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 SEJ40X300-100S Adjustable Cylinder Specifications
- Model: SEJ40X300-100S
- Bore size: 40mm
- Stroke: 300mm (adjustable)
- Operating pressure: 0.1–0.9 MPa
- Medium: Dry air (lubricated/non-lubricated)
- Action type: Double-acting
- Cushioning: Adjustable buffering at both ends
- Temperature range: -20℃ to 80℃
- Seal material: NBR (Nitrile rubber)
- Mounting style: Basic type (optional front flange/bracket)
- Port size: 1/4" NPT (M5×0.8 optional)
- Repeat positioning accuracy: ±0.5mm
- Max piston speed: 500mm/s
- Rod thread: M10×1.25
- Weight: 2.85kg (without accessories)
- Dimensions: 380mm(L) × 80mm(W) × 80mm(H)
- Protection rating: IP54 (standard)
High-precision adjustable stroke cylinder with micrometer-style stroke adjustment mechanism (±5mm fine-tuning). Features chrome-plated piston rod with hardened steel guide bushing for enhanced durability. The 100S variant includes built-in magnetic sensor slots (PNP/NPN selectable) for position feedback. Requires 5μm filtered air and weekly lubrication cycle for optimal performance.
- Precision press-fit operations in automotive assembly
- Variable height positioning in packaging lines
- Clamping force adjustment in CNC jig systems
- Material feed control in textile machinery
- 3-axis automation with dynamic stroke requirements
| Property | Property Value |
|---|---|
| sku | SEJ40X300-100S |
| Adjustable Stroke | 100mm |
| 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 | 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.







