Airtac SEJ Adjustable Cylinder SEJ40X80-20S
2. Asymmetric bidirectional piston seal structure with compact dimensions and integrated oil reservoir function;
3. Rodless square aluminum tubing construction enhances corrosion resistance;
4. Adjustable cushioning mechanism ensures smooth stroke modulation;
5. Customizable configurations with multiple cylinder variants and mounting accessories;
6. High-temperature resistant sealing materials enable operational range of 0-150°C.
Category: Adjustable Cylinders | Brand: AirTAC | Series: SEJ
AirTAC SEJ40X80-20S Adjustable Stroke Cylinder Specifications
- Model: SEJ40X80-20S
- Bore size: 40mm
- Stroke: 80mm (Standard) + 20mm adjustable
- Mounting type: Basic type (Standard) / Optional foot-mounted bracket
- Operating pressure: 0.1-0.9 MPa
- Cushioning: Adjustable pneumatic cushion
- Stroke adjustment range: 0-20mm via external stop screw
- Operating temperature: -10℃ to 70℃
- Tube material: Aluminum alloy with hard anodized surface
- Piston rod material: Chrome-plated steel (Cr-Mo)
- Seal material: NBR (Nitrile rubber)
- Port size: 1/4" NPT (M5 optional)
- Weight: 1.85kg (without accessories)
- Dimensions: 215mm(L) × 58mm(W) × 58mm(H) (Fully extended)
Precision-adjustable pneumatic cylinder featuring a unique double-lock stroke adjustment mechanism. The chrome-plated piston rod integrates wear-resistant seals and dust wipers, supporting up to 1,200km service life under standard conditions. Anti-rotation design ensures stable linear motion during partial stroke operations.
- Position-sensitive assembly line tooling
- Variable height work platforms
- Semiconductor wafer handling systems
- Packaging machine clamping force adjustment
- Automated paint spray distance control
Installation note:
Lubricate with ISO VG32 turbine oil before initial use. For vertical mounting,
install a mechanical stopper to prevent unintended stroke extension. Maintain
50mm clearance behind the adjustment screw for maintenance access.
| Property | Property Value |
|---|---|
| sku | SEJ40X80-20S |
| Adjustable Stroke | <20mm> |
| 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:-20-70°C Speed Range:30-800mm/s |
| Port Size | PT1/4 |
| Magnet | S-Magnetic |
| Bore Diameter | <40mm> |
| Stroke | 80 mm |
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.