Airtac SI40 Standard Cylinder SI40X70STC
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 SI40X70STC Standard Cylinder Specifications
- Model: SI40X70STC
- Type: ISO 15552 compliant double-acting cylinder
- Bore size: 40 mm
- Stroke: 70 mm (±0.5 mm tolerance)
- Operating pressure: 0.05–1.0 MPa
- Operating temperature: -20℃ to 80℃
- Cushioning: Adjustable pneumatic cushion (both ends)
- Port size: M5x0.8 (G1/8 adapter optional)
- Piston rod thread: M10x1.25
- Material: Aluminum alloy barrel, chrome-plated steel rod
- Seals: NBR (standard), optional FKM for high temp
- Protection rating: IP65 (rod extended)
- Weight: 1.45 kg (without accessories)
- Dimensions: 156mm (length) × 40mm (bore diameter) × 82mm (mounting height)
- Max theoretical force: 126N @ 0.5MPa (extend), 115N @ 0.5MPa (retract)
- Max speed: 0.1–1.5 m/s
- Lubrication: Pre-lubricated (DOP oil), maintenance-free design
A heavy-duty ISO-standard pneumatic cylinder featuring precision honed tubing and wear-resistant rod seals. The SI40 series incorporates dual magnetic sensor slots (ST model variant) for position feedback. The T-shaped mounting base provides 360° adjustable positioning. Optional rod lock mechanism available for vertical applications.
- Automated assembly line clamping/pressing
- Packaging machine ejector systems
- CNC machine tool door interlocks
- Plastic injection molding ejectors
- Material handling conveyor stoppers
Installation tip:
When using in vertical orientation, install with rod end downward to prevent
condensate accumulation. Apply thread sealant on piston rod accessories using
LOCTITE 542 (max 0.1mm thickness). For high-cycle applications (>1 million cycles),
recommend adding external guide mechanisms.
| Property | Property Value |
|---|---|
| sku | SI40X70STC |
| 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 | 70mm |
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.