AirTAC MDJ Adjustable Cylinder MDJ20X50-20 Technical Specifications
- Model: MDJ20X50-20
- Type: Double-acting adjustable stroke cylinder
- Bore size: Ø20 mm
- Stroke: 50 mm (±1.5mm tolerance)
- Adjustment range: 0-20mm (via external mechanical stopper)
- Operating pressure: 0.05-1.0 MPa
- Cushioning type: Dual adjustable buffers (both ends)
- Mounting style: Basic type (axial mounting holes)
- Port size: M5x0.8 (standard) or NPT1/8 (optional)
- Operating temperature: -20℃ to 80℃
- Piston material: Anodized aluminum alloy
- Rod material: Chrome-plated steel (Cr-Mo)
- Seal type: NBR (nitrile) with wear-resistant ring
- Weight: 0.68 kg (with standard fittings)
- Dimensions:
- Extended length: 128±0.5mm
- Retracted length: 78±0.5mm
- Body diameter: Ø32mm
- Mounting hole spacing: 25mm (center-to-center)
Precision-adjustable pneumatic cylinder featuring micrometer-style stroke adjustment mechanism with locking nuts. The dual cushioning system allows independent adjustment of air cushioning force at both ends, minimizing impact noise. Features corrosion-resistant surface treatment (gold chromate passivation) and integrated magnet for position sensing compatibility.
- Precision stop mechanisms in PCB assembly lines
- Variable stroke applications in packaging machinery
- Position-adjustable clamping devices
- Automated test equipment with variable actuation points
- Textile machinery tension control systems

- Use lock nuts (included) to secure adjustment screws after positioning
- Maintain 0.5-1mm gap between stopper and cylinder end during adjustment
- Lubricate with ISO VG32 hydraulic oil (non-detergent)
- Maximum side load: 3N·m at full extension
Property | Property Value |
---|---|
sku | MDJ20X50-20 |
Adjustable Stroke | <20mm> |
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°C to 70°C Speed Range: 30 to 500 mm/s |
Port Size | M5×0.8 |
Magnet | Non-magnetic |
Cushion Type | Bumper Pad |
Bore Diameter | <20mm> |
Stroke | <50mm> |
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.