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Design and Performance Evaluation of a Soybean Filtration Machine Utilizing an Electric Motor and Low-Torque Gearbox

Rekayasa · Vol. 23 No. 1 (2025) · pp. 30–40

DOI
10.15294/rekayasa.v23i1.19394
ISSN
2527-6964, 0216-6631
Published
2025-07-31
Publisher
Universitas Negeri Semarang
Language
eng

Abstract

The traditional soybean filtration process in small- and medium-scale tofu industries remains inefficient due to labour-intensive operations, inconsistent extract quality, and high processing time. Manual pressing methods often result in reduced extract yield, uneven texture, and contamination risks. Therefore, this study aims to design and evaluate a soybean filtration machine powered by an electric motor and a low-torque gearbox, with the goal of improving efficiency, hygiene, and mechanical reliability. The research employed a Research and Development approach using the Four-D model: define, design, develop, and disseminate. A 0.5 hp electric motor was integrated with a 1:20 ratio gearbox to achieve stable rotational motion for the reciprocating filter system. The mechanical analysis indicated a total working force of 613.725 N, a motor torque of 61.37 Nm, and an output torque of 1,105 Nm after accounting for efficiency. The system demonstrated low structural deflection (0.405 mm) and a high safety factor of 3.81, confirming robust mechanical integrity. Experimental testing yielded a filtration efficiency of 93% and an average flow rate of 1.2 L/min, showing a 70–80% reduction in processing time compared to manual filtration. The feasibility assessment resulted in an 88.63% approval rating from operators, classifying the machine as highly feasible. Overall, the designed system effectively improves productivity, ergonomics, and product consistency in soybean-based food processing.

Keywords

Collaboration network of the authors

27 authors · 63 co-authorship links

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Co-authorOrganisationJoint articles
Sonika MaulanaAffiliation unknown2
Sarwi AsriAffiliation unknown1
Riska Dami RistantoAffiliation unknown1
Gandhi Satria MuktiAffiliation unknown1
Irzhafran Ridho PradanaAffiliation unknown1
Tian You-heAffiliation unknown1
Najib FatkhurokhmanAffiliation unknown1
Haris NubliAffiliation unknown1
AbdurrahmanAffiliation unknown1
Firdaus AudtiyaAffiliation unknown1
Rizqi Fitri NaryantoAffiliation unknown1
Samsudin AnisAffiliation unknown1
Widodo AdiAffiliation unknown1
Wildan NauvalAffiliation unknown1
Ahmad ZuhriAffiliation unknown1
Profit WiraardiAffiliation unknown1
Rizqi Fitri NaryantoAffiliation unknown1
Faisal Abdul AzizAffiliation unknown1
Aris BudiyonoAffiliation unknown1
Mochamad Ervando Among SatmokoAffiliation unknown1
Rusiyanto -Affiliation unknown1
Darun NaimAffiliation unknown1
Karnowo KarnowoAffiliation unknown1
Suwandi MarwotoAffiliation unknown1

Affiliations come from OpenAlex; journal OAI-PMH metadata carries none. Authors without an OpenAlex ID are matched by name, which can merge or split people.

Metadata source: OAI-PMH (metadata jurnal) https://journal.unnes.ac.id/journals/rekayasa/oai, first harvested 6 Nov 2026, last seen 8 Nov 2026.
Original metadata (oai_dc) 
<oai_dc:dc xmlns="http://www.openarchives.org/OAI/2.0/" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:oai_dc="http://www.openarchives.org/OAI/2.0/oai_dc/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/oai_dc/  http://www.openarchives.org/OAI/2.0/oai_dc.xsd">
	<dc:title xml:lang="en">Design and Performance Evaluation of a Soybean Filtration Machine Utilizing an Electric Motor and Low-Torque Gearbox</dc:title>
	<dc:creator xml:lang="en">Nur Fatta, Muhammad Affa </dc:creator>
	<dc:creator xml:lang="en">Dwi Saputro, Danang</dc:creator>
	<dc:creator xml:lang="en">Hidayat, Hanif</dc:creator>
	<dc:subject xml:lang="en">ergonomic design</dc:subject>
	<dc:subject xml:lang="en">filtration efficiency</dc:subject>
	<dc:subject xml:lang="en">mechanical reliability</dc:subject>
	<dc:subject xml:lang="en">process optimization</dc:subject>
	<dc:subject xml:lang="en">stainless steel system</dc:subject>
	<dc:description xml:lang="en">The traditional soybean filtration process in small- and medium-scale tofu industries remains inefficient due to labour-intensive operations, inconsistent extract quality, and high processing time. Manual pressing methods often result in reduced extract yield, uneven texture, and contamination risks. Therefore, this study aims to design and evaluate a soybean filtration machine powered by an electric motor and a low-torque gearbox, with the goal of improving efficiency, hygiene, and mechanical reliability. The research employed a Research and Development approach using the Four-D model: define, design, develop, and disseminate. A 0.5 hp electric motor was integrated with a 1:20 ratio gearbox to achieve stable rotational motion for the reciprocating filter system. The mechanical analysis indicated a total working force of 613.725 N, a motor torque of 61.37 Nm, and an output torque of 1,105 Nm after accounting for efficiency. The system demonstrated low structural deflection (0.405 mm) and a high safety factor of 3.81, confirming robust mechanical integrity. Experimental testing yielded a filtration efficiency of 93% and an average flow rate of 1.2 L/min, showing a 70–80% reduction in processing time compared to manual filtration. The feasibility assessment resulted in an 88.63% approval rating from operators, classifying the machine as highly feasible. Overall, the designed system effectively improves productivity, ergonomics, and product consistency in soybean-based food processing.</dc:description>
	<dc:publisher xml:lang="en">Universitas Negeri Semarang</dc:publisher>
	<dc:date>2025-07-31</dc:date>
	<dc:type>info:eu-repo/semantics/article</dc:type>
	<dc:type>info:eu-repo/semantics/publishedVersion</dc:type>
	<dc:type xml:lang="en">Peer-reviewed Article</dc:type>
	<dc:format>application/pdf</dc:format>
	<dc:identifier>https://journal.unnes.ac.id/journals/rekayasa/article/view/19394</dc:identifier>
	<dc:identifier>10.15294/rekayasa.v23i1.19394</dc:identifier>
	<dc:source xml:lang="en">Rekayasa; Vol. 23 No. 1 (2025); 30-40</dc:source>
	<dc:source>2527-6964</dc:source>
	<dc:source>0216-6631</dc:source>
	<dc:source>10.15294/rekayasa.v23i1</dc:source>
	<dc:language>eng</dc:language>
	<dc:relation>https://journal.unnes.ac.id/journals/rekayasa/article/view/19394/7306</dc:relation>
	<dc:rights xml:lang="en">Copyright (c) 2025 Rekayasa</dc:rights>
</oai_dc:dc>