Airtac MBL Aluminum Alloy Mini Cylinder MBL20X75SU
The AirTAC Airtac MBL Aluminum Alloy Mini Cylinder MBL20X75SU is a genuine double-acting aluminum-barrel mini round cylinder with a Ø20mm bore and 75mm 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
- Stroke75 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 MBL20X75SU
The AirTAC MBL20X75SU is a compact double-acting aluminum mini round cylinder engineered for tight machine spaces. Generating 157 N of push force and 132 N of pull force at 0.5 MPa, it is built for small-part handling. This 75 mm stroke SKU includes a built-in magnet (-S) for non-contact position detection using CMSG reed or DMSG/EMSG electronic switches. The U suffix denotes a flat-end back cover for rigid, fixed mounting.
Unlike tie-rod cylinders, this unit uses a riveted rolling-packed aluminum barrel where the covers are crimped to the tube, keeping weight low and footprint small. Inside, a heterogeneous two-way piston seal retains grease for long service life, while the Ø8 mm carbon-steel piston rod features 20 um hard-chrome plating to resist wear and corrosion. The base end relies on a fixed rubber bumper to soften end-of-stroke impact, meaning it lacks the adjustable air cushion found on the MBLC variant.
Airtac MBL Aluminum Alloy Mini Cylinder MBL20X75SU Technical Specifications
| Model | Airtac MBL Aluminum Alloy Mini Cylinder MBL20X75SU |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder |
| Bore size | Ø20 mm |
| Stroke | 75 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 MBL20X75SU
| MBL | Aluminum-barrel mini round cylinder, double acting. |
|---|---|
| 20 | Bore size in mm. |
| ×75 | 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 MBL20X75SU Is Used
PCB Depaneling Router
Provides 157 N of push force at 0.5 MPa to actuate the cutting blade carriage on a depaneling router, fitting neatly within the machine's compact frame.
IC Test Handler Ejection
Uses the built-in magnet to trigger a DMSG solid-state sensor, confirming the 75 mm stroke has fully ejected a tested integrated circuit from its test socket.
Tray Sealing Press
Applies 132 N of pull force at 0.5 MPa to lift the heated platen of a small food packaging tray sealer, with the U flat-end cover providing rigid rear support.
Is the Airtac MBL Aluminum Alloy Mini Cylinder MBL20X75SU the Right Cylinder?
For lower force needs, stepping down is not an option as 20 mm is the smallest MBL bore. If your application requires more power, the 25 mm bore provides 245 N of push force at 0.5 MPa. Choose the MBLC variant if your cycle times demand adjustable air cushioning, or the MSBL/MTBL single-acting versions if you only need spring-return push or pull. Keep in mind that a plain MBL does not hold its load when air pressure is lost or the valve is centered; the rod will drift. Use an external rod lock or pilot-operated check valve if position holding is critical.
Replacement match: 20 mm bore, 75 mm stroke, G1/8 port, PT thread, U flat-end back cover, built-in magnet for CMSG/DMSG/EMSG sensors.
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 MBL20X75SU FAQ
At 0.5 MPa, this 20 mm bore cylinder provides 157 N of push force and 132 N of pull force. At 0.7 MPa, the push force increases to 220 N. The maximum theoretical force is 32 kgf at 1.0 MPa, which is the upper limit of its 0.15-1.0 MPa operating pressure range.
No, the base MBL20X75SU uses a fixed rubber bumper to absorb end-of-stroke impact, not an adjustable cushion screw. If your application requires adjustable air cushioning for heavier or faster moving loads, you should select the MBLC variant instead.
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