Tag Archive for: Reduction Gearbox

Cotta manufactured this gearbox for a customer’s booster for a dredge pump. In this application, when transferring the gravel/water mix long distances, the booster pumps are used to keep pushing the mix along through the line.  The customer purchased an additional gearbox as a spare, as they have been extremely happy with one that they have had in operation for over 30 years.

See Specifications Below:

  • Ratio:  3:1
  • Rotation:  Engine
  • Max Torque:  2600 FT-LB
  • Max Speed:  2400 RPM
  • Approximate Weight:  1700 LB

Learn More: Cotta Speed Reducers

Speed Reducer

Cotta’s long tradition of manufacturing the highest quality gearboxes, American-made for more than a century, is exemplified in an extensive line of speed reducers.  Cotta recently manufactured a reduction unit for a customer that was in need of a gearbox for a pumping application.  It was imperative that the gearbox be reliable and durable, like all Cotta products, as the unit is being used in a backup pump for fresh water supply for a major US City.

Specifications Below:

  • Ratio:  2.0 to 1 Engine Rotation
  • Max Input Torque:  5000 Ft-Lb
  • Max Input Speed:  2300 RPM
  • Max Power:  2000 HP
  • Approximate Weight:  2100 lbs

Typical uses for Cotta speed reducers include pumps, dredges, compressors, crushers, drills, and high-performance machinery for oil & gas, construction, mining and other industrial applications.

Learn more: Cotta Speed Reducers

Centrifugal pumps are most commonly used for pumping low viscosity fluids, such as water, solvents, oils, acids, organics etc.  Cotta’s engineering team designed and manufactured this reduction gearbox that will be used in a large centrifugal pump. First-piece inspection was conducted on every machining sequence, starting at the source to support our zero-defect policy.  After assembly, and testing of the gearbox in Cotta’s state-of-the-art testing facility, the unit was painted in Cotta’s inhouse paint booth, packed, then shipped out to the customer.

See Gearbox Specifications Below:

Ratio:  1.59 to 1

Engine Rotation

Max Input RPM:  2200

Max Input Torque:  2600 FT-LB

Approximate Weight;  1350 LB

Cotta’s team works with customers to design the best possible gearbox that your product or situation requires.  Contact Cotta to discuss your application’s needs. See links below:

Speed Reducers


Application Design Data Interactive Form