Tag Archive for: Custom Gearbox Solutions

Cotta Transmission gearboxes are personally crafted to meet your requirements, and are some of the most reliable, durable, and powerful products available in the industry. Cotta works with each customer to discover their specific needs, uncover the power issue causing problems, and designs the best possible product to overcome the challenges that the application presents.

For example, Cotta designed a top mast drive from the ground up specifically for a customer’s blast hole drilling application. The bearing arrangement on the output shaft was designed to have as much downward force as upward force on the bearings, which is a very desirable feature for a blast hole top mast drive. A typical top head will have the bearing configuration on just one side so that all of the steel can be held up in the air with the appropriate amount of pressure on the bit while drilling. Cotta’s solution was designed with our customer to meet their unique requirements for pushing down or pulling up. The greater down force gives the end user the ability to drill the blast holes faster. Cotta’s custom top mast drive has proven to be a strong and reliable product for the customer for over 30 years.

Blast Hole Drilling Top Mast Drive

Cotta has over 2,000 existing product designs available, and an experienced engineering team that can take any new transmission application from concept to delivery at our production facility in Beloit, WI.

NLB Corporation has been leading the way in water jet productivity since 1971, offering a wide range of high-pressure and UHP water jet pump units, water blasting equipment and accessories.  NLB had been using Horton Clutch prior to switching over to Cotta Transmission almost 20 years ago.  Since switching suppliers, NLB has had great success using Cotta gearboxes on all of their truck mounted systems.

The NLB Starjet is a self-contained system with rotating water jets on a robotic arm that is mounted to the front of a truck.  The Cotta gearbox is being used as a creep drive to give the trucks a controlled and precise travel speed.  The Starjet System is used to remove pavement markings, as well as runway rubber buildup. The travel speed is very important when utilizing high pressure water (40,000 PSI).  If the travel speed is too fast, the required marking will not be 100% removed.  If the travel speed is too slow, the base surface could be damaged. The creep drive that NLB uses has a minimum travel speed of 10 ft/minute to a max speed of 350 ft/minute. The system will hold the set speed whether the equipment is full of water or empty of water, going uphill or downhill.  This precise travel speed allows NLB’s customers to perform flawlessly over the competition that uses other gearboxes.


NLB Corporation is launching their newest model Starjet SRV-7 that also uses a Cotta gearbox.

Learn more:  NLB Corporation


Cotta. High-performance products. Collaborative team of experts. Solving problems and exceeding expectations. A Cotta transmission gearbox – crafted and matched to meet your specific needs – is one of the most reliable, durable, and powerful products available in our industry.  We take great pride and care in designing gearboxes. We work together to discover your specific needs, or uncover the power issues causing problems, and design the best possible high-speed transmission gearbox, speed increaser or reducer, pump drive, or product your situation needs. To learn more, visit…www.cotta.com or call 608-368-5600.


Contact Cotta at sales@cotta.com or call 608-368-5600

A Cotta transmission gearbox that is personally crafted to meet your requirements is one of the most reliable, durable, and powerful products available in our industry.  Cotta takes pride and care in the design, and manufacturing of gearboxes. We work together to discover a customer’s specific needs, or uncover the power causing issues causing problems to design the best product for the customer.

Cotta designs in accordance with AGMS to ensure product quality, and to support out zero-defect policy. We have over 2,000 existing product designs available, plus our experienced engineers and craftsman can take any new transmission application from concept to delivery at our production facility in Beloit, WI.

Cotta combines our prior experience with forward thinking to provide the exact product our customers require. Cotta’s complete product line supports a wide variety of industries and applications, where demanding performance is required under the most extreme working conditions and challenging environments.

Examples of Cotta’s specialized products and services:

  • Reversing transmission gearboxes for rail maintenance vehicles
  • Heavy-duty, high-torque top mast gearboxes, transfer cases, and drives for drill rig vehicles
  • Planetary drives for applications ranging from auger drives to centrifugal separators
  • Turbine reducer/increaser gears up to 5,000 HP
  • Hybrid coaxial transmissions with test heads at both ends of a hollow output shaft
  • Flex drive “add-on” transmissions that multiply the gearbox output speed
  • Compounding gearboxes that combine two or more prime movers into one output
  • Four-Square gearboxes with two transmissions in opposition to increase test torque over input value
  • Design Services, Rotor Dynamic Studies, and other Personalized Analysis and Consulting.

Need Support? Contact a Cota Sales Engineer by calling 608-368-5600 or emailing sales@cotta.com .

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