Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC40X225U
The AirTAC Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC40X225U 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 MBLC Aluminum Alloy Mini Air Cylinder MBLC40X225U
The AirTAC MBLC40X225U is a double-acting, single-rod aluminum mini cylinder featuring a screw-adjustable air cushion at both stroke ends. Delivering 628 N of push force and 528 N of pull force at 0.5 MPa, this 40 mm bore unit is built for fast, repetitive motion where fixed rubber bumpers would fail. The 225 mm stroke suits mid-range travel distances in compact assembly machinery.
Unlike basic round-body cylinders, the MBLC uses a riveted rolling-packed aluminum barrel for a lightweight, space-saving profile rather than a bulky tie-rod construction. It relies on a heterogeneous two-way grease-retaining piston seal and a 20 µm hard-chrome plated carbon-steel rod to maintain consistent lubrication and resist wear. The U suffix indicates a rigid flat-end back cover for straightforward mounting, and because this specific SKU lacks the -S magnet code, it cannot accept CMSG, DMSG, or EMSG position sensors.
Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC40X225U Technical Specifications
| Model | Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC40X225U |
|---|---|
| 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 MBLC Aluminum Alloy Mini Air Cylinder MBLC40X225U
| 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 MBLC Aluminum Alloy Mini Air Cylinder MBLC40X225U Is Used
PCB Router Z-Axis
Drives the vertical plunge on a printed circuit board routing machine, using the 225 mm travel to clear tooling while the air cushion prevents jarring impacts that could fracture carbide bits during rapid retraction.
Pouch Transfer Pusher
Transfers filled pouches between packaging conveyor belts, using the 628 N push force at 0.5 MPa to overcome friction without crushing the product, while the cushioned ends stop the 225 mm stroke smoothly.
Carton Flap Folder
Folds secondary carton flaps on a continuous flow wrapper, relying on the 528 N pull force to retract the folding arm quickly out of the product path before the next cycle begins.
Is the Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC40X225U the Right Cylinder?
Stepping down to the 32 mm bore yields 402 N of push force at 0.5 MPa, while stepping up to the 50 mm bore provides 981 N for heavier payloads. Choose this MBLC variant over the base MBL when your cycle speeds exceed what a fixed rubber bumper can absorb, as the needle valve allows you to tune end-of-stroke deceleration to protect the end covers. The pneumatic cushion only slows the piston near the ends; it does not lock the rod, so an external rod lock is required to hold position without live air. This 225 mm stroke falls below the 300 mm side-load threshold, but because the 40 mm bore uses a 16 mm rod, you should still avoid excessive lateral stress. The replacement match is a 40 mm bore, 225 mm stroke, G1/4 port, PT thread, U flat-end back cover, and 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 MBLC40X225U FAQ
At 0.5 MPa, this 40 mm bore cylinder provides 628 N of push force and 528 N of pull force. At 0.7 MPa, the push force increases to 880 N. The maximum theoretical force is 128 kgf when operated at the 1.0 MPa pressure limit.
The screw-adjustable pneumatic cushion at both ends allows you to tune the deceleration rate to match your specific load and speed, which is critical for high-frequency cycling. By exhausting trapped air through a restricted needle valve, it smoothly slows the piston near the end of the 225 mm stroke, preventing the harsh metal-on-metal impact that a fixed rubber bumper would transmit to the machine frame.
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