Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC20X225U
The AirTAC Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC20X225U is a genuine double-acting aluminum-barrel mini round cylinder with a Ø20mm bore and 225mm 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
- Stroke225 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 MBLC20X225U
The AirTAC MBLC20X225U is a double-acting aluminum mini cylinder with a 20mm bore and 225mm stroke, delivering 157N push and 132N pull force at 0.5MPa. It features a screw-adjustable pneumatic cushion at both ends, decelerating the piston smoothly near stroke limits to cut impact shock on faster moves. The U suffix denotes a rigid flat-end back cover for straight-line thrust. This SKU lacks a built-in magnet, so it cannot mount a CMSG, DMSG or EMSG position sensor.
Built around a riveted rolling-packed aluminum barrel for compactness, the Ø8mm carbon-steel rod has 20um hard-chrome plating to resist wear. A heterogeneous two-way grease-retaining piston seal keeps friction low. The G1/8 port matches the small 20mm bore volume, and the rod-end thread is M8x1.25.
Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC20X225U Technical Specifications
| Model | Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC20X225U |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder |
| Bore size | Ø20 mm |
| Stroke | 225 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 MBLC20X225U
| MBL | Aluminum-barrel mini round cylinder, double acting. |
|---|---|
| 20 | Bore size in mm. |
| ×225 | 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 MBLC20X225U Is Used
PCB Drill Bit Changer
Extends a tool carousel at 225mm to swap small drill bits in PCB routing machines, using the adjustable cushion to halt the 157N thrust smoothly without jarring the spindle.
Wafer Cassette Ejector
Pushes silicon wafer cassettes out of a loading bay in semiconductor tools, where the compact 20mm body fits tight cleanroom frames and the cushion softens the ejection stop.
Pharmacy Tray Sorter
Actuates a diverter arm in pharmaceutical packaging lines to route filled blister trays, relying on the 132N pull force to retract the arm within the machine footprint.
Is the Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC20X225U the Right Cylinder?
If you need less force, the smaller 20mm bore is already the lightest standard size. Stepping up to the 25mm bore raises push force to 245N at 0.5MPa, which is better if this 225mm stroke must shift a heavier payload. Choose this MBLC over the base MBL when cycle speeds are high enough that a fixed rubber bumper would wear prematurely or cause end-cover impact noise. Remember the air cushion only decelerates near the ends; it is not a lock, so the rod will drift if air is lost.
For a direct replacement, match the 20mm bore, 225mm stroke, G1/8 port, PT thread, U flat-end back cover, and no magnet. At 225mm, the small Ø8mm rod has limited side-load tolerance; use an external guide rail to prevent rod bending on arcing or offset loads.
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 MBLC20X225U FAQ
At 0.5MPa it provides 157N push and 132N pull. At 0.7MPa it provides 220N push and 185N pull. The theoretical maximum is 32kgf at 1.0MPa.
A screw needle at each end traps exhaust air to decelerate the piston before it hits the cover, reducing shock and noise on fast cycles. It is tuned to match the load and speed, but it is not a brake and does not hold position. This MBLC20X225U has no magnet, so it cannot use a sensor switch.
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1-Year Warranty
Covers non-human-caused product damage.
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Standard models usually ship in 3-4 days.
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