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 SI40X420S Standard Cylinder Specifications
- Model: SI40X420S
- Type: ISO 6432 standard single-acting spring return cylinder
- Bore size: 40mm
- Stroke: 420mm (±0.5mm tolerance)
- Operating pressure: 0.05–1.0 MPa
- Operating temperature: -20℃ to 80℃
- Cushioning type: Adjustable pneumatic cushion (both ends)
- Medium: Clean compressed air (ISO 8573-1:2010 Class 3.4.3)
- Port size: G1/8 (Rc1/8 optional)
- Piston rod thread: M16×1.5
- Seal material: Nitrile rubber (NBR) with wear-resistant ring
- Protection rating: IP65 (dust-tight & water jet resistant)
- Max theoretical thrust: 1256N @ 1.0MPa
- Max speed: 500–800 mm/s (with cushion adjustment)
- Weight: 4.8kg (±3%)
- Dimensions: 616mm(L) × 50mm(W) × 50mm(H) (extended length)
High-precision industrial cylinder featuring chromium-plated piston rod (HRC 45-50 hardness) and anodized aluminum barrel. Designed for long-stroke applications requiring precise linear motion control. Integrated magnetic piston enables position sensing compatibility. Meets ISO 6432 mounting dimensions for easy system integration.
- Automated assembly line clamping mechanisms
- Packaging machine ejection systems
- CNC machine tool door actuators
- Automotive welding fixture positioning
- Textile machinery tension control
| Property | Property Value |
|---|---|
| sku | SI40X420S |
| 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 | S-Magnetic |
| Bore Diameter | <40mm> |
| Stroke | 420mm |
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.









