Airtac SEJ Adjustable Cylinder SEJ80X250-40
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 SEJ80X250-40 Adjustable Cylinder Specifications
- Model: SEJ80X250-40
- Type: Double-acting adjustable stroke cylinder
- Bore size: 80mm
- Stroke: 250mm (adjustable via external stopper)
- Operating pressure: 0.05–0.8 MPa
- Temperature range: -20℃ to 80℃
- Port size: PT1/4 (G1/4 optional)
- Piston rod diameter: 25mm
- Cushioning type: Adjustable rubber buffer
- Mounting style: Basic type (MF1) with optional mounting accessories
- Seal material: NBR (standard) / PU (optional)
- Weight: 5.8kg ±2%
- Dimensions:
- Total length (extended): 515mm
- Body diameter: 80mm
- Mounting base: 125mm × 125mm
- Rod end thread: M16×1.5
- ISO standard: 15552 (formerly ISO 6431)
- Protection rating: IP65 (rod seal)
High-precision industrial cylinder featuring external stroke adjustment mechanism with ±1mm repeatability. The anodized aluminum construction with chromed piston rod ensures corrosion resistance in humid environments. Integrated cushioning adjustment screws allow fine-tuning of end-position deceleration, making it ideal for high-cycle applications.
- Automated production line positioning systems
- Die-casting machine ejection mechanisms
- Packaging equipment with variable product sizes
- Plastic injection molding machine clamping units
- Automotive assembly line lifting platforms
Installation tip:
For optimal performance, maintain 0.3-1mm clearance between adjustable stoppers at stroke ends.
Lubricate rod with ISO VG32 hydraulic oil monthly in continuous operation environments.
- Magnetic sensors: D-A93 series
- Mounting brackets: PMFL80-50
- Rod lock nuts: M16×1.5 stainless steel kit
| Property | Property Value |
|---|---|
| sku | SEJ80X250-40 |
| 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 | PT3/8 |
| Magnet | Non-magnetic |
| Bore Diameter | 80 mm |
| Stroke | <250MM> → <250mm> |
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.