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AirTAC MBL Series · Aluminum-Barrel Mini Cylinder

Airtac MBL Aluminum Alloy Mini Cylinder MBL20X100U

The AirTAC MBL Aluminum Alloy Mini Cylinder MBL20X100U is a genuine double-acting aluminum-barrel mini round cylinder with a Ø20mm bore and 100mm 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
  • Stroke100 mm
  • Port size1/8"
  • Acting typeDouble acting
  • Rod threadM8×1.25
  • CushionRubber bumper (MBLC variant: adjustable air cushion)
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About the Airtac MBL Aluminum Alloy Mini Cylinder MBL20X100U

The AirTAC MBL20X100U is a compact double-acting aluminum mini round cylinder engineered for tight machine spaces. Operating at 0.5 MPa, it provides 157 N of push force and 132 N of pull force over a 100 mm stroke, making it suitable for precise small-part actuation.

Unlike tie-rod bodies, this unit features a riveted rolling-packed barrel where the covers are crimped to the tube, creating an ultra-light, permanently sealed assembly that is not designed to be disassembled. This specific U-coded SKU has a rigid flat-end rear cover for fixed mounting, and because it lacks the -S suffix, it cannot accept a CMSG or DMSG position sensor.

Airtac MBL Aluminum Alloy Mini Cylinder MBL20X100U Technical Specifications

ModelAirtac MBL Aluminum Alloy Mini Cylinder MBL20X100U
SeriesMBL aluminum-barrel mini round cylinder
Bore sizeØ20 mm
Stroke100 mm
Acting typeDouble acting
Port size1/8"
Rod threadM8×1.25
FluidAir (filtered by 40µm element)
Operating pressure0.15 – 1.0 MPa
Proof pressure1.5 MPa
Temperature-20 to +70 °C
Speed range30 – 800 mm/s
CushionRubber bumper (MBLC variant: adjustable air cushion)
Max strokeUp 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)

PressurePush forcePull force
0.5 MPa157 N132 N
0.7 MPa220 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 MBL20X100U

MBLAluminum-barrel mini round cylinder, double acting.
20Bore size in mm.
×100Stroke length in mm.
-SOptional 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 MBL20X100U Is Used

memory

PCB Ejector Pins

Pushes finished printed circuit boards out of test fixtures using 157 N of force without stressing delicate traces.

conveyor_belt

Package Diverter Arm

Actuates a small paddle to sort lightweight cartons on a packaging line within a confined 100 mm stroke envelope.

biotech

Lab Tube Indexing

Moves a rack of test tubes precisely 100 mm between analysis stations in compact diagnostic equipment.

Is the Airtac MBL Aluminum Alloy Mini Cylinder MBL20X100U the Right Cylinder?

If you need less force, stepping down is not an option as 20 mm is the smallest MBL bore; stepping up to the 32 mm bore yields 402 N of push force at 0.5 MPa. The base MBL relies on a fixed rubber bumper to soften end-of-stroke impacts, so for faster cycling with heavier loads, consider the MBLC variant which adds an adjustable air cushion. Note that this cylinder cannot hold a load if air pressure is lost; the rod will drift, requiring an external pilot-operated check valve for position holding. At a 100 mm stroke, the Ø8 mm carbon-steel rod offers reasonable support, but always ensure the rigid U back cover is squarely mounted to avoid binding.

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
Ask an Engineer

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 MBL20X100U FAQ

At 0.5 MPa, the 20 mm bore provides 157 N push and 132 N pull force. At 0.7 MPa, push increases to 220 N, with a theoretical maximum of 32 kgf at 1.0 MPa. It operates at 30-800 mm/s on filtered air with a G1/8 port.

This specific SKU lacks the -S magnet, so it cannot accept CMSG or DMSG electronic switches for position detection. Additionally, the base MBL uses a fixed rubber bumper for end-of-stroke impact absorption, not an adjustable air cushion; choose the MBLC variant if you need cushion adjustment.

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Related AirTAC MBL Cylinders

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