Airtac SEJ Adjustable Cylinder SEJ63X250-30S
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 SEJ63X250-30S Technical Details
- Model: SEJ63X250-30S
- Bore size: 63mm (ISO standard)
- Stroke: 250mm (adjustable stroke mechanism)
- Operation type: Double-acting
- Working pressure: 0.05-1.0 MPa
- Cushioning: Adjustable pneumatic cushioning (both ends)
- Mounting type: Basic type (optional accessories: MF1~MF8)
- Rod end thread: M20×1.5 (male thread)
- Port size: Rc1/4 (NPT1/4 optional)
- Ambient temperature: -10℃ to 80℃
- Piston speed: 50-750 mm/s
- Seal material: Polyurethane (NBR optional)
- Body material: Aluminum alloy (anodized)
- Weight: 4.8 kg ±2%
- Dimensions:
- Extended length: 559mm
- Retracted length: 309mm
- Width (mounting face): 83mm
- Height (including rod): 119mm
High-precision adjustable stroke cylinder with dual cushion control, featuring micrometer-style stroke adjustment mechanism (±5mm fine-tuning range). The chromium-plated piston rod integrates wiper seal for contamination resistance. Optional magnetic piston version (SEJU series) available for position sensing.
- Die casting machine ejection systems
- Automated welding positioners
- Textile machinery tension control
- Semiconductor handling equipment
- Packaging line product positioning
Installation tip:
Lubricate with ISO VG32 hydraulic oil (1-2 drops per port).
For stroke adjustment: Loosen lock nut, rotate adjustment bolt (1 full rotation = 2mm stroke change),
then re-tighten to 4.5N·m torque. Maintain 0.3mm minimum cushion seal gap.
| Property | Property Value |
|---|---|
| sku | SEJ63X250-30S |
| Adjustable Stroke | 30mm |
| 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 | 63mm |
| 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.