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Medium Voltage AC VFD Drives for Plastic Extruder Machines

Medium Voltage AC VFD Drives for Plastic Extruder Machines

Place of Origin : China

Brand Name : GANDO

Model Number : 660V-G7-__KW

Certification : CE

MOQ : 1 set

Delivery Time : 2 days

Payment Terms : TT, L/C, Western Union, Paypa

Supply Ability : 200 sets per week

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Medium Voltage AC VFD Drives for Plastic Extruder Machines

Extrusion machines are used to create product by forcing raw material, such as plastic, through a die. Extruders are used to create a wide range of products such as tubing, sheet goods, and insulation. Food processing is a popular application for extruders. Extruders employ a main drive motor to supply power to a screw, which provides the force necessary to push the raw material through the die.

Application Challenges

  • Replace hydraulically operated or DC powered drives
  • Precise speed control while material is being extruded
  • Develop high torque at very low speeds

Features of G7 matching extruder application



Open Loop Vector and V/Hz Control with Torque Compensation

Provides excellent breakaway torque for thick materials and constant torque to maintain mixing speeds under heavy loads.

Overtorque Detection

Provides early warning of damaging torque levels as a result of seizing mixer blades.

Torque Reference programmable to an analog output

The applied mixing torque is fine tuned or adjustable for different material.

Preset frequency reference

Preset mixing patterns can be established for different materials.

Auto-Restart after momentary power loss

Mixing can quickly restart after fault or momentary power loss. This keeps perishable foods from spoiling in process.

Power loss Ride-Through

The mixing process in not interrupted during brief power loss (< 5 ms).

Power range of G7 VFD

Voltage: 660VAC (450VAC – 690VAC)

Power: 22kw/30HP – 400kw/535HP

Specification of G7 VFD



Input frequency


Output frequency


Overload current

150% rated current 1min.

Control mode

Close-loop vector control, sensor-less vector control, V/F control

Starting torque

150% 1hz (with PG 0hz)

Control precision

±0.2% (With PG ±0.02%)

Torque precision


Setting frequency resolution

Digital command 0.01hz; analog command 0.03hz/60hz

Output frequency resolution


Frequency setting signal


Protection function

Over voltage, under voltage, over load, relay, overheat speed stall, grounding, instant power cut compensation( within 2 sec for operation mode. Continue to operate after the power is available), Charging protection( not to display when the dc voltage of main circuit is less than 50v)



Cooling mode

forced air cooling


Less than 0.2g for 20hz

Ambient temperature / Humidity

-10 Degrees~+40 Degrees / 20~90%Rh (no condensation)


A variable-frequency drive (VFD) is a system for controlling the rotational speed of an alternating current (AC) electric motor by controlling the frequency of the electrical power supplied to the motor. A variable frequency drive is a specific type of adjustable-speed drive. Variable-frequency drives are also known as adjustable-frequency drives (AFD), variable-speed drives (VSD), AC drives, microdrives or inverter drives. Since the voltage is varied along with frequency, these are sometimes also called VVVF (variable voltage variable frequency) drives.

Product Tags:

medium voltage variable frequency drives


medium voltage


medium voltage inverter

Quality Medium Voltage AC VFD Drives for Plastic Extruder Machines for sale

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