Airtac SEJ Adjustable Cylinder SEJ80X250-50S
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 SEJ80X250-50S Adjustable Cylinder Specifications
- Model: SEJ80X250-50S
- Type: Adjustable stroke double-acting cylinder
- Bore size: 80mm
- Stroke: 250mm (adjustable range: ±0.5mm to full stroke)
- Operating pressure: 0.15–0.8 MPa
- Port size: M5×0.8 (standard) / PT1/4 (optional)
- Cushioning: Adjustable hydraulic shock absorber
- Piston rod material: Chrome-plated steel (Cr-Mo)
- Cylinder tube: Hard anodized aluminum alloy
- Seal material: Nitrile rubber (NBR) with wear-resistant ring
- Temperature range: -20℃ to 80℃
- Weight: 3.5kg ±5% (without accessories)
- Dimensions: 350mm(L) × 80mm(W) × 80mm(H) (retracted state)
- Rod end thread: M20×1.5 (external)
- Max thrust: 402N at 0.6MPa
- ISO standard: 15552 compliant
High-precision adjustable stroke cylinder with micro-positioning capability (±0.1mm repeatability). Features corrosion-resistant construction with triple chrome plating on piston rod and integrated auto-lubrication design. Includes magnetic piston for position sensing compatibility (sensor not included).
- Precision press-fit operations in automotive assembly
- Variable height positioning in CNC machine tool changers
- Packaging line product ejection systems
- Glass panel polishing equipment with Z-axis adjustment
- Semiconductor wafer handling robots
Installation guidelines:
Maintain coaxial alignment within 0.2mm tolerance during mounting.
Use locknuts (not included) on both ends of adjustment screws after positioning.
Lubricate with ISO VG32 hydraulic oil before initial operation.
Critical note:
Do not exceed 0.8m/s piston speed without external shock absorbers.
For vertical installations, always install flow control valves on both ports.
| Property | Property Value |
|---|---|
| sku | SEJ80X250-50S |
| Adjustable Stroke | <50mm> |
| 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 | <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.