Airtac SEJ Adjustable Cylinder SEJ50X80-40S
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 SEJ50X80-40S Adjustable Cylinder Technical Details
- Model: SEJ50X80-40S
- Type: Double-acting adjustable stroke cylinder
- Bore size: 50mm
- Stroke: 80mm (adjustable)
- Operating pressure: 0.15-0.8 MPa
- Stroke adjustment range: 0-80mm (mechanical stop mechanism)
- Cushioning type: Adjustable air cushion at both ends
- Mounting style: MF1 (front flange with rectangular base)
- Port size: M5x0.8 (standard), G1/8 optional
- Piston rod thread: M12x1.25
- Material: Aluminum alloy barrel, hardened steel rod
- Temperature range: -20℃ to 80℃
- Weight: 1.85kg ±2%
- Dimensions: 196mm(L) × 92mm(W) × 97mm(H) (fully extended)
- Rod end type: Female thread with locknut
- Seal material: NBR (nitrile) standard, optional polyurethane
- Protection rating: IP54 (standard), IP67 with optional wiper
Precision stroke-adjustable cylinder featuring a mechanical stop mechanism for position control within 0.5mm repeatability. The dual cushioning system minimizes end-impact noise (<65dB) while maintaining 0.05-0.3m/s optimal speed range. Anti-rotation design ensures stable load bearing with lateral force capacity up to 120N.
- Precision clamping fixtures in CNC machining centers
- Variable height positioning in automated packaging lines
- Sheet metal bending machine stroke control
- Electronics assembly pick-and-place units
- Plastic injection molding ejector systems
Installation guidance:
For optimal performance, maintain 0.02-0.05mm alignment tolerance during mounting.
Lubricate with ISO VG32 hydraulic oil before initial operation. Avoid continuous operation
at maximum stroke position for over 30 minutes. Stroke adjustment should be performed
at 0.3MPa or lower pressure.
Critical note:
When using adjustable stroke function under load, ensure locking nut torque reaches
8-10N·m to prevent position drift. Maximum side load should not exceed 2% of axial thrust capacity.
| Property | Property Value |
|---|---|
| sku | SEJ50X80-40S |
| 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 | <50mm> |
| 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.