Airtac MBL Aluminum Alloy Mini Cylinder MBL40X40U
The AirTAC Airtac MBL Aluminum Alloy Mini Cylinder MBL40X40U is a genuine double-acting aluminum-barrel mini round cylinder with a Ø40mm 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.
- BoreØ40 mm
- Stroke40 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 MBL40X40U
The AirTAC MBL40X40U is a compact double-acting aluminum mini round cylinder engineered for tight machine spaces. At 0.5 MPa it yields 628 N push and 528 N pull force, making it well suited for short 40 mm strokes requiring moderate thrust. Its riveted rolling-packed barrel crimps the front and rear covers directly to the tube, ensuring a lightweight footprint that is not designed to be disassembled like a traditional tie-rod cylinder.
This specific SKU features a rigid U flat-end back cover for fixed foot-style mounting, and because it lacks the -S suffix, it cannot accept a position sensor. The carbon-steel piston rod is hardened with 20 um chrome plating for wear resistance, paired with a heterogeneous two-way piston seal that retains grease for a long service life.
Airtac MBL Aluminum Alloy Mini Cylinder MBL40X40U Technical Specifications
| Model | Airtac MBL Aluminum Alloy Mini Cylinder MBL40X40U |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder |
| Bore size | Ø40 mm |
| Stroke | 40 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 MBL40X40U
| MBL | Aluminum-barrel mini round cylinder, double acting. |
|---|---|
| 40 | 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 MBL Aluminum Alloy Mini Cylinder MBL40X40U Is Used
Packaging Conveyor Diverter
Provides 628 N of push force to pivot small cardboard cartons onto an outfeed lane within a compact packaging machine frame.
PCB Router Clamp
Secures printed circuit board panels against a routing spindle using its rigid U flat-end mount and 40 mm stroke.
Small Part Ejector
Kicks molded plastic components out of an injection mold cavity, relying on the 20 um chrome-plated rod to resist repetitive wear.
Is the Airtac MBL Aluminum Alloy Mini Cylinder MBL40X40U the Right Cylinder?
If you need less force, step down to the 32 mm bore (402 N push at 0.5 MPa); for heavier moves, step up to the 50 mm bore (981 N push). The base MBL uses a fixed rubber bumper to soften end-of-stroke impact rather than an adjustable air cushion—choose the MBLC variant if your application requires cushion adjustment for faster cycling. Keep in mind that this cylinder does not hold its load if air pressure is lost; an external rod lock or pilot-operated check valve is required for position holding without live pressure. Replacement match: 40 mm bore, 40 mm stroke, G1/4 port, PT thread, U 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 MBL40X40U FAQ
At 0.5 MPa it pushes 628 N and pulls 528 N; at 0.7 MPa it pushes 880 N. The maximum theoretical force is 128 kgf at 1.0 MPa. The double-acting speed range is 30-800 mm/s.
Because this SKU lacks the -S suffix, it cannot take a CMSG, DMSG, or EMSG sensor switch. Additionally, the base MBL uses a fixed rubber bumper, not an adjustable cushion; upgrade to the MBLC variant for adjustable air cushioning.
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1-Year Warranty
Covers non-human-caused product damage.
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