plastic pen making machine Plastic Injection Molding Machine plastic promotional ball pen

High efficiency, Energy-saving and high precise proportional pressure and flow variable displacement pump system make the out of the hydraulic system matching the required power for entire machine operation without loss of high pressure throttle and overflow energy. As comparedwith constant displacement pump, t saves power by 30%~60%.A motor with same power may be fitted with an oil pump of bigger displacement and thus accelerates the speed of machine.Besides, the low oil temperature will prolong the service life of sealing elements.
Buffer device is used in every mold opening and clamping oil way to ensure steady mold opening and clamping operation without any impact.Besides, differential mold clamping operation is fitted to ensure high production efficiency.
High Energy saving
Under the ideal working state, Power consumption is 40% less than that of variable displacement pump and 70% less than that of fixed displacement pump, save the cost effectively.
High precision
Precise control of low pressure & low flow, repeating precision is less than 0.5%. Weight error of the products is 0.4%~0.7%, with semi-close loop system nearly.
Fast response
With steady capability, servo gearshift dynamical control system has equipped with pressure feedback device with high precision and sensitivity, which forms close-loop precision control, cycle time effectively shortened and improving production efficiency.
Oil temperature rise slowly
The system can restrain arising of oil temperature, so smaller oil cooling system can be used in the machine.
PQ control
Control pressure and flow simply by inputting simulated voltage of pressure & flow into the computer.
Low noise
Different from ordinary fixed pump injection molding machine, servo power-saving injection molding machine is working only when necessary. And working noise is less than LOG-A8 series, will be much quieter for your working area.

NINGBO HAIJIANG MACHINERY MANUFACTURING CO.,LTD., situated in Ningbo Yinzhou Investment & Innovation Center, coversa land of more than 50,000M2.It was established in 1992 and now employs a staff of more than 500 people. with CE and ISO9001

Haijiang Company is a hihg-tech enterprise specialized in manufacturing injection molding machine that mainly covers dozens of speci?cations with injection shot of 45-2,0000g and mold clamping force of 400-15,000KN. Based on the marrow of the trade gained and through years' accumulation, the company has made constant innovation to ensure the machine quality.Parts built into the machines of defferent mold locking forces are all processed under specialized management. HJF series injection molding machines are developed by Haijiang Company on the basis of a collection of the advantages assimilated from all world famous brand machines with optimized design realized by CAD/CAM/CAPP where technical problems such as noise of the entire machine and low energy dissipation are removed and thus the design quality of products is secured. The company adopts advanced equipment and technology and applies scientific management. Besides, it has introduced high-precision full automatic CNC machines fitted with imported electric and hydraulic parts, which have tremendously improved the accuracy and steadiness of the whole machine. Its present products such as HJK and KJF series and widely applied in the electronic, automobile and civil industries.
In order to participate in competition in the world market,the company has clustered a group of high quality technical and managerial personnel with innovative spirit by means of optimized combination fo personnel. The company faces the society and users by acting on the principle of pursuit for ?rst class and sincere service. We will appreciate friends from all circles who have given their concern and support to Haijiang machines with first class products and first class after service.