Maintenance of machines and equipment according to TPM: Optimizing performance

The application of planned maintenance of equipment and machinery according to the overall equipment performance maintenance (TPM) tool has helped Duy Khanh Engineering Co., Ltd. reduce the number of failure to stop production from 23 cases. down to 11 after 1 month of implementation, the milling capacity in the clamping process increased by 10 times.

As one of the main mechanical enterprises of the city. In Ho Chi Minh City, September 2019, Duy Khanh Mechanical Co., Ltd. decided to register to participate in the TPM Pilot Application Support Program for industrial enterprises of the Department of Science and Technology (Ministry of Industry and Trade). with the goal of improving productivity and quality in businesses.

The Department of Science and Technology – said: The program was implemented with the desire to help businesses maintain the comprehensive productivity of equipment through the construction and implementation of equipment maintenance programs, identifying and minimizing losses in the production process. From there, increase productivity, improve a professional and safer working environment.

The TPM program was implemented in Duy Khanh Engineering from October to December 2019. During the 3 months of joining the program, the company had 8 working sessions with experts and was instructed directly by experts at the factory. The company has chosen to pilot with CNC machines No. 9 and 10. Experts give 3 pillars to deploy, which are: Self-maintenance (AM); Planned maintenance (PM) and centralized improvement (FI).

Specifically, for AM pillars, the company performs clean equipment cleaning like when they first bought it. In the process of cleaning equipment, the team of experts and maintenance workers discovered the places where the red card needed to be hung, then had solutions to fix and repair in time. The pictures in the cleaning process are used to document basic cleaning of equipment (cleaning, lubricating, checking, tightening – CLIT). The results recorded after 2 months showed that CNC machines operate more stably, reducing minor errors that cause machine stops. Realizing the benefits of cleaning equipment in the AM pillar, the company has replicated this activity to 9 more machines.

For PM pillars, after performing maintenance and full maintenance for 2 CNC machines No. 9 and 10, the number of failures to stop production from 23 cases in October 2019 to 11 cases has been reduced. November 2019. With the above benefits, the company decided to prioritize maintenance schedule for 104 expansion machines for 104 machines in 2020.

At the same time, for the FI pillar, the company has improved the clamping for the milling machine to increase efficiency from clamping 1 product / time to 10 products / time. In addition, the company has also improved the knife grinding process, reducing the time needed to improve knife sharpening capacity from 2 to all electromechanical and operator staff.

Thus, it can be affirmed that implementing TPM helps businesses optimize performance, eliminate problems and errors of machines and equipment through self-maintenance in the daily production process. This helps enterprises to rationalize production costs, improve product and service quality, and improve their competitiveness in the market.

With the results achieved, Mr. Do Phuoc Tong – Chairman of the Board of Members of Duy Khanh Engineering Company Limited – affirmed that in 2020 and the following years, the company will plan and deploy, replicate TPM for all. the remaining machines. At the same time, combine with 5S tools to achieve the highest improvement efficiency.

Productivity and Quality Office