2、Front/rear end caps feature threaded connection design;
3、Piston sealing adopts specialized bidirectional sealing structure with compact dimensions and integrated oil reservoir function;
4、Front end incorporates self-lubricating bearing guides for enhanced lubrication and directional stability;
5、Multiple rear mounting configurations enable flexible cylinder installation;
6、Available with various cylinder sizes and compatible mounting accessories for customized configurations.
Category: Adjustable Cylinders | Brand: Airtac | Series: MALJ20
AirTAC MALJ20X250-40 Adjustable Miniature Cylinder Specifications
- Model: MALJ20X250-40
- Type: Compact adjustable stroke double-acting cylinder
- Bore size: 20mm
- Stroke: 250mm (adjustable via mechanical stopper)
- Operating pressure: 0.05–0.9 MPa
- Cushioning: Rubber buffer + adjustable stroke mechanism
- Mounting type: Standard ISO 15552 front flange (alternative mounting options available)
- Port size: M5x0.8 (standard) or NPT1/8 (optional)
- Piston rod material: Hard chrome-plated steel
- Tube material: Anodized aluminum alloy
- Seal material: NBR (nitrile rubber) standard / PU optional
- Temperature range: -20℃ to +80℃
- Weight: 1.45kg ±2% (with standard accessories)
- Dimensions (L×W×H):
- Retracted length: 307mm
- Extended length: 557mm
- Body width: 35mm
- Mounting height: 20mm
- Max theoretical force: 28.3kgf @0.5MPa (extend), 25.3kgf @0.5MPa (retract)
The MALJ20 series features a space-saving design with 35% smaller cross-section than standard ISO cylinders. Its unique dual-rod structure enables precise stroke adjustment through rotating screw-type stoppers (±2mm repeatability). The corrosion-resistant construction and integrated magnet (optional) make it ideal for position sensing applications. Includes built-in auto-lubrication grooves for reduced maintenance.
- PCB handling robots in electronics assembly
- Precision clamping mechanisms for CNC tooling
- Dosing valve actuators in food packaging
- Medical device positioning systems
- Automated test equipment stroke control
| Property | Property Value |
|---|---|
| sku | MALJ20X250-40 |
| Adjustable Stroke | <40mm> |
| Mounting Type | Without Mounting Accessories |
| 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 | PT1/8 |
| Magnet | Non-magnetic |
| Bore Diameter | <20mm> |
| Stroke | <250MM> → <250mm> |
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.









