Airtac SEJ Adjustable Cylinder SEJ63X300-20S
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 SEJ63X300-20S Adjustable Stroke Cylinder Specifications
- Model: SEJ63X300-20S
- Type: Double-acting adjustable stroke cylinder with magnetic piston
- Bore size: 63mm (2.48")
- Stroke: 300mm (11.81") adjustable ±2mm
- Operating pressure: 0.05-1.0 MPa (7-145 PSI)
- Cushioning: Adjustable air cushion (both ends)
- Port size: G1/8 (NPT1/8 optional)
- Piston rod material: Hard chrome-plated steel
- Tube material: Anodized aluminum alloy
- Seal material: NBR (Nitrile rubber)
- Ambient temperature: -20℃ to 80℃ (-4°F to 176°F)
- Weight: 3.8kg (8.38 lbs)
- Dimensions:
- Extended length: 549mm (21.61")
- Retracted length: 249mm (9.80")
- Body width: 82mm (3.23")
- Mounting height: 63mm (2.48")
- Accessories: Built-in magnet for sensor detection (inductive sensor not included)
High-precision adjustable stroke cylinder featuring a unique mechanical stopper system with 5-position adjustment locking mechanism. The 20S variant includes dual rod-end mounting threads (M10x1.25) and wear-resistant scraper seals. Requires ISO 8573-1:2010 [4:4:4] class compressed air.
- Variable position clamping in CNC tool changers
- Precision material feeding systems with stroke adjustment requirements
- Packaging machinery with product size variation handling
- Automated welding equipment positioning arms
- Semiconductor wafer handling robots
Installation notes:
- Use locknuts (M10) with 18-22 N·m torque specification
- Maintain 0.5mm minimum clearance between cylinder and magnetic sensor
- Lubricate with ISO VG32 turbine oil if operating below 0.3 MPa
| Property | Property Value |
|---|---|
| sku | SEJ63X300-20S |
| 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 | 300mm |
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.