DSTI - Dynamic Sealing Technologies
Andover, MN 55304
DSTI Designs Coolant Solution for Leading Steel Recycler
MINNEAPOLIS, Minn. - A world leading steel recycler relied on DSTI's engineering team to design a coolant transfer solution needed for a ladle furnace turret system. DSTI was challenged with designing a large, rugged 10 passage rotary union that integrated into an existing rotary table to rotate an up to 300 ton pouring ladle. The solution provided a reliable and maintenance-free cooling system...
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DSTI Provides Solution For Oil Drill Pipe Lifting Equipment
MINNEAPOLIS, Minn. - DSTI's engineers teamed up with one of the largest oilfield services companies to design an outside the box lift solution for an automated oil drill pipe handling system. The lifting system's primary goal is to provide safe, consistent transportation of drill pipes by automating the clamping operations. Faced with challenge of designing a rotary union capable of bearing a...
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DSTI Designs Rotary Union for Military Training Flight Simulation
MINNEAPOLIS, Minn. - DSTI has partnered with a leading aerospace manufacturer to develop a rotary union solution for a highly advanced, multi-axis flight simulator. The system is designed for testing spatial disorientation, a condition where the pilot is unable to correctly interpret aircraft attitude or airspeed due to visual or motion-related effects on their senses. This Disorientation...
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Specialized Rotary Unions for Oil & Gas Applications
MINNEAPOLIS, Minn. - DSTI introduced its latest high pressure rotary union designed for a surface mining and drilling equipment application. The 2 passage rotary union features a carbon steel construction, special coating process to enhance shaft sealing surface and heavy duty seals for high pressure service. It was designed as a replacement for the existing OEM design, this DSTI rotary union...
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Rotary Unions offer 3 or 6 flow passages.
Available with flow passage options ranging from -¾-1 -½ in., HVH Series features heavy-duty alloy steel construction with corrosion-resistant Nitride surface treatment and protected ball bearing design suitable for harsh/outdoor environments. Units have max pressure rating of 5,000 psi and are available with electrical slip ring options for power or data transfer.
Read More »Specialized Rotary Unions suit plastic molding applications.
Accommodating needs of plastic injection molding application, 14-passage fluid rotary union is optimized for water and high-pressure hydraulic oil service. Features include stainless and carbon steel design, load bearing capability, and electrical slip ring for data transfer. While applied shaft coating process that enhances seal performance and service life is standard, options include...
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DSTI Provides Custom Swivel Joint for Offshore Use
The custom swivel joint as shown is designed for underwater service. The design features all 304 stainless steel construction, including completely sealed ball bearings. The seals in this unit are rated for service pressures of up to 7500 psi, other designs are available for operating pressures up to 25,000 psi. DSTI can help with many demanding rotary union applications, please contact them to...
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Custom Rotary Unions
DSTI offers complete custom rotary union design and manufacturing services. Custom rotary union assemblies can be designed for a variety of applications; from miniature unions for the semiconductor industry to large heavy-duty designs for industrial applications. Numerous material, seal, and bearing types can be utilized, depending on application requirements. Custom RotaRing(TM) rotary...
Read More »Product Family Introduction: LT Series Rotary Unions
The LT Series rotary unions are small, lightweight rotary unions available in 2, 4, 8 and 12 passage versions. The LT Series rotary unions feature all-aluminum construction and low-torque seals that are suitable for pressure or vacuum use. The LT Series rotary unions can also be ordered as RotaRing(TM) rotary union/electrical slip ring combination assemblies. Many electrical slip ring...
Read More »Product Family Introduction: SE Series Rotary Unions
The SE Series rotary unions are designed for applications with high pressure requirements and limited space. All SE series rotary unions offer SAE-4 and o-ring flange connections. Originally designed for machine tool workholding applications, these versatile rotary unions are currently used in a number of industries. The SE Series rotary unions are available in 2, 4, 6, 8 and 12 passage versions....
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