Airtac SEJ Adjustable Cylinder SEJ50X250-50
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 SEJ50X250-50 Adjustable Stroke Cylinder Specifications
- Model: SEJ50X250-50
- Type: Double-acting adjustable stroke cylinder
- Bore size: Ø50 mm
- Stroke: 250 mm (adjustable)
- Max. stroke adjustment: ±3mm via external locknut
- Operating pressure: 0.1–0.8 MPa
- Cushioning: Adjustable pneumatic cushion (both ends)
- Temperature range: -20℃ to 80℃
- Seal material: NBR (standard)/PU (optional)
- Port size: Rc1/4 (G1/4 optional)
- Mounting type: Basic/Flange/Foot (multiple options)
- Rod end: Male thread M16×1.5
- Weight: 2.3 kg (bare cylinder), 2.8 kg (with accessories)
- Dimensions:
- Extended length: 510±1 mm
- Retracted length: 260±1 mm
- Body diameter: Ø60 mm
- Mounting hole spacing: 70×70 mm (standard flange)
Precision-engineered adjustable stroke cylinder featuring micro-adjustment capability (±3mm) through dual locking nuts. The chrome-plated piston rod and anodized aluminum barrel ensure corrosion resistance in humid environments. Includes built-in magnetic sensor slots (non-inductive models available) and adjustable cushioning to minimize end-impact noise.
- Precision positioning in automated assembly lines
- Variable stroke requirements in packaging machinery
- Clamping fixtures with adjustable pressure points
- Material handling systems requiring stroke fine-tuning
- Automated welding equipment positioners
Installation note:
Always perform stroke adjustment with depressurized system. Lubricate adjustment threads monthly with ISO VG32 hydraulic oil. Avoid lateral forces exceeding 30N during operation.
- Re-lubrication interval: Every 500,000 cycles or 6 months
- Inspect cushion adjustment every 100 operating hours initially
- Use filtered air (5-40 micron) with oil mist lubrication
| Property | Property Value |
|---|---|
| sku | SEJ50X250-50 |
| 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 | <50mm> |
| Stroke | <250MM> → <250mm> |
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.