Airtac MBL Aluminum Alloy Mini Cylinder MBL40X50SU
The AirTAC Airtac MBL Aluminum Alloy Mini Cylinder MBL40X50SU is a genuine double-acting aluminum-barrel mini round cylinder with a Ø40mm bore and 50mm 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
- Stroke50 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 MBL40X50SU
The AirTAC MBL40X50SU is a double-acting aluminum mini round cylinder engineered for tight machine spaces. With a 40mm bore and 50mm stroke, it generates 628 N of push force and 528 N of pull force at 0.5 MPa. The riveted rolling-packed barrel permanently crimps the front and rear covers to the tube, creating a lightweight, compact body that is not designed to be disassembled like a traditional tie-rod cylinder. This specific SKU includes a U flat-end back cover for rigid fixed mounting and a built-in magnet (-S) for position sensing.
Inside, a heterogeneous two-way piston seal retains grease for long service life, while the carbon steel piston rod features 20 μm hard-chrome plating to resist wear and corrosion. The cylinder relies on a fixed rubber bumper to soften end-of-stroke impacts rather than an adjustable cushion. Because the U cover provides a rigid rear mount, it is best suited for straightforward linear push-and-pull tasks rather than arcing or angular loads.
Airtac MBL Aluminum Alloy Mini Cylinder MBL40X50SU Technical Specifications
| Model | Airtac MBL Aluminum Alloy Mini Cylinder MBL40X50SU |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder |
| Bore size | Ø40 mm |
| Stroke | 50 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 MBL40X50SU
| MBL | Aluminum-barrel mini round cylinder, double acting. |
|---|---|
| 40 | Bore size in mm. |
| ×50 | 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 MBL40X50SU Is Used
CNC Fixture Clamping
Uses the 628 N push force at 0.5 MPa to secure medium-weight aluminum housings against a machining stop during milling operations.
Carton Erector Gating
Actuates a compact flap mechanism in a tight packaging machine space, using the 50mm stroke to index cardboard blanks into the folding arms.
Bottle Diverting Arm
Pushes a diverter gate on a narrow conveyor belt to sort filled plastic bottles, benefiting from the rigid U flat-end mounting for straight-line actuation.
Is the Airtac MBL Aluminum Alloy Mini Cylinder MBL40X50SU the Right Cylinder?
If you need less force, step down to the 32mm bore which provides 402 N of push force at 0.5 MPa. For heavier moves requiring more thrust, step up to the 50mm bore which delivers 981 N at 0.5 MPa. Choose the MBLC variant if your application requires adjustable air cushioning to slow down faster or heavier loads. For single-acting push or pull operations, consider the MSBL or MTBL models.
This SKU includes a built-in magnet for use with AirTAC CMSG (reed), DMSG, or EMSG (electronic) sensor switches to confirm end-of-stroke positions. The fixed rubber bumper only softens end-of-stroke impact; it does not hold the load. If air pressure is lost or the valve is centered, the rod will drift or drop, so an external rod lock or pilot-operated check valve is required to maintain position. Replacement parts must match the 40mm bore, 50mm stroke, G1/4 port, PT thread, U flat-end cover, and -S magnet configuration.
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 MBL40X50SU FAQ
At 0.5 MPa it provides 628 N push and 528 N pull. At 0.7 MPa the push force is 880 N. The maximum theoretical force is 128 kgf at 1.0 MPa. The operating pressure range is 0.15-1.0 MPa.
The base MBL uses a fixed rubber bumper, not an adjustable cushion. For adjustable air cushioning, select the MBLC variant. This specific SKU includes a built-in magnet (-S) and is compatible with AirTAC CMSG, DMSG, and EMSG sensor switches for position detection.
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1-Year Warranty
Covers non-human-caused product damage.
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Standard models usually ship in 3-4 days.
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