Airtac SEJ Adjustable Cylinder SEJ50X300-40S
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 SEJ50X300-40S Adjustable Cylinder Specifications
- Model: SEJ50X300-40S
- Type: Double-acting adjustable stroke cylinder
- Bore size: Ø50 mm
- Stroke: 300 mm (adjustable through stopper mechanism)
- Operating pressure: 0.1–0.9 MPa
- Cushioning: Adjustable pneumatic cushion (both ends)
- Port size: Rc1/4 (NPT1/4 optional)
- Piston speed: 50–800 mm/s
- Ambient temperature: -20℃ to 80℃
- Mounting type: Basic type (MF1) with front flange
- Rod end: External thread M16×1.5
- Seal material: Heat-resistant NBR (Nitrile rubber)
- Weight: 3.2 kg (excluding accessories)
- Dimensions:
- Total length: 482 mm (at full extension)
- Body diameter: Ø50 mm
- Mounting height: 63 mm (flange center to base)
- Rod diameter: Ø20 mm
- IP rating: IP54 (standard)
High-precision adjustable stroke cylinder featuring dual cushion control and magnetic piston for position sensing. The anodized aluminum construction provides corrosion resistance in humid environments. Includes built-in auto-lubrication design for maintenance-free operation up to 2,000 km travel distance.
- Precision press-fit operations in automotive assembly
- Variable height positioning in packaging machinery
- Material handling systems requiring stroke adjustment
- Plastic injection molding ejector mechanisms
- Semiconductor wafer transfer equipment
Installation guidelines:
Maintain 0.5mm minimum clearance between stopper and cylinder body.
Lubricate with ISO VG32 hydraulic oil if used in high-cycle applications (>500 cpm).
Vertical mounting requires additional rod end support for strokes over 200mm.
| Property | Property Value |
|---|---|
| sku | SEJ50X300-40S |
| 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 | 300mm |
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.