Automatic Energy Saving Injection Molding Machine For Plastic Photo Frame

The variable displacement pump driven by servo motor does not rotate when it is in standby state, and only the energy of servo motor driver is wasted. Take 11kW servo motor as an example, the current is less than 1A. The variable displacement pump driven by asynchronous motor rotates at constant speed in standby state, but there is no flow or pressure. The standby current measured on 11 kW injection moulding machine is 7A, which is 29% of the rated current of 11 kW motor. This is because the efficiency of asynchronous motor at rated load is about 90%, but when the load is less than 50%, the efficiency decreases dramatically. British companies provide "energy-saving treasure" to reduce the supply voltage of asynchronous motor at low load, thereby reducing excessive flux of copper coil, reducing losses and achieving energy-saving effect.

The oil temperature of a 50 ton injection moulding machine injection moulding single cavity air cup is only 37 C in the summer of South China and without pressure oil cooling. For example, the temperature rise of pressure oil is an indication of energy saving, which is beyond the expectation of variable displacement pump driven by asynchronous motor.

In addition, the servo motor driven oil pump can provide 3/4 closed-loop control. Accurate speed and pressure control are prerequisites for stable productivity. Because the oil temperature is not high, the fluctuation of oil temperature is also low, which improves the stability. Low oil temperature can also save or even remove the need for pressure oil cooling.

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.