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 SI40X870S Standard Cylinder Specifications
- Model: SI40X870S
- Bore size: 40 mm
- Stroke: 870 mm
- Operating pressure: 0.1–0.9 MPa
- Operating temperature: -20℃ to 80℃
- Cushioning type: Adjustable air cushion (both ends)
- Mounting type: Basic type (no accessories) with ISO/VDMA mounting patterns
- Port size: G1/8 (M5x0.8 optional)
- Piston rod thread: M10x1.25
- Material:
- Cylinder tube: Aluminum alloy (hard anodized)
- Piston rod: Chrome-plated carbon steel
- Seal material: NBR (nitrile rubber)
- Weight: 5.8 kg (with rod)
- Dimensions:
- Extended length: 1180 mm
- Retracted length: 310 mm
- Body width: 58 mm
- Height with mounting: 76 mm
High-precision long-stroke pneumatic cylinder with reinforced rod bearing design for heavy lateral load resistance. Features triple-layer sealing system (wiper seal + main seal + rod seal) and anti-rotation piston rod. Requires 5μm filtered air with ISO 8573-1:2010 Class 3 air quality. Lubricated models available (add "-L" suffix).
- Automated material handling systems
- Plastic injection molding ejectors
- Textile machinery tension control
- Automotive assembly line positioning
- Large-format 3D printer Z-axis drives
| Property | Property Value |
|---|---|
| sku | SI40X870S |
| 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 | 870mm |
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.









