AirTAC MDJ Series Adjustable Cylinder MDJ20X40-20S Technical Details
- Model: MDJ20X40-20S
- Type: Double-acting adjustable cushion cylinder
- Bore size: 20mm
- Stroke: 40mm (±1mm adjustment range)
- Operating pressure: 0.05-1.0 MPa
- Operating temperature: -20℃ to 80℃
- Cushion type: Adjustable buffer (both ends)
- Mounting style: Front flange with ISO 15552 standard
- Port size: M5x0.8 (1/8" NPT optional)
- Piston material: Aluminum alloy hard anodized
- Rod material: Chrome-plated steel (Cr-Mo)
- Seal type: NBR seals (FDA compliant option available)
- Weight: 0.62kg ±3%
- Dimensions: 156mm(L) × 34mm(W) × 34mm(H)
- Repeat accuracy: ±0.1mm
- Max speed: 500mm/s
- Protection class: IP54 (standard), IP67 with optional wiper
Precision-engineered compact cylinder featuring twin adjustable hydraulic cushions for smooth end-of-stroke deceleration. The MDJ20X40-20S combines an anodized aluminum body with hardened stainless steel guide rods, providing exceptional wear resistance in high-cycle applications (up to 2 million cycles). Integrated magnetic piston enables position feedback when used with compatible sensors.
- Precision positioning in semiconductor handling robots
- Clamping mechanisms in CNC fixture systems
- Vertical lifting stages in packaging machinery
- Actuation in cleanroom-compatible automation
- Material sorting gates with position feedback

Property | Property Value |
---|---|
sku | MDJ20X40-20S |
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 | S-Magnetic |
Cushion Type | Bumper Pad |
Bore Diameter | <20mm> |
Stroke | <40mm> |
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.