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Fixtured Current Controlled Screwdriver QMC

The Atlas Copco MicroTorque QMC series provides advanced current-controlled tightening for fixtured low-torque screwdriving applications in electronics, medical device, and precision assembly. Current control enables consistent, repeatable torque delivery across a wide range of screw sizes and joint types without a transducer, making the QMC a cost-effective precision fastening solution. The series combines accuracy, reliability, and application flexibility to serve the full diversity of low-torque assembly requirements.

  • Current-controlled tightening for consistent low-torque repeatability
  • Fixtured format for integration into automated assembly cells
  • No transducer required, cost-effective precision fastening solution
  • Suited to electronics, medical device, and precision assembly applications
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Fixtured Current Controlled Screwdriver QMC
Products in this range

Fixtured Current Controlled Screwdriver QMC models.

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ProductSKU / ModelKey specifications
QMC41-50-HM4QMC41-50-HM48432 0844 52
  • Torque range: 1.1 in-lb-4.4 in-lb
  • Torque scatter 3s: ≤ 7.5 %
  • Shut-off system: Current control
QMC21-10-HM4QMC21-10-HM48432 0844 10
  • Torque range: 0.27 in-lb-0.89 in-lb
  • Torque scatter 3s: ≤ 7.5 %
  • Shut-off system: Current control
QMC41-50-I06QMC41-50-I068432 0844 61
  • Torque range: 1.1 in-lb-4.4 in-lb
  • Torque scatter 3s: ≤ 7.5 %
  • Shut-off system: Current control
QMC41-250-I06QMC41-250-I068432 0844 64
  • Torque range: 5.5 in-lb-22.1 in-lb
  • Torque scatter 3s: ≤ 7.5 %
  • Shut-off system: Current control
QMC61-500-I06QMC61-500-I068432 0844 90
  • Torque range: 11.1 in-lb-44.2 in-lb
  • Torque scatter 3s: ≤ 7.5 %
  • Shut-off system: Current control
QMC21-12-OGQMC21-12-OG8432 0844 12
  • Torque range: 0.27 in-lb-1.1 in-lb
  • Torque scatter 3s: ≤ 20 %
  • Shut-off system: Current control
QMC41-100-HM4QMC41-100-HM48432 0844 53
  • Torque range: 2.2 in-lb-8.9 in-lb
  • Torque scatter 3s: ≤ 7.5 %
  • Shut-off system: Current control
QMC41-150-I06QMC41-150-I068432 0844 63
  • Torque range: 3.3 in-lb-13.3 in-lb
  • Torque scatter 3s: ≤ 7.5 %
  • Shut-off system: Current control
QMC41-100-I06QMC41-100-I068432 0844 62
  • Torque range: 2.2 in-lb-8.9 in-lb
  • Torque scatter 3s: ≤ 7.5 %
  • Shut-off system: Current control
QMC21-25-HM4QMC21-25-HM48432 0844 25
  • Torque range: 0.49 in-lb-2.2 in-lb
  • Torque scatter 3s: ≤ 7.5 %
  • Shut-off system: Current control
QMC21-05-HM4QMC21-05-HM48432 0844 05
  • Torque range: 0.11 in-lb-0.44 in-lb
  • Torque scatter 3s: ≤ 10 %
  • Shut-off system: Current control
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