Crane Undercarriage Parts Manufacture
Professional crane undercarriage parts manufacturer with in-house casting, forging, heat treatment, machining, assembly, and painting workshops. Factory direct with global shipping. Get a quote today!
Manufacture
Casting Workshop
The workshop is also equipped with modern melting equipment and medium-frequency induction furnaces, which enable us to have strict control of the material composition.
We adopt precision aluminum mold casting to ensure that the surface of the crane track plate is smooth, the dimensions are accurate, and the internal grain structure is dense.
Every single step of the casting process is subject to the strict control of standardized procedures, including the temperature of the molten steel and the rate of pouring, which is undertaken by personnel.
Forging Workshop
Large-tonnage die forging equipment and automated heating furnaces are present within the workshop, where high-strength alloy steel from major steel manufacturers such as Baosteel and Laigang is used as the raw material.
The alloy steel is precision-forged at high temperatures using specialized forging dies. This forging densifies the internal grains within the alloy steel, removes defects from the casting process, and greatly improves the fatigue strength and impact toughness of the finished crane undercarriage parts.
Heat Treatment Workshop
Equipped with advanced machinery—including large-scale treatment furnaces, quenching machines, and tempering furnaces—the workshop applies differentiated heat treatment processes to critical components such as crawler track rollers, idlers, sprockets, and track pads.
During the quenching process, heating temperatures, holding times, and cooling medium flow rates are precisely controlled via computer systems.
The tread surfaces and critical contact points of load-bearing parts—such as track rollers, idlers, and sprockets—undergo specialized surface heat treatment, resulting in an improvement of over 30% in wear resistance.
Assembly Workshop
The assembly of roller bodies is conducted entirely within a dust-free environment. Before assembly, operators meticulously clean the interior of each wheel body to ensure it is free of metal shavings and oil residue.
We utilize pure copper alloy bushings, which offer exceptional self-lubricating properties and impact toughness.
Machining Workshop
The workshop is equipped with advanced machines, including CNC vertical lathes, CNC horizontal lathes, machining centers, boring machines, and drilling machines, which constitute several sets of automated production lines.
During the process of machining, we strictly follow the specifications of the OEM blueprints, ensuring that all the dimensions are within the range of tolerance, thus achieving 100% compatibility.
Painting Workshop
Our workshop is equipped with eco-friendly paint booths and automated spraying equipment, which strictly follow the national environmental emission standards, thus promoting a sustainable and green production process. The color of the paint can also be customized based on customer needs.
Quality Inspection
Chemical Composition Analysis
A spectrometer is utilized to analyze the chemical composition of every incoming batch of alloy steel. This process precisely determines the content of elements such as manganese, chromium, and molybdenum. This inspection ensures that the raw materials comply with national standards and OEM design specifications, thereby eliminating—at the source—quality issues such as insufficient strength, poor toughness, or abnormal heat treatment results caused by substandard materials.
Impact Testing
An impact testing machine is employed to simulate the operating conditions in which crawler crane undercarriage parts are subjected to frequent, instantaneous shocks. Crawler Crane Undercarriage parts that successfully pass these impact tests are certified to operate safely in harsh environments, including sandy, muddy, and rugged terrains.
Tensile Testing
Tensile testing is a critical procedure for evaluating the material strength and toughness of crawler crane undercarriage parts, performed using a universal testing machine. This test determines key mechanical properties, such as yield strength and ultimate tensile strength. It effectively prevents material failure caused by insufficient structural strength.
Hardness Testing
Special emphasis is given to the testing of the hardness of key areas, which include the tread, gear, journal, and mating surfaces. The value of hardness directly relates to the wear resistance and fatigue strength of a crane undercarriage part, and this test ensures that the product lies within a particular range of hardness as stipulated in the design specifications, thereby eliminating the possibility of brittle fracture due to high hardness or wear due to low hardness.
Non-Destructive Testing
Magnetic particle testing equipment is used for testing for cracks on the crawler crane undercarriage parts. In contrast, ultrasonic flaw detectors are used for testing for porosity within the material of the undercarriage parts. This ensures that the inner structure of the undercarriage parts is compact, sound, and free from any hidden defects.
Dimensional Inspection
High-precision vernier calipers and Coordinate Measuring Machines (CMMs) are used to carry out detailed inspections of product features, including hole spacing and rim thickness. This ensures that every part of the product exactly corresponds with the original engineering drawings, thereby ensuring 100% interchangeability of the components.
Warehouse & Delivery
Our warehouse facility spans over 7,000 square meters and maintains a comprehensive inventory of crane undercarriage parts, including track rollers, top rollers, idlers, sprockets, track pads, and bushings for major brands such as XCMG, SANY, Liebherr, IHI, and Kobelco
