2. Features wear-resistant Y-shaped axial sealing structure with cushioning function, extended service life, and low friction resistance;
3. Aluminum square tube profile with anodized tie rods for superior corrosion resistance;
4. Built-in adjustable pneumatic cushioning at both ends;
5. Multiple cylinder specifications and mounting accessories available for flexible configurations.
Category: Standard Cylinders | Brand: AirTAC | Series: SI40
AirTAC SI40X686 Standard Cylinder Specifications
- Model: SI40X686
- Type: Double-acting pneumatic cylinder
- Bore size: 40mm (ISO 6432 standard)
- Stroke: 50mm (customizable from 25-500mm)
- Operating pressure: 0.05-1.0 MPa
- Cushioning: Adjustable air cushion (both ends)
- Port size: G1/8 (NPT1/8 optional)
- Piston rod material: Chrome-plated carbon steel
- Tube material: Anodized aluminum alloy
- Seal type: NBR rubber (PU optional)
- Temperature range: -20℃ to 80℃
- Weight: 1.8kg (bare cylinder without accessories)
- Dimensions (L×W×H): 212mm × 50mm × 50mm (at mid-stroke)
- Mounting options: Basic type (MF1), foot-mounted (MP2), flange-mounted (MF2)
- Protection class: IP54 (standard), IP67 (optional w/rod cover)
The SI40X686 features a compact profile with enhanced lateral load capacity through integrated guide ribs. Its dual piston seals ensure consistent performance through 3,000km+ service life. The cylinder incorporates wear-resistant band technology that reduces metal-to-metal contact, making it ideal for high-cycle applications. Requires 5μm filtered air with ISO 8573-1:2010 Class 3 air quality.
- High-speed pick-and-place systems in electronics assembly
- Clamping mechanisms for CNC fixture tables
- Actuation of sorting gates in logistics conveyors
- Packaging machine lid closing mechanisms
- Textile machinery thread tension control
| Property | Property Value |
|---|---|
| sku | SI40X686 |
| 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 | PT1/4 |
| Piston Rod Material | Medium Carbon Steel |
| Magnet | Non-magnetic |
| Bore Diameter | <40mm> |
| Stroke | 686 mm |
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.









