Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC50X25U
The AirTAC Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC50X25U is a genuine double-acting aluminum-barrel mini round cylinder with a Ø50mm bore and 25mm 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
- Stroke25 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 MBLC50X25U
The AirTAC MBLC50X25U is a double-acting aluminum mini cylinder engineered for compact spaces requiring substantial force, delivering 981 N push and 881 N pull at 0.5 MPa. Its defining feature is a screw-adjustable pneumatic cushion at both ends, decelerating the piston smoothly near the stroke limits to reduce impact and vibration. The U code specifies a rigid flat-end back cover for direct mounting. This 25 mm stroke suits short, high-impact clamping or ejection moves.
Unlike the base MBL which relies on a fixed rubber bumper, this MBLC variant allows you to tune the end-of-stroke deceleration to match heavier loads or faster cycle speeds. It features a riveted rolling-packed aluminum barrel for a lightweight yet durable body, and a carbon-steel rod with 20 µm hard-chrome plating to resist wear. Note that because this SKU lacks the -S magnet code, it cannot accept a CMSG, DMSG, or EMSG position sensor.
Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC50X25U Technical Specifications
| Model | Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC50X25U |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder |
| Bore size | Ø50 mm |
| Stroke | 25 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 MBLC50X25U
| MBL | Aluminum-barrel mini round cylinder, double acting. |
|---|---|
| 50 | Bore size in mm. |
| ×25 | 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 MBLC50X25U Is Used
Injection Mold Ejection
Provides a robust 981 N push at 0.5 MPa to eject plastic parts from tight mold spaces, using the adjustable cushion to silently absorb the sudden end-of-stroke impact on fast cycle runs.
Packaging Line Diverter
Uses the short 25 mm stroke to rapidly divert heavy cartons on a conveyor, where the tunable pneumatic cushion prevents the rigid U flat-end cover from cracking under repeated high-speed impacts.
PCB Test Fixture Clamping
Secures densely packed electronic boards for automated testing, applying 881 N of pull force at 0.5 MPa while the compact riveted aluminum body fits seamlessly into tight test cell enclosures.
Is the Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC50X25U the Right Cylinder?
At 0.5 MPa, this 50 mm bore generates 981 N of push force. If your application requires less force, stepping down to the 40 mm bore yields 628 N, while stepping up to the 63 mm bore provides 1558 N. Choose this MBLC cushioned version over the fixed-bumper MBL when your machine cycles at high frequency or moves a heavier mass that would prematurely wear out a rubber absorber. The standard PT tapered port and M14x1.5 rod-end thread match the 50 mm bore specification.
Keep in mind that the adjustable air cushion only decelerates the piston near the end of travel; it is not a brake or load lock. If your system loses air pressure or the valve centers, the rod will drift or drop. For position holding without live air, you must integrate an external rod lock or pilot-operated check valve.
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 MBLC50X25U FAQ
This double-acting 50 mm bore cylinder delivers 981 N push and 881 N pull at 0.5 MPa, 1374 N push at 0.7 MPa, and a maximum theoretical output of 200 kgf at 1.0 MPa. It uses a G1/4 port, a Ø16 mm carbon-steel rod with M14x1.5 rod-end thread, and operates at speeds of 30-800 mm/s.
The screw-adjustable pneumatic cushion at both ends allows you to fine-tune the deceleration rate to match your specific load and speed, drastically cutting end-cover impact, noise, and vibration compared to a fixed bumper. However, the cushion only slows the piston near the stroke ends; it does not lock or hold position if air is lost or the valve centers.
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