Tuesday, September 19, 2017

Sound Attenuated Generator Enclosure structurer and sound Levels Explained

Many industries require backup power. These high-tech industries are often located in or close to a city or residential area. Both countries, states and Occupational Safety and Health Administration (OSHA) sound guidelines must be followed when selecting a generator set. Sound is generally measured at the property line of the facility. The maximum permitted overall noise levels range from 60 to 78 dB(A). Each area has specific requirements that must be met.

Sound levels from 80 to 100 dB(A) are considered to be very loud, 100 to 125 dB(A) uncomfortable, and 140 dB(A) reaching the threshold of pain.

About Reducing Generator Set Noise, There are a few concepts to follow when reducing a generator set noise. Generator set manufactures use these concepts when designing sound-attenuating enclosures:

Acoustic Barrier – Enclosures constructed of steel panels. Electrical, fuel pipes and any other auxiliary entries must be sealed.
Acoustic Insulation – Sound absorbing insulation in/on interior panels.
Isolation Mounts – Generator, engine and auxiliary support components are connected using isolation mounts.
Cooling Air Attenuation – Baffles installed into air intake louvers.
Exhaust – Style of muffler installed is significant. Choose muffler that meet state and local requirements.
Enclosure Location – Locate enclosure as far from property line as possible.

So before you purchase the silent generator, it is better to know the structure of the sound attenuate generator. Here it is.

Hiersun diesel Generator offers sound-attenuated enclosures  in three different levels. Each level offers a different level of sound output during operation. The three levels of sound-attenuation are:

Level I – Generator operates at 70 to 89 d(B)A
Level II – Generator operates at 63 to 78 d(B)A
Level III – Generator operates at 68 to 70 d(B)A

Welcome to contact us for more information of silent generator.

Tuesday, September 12, 2017

Diesel Generator General Safety Precautions

Diesel Generator General Safety Precautions

This article is aboutdiesel generator safety operation written for the operator. And if you are diesel generator owner, maker, or dealer, we wish you share this article to the operator.
Safe and efficient operation can be achieved only if the equipment is properly operated
and maintained. Many accidents are caused by failure to follow fundamental rules and

Diesel Generator-Hiersun

l  Coolants under pressure have a higher boiling point than water.  DO NOT open a radiator or heat exchanger pressure cap while the engine is running. Allow the generator set to cool and bleed the system pressure first to prevent severe scalding let the engine cool down before removing the coolant pressure cap Tum the cap slowly, and do not open it fully until the pressure has been relieved
l  Benzene and lead, found in some fuels have been identified by some countries, states as causing cancer or reproductive topiary when checking, draining or adding gasoline (if applicable to your product), take care not to ingest, breathe the fumes, or Contact gasoline.
l  Used engine oils have been identified by by some countries, states as causing cancer or reproductive toxicity. When checking or changing engine oil. Take care not to ingest,
 breathe the fumes or contact used oil.
l  Keep multi-class ABC fire extinguishers handy. Class A fires involve ordinary combustible
  Materials such as wood and cloth; Class B fires involve combustible and flammable liquid
   Fuels and gaseous fuels; Class C fires involve live electrical equipment.
l  Make sure that rags are not left on or near the engine.
l  Make sure generator set is mounted in a manner to prevent combustible materials from
  accumulating under the unit.
l  Remove all unnecessary grease and oil from the unit. Accumulated grease and oil can
   cause overheating and engine damage which present a potential fire hazard.
l  Keep the generator set and the surrounding area clean and free from obstructions.
   Remove any debris from the set and keep the floor clean and dry.
l  Do not work on this equipment when mentally or physically fatigued, or after consuming any alcohol or drug that makes the operation of equipment unsafe.
l  Substances in exhaust gases have been identified by some state or federal agencies as
  causing cancer or reproductive toxicity. Take care not to breath, ingest or come into
   contact with exhaust gases.
l  Do not store any flammable liquids, such as fuel, cleaners, oil, etc., near the generator set. A fire or explosion could result.
l  Wear hearing protection when going near an operating generator set.
l  To prevent serious burns, avoid contact with hot metal parts such as the radiator, the turbo-charger, and the exhaust system.

We will continue to publish more information about this subject, please keep your attention.

Monday, May 12, 2014

25KVA China Cummins Genset ( Authentic Cummins 4BT3.9-G detailed)

China Cummins genset 25KVA powered by Dongfeng Cummins 4BT3.9-G. And in our catalogue( earlier published), you can find 4BT3.9-G1 and 4BT3.9-G2, so what is the difference ? The answer is G1 is for mechanical speed governor, but G2 is for electronic.
So when you purchase the China Cummins genset output is 25KVA, how do you be sure the engine is authentic one ? Please compare the engine with below photos.

