Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC20X250U
The AirTAC Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC20X250U is a genuine double-acting aluminum-barrel mini round cylinder with a Ø20mm bore and 250mm 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
- Stroke250 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 MBLC20X250U
The AirTAC MBLC20X250U is a compact double-acting aluminum mini cylinder engineered for a 250 mm stroke. It delivers 157 N of push force and 132 N of pull force at 0.5 MPa. Unlike the base MBL, this variant features a screw-adjustable pneumatic air cushion at both stroke ends, allowing you to precisely tune the end-of-stroke deceleration to protect components during rapid cycling.
This SKU utilizes a G1/8 port and an Ø8 mm carbon-steel rod with 20 µm hard-chrome plating to resist wear. Because this specific configuration lacks the -S suffix, it is built without a magnet and cannot accept CMSG, DMSG, or EMSG position sensors. The riveted rolling-packed aluminum barrel keeps the body light and compact, while the U flat-end back cover provides rigid rear mounting for straightforward installations.
Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC20X250U Technical Specifications
| Model | Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC20X250U |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder |
| Bore size | Ø20 mm |
| Stroke | 250 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 MBLC20X250U
| MBL | Aluminum-barrel mini round cylinder, double acting. |
|---|---|
| 20 | Bore size in mm. |
| ×250 | 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 MBLC20X250U Is Used
PCB Conveyor Diversion
Uses the 250 mm stroke to push printed circuit boards between parallel conveyor lanes, relying on the adjustable cushion to stop the 157 N thrust gently without jarring delicate solder joints.
Light-Parts Ejector
Ejects small plastic mouldings from a packaging machine, where the tunable end-of-stroke deceleration prevents the lightweight components from bouncing off the collection chute.
Sensor Bracket Indexing
Extends a testing probe bracket across a 250 mm gap in an electronics test station, benefiting from the compact riveted aluminum body to fit within tight enclosure clearances.
Is the Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC20X250U the Right Cylinder?
Select this 20 mm bore when an application requires a long 250 mm travel distance but limited output force is needed. If your project demands less thrust, no smaller standard MBL/MBLC bore exists in this series. If you need greater power, stepping up to the 25 mm bore increases push force to 245 N at 0.5 MPa. Choose the MBLC over the fixed-bumper MBL when operating at high speeds where impact deceleration is critical.
At 250 mm of stroke, the small Ø8 mm rod is highly susceptible to side-load bending. To prevent premature seal failure, pair this cylinder with an external linear guide, or pivot the mounting using a CA or SDB bracket to accommodate arcing loads. This SKU uses a PT port thread, an M8x1.25 rod-end thread, and a U flat-end back cover. Note that the adjustable air cushion only decelerates the piston near the ends; it is not a brake and will not hold the load if air pressure is lost.
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 MBLC20X250U FAQ
This 20 mm bore cylinder uses an Ø8 mm rod with an M8x1.25 rod-end thread and a G1/8 port. It generates 157 N push and 132 N pull at 0.5 MPa, 220 N push at 0.7 MPa, and reaches a maximum theoretical force of 32 kgf at 1.0 MPa.
No. Because the model code lacks the -S suffix, this specific SKU is manufactured without a built-in piston magnet. It cannot trigger AirTAC CMSG, DMSG, or EMSG sensor switches. If position detection is required, you must order the -S magnet variant.
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