HST hydrostatic spindles offer sub-micron run-out at 140,000 RPMs. They are extremely stiff and can absorb higher shock loads without bearing damage than conventional rolling element spindles. The fluid bearings offer orders of magnitude increase in operational live over conventional spindles. All of this adds up to better product dimensions, higher production rate and a fast return on investment. Send us a sample of your product and we'll show you what we can do.
HST Ultra-G hydrostatic grinding spindles effectively combine extremely high rotational accuracy with exceptional vibration resistance, providing great static stiffness and a virtually infinite life span. Developed by Dr. Leonid Kashchenevsky, these hydrostatic precision grinding spindles have been effectively utilized in many applications, including:
Increased Productivity & Smoothness
Hydrostatic spindles are effective for high-precision grinding applications. But they can also substantially increase productivity in more standard grinding operations because of their high speed grinding capabilities. Higher grinding speeds allow faster feed rates. Spindle stiffness and vibration-resistance allow for faster grinding speeds, quicker "spark-out" times and eliminate grinding "chatter". Hydrostatic spindles are also able to grind parts to an extremely fine surface finish due to their high operational accuracy, rotational repeatability and vibration-free rotation.
When grinding hardened steel, our Ultra-G spindles have produced extremely low surface roughness, better than 8 nanometers Ra, which can be achieved in relatively short time depending on the size of the part being ground. When grinding mirrors and other optical components, a surface roughness with Ra measurement about approximate 1 nanometer has been achieved.
Proven Capabilities
All HST hydrostatic work head spindles and our hydrostatic grinding spindles have proven accuracy and superior technical capabilities. Please select your desired spindle product for technical data and dynamic response charts:
Our product’s benefits generate significant improvement in productivity for mass-production applications, because both grinding accuracy and grinding speed are improved simultaneously.
Designed for Precision
Our Ultra-G hydrostatic spindles can be custom engineered to meet your exact needs and equipment specifications, providing our customers with parts that offer better accuracy and faster speeds. These ultra-high-speed, ultra-high accuracy grinding, milling and turning spindles can be fitted to a variety of machinery, including:
Designed for Long Life
When compared with rolling element spindles our Ultra-G hydrostatic spindles can withstand substantially higher loads and impacts without deleterious effects. Grinding spindles live a very tough life and usually a relatively short life. Hydrostatic spindles offer life expectancy orders of magnitude over conventional bearing spindles. They are tough. As such you can realize a rapid return on investment.
Should you need repair you can count on HST for all of your spindle repair requirements.
Clean
Dr. Kashchenevsky has dedicated his life’s work to perfecting hydrostatic spindle operation. To that end our Ultra-G hydrostatic spindles do not leak and in fact, if you visit our test laboratory you will not even smell hydraulic fluid. The seals and scavenge systems have been perfected over many years of testing and actual applications.
Try Us Out
Call us to discuss how our Ultra-G spindles can help increase your production, quality and bottom line.