Airtac SEJ Adjustable Cylinder SEJ80X250-50
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 SEJ80X250-50 Adjustable Cylinder Specifications
- Model: SEJ80X250-50
- Type: Double-acting adjustable stroke cylinder
- Bore size: 80mm (ISO standard)
- Stroke: 250mm (adjustable)
- Adjustment range: ±25mm (manual stroke adjustment)
- Operating pressure: 0.15–0.8 MPa
- Temperature range: -20℃ to 80℃
- Cushioning: Adjustable pneumatic cushion (both ends)
- Mounting style: Basic type (optional foot/mounting flange)
- Port size: G1/2 (NPT1/2 optional)
- Rod material: Chrome-plated steel rod
- Cylinder tube: Hard anodized aluminum alloy
- Seal material: NBR + PU combination
- Weight: 4.8kg (without accessories)
- Dimensions: 305mm(L) × 80mm(W) × 80mm(H) (minimum retracted length)
- Max thrust: 3930N @0.5MPa
- Speed range: 50–750mm/s
High-precision industrial cylinder with patented stroke adjustment mechanism, featuring a double locknut design for position retention under vibration. The hardened piston rod and triple sealing system ensure reliable performance in dirty environments. Includes wear-resistant guide bands for smooth operation.
- Precision position control in automated assembly lines
- Variable height adjustment in packaging machinery
- Material handling systems requiring multi-position stops
- Plastic injection molding machine ejectors
- Automotive welding fixture positioning
Operation note:
Lubricate via air line oiler (ISO VG32 recommended).
Adjust stroke while cylinder is depressurized.
Maximum side load capacity: 180N at mid-stroke.
| Property | Property Value |
|---|---|
| sku | SEJ80X250-50 |
| 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 | 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.