Airtac MBL Aluminum Alloy Mini Cylinder MBL20X50SU
The AirTAC Airtac MBL Aluminum Alloy Mini Cylinder MBL20X50SU is a genuine double-acting aluminum-barrel mini round cylinder with a Ø20mm bore and 50mm stroke, G1/8 air ports and a fixed rubber bumper. Its compact riveted body suits push, hold and clamp motion in tight machine spaces.
- BoreØ20 mm
- Stroke50 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM8×1.25
- CushionRubber bumper (MBLC variant: adjustable air cushion)
About the Airtac MBL Aluminum Alloy Mini Cylinder MBL20X50SU
The AirTAC MBL20X50SU is a compact double-acting aluminum mini round cylinder engineered for tight machine spaces. It generates 157 N of push force and 132 N of pull force at 0.5 MPa, making it suitable for light-duty 50mm actuation. The riveted rolling-packed barrel keeps the body light and small, though it is not designed to be disassembled like a tie-rod cylinder.
This specific SKU includes a U flat-end back cover for rigid fixed mounting and a built-in magnet (-S) for position detection. The rod is carbon steel with 20 um hard-chrome plating for wear resistance, paired with a heterogeneous two-way piston seal that retains grease for long service life. It uses a fixed rubber bumper to soften end-of-stroke impact rather than an adjustable cushion.
Airtac MBL Aluminum Alloy Mini Cylinder MBL20X50SU Technical Specifications
| Model | Airtac MBL Aluminum Alloy Mini Cylinder MBL20X50SU |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder |
| Bore size | Ø20 mm |
| Stroke | 50 mm |
| Acting type | Double acting |
| Port size | G1/8 |
| Rod thread | M8×1.25 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 800 mm/s |
| Cushion | Rubber bumper (MBLC variant: adjustable air cushion) |
| Max stroke | Up to 500 mm |
Specifications follow the official AirTAC MBL series datasheet. Confirm against the product label before installation. Standard stroke to 500 mm (special order to 800 mm). Thread options: PT / G / NPT.
Theoretical Output Force (Ø20mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 157 N | 132 N |
| 0.7 MPa | 220 N | — |
| Max (@1.0 MPa) | 32 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac MBL Aluminum Alloy Mini Cylinder MBL20X50SU
| MBL | Aluminum-barrel mini round cylinder, double acting. |
|---|---|
| 20 | Bore size in mm. |
| ×50 | Stroke length in mm. |
| -S | Optional built-in magnet for sensor position sensing. |
Related variants: MBLC (adjustable cushion), MBLD (double rod), MBLJ (adjustable stroke), MSBL/MTBL (single acting).
Where the Airtac MBL Aluminum Alloy Mini Cylinder MBL20X50SU Is Used
PCB Component Placement
Provides 157 N of push force at 0.5 MPa to precisely seat small electronic components onto printed circuit boards within dense pick-and-place machinery.
Packaging Flap Folding
Utilizes the 50mm stroke and U flat-end rigid mount to tuck and fold light cardboard packaging flaps at high cycling speeds on compact filling lines.
Lab Tube Ejection
Delivers precise 132 N pull force to eject filled microcentrifuge tubes from a testing carousel without risking glass breakage in tight lab automation.
Is the Airtac MBL Aluminum Alloy Mini Cylinder MBL20X50SU the Right Cylinder?
If you need less force, step down to the neighbouring 16mm bore (if available in your series) or evaluate your true load minimums. To step up, the next size is the 25mm bore, which provides 245 N push at 0.5 MPa. Choose the MBLC variant if your cycle speed requires an adjustable air cushion to absorb heavier kinetic energy. Because the U flat-end provides rigid mounting, ensure your mechanism is perfectly aligned to avoid binding.
This cylinder uses a G1/8 port and an M8x1.25 rod-end thread. The fixed rubber bumper softens end-of-stroke impact but does not lock the rod; if air pressure is lost or the valve is centred, the rod will drift and drop. Use an external pilot-operated check valve if the load must be held without live pressure.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT/NPT/G)
- ✓ Magnet (-S) for sensors?
- ✓ Side load — consider a guided cylinder
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Avoid side load on the piston rod.
- check Adjust end cushion screws for smooth stops.
- check Use correct mounting accessory (LB / FA / SDB) and back cover (CA pivot / U flat-end).
- check Installation by qualified personnel per AirTAC docs.
Airtac MBL Aluminum Alloy Mini Cylinder MBL20X50SU FAQ
At 0.5 MPa, the 20mm bore provides 157 N push and 132 N pull force. At 0.7 MPa, push increases to 220 N. The maximum theoretical force is 32 kgf at 1.0 MPa, with an operating pressure range of 0.15-1.0 MPa.
No, the base MBL20X50SU uses a fixed rubber bumper to soften end-stop impact. It does not have an adjustable cushion screw. If your application requires adjustable air cushioning for heavier loads, select the MBLC variant.
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