STS Mixers offer standard features that enhance productivity as well as operator safety and comfort. They include:
  Waist-high bag table
  Vacuum-induced hopper
  Shear Filter Technology
  Patented four-point shearing
  Heavy duty skid frame
  Polyethylene tanks
  Industrial engines and motors
  Cast iron trash pumps
  Large fuel tanks
  Mix & Match options and components
  Full-flow ball valves
  Brass or steel valves (No plastic valves)
  In-field removable and reusable hose clamps
  Groove Loc piping clamps for easy removal (winterizing)
  Mixing tee wash wand
  Top brand name hydraulic hoses and fittings
  Schedule 40 wall steel piping and fittings
  Full drain bottom fitting for tank (owner to install)
  Personal phone support
  Satisfaction guarantee

Through on-going research into efficiencies and function, we have now replaced the standard Monarch TSP® pump with the 80 series Gorman Rupp® pump which has been modified and tuned by STS to produce even greater mixer performance than our previous versions. This modified Gorman Rupp pump is combined with our patented shearing/mixing technology to deliver a noticeable increase in the discharge flows and pressure along with:
Over 200 gpm of fluid (which is 47% more) passing through the nozzle, shear and tank jet guns on the 3” system
Over 330 gpm of fluid (which is 26% more) passing through the muzzle, shear and tank jet guns on the 4” system
Internal wear ring in front of the impeller allowing better handling of abrasion and easily replaced
Grease-type mechanical seal less prone to damage from heat and abrasion
Larger drain and priming ports

Talk to us about how you can retro-fit your existing Surface to Surface mixing unit with this great pump so you get the benefits too. Click here for a printable information sheet about the modified Gorman Rupp® pump.

Along with our standard features, we also offer customization so you get the mixing unit that is the best design for your work environment. Ask us about customization today.


STS offer their product line on a lease basis. You can get the best mixer in the HDD industry on a lease
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