Airtac SEJ Adjustable Cylinder SEJ80X300-20S
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 SEJ80X300-20S Adjustable Cylinder Technical Details
- Model: SEJ80X300-20S
- Series: SEJ (Adjustable Stroke Cylinder Series)
- Bore size: Ø80mm ±0.5mm
- Stroke: 300mm (adjustable range 0-300mm)
- Adjustment mechanism: External mechanical locking collar
- Mounting type: MF1 standard flange mounting
- Port size: G1/4 (BSPP thread)
- Operating pressure: 0.1-0.9 MPa
- Cushioning: Adjustable air cushion at both ends
- Piston material: Aluminum alloy with hard anodizing
- Rod material: Chrome-plated steel (Cr equivalent ≥0.8μm)
- Seal material: NBR (Nitrile rubber)
- Temperature range: -10℃ to +70℃
- Weight: 3.7kg ±5% (without accessories)
- Dimensions:
- Total length (extended): 583mm
- Body diameter: 95mm
- Mounting flange: 125×125mm
- Rod end thread: M20×1.5
Heavy-duty adjustable stroke cylinder featuring dual-position mechanical locking for precise stroke adjustment. The enhanced rod bearing design ensures ≤0.8mm lateral play at full extension. Integrated wear indicators on guide bands allow predictive maintenance. Requires ISO 8573-1:2010 Class 3 compressed air.
- Variable height positioning in automotive assembly jigs
- Press tool height adjustment systems
- Plastic injection molding machine ejectors
- Warehouse lift platform actuators
- Agricultural equipment height control
Operation tip:
Always depressurize before adjusting stroke. Lubricate adjustment threads monthly with ISO VG32 hydraulic oil. Maximum side load capacity: 220N at mid-stroke. For vertical installations, use rod-down orientation to prevent seal wear.
| Property | Property Value |
|---|---|
| sku | SEJ80X300-20S |
| 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 | PT3/8 |
| Magnet | S-Magnetic |
| Bore Diameter | 80 mm |
| 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.