Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC50X20U
The AirTAC Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC50X20U is a genuine double-acting aluminum-barrel mini round cylinder with a Ø50mm bore and 20mm stroke, G1/4 air ports and a fixed rubber bumper. Its compact riveted body suits push, hold and clamp motion in tight machine spaces.
- BoreØ50 mm
- Stroke20 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM14×1.5
- CushionRubber bumper (MBLC variant: adjustable air cushion)
About the Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC50X20U
The AirTAC MBLC50X20U is a double-acting, 50 mm bore aluminum mini cylinder engineered for highly compact, short-stroke actuation. It produces 981 N of push force and 881 N of pull force at 0.5 MPa, ramping up to 1374 N push at 0.7 MPa. The 20 mm stroke is ideal for tight-stroke clamping or ejecting tasks where space is strictly limited. Unlike the base MBL, this MBLC variant features a screw-adjustable pneumatic cushion at both ends, allowing you to dial in end-of-stroke deceleration for rapid moves.
This specific configuration includes a U flat-end back cover for rigid, inline mounting. The riveted rolling-packed aluminum barrel keeps the body light and compact, while the 20 µm hard-chrome plated carbon-steel rod resists wear. Note that because this SKU lacks the -S suffix, it does not have a built-in magnet and cannot accept CMSG, DMSG, or EMSG position sensors. The heterogeneous two-way grease-retaining piston seal ensures lasting lubrication for its 30-800 mm/s operating speed range.
Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC50X20U Technical Specifications
| Model | Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC50X20U |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder |
| Bore size | Ø50 mm |
| Stroke | 20 mm |
| Acting type | Double acting |
| Port size | G1/4 |
| Rod thread | M14×1.5 |
| 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 (Ø50mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 982 N | 881 N |
| 0.7 MPa | 1374 N | — |
| Max (@1.0 MPa) | 200 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 MBLC50X20U
| MBL | Aluminum-barrel mini round cylinder, double acting. |
|---|---|
| 50 | Bore size in mm. |
| ×20 | 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 MBLC50X20U Is Used
Package Ejector
Provides 981 N of push at 0.5 MPa to rapidly eject cartons from a packaging conveyor, with the tuned cushion absorbing the abrupt 20 mm stroke stop.
Press Stamper
Delivers short-stroke stamping force for small metal brackets in an electronics assembly line, using the adjustable needle to prevent end-cover shock on fast retracts.
Pallet Stopper
Acts as a compact rigid stopper for lightweight pallets in a routing station, locking position mechanically via the U flat-end cover while air drives the 16 mm rod.
Is the Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC50X20U the Right Cylinder?
For sizing context, stepping down to the 40 mm bore drops the 0.5 MPa push force to 628 N, while stepping up to the 63 mm bore increases it to 1558 N. Choose this MBLC over the fixed-bumper MBL when your short, 20 mm stroke cycles at high frequency and the rapid mass shifts would otherwise hammer the end covers. Because this is a flat-end U cover, it handles rigid thrust; if your load arcs, pivot mounts like CA or SDB are needed. Note that the adjustable air cushion only decelerates the piston near the stroke ends—it is not a brake or load lock. If you need to hold position without live air, add an external rod lock or pilot-operated check valve. The replacement match is: 50 mm bore, 20 mm stroke, G1/4 port, PT thread, U back cover, no 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 MBLC50X20U FAQ
At 0.5 MPa, this 50 mm bore cylinder provides 981 N of push force and 881 N of pull force. At 0.7 MPa, the push force is 1374 N. The maximum theoretical force is 200 kgf at 1.0 MPa.
The MBLC50X20U uses a screw-tunable pneumatic needle at both ends to trap and exhaust air smoothly as the piston nears stroke limits. You adjust it to match your load and speed, which decelerates the rod to prevent impact damage on high-frequency short strokes. It only decelerates near the ends and does not lock or hold the load without air pressure.
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