Airtac SEJ Adjustable Cylinder SEJ50X80-20
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 SEJ50X80-20 Adjustable Cylinder Specifications
- Model: SEJ50X80-20
- Type: Adjustable stroke double-acting cylinder
- Bore size: Ø50 mm
- Stroke: 80 mm (adjustable range: 0-20mm through external stop)
- Operating pressure: 0.1–0.9 MPa
- Cushioning: Rubber buffer + adjustable external stopper
- Port size: M5x0.8 (dual ports on both ends)
- Piston rod thread: M16x1.5
- Temperature range: -20℃ to 80℃
- Material:
- Cylinder tube: Aluminum alloy (hard anodized)
- Piston rod: Chrome-plated steel
- Seals: NBR (nitrile rubber)
- Weight: 1.85 kg (without accessories)
- Dimensions:
- Total length (retracted): 198 mm
- Body diameter: Ø50 mm
- Mounting base: 82mm(W) × 42mm(H)
- Rod end thread length: 20 mm
- ISO standard: 6432 (mounting dimensions)
- Protection rating: IP54 (standard wiper seal)
Precision-adjustable pneumatic cylinder featuring dual-position mechanical stops for micro-stroke adjustment (±10% of nominal stroke). The through-rod design allows external position sensing and mechanical stop installation. Hard chrome piston rod with integrated scraper prevents contamination ingress.
- Precision clamping fixtures with variable workpiece sizes
- Packaging machine end-effector positioning
- Electronics assembly with Z-axis height adjustment
- Textile machinery tension control systems
- Automated inspection equipment positioning
Adjustment procedure:
1. Loosen both lock nuts on adjustment screws2. Rotate stopper clockwise to reduce stroke (max 20mm reduction)
3. Tighten nuts to 2.5N·m torque using a 10mm wrench
Always depressurize before adjustment and lubricate threads with ISO VG32 pneumatic oil.
Avoid side load exceeding 15N. For vertical mounting,
use guided carriage units. Minimum 0.3 MPa required for stable position holding.
| Property | Property Value |
|---|---|
| sku | SEJ50X80-20 |
| 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 | Non-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.