Dongying Shengchang Petroleum MachineryCo., ltd, established in September 2003, is located in the beautiful and rich Yellow River Delta Center City - Dongying, Shandong province. With the sustainable development, Shengchang has become the major supplier and manufacturer of high pressure plunger pumps for the Petroleum industry; it is also the only petroleum machinery enterprise in Shengli Oilfield which is specialized in the production of reciprocating plunger pumps for water injection.

Shengchang Petroleum Machinery Co., Ltd has three standard manufacturing plants over 18,000 square meters. More than 70 units of processing equipment and inspection equipment that secures annual processing capacity of 350 sets.

In order to hold the competitive advantage, Shengchang has set its own New Product R&D center to make advanced products in terms of High pressure plunger pump, High pressure booster pump, Carbon dioxide pump and Skid-mounted plunger. In 2004, Shengchang approved ISO19001:2000 quality management system certification.

The company consists of sales management center and agencies at the major oil fields in the country to provide the pre-sales, sales and after-sales services for customers. With the management philosophy of “Taking technology as the forerunner and the quality as the core”, and the tenet of “always acting more than demand of customers and bringing supervises to customers”, the company proactively advocates "Honesty, Responsibility, Innovation, and Double-Win" into its corporate culture, devoting to serve the country and the world.

Features of reciprocating high pressure water injection pump consist of high pump efficiency,  stable and reliable work, convenient operation, pressure displacement can be adjusted widely, long service life of vulnerable parts and easy to replace. This kind of pump has been widely used in oilfield injection, well washing, microorganism injection and other hydraulic power equipment.