Sisprotek

STRATEGI PENGURANGAN PRODUK CACAT PADA PENGELASAN PROJECT BAHADOPI DENGAN MENGGUNAKAN METODE SIX SIGMA STUDI KASUS DI SALAH SATU PERUSAHAAN DI CILEGON

2026-01-19T04:39:05+00:00

This study aims to formulate defect reduction strategies in the welding process of the Bahodopi Project at a company in Cilegon using the Six sigma approach. Welding is often a critical point in determining product quality, where various types of defects can significantly impact the final result. The research was conducted using a descriptive qualitative approach based on inspection data collected over 16 weeks, and data analysis was carried out through the DMAIC stages (Define, Measure, Analyze, Improve, and Control). The analysis revealed that the most dominant defects were porosity, cluster porosity, spatter, and undercut, with the main root causes being human and method factors. A five-week simulation of improvement showed a significant reduction in DPMO, from 26,500 to 4,900, and an increase in sigma level from 3.12 to 4.03. Based on the fishbone and pareto diagrams, several defect reduction strategies were formulated, including retraining of welding operators, strengthening SOP implementation, enhancing visual supervision, and conducting regular maintenance of welding machines. This research is expected to serve as a reference for improving welding quality and minimizing defects in future fabrication projects.

PENILAIAN RISIKO ERGONOMI PADA LINGKUNGAN KERJA PERKANTORAN MENGGUNAKAN METODE RAPID OFFICE STRAIN ASSESSMENT DI PT. XYZ

2026-01-12T23:57:44+00:00

PT. XYZ is a private company engaged in the field of fly ash and bottom ash delivery services in completing work using
many computerized systems, especially in the office. Workers who use computers or laptops often complain of pain in the
lower back and neck, this complaint results in decreased worker productivity when doing work, this complaint can be
minimized by understanding how workers use computers in the workplace. Assessment is an important thing to do to
determine the level of office ergonomics, the Rapid Office Strain Assessment method is one of the most specific methods
for assessing office workers, PT. XYZ office workers have a high level of risk after data processing using the Rapid Office
Strain Assessment method, so it is necessary to propose improvements to work facilities and socialization of the correct
application of office ergonomics.

PENGEMBANGAN SISTEM INFORMASI TERINTEGRASI BERBASIS INDUSTRI 4.0 GUNA PENINGKATAN EFISIENSI OPERASIONAL PELAYANAN KESEHATAN RUMAH SAKIT

2026-01-13T00:15:15+00:00

Medium-scale hospitals in Indonesia continue to experience operational inefficiencies due to manual
procedures and fragmented information systems. These conditions result in prolonged patient waiting
times, delayed medical information flow, and suboptimal utilization of healthcare resources. This study
aims to identify hospital information system requirements, analyze current service-related problems,
and design an integrated Hospital Management Information System (HMIS) combined with an
Electronic Medical Record (EMR) framework as an Industry 4.0–based solution. This research adopts
a descriptive–analytical approach grounded in industrial engineering principles. Data were collected
through an extensive literature review, conceptual observation, interviews, time–motion studies, and
user requirement simulations conducted in a Type C hospital setting. System development was carried
out using Data Flow Diagrams (DFD), Entity Relationship Diagrams (ERD), and business process
flowcharts. System performance was evaluated through simulation modeling using Arena software,
focusing on key operational efficiency indicators, namely cycle time and system utilization. The
simulation results demonstrate that the proposed integrated HMIS–EMR design significantly improves
operational performance, evidenced by a reduction in service cycle time from 120 minutes to 45
minutes and a decrease in system utilization from 92% to 78%. The novelty of this study lies in its
holistic approach, which integrates healthcare information system design with operational efficiency
analysis and simulation-based validation. The findings provide both practical insights for hospital
management and a scientific contribution to the development of integrated healthcare information
systems in Indonesia.

ANALISIS INVENTORY BAHAN BAKU DALAM MENGOPTIMALKAN PENYIMPANAN DENGAN MENGGUNAKAN METODE ECONOMIC ORDER QUANTITY (EOQ) PADA NICESY COFFEE & TEA

