C-70T-4001E51B

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The C-70T-4001E51B servo motor delivers a rated output of 60 W, a rated torque of 0.19 Nm, a continuous stall torque of 0.24 Nm, and a maximum rotating speed of 5000 rpm. Part of the Super DC Servo Motors series by Sanyo Denki, it also features a rated armature voltage of 75 V and a torque constant of 0.183 Nm/A.

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Product Description:

The C-70T-4001E51B product code by Sanyo Denki refers to a DC Servo Motor. It belongs to the Super DC series of servo motor. It is manufactured by the company to serve industrial automation applications. It delivers a continuous power output of 180 watts and operates at 85 volts DC. The current requirement of this motor is 3 A.

The C-70T-4001E51B servo motor is designed to rotate at the constant speed of 2000 min-1. The motor includes a built-in tacho generator with feedback of 7 volts per 1000 rpm. This provides accurate speed monitoring for closed-loop control systems. The shaft has a length of 1-3/4 inches and a diameter of 14 millimeters. It is equipped with an incremental optical encoder for position and speed detection. The resolution of the attached encoder is 500 P/R. Its input voltage range for the encoder is between 6.65 and 7.35 volts. The encoder is ideal for industrial motion control and robotics applications. The insulation class of the C-70T-4001E51B servo motor is Class B and is rated for up to 130°C operation. It features an enclosed design that is suitable for dusty or damp environments. It includes a keyway shaft for secure mechanical coupling with loads.

The C-70T-4001E51B servo motor operates with a maximum ambient temperature of 40°C during continuous operation. The motor can operate under 20% to 85% (non-condensing) humidity range. It can handle vibration levels up to 4.9 m/s² without performance loss. It works up to a height of 1000 MSL. Its frame is built from durable steel with precision-machined mounting surfaces. The device uses standard mounting dimensions as per the industry motor size 70. It supports clockwise and counterclockwise rotation directions.

Armature Inductance
5 mH
Armature Winding Resistance
11.7 Ω
Continuous Stall Torque
0.24 Nm
Instantaneous Maximum Torque
1.8 Nm
Maximum Rotating Speed
5000 rpm
Rated Armature Current
1.2 A
Rated Armature Voltage
75 V
Rated Output
60 W
Rated Rotating Speed
3000 rpm
Rated Torque
0.19 Nm
Rotor Inertia
0.000013 kg·m²
Stall Armature Current
1.3 A
Thermal Resistance
2.8 K/W
Torque Constant
0.183 Nm/A
Voltage Constant
0.0191 V/min⁻¹

Frequently Asked Questions about C-70T-4001E51B:

Q: How is speed feedback provided by C-70T-4001E51B servo motor?

A: The C-70T-4001E51B servo motor integrates a Tachogenerator producing 7 V per 1000 rpm, delivering linear speed feedback for accurate velocity regulation in servo loops.

Q: What encoder configuration is used in C-70T-4001E51B servo motor?

A: The C-70T servo motor features a 500 ppr incremental optical encoder, operating between 6.65 - 7.35 V, offering consistent pulse signals for position and speed control.

Q: What are the electrical input ratings for C-70T-4001E51B servo motor?

A: The servo motor runs at 85 V DC and draws a rated current of 3 A, delivering 180 W continuous power in energy-efficient automation setups.

Q: What shaft specifications define the C-70T-4001E51B servo motor interface?

A: The motor uses a 14 mm diameter, 1-3/4″ long keyed shaft to enable secure load attachment in rotary actuators and mechatronic systems.

Q: What motion control features does C-70T-4001E51B servo motor support?

A: The C-70T-4001E51B servo motor supports bidirectional rotation, making it adaptable to clockwise and counterclockwise motion applications in robotics and conveyors.


Internal Product Review

  • ‘‘The C-70T-4001E51B is a compact DC servo motor from Sanyo Denki built for accurate, low-power motion systems. It delivers 180 W at 2000 rpm, with a 3 A rated current and 500 PPR encoder. This motor is widely used in automated textile machinery for precise speed and tension control applications.’’

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