Zhejiang Tongli Heavy Gear Co., Ltd has more than 20 years Gear manufacturing experiences. We have various types of high-precision processing equipments and inspection equipments of Gear, which can produce Spur Gears, Cylindrical Helical Gear, Inner Spur Gear, Helical Inner Gear, Inner and Outer Splines, Spiral Bevel Gear, Worm-Wheel and Worm etc.
Cylindrical Gear adopts high-quality Carbon alloy steel, conventional materials are 20CrMnTi, 20CrMnMo, and also can provide materials such as 18CrNiMo7-6(17CrNiMo6), 17Cr2Ni2Mo, 20CrNi2Mo etc. Of Gear parts. And after carburizing and quenching and Gear grinding processing, the hardness of Gear surface up to HRC 58~62, the accuracy of Gear surface up to maximum level 3 and conventionally provides the accuracy of level 5, 6, 7 (DIN3961. ., ISO1328, GB10095).
Annulus Gear can adopts high-quality and high-strength alloy steel after quenching, the accuracy of Gear shaping and Gear grinding processing, and the accuracy of Gear grinding processing between level 5~7, then the accuracy of Gear shaping surface up to level 7. The maximum diameter of Outer Gear be 2000mm, the maximum modulus be M40; The maximum diameter of inner Gear be 2500mm, the maximum modulus be M25.
Helical Bevel Gear adopts high-quality Carbon alloy steel, conventional materials are 20CrMnTi, 20CrMnMo, also can provide materials such as 18CrNiMo7-6(17CrNiMo6), 17Cr2Ni2Mo, 20CrNi2Mo etc. Of Gear parts. And after carburizing and quenching and Gear grinding processing, the hardness of Gear surface up to HRC 58~62, the accuracy of Gear surface up to maximum level 6(GB/T11365, ISO17485), The maximum processing diameter be 800mm, the maximum modulus be M16.
The Worm-Wheel adpots those materials such as Tin Bronze and Aluminum Bronze, and be hobbing process. The Worm adpots medimum carbon alloy steel and conducted quenching and tempering process or adpots carbourizing of low carbon alloy steel, conduct surface hardening treatment after quenching and grinding process after heat treatment.
Zhejiang TONGLI Heavy Gear Co., Ltd is a professional company which dedicated in researching & developing (R&D), manufacturing and marketing transmission equipments, such as general gear units, wind power generation gearbox and heavy gearbox. Our product has been rated as "Zhejiang Brand-name Products", our company successively awarded the "China Well-Known Trademark", "National High-tech Technology Enterprise", "Provincial Level Enterprise of Technology R&D Center", "Nationwide Credibility and Law-abiding Enterprise", "Zhejiang Famous Trademark", "Zhejiang Technical Innovation Excellent Enterprise" etc. Honorary titles.
The company has two production factories which covers an area of 130 acres (for both General Gear Reducer and Wind Power Generation Gearbox divisions) with garden-factories and scandalized workshops. Currently our main products are Helical gear reducer, Rigid tooth flank gearbox, Spiral bevel gear reducer, Worm gear reducer, Planetary gear reducer and sort eleven series products. Two of those series products are included as National Key New Product and National Torch Plan Project respectively. Our products are widely applied in both light and heavy mechanical transmission fields such as lifting transportation, mining machinery, engineering construction, food packaging, petroleum and petrochemical, pharmaceuticals, textile dyeing, rubber and plastics, environmental protection equipments, etc.
Our company implemented "DIFFERENTIATION" strategy for product development, and continuously increasing investment in technology research and development (R&D), optimizing research conditions and methods. Also, we achieved cognizance from Zhejiang provincial enterprise technology center. Our company possess modernization factory, as we imported more than 300 sets of advanced gearbox process and detection equipments from Switzerland, Germany, United State, Japan and Korea. Which increase all of the important procedures with world-class level of various types of CNC machine tool, and the product manufacturing process and all equipments with the leading domestic level. We have awarded the ISO9001 international quality system certification and ISO14000 environmental management system certification.
Our company has the rights of self-managed import and export, and established sales branches in Bejing, Wuhan, Shenyang, Guangzhou, Hefei, Shanghai, Xi'an, Wuxi, Chengdu, Ji'nan and Zhengzhou those center cities regional. Hence, the marketing network all over the country. Good and standardize sales and after sale service both channels provides a reliable guarantee in marketing development and sales growth in long run.
