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MK-C catalogue

Product catalog summary

New Range of Torque Motors: MK-C Series
The MK-C series torque motors are designed for integration into custom mechanisms to create direct drive systems. They offer industrialized design, interchangeable dimensions, excellent performance, high reliability, and low maintenance. Available in two axial dimensions, MK-CI and MK-CIC, the series aims to provide high quality at competitive prices with adherence to production deadlines and prompt delivery. Quality is ensured through UNI EN ISO 9001:2000 Certification, with comprehensive support for application projects.

Introduction to Direct-Drive Technology
Torque motors are used for rotary axes in direct-drive technology, eliminating mechanical transmission components like gearboxes. This results in simplified systems with better performance and energy efficiency. The quality of motion depends on the electronic regulation system and feedback loop quality.

Advantages of Direct-Drive Technology
Direct-drive systems eliminate gearboxes, reduce mechanical complexity, lower costs, and offer superior performance, especially in high-performance and precision applications like machine tools.

Electronic Regulation and System Quality
Direct-drive systems rely on electronic regulation for functions traditionally linked to mechanical construction. Performance is determined by drive torque and inertia moment, with electronic regulation ensuring high resolution and positioning accuracy.

Operation Safety and Quality Standards
Technai torque motors adhere to high standards, focusing on electric insulation and winding protection. Rigorous testing ensures quality and traceability, with preventive measures against voltage spikes.

Thermal Protection and Thermal Probe Fitted into the Windings
Thermal protection is emphasized, using PTC and KTY 84-130 probes to prevent overheating and allow temperature monitoring.

Motor Specifications and Performance
Specifications for the MK-CI series include dimensions, torque values, and speed capabilities. Motors are designed for water cooling and natural convection, with specific performance metrics for each.

Characteristic Curves and Tables
Graphs and tables illustrate relationships between motor parameters like torque and thermal losses, aiding in understanding performance under different conditions.

Ordering and Configuration
The document outlines the ordering code for the MK-CI series, detailing new sizes and special winding configurations, with flexibility in customization.

Conclusion
The document serves as a comprehensive guide for selecting and configuring TECHNAI's MK-CI series torque motors, emphasizing thermal management and providing detailed specifications.

Specifications Overview:
The document provides detailed specifications for the MK-CI series, covering models like 500, 530, 560, 660, 760, 990, and 1220, each with unique performance metrics and dimensions.

Key Specifications:

Stall Torque: Ranges from 1280 Nm to 5608 Nm.
Ripple Torque: Ranges from 25 Nm to 120 Nm.
Power Loss: At Twc ranges from 7 KW to 21 KW; at Tac ranges from 1.6 KW to 3.7 KW.
Thermal Resistance: Water Cooling ranges from 0.015 K/W to 0.004 K/W; Natural Convection ranges from 0.064 K/W to 0.027 K/W.
Torque Constant: Ranges from 78 Nm/A to 220.9 Nm/A.
Back EMF Constant: Ranges from 4721 V/1000 Rpm to 13353 V/1000 Rpm.
Maximum Speed at 600 Vdc: Varies for different currents, with Npk up to 18 RPM, Nwc up to 45 RPM, and Nac up to 67 RPM.
Winding Resistance and Inductance: Resistance ranges from 1 Ω to 2 Ω; Inductance ranges from 12.8 mH to 20.7 mH.
Current Ratings: Peak current up to 203 Arms; Continuous current (Water Cooling) up to 84.9 Arms; Continuous current (Natural Convection) up to 36.5 Arms.
Dimensions: Rotor height ranges from 30 mm to 150 mm; Stator height ranges from 110 mm to 230 mm.

Features and Standards:
The document outlines features like overvoltage PWM filter suppressors and three-phase chokes, adhering to CEI EN 61558 standards with tropicalized resin impregnation and isolation class H.

Additional Information:
Notes emphasize potential modifications without notice and provide contact information for Technai Team S.P.A.

