scholarly journals ANALISIS PERANCANGAN ULANG TATA LETAK LANTAI PRODUKSI MENGGUNAKAN METODE AlGO-RITMA CRAFT DI PT. XYZ

2021 ◽  
Vol 16 (2) ◽  
pp. 60-71
Author(s):  
Shafira Sausan Ferinanda ◽  
Rusindiyanto Rusindiyanto
Keyword(s):  
Material Handling ◽  
Total Cost

Perancangan tata letak fasilitas lantai produksi haruslah direncanakan dengan sebaik mungkin agar tercipta tata letak fasilitas yang efisien dan optimal dengan panjang lintasan material handling yang pendek. PT. XYZ merupakan salah satu perusahaan manufaktur atau pabrik  yang memproduksi berbagai jenis sepatu. Layout lantai produksi yang sekarang diterapkan dirasa masih belum optimal karena jarak antar tiap stasiun cukup jauh maka menimbulkan biaya material  handling yang sedikit lebih besar serta apabila jarak antar stasiun memiliki jarak yang  cukup jauh maka akan menghabiskan lebih banyak waktu. Sehingga perlu dilakukan  perancangan ulang tata letak lantai produksi. Penyelesaian masalah dengan menggunakan metode algoritma, algoritma yang  digunakan yaitu algoritma CRAFT (Computerizad Relative Allocation of Facilities Techniques). CRAFT merupakan sebuah algoritma yang mencari perancangan optimal dengan melakukan perbaikan tata letak secara bertahap. Berdasarkan permasalahan diatas maka dibuatlah penelitian yang bertujuan untuk meminimumkan jarak perpindahan antar stasiun kerja dan meminimumkan ongkos material handling dengan perancangan ulang tata letak lantai produksi yang baik dengan menggunakan metode Algortma Craft (Computerized Relative Allocation of Facilities Techniques) di PT. XYZ . Hasil penelitian ini adalah pada layout awal didapatkan total jarak sebedar 53,5 meter sedangkan untuk hasil akhir total jarak setelah pengolahan data adalah 46 meter dengan selisih 7,5 meter dari layout awal. Pada layout awal didapatkan total cost material handling sebesar Rp 646.900,00 untuk satu kali putaran proses produksi sedangakan pada layout akhir didapatka hasil total cost adalah Rp. 449.392,40 dimana terdapat pengurangan Rp 197.507,60. Kata Kunci: Tata Letak, Material Handling, CRAFT

scholarly journals Development of a Lot-Sizing Model to Prevent Heat Stress and Work-Related Musculoskeletal Disorders

2021 ◽  
Vol 33 (6) ◽  
pp. 871-882
Author(s):  
Sezen Korkulu ◽  
Krisztián Bóna
Keyword(s):  
Heat Stress ◽  
Production Line ◽  
Material Handling ◽  
Lot Sizing ◽  
Metabolic Cost ◽  
Heat Strain ◽  
Total Cost ◽  
Work Related ◽  
Work Related Musculoskeletal Disorders ◽  
Rest Time

Management of heat stress and metabolic cost is vital for preventing any work-related disorders. In this paper, we integrated rest time formulations for heat strain and metabolic cost to develop a new lot sizing model for preventing heat exposure and work-related musculoskeletal disorders. The effects of heat strain and rest allowance on the total cost of the production supply process were investigated. The problem studied in this paper was the handling of the raw materials placed in boxes by manual material handling in order to supply the material requirement of a production line placed in a production area. For the realisation of the material handling transactions between the raw material warehouse and the production line, Electric Pallet Jack (EPJ) was used. The study covers the investigation of picking, storing, and carrying motions for the manual handling of these materials. The result of the analysis has shown that 8.5% savings were achieved by using the heat strain and rest time in comparison to the total cost of this part of the production line supply process with the ISO 7243 maximum metabolic work limit. Consequentially, the analysis results showed that the developed method demonstrated the viability of lot sizing model optimisation with multiple objectives and complex constraints with regards to the metabolic cost and heat strain.

scholarly journals ANALISIS TATA LETAK FASILITAS DENGAN MENGGUNAKAN METODE ACTIVITY RELATIONSHIP CHART PADA INDUSTRI MEBEL BAMBU KARYA MANUNGGAL YOGYAKARTA

2017 ◽  
Vol 3 ◽  
Author(s):  
Marni Astuti ◽  
Eko Poerwanto ◽  
Agus Trianingsih
Keyword(s):  
Material Handling ◽  
Activity Relationship ◽  
Furniture Industry ◽  
Distance Method ◽  
Total Cost ◽  
Rectilinear Distance ◽  
Facilities Layout ◽  
Reduction Cost ◽  
Initial Movement ◽  
Initial Layout

