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AirTAC MIC Series · Mini Cylinder

Airtac MIC Cushioned Mini Cylinder MIC40X450SU

The AirTAC Airtac MIC Cushioned Mini Cylinder MIC40X450SU is a genuine double acting + 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 + cushion
  • Rod threadM12×1.25
  • CushionVariable air cushion, both ends
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About the Airtac MIC Cushioned Mini Cylinder MIC40X450SU

Delivering 879.6 N of push force at 0.7 MPa, the AirTAC MIC40X450SU is a robust round-body mini cylinder built for demanding tasks. This double-acting actuator features a stainless-steel barrel and piston rod that resist mild corrosion and washdown environments. A 1/4" port supplies the 16 mm rod, driving a 450 mm stroke with a theoretical maximum capacity of 128.1 kgf.

The defining feature is the adjustable air cushion at both ends. By turning a needle valve, you tune the deceleration to absorb high-speed end-of-stroke shock, protecting the load and reducing noise. For vertical setups, the 628.3 N push force at 0.5 MPa lifts about 32 kg safely with a 2:1 margin. The U back cover provides a 90-degree port orientation for tight routing, while the -S suffix enables CMSG, DMSG, or EMSG sensors.

Airtac MIC Cushioned Mini Cylinder MIC40X450SU Technical Specifications

ModelAirtac MIC Cushioned Mini Cylinder MIC40X450SU
SeriesMIC mini cylinder
Bore sizeØ40 mm
Stroke450 mm
Acting typeDouble acting + 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)

PressurePush forcePull force
0.5 MPa628 N528 N
0.7 MPa880 N739 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 MIC Cushioned Mini Cylinder MIC40X450SU

MICround-body mini cylinder (double-acting, variable cushion).
40Bore size in mm.
×450Stroke length in mm.
-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 (adjustable stroke ±cushion). Back covers CA / U / R / CM. Mounting LB / FA / SDB / TC.

Where the Airtac MIC Cushioned Mini Cylinder MIC40X450SU Is Used

conveyor_belt

Heavy Package Diversion

Uses the 628.3 N push force at 0.5 MPa to push heavy cartons off a high-speed main line, relying on the adjustable cushion to stop the 450 mm stroke smoothly without slamming.

warehouse

Vertical Material Lift

Raises components weighing up to 32 kg in a storage rack, taking advantage of the stainless build for humid settings and the U back cover for compact 90-degree fitting access.

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Pallet Flap Folding

Folds large cardboard flaps on oversized pallets where the 128.1 kgf theoretical max force ensures positive actuation through the full 450 mm travel.

Is the Airtac MIC Cushioned Mini Cylinder MIC40X450SU the Right Cylinder?

If 879.6 N at 0.7 MPa is excessive, the smaller Ø32 bore provides 563.0 N push, but there is no larger MIC bore above 40 mm. Choose this Ø40 model when moving heavy loads at high speeds where the adjustable air cushion is essential to prevent impact damage. Keep operating speed between 30-800 mm/s for optimal cushion performance.

Remember that the air cushion only decelerates the piston near the stroke end; it does not function as a lock or brake. If air pressure drops, the piston will drift, so install an external rod lock or pilot-operated check valve for suspended loads. Mounting options include LB foot, FA flange, SDB pivot, and TC trunnion. The built-in magnet allows for position sensing.

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 MIC Cushioned Mini Cylinder MIC40X450SU FAQ

This double-acting round-body mini cylinder has a 40 mm bore, a 16 mm rod, and a 1/4" port. It generates 628.3 N push and 527.8 N pull at 0.5 MPa, or 879.6 N push and 738.9 N pull at 0.7 MPa. The theoretical maximum force is 128.1 kgf at 1.0 MPa.

No. The adjustable air cushion only decelerates the piston near the end of the stroke to reduce shock; it is not a brake. If air pressure drops, the piston will drift. For vertical loads, you must use an external rod lock or a pilot-operated check valve.

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