CHINA JIANGSU JUWEI MACHINERY CO.,LTD
CHINA JIANGSU JUWEI MACHINERY CO.,LTD
CHINA JIANGSU JUWEI MACHINERY CO.,LTD
CHINA JIANGSU JUWEI MACHINERY CO.,LTD
CHINA JIANGSU JUWEI MACHINERY CO.,LTD

PRODUCTS

ABOUT US--SINCE 1994

Jiangsu Juwei Machinery Co.,Ltd

Jiangsu Juwei Machinery Co.,Ltd is high-tech manufacture enterprise established since 1994, built with State Pile hammer Engineering Technology Research Center. JUWEI D series diesel pile hammer, DD series guide-rod diesel pile hammer, JWY hydraulic impact hammer, ZJB series hydraulic walking piling rig and winch are very popular among worldwide customers. The enterprise obtains the ISO9001 and CE Quality System certification. JUWEI has built 3 factories, working for manufacturing, assembling and examination. JUWEI is always putting effort on sophisticated facilities to structure a perfect quality management system, while it is the ONLY hammer manufacturer in China built with Pile Hammer Test Station before shipments. Depend on good reputation, excellent product quality and perfect after-sales service, JUWEI gains the trust from local and overseas customers, including the United States, Russia, Indonesia, Philippine, Vietnam, Brunei, Africa, Korea etc. JUWEI Pile hammers participate in HK-Zhuhai-Macao bridge, Donghai bridge and Yangshan port wharf, Xiangshui offshore Wind-power project, Golden gate bridge in Taiwan, Fujian Pingtan bridge project etc., and successfully completed all project tasks. Xu Xianghua, Chairman of JUWEI along with all JUWEI staff, warmly welcomes all local and overseas customers visiting us for business negotiations. Your presence is our glory, and your satisfaction is our consistent goal.

History of Jiangsu Juwei

Jiangsu Juwei has been committed to the pile hammer business for more than 20 years. During this period, it not only obtained a number of product patent technology certificates, but also laid a solid foundation for the overseas construction market.

Contact Us

Add:Western industrial Park, Dongtai City, Jiangsu Province, China

ZIP:224217

TEL:+86-515-85422299

FAX:+86-515-85422399

HOT LINE:+86 13661556708

WEB:www.jwhammer.cn

           www.jsjuwei.cn

EMAIL:jwjx@jsjuwei.cn

 

WHY CHOOSE US

After-sales service

1.Understand the background of customer engineering projects

2.Guarantee 7-14 working days to arrive at foreign construction sites for service

Quality Control

1.Design, produce, assemble and inspect in strict accordance with the creation standards of pile hammers

2.Have independent product number, quality certificate and product description

Technical Support

1.Understand the client's engineering project background and construction capabilities

2.Equip customers with professional production technical engineers

Team style

1.Stable team operation and strong corporate cohesion

2.Have a rigorous working attitude and serve customers in the details

TEL

86-0515-85422299

EMAIL

jwjx@jsjuwei.cn

MOBILE

+8613661556708

LATEST NEWS

How to drive hydraulic pile hammer?

How to drive hydraulic pile hammer? As for the piling method of the hydraulic piling hammer, as a piling hammer manufacturer, let Xiaobian take you to find out! Hydraulic power station, piping system, oil cooling system, electronic control system, control system, striking system can be used for upgrading and upgrading of hydraulic power hammer. Through improvement, the technical parameters of the full hydraulic free forging hammer are consistent with the whole machine. It is suggested to directly change the original hydraulic die forging hammer to a program-controlled full hydraulic die forging hammer. Of course, in order to save costs, the full hydraulic free forging hammer can also be transformed into a follow-up control full-hydraulic die forging hammer, compared with the program-controlled full-hydraulic die forging hammer with follow-up control. When hitting, it can realize the hammer action at any position, and the hitting is highly random. It is especially suitable for occasions with high requirements for auxiliary processes such as rolling extrusion and elongation and complicated process changes. However, the consistency of forging is worse than that of the program-controlled hammer, and the forging effect is highly dependent on the skill of the operator.

27 May-2022

Introduction of Diesel Hammer Pile Driver

Diesel engine hammers are divided into guide rod type and barrel type according to their structure. The guide rod type diesel engine hammer uses the plunger pump as the hammer seat to press on the pile cap, and uses the cylinder as the high chrome alloy hammer head to lift along the two guide rods.When the foundation is piling, the diesel hammer manufacturer first hoists the pile to the pile frame and the gantry for hoisting, and then puts the diesel hammer on the top of the pile, lowers the lifting hook to hang the cylinder, and loosens the lifting hook to let the cylinder fall into the sleeve. The plunger pump expands and shrinks the closed gas in the cylinder, and the cylinder descends again until the pressure pin outside the engine cylinder pushes the remote rod of the high-pressure oil pump on the hammer seat, and the high-pressure oil pump sprays the oil mist into the tank body. The oil mist hits the high-temperature vapor around the ignition point and immediately deflagrates. The bouncing force moves down the pile and pushes it upward to warm the cylinder. When the cylinder falls along the guide rod again, it starts to impact again. circulatory system.The cylinder type diesel engine hammer uses the cylinder as the hammer seat, and immediately uses the extended cylinder liner inner cavity for guidance, eliminating the need for two guide rods. The plunger pump is a high-chromium alloy hammer head, which can exercise up, down, left and right in the cylinder. . When the foundation is piling, the pile cap under the hammer seat is pressed on the top of the pile, and the plunger pump is raised with a lifting hook, and then the downward impact is decoupled to reduce the gas enclosed in the cylinder. And carry out oil pump, outbreak, impact, ventilation, etc. The whole process of work. The diesel engine hammer is started by a compression ignition diesel engine, so it is necessary to ensure that the closed gas in the cylinder exceeds the necessary compression ratio. If the reduction amount is insufficient and the detonating tube cannot be ignited, it is necessary to use the lifting hook to hang the high-chromium alloy hammer several times to decouple the impact and start it. The hammer seat of the diesel engine hammer is equipped with a fuel injection pump, an automobile fuel tank, a water cooling water storage tank and a pile cap. The subject movement gap between the plunger pump and the cylinder liner is sealed with a ductile plunger pump ring.

