Airtac SEJ Adjustable Cylinder SEJ40X80-50
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 SEJ Series Adjustable Cylinder SEJ40X80-50 Technical Specifications
- Model: SEJ40X80-50
- Type: Single-rod adjustable stroke cylinder
- Bore diameter: 40mm
- Stroke: 80mm (±0.5mm tolerance)
- Adjustment range: 50mm (20-70mm stroke adjustment capability)
- Operating pressure: 0.05-1.0 MPa
- Cushioning type: Adjustable pneumatic cushion (both ends)
- Port size: G1/8 (ISO standard)
- Rod end thread: M12×1.25
- Temperature range: -20℃ to 80℃
- Material: Aluminum alloy barrel, chrome-plated piston rod
- Seal material: NBR (nitrile rubber)
- Mounting style: Basic type (multiple options available: foot, flange, etc.)
- Weight: 1.85kg (without accessories)
- Dimensions: 198mm(L) × 40mm(Bore) × 80mm(H) (at full extension)
- Max theoretical force: 126N (at 0.7MPa)
- Piston speed: 50-750mm/s
Precision-engineered adjustable stroke cylinder featuring micro-positioning capability through its unique mechanical stopper system. The dual adjustable cushions minimize end-impact noise while allowing precise speed control. Anodized barrel surface enhances corrosion resistance in humid environments. Includes built-in magnet for position sensing compatibility.
- Precision part insertion in electronic assembly lines
- Variable height positioning in packaging machinery
- Clamping force adjustment in CNC fixture systems
- Conveyor gate control with adjustable timing
- Textile machinery tension adjustment mechanisms
- Use locking nuts (included) to secure adjustment bolts after positioning
- Lubricate with ISO VG32 hydraulic oil if operating below 0.3MPa
- Maintain 0.5mm minimum clearance between stopper and rod bracket
- For vertical mounting, install rod end downward to prevent seal wear
- Adjust cushion needle valve gradually - 1/4 turn increments recommended
Maintenance Tip:
Inspect cushion adjustment bolts every 500km of stroke travel. Replace cushion seals after 1 million cycles in high-speed applications (>500mm/s).
| Property | Property Value |
|---|---|
| sku | SEJ40X80-50 |
| Adjustable Stroke | <50mm> |
| 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 | Non-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.