Industries

Mini Motors for Electric Grippers

Electric Grippers for Robotics
Electric Grippers for Robotics

Challenge 

Pneumatic grippers have been prevalent for the last 3 decades in Factory Automation but the advance of collaborative robots has accelerated the conversion to Electric Grippers. With an ever-changing environment, cost optimization and additional intelligence are needed to meet flexibility and interchangeability requirements. Error proofing is in demand to detect incorrect or missed gripping, in addition to collision risks and unpredictable position moves. Operating costs are closely monitored, so wasted energy and maintenance costs are tracked to improve the overall system efficiency.

The move towards Electric Grippers allows for better control of the gripper finger position, grip detection, and control of the grip force and speed. Electric grippers also eliminate the need for air lines, thus saving power and maintenance while producing a cleaner work environment. Portescap provides advanced mini motor solutions for parallel grippers, angular grippers, rotary grippers, and radial grippers.

Portescap mini motors can be found in grippers for various machinery and equipment including: assembly lines, lab automation, cobots, mobile robots, and packaging.

Benefits 

  • High motor efficiency reduces power consumption

  • Low inertia and high speed reduces cycle time

  • Brushless DC slotless technology provides long lasting and reliable operation

  • High power density enables wider range of gripping force

  • Motor feedback can be incorporated for grip programming and feedback

  • Flat disc magnet steppers to save weight and reduce size

Customization Options 

  • Multiple windings and gearboxes to tailor speed and torque

  • Special materials to withstand shock, high duty cycles and temperature constraints

  • Temperature probe for optimized thermal management

  • Encoder feedback for closed loop system

[value]

Specification + Detail
MetricEnglish
Model Diameter{%BR%}(in) Diameter{%BR%}(mm) No-Load Speed{%BR%}(rpm) Typical No-Load Current{%BR%}(mA) Max continuous mechanical power (@ 25°C){%BR%}(W) Max Continuous Torque{%BR%}(mNm) Max Continuous Torque{%BR%}(oz-in) Torque Constant (oz-in/A) Torque Constant (mNm/A) Max motor speed{%BR%}(rpm)
16ECP36 ULTRA EC 0.24 16 8,100 20 27.5 7.00 0.91 3.81 26.90 63,000
22ECP35 ULTRA EC 0.87 22 13,200 30 55.0 14.30 2.02 2.46 17.40 50,000
22ECP45 ULTRA EC 0.87 22 15,700 60 80.0 29.40 4.16 2.06 14.60 47,000
22ECT35 ULTRA EC 0.87 22 10,330 100 34.0 20.00 2.83 1.54 10.90 20,000

[value]

Specification + Detail
MetricEnglish
Model Diameter{%BR%}(in) Diameter{%BR%}(mm) Holding Torque, Typical{%BR%}(mNm) Holding Torque, Typical{%BR%}(oz-in) Detent Torque, Max{%BR%}(mNm) Detent Torque, Max{%BR%}(oz-in) Linear Travel Accuracy Steps per Revolution
P430 1.54 39 60.0 8.50 3.5 0.50 3.6 100

[value]

Specification + Detail
MetricEnglish
Model Diameter{%BR%}(mm) Diameter{%BR%}(in) Max Efficiency{%BR%}(%) Nominal Torque{%BR%}(mNm) Nominal Torque{%BR%}(oz-in) Max. Recommended Input Speed{%BR%}(rpm)
R16 16.0 0.63 85 300.0 42.0 7,500
R22 22.0 0.87 70 600.0 85.0 5,000
R22HT 22.0 0.86 62 3,700.0 0.5 12,000

[value]

Specification + Detail
MetricEnglish
Model Resolution{%BR%}(line counts) Type
M Sense B 1…128,256,512,1024 Magnetic

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