Airtac SEJ Adjustable Cylinder SEJ40X100-20S
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 SEJ40X100-20S Adjustable Stroke Cylinder Specifications
- Model: SEJ40X100-20S
- Bore size: 40mm
- Stroke: 100mm (adjustable)
- Operating pressure: 0.15–0.8 MPa
- Temperature range: -20℃ to 80℃
- Port size: M5x0.8 (standard) or NPT1/8 (optional)
- Piston rod material: Hard chrome-plated steel (Cr-Mo)
- Cylinder tube: Anodized aluminum alloy
- Seal material: NBR (nitrile rubber)
- Cushioning type: Adjustable air cushion (both ends)
- Mounting options: Front/rear flange, foot mount, or pivot bracket
- Weight: 2.2kg ±5% (without accessories)
- Dimensions: 250mm(L) × 50mm(W) × 50mm(H) (at full extension)
- Rod thread: M10x1.25 (external)
- Protection rating: IP54 (standard wiper seal)
- Lubrication: Pre-lubricated (DOP-free grease)
High-precision adjustable stroke cylinder featuring dual adjustable rubber cushions for impact reduction. The chrome-plated piston rod and precision honed tube ensure smooth operation with ≤0.5mm position repeat accuracy. Integrated magnet slot enables position feedback sensor installation (sensor sold separately).
- Precision workpiece clamping in CNC fixtures
- Variable height adjustment in conveyor systems
- Die cutting pressure control in packaging machinery
- Automated material handling positioners
- Printing press roller engagement mechanisms
Installation tip:
For optimal performance, align cylinder axis within ±2° of load direction.
Adjust cushion screws gradually while testing - overtightening may cause
piston rebound. Use locknut (included) after final adjustment.
| Property | Property Value |
|---|---|
| sku | SEJ40X100-20S |
| 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 | S-Magnetic |
| Bore Diameter | <40mm> |
| Stroke | 100mm |
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.