For over 10 years our company has been focused on research and innovation of HVAF technology. We are an industry leader and the largest supplier of HVAF-based powder spraying systems in the world today.
AC-HVAF Coatings
AC-HVAF can be thought of as a simplified version of conventional HVOF, able to produce same or better coatings while drasticaly reducing the complexity and costs of application. With operating parameters lying in between Cold Spray and HVOF, today's AC-HVAF coatings frequently come out ahead in side-by-side testing by independent institutions and laboratories worldwide. There are several other advantages that make our technology exceptionally competitive in many industries, making it the preferred choice for deployment. Briefly, they are summarized below.
Lower Operating Costs
AC-HVAF does not require either compressed oxygen of HVOF, or expensive gases of Cold Spray. Regular propane or propylene are used in conjunction with compressed air provided by an air compressor (200 CFM, 125 PSI).
Lower Costs of Deployment
The AC-HVAF system is completely self-contained and requires no peripheral equipment such as independent cooling systems or oxygen tanks. All that is needed for operation is compressed air and propane (or other fuel gas).
Higher Deposit Efficiency
AC-HVAF is capable of achieving deposit efficiency of up to 85% for metals, and up to 70% for carbides. Higher D.E. reduces costs as less powder is wasted.
Higher Spray Rates
In some applications it is economically important to be able to cover large areas quickly, and in terms of spray rates AC-HVAF stands in a league of its own. Spray rates of up to 66 pounds per hour for carbides and up to 50 pounds per hour for metals make AC-HVAF an exceptionally efficient process for large scale applications.
No Nozzle Clogging - No Frequent Maintenance - 100% Duty Cycle
Proprietary spray gun design does not suffer from nozzle clogging, nor does it require routine replacement of consumable parts, allowing spray jobs to proceed at a true 100% duty cycle, with no interruptions. Additionally, non-clogging nozzles never suffer from "spitting" of accumulated material onto the sprayed surface, making AC-HVAF the preferred choice for coating extremely large parts, such as paper and film rolls, where having 100% uniform and defect-free coatings is paramount.
AC-HVAF System
The equipment is simple to use and very user friendly. Touch screen interface makes the system easy and intuitive to operate, and intelligent industrial control automatically maintains all operating parameters, instantly shutting the system down if any problems occur.
Our flagship AC-HVAF system is capable of applying all the standard HVOF materials at vastly increased spray rates with equal or greater quality, while drastically reducing operating costs and eliminating most of the maintenance-related downtime of deploying and operating conventional HVOF and HVAF systems. This translates to significant cost savings and higher return margins, particularly in large scale applications. These are some of the reasons AC-HVAF has become the equipment of choice for many industries worldwide, including automotive, aerospace, steel, paper, film production, power generation, oil, coal, and many others. The AC-HVAF system has earned the reputation for outstanding coating quality, simplicity of operation, and exceptional reliability.
What is AC-HVAF in technical terms?
AC-HVAF stands for Activated Combustion High Velocity Air Fuel. In technical definition, HVAF technology is a derivative of HVOF. Instead of using compressed oxygen the system extracts it from air. This eliminates the need for compressed oxygen, reducing costs, and also allows the system to operate at lower temperatures, harnessing all the advantages of solid state particles (same principles are used in Cold Spray). The oxide content is also reduced to Cold Spray level. Activated Combustion is a patented improvement to HVAF process developed by Dr. Baranovski in the 1990's. It opened a second era of HVAF-based equipment, that no longer suffered from poor deposit efficiency of its predecessors. Today, modern AC-HVAF actually outperforms most HVOF and Cold Spray based systems.
