Production Improvement through Fixture Design: A Case Study of an Agricultural Machinery Parts Manufacturer

Authors

  • Bhoomboon Phontang Department of Industrial Engineering, Faculty of Engineering and Technology, Rajamangala University of Technology Isan
  • Jetnipat Pimollukanakul Department of Industrial Engineering, Faculty of Engineering and Technology, Rajamangala University of Technology Isan
  • Thamrong Gearam Department of Industrial Engineering, Faculty of Engineering and Technology, Rajamangala University of Technology Isan
  • Jittiwat Nithikarnjanatharn Department of Industrial Engineering, Faculty of Engineering and Technology, Rajamangala University of Technology Isan
  • Supattra Muparang Department of Industrial Engineering and Logistics, School of Engineering and Innovation, Rajamangala University of Technology Tawan-ok
  • Wannisa Nutkhum Department of Industrial Engineering, Faculty of Engineering and Technology, Rajamangala University of Technology Isan

DOI:

https://doi.org/10.14456/rmutlengj.2025.10

Keywords:

Karakuri Kaizen, Jig Fixture, Failure Mode and Effects Analysis, 7 QC Tools

Abstract

This case study focuses on a manufacturing company producing agricultural machinery parts. The company faced a significant challenge: it could not meet customer demand due to inefficiencies in the production process. The primary objective of this study was to enhance the production process by implementing a new Jig Fixture and leveraging the principles of karakuri kaizen. Through a thorough analysis of the production process, the Customer revealed that the daily demand was 350 units, while the company could only produce 280 units per day. The researchers employed engineering principles to address this issue, including 7 QC Tools and Failure Mode and Effects Analysis (FMEA). By identifying the root causes of the production bottlenecks, the team developed and implemented solutions involving a new workpiece holding device and Karakuri Kaizen automation. The results of these improvements were substantial. The cycle time per unit decreased from 96.22 seconds to 75.52 seconds, enabling the company to produce 362 daily units. The total production distance was reduced from 30.2 meters to 27.7 meters.

References

Thanakorn M, Worawit L, and Wannawisa U. Time Series Forecasting of Automotive Component Production. Acad J. Sci Technol. (AJST). 2023;1(3):1(3):185-200.

Jetnipat P, et al. Waste Reduction in the Assembly Process of Valve Production. Proceedings of the 14th Engineering Science Technology and Architecture Conference on Industrial engineering. 2023 Aug 25-26; Mung, Thailand. Kalasin; 2023;1348-1355.

Napaporn A, Patchara W. The Inventory Management for Motor Vehicles Replacement Equipment in Wholesale Trade Sector Influence in Response to Customer Requests. Mahamakut Grad Sch J. 2019; 17 (2):218-232.

Thamrong G. Enhancing efficiency in the production line of agricultural machinery components. B. Eng Thesis. Rajamangala University of Technology Isan; 2024.

Peter M, Naqib D. Production line automation project based of FMEA method. MM Sci J. 2020; 13(1):3912-3917.

Jittiwat N. QC 7 Tools in: Quality Control. Bangkok: OS Printing House; 2022;51-109.

Rattawut V. Development of maintenance systems by Failure Modes and Effects Analysis (FMEA) techniques: a case study of concrete products industry. J. Eng Innov. 2023; 16(3):59-69.

Nor Azinee S, Muhammad Afiq R, Norsilawati N, et al. Design and Fabrication of Jig and Fixture for Drilling Machine in the Manufacturing Industry to Improve Time Productivity. J. Adv Res Appl Sci Eng Technol. 2023; 29(2):304-313..

Harshwardhan CP. Jigs and Fixtures in Manufacturing. Int J. Eng Res Appl. 2022; 12(10):50-55.

Syed Mustafa H, Abbas H, Shaheryar Atta K, Naeem S, Amir N. Design, Fabrication, and Analysis of a Precision Drilling Jig for Waste Reduction: A Low-cost Solution. J. Kejuruteraan. 2024; 36(1):259-271.

Kataria Mahendra B, Patel Neha H, Bhimani J. Design and Development of JIG for an Auto Part. Int J. Eng Dev Res. 2017; 5(1): 748-753.

Charles Chikwendu O, Ezeanyim Okechukwu C. The Design and Need for Jigs and Fixtures in Manufacturing. Sci Res. 2015; 3(4):213-219.

