Airtac MBL Aluminum Alloy Mini Cylinder MBL20X50U
The AirTAC Airtac MBL Aluminum Alloy Mini Cylinder MBL20X50U 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 MBL20X50U
The AirTAC MBL20X50U is a genuine double-acting aluminum mini round cylinder engineered for tight machine spaces. It delivers 157 N of push force and 132 N of pull force at 0.5 MPa, making it ideal for moving small jigs or light sub-assemblies over a 50 mm stroke. The U suffix denotes a rigid flat-end rear cover for direct, fixed mounting.
Unlike tie-rod ISO 6432 bodies, this unit features a riveted rolling-packed aluminum barrel that crimps the front and rear covers to the tube, permanently sealing the lightweight body. It relies on a fixed rubber bumper to soften end-of-stroke impacts rather than an adjustable cushion screw. Because this specific SKU lacks the -S magnet suffix, it cannot accept a CMSG, DMSG, or EMSG position sensor switch.
Airtac MBL Aluminum Alloy Mini Cylinder MBL20X50U Technical Specifications
| Model | Airtac MBL Aluminum Alloy Mini Cylinder MBL20X50U |
|---|---|
| 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 MBL20X50U
| 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 MBL20X50U Is Used
PCB Router Z-Axis Gate
Actuates a small dust-extraction nozzle over a PCB routing spindle, using the 157 N push force to lower the hood precisely when cutting begins.
Vial Sorting Diverter
Pushes a 50 mm stroke diverter arm to route pharmaceutical glass vials into a rejection chute without shattering the lightweight containers.
Socket Test Clamp
Drives a low-profile clamping jaw against electronic test sockets, applying 132 N of pull force to hold components securely during continuity checks.
Is the Airtac MBL Aluminum Alloy Mini Cylinder MBL20X50U the Right Cylinder?
At 0.5 MPa, the 20 mm bore provides 157 N of push force. If your assembly requires less force, note that this is the smallest available MBL size, so you would need to reduce air pressure. If you need more power, stepping up to the 25 mm bore yields 245 N of push force. For end-of-stroke energy absorption on faster cycles, choose the MBLC variant, which replaces the fixed rubber bumper with an adjustable air cushion.
This MBL20X50U configuration features a 50 mm stroke, a G1/8 port, PT tapered threading, and a U flat-end back cover. It does not hold its load if air pressure drops—the rod will drift. Use an external pilot-operated check valve if you need position holding. Additionally, because this SKU has no -S magnet, you cannot mount a position sensor on it.
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 MBL20X50U FAQ
At 0.5 MPa, the 20 mm bore provides 157 N of push force and 132 N of pull force. At 0.7 MPa, push increases to 220 N. The maximum theoretical force is 32 kgf at 1.0 MPa. The double-acting speed range is 30-800 mm/s.
No. Because this SKU lacks the -S suffix, it has no internal magnet and cannot accept CMSG, DMSG, or EMSG sensor switches. Additionally, the base MBL uses a fixed rubber bumper at the end of the stroke; for adjustable air cushioning, you must specify the MBLC variant.
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