Airtac MBL Aluminum Alloy Mini Cylinder MBL40X20CA
The AirTAC Airtac MBL Aluminum Alloy Mini Cylinder MBL40X20CA 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 MBL40X20CA
The AirTAC MBL40X20CA is a compact double-acting aluminum mini round cylinder engineered for tight machine spaces. Delivering 628 N of push force and 528 N of pull force at 0.5 MPa, this 40 mm bore, 20 mm stroke unit is built for short, powerful linear motion. The riveted rolling-packed aluminum barrel keeps the overall footprint small and lightweight, though it is not designed to be disassembled like a traditional tie-rod body.
This specific SKU features a CA pivot (clevis) back cover, allowing the cylinder to swing on a pin to accommodate arcing or angular loads during short-stroke cycling. Internally, a heterogeneous two-way piston seal retains grease for long service life, while the Ø16 mm carbon-steel piston rod features 20 µm hard-chrome plating for wear and corrosion resistance. End-of-stroke impact is absorbed by a fixed rubber bumper rather than an adjustable cushion. Note that because this configuration lacks the -S suffix for a built-in magnet, it cannot support CMSG, DMSG, or EMSG position sensing.
Airtac MBL Aluminum Alloy Mini Cylinder MBL40X20CA Technical Specifications
| Model | Airtac MBL Aluminum Alloy Mini Cylinder MBL40X20CA |
|---|---|
| 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 MBL40X20CA
| 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 MBL40X20CA Is Used
Pivoting Clamp Arm
Ideal for actuating a short-throw pivoting clamp arm on a CNC fixture, utilizing the CA clevis to swing and accommodate angular alignment while delivering 628 N of clamping force.
Package Divert Gate
Drives a short 20 mm stroke diverter gate on a packaging conveyor, where the compact riveted aluminum body fits within tight side-frame clearances to redirect small cartons.
PCB Ejection Station
Used in electronics assembly to eject finished PCB panels from a testing nest, benefiting from the 20 µm hard-chrome plated rod for reliable, low-friction cycling in clean environments.
Is the Airtac MBL Aluminum Alloy Mini Cylinder MBL40X20CA the Right Cylinder?
Select the MBL40X20CA when your mechanism requires a short 20 mm stroke with moderate force and a pivoting rear mount. If you need less force, step down to the 32 mm bore (402 N push at 0.5 MPa); if your application demands heavier thrust, step up to the 50 mm bore (981 N push at 0.5 MPa). For this 40 mm bore, the standard G1/4 port and PT thread form provide the necessary air flow. If your cycle creates significant end-of-stroke shock, consider the MBLC variant, which offers adjustable air cushioning instead of the fixed rubber bumper.
Keep in mind that a plain MBL does not hold its load when air pressure is lost or exhausted; the rod will drift. The rubber bumper softens impact but acts as no mechanical lock. If you require fail-safe load holding, you must integrate an external rod lock or a pilot-operated check valve. Additionally, because this SKU has no -S magnet, position feedback requires an external mechanical switch.
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 MBL40X20CA FAQ
The 40 mm bore generates 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 uses a G1/4 port with a default PT (tapered) thread form, a Ø16 mm rod, and an M12x1.25 rod-end thread.
No, this base MBL model uses a fixed rubber bumper to absorb end-of-stroke impact and cannot be adjusted; for adjustable air cushioning, you need the MBLC variant. Additionally, because this SKU lacks the -S suffix for a built-in magnet, it cannot accept CMSG, DMSG, or EMSG electronic position sensors.
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