Airtac SEJ Adjustable Cylinder SEJ40X500-50S
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 SEJ Adjustable Cylinder SEJ40X500-50S Specifications
- Model: SEJ40X500-50S
- Type: Double-acting adjustable stroke cylinder with auto-switch compatibility
- Bore size: 40mm
- Stroke: 500mm (adjustable)
- Operating pressure: 0.05–1.0 MPa
- Temperature range: -10℃ to 80℃
- Cushioning type: Adjustable rubber buffer (both ends)
- Port size: Rc1/4 (G1/4 optional)
- Mounting type: Basic type (axial mounting holes)
- Material: Aluminum alloy barrel, hardened stainless steel piston rod
- Seals: NBR (standard), optional PU for high-speed applications
- Weight: 5.2kg ±3% (without accessories)
- Dimensions: 650mm(L) × 52mm(W) × 52mm(H) (fully extended)
- Max piston speed: 500–800 mm/s (lubricated)
- Repeat positioning accuracy: ±0.5mm
High-precision adjustable stroke cylinder featuring dual cushioning control and corrosion-resistant construction. The SEJ series incorporates a unique stroke adjustment mechanism with visual position indicators, allowing ±5% stroke modification without disassembly. Designed for applications requiring variable positioning in harsh environments.
- Variable height positioning in automotive assembly jigs
- Packaging line product ejection systems
- Plastic injection molding machine core-pull mechanisms
- Semiconductor wafer handling robots
- Textile machinery tension control units
Operation note:
For optimal performance, maintain 0.5–1.0 MPa lubrication pressure when using oil mist lubrication.
Avoid lateral loads exceeding 30N. Stroke adjustment requires 8mm hex key (not included).
Critical specification:
Maximum side load capacity 150N at mid-stroke. Requires rigid mounting surface
with flatness ≤0.1mm/100mm. Not suitable for vertical downward thrust applications
without external guides.
| Property | Property Value |
|---|---|
| sku | SEJ40X500-50S |
| 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 | S-Magnetic |
| Bore Diameter | <40mm> |
| Stroke | 500mm |
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.