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Drives suit compressed air systems

A Lenze product story
Edited by the Engineeringtalk editorial team Oct 9, 2007

The IceTech range of blasting equipment employs a high-pressure pump powered by a single three-phase 230V 50Hz motor to propel the dry ice pellets into a compressed air stream.

Lenze SMD drives provide the flexibility, simplicity and small footprint required for driving compressed air systems in IceTech's mobile dry ice blasting machines.

IceTech required the SMD drives to operate on variable voltage inputs, avoiding the need to change motors and product design.

IceTech has developed a broad range of static and portable dry ice cleaning machines that can be used to remove dirt, coatings and lubricants.

The nonabrasive nature of dry ice blasting offers advantages over traditional sand and plastic particle-based industrial cleaning methods by avoiding damage to surfaces, contamination and the risk of waste material becoming trapped in moving components and hard to reach places.

Any commercial cleaning device needs to be tough in order to be a success and so IceTech required a simple and reliable drive that was flexible, but also field-proven and competitively priced.

The IceTech range of blasting equipment employs a high-pressure pump powered by a single three-phase 230V 50Hz motor to propel the dry ice pellets into a compressed air stream.

IceTech investigated the most effective drive system to use on its machines.

After consulting Lenze Denmark, the company specified 0.75 and 1.5kW SMD frequency inverter drives to regulate the motor and pump speed, as they were the simplest and most economic units available for the application.

When exporting to countries like Japan, IceTech also needed to modify the machines to operate with a single-phase 90V supply.

Lenze SMD drives provided the answer again with a "voltage doubling" feature that will automatically double the output voltage, allowing the same motor size to be used in the Japanese export models as in European models.

Further economic benefits include the fact that these SMD drives also use the same footprint, avoiding the need for panel reconfiguration and associated design costs.

The SMD range offers three-phase AC output from both single-phase and three-phase supply voltages.

Options include DIN rail mounting kits, removable heat sinks for through-cabinet mounting and dynamic braking units, which are easily mounted within the control cabinets.

Find out more about this article. Request a brochure, download technical specifications and request samples here.

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