Airtac MBL Aluminum Alloy Mini Cylinder MBL20X400SCA
The AirTAC MBL Aluminum Alloy Mini Cylinder MBL20X400SCA is a genuine double-acting aluminum-barrel mini round cylinder with a Ø20mm bore and 400mm stroke, 1/8" air ports and a fixed rubber bumper. Its compact riveted body suits push, hold and clamp motion in tight machine spaces.
- BoreØ20 mm
- Stroke400 mm
- Port size1/8"
- Acting typeDouble acting
- Rod threadM8×1.25
- CushionRubber bumper (MBLC variant: adjustable air cushion)
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac MBL Aluminum Alloy Mini Cylinder MBL20X400SCA
The AirTAC MBL20X400SCA is a double-acting aluminum mini round cylinder engineered for compact spaces requiring a long 400mm stroke. It delivers 157N of push force and 132N of pull force at 0.5 MPa. The riveted rolling-packed barrel keeps the body light and tight, but unlike a tie-rod cylinder, it is not designed to be disassembled in the field. A heterogeneous two-way piston seal retains grease internally for long service life, while the carbon-steel rod features 20μm hard-chrome plating to resist wear and corrosion.
This SKU includes a CA pivot (clevis) back cover, allowing the cylinder body to swing on a pin to accommodate arcing or angular loads. It also features a built-in magnet (-S) for non-contact position detection using AirTAC CMSG (reed), DMSG, or EMSG (solid-state) sensor switches. End-of-stroke deceleration is handled by a fixed rubber bumper, which softens impact but is not an adjustable air cushion like the MBLC variant.
Airtac MBL Aluminum Alloy Mini Cylinder MBL20X400SCA Technical Specifications
| Model | Airtac MBL Aluminum Alloy Mini Cylinder MBL20X400SCA |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder |
| Bore size | Ø20 mm |
| Stroke | 400 mm |
| Acting type | Double acting |
| Port size | 1/8" |
| Rod thread | M8×1.25 |
| 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 (Ø20mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 157 N | 132 N |
| 0.7 MPa | 220 N | — |
| Max (@1.0 MPa) | 32 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 MBL20X400SCA
| MBL | Aluminum-barrel mini round cylinder, double acting. |
|---|---|
| 20 | Bore size in mm. |
| ×400 | 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 MBL20X400SCA Is Used
Textile Yarn Guide
Drives a traversing yarn guide across a 400mm path in a weaving loom, using the CA pivot to absorb slight angular misalignment while applying 157N of push force.
Packaging Flap Folder
Extends a mechanical arm to fold cardboard flaps on a carton sealing machine, where the built-in magnet confirms full extension via a DMSG solid-state sensor.
Light-Part Rejecter
Sweeps defective injection-molded plastic caps off a conveyor line over a 400mm arc, relying on the lightweight riveted aluminum body for fast cycling at up to 800 mm/s.
Is the Airtac MBL Aluminum Alloy Mini Cylinder MBL20X400SCA the Right Cylinder?
At 0.5 MPa, this 20mm bore yields 157N push and 132N pull. If you need less force, there is no smaller MBL bore, but if your application requires greater thrust, stepping up to the 25mm bore provides 245N push and 206N pull. For single-acting push or spring-return needs, consider the MSBL series. Remember that a plain MBL does not hold its load if air pressure drops; the rod will drift, so an external rod lock or pilot-operated check valve is required for position holding.
With a 400mm stroke on an Ø8mm rod, side-load tolerance is minimal. The unsupported rod is highly susceptible to bending under lateral stress. To manage this, leverage the CA pivot back cover paired with an SDB pivot bracket, add an external guide, or switch to the MBLD double-rod cylinder for anti-rotation. Replacement match: 20mm bore, 400mm stroke, G1/8 port, PT thread, CA back cover, magnet included.
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 MBL20X400SCA FAQ
This 20mm bore double-acting cylinder provides 157N push and 132N pull at 0.5 MPa, 220N push at 0.7 MPa, and a maximum theoretical force of 32 kgf at 1.0 MPa. The operating speed ranges from 30-800 mm/s.
No, the base MBL20X400SCA uses a fixed rubber bumper to soften end-of-stroke impact, not an adjustable cushion screw. If your application requires adjustable air cushioning for heavier or faster moving loads, you should select the MBLC variant.
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1-Year Warranty
Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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