cover
Contact Name
Danar Susilo Wijayanto
Contact Email
danarsw@staff.uns.ac.id
Phone
+628122881713
Journal Mail Official
nozel@fkip.uns.ac.id
Editorial Address
Program Studi Pendidikan Teknik Mesin Fakultas Keguruan dan Ilmu Pendidikan Universitas Sebelas Maret Surakarta Kampus V UNS Pabelan Jl. Ahmad Yani 200 Pabelan Sukoharjo, Jawa Tengah, Indonesia
Location
Kota surakarta,
Jawa tengah
INDONESIA
Nozel : Jurnal Pendididikan Teknik Mesin
ISSN : -     EISSN : 2656713X     DOI : https://doi.org/10.20961/nozel
Core Subject :
NOZEL : Jurnal Pendidikan Teknik Mesin is a national forum for the publication and dissemination of original work which contributes to greater scientific understanding of the main disciplines underpinning the mechanical engineering and vocational education. This international journal is dedicated to the latest advancements in mechanical engineering and vocational education. The goal of this journal is to provide a platform for scientists and academicians all over the world to promote, share, and discuss various new issues and developments in different areas of mechanical engineering and vocational education. This journal is published in the online journal, which publishes research articles, reviews, and letters in all areas of mechanical engineering and vocational education. It is a blind peer-reviewed journal, aims to provide the most complete and reliable source of information on current developments in the field. The emphasis will be on publishing quality papers rapidly and available to researchers worldwide.
Arjuna Subject : -
Articles 6 Documents
Search results for , issue "vol 8, no 2 (2026)" : 6 Documents clear
Analisis Keausan Saw Blade Akibat Variasi Kecepatan Pemajuan Pada Mesin Cold Saw di PT Krakatau Baja Konstruksi Sahrul Tamam; Sulaeman Deni Ramdani
Nozel : Jurnal Pendididikan Teknik Mesin Vol 8, No 2 (2026)
Publisher : Fakultas Keguruan dan Ilmu Pendidikan Universitas Sebelas Maret Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/nozel.v8i2.118586

Abstract

This study aims to evaluate the effect of feed rate (advance speed) on the wear of Creusabro 4800 saw blades during the cutting of low-carbon steel using a cold saw machine with a constant cutting speed of 107 m/s. The methods employed include literature review, direct field observation, interviews with technicians and operators, and data analysis from operational logbooks over a 40-day period. The results show that increasing the advance speed significantly accelerates tooth wear, reduces the number of cuts that can be performed, and affects the quality of the cut surface. An advance speed of 0.05 m/s produced 1200 cuts with 0.20 mm wear, while at 0.40 m/s, wear increased to 1.00 mm and the number of cuts dropped sharply to 300 units. Observed wear patterns included flank wear, rounding, and chipping, which were aggravated by thermal load and cyclic pressure due to the geometry of materials such as H-beams and C-channels. The optimal advance speed range was found between 0.10–0.20 m/s, where the number of cuts remained high and wear was within acceptable limits. This study recommends implementing a blade replacement logbook system, using active cooling systems, and evaluating the use of TCT blades as an alternative to improve cutting efficiency and tool life in industrial production settings
Analisis Perbandingan Efisiensi Kinerja Mesin Pencacah Rumput 6.5 HP dan 5.5 HP menggunakan 4 Mata Pisau Eki Sripratama; Budi Harjanto
Nozel : Jurnal Pendididikan Teknik Mesin Vol 8, No 2 (2026)
Publisher : Fakultas Keguruan dan Ilmu Pendidikan Universitas Sebelas Maret Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/nozel.v8i2.117552

Abstract

This study aims to analyze the comparative performance efficiency of grass chopper machines powered by 6.5 Hp and 5.5 Hp using four blades under constant rotational conditions of approximately 2300 rpm. The research employed an experimental method with a comparative design. Data were collected through direct testing of both machines, focusing on effective capacity, fuel consumption, time efficiency, and chopping quality. Each test was repeated five times using measuring instruments including a scale, stopwatch, measuring cup, and ruler. The results show that the 6.5 Hp machine achieved a higher average effective capacity of 196.27 kg/h and time efficiency of 3.26 kg/min compared to the 5.5 Hp machine, which produced 194.7 kg/h and 3.24 kg/min. However, the 5.5 Hp machine demonstrated better fuel efficiency at 0.066 liters/kg, while the 6.5 Hp machine consumed 0.080 liters/kg. The chopping quality of both machines was relatively uniform with no significant differences observed. These findings indicate that engine power affects capacity and working speed, while lower power engines tend to be more fuel efficient. Therefore, machine selection should consider operational needs, scale of use, and fuel efficiency.
Analisis Kinerja Distributor Valve pada Sistem Pengereman Kereta Penumpang Berbasis Air Brake System Windy Andaresta; Abri Andry Saresa Marbun; Agnes Manurung; Boby Sahat Maruli Malau
Nozel : Jurnal Pendididikan Teknik Mesin Vol 8, No 2 (2026)
Publisher : Fakultas Keguruan dan Ilmu Pendidikan Universitas Sebelas Maret Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/nozel.v8i2.119222

