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 SI40AX85S Standard Cylinder Specifications
- Model: SI40AX85S (SI Series Standard Cylinder)
- Bore size: 40mm
- Stroke: 85mm
- Operating pressure: 0.05–1.0 MPa
- Cushion type: Adjustable air cushion (both ends)
- Port size: Rc1/8 (G1/8 optional)
- Mounting type: Basic type (axial foot & front flange)
- Piston rod thread: M12×1.25
- Temperature range: -20℃ to 80℃
- Body material: Aluminum alloy (anodized)
- Seal material: NBR (nitrile rubber)
- Rod material: Stainless steel (SUS304)
- Weight: 1.8kg (with standard accessories)
- Dimensions: 250mm(L) × 50mm(W) × 50mm(H) (retracted length)
- Max theoretical thrust: 125.6N @0.5MPa
- Max speed: 500–800mm/s (with cushion)
- ISO standard: 6432
High-precision ISO 6432 compliant cylinder featuring dual adjustable cushions and anti-rotation mechanism. The aluminum body with hard anodized treatment provides corrosion resistance in humid environments. Designed for medium-duty linear motion with precise position control through magnetic piston (sensor-ready design).
- Packaging machinery clamping mechanisms
- Automated assembly line part positioning
- Material handling gate actuators
- Automotive welding fixture drives
- Conveyor system diverters
| Property | Property Value |
|---|---|
| sku | SI40AX85S |
| 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 | SUS420J2 |
| Magnet | S-Magnetic |
| Bore Diameter | <40mm> |
| Stroke | 85mm |
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.









