Packaging Details
Each product undergoes strict packaging to ensure safety and integrity during transportation. Packaging photos, painting...
SUCCESS OR FAILURE
Success or failure• Material: We cooperate with the top three professional wheel steel suppliers in China, using high-grade wheel-specific steel (420cl, 440cl, 490cl, etc.) to ensure the purity and flawless surface of the steel, guaranteeing the strength and durability of the product.
• Welding: We apply the most advanced fully automated robotic welding equipment in China, ensuring that every weld seam is full, smooth, and free of porosity, achieving international standards.
• Bolt Hole and Vent Treatment: Bolt holes are chamfered regularly and burr-free; vents are produced using a precision extrusion process to ensure strength and uniformity.
• Testing Equipment: We are equipped with dynamic balancing testing equipment to ensure the balance of the wheels, and use lateral & radial runout testing and other high-precision testing methods to ensure the quality of each wheel.
• Packaging Details: Each product undergoes strict packaging to ensure safety and integrity during transportation. Packaging photos, painting photos, production detail photos, etc. (all available).
Material
We cooperate with the top three professional wheel steel suppliers in China, using high-grade wheel-specific steel (420cl, 440cl, 490cl...
Welding
We apply the most advanced fully automated robotic welding equipment in China, ensuring that every weld seam is full,...
Testing Equipment
We are equipped with dynamic balancing testing equipment to ensure the balance of the wheels, and use lateral & radial runout...
Success or failure• Material: We cooperate with the top three professional wheel steel suppliers in China, using high-grade wheel-specific steel (420cl, 440cl, 490cl, etc.) to ensure the purity and flawless surface of the steel, guaranteeing the strength and durability of the product.
• Welding: We apply the most advanced fully automated robotic welding equipment in China, ensuring that every weld seam is full, smooth, and free of porosity, achieving international standards.
• Bolt Hole and Vent Treatment: Bolt holes are chamfered regularly and burr-free; vents are produced using a precision extrusion process to ensure strength and uniformity.
• Testing Equipment: We are equipped with dynamic balancing testing equipment to ensure the balance of the wheels, and use lateral & radial runout testing and other high-precision testing methods to ensure the quality of each wheel.
• Packaging Details: Each product undergoes strict packaging to ensure safety and integrity during transportation. Packaging photos, painting photos, production detail photos, etc. (all available).
COMPANY PROFILE
Gongka Heavy Industry Machinery (Shandong) Co., Ltd.
Gongka Heavy Machinery (Shandong) Co., Ltd. was established in 2019 and is located in Xishui Industrial Park, Guangrao County, Dongying City, Shandong Province. It benefits from convenient transportation, being just 200 kilometers away from Qingdao Port.
The company is a subsidiary of Shandong Zhengyu Wheel Group Co., Ltd, which has become one of top specialized wheel manufacturers integrating independent D&R, production and manufacturing, sales and service, as well as international trade over two decades development.
The company's product portfolio covers truck and bus wheels, agricultural wheels, construction machinery wheels and forklift wheels. Its self-developed brands include ZHENGYU, LUTONG, GKZG, SPW, POLARIS, HANTREK and SPTW.
Products are exported to more than 30 countries and regions in Europe, North America, Central and South America, Southeast Asia, the Middle East, Africa and Central Asia.
CUSTOMIZED
Customized Product Introduction
Welcome to our customized product section! Here, our professional team will provide you with tailor-made solutions to meet the unique needs of your market. Whether you are an individual user or a corporate client, we can create your ideal product based on your ideas and requirements.
We provide multiple options on materials, colors, vent designs, and other configurations to create a truly unique product just for you. All products are crafted using high-quality raw materials and advanced manufacturing processes, ensuring exceptional durability and reliability. We also offer flexible production cycles, allowing you to receive your desired customized product at the right time.
We always adhere to a "customer-centric" philosophy, providing you with professional advice and excellent service. If you have any questions during the design process, our technical team will provide timely guidance and support, ensuring a smooth and worry-free customization process.
We look forward to embarking on a personalized customization journey with you, creating a unique masterpiece!
PACKAGING
ADVANCED EQUIPMENT
The company has introduced the world's most advanced production technology of forged aluminum magnesium alloy wheels, and all the equipments are purchased from the international first class industry manufacturers: The CNC spinning machine of Germany LEIFELD and SSB company, the CNC machining center of Italy IMT, and the polishing machine of Spain AUTOPULIT company, and the robot of Switzerland ABB company, as well as the automatic detection equipment of BTI company of the United States, and has introduced 5 high automation production lines, equipped with more than 120 sets of advanced equipments,the robot is more than 50 units, the annual output is 3 million pieces.
PRODUCTION PROCESS INTRODUCTION
(1) Wheel Rim Manufacturing Process:
Slitting→Pickling→Washing→Passivation→Cutting→Engraving→Rolling→Pressing the ends→Butt Welding→Slag Scraping→Cooling→Grinding→Rounding→Flaring→Spin forming→First roll forming→Sizing and Expanding→Air-tightness Check→Piercing Valve Holes→Pressing the Valve Hole Surface
(2) Wheel Disc Production Process
Leveling→Circle Cutting→Punching→Spinning→Shaping→Combined Punching→Punching Vent Holes→Flattening the End Face→Machining the Center Hole→Adjusting the Outer Diameter→Shaping the Flatness→Precision Machining of Bolt Holes→Marking
(3) Assembly Process
Press Fitting→Spot Welding→Welding→Slag Removal→Inspect the lateral & radial runout of the welded wheel→Balance Inspection
(4) Painting Process
Grease Removal→Water Washing→Pickling→Water Washing and Neutralization→Phosphating→Water Washing→Electrophoresis→Drying→Painting/Powder Coating→Installing Valves
Forged Aluminum Wheel:
1. Aluminum Bar Inspection → 2. Sawing on a Banding Machine → 3. Heating in a Furnace →4. Forging: 6000-ton pre-forging, 10000-ton forming forging, 800-ton reaming forging →5. After cooling, spinning on a spinning machine → 6. T6 heat treatment solution furnace, quenching, heat treatment furnace, aging furnace → 7. CNC machining (rough turning, drilling, finish turning) → 8. Polishing → 9. Cleaning, deburring, marking, and packaging.
TECHNICAL STRENGTH
On the road of making progress, we are seeking for advanced technology and scientific and technological innovation. The company adopted theworld's advanced cathode electrophoretic coating production line, tubeless rim rolling machine and other advanced equipment and technology, and gradually realized the digitization and automation of production process,has become into the innovation practitioner of the domestic industry.
The company has been successfully passed ITAF16949 certification, European TUV certification, American DOT certification, Brazil INMETRO certification.
CERTIFICATE
ISO 9001
INMETRO
DOT
EAC
DRAWING
