Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC50X40U
The AirTAC Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC50X40U is a genuine double-acting aluminum-barrel mini round cylinder with a Ø50mm bore and 40mm 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
- Stroke40 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 MBLC50X40U
The AirTAC MBLC50X40U is a double-acting aluminum mini cylinder engineered for compact power, delivering 981 N of push force and 881 N of pull force at 0.5 MPa. A 40 mm stroke provides rapid, short-travel positioning for heavier payloads. Unlike the base MBL series, this variant incorporates a screw-adjustable pneumatic cushion at both ends, allowing you to fine-tune end-of-stroke deceleration and prevent end-cover impact on dynamic moves.
Built with a riveted rolling-packed aluminum barrel, the body remains exceptionally light for tight machine layouts. The 20 µm hard-chrome plated carbon-steel rod pairs with a heterogeneous two-way grease-retaining piston seal to ensure low friction and extended lubrication. The U code indicates a rigid flat-end back cover, and because this SKU lacks the -S suffix, it is not equipped with a built-in magnet and cannot host CMSG, DMSG, or EMSG position sensors.
Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC50X40U Technical Specifications
| Model | Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC50X40U |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder |
| Bore size | Ø50 mm |
| Stroke | 40 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 MBLC50X40U
| MBL | Aluminum-barrel mini round cylinder, double acting. |
|---|---|
| 50 | Bore size in mm. |
| ×40 | 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 MBLC50X40U Is Used
Injection Mold Ejection
Provides the 981 N of thrust needed to knock out dense plastic parts from molds, with the 40 mm stroke and air cushion preventing harsh impact on the mold face during fast cycles.
Bottle Diverter Gate
Short-arc routing of heavy glass containers on a packaging line, where the compact 50 mm body fits between guide rails and the cushion absorbs the stop force.
Pneumatic Press Stake
Drives a short 40 mm staking head to seat bearings or pins, using the 0.7 MPa 1374 N thrust for firm insertion while the cushion protects the tooling from shock.
Is the Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC50X40U the Right Cylinder?
Choose this 50 mm bore when a smaller 40 mm cylinder (providing 628 N push at 0.5 MPa) lacks thrust, or step up to the 63 mm bore (1558 N push at 0.5 MPa) if your load exceeds 1 ton. The 40 mm stroke is optimal for short, repetitive clamping or ejecting tasks. Select the MBLC over the fixed-bumper MBL when your cycle speeds push past standard limits and you need tunable deceleration to absorb kinetic energy.
Remember that the adjustable air cushion only decelerates the piston near the stroke ends; it is not a brake. If the air supply is lost or the valve centers, the rod will drift, so fit an external pilot-operated check valve for position holding. This configuration uses a G1/4 port, an M14x1.5 rod-end thread, and PT tapered port threads.
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 MBLC50X40U FAQ
This 50 mm bore cylinder uses a G1/4 port and an M14x1.5 rod thread. At 0.5 MPa it generates 981 N push and 881 N pull. At 0.7 MPa, push increases to 1374 N. The maximum theoretical force is 200 kgf at 1.0 MPa.
A screw needle at each end traps exhaust air to decelerate the piston smoothly, which you tune to match the load and speed. This protects the end covers better than a fixed rubber bumper. Because this specific SKU lacks the -S suffix, it has no internal magnet and cannot mount CMSG, DMSG, or EMSG sensor switches.
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