1.  What important is that the dongfeng Cummins sell the engine with the Radiator as a package. So in a if no specific case, your China Cummins 25KVA genset should come with below radiator.
Cummins engine 4BT3.9-G2 front face view

2. Pay attention to the flywheel, and the flywheel housing is 3#. 
Cummins Engine 4BT3.9-G left side view
3. Record the turbocharger & fuel pump, air filter serial number and confirm with China Cummins. 
Cummins Engine 4BT3.9-G top view
Conclusion: All the packages of the Dongfeng Cummins is wrapped by a yellow plastic film and, configured with red fan of the radiator, and a wood pallet.

For further detailed or technical data, please click here for download.
Good luck!!!

Sunday, March 16, 2014

China Cummins Engine powered by DCEC catalog

We have known that Cummins set two basic factories in China, one in short is DCEC Cummins, another one is called CCEC Cummins.

Now we would like to give you a complete introduction of the first one. 

Dongfeng Cummins Engine Co.,ltd is a joint venture company between Dongfeng automobile Co.,ltd (China) and Cummins Co.,ltd (USA), located in Xiangyang city, Hubei province.
Main products manufactured by the joint venture are the Cummins designed midrange mechanical B/C/L series engines, ISDe/ISLe/ISZ/QSB/QSL/QSZ series eletronic engines, B/C/L series natural gas engines, which can meet Euro III, Euro IV, Tier3/stage IIIA emissions legislations. Engine displacement will cover 3.9L/4.5L/5.9L/6.7L/8.3L/8.9L/13L, with engine power ranging from 80-550HP.

For each model technical data, please download from this link
http://www.hiersungroup.com/Acquire-of-Technique-Documents.html (China Cummins Engine Catlog 20KW-200KW).

Friday, February 21, 2014

China genuine Cummins generator part II (Stamford identification)

 For Choosing  genuine engines such as cummins, perkins, MTU and volve power for the generator, a same level alternator such as Stamford, Marathon will be the best choice. 
Earlier we talk about how to identify Cummins engine for the China Cummins genset, and 
it is time for us heading for discuss the STAMFORD alternator.

However, have you heard millions rumors of the fake Stamford alternator produced in China? Unfortunately,most of be said is ture. Copy, fake, cheap stamford alternator are occupying some percentage market share in somewhere.

So how to identify the genuine ones is coming up to the subject.
Today, we would like to show non-technical part checking.
And please note that our documents published below are  the most updated ones from Stamford newage in China now. Not for the ones you bought before 06/2013.

Latest name plate of cummins generatortechnologies newage 
(Self-adhesive paper)

This is very important, from late 2013 , genuine newage Stamford alternator 
comes with the anti-counterfeiting technical.

The certificate of conformity of newage stamford alternator.

After checking above three certificates, you need to check all the manuals including the AVR, drawings and specification carefully.

Of course, the mentioned examination is not related to the technical part, and we will discuss it next time about the AVR, and the main system of the alternator.

Monday, February 10, 2014

Something about Chinese new year -----You may know or not

As a Chinese, it is the time, but late a little bit to share the happy moments.
Anyhow, the thousands year traditional custom, we love it, more and more.
Let us see...

Lunar New Year. (Chinese new year)

Chinese New Year is an important traditional Chinese holiday celebrated on the first day of the year of the Chinese calendar. In China, we call it Spring Festival, the literal translation of the modern Chinese name. Within China, regional customs and traditions concerning the celebration of the Chinese new year vary widely. Often, the evening preceding Chinese New Year's Day is an occasion for Chinese families to gather for the annual
reunion dinner. It is also traditional for every family to thoroughly cleanse the house, in order to sweep away any ill-fortune and to make way for good incoming luck. Windows and doors will be decorated with red color paper-cuts and couplets with popular themes of "good fortune" or "happiness", "wealth", and "longevity." Other activities include lighting firecrackers and giving money in red paper envelopes.

