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AirTAC MICJ Series · Mini Cylinder

Airtac MICJ Adjustable Mini Cylinder MICJ40X450-50

The AirTAC MICJ Adjustable Mini Cylinder MICJ40X450-50 is a genuine double acting, double rod, adjustable stroke + cushion round-body mini air cylinder with a Ø40mm bore and 450mm stroke, 1/4" air ports and a stainless-steel barrel and rod for mildly corrosive environments.

  • BoreØ40 mm
  • Stroke450 mm
  • Port size1/4"
  • Acting typeDouble acting, double rod, adjustable stroke + cushion
  • Rod threadM12×1.25
  • CushionVariable air cushion, both ends
$157.39 $171.71Save 8% Standard model — ready in 3-5 business days to process and dispatch
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About the Airtac MICJ Adjustable Mini Cylinder MICJ40X450-50

Dial in a precise forward stop on-site with the AirTAC MICJ40X450-50, a stainless-steel round-body mini cylinder featuring a 50 mm extend-stroke adjuster and a needle-set air cushion at both ends. The external screw trims the extend end position down from the 450 mm maximum without swapping hardware, while the dual cushions soak up high-speed shock. As a non-ISO 6432 Ø40 bore, it runs on a 1/4" port with a Ø16 rod and M12x1.25 male thread.

The stainless barrel and rod resist mild washdown corrosion. Note this SKU lacks a magnet, so it cannot host CMSG/DMSG/EMSG sensors; the stop screw and cushions decelerate the load but do not lock mid-stroke.

Airtac MICJ Adjustable Mini Cylinder MICJ40X450-50 Technical Specifications

ModelAirtac MICJ Adjustable Mini Cylinder MICJ40X450-50
SeriesMICJ mini cylinder
Bore sizeØ40 mm
Stroke450 mm
Acting typeDouble acting, double rod, adjustable stroke + cushion
Port size1/4"
Rod threadM12×1.25
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
CushionVariable air cushion, both ends
Max standard strokeUp to 500 mm

Specifications follow the official AirTAC MI/MIC (ISO 6432) datasheet. Barrel & rod: stainless steel (round-body, riveted construction). Thread options: PT (blank) / G. Note: the Ø40 bore is a larger, non-ISO-6432 size.

Theoretical Output Force (Ø40mm)

PressureForce (both ways)
0.5 MPa528 N
0.7 MPa739 N
Max (@1.0 MPa)108 kgf

MIJ / MICJ are double-rod: the rear rod that carries the stroke adjuster exits the rear cover, so both piston faces lose rod area. The rod-side (annular) area is used for both directions (conservative).

Model Code: Airtac MICJ Adjustable Mini Cylinder MICJ40X450-50

MICJround-body mini cylinder (adjustable-stroke, variable cushion).
40Bore size in mm.
×450Stroke length in mm.
-50Adjustable stroke window (mm the extend stroke can be shortened on site).
-SOptional built-in magnet for CMSG / DMSG / EMSG sensors.

MI-family variants: MI / MIC (double acting ±cushion), MSI / MTI (single acting push / pull), MID / MICD (double rod ±cushion), MIJ / MICJ (double rod, adjustable stroke ±cushion). Back covers CA / U / R / CM. Mounting LB / FA / SDB / TC.

Where the Airtac MICJ Adjustable Mini Cylinder MICJ40X450-50 Is Used

warehouse

Pallet Stopper Gate

Arrest pallets at a packing station; the adjustable air cushion absorbs the 450 mm high-speed stroke impact while the stop screw sets the exact resting position.

Is the Airtac MICJ Adjustable Mini Cylinder MICJ40X450-50 the Right Cylinder?

The 50 mm extend adjuster is ideal for fast set-position moves where you need to tune the forward impact without re-engineering the machine.

Mount using LB foot, FA flange or TC trunnion brackets, as the SDB pivot-block is not offered on this adjustable variant. Because a plain cylinder drifts on air loss, add an external rod lock or pilot check valve if the load must be held. For position sensing, select the -S magnet variant to enable CMSG/DMSG/EMSG switches.

Quick checklist

  • ✓ Required force at your working pressure
  • ✓ Stroke and mounting space
  • ✓ Port/thread type (PT / G)
  • ✓ Magnet (-S) for sensors?
  • ✓ Back cover (CA/U/R/CM) & mount (LB/FA/SDB/TC)
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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 Use correct back cover (CA/U/R/CM) & mount (LB/FA/SDB/TC).
  • check Installation by qualified personnel per AirTAC docs.

Airtac MICJ Adjustable Mini Cylinder MICJ40X450-50 FAQ

This double-acting Ø40 bore cylinder pushes 628.3 N and pulls 527.8 N at 0.5 MPa, pushes 879.6 N and pulls 738.9 N at 0.7 MPa, with a theoretical max of 128.1 kgf at 1.0 MPa. It uses a 1/4" air port and a Ø16 rod with an M12x1.25 male thread.

An external screw shortens the extend stroke by up to 50 mm on-site, letting you set the forward end position without changing the cylinder. Needle-set air cushions at both ends absorb high-speed shock but only decelerate near stroke end; they do not lock the load. This non-magnet SKU cannot take sensors, so choose the -S variant for CMSG/DMSG/EMSG switches.

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