Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC20X225SU
The AirTAC Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC20X225SU 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 MBLC20X225SU
The AirTAC MBLC20X225SU is a compact double-acting aluminum mini cylinder featuring a 20mm bore and 225mm stroke. It delivers 157N of push force and 132N of pull force at 0.5 MPa, making it suited for light-duty positioning tasks. A defining feature of this MBLC series is the screw-adjustable pneumatic cushion at both ends, which decelerates the piston smoothly near stroke completion to cut impact shock on faster cycles. Unlike the base MBL which relies on a fixed rubber bumper, this needle-tuned cushion lets you dial in end-of-stroke deceleration to match the load and speed.
This specific configuration includes a built-in magnet (the -S code) for use with AirTAC CMSG, DMSG, and EMSG sensor switches to detect rod position, along with a U flat-end back cover for rigid mounting. The riveted rolling-packed aluminum barrel keeps the body light and compact for tight spaces, while the heterogeneous two-way grease-retaining piston seal works alongside the 20-micron hard-chrome plated carbon-steel rod to ensure low-friction, long-life operation.
Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC20X225SU Technical Specifications
| Model | Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC20X225SU |
|---|---|
| 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 MBLC20X225SU
| 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 MBLC20X225SU Is Used
PCB Component Placement
Drives a light pick-and-place head moving electronic chips across a 225mm travel path, using the adjustable cushion to stop smoothly without disturbing delicate solder joints.
Small-Part Diverting
Actuates a routing flap on a packaging conveyor, where the 157N push force at 0.5 MPa is sufficient to redirect small cardboard boxes while the cushion dampens the 225mm stroke end.
Sensor Testing Jig
Stages a MEMS sensor testing probe over a 225mm range, relying on the built-in magnet and DMSG electronic switch for precise position confirmation before measurement.
Is the Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC20X225SU the Right Cylinder?
When sizing this 20mm bore model, you can step down to the smaller 16mm bore variants for lighter loads, or step up to the 25mm bore size which provides 245N of push force at 0.5 MPa if your application requires more thrust. Choose the MBLC over the standard MBL when your cycle speeds are high enough that the fixed rubber bumper would wear prematurely or cause excessive vibration. The 225mm stroke on this 8mm rod means side-load tolerance is inherently low; for longer strokes, you should use an external guide rail, a pivot bracket, or consider the MBLD double-rod type to prevent rod bending. This SKU uses a G1/8 port, M8x1.25 rod-end thread, PT thread form, and a U flat-end back cover. It does not hold position if air pressure is lost, as the air cushion only decelerates near the ends and acts as neither a lock nor a brake.
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 MBLC20X225SU FAQ
At 0.5 MPa it provides 157N push and 132N pull force; at 0.7 MPa it provides 220N push and 185N pull. The maximum theoretical force is 32 kgf at 1.0 MPa. This 20mm bore cylinder uses a G1/8 port, an 8mm rod, and an M8x1.25 rod-end thread.
The cushion is a screw-tunable needle valve at both ends of the cylinder that traps a small amount of exhaust air to decelerate the piston before it hits the end cover. This allows you to fine-tune the stopping speed for heavier loads or faster cycle rates, significantly reducing impact noise and end-cover wear compared to a fixed rubber bumper. It is a deceleration device, not a load lock.
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