The company manufactures large air preheater end shaft components for boiler plants of major state-owned enterprises across China. These end shafts are made from high-strength alloy materials that exhibit excellent toughness, fatigue resistance, and wear resistance. They can withstand high torque and maintain stable performance over the long term under conditions of high load and high temperature.
Our sprocket products are available in six primary material grades: (YLL01, YLL02A, YLL02B, YLL03B, YLL03C, and YLL07A). All six of these high-alloy, highly wear-resistant materials have been independently developed by our company. Among them, the YLL01 material is the first of its kind to be produced domestically. It is smelted using a vacuum degassing electroslag remelting furnace and undergoes a special forging process as well as a preliminary heat treatment. The tempering process is carried out using specially designed heat treatment equipment to ensure uniform temperature and hardness, with a deep hardening layer. After undergoing our specialized processes, the hardness of the sprocket teeth reaches HRC 57-62, while the hardness of the internal spline bore after assembly is HRC 25-30—achieving the desired hardness profile of soft core and hard outer surface. Customers have reported outstanding performance, and our products have earned an excellent reputation throughout China. Based on different mineral compositions, we select appropriate materials to meet the specific needs of our customers.
Mining products mainly include sprockets, gears, planetary gears, gear shafts, output shafts, toothed rail wheels, sprocket shafts, internal gear rings, support rollers, and hammer heads. The primary steel grades used are: 17CrNiMo6, 18CrNiMo7-6, 20CrNi2MoA, 20Cr2Ni4A, 20CrMnTi, 18Cr2Ni4WA, 40CrNiMoA, and 42CrMo. These materials are produced through fully enclosed vacuum degassing and electroslag remelting processes, employing specialized manufacturing techniques and undergoing extensive forging with a high reduction ratio to achieve optimal material performance standards, thereby meeting the demands of high-end customers.
The main materials used for cutter rings include: YM01, YM02, YM8, YM55, and YM55A. All five of these high-alloy, high-wear-resistant materials have been independently developed by our company. Based on the specific characteristics of various rock types encountered in each project, our company has developed both standard cutter-ring materials and hard-rock cutter-ring materials that feature excellent wear resistance, superior impact performance, and outstanding through-hardening capability. Their hardness can reach HRC58-62, ensuring that the entire roller cutter exhibits strong physical and mechanical properties. The cutter rings are produced using a fully enclosed, gas-protected, automatically controlled electroslag remelting furnace, which significantly reduces non-metallic inclusions, enhances compositional uniformity, and minimizes segregation. For forging, the rings undergo multiple upsetting and drawing processes followed by ring rolling to ensure a high forging ratio and superior internal quality. Our company employs a vacuum heat treatment quenching process, resulting in fine grain structure and uniform hardness. Customers can select cutter-ring materials with different performance characteristics according to the specific geological conditions and application requirements, enabling the cutting tools to deliver their optimal performance. Additionally, we can develop customized, exclusive cutter-ring materials tailored specifically to meet individual customer needs, thereby enhancing their market competitiveness!
The main materials for transmission shafts are two high-alloy materials—40CrNiMoA and LS3—which offer high strength and excellent toughness. They are used in downhole oil extraction applications where they must withstand significant torque and complex stress conditions.
The main grades include: MC3, MC5, MC6, 70CrNiMoV, 70Cr3Mo, 86CrMoV7, 9Cr2Mo, 9Cr3Mo, YM8, 45Cr4NiMoV, 5H12, 5Cr2MoV, GCr15SiMn, and others. Rollers are broadly categorized into three major types: (support rolls, work rolls, and intermediate rolls).
The main grades include: 40SiMnB, 30CrMnTi, 40Mn2, 40Cr, 27SiMn, 20MnVB, 45Mn, 42CrMo, 45#, 40Cr, 42CrMo, JL01, ZJLH, and others. We produce various high-strength die-forged components, and the materials can be specially developed according to customer requirements, ensuring they meet user needs in a wide range of operating environments. Currently, our die-forged components have already replaced imported products.
The main types of die steels include: 5CrNiMo, 5CrNiMoV, 45Cr2NiMoVSi, B2, H11, H13, H23, 4Cr5Mo2V, 5Cr5Mo3V, 1.2367, 8407, DIEVAR, RT519, 55NiCrMoV7, 8418, 17-4PH, M2, LD, DC53, YD1, YD3, YB5A, 1.2343, 1.2344, and others. Our products primarily encompass large-scale hot forging dies, hot extrusion dies, cold forging dies, plastic molds, roll forging dies, die-casting dies, and various medium- and small-sized dies. Utilizing specialized manufacturing processes, these steels exhibit excellent properties such as good hardenability, wear resistance, ductility, toughness, resistance to thermal cracking, thermal wear, and resistance to plastic deformation. They are suitable for medium- and small-sized press forging dies and tools. The company can independently research and develop innovative high-end die steels tailored to customer needs.
The main types of die steels include: 5CrNiMo, 5CrNiMoV, 45Cr2NiMoVSi, B2, H11, H13, H23, 4Cr5Mo2V, 5Cr5Mo3V, 1.2367, 8407, DIEVAR, RT519, 55NiCrMoV7, 8418, 17-4PH, M2, LD, DC53, YD1, YD3, YB5A, 1.2343, 1.2344, and others. Our products primarily encompass large-scale hot forging dies, hot extrusion dies, cold forging dies, plastic molds, roll forging dies, die-casting dies, and various medium- and small-sized dies. Utilizing specialized manufacturing processes, these steels exhibit excellent through-hardening properties, wear resistance, ductility, toughness, as well as resistance to thermal cracking, thermal wear, and plastic deformation. They are particularly suitable for medium- and small-sized press forging dies and tools. Our company can independently research and develop innovative high-end die steels tailored to customer needs.
The blade material uses a special smelting and forging process. The head is made of high-alloy material, which has good wear resistance, impact resistance and high thermal stability. The handle end assembly surface uses low-alloy material with low hardness, solving the problems of poor wear resistance, short service life, broken teeth, and frequent replacement of the original single metal, ensuring the stability of the crusher and improving production efficiency.
Company's patented product, independently developed mine reverse circulation drilling rig connecting rod material grade ZG01, replaces the imported grade 4330V, is made of high-strength alloy steel, and under special quenching process and equipment, has sufficient strength and toughness, high impact energy, good wear resistance, deep permeability, uniform hardness, and can withstand large tensile and torsional forces, preventing breakage or deformation during operation. Its service life is twice that of 4330V material. It is mainly used in coal, mining, drilling, and engineering industries.
Materials mainly include (1Cr17Ni2, KF90, 17-4PH, etc.). Main products are hydraulic support valves and electro-hydraulic valves, etc. The valve bodies are formed by electroslag remelting followed by free forging with a large forging ratio. The forged valve bodies have a dense structure, good mechanical properties, excellent corrosion resistance and oxidation resistance, can withstand the erosion of various corrosive media, are not easy to rust, can withstand high pressure and impact, and can operate stably at high temperatures.
Contact person: Manager Zhang
Postcode: 115200
Fax: 0417-7630288
Mailing address: Shuangquanyan Village, Xihai Subdistrict Office, Gaizhou City
Address: Gaizhou Xihai Industrial Park
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