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 Series Adjustable Cylinder SEJ50X100-40S Technical Specifications
- Model: SEJ50X100-40S
- Type: Double-acting adjustable stroke cylinder
- Bore size: 50mm (ISO 6432 standard)
- Stroke: 100mm (adjustable through cushion mechanism)
- Operating pressure: 0.05–0.8 MPa
- Cushion type: Adjustable air cushion (both ends)
- Mounting style: Front/rear threaded (M10x1.25) + side mounting slots
- Port size: M5x0.8 (G1/8 NPT optional)
- Rod thread: M10x1.25 male thread
- Temperature range: -20℃ to 80℃
- Material:
- Tube: Aluminum alloy (hard anodized)
- Piston rod: Chrome-plated stainless steel (SUS304)
- Seals: NBR (standard), optional FKM/Viton
- Weight: 1.45kg ±2% (without accessories)
- Dimensions:
- Extended length: 222mm
- Retracted length: 122mm
- Body diameter: 50mm ±0.2
- Mounting base width: 40mm
Precision-engineered adjustable stroke cylinder featuring dual-position cushion locking nuts for millimeter-level stroke adjustment. The SEJ50X100-40S combines 500,000+ cycle durability with ±0.5mm repeat positioning accuracy, achieved through its precision-ground rod and triple-lip seal design. Includes anti-rotation guide for stable vertical operation.
- Precision clamping in CNC fixture systems
- Variable height adjustment in packaging conveyors
- Material positioning in semiconductor handling robots
- Pressure-sensitive assembly processes (e.g., electronics manufacturing)
- Variable stroke applications requiring frequent tooling changes

Property | Property Value |
---|---|
sku | SEJ50X100-40S |
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 | 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.