Injection System combines hydraulic and electric technology.

Press Release Summary:




PowerShot(TM) Injection System is a sealed, closed-loop actuator that requires no external power unit. Single servomotor controls entire system, including screw rotation of plasticizing screw. Injection and decompression control is accumulator driven, and controlled by servocartridge, which allows closed-loop control of velocity, pressure, and position. Package is installed with few connections to customer's machine, providing plug-and-play convenience.



Original Press Release:



Moog's New Powershot(TM) Injection System Combines Hydraulic and Electric Technology to Provide Superior Control, High Power and Energy Efficiency



EAST AURORA, N.Y. (May 8, 2003) - Moog has introduced the new Moog PowerShot(TM) Injection System that combines the best of electric and hydraulic technologies in a compact unit that can be
installed easily, and adapted to a wide variety of force, speed, and torque requirements. This unique system is designed for injection molding machines operating at high speeds and forces, which require precise control.

In recent years, there has been a strong trend in the plastics industry to move from hydraulic to electric machines. The PowerShot(TM) Injection System was developed in response to a need to provide machine builders with the benefits of high power, high speed, and accuracy, commonly found with hydraulic technology, as well as the low energy consumption, clean environment, low maintenance costs, and modular flexibility of electric technology. The Powershot- design effectively integrates Moog designed and built electric and hydraulic products into a compact package that provides the best of both worlds.

The PowerShot(TM) Injection System is a sealed, closed-loop actuator that combines electric and hydraulic technology in an energy efficient assembly that requires no external power unit. It uses a single servomotor to control the entire system, including the screw rotation of the plasticizing screw. Injection
and decompression (suckback) control is accumulator driven, and controlled by a Moog servocartridge, which allows closed-loop control of velocity, pressure, and position. The RKP Pump is used for closed-loop'control of backpressure during recovery, while recharging the accumulator for the next cycle. The PowerShot(TM) System uses the new Moog Servo Controller System (MSC), which interfaces with the customer's controller through a fieldbus. This compact package is installed with just a few connections to the customer's machine, offering "plug and play" convenience.

The PowerShot(TM) Injection System is an important new solution for the plastics industry, as it offers energy efficiency, and the power needed for optimum operation of high performance machines.
The energy efficiency of the PowerShot(TM) is superior to other high force, high speed systems, because the main servomotor and RKP pump are turned on only as needed during the recovery (plasticizing) portion of the cycle. Typically on hydraulic systems, the pump would be turning constantly, even when no
oil is required by the system, which reduces overall energy efficiency. All-electric systems do not have this drawback; however, they typically require one motor to control the screw rotation and an additional two or three motors for injection control. In addition these motors are turned on during the injection and injection hold portion of the cycle. By contrast, the servomotors in Moog PowerShot(TM) Injection system work only
when needed in order to provide maximum energy efficiency.

"The PowerShot(TM) Injection System has received a lot of attention from machine builders as it is a new solution for a problem they face. This is an ideal way to get the power for high force injection machines that all-electric solutions can't deliver," said David Geiger, Manager, Systems at Moog ICD and inventor of
PowerShot Injection System. "As a bonus it saves costs due to minimal oil usage, reduced energy consumption and easy, 'plug and play' installation."

Features of the Moog PowerShot(TM) Injection System include:
o Precise control for high power, high speed injection applications
o Effectively combines Moog's high performance products in a unique system that provides the best of Hydraulic and Electric technology
o Superior injection control for improved accuracy
o Customizable and scalable solution for a variety of customer-specific applications
o Sealed unit with only a few connections to the machine for easy installation
o Low energy consumption and clean environment
o No hydraulic power unit is required, which reduces costs
o Minimal oil usage

Moog Inc. is a leading supplier of precision servohydraulic and servoelectric control products and systems for industrial applications. For further information, contact Moog at 800-272-MOOG (6664) or visit our Web site at moog.com/PowerShot.

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