Airtac SEJ Adjustable Cylinder SEJ63X25-20S
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 Adjustable Cylinder SEJ63X25-20S Technical Details
- Model: SEJ63X25-20S
- Type: Double-acting adjustable stroke cylinder
- Bore size: 63mm (ISO standard)
- Stroke: 25mm (mechanically adjustable)
- Operating pressure: 0.05–1.0 MPa
- Cushioning: Adjustable rubber buffers at both ends
- Mounting style: Basic type (no built-in mounts)
- Port size: Rc1/4 (G1/4 optional)
- Temperature range: -10℃ to 80℃
- Material: Aluminum alloy barrel, hardened chromium-plated piston rod
- Seal type: NBR wear-resistant seals
- Weight: 1.8kg ±2% (excluding accessories)
- Dimensions:
- Total length (L): 135mm (min) / 160mm (max)
- Body width (W): 80mm (including mounting lugs)
- Height (H): 63mm (barrel diameter)
Precision stroke-adjustable cylinder featuring micrometer-style stroke adjustment mechanism (±1mm accuracy). The dual anti-rotation design prevents piston rod spinning during position fine-tuning. Includes built-in magnet for position sensing compatibility. Rated for 5,000km service life under standard operating conditions.
- Precision press-fit operations in electronics assembly
- Variable height positioning in CNC tool changers
- Clamping force adjustment in fixture systems
- Packaging machine stopper positioning
- Semiconductor wafer handling equipment
Usage Tip:
Lubricate adjustment threads monthly with ISO VG32 hydraulic oil.
For vertical installations, add a mechanical locknut to prevent
stroke drift. Maximum side load capacity: 15N at mid-stroke.
| Property | Property Value |
|---|---|
| sku | SEJ63X25-20S |
| 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 | 63mm |
| Stroke | <25 mm> |
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.