According to tales and legends, the beginning of Chinese New Year started with the fight against a mythical beast called the Nian (Chinese: 年; pinyin: Nián). Nian would come on the first day of New Year to eat livestock, crops, and even villagers, especially children. To protect themselves, the villagers would put food in front of their doors at the beginning of every year. It was believed that after the Nian ate the food they prepared, it wouldn’t attack any
more people. One day people saw that the Nian was scared away by a little child wearing red. The villagers then understood that the Nian was afraid of the color red. Time when the New Year was about to come, the villagers would hang red lanterns and red spring scrolls on windows and doors. People also used firecrackers to frighten away the Nian. From then on, Nian never came to the village again. The Nian was eventually captured by Hongjun
Laozu, an ancient Taoist monk. The Nian became Hongjun Laozu's mount.
Preceding days
On the days immediately before the New Year celebration, Chinese families give the home a thorough cleaning.
There is a Cantonese saying "Wash away the dirt on ninyabaat" (年廿八,洗邋遢), but the practice is not to nin'ya'baat (年廿八, the 28th day of month 12). It is believed the cleaning sweeps away the bad luck of the preceding year and makes our homes ready for good luck.
Homes are often decorated with paper cutouts of Chinese auspicious phrases and couplets. Purchasing new clothing and shoes also symbolize a new start. Any hair cuts need to be completed before the New Year, as cutting hair on New Year is considered bad luck due to the homonymic nature of the word "hair" (fa) and the word for "prosperity". Businesses are expected to pay off all the debts outstanding for the year before the new year eve,
extending to debts of gratitude. Thus it is a common practice to send gifts and rice to close business associates, and extended family members.
In many households where Buddhism or Taoism is prevalent, home altars and statues are cleaned thoroughly, and altars that were adorned with decorations from the previous year are taken down and burned a week before the new year starts, to be replaced with new decorations. Taoists (and Buddhists to a lesser extent) will also "send gods" (送神, sòngshén), an example would be burning a paper effigy of Zao Jun the Kitchen God, the recorder of
family functions. This is done so that the Kitchen God can report to the Jade Emperor of the family household's transgressions and good deeds. Families often offer sweet foods (such as candy) in order to "bribe" the deities into reporting good things about the family.
Prior to the Reunion Dinner, a thanksgiving prayer offering to mark the safe passage of the previous year is held. Confucianists take the opportunity to remember the ancestors, and those who had lived before them are revered.
The biggest event of any Chinese New Year's Eve is the Reunion Dinner,named as "Nian Ye Fan". A dish consisting of fish will appear on the tables of Chinese families. It is for display for the New Year's Eve dinner. This meal is comparable to Christmas dinner in the West. In northern China, it is customary to make dumplings (jiaozi, 餃子, jiǎozi) after dinner to eat around midnight. Dumplings symbolize wealth because their shape resembles a Chinese sycee. By contrast, in the South, it is customary to make a glutinous new year cake (niangao, 年糕, niángāo) and send pieces of it as gifts to relatives and friends in the coming days of the new year.

First day
The first day is for the welcoming of the deities of the heavens and earth, officially beginning at midnight. It is a traditional practice to light fireworks, burn bamboo sticks and firecrackers and to make as much of a din as possible to chase off the evil spirits as encapsulated by nian (年) of which the term guo-nian (过年) was derived.This day, you live like a college student in somewhere -- which means no showers, laundry or cleaning.

Second day
The second day of the Chinese New Year, known as kā inián (開年/开年, "beginning of the year"), was when married daughters visited their birth parents, relatives and close friends. (Traditionally, married daughters didn't have the opportunity to visit their birth families frequently.) During the days of imperial China, "beggars and other unemployed people circulate from family to family, carrying a picture [of the God of Wealth] shouting, "Cai Shen dao!" [The God of Wealth has come!]."[18] Householders would respond with "lucky money" to reward the messengers.

Third day
The third day is known as Chìkǒu (赤口), directly translated as "red mouth". Chìkǒu is also called Chìgǒurì (赤狗日), or "Chìgǒu's Day". Chìgǒu, literally "red dog", is an epithet of "the God of Blazing Wrath" (熛怒之神). Rural villagers continue the tradition of burning paper offerings over trash fires. It is considered an unlucky day to have guests or go visiting.

Fifteenth day
The fifteenth day of the new year is celebrated as Yuanxiao Festival/Yuánxi ā ojié ( 元宵節), also known as Shangyuan Festival/Shàngyuánjié (上元節) or the Lantern Festival (otherwise known as Chap Goh Mei Chinese:
十五暝; pinyin: Shíwǔmíng; literally "the fifteen night" in Fujian dialect). Rice dumplings tangyuan (simplified Chinese: 汤圆; traditional Chinese: 湯圓; pinyin: tā ngyuán), a sweet glutinous rice ball brewed in a soup, are eaten this day. Candles are lit outside houses as a way to guide wayward spirits home. This day is celebrated as the Lantern Festival, and families walk the street carrying lighted lanterns.
Lunar New Year is basically like having an entire country throw a family reunion all at once

During the Chinese New Year 2014, some 3.62 billion passenger trips will be made, Map Shows 1.3 Billion Exodus in China for Year of the Horse.

It is traditional for every family to thoroughly cleanse the house, in order to sweep away any ill-fortune and to make
way for good incoming luck. Windows and doors will be decorated with red color paper-cuts and couplets with

popular themes of "good fortune" or "happiness", "wealth", and "longevity."

Kids open the red envelope to get their pocket money, unmarried young people also get lucky money from parents or relative. Even staffs get pocket money from the boss or elder on the first working day after holiday in Guangdong province in company.

Married daughter visiting home. Lunar New Year can be rough for singles, especially females.Many family reunions are highlighted by dreaded interrogations of singles who haven't settled down. Now there's a solution -- boyfriend rentals.
China's largest online retailer, Taobao, has a section for fake boyfriend rentals, so parents and relatives can finally stop nagging.
Renting a bogus marriage prospect ranges from RMB 500 ($82) to 8,000 ($1,321) per day.
The package comes with "a free embrace, hand holding and a goodbye kiss on the cheek," as well as a list of additional specific service charges.

Happy Spring Festival !!!

Friday, December 6, 2013

Cummins KTA38G5 Spare Parts

Cummins KTA38G5 spare parts list

We here share the KTA38G5 spare parts list, and welcome your inquiry if you need more information.