Specifications:

Φ 2.5X3 meters Φ 3X4 meters Φ 3.2X4.5 meters Φ Specifications such as 3.8X6 meters, length can be made according to customer requirements. Cantilever rotary door, vacuum suction door. with Φ 2.5m × Taking 3m (straight section) as an example, the heating power is 30KW, and the drying time of the 2000KVA/10KV transformer body is 11 hours.

The variable pressure vacuum drying equipment is currently an ideal equipment for drying oil paper insulation power equipment such as power transformers and transformers with voltages of 220kV and 110kV and below. Compared with traditional hot air circulation drying and ordinary vacuum drying, it shortens processing time by about one-third, reduces energy consumption by 40% -50%, and significantly reduces water content after treatment.

Working principle of vacuum drying equipment:
By vacuuming, the saturated vapor pressure of water in the environment where the coil insulation material is located is reduced, making it easier for it to evaporate from the insulation paper. During this period, it is continuously heated and the temperature is raised to ensure the gasification energy of water, making it easier to discharge.

Characteristics of vacuum drying equipment:
Ordinary heating and drying start from the surface and gradually progress to the interior of the insulation material. Due to rapid surface drying, the capillary tubes of the outer insulation paper shrink, making it difficult for the internal moisture to evaporate and prolonging the drying time. The variable pressure method intermittently exhausts during the drying process, causing the evaporated water vapor and hot air to circulate together in the tank. Due to the much larger heat capacity of water than air, the heating speed is faster, and the diffusion of water vapor is strong, resulting in a relatively small temperature difference inside and outside the insulation material.

WxiJiniu Machinery Co.,ltd. formerly known as Wuxi Metallurgical Machinery Factory, registered trademark for "Jinqiu" brand, was founded in June 1969. It is in Wuxi city, 150 kilometers far from Shanghai city. We have been to stated enterprise, since 2002, we recombined to private company, and got fast development, we are one big group now, our group mainly produces hydraulic press brake, hydraulic shears, coiling feeding line--especially for aluimnum cap making, slitting line, cut to length, transformer machines....and other series product. It is one of the earliest factory in China to make these metal sheet machines.

The company covers an area of 62,000 square meters with 300 people. It has advanced production equipment’s with imported large CNC gantry milling machine, imported large CNC boring and milling machine, 100-ton carriageway and a series of iconic devices. Our excellent design team can make personalized products according to the users’ demands. At the same time, we have established long-term cooperation with some famous university, such as Jiangnan university, Nanjing University, Jiangsu University. Through our research staff innovation and hard work, we have received dozens of patents. At the same time, we have ISO and CE certifications.

In the domestic market, we set up many offices in different cities, Beijing, Kunming, Hefei…And to the international market, in many countries, we have sales and service agent, USA, Peru, Brazil, India, Russia…. Our engineers have been to those countries to install our machines. Because of our machine good quality and good after-sales service, the customers give us very high commend.

We hope to set up very good and long cooperation with more customers around the word.