Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC20X80SU
The AirTAC Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC20X80SU 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 MBLC Aluminum Alloy Mini Air Cylinder MBLC20X80SU
The AirTAC MBLC20X80SU is a double-acting aluminum mini cylinder with a 20mm bore and 80mm stroke. It generates 157N of push force and 132N of pull force at 0.5MPa. Unlike the base MBL, this variant uses a screw-adjustable pneumatic cushion at both stroke ends to smoothly decelerate the piston, reducing impact stress on the end covers during faster cycling. The 80mm stroke provides a compact extension length ideal for tight machinery layouts.
This model includes a built-in magnet (-S) for compatibility with AirTAC CMSG, DMSG, and EMSG sensor switches to track rod position. It features a rigid U flat-end back cover and a riveted rolling-packed aluminum barrel for a lightweight yet durable construction. The 8mm carbon-steel rod has 20um hard-chrome plating, and the heterogeneous two-way grease-retaining piston seal maintains lubrication over a 30-800mm/s speed range.
Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC20X80SU Technical Specifications
| Model | Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC20X80SU |
|---|---|
| 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 MBLC Aluminum Alloy Mini Air Cylinder MBLC20X80SU
| 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 MBLC Aluminum Alloy Mini Air Cylinder MBLC20X80SU Is Used
PCB Router Gating
Controls the pick-and-place nozzle gate on a PCB depaneling router, using the 80mm stroke and 157N force to route boards precisely while the cushion prevents sensor-jarring impacts at 800mm/s.
Bottle Diverter Arm
Actuates a lightweight swing arm on a packaging conveyor to divert small plastic bottles, relying on the tunable cushion to quietly stop the load without bouncing product.
Micro-Clamp Release
Opens and closes a secondary micro-clamp on an electronics assembly fixture, where the compact 20mm barrel fits between dense tooling and the magnet confirms full release to the PLC.
Is the Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC20X80SU the Right Cylinder?
At 157N push force (0.5MPa), stepping down requires a custom solution as 20mm is the smallest available bore in this series. Stepping up to the 25mm bore increases push force to 245N if your payload requires more authority. Choose this MBLC over the standard MBL when operating speeds are high enough that the fixed rubber bumper would cause excessive wear or noise. The U flat-end back cover provides rigid linear mounting; use a CA pivot cover if your load requires arcing motion. Note that the adjustable air cushion only decelerates the piston near the ends and does not lock the rod; if you need position holding without continuous air supply, install an external rod lock. For replacement matching, verify the 20mm bore, 80mm stroke, G1/8 port, PT thread, U back cover, and -S magnet.
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 MBLC Aluminum Alloy Mini Air Cylinder MBLC20X80SU FAQ
At 0.5MPa, the push force is 157N and the pull force is 132N. At 0.7MPa, the push force is 220N. The theoretical maximum force is 32kgf at 1.0MPa operating pressure.
A screw-tunable needle valve at each end cover traps a pocket of exhaust air to decelerate the piston smoothly before it strikes the cover. You adjust the needle to match your specific load and speed, which cuts impact noise and vibration—unlike a non-adjustable fixed rubber bumper. It only decelerates near the ends and does not function as a load lock or brake.
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Standard models usually ship in 3-4 days.
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