Airtac SEJ Adjustable Cylinder SEJ40X300-30S
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 SEJ40X300-30S Adjustable Cylinder Specifications
- Model: SEJ40X300-30S
- Type: Double-acting adjustable stroke cylinder
- Bore size: 40mm
- Stroke: 300mm (adjustable within ±2mm)
- Operating pressure: 0.05–1.0 MPa
- Piston speed: 50–800 mm/s
- Cushioning type: Adjustable rubber buffer (both ends)
- Mounting style: Basic type (axial mounting holes)
- Port size: M5x0.8 (Rc1/8/NPT1/8 optional)
- Ambient temperature: -20℃ to 80℃
- Seal material: NBR (Nitrile Butadiene Rubber)
- Weight: 2.8kg ±5%
- Dimensions:
- Extended length: 562mm
- Retracted length: 262mm
- Body diameter: 40mm
- Rod diameter: 16mm
Precision-engineered adjustable stroke cylinder featuring dual-position mechanical locks for mid-stroke positioning. The chromium-plated piston rod and aluminum alloy body ensure corrosion resistance in humid environments. Integrated magnetic sensor slots (T-slot type) enable position feedback when used with compatible sensors.
- Precision workpiece clamping in CNC machining centers
- Variable height positioning in automated assembly lines
- Material handling systems requiring multiple stop positions
- Packaging machinery with adjustable compression force
- Semiconductor manufacturing equipment
Installation note:
Requires periodic lubrication (ISO VG32 hydraulic oil recommended).
For vertical installations, use locknut (model LK-40) to prevent stroke drift.
Maximum side load capacity: 150N. Allow 15mm clearance for stroke adjustment mechanism operation.
| Property | Property Value |
|---|---|
| sku | SEJ40X300-30S |
| Adjustable Stroke | 30mm |
| 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.