Abstract

The braking system is a vital component in railway operations that plays an important role in ensuring travel safety. One of the main components in an air brake system is the distributor valve, which functions to regulate the distribution of air pressure to the brake cylinder. This study aims to analyze the performance of the distributor valve in a passenger train braking system based on an air brake system. The methods used include field observations, literature studies, and analysis of the working process and pressure response of the braking system. The results show that the distributor valve is capable of responding effectively to changes in brake pipe pressure, with a maximum pressure reaching 3.8 bar, thereby producing optimal braking force. In addition, the system demonstrates stability during both the braking and brake release processes in accordance with the working principles of the air brake system. Therefore, the performance of the distributor valve is considered to meet operational standards and plays an important role in maintaining the safety of the railway braking system.
Optimasi Proses Transesterifikasi pada Pemanfaatan Minyak Jelantah sebagai Bahan Baku Biodiesel Menggunakan Mesin BULUK Ayu Mutia Zahro; Danar Susilo Wijayanto
Nozel : Jurnal Pendididikan Teknik Mesin Vol 8, No 2 (2026)
Publisher : Fakultas Keguruan dan Ilmu Pendidikan Universitas Sebelas Maret Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/nozel.v8i2.118254

Abstract

Minyak jelantah merupakan limbah rumah tangga dan industri pangan yang jumlahnya melimpah, serta berpotensi mencemari lingkungan apabila tidak dikelola dengan baik. Disisi lain, minyak jelantah masih mengandung trigliserida yang dapat dimanfaatkan sebagai bahan baku biodiesel melalui proses transesterifikasi. Penelitian ini bertujun untuk merancang dan menguji kinerja mesin BULUK (Bahan Ulang Limbah Untuk Kendaraan) sebagai alat pengolah minyak jelantah menjadi biodiesel, serta menganalisis karakteristik mutu biodiesel yang dihasilkan. Metode penelitian yang digunakan adalah metode eksperimental yang meliputi tahapan rancang bangun alat, proses transesterifikasi menggunakan katalis NaOH, serta pengujian mutu biodiesel berdasarkan standar SNI 7182:2015. Proses pengolahan dilakukan dengan variasi suhu reaksi dan tahaoan pemurnian. Hasil penelitian menunjukan bahwa dari 3 liter minyak jelantah diperoleh biodiesel sebanyak 2,25 liter dengan rendemen sebesar 75%. Hasil uji mutu menunjukan bahwa kadar air, kadar abu, viskositas, dan titik nyala biodiesel telah memenuhi standar SNI, sedangkan parameter densitas dan titik kabut masih memerlukan optimasi lebih lanjut.
Strategi Manajemen Teaching Factory (TEFA) Berbasis Kemitraan Industri di SMK Ganesha Tama Pradana, Dicky Tirta; Sutrisno, Valiant Lukad Perdana
Nozel : Jurnal Pendididikan Teknik Mesin Vol 8, No 2 (2026)
Publisher : Fakultas Keguruan dan Ilmu Pendidikan Universitas Sebelas Maret Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/nozel.v8i2.119268

Abstract

The competency gap between vocational high school (SMK) graduates and industrial needs triggers high unemployment rates. Teaching Factory (TEFA) emerges as an innovative learning model to address this issue. This study aims to describe the TEFA management strategy implemented at SMK Ganesha Tama Boyolali. The research approach used is qualitative with a case study design. Data were obtained from eight informants through in-depth interviews, participant observation, and documentation studies. The data analysis technique followed an interactive model encompassing data reduction, data display, and conclusion drawing. The research results indicate that the TEFA management strategy is implemented through five main pillars: (1) strategic planning based on market analysis and curriculum synchronization with PT D-Tech Engineering; (2) strengthening partnerships through technical assistance and resource sharing; (3) functional organizational governance adopting corporate managerial structures (Production Manager, HRD, and GA); (4) operational implementation based on real orders (order-based) with a three-shift system ; and (5) a digitized monitoring system utilizing a geotagging attendance application. The integration of these five management pillars ensures the systemic relevance of vocational education to industrial standards.
Pengembangan dan Penerapan Modul Pembelajaran Pengoperasian Mesin CNC Milling untuk Meningkatkan Efektivitas Pembelajaran di Solo Technopark Ananditho Panji Pratama; Ranto Ranto
Nozel : Jurnal Pendididikan Teknik Mesin Vol 8, No 2 (2026)
Publisher : Fakultas Keguruan dan Ilmu Pendidikan Universitas Sebelas Maret Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/nozel.v8i2.118498

Abstract

This study aims to develop and implement a CNC machine operation learning module to improve learning effectiveness at Solo Technopark. The study is motivated by the absence of structured instructional materials that can support competency-based learning in CNC training, resulting in inconsistent learning processes and high dependence on instructors. This research employs a Research and Development (R&D) approach using the ADDIE model, which consists of Analysis, Design, Development, Implementation, and Evaluation stages. Data were collected through observations, interviews, and questionnaires using a Likert scale, and analyzed using descriptive quantitative methods. The results indicate that the developed module achieved a high level of feasibility, as validated by material experts (87.5%) and media experts (84.30%). During the implementation stage, the module demonstrated an effectiveness level of 80.25%, categorized as effective. These findings suggest that the module enhances content clarity, supports self-directed learning, and improves participants’ skills in CNC machine operation. From a theoretical perspective, this study reinforces the role of modular learning in vocational education in promoting self-directed learning and consistency of competency acquisition (Putri & Widodo, 2023). However, limitations remain in terms of visual design and learning independence, indicating the need for further development.

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