Precision machining services｜CNC Vertical Machining

In addition to sand casting lines, WKM is also a precision machining supplier. We strategically acquires and operates small- to mid-size industrial equipment, serving as OEMs and tier-1 suppliers in the following markets: Automotive, Construction, Green Power, and Agriculture, Hydraulics, Aerospace etc..

Our CNC lathe and milling machines have vertical and horizontal capabilities, facilitating the development and production of a wide variety of complex precision-machined parts. Some of our milling machines with two pallet shuttle systems, parts can be machined on one pallet while loading parts on the other pallet, thus reducing production time. In addition, the machines are outfitted with 4 and 4.5-axis rotary tables and dedicated fixtures, this results in a significant reduction in variation in production runs, improved quality, and reduced costs. Our in-house CNC milling equipment can handle parts up to 31 inches in cube. We are specilized in supply of precision machined products,like Flywheel Housing, Manifold, Wind Turbine Brake,Differential Case, Shaft, Yoke, etc..

WKM’s foundry supplies quality castings available in all grades of Grey iron, Ductile (nodular) iron, High Si-Mo Ductile iron, Austempered Ductile Iron, Iron Casting, and some other customized specification bellow:
Normal standard of tensile strength but with higher elongation.
Better impact value at low-temperature.
Development of Low-temperature impact material for -20℃ is completed. New project is focusing on -40℃ and -60℃.
Annealed structure with high % of Ferrite.
High % of Nodularity.

Nodular graphite cast iron has a large elongation with ultimate tensile strength. Additional characteristics such as corrosion resistance and resistance to thermal shocks and abrasion resistance can be optional by further alloying treatment.
Nodular graphite is present in globular structure. This structure is decisive for the large elongation and the ultimate tensile strength of the material.
Hi Si-Mo cast iron, By increasing the silicon and molybdenum content of ductile cast iron, the heat resistance and strength at high temperatures is increased. The main application for Si-Mo is in automotive exhaust manifold and turbocharger systems, but it is suitable for any high temperature application where both strength and ductility are required. These cast irons are usually 10-15% pearlitic and contain intercellular molybdenum carbides.
Grey cast iron has a high wear resistance with good absorption characteristics in relation to mechanical vibration. Grey cast iron is easy to be machined and casted.
These characteristics grow grey cast iron to one of the most economical cast materials at all. Therefore grey cast iron belongs to the widely-used cast iron today.
ADI cast iron (Austempered Ductile Iron) with a bainitic structure, featured by a very favorable combination of tensile strength and elongation, has a very good abrasion resistance. On the basis of nodular cast iron, an isothermal treatment were applied, and a definite micro-structural transformation is reached. We are capable of producing ADI components for mining industry and some special application.