Airtac SEJ Adjustable Cylinder SEJ50X30-20S
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 SEJ Series Adjustable Cylinder SEJ50X30-20S Technical Details
- Model Code: SEJ50X30-20S
- Bore Size: Ø50 mm (ISO 6432 standard)
- Stroke: 30 mm (adjustable via external stopper)
- Rod Thread: M20×1.5 (external)
- Operating Pressure: 0.05-1.0 MPa
- Ambient Temperature: -10℃ to 70℃
- Cushioning: Adjustable pneumatic cushion (both ends)
- Mounting Style: Basic type (no built-in mounts)
- Port Size: Rc1/4 (NPT1/4 optional)
- Piston Material: Die-cast aluminum alloy with hard anodizing
- Rod Material: Chrome-plated steel (Cr-Mo)
- Seal Type: HNBR seals (high nitrile for oil resistance)
- Weight: 1.85 kg (without accessories)
- Dimensions:
- Extended Length: 187 mm
- Retracted Length: 157 mm
- Body Width: 68 mm (including cushion screws)
- Height: 60 mm (barrel diameter + mounting base)
High-precision adjustable stroke cylinder featuring dual-sided shock absorption and precision-machined guide surfaces. The 20S variant includes a reinforced rod end for side load applications. Requires ISO VG32 hydraulic oil or equivalent for lubrication. Optional magnetic piston version available (add "-M" suffix).
- Clamping force adjustment in CNC fixture systems
- Precision positioning in semiconductor wafer handling
- Variable pressure applications in rubber molding presses
- Packaging line product height compensation
- Automated door stroke limitation in cleanrooms
Installation protocol:
Maximum allowable lateral load 35N. For vertical mounting,
use counterbalance valve when holding loads >5kg. Adjust cushion screws
in 1/4 turn increments during commissioning. Lubricate every 5,000km stroke
or 6 months in normal service.
| Property | Property Value |
|---|---|
| sku | SEJ50X30-20S |
| 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 | PT1/4 |
| Magnet | S-Magnetic |
| Bore Diameter | <50mm> |
| Stroke | 30mm |
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.