Airtac MBL Aluminum Alloy Mini Cylinder MBL40X225U
The AirTAC Airtac MBL Aluminum Alloy Mini Cylinder MBL40X225U is a genuine double-acting aluminum-barrel mini round cylinder with a Ø40mm bore and 225mm stroke, G1/4 air ports and a fixed rubber bumper. Its compact riveted body suits push, hold and clamp motion in tight machine spaces.
- BoreØ40 mm
- Stroke225 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM12×1.25
- CushionRubber bumper (MBLC variant: adjustable air cushion)
About the Airtac MBL Aluminum Alloy Mini Cylinder MBL40X225U
The AirTAC MBL40X225U is a double-acting aluminum mini round cylinder engineered for tight machine spaces where a larger profile body will not fit. It delivers a robust 628 N push and 528 N pull at 0.5 MPa, making this 225 mm stroke variant well-suited for mid-range linear actuation. The U suffix denotes a rigid flat-end rear cover that mounts flush against frames to resist axial misalignment.
Unlike serviceable tie-rod bodies, this unit uses a riveted rolling-packed barrel that permanently crimps the covers to the tube for a lighter, compact profile. Internal longevity relies on a heterogeneous two-way piston seal that retains grease, while the carbon-steel rod features 20 um hard-chrome plating for wear resistance. Because this specific SKU lacks the -S suffix, it cannot accept a CMSG, DMSG, or EMSG position sensor.
Airtac MBL Aluminum Alloy Mini Cylinder MBL40X225U Technical Specifications
| Model | Airtac MBL Aluminum Alloy Mini Cylinder MBL40X225U |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder |
| Bore size | Ø40 mm |
| Stroke | 225 mm |
| Acting type | Double acting |
| Port size | G1/4 |
| Rod thread | M12×1.25 |
| 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 (Ø40mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 628 N | 528 N |
| 0.7 MPa | 880 N | — |
| Max (@1.0 MPa) | 128 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac MBL Aluminum Alloy Mini Cylinder MBL40X225U
| MBL | Aluminum-barrel mini round cylinder, double acting. |
|---|---|
| 40 | 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 MBL Aluminum Alloy Mini Cylinder MBL40X225U Is Used
Packaging Line Diverter
Actuates a 225 mm routing gate at 0.5 MPa to push medium-weight cartons between adjacent conveyor belts, utilizing the 628 N thrust for positive transfer.
PCB Router Clearance
Provides the extended reach needed to lift a printed circuit board routing head out of the work zone, benefiting from the rigid U flat-end cover to handle the axial lift load.
Palletizer Flap Opener
Drives a 225 mm stroke mechanism to unfold retaining flaps on incoming pallets, where the 528 N pull force at 0.5 MPa reliably retracts the arm under spring-box resistance.
Is the Airtac MBL Aluminum Alloy Mini Cylinder MBL40X225U the Right Cylinder?
Stepping down to the 32 mm bore drops the 0.5 MPa push force to 402 N, while moving up to the 50 mm bore increases it to 981 N. Choose the MBLC variant if your cycle speed demands an adjustable air cushion, as the base MBL uses a fixed rubber bumper that cannot be tuned. If you need spring-return actuation, consider the MSBL or MTBL single-acting models.
With a 225 mm stroke on a Ø16 mm rod, the unsupported length is highly susceptible to side-load bending. Use an external guide rail, pair the cylinder with a pivot knuckle, or switch to the MBLD double-rod type to prevent rod bearing distortion. Note that this cylinder drifts if air pressure is lost; fit an external pilot-operated check valve if the load must be held safely. Replacement match: 40 mm bore, 225 mm stroke, G1/4 port, PT thread, U flat-end 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 MBL Aluminum Alloy Mini Cylinder MBL40X225U FAQ
At 0.5 MPa it provides 628 N push and 528 N pull force; at 0.7 MPa the push increases to 880 N. The maximum theoretical force is 128 kgf at 1.0 MPa. It operates at a speed range of 30-800 mm/s.
The base MBL uses a fixed rubber bumper to soften end-stop impact and cannot be adjusted like the MBLC air-cushion variant. Additionally, this specific U-coded SKU lacks a built-in magnet, so CMSG, DMSG, or EMSG electronic or reed sensors cannot be fitted for position detection.
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