Jetnipat P, Surachai N, Worawut P, Jittiwat N and Wannisa N. Design Jigs and Fixtures to Reduce Time in the Bevel Milling of Workpiece. J. Manuf Manag Technol. 2024; 3(1): 38-48.

Nuchsara K, Preecha K, Parinya P. Silver Box Production Efficiency Improvement: A Case Study. J. Sci Technol. 2022; 24(3): 30-38.

Vijay S, Gomathi Prabha M. Work standardization and line balancing in a windmill gearbox manufacturing cell: A case study. Materials Today: Proceedings. 2020; 49:9721-9729.

Pichawadee K, et al. Development of Material Handling Equipment in a Paint Factory with Karakuri Kaizen. J. King Mongkut’s Univ Technol. 2024; 34(3): 1-17.

Pakpoom J, Siwasit P, Suwannee S, Nuhjarin S and Parida J. Improvement of Motorcycle Wheel Hubs Conveyor rail Process by Poka-yoke Techniques. Ladkrabang Eng J. 2023; 40(2):138-146.

Chaiwat K, et al. Productivity improvement of material handling using Karakuri Kaizen handtruck: A case study of Phuwiangwari community enterprise. RMUTSB Acad J. (Humanit. Soc. Sci.). 2024; 12(1):80-92.

Krittapak P, et al. The case study company implemented the kaizen technique to improve the efficiency of control component manufacturing process. Proceedings of the 14th Engineering Science Technology and Architecture Conference on Industrial engineering; 2023 Aug 25-26; Mung, Thailand. Kalasin; 2023; 1391-1396.

Chatpon P, Banthita P Ponatong and Siwaporn N. Waste reductionin khao tu production process of agriproduct processing groups. Ind Technol J. 2022; 7(2):113-122.

Mongkol K, Ariyapong P, Ratchaneekorn D, Thiwarat S and Narathip P. Marketing Strategies Formulation Using Sale Reduction Root Cause Analysis: A Case Study of Herbal Soap Community Enterprise. Thai Ind Eng Netw J. 2023; 9(1):74-86.

Jiranan K and Prachuab K. Reducing the Failure Rate of Dishwashersby Analyzing the ServiceLife of Spare Partsusing System Reliability Calculation. J. Ind Technol. 2023; 19(1):1-16.

Warathorn P. Failure Mode and Effects Analysis for a Maintenance System Development: A Case Study of Meat Processing. Ladkrabang Eng J. 2016;33(4): 24-31.

Wu Z, Liu W, Nie W. Literature review and prospect of the development and application of FMEA in manufacturing industry. Int J. Adv Manuf Technol. 2021;112(6):1409-1436.

Suphawat M and Jeerawat P. Deffects reduction in polymer solid capacitor production process. Kasem Bundit Eng J. 2017;7(1):105-122.

Daniel M. McCarthy and Russell S. Winer. The Pareto rule in marketing revisited: is it 80/20 or 70/20?. Mark. Lett. 2019;30(2):139-150.

Aynur GÜRSOY ÖZCAN. Application of reba and karakuri kaizen techniques to reduce ergonomic risk levels in a workplace. J. Eng Sci Des. 2022;10(40:1430-1444.

Jaruwan P and Teerapat J. Machine Maintenance Planning for Pelletizing Processes using FMEA Technique, A Case Study of the Pellet Biomass Factory. J. Ind Technol. 2020;8(1):1-12.

Panya S, Naphob S, Suphot R, Burapa D, Sumet P, Wasan R and Ploypailin V. The Improving Productivity in Seasonal Product Manufacturing by Motion and Time Study and Jig Design. Thai Ind Eng Netw J. 2024; 10(1):51-59.

Kataria M, Bhimani J. Design and Development of jig for an auto part. Int J. Eng Dev Res. 2017;5(1):748–753.

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Published

2025-12-16

How to Cite

Phontang, B. ., Pimollukanakul, J., Gearam, T. ., Nithikarnjanatharn, J. ., Muparang, S. ., & Nutkhum, W. . (2025). Production Improvement through Fixture Design: A Case Study of an Agricultural Machinery Parts Manufacturer. RMUTL Engineering Journal, 10(2), 10–21. https://doi.org/10.14456/rmutlengj.2025.10

Issue

Vol. 10 No. 2 (2025): July-December

Section

Research Article

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