Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC40X225SU
The AirTAC Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC40X225SU 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 MBLC40X225SU
The AirTAC MBLC40X225SU is a compact double-acting aluminum mini cylinder engineered with a screw-adjustable pneumatic cushion at both ends. Delivering 628 N of push force and 528 N of pull force at 0.5 MPa, it is built around a 40 mm bore and a 225 mm stroke. The U suffix denotes a rigid flat-end rear cover, while the integrated S magnet enables position detection. This 225 mm travel makes it highly suitable for intermediate linear positioning tasks that require a smooth, controlled deceleration rather than a harsh impact stop.
Unlike the standard MBL series which relies on a fixed rubber bumper, this MBLC variant allows you to tune the end-of-stroke needle valve to match your specific load and velocity, effectively reducing shock, noise, and vibration on faster or heavier moves. The riveted rolling-packed aluminum barrel keeps the body light and compact for tight machine spaces, and the carbon-steel rod features 20 um hard-chrome plating to resist wear. A heterogeneous two-way grease-retaining piston seal maintains consistent lubrication over the cylinder's operational life.
Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC40X225SU Technical Specifications
| Model | Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC40X225SU |
|---|---|
| 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 MBLC40X225SU
| 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 MBLC40X225SU Is Used
PCB Router Z-Axis plunge
Drives the vertical plunge of a spindle on a desktop PCB routing machine, using the 225 mm stroke to clear tall components and the adjustable cushion to prevent bounce at the bottom of the cut.
Pallet Divert Gate
Actuates a diverting gate on a 50 mm wide conveyor system, using the 628 N push force at 0.5 MPa to reliably shift lightweight plastic pallets without jarring the conveyor frame at stroke end.
Carton Flap Folder
Folds the lower major flaps of corrugated shipping cartons on a packaging line, where the tunable air cushion ensures the folding arm does not crush the cardboard as it completes its 225 mm travel.
Is the Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC40X225SU the Right Cylinder?
When sizing this 40 mm bore, consider stepping down to the 32 mm bore if your application requires less force (delivering 402 N push at 0.5 MPa), or stepping up to the 50 mm bore if you need to move heavier masses (providing 981 N push at 0.5 MPa). Choose the MBLC over the base MBL when your cycle rates are high or your payload is substantial enough that a fixed rubber bumper would wear out too quickly or cause unacceptable impact stress.
At a 225 mm stroke, the Ø16 mm piston rod is susceptible to bending under lateral loads or side forces. To manage this, ensure the load is guided externally, or switch to a pivot mounting style like an SDB bracket or CA back cover to absorb arcing movements. As a double-acting actuator, this cylinder relies on live air to hold its position; if air pressure is lost or the valve centers, the rod will drift. For fail-safe holding, an external rod lock or pilot-operated check valve is required. This SKU features a PT (tapered) port thread, an M12x1.25 rod-end thread, and a U flat-end back cover.
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 MBLC40X225SU 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 increases to 880 N. The theoretical maximum force is 128 kgf at 1.0 MPa. It uses a G1/4 port, a Ø16 mm rod, and an M12x1.25 rod-end thread.
The cushion is a screw-tunable pneumatic needle valve at both ends that traps exhaust air to decelerate the piston smoothly near the stroke ends; it is a deceleration device, not a load lock or brake. The -S suffix indicates a built-in magnet for position detection, compatible with AirTAC CMSG (reed), DMSG, and EMSG (electronic) sensor switches.
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