Airtac SEJ Adjustable Cylinder SEJ40X25-20S
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 SEJ40X25-20S Specifications
- Model: SEJ40X25-20S
- Type: Double-acting adjustable stroke cylinder
- Bore size: 40mm
- Stroke: 25mm (adjustable)
- Operating pressure: 0.15–0.8 MPa
- Temperature range: -20℃ to 80℃
- Cushioning type: Adjustable pneumatic cushion
- Mounting style: Basic type (MF1) with multiple optional mounts: LB, LE, MP4
- Port size: G1/8 (NPT1/4 optional)
- Piston rod thread: M12×1.25
- Material: Aluminum alloy barrel, hard anodized piston rod (SUS304 stainless steel)
- Weight: 1.2kg ±5%
- Dimensions: 150mm(L) × 55mm(W) × 55mm(H) (extended length: 175mm)
- Seal material: NBR/PU composite seals
- ISO standard: 6432 (compact cylinder specification)
Precision-engineered adjustable stroke cylinder featuring micrometer-style stroke adjustment (±2mm fine-tuning) with locknut mechanism. The dual-rod design enables precise end-position control through mechanical stoppers. Integrated shock absorbers reduce end-impact noise to below 75dB. Requires ISO 8573-1 class 3 or cleaner compressed air.
- Precision workpiece positioning in CNC tool changers
- Variable height adjustment in semiconductor handling robots
- Pressure-sensitive clamping fixtures for composite material processing
- Packaging line product height compensation systems
- Textile machinery thread tension control mechanisms
Operation tip:
For optimal performance, lubricate with ISO VG32 hydraulic oil (AIR TAC P-1S oil recommended)
and maintain 0.3-0.5mm clearance between stopper plates during adjustment. Avoid full extension
locking for over 72 hours to prevent seal deformation.
| Property | Property Value |
|---|---|
| sku | SEJ40X25-20S |
| 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 | <40mm> |
| 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.