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 SI40BX115S Standard Cylinder Specifications
- Model: SI40BX115S
- Type: ISO 6432 compliant double-acting pneumatic cylinder
- Bore size: 40mm (1-9/16")
- Stroke: 115mm (4.53")
- Operating pressure: 0.1–0.9 MPa (14.5–130.5 PSI)
- Piston speed: 50–800 mm/s (cushioned)
- Cushioning type: Adjustable rubber buffers at both ends
- Port size: G1/8 (ISO 228-1 standard)
- Seal material: NBR (Nitrile Butadiene Rubber)
- Ambient temperature: -20℃ to 80℃ (-4°F to 176°F)
- Rod material: Hard chrome-plated carbon steel
- Mounting options: MF1 front flange, MB1 rear flange, MP2 foot mounting
- Weight: 1.45 kg (3.2 lbs)
- Dimensions (L×W×H):
- Total length: 215mm (8.46") [Basic length 100mm + stroke]
- Body diameter: 56mm (2.2")
- Rod end height: 82mm (3.23") with MF1 mounting
A workhorse cylinder with precision honed aluminum barrel and corrosion-resistant construction. Features dual cushioning adjustment screws for smooth end-of-stroke deceleration. Optional magnetic piston version (SI40BX115S-M9) available for position sensing. Compatible with ISO 6432 accessories across brands.
- Packaging line clamping/ejection mechanisms
- CNC machine tool door interlocks
- Automated conveyor sorting gates
- Plastic injection molding ejectors
- Food processing positioning systems (FDA-grade seals optional)
- Allow 10mm clearance around cylinder body for heat dissipation
- Use flexible couplings for stroke misalignment >0.5°
- For vertical mounting, specify "UP" marked units with reinforced rod locks
| Property | Property Value |
|---|---|
| sku | SI40BX115S |
| 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 | SUS304 |
| Magnet | S-Magnetic |
| Bore Diameter | <40mm> |
| Stroke | 115mm |
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.









