Perencanaan Mesin Depalletizer Untuk Memindahkan Material Plat Baja SUP9 Dengan Kapasitas 160 Kg (Studi Kasus PT Indospring Tbk.)

Prathama, Boby (2026) Perencanaan Mesin Depalletizer Untuk Memindahkan Material Plat Baja SUP9 Dengan Kapasitas 160 Kg (Studi Kasus PT Indospring Tbk.). Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Proses pemindahan material plat baja SUP9 pada lini produksi Leaf Spring di PT Indospring Tbk. masih dilakukan secara manual sehingga berisiko terhadap keselamatan operator, peletakan material yang kurang presisi, dan kurangnya produktivitas. Penelitian ini bertujuan untuk merencanakan mesin Depalletizer yang mampu memindahkan material plat baja SUP9 dengan kapasitas angkat 160 kg secara aman, presisi, dan efisien melalui perancangan Rangka Utama, penentuan spesifikasi komponen aktuasi, serta validasi kekuatan struktur Rangka Utama menggunakan simulasi elemen hingga. Metode penelitian meliputi studi literatur, observasi lapangan, perancangan konseptual, perhitungan teknis komponen, pemodelan CAD, dan simulasi menggunakan Ansys. Mesin direncanakan terdiri atas magnet pengangkat, pneumatik vertikal dan horizontal, linear guide vertikal dan horizontal, serta pneumatik ejector. Hasil perencanaan menunjukkan penggunaan dua magnet HEPMP-1500P50A dengan kapasitas angkat total 3.000 kg, silinder pneumatik vertikal bore 160 mm menghasilkan gaya efektif 17.909,4 N untuk mengangkat beban hingga 492 kg, silinder pneumatik horizontal bore 32 mm menghasilkan gaya efektif 2.867,1 N untuk mendorong beban hingga 738 kg, serta pneumatik ejector bore 100 mm menghasilkan gaya efektif 4.474,5 N. Sistem gerak didukung linear guide THK HSR 15R dan HSR 15LR yang memenuhi kebutuhan pembebanan. Perhitungan teoritis menghasilkan tegangan bending Rangka Utama sebesar 9,48 MPa, jauh di bawah yield strength material SS41 sebesar 250 MPa. Hasil simulasi elemen hingga menunjukkan tegangan von Mises sebesar 9,56 MPa dengan error 0,84% terhadap perhitungan teoritis, sehingga model dinyatakan valid. Seluruh kriteria desain, meliputi kapasitas angkat, jangkauan kerja, waktu operasi sekitar 10 detik per siklus, dan keamanan struktur berhasil terpenuhi. Mesin Depalletizer yang direncanakan mampu meningkatkan produktivitas pemindahan material dari dua menjadi lima plat baja per siklus sekaligus meningkatkan keselamatan kerja dan efisiensi operasional dalam pabrik.
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The process of handling SUP9 steel plate material on the Leaf Spring production line at PT Indospring Tbk. is still performed manually, posing risks to operator safety, resulting in imprecise material placement, and leading to low productivity. This study aims to design a depalletizer capable of safely, precisely, and efficiently handling SUP9 steel plates with a lifting capacity of 160 kg through the design of the main frame, the determination of actuation component specifications, and the validation of the main frame’s structural strength using finite element analysis. The research methods included a literature review, field observations, conceptual design, technical component calculations, CAD modeling, and simulation using Ansys. The machine was designed to consist of lifting magnets, vertical and horizontal pneumatic cylinders, vertical and horizontal linear guides, and a pneumatic ejector. The design results show the use of two HEPMP-1500P50A magnets with a total lifting capacity of 3,000 kg; a vertical pneumatic cylinder with a 160 mm bore produces an effective force of 17,909.4 N to lift loads up to 492 kg; a horizontal pneumatic cylinder with a 32 mm bore producing an effective force of 2,867.1 N to push loads up to 738 kg, and a pneumatic ejector with a 100 mm bore producing an effective force of 4,474.5 N. The motion system is supported by THK HSR 15R and HSR 15LR linear guides that meet the load requirements. Theoretical calculations yielded a bending stress in the main frame of 9.48 MPa, well below the yield strength of SS41 material, which is 250 MPa. Finite element simulation results showed a von Mises stress of 9.56 MPa with an error of 0.84% compared to the theoretical calculation, thus validating the model. All design criteria—including lifting capacity, working range, an operating time of approximately 10 seconds per cycle, and structural safety—were successfully met. The designed depalletizer is capable of increasing material handling productivity from two to five steel plates per cycle while simultaneously improving workplace safety and operational efficiency within the factory.

Item Type:	Thesis (Other)
Uncontrolled Keywords:	Indonesia : Baja, Depalletizing, Desain Struktural, Linear Guide, Magnet, Material Handling Inggris : Steel, Depalletizing, Structural Design, Linear Guide, Magnets, Material Handling
Subjects:	T Technology > TJ Mechanical engineering and machinery > TJ230 Machine design T Technology > TJ Mechanical engineering and machinery > TJ950 Pneumatic machinery
Divisions:	Faculty of Vocational > Mechanical Industrial Engineering (D4)
Depositing User:	Boby Prathama
Date Deposited:	01 Aug 2026 02:29
Last Modified:	01 Aug 2026 02:29
URI:	http://repository.its.ac.id/id/eprint/141101

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