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 SEJ63X25-30S Adjustable Stroke Cylinder Specifications
- Model: SEJ63X25-30S
- Type: Double-acting adjustable stroke cylinder
- Bore size: 63mm
- Stroke: 25mm (adjustable via mechanical stopper)
- Mounting style: SW63-30S (front flange with tapped holes)
- Operating pressure: 0.15–0.8 MPa
- Cushioning: Adjustable rubber buffer
- Port size: M5x0.8 (standard) or NPT1/8 (optional)
- Operating temperature: -20℃ to 80℃
- Piston material: Aluminum alloy with hard anodizing
- Rod material: Stainless steel SUS304
- Seal type: NBR + PU combination
- Protection rating: IP40 (standard)
- Weight: Approximately 1.8kg
- Dimensions: 156mm(L) × 63mm(W) × 63mm(H)
Precision-engineered adjustable stroke cylinder featuring micro-positioning capability through its unique mechanical stopper system. The dual-scale markings (mm and inch) on the stopper screws enable precise stroke adjustment without disassembly. Corrosion-resistant construction with triple-layer chrome plating on piston rod ensures durability in humid environments.
- Precision clamping fixtures in CNC machining centers
- Variable height positioning in automated assembly lines
- Dosing control in pharmaceutical packaging machinery
- Pressure-sensitive material handling systems
- Semiconductor wafer transfer mechanisms

Property | Property Value |
---|---|
sku | SEJ63X25-30S |
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 | <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.