Dongying Zerui Machinery Equipment Co., Ltd.
Similar suppliers you may like
Shandong Zhongrui Construction Machinery Co., Ltd.
🇨🇳 China
2001101-200 peopleManufacturer/Trading CompanyEstablished brand
Own brand
Patented technology
High-tech enterprise
Shipments
87
Key customer
JORGE VERA CORDOVA
Key market
🇻🇳 Vietnam
Description
Shandong Zhongrui Construction Machinery Co., Ltd., established in 2001 and headquartered in Weifang, China, is a professional manufacturer and high-tech enterprise specializing in the research, development, and production of rock drilling machinery. The company operates a modern 20,000-square-meter facility equipped with advanced CNC machine tools, deep hole grinders, and Axelin heat treatment production lines. With a workforce of approximately 101 to 200 employees, the company is recognized as the Weifang Drilling Mechanical Engineering Technical Research Center and maintains an ISO 9001:2015 certified quality management system.
The company’s extensive product portfolio is organized into five core series: high and low air pressure down-the-hole (DTH) drilling tools, top hammer (thread) drilling tools, pneumatic rock drills, large-diameter DTH tools for pile foundation rescue, and specialized drilling tools for oil, gas, and water wells. Specific products include DTH hammers and bits, cluster type hammers, eccentric and concentric drilling tools, and the YT28 air leg rock drill. These tools are engineered for high reliability and performance in soft and hard rock environments.
Shandong Zhongrui serves a diverse range of industries, including mining, tunneling, geothermal energy, and national defense construction. In addition to its strong domestic presence, the company holds an independent export license and ships its "ZR" brand products to over 20 countries, including Russia, Australia, and South Korea. Through continuous collaboration with universities and research institutes, the company remains a leading innovator in the domestic rock drilling machinery industry.
API Reg Thread Drilling DHD340 Down The Hole Hammer$780
Blasting Hole DHD360 178mm Drill Bit
140mm DHD350 DTH Drill Bit for Coal Mining$220
219mm Overburden Eccentric Casing System Odex
DHD340 127mm Drill Bit Blasting Hole
Mach44 115mm Drill Bit Blasting Hole
Mining Ore Coal Drill Bit
Best Selling Drill Bit Tungsten Carbide
Dongying Changrui Investment Casting Co., Ltd.
🇨🇳 China
2005101-200 peopleManufacturerEstablished brand
OEM manufacturer
Product customization
High-tech enterprise
Shipments
75
Key customer
AMOS INDUSTRIAL
Key market
🇺🇸 United States
Description
Dongying Changrui Investment Casting Co., Ltd. is a professional manufacturer and OEM service provider specializing in precision metal castings. Based in Dongying, Shandong Province, China, the company operates a 38,400 square meter facility equipped with advanced inspection tools from Japan and processing machinery from Korea. Established in the mid-2000s, the company employs between 100 and 200 personnel and maintains a strong focus on research and development through a partnership with the Shandong Science and Technology University.
The company specializes in the lost wax silica sol shell process, a technique superior to water glass casting for producing complex, high-precision components. Their extensive material capabilities include stainless steel, carbon steel, heat-resistant steel, alloy steel, aluminum, and ductile iron. Key product lines serve diverse industrial sectors, including automotive (exhaust manifolds, engine parts), fluid control (pump housings, impellers, valve castings), and heavy machinery (petroleum accessories, marine fittings, and construction hardware). They also produce specialized items such as camlock couplings, meat grinder parts, and heat treatment baskets.
Dongying Changrui Investment Casting Co., Ltd. maintains rigorous quality standards, holding IATF 16949, ISO 9001, and ISO 14001 certifications. With a monthly production capacity of approximately 80 tons, the company serves a global clientele, including major international brands such as FIAT AUTO, Caterpillar, and the Dixon Group. Their strategic location near the Qingdao port facilitates efficient export operations to markets across Europe, North America, and Asia.
Exhaust Manifold
Pipe Clamp
Lock Fitting
Petroleum Machinery Accessory
Valves Fittings
Quick Joint
Meat Grinder Body
Auto Parts
Ring Gear