15 March-2022

How to choose hydraulic hammers?

The price of a full hydraulic electro-hydraulic hammer is about 1 million yuan or 2 million yuan each. The price of full hydraulic electro-hydraulic hammer is affected by brand, category, specification, market and other brands. Before choosing to buy, it is necessary to understand and compare multiple aspects. The full hydraulic electro-hydraulic hammer is a substitute for the traditional electro-hydraulic hammer, and it is a new type of forging equipment that is more energy-saving and environmentally friendly. The working principle is similar to that of the electro-hydraulic hammer. After the improvement, the striking frequency can be increased, the oil temperature can be reduced, the service life can be prolonged, the quality of the forgings can be improved, and a lot of energy can be saved. Hydraulic hammer belongs to impact pile hammer, which can be divided into single-acting type and double-acting type according to its structure and working principle. The so-called single-acting type means that the impact hammer core is quickly released to a predetermined height by a hydraulic device, and the impact hammer core falls freely. Double-acting type means that the impact hammer core is lifted to a predetermined height by a hydraulic device, and the acceleration energy is obtained from the hydraulic system to increase the impact speed. This also corresponds to the two piling theories. The single-acting hydraulic pile hammer corresponds to the light hammer theory. It has the characteristics of large hammer core weight, low impact speed and long hammering time. The pile hammer has a large penetration per strike, is suitable for pile types of various shapes and materials, and has a low damage rate, especially for concrete pipe piles. The double-acting hydraulic pile hammer corresponds to the light hammer and heavy hammer theory. It has the characteristics of low weight of hammer core, high impact speed and short action time of hammer pile. The impact energy is large, which is more suitable for steel piles.

16 March-2022

Advantages of hydraulic hammer

The intelligent control system of hydraulic pile hammer adopts PLC control to realize automatic control of hydraulic system and electrical system, data display of piling process, emergency alarm, emergency stop and other functions, which improves the safety of the product. The use of high-energy storage, single-action, free-conversion dual-circuit hydraulic system can make the hammer body fall quickly, improve the striking ability of the pile hammer, and use motor drive instead of diesel engine drive, which eliminates the environmental pollution caused by diesel combustion and meets environmental protection requirements. The semi-closed shape structure reduces the overall weight of the pile hammer and achieves the purpose of energy saving. The hydraulic impactor can be powered by the pile driver or connected with a special power station, and there are a series of supporting power stations for users to choose. All electrical circuits and hydraulic systems can be easily operated using the control panel or remote control. The whole machine adopts the oil-closed mode. By adjusting the speed and oil pressure, the equipment is reliable and environmentally friendly, while taking into account the efficiency and safety. The striking energy and striking frequency are not affected by the reaction force of the foundation. It is completely dependent on the operator to control the striking process of the hydraulic pile hammer through the electronic program, which can avoid the phenomenon of sliding piles and realize the light strike action of the heavy hammer. The striking efficiency of the hydraulic pile hammer is higher than that of diesel oil. The hammer is many times higher. High kinetic energy, low hammer speed and low hammer stress.

17 March-2022

How to maintain the hydraulic hammer?

Since the working environment of the hydraulic hammer is generally poor, it is easy to cause failure. In order to eliminate hidden dangers and shorten the maintenance cycle, it is necessary to carry out daily and regular maintenance. 1. Routine maintenance. 1) Keep the vibrating hammer clean, and clean the oil, dust, rust and water on the hammer body and power station after each shift. 2) Check the fasteners frequently to keep the connection firm and reliable. 3) Each lubrication point should be lubricated according to the lubrication requirements. 4) The hydraulic oil in the oil tank should be kept at a normal level, and the oil temperature should be kept at a normal level. Always check the cleanliness of the oil and place contamination. 5) Always check whether there is water in the hydraulic oil tank. If the oil is emulsified, remove the water or replace the hydraulic oil immediately. 6) Always check whether the instrument is stable and ready for normal operation, otherwise it should be repaired or replaced. 7) Check the oil circuit system for oil leakage and deal with it in time. 8) Check whether the liquid level of diesel tank, fuel tank and cooling water tank is normal. If the liquid level is too low, please replenish it in time 2. Regular maintenance. Regularly clean the fuel tank and replace the hydraulic oil. During the break-in period, it works continuously for 500 hours, and the hydraulic oil is replaced once, the second time after three months, and the third time in September. The replacement time depends on the situation. 4) The hydraulic oil in the oil tank should be kept at a normal level, and the oil temperature should be kept at a normal level. Always check the cleanliness of the oil and place contamination.

27 May-2022

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