Catalog excerpts

TORQUE MOTORS MK-CI SERIES DIRECT-DRIVE MOTION TECHNOLOGY

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YOUR PARTNER IN DEVELOPMENT AND PRODUCTION OF DIRECT DRIVE SOLUTIONS 1. NEW RANGE OF TORQUE MOTORS: MK-C series The definition “Torque Motors” is here used to identify a range of elements consisting of a Rotor + Stator. The System integrator will enable to develop the mechanical project of the rotary machine axis according to its own original specifications. As a result the electromagnetic component (Torque Motor) will be integrated in a custom-built mechanism to create a new “Direct Drive System”. The specific advantages of the Torque Motors range are the following: • Industrialized Design •...

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TORQUE MOTORS MK-CI SERIES | INTRODUCTION 2. INTRODUCTION TO THE DIRECT-DRIVE TECHNOLOGY “Torque motors” are applied to rotary axes as “Linear motors” are applied to straight axes. Both are the expression of the technology named Direct-Drive. The Direct-Drive principle is quite simple: the electric servomotor generates the mechanical energy which is used for driving the payload. The fundamental difference when compared to conventional systems is the absence of any mechanical means for motion transmission, e.g., gearboxes, couplings or drive belts. Speed, Torque and Power of the Direct-Drive systems...

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DIRECT-DRIVE SYSTEMS GEARBOX SYSTEMS APPLICATION WITH PREVAILING DYNAMIC CYCLE Static and dynamic rigidity are functions which The mechanical qualities of the gearbox prevail, when are exclusively delegated to the electronic regulation. the dynamic behavior of the servo-system is defined. The measuring system (feedback encoder) establishes Quality and regularity of the motion are bound by an insurmountable limit of resolution and positioning the quality of the gearbox. Backlashes, variable frictions and the geometrical quality of the execution The electronic regulation “perceives” the mechanic-...

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TORQUE MOTORS MK-CI SERIES | INTRODUCTION DIRECT-DRIVE SYSTEMS GEARBOX SYSTEMS APPLICATIONS SUBJECT TO RELEVANT TORQUE DISTURBANCES A “torque disturbance” is understood as the forces that act by contrasting the programmed axis motion. An example are the cutting forces which are generated on a milling machine. The “torque disturbance” is characterized as to the force value [N] and to the frequency [Hz] - (Rigidity = Force/Flexion) The performances of dynamic rigidity, as understood The “global dynamic rigidity” of a system using as stability to the “torque disturbance” of a Direct- a gearbox have...

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5. OPERATION SAFETY AND QUALITY STANDARDS OF TECHNAI TORQUE MOTORS All motors manufactured by TECHNAI Team correspond to high standards of execution, where particular care has been given to the electric insulation and the winding protection. Each single motor is subject to accurate tests and measuring steps during the entire manufacturing process (slot insulation, arrangement of windings, electric connections, impregnation and final encapsulation using epoxy resin). The entire manufacturing process is kept under control in each single step. During each acceptance test a document will be issued...

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TORQUE MOTORS MK-CI SERIES | INTRODUCTION This allows to evaluate the quality of the insulating materials between the winding “phases”. The insulating materials may present faults such as different types of micro-cavities caused during the manufacturing process and also metal splinters. These faults may cause local concentrations in the electric field thus exceeding the limit value of the field and causing consequently the phenomenon of Partial Discharges. The term “Partial Discharge” depends on the fact that this phenomenon occurs on microscopic level thus involving only a part of the existing...

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THERMAL LOSSES [watt] 6. THERMAL PROTECTION AND THERMAL PROBE FITTED INTO THE 9000 WINDINGS DTc CEff Cnom 6000 The thermal protection is the only strategy valid for protecting the motor! The DIRECT DRIVE motor from TECHNAI is provided with two types of thermal probe. 3500 watt The PTC thermal3000 probe is the predominant one to be used for protecting the motor against overtemperatures. If the PTC temperature probe intervenes, the drive must be rapidly disabled so that the converter of the drive does not continue supplying any current to the stator. This condition of thermal load is caused by...

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TORQUE MOTORS MK-CI SERIES Code

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PRODUCT CODE Output Cable Lenght Integration of new intermediate sizes CIC Model - A Technai exclusive Special winding configuration according with Technai technical department Greater heights are available on request

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