Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC20X80U
The AirTAC Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC20X80U 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 MBLC20X80U
The AirTAC MBLC20X80U is a double-acting aluminum mini cylinder engineered for compact actuation, delivering 157 N of push force and 132 N of pull force at 0.5 MPa. Its 80 mm stroke is well-suited for short-travel positioning tasks where spatial footprint is restricted. Unlike the base MBL series, this variant features a screw-adjustable pneumatic air cushion at both stroke ends, allowing you to dial in end-of-stroke deceleration to protect the end covers during faster or more frequent cycles.
This model features a U flat-end back cover for rigid mounting and a standard PT tapered port thread. It utilizes a riveted rolling-packed aluminum barrel for a lightweight yet durable construction, rather than a rebuildable tie-rod design. The Ø8 mm carbon-steel rod features 20 µm hard-chrome plating paired with a heterogeneous two-way grease-retaining piston seal for sustained friction control. Note that this specific SKU lacks a built-in magnet, meaning it cannot support CMSG, DMSG, or EMSG electronic position sensors.
Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC20X80U Technical Specifications
| Model | Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC20X80U |
|---|---|
| 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 MBLC20X80U
| 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 MBLC20X80U Is Used
Electronic Component Testing
Drives a short 80 mm stroke probe station to test PCBs, using the adjustable cushion to softly land the 157 N push force without damaging delicate contacts.
Packaging Diverters
Actuates a small flap gate on a packaging conveyor, relying on the compact 20 mm bore and G1/8 porting to fit within tight machine guarding.
Pick-and-Place Ejectors
Powers a pneumatic ejector arm for small SMD tape-and-reel feeding, where the U flat-end rear mounting provides a rigid anchor for high-frequency cycling.
Is the Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC20X80U the Right Cylinder?
The 20 mm bore provides 157 N push force at 0.5 MPa, making it ideal for low-mass moves. If you need less force, the next size down is the 12 mm bore (not part of the MBLC range), so 20 mm is the smallest available option. If your payload is heavier, stepping up to the 25 mm bore yields 245 N of push force at 0.5 MPa. Choose this MBLC cushioned version over the fixed rubber bumper MBL when your application runs at higher speeds or cycles frequently and requires smooth deceleration to minimize impact and vibration. Remember that the adjustable air cushion only decelerates the piston near the stroke ends; it is not a brake and will not hold the load if air pressure is lost or the valve centers.
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 MBLC20X80U FAQ
At 0.5 MPa, this 20 mm bore cylinder provides 157 N push and 132 N pull force. At 0.7 MPa, it provides 220 N push and 185 N pull. The maximum theoretical force is 32 kgf at 1.0 MPa. It operates on filtered air at 0.15-1.0 MPa with a speed range of 30-800 mm/s.
The MBLC20X80U has a screw-tunable needle at both ends that traps a pocket of exhaust air to decelerate the piston smoothly before it hits the end cover. You adjust the needle to match your load and speed, which reduces impact noise and vibration. It is strictly an end-of-stroke deceleration device, not a load-holding brake.
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1-Year Warranty
Covers non-human-caused product damage.
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