Desain Komponen Gantry Crane Kapasitas 5 Ton Untuk Bongkar Muat Baja Di CV. Cahaya Terang

Amrulloh, A. Fahmi Amrulloh (2026) Desain Komponen Gantry Crane Kapasitas 5 Ton Untuk Bongkar Muat Baja Di CV. Cahaya Terang. Other thesis, Insttitut Teknologi Sepuluh Nopember.

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Abstract

Proses bongkar muat baja di CV. Cahaya Terang selama ini masih dilakukan secara manual menggunakan chain block, sehingga menghadapi permasalahan rendahnya produktivitas (6-10 menit per siklus), tingginya risiko kecelakaan kerja, dan ketergantungan pada tenaga fisik operator. Penelitian ini bertujuan untuk merancang komponen utama gantry crane kapasitas 5 ton guna meningkatkan efisiensi dan keselamatan proses material handling. Komponen yang dirancang meliputi sistem tali baja (wire rope), hook, dan motor listrik penggerak hoist. Metodologi penelitian mencakup observasi lapangan, pengumpulan data teknis, analisis beban statis dan dinamis, serta perhitungan mekanis berdasarkan teori Rudenko (1985). Validasi desain mengacu pada standar ASME B30.10 untuk hook, ASME B30.16 untuk hoist, dan klasifikasi ISO 4301. Hasil penelitian menunjukkan bahwa untuk beban 5 ton dengan kecepatan angkat 0,167 m/s (10 m/menit) diperlukan: (1) Tali baja tipe 6×37+FC diameter 28 mm dengan kekuatan putus 39.900 kgf dan faktor keamanan 14,57, dipasang pada drum diameter 800 mm; (2) Hook material alloy steel AISI 4140 dengan diameter dalam 60 mm dan faktor keamanan minimum 9,65; serta (3) Motor listrik 15 kW (20 HP) dengan sistem reduksi 375:1. Faktor keamanan seluruh komponen berkisar antara 7,77 hingga 14,57, jauh melampaui standar minimum 5.
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Material handling activities at CV. Cahaya Terang are still carried out manually using chain blocks, resulting in low productivity (6-10 minutes per cycle), high risk of workplace accidents, and heavy reliance on operator physical strength. This research aims to design the main components of a 5-ton gantry crane to improve the efficiency and safety of material handling processes. The designed components include the wire rope system, hook, and electric hoist motor. The research methodology comprises field observation, technical data collection, static and dynamic load analysis, and mechanical calculations based on Rudenko's theory (1985). Design validation refers to ASME B30.10 for hooks, ASME B30.16 for hoists, and ISO 4301 classification. The results indicate that for a 5-ton load with a lifting speed of 0.167 m/s (10 m/min), the following are required: (1) 6×37+FC type wire rope with a diameter of 28 mm, breaking strength of 39,900 kgf, and a safety factor of 14.57, mounted on an 800 mm diameter drum; (2) Alloy steel AISI 4140 hook with an inner diameter of 60 mm and a minimum safety factor of 9.65; and (3) 15 kW (20 HP) electric motor with a 375:1 reduction system. The safety factors of all components range from 7.77 to 14.57, significantly exceeding the minimum standard of 5.

Item Type:	Thesis (Other)
Uncontrolled Keywords:	gantry crane 5 ton, hook, hoist, wire rope, drum, motor listrik, perancangan mekanik, ASME, ISO.
Subjects:	T Technology > TJ Mechanical engineering and machinery > TJ1363 Cranes, derricks, etc.
Divisions:	Faculty of Vocational > Mechanical Industrial Engineering (D4)
Depositing User:	A. Fahmi Amrulloh Amrulloh
Date Deposited:	04 Feb 2026 01:23
Last Modified:	04 Feb 2026 01:23
URI:	http://repository.its.ac.id/id/eprint/131968

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