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 SI40X445S Standard Cylinder Specifications
- Model: SI40X445S
- Bore size: 40mm (ISO 6432 compliant)
- Stroke: 445mm (±1mm tolerance)
- Operating pressure: 0.15–0.8 MPa (21.7–116 PSI)
- Piston speed: 50–800 mm/s (lubricated)
- Cushioning: Adjustable air cushion at both ends
- Mounting type: Foot-mounted (ISO 15552 MF1)
- Rod end thread: M16×1.5 (external)
- Port size: G1/8 (NPT optional)
- Ambient temperature: -20℃ to +80℃
- Seal material: Nitrile rubber (HNBR upgrade available)
- Tube material: Anodized aluminum alloy
- Rod material: Hard chrome-plated steel
- Weight: 2.9kg (without accessories)
- Dimensions: 612mm(L) × 42mm(W) × 42mm(H) (at mid-stroke)
- Max lateral load: 98N at 50mm extension
- Repeat accuracy: ±0.5mm
High-precision industrial cylinder with extended stroke capability, featuring dual adjustable pneumatic cushions for smooth deceleration. The corrosion-resistant construction incorporates a self-lubricating bushing for maintenance-free operation. Optional magnetic piston version (SI40X445S-M9) available for position sensing.
- Plastic injection molding machine ejectors
- Automated palletizing systems
- Paper feed mechanisms in printing presses
- Automotive assembly line clamping devices
- CNC machine tool chip conveyors
- AR-16M Rod Lock (for vertical position holding)
- MSQ-LS40 Magnetic Sensor Kit
- SCS-40 Self-compensating cushion screw
| Property | Property Value |
|---|---|
| sku | SI40X445S |
| 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 | 445mm |
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.









