Airtac SEJ Adjustable Cylinder SEJ50X70-40S
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 SEJ50X70-40S Adjustable Stroke Cylinder Specifications
- Model: SEJ50X70-40S
- Type: Double-acting adjustable stroke cylinder
- Bore size: Ø50 mm
- Stroke: 70 mm (adjustable)
- Operating pressure: 0.1–0.9 MPa
- Cushioning: Adjustable pneumatic cushion
- Port size: PT1/4 (G1/8 optional)
- Piston rod diameter: Ø20 mm
- Rod material: SUS304 stainless steel
- Cylinder tube: Aluminum alloy (hard anodized)
- Seal material: NBR (nitrile rubber)
- Ambient temperature: -20℃ to 80℃
- Repeat positioning accuracy: ±0.5 mm
- Weight: 2.45 kg (with mounting brackets)
- Dimensions: 200mm(L) × 50mm(W) × 80mm(H) (max extended length)
High-precision adjustable stroke cylinder featuring a unique mechanical stopper system with 360° adjustable positions. The triple-sealed construction ensures leak-free operation in dusty environments. Integrated shock absorbers minimize end-impact vibration (adjustable via 2mm hex key). Requires ISO 8573-1:2010 Class 3 compressed air.
- Position control in automated assembly lines
- Precision clamping fixtures for CNC machining
- Variable height adjustment in packaging machinery
- Material handling systems requiring multi-position stops
- Automotive test equipment positioning
Installation note:
Mounting surface flatness ≤0.1mm/m. Lubricate rod with ISO VG32 hydraulic oil
every 500km of cumulative travel. Adjust stoppers only when cylinder is depressurized.
- Loosen M6 locking screw (3.5Nm max torque)
- Rotate graduated collar (1 full rotation = 5mm stroke change)
- Verify position using integrated scale (0.1mm divisions)
- Re-tighten locking screw with anti-vibration thread locker
| Property | Property Value |
|---|---|
| sku | SEJ50X70-40S |
| 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 | 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.