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All Journal IRA Jurnal Teknik Mesin dan Aplikasinya (IRAJTMA)
Nelson Silitonga
Politeknik Teknologi Kimia Industri Medan
Automotive Engineering Energy Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering

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Analisis Parameter Kinerja Mesin Granulator dalam Proses Produksi Pupuk NPK Nurlianna Tarigan; Karti Karti; Nelson Silitonga; Immanuel Yorlando Simanjuntak
IRA Jurnal Teknik Mesin dan Aplikasinya (IRAJTMA) Vol 5 No 1 (2026): April
Publisher : CV. IRA PUBLISHING

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56862/irajtma.v5i1.292

Abstract

The process of making NPK fertilizer in granular form is greatly influenced by the performance of the granulator machine used. The granulator plays an important role in producing fertilizer granules with a consistent size, hardness, and homogeneity to meet quality standards and facilitate distribution and field application. This study aims to analyze the performance parameters that affect the efficiency of granule formation in NPK fertilizer and the influence of the granulator on the granule formation process. The research method involved direct observation of the production process and testing the quality of the granules, including particle size distribution, mechanical hardness, and frictional resistance. The results of the study show that, at a granulator rotation speed of 21 rpm and a torque of 28.5 N · m, the NPK fertilizer manufacturing process produces an effective capacity of 24,384 kg/hour. And shows that the more optimal the control of the work parameter settings, the higher the process efficiency and the quality of the NPK fertilizer granules produced.
Analisis Volume Udara yang Dibutuhkan Blower dalam Pemindahan Tepung Tapioka dari Unit Dryer ke Unit Shifter Nurlianna Tarigan; Nelson Silitonga; Ivo Jones Sitorus
IRA Jurnal Teknik Mesin dan Aplikasinya (IRAJTMA) Vol 4 No 1 (2025): April
Publisher : CV. IRA PUBLISHING

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56862/irajtma.v4i1.178

Abstract

This study aimed to calculate the volume of air required by a blower to transfer tapioca flour from the dryer unit to the shifter unit in a factory with a production capacity of 35 tons per day. The flour transfer process utilizes a blower to generate sufficient airflow. Still, it often experiences instability caused by factors such as blower speed fluctuations, material load variations, and pipe blockages. The research was conducted over one month using data collection methods that included interviews and direct observation. Analysis results showed that the cross-sectional area of the blower pipe was 0.6358 m², the airflow velocity was 1.517 m/s, and the airflow rate reached 0.965 m³/s. The total air volume required by the blower to move the flour was calculated to be 27,792 m³ per day. The findings highlight the importance of properly regulating and maintaining the blower system to ensure efficiency in tapioca flour production.
Efisiensi Pompa Hidrolik untuk Aktuator Pintu Sterilizer di PT. Torus Ganda Tambusai Timur Firdaus. H. Dongoran; Nelson Silitonga
IRA Jurnal Teknik Mesin dan Aplikasinya (IRAJTMA) Vol 3 No 1 (2024): April
Publisher : CV. IRA PUBLISHING

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56862/irajtma.v3i1.94

Abstract

PKS PT. Torus Ganda Tambusai Timur, located in Tambusai Village, Tambusai District, Rokan Hulu Regency, is a palm oil factory that produces Crude Palm Oil (CPO) with a production capacity of 60 tons of FFB per hour. The processing processes at this PKS include weighing, boiling, pressing, pulverizing, refining, and extracting the core at PKS PT. East Tambusai Double Torus, the Sterilizer used is a Horizontal Sterilizer, which has an elongated cylinder shape and is positioned horizontally using lorry transportation to transport fresh fruit bunches. The boiling process uses saturated steam with a three-peak boiling system. This research aims to determine the efficiency of the hydraulic pump needed to move the actuator on the Sterilizer door at PT. East Tambusai Double Torus. The object of this research is the Horizontal Sterilizer at PKS PT. East Tambusai Double Torus focuses on determining the efficiency of the hydraulic pump needed to drive the actuator on the Sterilizer door and maintaining the hydraulic pump. The conclusion of this research shows that maintenance is essential in a factory because it helps manage company expenses. After observations and discussions, the efficiency of the hydraulic pump in moving the actuator on the sterilizer door was obtained at 86%.
Co-Authors Firdaus. H. Dongoran Immanuel Yorlando Simanjuntak Ivo Jones Sitorus Karti Karti Nurlianna Tarigan