Hosem Power utilize world-famous suppliers for the alternators and engines in our generators, including: CUMMINS, Perkins, Deutz, SDEC, Weichai, Isuzu, Quanchia, ensuring high-quality products. Below is our diesel generator production progress.   Manufacturing and Assembly Progress   Drawing The engineer draws the drawing according to the actual size and prepare to bending and cutting   Bending and Cutting Through the intelligent and automatic bending and cutting machine, complete the component of the generator set   Welding: Welding the cut parts and preparing them for painting   Spray painting Clean the welded body and process with triple powder coating, IR oven-cured   Mounting for noise reduction device Process: Cutting the soundproof cotton-platinum parts assembly-paste the soundproof cotton-mount the water tank plate-generator set housing assembly   Connecting the diesel engine air end and base frame Process: Clean the base frame-mount the anti-...

  Introduction: Why Is Your Diesel Generator Shaking? If your diesel generator is shaking or vibrating abnormally, it can seriously affect its performance, reduce lifespan, and create safety risks. Fortunately, with the right diagnosis and maintenance steps, you can solve these issues quickly. In this article, we’ll explain the common causes of diesel generator vibrations, how to troubleshoot them, and tips to prevent future generator shaking problems.     Common Causes of Diesel Generator Vibration 1. Mechanical Imbalance One of the most frequent causes of diesel generator vibration is mechanical imbalance, including: Unbalanced flywheel or generator rotor Worn crankshaft or connecting rods causing uneven movement Misaligned coupling or aged flexible elements These mechanical issues can result in noticeable generator shaking during operation. 2. Combustion System Malfunctions Problems in the combustion system can lead to irregular engine power output, causing vibr...

Diesel engines are widely used in generators, trucks, construction, and agricultural equipment. For any diesel engine to operate efficiently, it must start smoothly. However, starting difficulties are one of the most common issues in diesel engine operation. This article will explore the major causes of starting failure, classify the potential faults, and provide step-by-step troubleshooting methods to help you resolve them efficiently.     What Is Considered a Starting Failure? For a diesel engine to start normally, four basic conditions must be met: Sufficient cranking speed Adequate compression pressure Proper diesel fuel atomization Adequate air supply If the engine fails to start after 3 consecutive attempts, each within 10 seconds and spaced 1 minute apart, it is considered a starting failure. Classification of Diesel Engine Starting Issues Starting problems can typically be traced to five key systems: Starting system Cylinder components Fuel supply system Air intake an...

Small Marine Diesel Generators vs. Portable Generators: Which Is Right for Your Boat?   When it comes to powering your boat, choosing the right generator is crucial for ensuring a safe, efficient, and enjoyable experience on the water. Whether you need a reliable power source for extended voyages or just an occasional backup, understanding the differences between small marine diesel generators and portable generators can help you make an informed decision. This article will explore the key features, benefits, and drawbacks of each option to help you determine which is best suited for your boating needs.   Small Marine Diesel Generators   Small marine diesel generators are considered compact power solutions, typically powered by water-cooled engines. Popular brands in the market include Onan, Kohler, Yanmar, and Hosem Yacht series generators. Thanks to the water-cooled system, the engine's temperature is effectively controlled, allowing it to operate for extended periods....

SDEC D Series Technical Features The D series engines from Shanghai Diesel Engine Co., Ltd. are the top choice for powering large tractors and other agricultural machinery in China. These engines are renowned for their high reliability, low fuel consumption, and rapid load transient response. As one of the most advanced designs among China's mature engines, the D series boasts a torque reserve of 30-40% and offers a power range from 105 to 280 kW, meeting the National III and National IV non-road emission standards.   The D series engines were originally co-developed with Austria's AVL, taking into consideration the specific characteristics of Chinese oil products and user preferences. In 2005, further enhancements were made in collaboration with the Southwest Research Institute (SWRI) of the United States, including the upgrade to four valves. Designed according to the stringent standards of American heavy-duty diesel engines, the D series represents an environmentally friendly p...

How is the quality of SDEC Generator? Let me start with the conclusion: The quality of SDEC generators is excellent. As one of the top three Chinese engine brands, SDEC is renowned for its high reliability and low operating costs. Their engines are widely recognized and appreciated by customers for these features. SDEC Engine Profile   Shanghai Diesel Engine Co., Ltd.—formerly known as Shanghai Diesel Engine Factory—was founded in 1947 and is now part of the SAIC Group. In 1993, the company was restructured into a state-owned holding company, issuing A and B shares both domestically and internationally. It is recognized as a large-scale, high-tech enterprise specializing in the research, development, and manufacturing of engines, parts, and generator sets. The company boasts a nationally certified technology center and postdoctoral workstation, a passenger car standard quality management system, and advanced automated production lines.   With over 70 years of deve...

How is the quality of Weichai Generator?   Let me start with the conclusion: The quality of Weichai generators is excellent. Weichai is a well-known Chinese brand with a strong reputation in the engine and power generation industries, including marine applications. Weichai Profile   Weichai Power is one of the earliest Chinese companies to develop and produce engines for generator sets, boasting over 60 years of production history. The company specializes in both land and marine generator sets, offering a wide range of diesel and gas-powered solutions. Notably, Weichai Silent Generators are recognized as a national production site for small and medium-sized generator sets and serve as the Vice Chairman unit of the Internal Combustion Power Generation Equipment Branch of the China Electrical Equipment Industry Association.   Weichai Power is committed to delivering comprehensive, safe, and efficient power solutions, backed by advanced technology, a rigorous management sys...

Diesel generator sets are indispensable and important equipment in industrial production, commercial operations and family life, which provide us with a stable power supply. However, like other mechanical equipment, diesel generator sets may also have various problems. If the signs of these problems can be discovered in time and appropriate measures can be taken, the failure can be avoided and the service life of the generator set can be extended. So, what are the common signs when there is a problem with the generator set? 1.Abnormal Noise: A normally operating generator set should be relatively quiet. If you hear abnormal noise from the generator set, such as knocking, friction, roaring, etc., this may mean that there are loose parts, wear or other faults inside the unit. Understanding and Fixing Abnormal Noise in Generator Sets: Causes and Solutions 2.Over Temperature: The generator set generates heat during operation, but if the temperature of the unit is too high, even hot, this m...

Section 1: Common Causes of Abnormal Frequency in Generator Sets   1. Engine Speed Issues   Explanation: Generator frequency is directly related to the engine’s speed (RPM). If the engine speed fluctuates, it will cause frequency variations. Solution: Check the engine’s governor and fuel system to ensure the engine maintains a stable speed. Adjust or repair the governor if necessary.   2. Faulty or Malfunctioning Governor   Explanation: The governor controls the engine speed to maintain a steady frequency. A malfunctioning governor can cause the generator to run at incorrect speeds, leading to abnormal frequency. Solution: Inspect the governor system for wear or damage. Calibrate, repair, or replace the governor as required.   3. Load Imbalance   Explanation: An imbalance in the load distribution across the generator’s phases can cause fluctuations in frequency. Solution: Ensure the load is evenly distributed across all phases. Use a load...