【Case Study】From hydraulic drive to inverter drive! Shortened production schedule

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last updated：Nov 18, 2022

The existing MARK 3 was upgraded from hydraulic drive to inverter drive. This led to a reduction in the production schedule and a decrease in consumables, resulting in cost savings.

We received an inquiry from Company N, a manufacturer producing refined white sugar as a pharmaceutical additive, stating, "We are currently using an existing MARK 3 hydraulic machine, which is aging, and we are considering upgrading to an inverter type. However, since we operate 24 hours, switching from hydraulic to inverter with two motions will extend the production schedule due to longer start-up and braking times. We want to shorten the schedule as much as possible." In response, we proposed and delivered an inverter type with one motion instead of the existing two-motion scraper, as reducing start-up and braking times would cause it to stop due to overload. In terms of the movement of the scraper component: - In the case of two motions, the sequence is: engagement → descent → retraction → ascent. - In one motion, the sequence is: engagement → retraction only. By adopting one motion, we can shorten the production schedule. Our technical department calculated the time estimates for the one-motion setup, confirming that production could be achieved with a schedule nearly identical to the hydraulic system. Additionally, since there are no consumable scraper bellows, we could also reduce costs. This proposal was well received and highly evaluated by the client. *For more details, please refer to "Basic Information."*

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basic information

【POINT】Time reduction in the scraping process with a single motion scraping mechanism By equipping the centrifugal separator with a single motion scraping type, the time required for the scraping process has been shortened, allowing production at your desired operating cycle. Our inverter-driven scraping devices come in two types: 1. A two-motion type that performs a turning motion after the small blade engages and a vertical motion. 2. A one-motion type that performs only a turning motion to scrape off the cake with a large blade in one go. The advantages of the inverter-driven system include easier handling for various settings, maintenance, and daily operation compared to hydraulic systems. However, a disadvantage is that inverter drive systems take longer for starting and stopping compared to hydraulic drives. To address this, we proposed changing the scraping device from the existing two-motion type to a one-motion type. As a result, it has become possible to update to an inverter-driven system that meets the customer's requirements without significantly changing the operating conditions. *For more details, please check the link or feel free to contact us.

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Applications/Examples of results

【Applications】 ■ Pharmaceutical industry ■ Food industry ■ Industrial waste industry, etc. *For more details, please refer to the catalog or feel free to contact us.

Detailed information

■2 motion types: A turning motion and a lifting motion that occur after the small blade bites in and descends.
■1 Motion Type: A large blade that quickly scoops off the cake in a swirling motion.