Airtac MBL Aluminum Alloy Mini Cylinder MBL20X80SU
The AirTAC Airtac MBL Aluminum Alloy Mini Cylinder MBL20X80SU 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 MBL20X80SU
The AirTAC MBL20X80SU is a compact double-acting aluminum mini round cylinder engineered for tight machine spaces. At 0.5 MPa it generates 157 N of push force and 132 N of pull force, making this 80 mm stroke variant well suited for small-part ejection or lightweight gating. The riveted rolling-packed barrel crimps the front and rear covers directly to the tube, yielding a lightweight footprint that is not designed to be disassembled like a traditional tie-rod body.
This specific SKU includes a U flat-end back cover for rigid rear mounting and a built-in -S magnet. The magnet enables position detection using AirTAC CMSG reed or DMSG and EMSG solid-state sensor switches. Inside, a heterogeneous two-way piston seal retains grease for long service life, while the Ø8 mm carbon-steel rod features 20 um hard-chrome plating to resist wear and corrosion. The base end-of-stroke deceleration relies on a fixed rubber bumper, not an adjustable cushion screw.
Airtac MBL Aluminum Alloy Mini Cylinder MBL20X80SU Technical Specifications
| Model | Airtac MBL Aluminum Alloy Mini Cylinder MBL20X80SU |
|---|---|
| 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 MBL20X80SU
| 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 MBL20X80SU Is Used
PCB Router Dust Gate
Uses the 157 N push force at 0.5 MPa to open and close a small protective dust gate on a PCB depaneling router, fitting neatly into the tight electronics cell envelope.
Carton Label Applicator
Extends 80 mm to tamp labels onto small packaging boxes, where the U flat-end back cover provides a rigid stationary mount for the labeling head assembly.
Tester Contact Probe
Moves a small functional test probe onto microchips with high cycle speed, tracking the exact extend position via a DMSG solid-state sensor switch mounted to the -S magnet body.
Is the Airtac MBL Aluminum Alloy Mini Cylinder MBL20X80SU the Right Cylinder?
If your application requires less force, stepping down to the neighbouring 20 mm bore is not an option, but moving to a smaller mini cylinder design would be necessary; conversely, stepping up to the 25 mm bore yields 245 N of push force at 0.5 MPa. Choose the MBLC variant if your cycle speed requires adjustable air cushioning to soften end-of-stroke impacts. Because this is a double-acting cylinder, air drives the rod in both directions.
The fixed rubber bumper softens end impacts but does not lock the rod. If pressure is lost or the valve is centered, the load will drift or drop, so an external rod lock or pilot-operated check valve is required to hold position. This MBL20X80SU configuration features a 20 mm bore, 80 mm stroke, G1/8 port, PT thread, U flat-end back cover, and an S magnet for sensor tracking.
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 MBL20X80SU FAQ
This 20 mm bore cylinder provides 157 N push and 132 N pull at 0.5 MPa, 220 N push at 0.7 MPa, and a maximum theoretical force of 32 kgf at 1.0 MPa. It operates at a speed range of 30-800 mm/s.
No, the base MBL20X80SU uses a fixed rubber bumper to soften end impacts and lacks an adjustable cushion screw. If you need adjustable air cushioning for heavier or faster moving loads, you must select the MBLC variant.
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