Airtac MBL Aluminum Alloy Mini Cylinder MBL32X20U
The AirTAC Airtac MBL Aluminum Alloy Mini Cylinder MBL32X20U is a genuine double-acting aluminum-barrel mini round cylinder with a Ø32mm bore and 20mm stroke, G1/8 air ports and a fixed rubber bumper. Its compact riveted body suits push, hold and clamp motion in tight machine spaces.
- BoreØ32 mm
- Stroke20 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- CushionRubber bumper (MBLC variant: adjustable air cushion)
About the Airtac MBL Aluminum Alloy Mini Cylinder MBL32X20U
The AirTAC MBL32X20U is a compact double-acting aluminum mini round cylinder engineered for tight machine spaces. It delivers 402 N of push force and 346 N of pull force at 0.5 MPa, making it ideal for short 20 mm clamping or ejection movements. The riveted rolling-packed barrel permanently crimps the front and rear covers to the tube, yielding a lightweight body that is not designed to be disassembled like a tie-rod unit.
This specific SKU features a U flat-end back cover for rigid, fixed mounting. Because it lacks the -S suffix, a position sensor cannot be fitted to this cylinder. Instead of an adjustable cushion, the base MBL relies on a fixed rubber bumper to soften end-of-stroke impacts. The heterogeneous two-way piston seal actively retains grease, and the carbon-steel rod features 20 µm hard-chrome plating for wear and corrosion resistance.
Airtac MBL Aluminum Alloy Mini Cylinder MBL32X20U Technical Specifications
| Model | Airtac MBL Aluminum Alloy Mini Cylinder MBL32X20U |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder |
| Bore size | Ø32 mm |
| Stroke | 20 mm |
| Acting type | Double acting |
| Port size | G1/8 |
| Rod thread | M10×1.25 |
| 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 (Ø32mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 402 N | 346 N |
| 0.7 MPa | 563 N | — |
| Max (@1.0 MPa) | 82 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 MBL32X20U
| MBL | Aluminum-barrel mini round cylinder, double acting. |
|---|---|
| 32 | Bore size in mm. |
| ×20 | 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 MBL32X20U Is Used
PCB Router Fixturing
Uses the 402 N push force at 0.5 MPa to lock small printed circuit boards into place during a high-speed routing process.
Connector Insertion
Executes a precise 20 mm stroke to press pin headers into plastic housings without damaging delicate electronic components.
Carton Flap Tucking
Tucks small packaging flaps on a compact filling line where the short stroke and rigid U flat-end cover provide reliable actuation.
Is the Airtac MBL Aluminum Alloy Mini Cylinder MBL32X20U the Right Cylinder?
If you need slightly less force, stepping down to the 25 mm bore yields 245 N push at 0.5 MPa. For heavier lifting, the 40 mm bore provides 628 N push at 0.5 MPa. Since this MBL32X20U has a U flat-end back cover, it suits rigid straight-line pushes, whereas an arcing load would require the CA pivot variant. Remember that a plain MBL does not hold its load when air pressure is lost or exhausted; the rod drifts. Use an external rod lock or pilot-operated check valve if position must be maintained without live pressure. For exact replacement matching, specify: 32 mm bore, 20 mm stroke, G1/8 port, PT thread, U flat-end back cover, no magnet, and no mounting accessory.
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 MBL32X20U FAQ
At 0.5 MPa, the push force is 402 N and the pull force is 346 N. At 0.7 MPa, the push force is 563 N. The maximum theoretical force is 82 kgf at 1.0 MPa.
No. The base MBL uses a fixed rubber bumper, not an adjustable air cushion; for adjustable cushioning, choose the MBLC variant. Additionally, this specific SKU lacks the -S magnet suffix, so CMSG, DMSG, or EMSG sensor switches cannot be fitted.
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