Airtac SEJ Adjustable Cylinder SEJ40X80-40S
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 SEJ40X80-40S Technical Specifications
- Model: SEJ40X80-40S
- Type: Double-acting adjustable stroke cylinder
- Bore size: 40mm (±0.05mm precision honing)
- Stroke: 80mm (mechanically adjustable)
- Operating pressure: 0.1–0.8 MPa
- Operating temperature: -20℃ to 100℃
- Cushioning: Rubber buffer + adjustable screw
- Port size: M5x0.8 (standard), G1/8 optional
- Mounting type: Basic foot mount (ISO 15552 compatible)
- Material: Aluminum alloy barrel, chrome-plated steel piston rod
- Seal material: NBR (nitrile rubber)
- Weight: 1.8kg (±3% tolerance)
- Dimensions (L×W×H): 160mm × 85mm × 85mm (full extension)
- Rod thread: M10x1.25 external thread
- Max theoretical force: 502N @0.8MPa (extend), 444N @0.8MPa (retract)
- Lubrication: Pre-lubricated (Grease-free operation possible)
- Protection class: IP54 (standard sealing)
Precision-engineered adjustable stroke cylinder featuring a unique mechanical locking mechanism for stroke adjustment (±1mm repeat accuracy). The SEJ40X80-40S incorporates dual sealing systems with dust-resistant scraper rings, making it ideal for environments with particulate contamination. The corrosion-resistant chrome plating on the piston rod (20-25μm thickness) ensures durability in humid conditions.
- Variable position clamping fixtures in CNC machining centers
- Packaging line product ejection systems
- Glass handling equipment with adjustable grip positions
- Semiconductor wafer transfer mechanisms
- Automated welding positioners requiring stroke flexibility
Installation guidance:
When adjusting stroke length, always back off adjustment screw by 1/4 turn after locking to prevent thread binding. Use 32# hydraulic oil for lubrication if operating below -10℃. Maintain minimum 0.5mm alignment tolerance during mounting.
- Standard seals: 3,000km cumulative travel distance
- High-durability option (NBR+PTFE): 5,000km
- Re-lubrication interval: 500,000 cycles or 6 months
| Property | Property Value |
|---|---|
| sku | SEJ40X80-40S |
| Adjustable Stroke | <40mm> |
| 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.