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Zhonggong – Integrated Forging & Precision Machining Solutions
Forging quality, casting strength.
One-Stop Supply Chain Solution Provider
Zhonggong possesses mature processes for closed-die forging, open-die forging, and ring rolling; we can manufacture forged products from various materials—such as carbon steel, alloy steel, stainless steel, and tool steel—based on customer drawings or samples.
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Forging quality, casting strength.
Solutions for High-Strength Precision Metal Components
The company has established a comprehensive quality traceability system covering the entire process—from raw material intake and forging/machining to the dispatch of finished products—ensuring that every item meets customer requirements and international standards.
Inquire NowForging quality, casting strength.
Forged & Machined Metal Parts One-stop Manufacturer
Integrated hot forging, heat treatment and precision CNC machining services. Improve metal mechanical performance with complete metal flow lines. Strict micron tolerance control, carbon steel, alloy steel, aluminum alloy available, OEM & ODM for auto, machinery, new energy equipment.
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Custom Precision Steel Forgings and Machining—Covering a Full Range of Sizes and Materials
Rich Product Series
Quality Service
Strong R&D Capabilities
Global Sales Network
Reliable Reputation
Prompt Response
Rich product variety
Zhonggong is equipped with advanced CNC machining centers, providing customers with one-stop precision machining services ranging from raw blanks to finished products.
ABOUT US
Complete series of forged and machined parts
Zhonggong consistently adheres to a customer-centric approach driven by technological innovation, deeply cultivating the fields of forging and precision machining.
- Threaded/Fastener ComponentsExplore threaded fastener components from Zhonggong, including bolts, nuts, screws and fittings with custom machining and global thread standards.
![Threaded/Fastener Components]( "Threaded/Fastener Components")
LEARN MORE → - Box-type or Housing-Type PartsPrecision box-type housing parts for reducers, pumps, valves and motors. Zhonggong delivers forged strength, accurate bores and full inspection.
![Box-type or Housing-Type Parts]( "Box-type or Housing-Type Parts")
LEARN MORE → - Flange forgingsFlange forgings are disc-shaped connectors used in piping systems to connect pipes, valves, pumps, pressure vessels and other equipment. Forged flanges have a dense internal structure free of porosity and shrinkage, with grain flow following the flange contour – providing excellent sealing performance, compressive strength and fatigue resistance. Compared with cast flanges, forged flanges are more reliable under high pressure, high temperature, cyclic loads and corrosive media. Widely used in petrochemical, natural gas, power generation, marine, pharmaceutical and food engineering.
![Flange forgings]( "Flange forgings")
LEARN MORE → - Slewing bearing ringsSlewing bearing rings are the core components of slewing bearings (turntable bearings), typically consisting of inner and outer rings. They support axial loads, radial loads and overturning moments. Manufactured by precision ring rolling or die forging, these rings feature a dense structure and continuous grain flow. After induction hardening of the raceway, they provide excellent contact fatigue strength and wear resistance. Widely used in cranes, excavators, wind turbines, solar tracking systems, robotic turntables and port machinery.
![Slewing bearing rings]( "Slewing bearing rings")
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Company Profile
ABOUT US
Zhonggong is a comprehensive manufacturing enterprise specializing in the R&D, production, and sales of forgings and machined parts. Headquartered in Shandong Province, China, and leveraging the region's robust industrial foundation and complete supply chain ecosystem, the company is dedicated to providing high-quality, high-precision metal component solutions to global customers.
For years, Zhonggong has remained committed to a customer-centric and innovation-driven approach, deeply cultivating the fields of forging and precision machining. Its business operations span a wide range of industries, including construction machinery, mining equipment, petrochemicals, electric power and energy, rail transportation, and automotive manufacturing.
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One-Stop Service
From raw material procurement, forging of blanks, heat treatment, and precision machining to surface treatment and finished product inspection—the entire process is completed within a single integrated system.
One-Stop Service
From raw material procurement, forging of blanks, heat treatment, and precision machining to surface treatment and finished product inspection—the entire process is completed within a single integrated system.
Customization Expertise
During the forging stage, we can incorporate machining allowances and locating datums, ensuring efficient and stable mass production—even for complex, irregularly shaped parts.
Customization Expertise
During the forging stage, we can incorporate machining allowances and locating datums, ensuring efficient and stable mass production—even for complex, irregularly shaped parts.
Full Traceability
We provide material and dimensional reports as standard and can issue EN 10204 3.1/3.2 certificates, ensuring your procurement is completely secure.
Full Traceability
We provide material and dimensional reports as standard and can issue EN 10204 3.1/3.2 certificates, ensuring your procurement is completely secure.
Why Choose Us
High Efficiency & Good Service
Customization Available
We accept customised products and fully support OEM/ODM in all forms and sizes, as well as having standard stock and custom cuts.
Support Free samples
We provide free samples and when you place anormal order we will reduce the cost of shipping and samples from the cost of your normal order.
Flexible MOQ
We support a minimum order quantity of per tonne and a minimum order quantity of just 1 tonne.
Our Service
Services We Provide
Rich product series
With a global product network, seamlessly meeting international market needs
Strong R&D capabilities
Keep up with international market trends and continuously innovate products and services
Quality service
Deliver comprehensive one-stop bespoke professional services
Global sales network
The products are sold well at home and abroad and are widely favored by customers
News Center
Stay Ahead with Industrial Innovation Insights
![What Matters Most When Sourcing Automotive Machined Parts for Safety-Critical Systems?]( "What Matters Most When Sourcing Automotive Machined Parts for Safety-Critical Systems?")
What Matters Most When Sourcing Automotive Machined Parts for Safety-Critical Systems?Automotive Machined Parts for safety-critical systems demand more than low pricing—discover how to assess quality, traceability, PPAP readiness, and supplier reliability before you source.![Railway Forged Parts: Key Material and Fatigue Requirements for Long-Life Service]( "Railway Forged Parts: Key Material and Fatigue Requirements for Long-Life Service")
Railway Forged Parts: Key Material and Fatigue Requirements for Long-Life ServiceRailway Forged Parts demand clean steel, precise forging, and strict fatigue control for long service life. Learn what ensures safer, more durable rail components.![How to Reduce Wear Failures in Mining Equipment Parts Under Abrasive Conditions]( "How to Reduce Wear Failures in Mining Equipment Parts Under Abrasive Conditions")
How to Reduce Wear Failures in Mining Equipment Parts Under Abrasive ConditionsMining Equipment Parts wear less and last longer when material selection, heat treatment, machining accuracy, sealing, and installation are optimized. Learn practical ways to cut failures and downtime.
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Applications in various industries
Operations span multiple industries, including construction machinery, mining equipment, petrochemicals, electric power and energy, rail transportation, and automotive manufacturing.
Zhong Gong Service Process
Whether you require a supply of standard parts or the custom development of complex non-standard components, we provide professional, reliable, and efficient service.
Proposal and Quotation
Engineers devise the optimal combined "forging + machining" process plan.
Tooling & Samples
Upon confirming the intention to cooperate, we initiate mold design and manufacturing.
Purchase Order
Once you have verified that the samples meet specifications, a formal contract for mass production will be signed.
Please give us a message
Zhonggong Iron & Steel (Shandong) Group Co., Ltd.
Phone ： ＋86 15806698096
WhatsApp ： +86 13863523333
WeChat ： ＋86 15806698096