Working together with our manufacturing partners, EMAC continuously collects all useful information, tips, and other technical literature, such as tips on product design, tips on product selection, and shares other technical information. In the meantime, EMAC also invested in different kinds of testing to verify the uncertainty of products, such as the impact on the engine power losses of modifying the dry-type engine exhaust system into a water-cooled exhaust system. All this information is very useful for customers to choose the right products and design the products accordingly.
EMAC pays extreme attention to the new products, new applications, and product trends of our industry, to make sure that we follow up with the dynamic changes of the machinery industry. We collect the trends of products and technology development within the machinery industry. And our project case library can help all customers to find similar cases for most applications, or help customers to find an EMAC’s customer in their country or region.
Technical Articles
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Selection and design concepts of different types of ship propellers
This paper explores the selection and design concepts for propellers of different types of ships, with a focus on analyzing the propeller design characteristics of common vessel types such as passenger ships, bulk carriers, fishing vessels, container ships, engineeri...
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Manufacturing Process of Liyang Propellers
This paper comprehensively introduces the complete manufacturing process of Liyang Propellers, with a focus on our innovative breakthroughs in casting technology, machining processes, and quality control. By adopting 12 patented technologies—including quick-drying sa...
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Liyang Propeller Quality Control System
This paper comprehensively introduces the distinctive three-level quality control system of Liyang Propellers, which comprises three rigorous pre-furnace inspections and ten precise finished product tests. By adopting internationally advanced testing equipment and sc...
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Introduction to Different Certificate-Level Propellers
This paper systematically introduces the quality control systems for different certification levels in ship propeller manufacturing, focusing on analyzing the differences among mainstream standards such as BV (Bureau Veritas), CCS (China Classification Society), and ...
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Introduction to Common Passenger Ship Packages
The design of passenger ship propellers requires comprehensive consideration of the vessel's speed, comfort, economy, and maneuverability. This paper details the key design parameters of passenger ship propellers (including diameter, disk area ratio, material, hub-to...
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Introduction to Common Fishing Vessel Packages
The design of fishing vessel propellers needs to balance propulsion efficiency, maneuverability, and special operational requirements.This paper systematically analyzes the key design parameters of fishing vessel propellers（including diameter, disk ratio, material, ...
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Introduction to Common Engineering Vessel Packages
The propeller design of engineering ships must meet the requirements of complex operating environments and special functional needs, and its design process entails the comprehensive consideration of multiple factors—including maneuverability, positioning capability, ...
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Introduction to Common Container Ship Shipping Packages
The design of container ship propellers must balance specific requirements, such as high speed, high efficiency, and route adaptability. This paper systematically analyzes the key design parameters and matching methods of modern container ship propellers, with a part...
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Introduction to Common Bulk Carrier Packages
The design of bulk carrier propellers requires comprehensive consideration of the vessel's economy, durability, and seaworthiness. This paper details the key design parameters of bulk carrier propellers (diameter, disk area ratio, material, hub-to-diameter ratio, rak...
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Introduction to Common Automobile Ferry Packages
As a key transportation tool for land-island connections, the propeller design of automobile ferries must balance special requirements such as speed, maneuverability, and economy.This paper systematically analyzes the key design parameters and matching methods of suc...
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Comparison of Propellers Made of Different Materials
Cast iron propellers and copper propellers each exhibit distinct characteristics in marine propulsion; however, from a comprehensive performance perspective, copper propellers hold significant advantages.
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Marine gearbox gear shifting fault solution
As a key component of the ship's power system, whether the marine gearbox can shift gears normally is related to the operation of the ship. This article deeply analyzes the reasons why the marine gearbox cannot shift gears, covering hydraulic system failure, clutch p...
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Marine Gearbox Troubleshooting Guide
Marine gearboxes are core components of ship propulsion systems, and their stable operation is directly related to the safety and economy of ships. However, due to the complex marine environment and long-term loads, gearboxes often experience various faults. This art...
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Vietnam | Pump – Electric Motor
EMAC's customer interview video of 2024, EMAC finished a series of customer interview with 10 different business partners from different countries and regions, most of videos are took at customer's company and factory, collecting all reviews and evaluations of EMAC...
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Indonesia | Construction – Customer Interview
EMAC's customer interview video of 2025, EMAC finished a series of customer interview with 10 different business partners from different countries and regions, most of videos are took at customer's company and factory, collecting all reviews and evaluations of EMAC...
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Malaysia | Construction – Ground Support Equipment
EMAC's customer interview video of 2023, EMAC finished a series of customer interview with 10 different business partners from different countries and regions, most of videos are took at customer's company and factory, collecting all reviews and evaluations of EMAC...
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How to Convert the CUMMINS K19-M3 Marine Engine from Dry Exhaust to Wet Exhaust?
Converting a CUMMINS K19-M3 marine engine from a dry to a wet exhaust system requires modifications to both the exhaust and cooling systems. The exhaust pipe replacement is straightforward, but the cooling system adaptation is more complex, involving thermostat remov...
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Thailand | Pump – Equipment Production
EMAC's customer interview video of 2023, EMAC finished a series of customer interview with 10 different business partners from different countries and regions, most of videos are took at customer's company and factory, collecting all reviews and evaluations of EMAC...
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Marine Gearbox Selection Guide: Technical Parameters Analysis
Choosing the right marine gearbox is crucial to the safe and efficient operation of the ship. As the core component of power transmission, the marine gearbox directly affects the performance, economy and operational reliability of the ship. This article will discuss ...
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Maintenance and Cleaning Methods for Marine Gearboxes
Cleaning and maintenance of marine gearboxes are important links to ensure equipment performance and extend life. This article details the key steps of cleaning, such as waste oil discharge, component disassembly and cleaning, housing cleaning, wear inspection, lubri...
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The Basic Functions and Working Principles of Marine Gearboxes
Marine gearboxes are vital components in ship propulsion systems, responsible for transmitting the power of the main engine to the propeller, regulating the speed and changing the direction. Through the combination of gears, the gearbox can efficiently convert power ...
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Indonesia | Marine – Indonesia Shipyard Interview
EMAC's customer interview video of 2023, EMAC finished a series of customer interview with 10 different business partners from different countries and regions, most of videos are took at customer's company and factory, collecting all reviews and evaluations of EMAC, ...
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Thailand | Pump – Thailand Engineering Company Interview
EMAC's customer interview video of 2023, EMAC finished a series of customer interview with 10 different business partners from different countries and regions, most of videos are took at customer's company and factory, collecting all reviews and evaluations of EMAC, ...
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USA | Construction – A USA Company’s Feedback
EMAC company till now, and EMAC provides us a very good support, no matter pre-sales support or after-sales support. They have deep network of power system manufacturers in China, and ensuring them the strong ability of giving multiple brands options, we are happy to...
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Asean | Marine – Asean Company’s Feedback
We are a marine equipments packager company in Asean, estbalished in 2007. We packaged marine generator sets, marine propulsion system, side thruster, CPP propeller system, azimuth thruster, fuel and oil purifiers , engine electronic control system etc...
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Malaysia | Marine – Feedback from Safari Boat Operators
We were satisfied with EMAC, and happy to having them as our supplier, our boat has been operated for more than 5 years now, both propulsion system and power system from EMAC are working perfectly. We do happy with the good quality of products from EMAC, the stabilit...
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