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
Applicable Products
Drives Products | Servo and Motion Products
| Drives Products | Features | Benefits |
| Dwell and Timer Functions | Allows the drive to operate automatically without setting up an external run sequence. |
| Variable acceleration and deceleration times | The drive allows the user to switch easily to different acceleration and deceleration preset times when working with softer mixtures or harder mixtures. |
| Multi-Step Frequency Reference | A 17-step Preset Speed Reference is available when working with difficult mixtures of various materials. |
| Frequency Upper/Lower Limit | The drive is constrained to run within the Upper and Lower Frequency Limits even if a value outside that range is entered accidentally. |
Adjustable Speed Control
Trim Control | A push button UP-DOWN switch can be used to make incremental speed adjustments instead of an analog speed pot input. Use Trim Control function to make fine adjustments to the extruder speed. |
| Overtorque and Undertorque Detection | The drive is capable of detecting the consistency of mixtures and protect the load by using Overtorque and Undertorque Detection. |
Torque Limit,
Stall Prevention During Accel/Decel,
Stall Prevention During Run | The drive is capable of both protecting the load and detecting any foreign materials introduced to the mixture by setting optimal values for Torque Limits, Stall Prevention During Accel/Decel, and Stall Prevention During Run. |
| Speed Estimation | The AC drive can automatically restart a Spinning Motor with "Speed Estimation-Speed Search” following a momentary power loss or fault condition. |
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| Servo and Motion Products | Features | Benefits |
| Machine control capabilities in single-axis controller | Reduce third-party devices by combining machine control with motion control |
| EtherNet/IP communication option | Sigma-5 w/ MP2600iec can act as master or slave device |
| MotionWorks IEC Programming Software | IEC61131-3 based programming makes new production runs only a few mouse clicks away |
| Variable ratio digital gearing | Independently driven axes can be perfectly synchronized |
| Ethernet based motion controller | Provide real-time data monitoring and connectivity to a range of devices including Yaskawa AC drives |
| Distributed control of up to 8 axes | Control up to 8 distributed SMC3010 axes |
| YTerm Programming Software | Faster development time available |
| High resolution serial encoder | Up to 20-bit resolution translates into excellent speed and torque ripple characteristics. High noise immunity if afforded by serial encoder technology utilizing error-checking algorithms. |
| High torque to inertia ratio | Dynamic performance in a small space-saving design |
| Auto ID Encoder | Machine commissioning requires no loading of motor data into the amplifier – plug and play operation |
| Speed range of 5000:1 | Improved control at low speed to properly drive screw across wide speed range |
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Application Details
The extruder main drive motor supplies power to the extruder screw providing the force necessary to push the raw material through the die.
Yaskawa motion control products and AC drives are digitally controlled and designed to develop high torque at low speeds. Since the extruders are often started with the barrels full of dense material; such as plastic, they need to quickly develop a large amount of torque to overcome the inertia.
The precise control of speed offered by Yaskawa products allow the operator of the extrusion machine to repeatedly produce products that are within design tolerances. Some features are designed to protect the equipment. Torque limiting controls protect the motor from overload if the mixture’s consistency changes.
Yaskawa drives include built-in application expertise. If the operator accidentally enters a value outside of the upper or lower speed limits, the Yaskawa drive continues to keep the speed within limits. Acceleration and deceleration controls allow the operator to easily change from hard to soft mixtures.
Yaskawa motion control solutions include application programming flexibility and integration to a wide variety of third-party devices. Recipe tables can easily be created offering great flexibility for various product runs. Acceleration and deceleration controls allow the operator to easily change from hard to soft mixtures without ever worrying about specific values.
Additional Information
The pdf contains the same information as the web, but in some cases may contain more and should be used if a printed version is required.
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