Cnc Milling Alloy Steel Ball Double Helical Customized Hobbing Machining Cement Mill Flywheel Ring Casting Spur Gear

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Cnc Milling Alloy Steel Ball Double Helical Customized Hobbing Machining Cement Mill Flywheel Ring Casting Spur Gear

Cnc Milling Alloy Steel Ball Double Helical Customized Hobbing Machining Cement Mill Flywheel Ring Casting Spur Gear


Our essential equipments: 


Essential EquipmentBrand & Model No.Quantity
CNC Vertical LatheD15160,D15120,D15100,SMVT800X31/50,DVT500X31/328
Heavy Duty Vertical Lathe15110,1580,1563,15406
CNC Hobbing MachineD5316,D5314,D5310,D5308,D5305,D53047
Hobbing Machine5380,5343,5353,ZFWZ50,4
Double Helical Gear Milling MachineDXC12,DXC10,DXC08,DXC066
Floor Mounted Boring and Milling MachineW260,WD250,WD220,265B,TX6213A,26367
Heavy Duty Horizontal LatheW2010, Ø2000*10000mm1
Drilling MachineZ30100, Ø100*3150mm1
Bevel Gear Planing MachineZSTTK, Y2380,F23203
Bridge Cranes100MT,150MT,260MT10
Gantry Crane40MT2






We have the advanced casting equipment, strictly follows the national lever-2 detection standards, and executes 360° all-round nondestructive testing system, to ensure the reliable quality and long service life of large diameter metal ring gears.




Chemical Composition Report, Mechanical Properties Report, UT Report, Heat Treatment Report, Dimensions Check Report

The data on chemical composition report and mechanical properties report are approved by third party

UT test: 100% ultrasonic test according to EN10228-3, SA388, Sep 1921 C/c etc.

Heat Treatment Report: provide original copy of heat treatment curve/time table.


Testing DeviceBrand & Model No.Quantity
Micrometer Tester1.2m, 1.6m, 3m11
Inside Micrometer6m2
Angle GaugeNo information5
Ultrasonic Flaw DetectorCTS-22A1
Hardness TesterMH320, HLN-11A1
Magnetic TesterCJE-12/2201
Roughness TesterTR2001





Packaging Details: Anti-rust surface protection, non-fumigation wooden case OR per customer's requirement 


Delivery Detail: 90-180days according to the order



Production capacity: 


Product NameProduction Line CapacityActual Units Produced   (Previous Year)
Gear and Gear Shaft8000 Tons Per Year6300 Tons
Mining Machinery Parts10000 Tons Per Year7500 Tons
Casting and Forging10000 Tons Per Year9000 Tons



Process&Technology of Steel Castings
ProcessSand Casting
Machiningrough machining, semi-finished machining, finished machining
TestChemical composition, mechanical property, UT,MT
Heat TreatmentNormalized, Normalized and Tempered, Quench and Tempered


Nowadays our products can be found in many places worldwide, like West Europe, South America, Middle East, Australia, Southeast Asia.



Luoyang Zhongding Heavy-Duty Machinery Co., Ltd. is located in Luoyang, the famous heavy industry base in China, is in the field of mines, metallurgy, building materials, nonferrous metals, chemicals, machinery and other industrial customers to provide technical equipment and engineering design of the professional enterprise.


Company was founded in 1991, the total area of 48000 square meters, the existing staff of 255 people, including senior engineering and technical personnel 69 people.


The company has complete testing equipment and testing means, and based on ISO9001: 2000 standard established a perfect quality management system, on the formation of the quality of the products in the whole process control to ensure that the user's quality requirements are fully guaranteed.


Our predominant products: large module girth gear/gear ring, pinion, pinion shaft, rolling ring tyre, end cover, mill head, flange, and other relative products.

0.011 s.