Zhejiang Boxing Industry and Trade Co.,Ltd

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Company name:Zhejiang Boxing Industry and Trade Co.,Ltd
Address:No. 1188, Meihe Rd, Jinhua City, Zhejiang Province, 321017, China
Contact:Eric Ge
Website: www.bo-xingcamshaft.com

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The Camshaft Position In The Engine

In a long time before, bottom type camshaft in internal combustion engine is most common. Usually this engine, the valve is located in the top of the engine, the so-called OHV engine (OverHeadValve, overhead valve). At this point the camshaft is located in the side of the crankcase, usually through distribution agencies (e.g., tappet, push rod, rocker arm, etc.) to control the valve. Therefore stove bottom camshaft also called offset type camshaft in general. Because the valve in the engine camshaft distance far away, and usually only two each cylinder valve, so speed usually slower, comfort, and the output power is low. But the structure of the engine output torque and low speed performance is good, the structure is simple, easy to maintenance. Now most of the car number of engine is equipped with overhead camshaft. Overhead camshaft type structure makes the camshaft is more close to the valve, reducing the stove bottom camshaft due to the large distance between the camshaft and valve between kinetic energy waste. Overhead type camshaft engine because the valve opening and closing action more quickly, higher speed, smooth degree of the movement of the better. Earlier appeared overhead type engine camshaft structures are SOHC (SingleOverHeadCam, single overhead camshaft) engine. The engine was installed at the top only a camshaft, so generally each cylinder only two or three valve (one or two at the inlet and exhaust a), limited by the high speed performance. And technology to update some is DOHC type (DoubleOverHeadCam, overhead camshaft) engine, the engine because is equipped with two camshafts, each cylinder can be installed four to five valve (two) intake from two to three, exhaust, high-speed performance has been significantly promoted, but meanwhile, low-speed performance will be affected by certain effect, the structure becomes complicated, difficult to repair.

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Address:No,1188 , Meihe Rd, Jinhua City, Zhejiang Province , 321017,China





Company Info

ZHEJIANG BO XING INDUSTRY AND TRADE CO., LTD, proformly called “ZHEJIANG SIXING MACHINING CO., LTD”was founded in 1995, is located in Jinhua city, Zhejiang Province.,There are 400 kilometers from Shanghai port , and about 250 kilometers from Ningbo port in distance.
. Our company covers an area about 35000 square meters with total assets about RMB 150 million Yuan, the building area is about 27000 square meters. There are 550 employees, including more than 60 people who are senior and middle level professional persons.
The Company specialized in producing camshafts and balance shafts of car engines, motorcycle engines, general-use gasoline engines, diesel engine. the annual productivity is about 4.5 million pieces. it has a regular organization, which consists of nine functional departments,, a foundry, three machine plants in the company .
Our company has 450 sets of various types of production equipment, such as CNC cam grinding machines,, CNC lathes, CNC hobbing machines, CNC gear shaving machines, CNC cylindrical grinders, CNC milling machines,, automatic washing machine, etc. The equipment number centralized ratio is over 75%, in 2012s, we company purchese one set of auto cam grinder from Toyoda of Japan whose number is GC20M-63 .
It has enough capability for self-supporting the blank of camshafts and cast pieces. The company's foundry is equipped with a vertical-type non-pressure molding line box shot (ZZ416A) and has an annual output

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