Airtac SEJ Adjustable Cylinder SEJ40X300-50
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 SEJ Adjustable Cylinder SEJ40X300-50 Technical Details
- Model: SEJ40X300-50
- Type: Double-acting adjustable stroke cylinder
- Bore size: 40mm
- Stroke: 300mm (maximum)
- Adjustment range: 0-50mm (mechanical stroke limiter)
- Operating pressure: 0.05-1.0 MPa
- Piston speed: 50-750 mm/s
- Cushioning: Adjustable elastic cushion (both ends)
- Mounting style: Basic type (MF1) with multiple accessory options
- Rod end type: Male thread M20×1.5
- Ambient temperature: -10℃ to 80℃
- Material: Aluminum alloy barrel, chrome-plated piston rod
- Seal type: NBR seals with wear-resistant ring
- Weight: 2.8 kg (without accessories)
- Dimensions:
- Extended length: 575±1mm
- Retracted length: 335±1mm
- Body diameter: 52mm
- Mounting hole spacing: 30mm (front) / 55mm (rear)
Precision-engineered adjustable stroke cylinder featuring dual mechanical stops for repeatable positioning (±0.5mm accuracy). The integrated shock absorption system reduces end-impact noise to below 75dB. Anti-rotation design maintains alignment in vertical installations. Compatible with ATEX environments when using optional stainless steel variants.
- Variable height work platforms in assembly lines
- Material handling with position-sensitive gripping
- Press-fit operations requiring incremental depth control
- Automated packaging machinery with product size adaptation
- Semiconductor wafer handling systems
Maintenance tip:
Lubricate guide bushings every 500km of cumulative travel using ISO VG32 hydraulic oil.
Avoid lateral loads exceeding 30N to prevent rod deflection.
Critical note:
Always engage mechanical locks before adjusting stroke length under pressure.
Maximum side load capacity reduces by 40% when using full 50mm adjustment range.
| Property | Property Value |
|---|---|
| sku | SEJ40X300-50 |
| 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 | <40mm> |
| 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.