
- Protection rating: IP65 (standard wiper design)
The SI63X440SN is a heavy-duty ISO 6432 compliant cylinder featuring dual-side adjustable air cushioning for smooth stroke termination. Its oversized piston rod (20mm diameter) provides exceptional buckling resistance in long-stroke applications. The triple-seal structure with integrated scraper prevents contamination ingress in dusty environments.
- Automated assembly line clamping mechanisms
- Plastic injection molding machine ejectors
- Sheet metal stamping press actuators
- Warehouse conveyor diverters
- Industrial printing press paper feeders
- Max side load capacity: 280N
- Lube oil viscosity: 30-50 cSt @40℃
- Re-lubrication interval: 3 months (continuous operation)
- Bore surface roughness: Ra 0.4μm max
| Property | Property Value |
|---|---|
| sku | SI63X440SN |
| 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℃ 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 | 440mm |
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.









