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 SI40X855S Standard Cylinder Specifications
- Model: SI40X855S
- Bore size: 40 mm
- Stroke: 85 mm (customizable from 25-500 mm)
- Operating pressure: 0.1–1.0 MPa
- Cushioning type: Adjustable air cushion (both ends)
- Action type: Double-acting
- Port size: Rc1/4 (NPT1/4 optional)
- Piston speed: 50-800 mm/s
- Ambient temperature: -20℃ to 80℃
- Material:
- Cylinder tube: Hard anodized aluminum alloy
- Piston rod: Chrome-plated stainless steel (SUS304)
- Seal material: Nitrile rubber (NBR) standard (Polyurethane available for high-speed applications)
- Weight: 1.65 kg (with standard stroke 85mm)
- Dimensions:
- Length: 195 mm (retracted length)
- Width: 52 mm (max cylinder body width)
- Height: 52 mm (including mounting accessories)
- Mounting options: Basic type (MF1), front flange (MF2), rear flange (MF3), foot mounting (MF4)
- Lubrication: Pre-lubricated (maintenance-free for 2000 km operation)
A high-precision ISO-standard pneumatic cylinder featuring wear-resistant construction and precise linear motion control. The anodized barrel surface provides exceptional corrosion resistance, while the triple-lip seal design ensures leak-free operation under continuous cycling. Integrated cushioning adjustment screws allow fine-tuning of end-position deceleration.
- Automated assembly line clamping mechanisms
- Printing machine paper feed systems
- CNC tool changers
- Packaging equipment pusher arms
- Electronics manufacturing test fixtures
| Property | Property Value |
|---|---|
| sku | SI40X855S |
| 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 | 855mm |
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.









