Company Introduction

Huzhou Longshan Machinery Co., Ltd. (formerly Huzhou Yinxin Rolling Co., Ltd., a new company founded due to development needs) is a manufacturer specializing in the production of cold-hard cast iron plungers, resin sand, coated sand castings (QT500, HT250, HT300, etc.), and cast iron rolls (three major categories of cold-hard, infinite, and ductile ink). The products are widely used in oil pressure, hydraulics, papermaking and other machinery, medicine, elevators and other industries. It was founded in 1984 and is one of the first 84 key backbone enterprises in the national metallurgical industry to obtain a cast iron roll production license. It has a history of casting and processing and production.

The company has a registered capital of 10 million yuan, currently has 120 employees, and an annual production capacity of 8,000 tons. The products are mainly sold to Jiangsu, Zhejiang, Shanghai, Anhui, Fujian, Jiangxi, Hunan and other regions, and are spread all over the country. Plunger products are listed as designated exclusive suppliers by large well-known enterprises such as Dongyu Hydraulic Industrial Co., Ltd., Hunan Yiyang Rubber and Plastic Group. Resin sand castings and rolling products are sold well in the domestic market.

The company has always been committed to relying on technology to develop. From the production of single ordinary low nickel chromium rolls, we have continuously successfully developed a series of products such as nickel chromium molybdenum cold hard cast iron rolls, rubber rolls, and bearing rolls. The use of cupola to pouring with medium-frequency electric furnaces has been continuously improved. It adapts to the ever-developing market demand and improves the market competitiveness of enterprises. Dare to invest in innovation, open up the market, increase economic growth points, and develop new product hydraulic press pistons through market research and combined with their own advantages. Compared with traditional hydraulic pistons, the new hydraulic press piston has the characteristics of uniform working surface hardness, good finish, high strength, good wear resistance and long service life. It has been well reflected by users and is very popular in the market.

In order to consolidate and expand the market and continuously improve the market competitiveness of the company's products, the company has always adhered to the quality policy of 'adhering to scientific and technological progress, adopting advanced processes, improving product quality, and meeting customer needs', and strives to achieve the quality goal of 'customer satisfaction rate reaches more than 99%, product inspection pass rate 100%, and product quality reaches the domestic advanced level'.