Airtac MBL Aluminum Alloy Mini Cylinder MBL20X80U
The AirTAC Airtac MBL Aluminum Alloy Mini Cylinder MBL20X80U is a genuine double-acting aluminum-barrel mini round cylinder with a Ø20mm bore and 80mm 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
- Stroke80 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 MBL20X80U
The AirTAC MBL20X80U is a compact double-acting aluminum mini round cylinder engineered for tight machine spaces. With a 20mm bore and 80mm stroke, it generates 157 N of push force and 132 N of pull force at 0.5 MPa. It is a genuine AirTAC component built for reliable small-part automation.
This model features a rigid U flat-end back cover for straightforward fixed mounting. The riveted rolling-packed barrel crimps the covers directly to the tube, creating a lightweight, space-saving assembly that is not designed to be disassembled like a traditional tie-rod cylinder. The Ø8 mm carbon-steel piston rod features 20 um hard-chrome plating for wear resistance, and a heterogeneous two-way piston seal retains grease for long service life. Because this SKU lacks the -S suffix, it has no internal magnet and cannot accept a CMSG, DMSG, or EMSG position sensor. End-of-stroke deceleration is handled by a fixed rubber bumper, not an adjustable cushion.
Airtac MBL Aluminum Alloy Mini Cylinder MBL20X80U Technical Specifications
| Model | Airtac MBL Aluminum Alloy Mini Cylinder MBL20X80U |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder |
| Bore size | Ø20 mm |
| Stroke | 80 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 MBL20X80U
| MBL | Aluminum-barrel mini round cylinder, double acting. |
|---|---|
| 20 | Bore size in mm. |
| ×80 | 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 MBL20X80U Is Used
PCB Test Handlers
Drives the fine 80mm stroke to press electrical test probes onto populated circuit boards, utilizing the 157 N push force at 0.5 MPa without damaging delicate components.
Packaging Flap Folders
Actuates small cardboard flap folders on compact sealing lines where the lightweight aluminum body and 132 N pull force easily clear the material out of the way.
Microfluidic Valve Indexing
Shifts small rotary selector valves in lab diagnostic equipment, fitting into cramped chassis spaces where larger profile cylinders cannot physically fit.
Is the Airtac MBL Aluminum Alloy Mini Cylinder MBL20X80U the Right Cylinder?
If you need slightly less force, the next size down is not available in this mini series, but if you need more power, stepping up to the 25mm bore provides 245 N push at 0.5 MPa. For applications requiring adjustable end-of-stroke cushioning to handle heavier moving masses at faster speeds, specify the MBLC variant instead of the base MBL.
This MBL20X80U configuration uses a G1/8 port with a default PT thread, an 8 mm rod with an M8x1.25 rod-end thread, and a U flat-end back cover. Remember that a plain MBL does not hold its position or load when air pressure is lost or the valve is centered; the rod will drift. The rubber bumper only softens end-of-stroke impact and is not a locking mechanism. If position holding without live pressure is required, add an external rod lock or a pilot-operated check valve.
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 MBL20X80U FAQ
At 0.5 MPa, the MBL20X80U provides 157 N push and 132 N pull. At 0.7 MPa, the push force is 220 N, with a maximum theoretical force of 32 kgf at 1.0 MPa. The operating speed range is 30-800 mm/s.
No, the base MBL uses a fixed rubber bumper to soften end-of-stroke impact and does not have an adjustable cushion screw (use the MBLC variant for adjustable air cushioning). Additionally, this specific SKU lacks the -S magnet, so it cannot accept CMSG, DMSG, or EMSG electronic position switches.
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