Plant layout or facilities layout is to fix regulate facilities layout with consider material handling flow. In this research on Bamboo Furniture Industry Karya Manunggal Yogyakarta show less precisely placement of production facilities and flow material resulting in the total distances of material handling becomes long and induce the total cost of material handling becomes high.Improvement of facilities layout performed with qualitative methods ARC (Activity Relationship Chart). This matter do for obtain a new layout with minimum total distances of material handling and minimum total cost of material handling. In this research use POM QM Software for validating total distances of material handling.Analysis result and designing facilities layout is a new layout with Rectilinear Distance method, The initial movement distances is 1.922,9 m become 1.832,35 m or have a reduction distances 4,94 % from initial layout. While for the initial total cost of material handling is Rp 200.135,6 become Rp 199.745,9 or have a reduction cost 0,19% from initial layout. Existence a new layout based on ARC be expected on the production floor of Bamboo Furniture Industry Karya Manunggal Yogyakarta.

scholarly journals Flexibility analysis of inventory cost model with ergonomics

2019 ◽  
Vol 4 (1) ◽  
pp. 166-173
Author(s):  
Sezen Korkulu ◽  
Krisztina Bona
Keyword(s):  
Material Handling ◽  
Cost Model ◽  
Unit Weight ◽  
Social Aspect ◽  
Lot Size ◽  
Inventory Cost ◽  
Total Cost ◽  
Eoq Model ◽  
Manual Material Handling ◽  
Parameter Values

The economic and environmental sustainability issues in supply chain management have integrated by many researchers in the past decades. The ergonomics as a social aspect of sustainability had received a little attention by researchers. Therefore, the aim of the paper is analyzing the flexibility of developed inventory cost model with relaxation allowance and endurance time as a social aspect of sustainability. The effects of distance, unit weight of item and total number of items on relaxation allowance, the total cost of logistics operation and the EOQ model were investigated. The analyzed mathematical model was a single operator-single material model which covered transportation of fixed amount of raw materials from storage plant to production plant by manual material handling with simple cart and picking, storing, pushing and pushing back with empty cart for manual handling of the products. The different parameter values applied for analysis such as total amount of handled items (Q) changes between 500 pcs to 2750 pcs, unit weight of item (w) changes between 0.1 kg to 1 kg, distance of movement by manual material handling for picking and storing motions (d1) changes between 2 m to 3 m and the distance between the storing equipment and the supermarket of the production line for pushing motion (d2) changes between 15 m to 20 m. The results of the analysis indicated that the longer the distance of movement for all motions leads to decrease in savings of the model compared to EOQ model. The increase in unit weight of item is increase the savings obtained from application of our model and decrease the optimal lot size. There was no specific change on savings or optimal lot size as the total amount of handled item is increase. The compared results indicated that an increase in d1 and d2 lead to an increase in optimal lot size and increase in total cost of the model. Consequently, the analysis has shown that a decrease in lot size would be the better way to improve both ergonomic conditions and total cost of production in any different parameter values. Finally, the analysis of the inventory model with ergonomics were proved that this model is suitable for different industrial practices.

Microbulldozing and Microchiseling

1969 ◽  
Vol 27 ◽  
pp. 134-135
Author(s):  
J.N. Ramsey ◽  
D.P. Cameron ◽  
F.W. Schneider
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Material Handling ◽  
Microprobe Analysis ◽  
Foreign Matter ◽  
Specific Location ◽  
Potential Problems ◽  
Knoop Indenter ◽  
Scanning Electron ◽  
Microhardness Tester

As computer components become smaller the analytical methods used to examine them and the material handling techniques must become more sensitive, and more sophisticated. We have used microbulldozing and microchiseling in conjunction with scanning electron microscopy, replica electron microscopy, and microprobe analysis for studying actual and potential problems with developmental and pilot line devices. Foreign matter, corrosion, etc, in specific locations are mechanically loosened from their substrates and removed by “extraction replication,” and examined in the appropriate instrument. The mechanical loosening is done in a controlled manner by using a microhardness tester—we use the attachment designed for our Reichert metallograph. The working tool is a pyramid shaped diamond (a Knoop indenter) which can be pushed into the specimen with a controlled pressure and in a specific location.