2026-01-19T04:46:15+00:00

This study aims to analyse and optimise the management of raw material inventory at Nicesy Coffee & Tea using the Economic Order Quantity (EOQ) method. The selection of this topic is motivated by the importance of efficient inventory management in the café industry to maintain operational smoothness and reduce costs. The focus of this study is on four main raw materials: Thai Tea, Sweetened Condensed Milk (SCM), Palm Sugar, and Ice Crystals. The research method used is a descriptive-verificative quantitative approach, utilizing historical data on raw material purchases and usage from 2023-2024, obtained through observation, interviews, and document reviews. The research results indicate that the application of the EOQ method can optimise order quantities and procurement frequencies, thereby improving cost efficiency. For example, for Thai Tea, the optimal EOQ is 527 grams with an order frequency of 38 times per year, resulting in total inventory costs of Rp 949,300. Meanwhile, for Palm Sugar, the optimal EOQ reaches 6,347 ml with a Total Cost of Rp 11,432,300. This study also identified the dominance of Safety Stock costs that need to be optimised, particularly for raw materials such as Ice Crystals and Palm Sugar. Overall, the EOQ method proved to be more effective than the previously used Simple Moving Average method, with significant potential for operational efficiency improvements.

ANALISIS POTENSI BAHAYA DENGAN MENGGUNAKAN METODE HIRARC (HAZARD IDENTIFICATION, RISK ASSESSMENT, AND RISK CONTROL) TERHADAP PEKERJAAN DECANTER DI PT.MI CILEGON

2026-01-19T04:15:53+00:00

ABSTRACT

Occupational safety and health (OHS) is an important aspect in the industrial world, especially in the chemical sector such as PT. MI Cilegon. This study aims to analyze the potential hazards in decanter overhaul work activities using the HIRARC (Hazard Identification, Risk Assessment, and Risk Control) method. The study was conducted through direct observation, interviews with employees, and data collection on work accidents and work activities in 2023. Based on the results of the analysis of 8 main work activities, 37 potential hazards were found which were classified into 4 risk level categories: low, medium, high, and extreme risk. Most of the potential hazards are controlled by administrative controls and the use of personal protective equipment (PPE). This study concludes that the application of the HIRARC method is effective in identifying and controlling potential hazards in the decanter overhaul process, as well as providing recommendations for improving occupational safety in the company.

PERENCANAAN DAN PENERAPAN PREVENTIVE MAINTENANCE MESIN SPINDLE DENGAN METODE RELIABILITY CENTERED MAINTENANCE (RCM) DAN FAILURE MODE AND AFFECTS ANALYSIS DI PT. RAFFA HELICAL BRONZE

2026-01-15T09:40:10+00:00

This study aims to design and implement a preventive maintenance strategy using the Reliability Centered Maintenance (RCM) approach on spindle machines at PT. Raffa Helical Bronze, with a primary focus on reducing spindle component failures. The RCM method is used to identify key equipment functions, possible failure modes, and develop effective maintenance strategies. Data were collected through direct observation, technician interviews, internal documentation, and historical failure analysis. The results showed that the spindle is the critical component that most often experiences damage in the form of overheating, rough noise, and high vibration. Through the application of FMEA, the highest Risk Priority Number (RPN) value was obtained for spindle overheat damage, which was 280. With the implementation of periodic preventive maintenance such as bearing lubrication, coolant checking, and calibration, the MTBF value increased from 143 hours to ±250 hours, and MTTR decreased from 7 hours to ±3 hours. The application of RCM has proven effective in reducing the frequency of spindle failures and increasing the efficiency and efficiency of spindle machines. This strategy can be used as a reference in a risk-based maintenance program to improve operational performance and reduce downtime in the manufacturing industry environment.

Analisis Penggunaan Alat Pelindung Diri Pada Pekerjaan Perbaikan Atap di Gedung Perkantoran

2026-01-07T04:59:04+00:00

Abstract

Occupational Safety and Health (K3) is a crucial aspect that must be considered in every business or company activity. Understanding the rules for working at heights is crucial because any negligence can lead to fatal accidents, resulting in serious injuries or even death. The number of accidents in Indonesia due to falls from heights remains relatively high. Personal Protective Equipment (PPE) is a device capable of protecting a person by isolating part or all of the body from potential hazards in the workplace. The company has implemented laws and regulations to prevent workplace accidents. This study aims to identify potential hazards in roof repair work in office buildings and implement control measures. This study uses a descriptive analytical method by conducting field surveys and interviews with workers. Data from the field surveys are collected and used to determine control measures to reduce risks and prevent accidents. Personal protective equipment (PPE) is required before carrying out roof repair work in office buildings. The personal protective equipment used includes safety shoes, safety helmets, safety body harnesses, leather gloves, and goggles. In addition to using personal protective equipment, worker competency and supporting equipment must be prepared. The results of the analysis of the use of personal protective equipment in roof repair work in office buildings are to determine control measures that can be used as work procedures in PT. X and generally for other companies that have the same type of work.

Keywords : hazard analysis, personal protective equipment