Mini Motors for Orthopedic Reamers

Orthopedic Surgical Reamers
Orthopedic Surgical Reamers


Today's orthopedic reamers are very demanding in terms of power/torque requirements and need for increased cycle life for reliable power on demand with consistent performance throughout surgery procedures.

The needs of high powered surgical reamers are perfectly suited for Portescap's Surgical Motor Solutions product line. These slotted brushless DC motor's feature a magnetic coil design that provides extremely high-peak torque to enable surgeons to ream through the toughest bone with the smallest motor possible. To offer long life and low total cost-of-ownership to the end customer in the field, Portescap's slotted brushless mini motors are sterilizable and designed to withstand 3,000+ autoclave cycles to deliver highest reliability in the operating room with high efficiency to maximize device battery life.


  • High torque for increased surgeon control & device power

  • Lower cost of ownership / increased instrument life / lower service cost (products designed to withstand over 3,000+ autoclave cycles)

  • Lightweight and low vibration for increased surgeon tactile feel and reduced fatigue

  • High efficiency for smaller hand tool design and increased ergonomics/battery life

Customization Options 

  • Electrical magnetic coil customization to meet exact device torque and speed needs

  • Custom output shaft and housing interface features

  • High-level assembly integration

  • Custom mechanical designs for added reliability


Specification + Detail
Model Diameter{%BR%}(in) Diameter{%BR%}(mm) Max No-Load Current{%BR%}(mA) No-Load Speed{%BR%}(rpm) Continuous Stall Torque{%BR%}(mNm) Continuous Stall Torque{%BR%}(oz-in) Continuous Stall Current{%BR%}(A) Peak Torque for 1s{%BR%}(mNm) Peak Torque for 1s{%BR%}(oz-in) Torque Constant (oz-in/A) Torque Constant (mNm/A)
Large Bone Orthopedic Saw/Reamer (9.6V) 1.24 31.5 1 130 16,928 76.2 10.80 16.50 1 432.4 202.8 0.77 5.41
Large Bone Orthopedic Saw/Reamer (12V) 1.24 31.5 1 060 15,887 82.1 11.60 13.30 1 562.6 221.3 1.02 7.20
Large Bone Orthopedic Saw/Reamer (14.4V) 1.24 31.5 850 15,245 88.0 12.50 11.40 1 720.1 243.6 1.28 9.01


Specification + Detail
Model Operating Voltage{%BR%} (V min) Operating Voltage{%BR%} (V max) Feedback Maximum Continuous Input Power Control Method Autoclave Cycles
CNT1530 9.00 15.00 Sensored 300.00 Open Loop Speed 1000