Optimizing Diagnostic Test Sequences: The Probability Modifying Plot

1999 ◽  
Vol 38 (01) ◽  
pp. 50-55 ◽  
Author(s):  
P. F. de Vries Robbé ◽  
A. L. M. Verbeek ◽  
J. L. Severens
Keyword(s):  
Urinary Tract Infection ◽  
Urinary Tract ◽  
Tract Infection ◽  
Decision Trees ◽  
Diagnostic Tests ◽  
Test Sequence ◽  
Optimal Sequence ◽  
Specific Test ◽  
Total Cost ◽  
Modelling Techniques

Abstract:The problem of deciding the optimal sequence of diagnostic tests can be structured in decision trees, but unmanageable bushy decision trees result when the sequence of two or more tests is investigated. Most modelling techniques include tests on the basis of gain in certainty. The aim of this study was to explore a model for optimizing the sequence of diagnostic tests based on efficiency criteria. The probability modifying plot shows, when in a specific test sequence further testing is redundant and which costs are involved. In this way different sequences can be compared. The model is illustrated with data on urinary tract infection. The sequence of diagnostic tests was optimized on the basis of efficiency, which was either defined as the test sequence with the least number of tests or the least total cost for testing. Further research on the model is needed to handle current limitations.

Pengukuran Kinerja Supply Chain Menggunakan Supply Chain Operation Reference (Scor®) (Studi Kasus Koperasi Baitul Qiradh Baburrayyan)

2019 ◽  
Vol 2 (2) ◽  
Author(s):  
Raysa Aleyzia ◽  
Hasan Yudie Sastra
Keyword(s):  
Supply Chain ◽  
Supply Chain Management ◽  
Six Sigma ◽  
Green Beans ◽  
Chain Management ◽  
Total Cost ◽  
Target Value ◽  
Chain Operation ◽  
Cost To Serve ◽  
Supply Chain Operation

Manajemen supply chain yang tidak maksimal akan mempengaruhi kinerja suatu perusahaan. Di Aceh Tengah terdapat suatu koperasi yaitu Koperasi Baitul Qiradh (KBQ) Baburrayyan yang sudah menerapkan manajemen supply chain. Koperasi ini bergerak di bisnis perdagangan biji kopi (green bean). Penelitian ini bertujuan untuk mengukur kinerja supply chain dari KBQ Baburrayyan. Metode yang digunakan adalah SCOR® dengan praktik perbaikan Convergence of SCOR® with Lean and Six Sigma. Target kinerja yang diperoleh untuk total cost to serve adalah sebesar 94,71% dari nilai target 65,00% dan untuk return on supply chain fixed asset adalah sebesar 1,60 dari nilai target 2,50. Hasil yang diperoleh dari penggunaan praktik tersebut adalah terdapat 8 akar penyebab waste di antaranya kurangnya tenaga pengawas, training/briefing belum maksimal, kurangnya kepedulian tentang pentingnya K3, layout yang kurang efisien, belum adanya unit penyuluhan, alat yang masih sederhana, pekerjaan yang monoton, dan tidak dilarang secara tegas.   Supply chain management that is not optimal will affect the performance of a company. In Central Aceh there is a cooperative namely Koperasi Baitul Qiradh (KBQ) Baburrayyan which has implemented supply chain management. This cooperative is engaged in the business of trading in green beans. This study aims to measure the supply chain performance of KBQ Baburrayyan. The method used is SCOR® with the practice of improving Convergence of SCOR® with Lean and Six Sigma. The performance target for total cost to serve is 94.71% of the target value of 65.00% and the return on supply chain fixed assets is 1.60 of the target value of 2.50. The results obtained from the use of the practice are that there are 8 root causes of waste including lack of supervisors, training / briefing is not maximal, lack of concern about the importance of K3, inefficient layouts, absence of extension units, simple tools, monotonous work, and not strictly prohibited.

MATERIAL HANDLING MACHINES AND SYSTEMS – UMI-TWINN PROJECT CONTRIBUTION

2019 ◽  
Vol 12 (1) ◽  
pp. 7-20
Author(s):  
Péter Telek ◽  
Béla Illés ◽  
Christian Landschützer ◽  
Fabian Schenk ◽  
Flavien Massi
Keyword(s):  
Material Handling ◽  
Digital Data ◽  
Flow Process ◽  
Research Directions ◽  
Scientific Excellence ◽  
Research Activities ◽  
New Research ◽  
Eu Project ◽  
The University

Nowadays, the Industry 4.0 concept affects every area of the industrial, economic, social and personal sectors. The most significant changings are the automation and the digitalization. This is also true for the material handling processes, where the handling systems use more and more automated machines; planning, operation and optimization of different logistic processes are based on many digital data collected from the material flow process. However, new methods and devices require new solutions which define new research directions. In this paper we describe the state of the art of the material handling researches and draw the role of the UMi-TWINN partner institutes in these fields. As a result of this H2020 EU project, scientific excellence of the University of Miskolc can be increased and new research activities will be started.

295. Energy Expenditure Prediction of Jobs Using Material Handling Devices

1999 ◽  
Author(s):  
C.B. Woolley ◽  
D.B. Chaffin ◽  
J.W. Boyle
Keyword(s):  
Energy Expenditure ◽  
Material Handling
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