Airtac MBL Aluminum Alloy Mini Cylinder MBL40X20SCA
The AirTAC Airtac MBL Aluminum Alloy Mini Cylinder MBL40X20SCA is a genuine double-acting aluminum-barrel mini round cylinder with a Ø40mm bore and 20mm 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
- Stroke20 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 MBL40X20SCA
The AirTAC MBL40X20SCA is a compact double-acting aluminum mini round cylinder engineered for tight machine spaces. At 0.5 MPa it provides 628 N of push force and 528 N of pull force, making this 20 mm stroke variant ideal for short, high-impact clamping or ejection tasks. The riveted rolling-packed barrel crimps the front and back covers directly to the tube, yielding a lightweight body that is not designed to be disassembled like a traditional tie-rod cylinder.
This SKU includes a built-in magnet (-S) for CMSG reed or DMSG/EMSG electronic sensor switches to detect rod position. It features a CA pivot back cover that swings on a pin to accommodate arcing or angular loads, distinguishing it from rigid flat-end U models. The carbon-steel piston rod with 20 um hard-chrome plating resists wear and corrosion, while the heterogeneous two-way piston seal retains grease for long service life. End-of-stroke impact is absorbed by a fixed rubber bumper rather than an adjustable cushion.
Airtac MBL Aluminum Alloy Mini Cylinder MBL40X20SCA Technical Specifications
| Model | Airtac MBL Aluminum Alloy Mini Cylinder MBL40X20SCA |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder |
| Bore size | Ø40 mm |
| Stroke | 20 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 MBL40X20SCA
| MBL | Aluminum-barrel mini round cylinder, double acting. |
|---|---|
| 40 | Bore size in mm. |
| ×20 | 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 MBL40X20SCA Is Used
Packaging Diverter Arm
Drives a short 20 mm pivot stroke to deflect cartons on a packaging conveyor, utilizing the CA clevis to handle the angular load during rapid 628 N actuation.
CNC Lathe Door Latch
Executes a compact 20 mm locking motion on a sliding machine door, where the DMSG electronic sensor confirms latch engagement via the integrated magnet.
Stamping Press Ejector
Kicks small metal blanks out of a tight fixture using 880 N of push force at 0.7 MPa, relying on the fixed rubber bumper to absorb the sudden end-of-stroke impact.
Is the Airtac MBL Aluminum Alloy Mini Cylinder MBL40X20SCA the Right Cylinder?
For lower force needs, stepping down to the 32 mm bore yields 402 N of push at 0.5 MPa, while moving up to the 50 mm bore provides 981 N for heavier demands. If your application requires end-of-stroke speed regulation rather than a fixed rubber bumper, select the MBLC variant for adjustable air cushioning. Because the CA pivot back cover is specifically designed for arcing loads, pair it with an SDB pivot bracket for optimal alignment. Note that a standard MBL does not hold its load when air pressure is lost; the rod will drift, so an external rod lock or pilot-operated check valve is required for position holding without live pressure.
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 MBL40X20SCA FAQ
This 40 mm bore cylinder uses a G1/4 port and a Ø16 mm rod. It delivers 628 N push and 528 N pull at 0.5 MPa, 880 N push at 0.7 MPa, and a maximum theoretical force of 128 kgf at 1.0 MPa.
It includes a built-in magnet (-S) for CMSG, DMSG, or EMSG sensor switches. However, it uses a fixed rubber bumper for end-of-stroke damping, not an adjustable air cushion; choose the MBLC variant if you need adjustable cushioning.
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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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