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AirTAC MAJ Series · Mini Cylinder

Airtac B01-MAJ Special Purpose Cylinder B01-MAJ25X100-50S

The AirTAC Airtac B01-MAJ Special Purpose Cylinder B01-MAJ25X100-50S is a genuine double acting, adjustable stroke standard round-body mini air cylinder with a Ø0mm bore and 100mm stroke, PT/G air ports and a stainless-steel barrel with a hard-chrome-plated rod for reliable, mildly corrosion-resistant service.

  • BoreØ0 mm
  • Stroke100 mm
  • Port sizePT/G
  • Acting typeDouble acting, adjustable stroke
  • Rod thread
  • CushionFixed anti-impact bumper pads
$54.86 $62.36Save 12% Standard model — ready in 3-5 business days to process and dispatch
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About the Airtac B01-MAJ Special Purpose Cylinder B01-MAJ25X100-50S

Fifty millimetres of on-site stroke adjustment gives the MAJ25X100-50S unusual flexibility for a 25 mm bore: turn the external stop screw and the extend stroke lands anywhere within the 50 mm window, while the full 100 mm travel stays available. At 0.5 MPa expect 245.3 N on extend and 206.1 N on retract.

Construction is the classic MA recipe - a stainless-steel barrel rolled onto aluminium-alloy covers with a stainless-steel block, sealed by a two-way piston seal that also stores grease, and a 20 um hard-chrome plating on the carbon-steel rod to resist scoring. If your fixture only needs about 147 N of real force at 0.5 MPa - 60 percent of the rated push - this cylinder still carries margin for pressure dips.

Airtac B01-MAJ Special Purpose Cylinder B01-MAJ25X100-50S Technical Specifications

ModelAirtac B01-MAJ Special Purpose Cylinder B01-MAJ25X100-50S
SeriesMAJ mini cylinder
Bore sizeØ0 mm
Stroke100 mm
Acting typeDouble acting, adjustable stroke
Port sizePT/G
Rod thread
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
CushionFixed anti-impact bumper pads
Max standard strokeUp to 300 mm

Specifications follow the official AirTAC MA-series datasheet. Barrel: stainless-steel tube (round-body, riveted rolling-packed construction); piston rod: carbon steel with 20µm hard-chrome plating; covers: aluminium alloy. Thread options: PT (blank) / G / NPT. Every MA-series cylinder ships with a built-in magnet for CMSG / DMSG / EMSG position sensors.

Theoretical Output Force (Ø0mm)

PressurePush forcePull force
0.5 MPa0 N0 N
0.7 MPa0 N0 N
Max (@1.0 MPa)0 kgf

Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.

Model Code: Airtac B01-MAJ Special Purpose Cylinder B01-MAJ25X100-50S

MAJStandard round-body mini cylinder (adjustable-stroke).
0Bore size in mm.
×100Stroke length in mm.
-50Adjustable stroke window (mm the extend stroke can be shortened on site).
-SBuilt-in magnet for CMSG / DMSG / EMSG sensors (standard on MA series).
CA / U / CMBack-cover type: CA pivot, U flat-end, CM round-end.

MA-family variants: MA / MAC (double acting ±cushion), MSA / MTA (single acting push / pull), MAD / MACD (double rod ±cushion), MAJ / MACJ (adjustable stroke ±cushion), MAR (cushioned with integrated F/U mount). Mounting accessories: FA flange, LB foot, SDB pivot; plus I and Y knuckles. Thread PT (blank) / G / NPT.

Where the Airtac B01-MAJ Special Purpose Cylinder B01-MAJ25X100-50S Is Used

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Clutch-plate test rig

A QC bench cycles clutch packs at 343.4 N (0.7 MPa), and the 50 mm window lets the operator set ram dwell depth per part number.

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Bagging chute gate

A gate under a snack-food weigher drops batches; the stainless round body shrugs off flour-dust wipe-downs, and LB feet bolt it straight to the frame.

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Tray divider actuator

Sorting trays of different widths on a conveyor, one cylinder covers all via the 50 mm stop range, with a Y knuckle for the pivoting pusher arm.

Is the Airtac B01-MAJ Special Purpose Cylinder B01-MAJ25X100-50S the Right Cylinder?

Compare both directions before ordering: push at 0.5 MPa is 245.3 N and pull is 206.1 N, so retraction-heavy jobs may prefer the 32 mm bore (402.2 N / 345.6 N); the 20 mm alternative delivers 157.0 N / 131.9 N. Because the adjuster shortens the extend stroke but cannot lengthen it past the ordered 100 mm, order the full stroke you might ever need - it is well under the 300 mm standard limit for this bore. FA flange and LB foot mount; I and Y knuckles suit pivoting loads. The stop sets extend position only - it is not a brake, and drift is possible on pressure loss.

Quick checklist

  • ✓ Required force at your working pressure
  • ✓ Stroke and mounting space
  • ✓ Port/thread type (PT / G / NPT)
  • ✓ Magnet (-S) is standard for sensors
  • ✓ Back cover (CA/U/CM) & mount (FA/LB/SDB)
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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 Do not dismantle the riveted front/back covers.
  • check Bumper models: keep speed within the rated range.
  • check Installation by qualified personnel per AirTAC docs.

Airtac B01-MAJ Special Purpose Cylinder B01-MAJ25X100-50S FAQ

At 0.5 MPa: 245.3 N extend, 206.1 N retract. At 0.7 MPa: 343.4 N extend, 288.5 N retract. Theoretical maximum force is 50 kgf at 1.0 MPa. Air supply is 0.15-1.0 MPa (22-145 psi), ports are 1/8" on the 25 mm bore.

The riveted stainless barrel and 20 um hard-chrome plated carbon-steel rod resist corrosion in damp, food-adjacent or outdoor spots where painted mini cylinders blister, while aluminium-alloy covers keep the body compact for tight machine layouts.

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Related AirTAC MAJ Cylinders

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