Maintenance Analysis of Ripple Mill Machine Using PERT Method at PT Ujong Neubok Dalam

  • Aulia Perlijar Universitas Teuku Umar
  • Masykur Universitas Teuku Umar
Keywords: Ripple mill, PERT method, Maintenance, Analysis


The purpose of this research is to control time and to anticipate the completion time of maintenance so that it is not late at PT Ujong Neubok Dalam (UND), and also to improve the implementation of maintenance both as cleaning, lubrication and as periodic checks. In carrying out its production, the company has various machine variations, one of which is the Ripple mill machine. In carrying out ripple mill machine maintenance using the PERT treatment method. The PERT method , or project evaluation and review technique, is a management science model for project planning and execution. The results showed that scheduling on a ripple mill machine was 23 hours or 95.49 % of the normal time. With a very high duration of performance, the greater the possibility of damage occurring, from the analysis that has been carried out, to minimize the damage that occurs to the ripple mill machine, the thing that must be done is to check the ripple mill machine every hour to ensure that there is no damage that can cause the ripple machine mill stopped working. When repairing a Ripple mill machine there are several components that must be provided such as Lubricants, Bearings, V-belt-SPB 2630Lw, Ripple Plate, Pully B3x5, Space Ring, Rotor axle, and 4mm MH360 Welding Wire. As for the work steps, the maintenance starts with checking the axle rotor and immediately following the other components. This maintenance is carried out every 3 months, except for the Ripple Plate and Pully B3x5, because these 2 components are replaced once every 6 months.


Download data is not yet available.


A. Azwirullah, S. Ali, and M. Saputra, “Analisa Performance Mesin Screw Press Menggunakan Metode Overall Equitment Effectiveness Di PT Ujong Neubok Dalam,” J. Mhs. Mesin, vol. 1, no. 2, pp. 18–28, 2022.

H. Pirnanda, M. Murhaban, and J. Supardi, “Analisa Kinerja Mesin Ripple Mill dengan Beban 9Ton/Jam dengan Menggunakan Mesin Penggerak Motor Listrik 15 Hp Di PT Agro Sinergi Nusantara,” J. Mhs. Mesin UTU, vol. 1, no. 1, pp. 90–95, 2022, [Online]. Available:

M. Susanti, “Analisis Perawatan (Maintenance) Mesin Ripple Mill Pada PT. Gersindo Minang Plantation Palm Oil Mill (GMP) – POM Tanjung Pangkal Pasaman Barat,” 2018.

Denur, L. Hakim, I. Hasan, and S. Rahmad, “PENERAPAN RELIABILITY CENTERED MAINTENANCE (RCM) PADA MESIN RIPPLE MILL,” J. Integr. Sist. Ind., vol. 4, no. 1, pp. 27–34, 2017.

M. Muzakar, M. Masykur, and J. Supardi, “Analisa Getaran Dan Kebisingan Pada Kernel Di PT . Beurata Subur Persada,” J. Mekanova Mek. Inov. dan Teknol., vol. 7, no. 2, pp. 175–183, 2021.

Y. D. Polewangi, “Analisis Sistem Perawatan Mesin Boiler pada Industri Kelapa Sawit,” Ind. Eng. J., vol. 8, no. 2, pp. 24–27, 2019, doi: 10.53912/iejm.v8i2.402.

C. Kirkpatrick and R. Levin, Perencanaan dan Pengendalian dengan PERT dan CPM (Network Planning). Jakarta: Balai Asahan, 1977.

Siswanto, Kesehatan Mental: Konsep Cakupan dan Perkembangannya. Yogyakarta: Andi Offset, 2007.

C. Kirkpatrick and R. Levin, Perentjanaan dan pengawasan dengan PERT dan CPM. Jakarta: Bhatara, 1972.

L. C. Ramadhanti, S. K. Ratoko, and R. E. Toyosito, “Analisis Waktu Penyelesaian Perawatan Mesin Pesawat,” J. Sains Terap. Dan Teknol., vol. 2, no. 1, pp. 41–49, 2021.

How to Cite
Aulia Perlijar and Masykur, “Maintenance Analysis of Ripple Mill Machine Using PERT Method at PT Ujong Neubok Dalam”, JI, vol. 8, no. 1, pp. 198-202, May 2023.