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 SEJ63X70-40S Adjustable Stroke Cylinder Specifications
- Model: SEJ63X70-40S
- Type: Double-acting adjustable stroke cylinder
- Bore size: 63mm
- Stroke: 70mm (adjustable through built-in stopper)
- Operating pressure: 0.05–1.0 MPa
- Port size: Rc1/4 (G1/4 optional)
- Cushioning: Adjustable pneumatic cushion (front/rear)
- Rod end type: Female thread M16×1.5
- Piston material: Aluminum alloy with hard anodizing
- Rod material: Chrome-plated steel (Cr-Mo)
- Seal type: NBR seals with wear-resistant ring
- Ambient temperature: -10℃ to 80℃
- Weight: 2.8kg (without accessories)
- Dimensions:
- Extended length: 205mm
- Retracted length: 135mm
- Body width: 78mm
- Mounting height: 110mm
Industrial-grade adjustable stroke cylinder featuring precision machining and durable construction. The dual-cushion design allows ±3mm stroke adjustment via hexagonal wrench. Equipped with magnetic piston for sensor compatibility. Corrosion-resistant surface treatment ensures reliable performance in humid environments.
- Automated assembly line positioning systems
- Die-casting machine ejector mechanisms
- Textile machinery tension control
- Glass processing equipment stops
- Automotive welding fixture positioning

Property | Property Value |
---|---|
sku | SEJ63X70-40S |
Adjustable Stroke | <40mm> |
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 | 70mm |
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.