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【Success Case】Delivery of Potato Grading and Sorting Production Line in Indonesia

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“In the past, our sweet potato grading relied entirely on manual labor, which not only resulted in low efficiency but also made it difficult to unify grading standards, "said the Indonesian customer." Now we have finally achieved automated and high-precision sweet potato grading, significantly improving our product competitiveness.”

01 Project Background and Customer Challenges

An agricultural product processing enterprise located in Indonesia mainly engages in the procurement, sorting and sales of sweet potatoes. Over the years, they have been facing severe challenges in sweet potato processing.
The existing processing steps of the customers mainly rely on traditional manual methods, which not only result in low production efficiency but also lead to inconsistent sorting standards due to individual differences, resulting in uneven final product specifications and making it difficult to meet the demands of the high-end market. The customers have clear requirements for this production line upgrade:
  • The processing capacity needs to reach 500 KG/H;
  • It should be able to finely sort sweet potatoes into six grades according to size.
 
What they need is not just a machine, but a complete set of efficient, stable and adaptable solutions that can accommodate the diversity of sweet potato shapes.

02 Tailored Solutions

Based on the specific needs and challenges of the customers, we have designed a complete solution for sweet potato cleaning and sorting production line for them. This solution integrates the entire process of cleaning to precise sorting with full automation.
 
  • The core design concept of the scheme is modular combination and precise grading. The production line adopts the principle of roller gear grading, by gradually increasing the gap of the rollers, different-sized sweet potatoes fall at corresponding gaps to achieve precise size sorting.
  • The production line design includes eight main steps: bubble lifting, high-pressure brush cleaning, disinfection soaking, polishing and drying, drying, picking, grading and packaging. This design ensures the entire process of sweet potatoes from feeding to completion of sorting to be automated.
  • We have specially optimized for the irregular shape of sweet potatoes. The traditional vibration screen or roller gap sorting methods are usually only applicable to round or nearly round tubers, and are often difficult to achieve accurate sorting for irregularly shaped sweet potatoes. However, our roller gear grading system, through adjustment and optimization, can adapt to various shapes of sweet potatoes, greatly reducing sorting errors and improving sorting accuracy.

03 Key Technical Advantages and Equipment Characteristics

This sweet potato cleaning and sorting production line incorporates multiple advanced technologies, ensuring both efficient production and precise grading results.
 
  • The production line is made of stainless steel, and the key components are made of 304 food-grade stainless steel, ensuring the durability of the equipment and meeting the hygiene requirements for food processing. This material selection not only suits the humid processing environment but also facilitates daily cleaning and maintenance. 
  • In terms of sorting accuracy, the production line achieves precise classification into six grades, each with strict size standards. Compared to traditional manual sorting, the accuracy of machine sorting has increased by more than 40%, significantly reducing the error rate.
  • In terms of production capacity, the system is designed to have a production capacity of 500 KG/H, which fully meets the production requirements of customers. At the same time, the production line is designed to be compact, with a relatively small floor area, which improves the utilization of space.
  • The cleaning process combines bubble cleaning and high-pressure brush cleaning. Bubble cleaning can effectively remove the dirt on the surface of sweet potatoes, while the high-pressure brush can further clean the surface of sweet potatoes to ensure thorough cleaning.

04 Project Implementation and Outcomes

During the project implementation process, our technical team maintained close communication with the Indonesian clients to ensure that every step was in line with the local production environment and actual requirements.
 
  • After the production line was installed and debugged, it was put into use immediately. The results showed that the production line fully met the designed production capacity, capable of processing 500 kilograms of sweet potatoes per hour and precisely sorting them into six grades.
  • In terms of sorting accuracy, customer feedback indicated that the production line had strong adaptability to different-shaped sweet potatoes, and the sorting accuracy rate was significantly higher than traditional methods, basically eliminating sorting errors caused by irregular shapes. 
  • The application of this production line significantly improved the production efficiency of the customers. Compared with traditional manual sorting, the labor cost was reduced by approximately 60%, and the sorting speed was increased by more than three times. 
  • More importantly, the sweet potatoes that were precisely graded had a 15%-25% increase in market sales prices, and the investment return cycle for the customers was significantly shortened.

05 Customer Feedback and Industry Value

"The introduction of this production line has completely transformed our processing methods," said the production manager of the customer's factory. "Now we can consistently supply the market with uniformly sized and high-quality sweet potato products, and customer satisfaction has significantly improved."
 
The customer highly praised the durability and stability of our equipment. After months of continuous operation, the equipment's performance remained stable as before, with almost no instances of downtime or maintenance. This provided a strong guarantee for their continuous production.

06 Why Choose Union Machinery?

· Expert Team: End-to-end engineering support from design to commissioning.
· Global Expertise: 11+ years in food machinery, serving 50+ countries.
· Certifications: ISO9001 and CE compliant.
· Custom Solutions: Full-service support, including plant layout optimization.
· Support: 24/7 technical assistance, spare parts availability, 1-year warranty.
 

Act Now: Embark on Your Automation Transformation Journey
 
This cooperation not only reflects the technical strength of Union Machinery, but also confirms our service philosophy of "customer pain points oriented". Whether you are facing challenges such as capacity upgrading, compliance certification, cost control, or special material processing, we can provide a full cycle service from "requirement analysis - solution design - installation and commissioning - after-sales support".
 
Union Machinery, A global leader in food packaging, committed to enhancing customer competitiveness through innovative machinery. Complete export certification and 100% on-time project delivery rate.
 
Union Machinery —— Make every product a quality brand!



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