The V&T asynchronous servo system has successfully enabled Bock (Dongguan) to complete an energy-saving retrofit of its die casting machines.

Following project submission, Germany-based BOCK Group conducted a rigorous nine-month validation process before proceeding with a comprehensive retrofit of its 800T–1000T die casting machines. After an on-site inspection, German engineers were highly impressed by the energy-saving performance and even made a special visit to V&T’s booth at an industry exhibition to commend the technology.

In the table, the first row shows pre-retrofit data: 0.7058 kWh per mold.The second row shows post-retrofit data in energy-saving mode: 0.2511 kWh per mold, saving 0.4547 kWh per mold.
Based on 1,000 molds per day, 330 operating days per year, and an average electricity rate of CNY 0.8/kWh, the energy-saving benefits are calculated as follows:

After more than two years of real-world operation, the system has demonstrated significant advantages:

• Compact design – easy to install and maintain
• Simple operation – no specialized training or secondary commissioning required
• Outstanding energy savings – delivering a comprehensive electricity reduction of 45% to 60%