case studies

Aggregate Industry

OEM of conveying and crushing equipment for quarries. Details of original drive: Had Dodge products exclusively. The customer placed a bucket beneath to catch the oil coming out of the gearbox and knew it was running when they saw them wobble on the shaft. Details of Dorris replacement drive: Dorris TRC. The OEM is supplying a superior package to the customer and simplifying installation. How has... Read More

L. A. Cathedral: Automated Doors

Details of equipment: Sculpted cathedral doors weighing 20,000 lbs., 120,000 in/lbs. Spec life is 500 years. Details of original drive: New project. 2 hp input, 1.9 rpm final output. Direct Drive. Details of Dorris replacement drive: 407TRC40 with worm input (3) 215TRC40 with worm input (2) How has... Read More

Cattle Ranch

Details of equipment: Solar-powered water pumping unit. Details of original drive: 0.75 HP or less direct current motor with a v-belt drive to the reducer. Details of Dorris replacement drive: 1236 RH-DO base mount unit with 16 inch overall output shaft length. How has the Dorris drive simplified, condensed, etc. the customer’s overall drive package? Availability of special double-extended output shaft simplified the customer’s... Read More

Food Processing Solutions

Details of equipment: Spiral steam cooker. Details of original drive: High torque required. 1 RPM output. 100,000 in lbs. Hydraulic motor driven, hydraulic driven 3 – 4 HP Details of Dorris replacement drive: 415TR250 4/0 How has the Dorris drive performed, enhanced, simplified, condensed, etc... Read More

Grain Elevator

Details of equipment: Bucket Elevator : 200 HP; 26,000 Bu./Hr.; 213’ high. Details of original drive: Right angle helical bevel – hollow shaft. 200 HP; 30:1 Details of Dorris replacement drive: 608 Scoop Mount; 200 HP. Direct couple. Concern about overhung load led to spring-supported scoop mount for load and "wobble" allowance. How has... Read More

Grain Handling

Details of equipment: 24" dia. screw conveyor x 40 feet, inclined 45 degrees. Screw transports corn cob from truck dumping station to processing. Screw simply lays in trough (no hanger bearings) and drive is in below ground pit, making it difficult to access. Duty cycle: September thru Mid-November, 24 hrs daily/7 days per week Mid-November thru February, 16 hrs daily/5 days per week Details of original drive: Falk... Read More

Man Lift

Details of equipment: Personnel lifts for a riveting application of some aircraft parts. Details of original drive: Screw jacks were originally requested, but supplied the wrong speed for the lift. Details of Dorris replacement drive: Due to the maximum input speed of a worm gear screw jack being 1800 rpm, we requested a special ratio from Dorris in a 203TL which would support... Read More

Manufacturing

Details of equipment: Conveyor Details of original drive: 1940’s era gearbox Details of Dorris replacement drive: Base mount, 1229 DI-DO How has the Dorris drive performed, enhanced, simplified, condensed, etc. the customer’s overall drive package? Drive has... Read More

Recycling Conveyors

Details of equipment: Several types of conveyors for the recycling industry: Chain belt, Sorting belts, and Slider belts Details of original drive: The original gear drive used was the Shinko worm gear reducer in 40:1 ratios. Details of Dorris replacement drive: By changing to the Dorris in 40:1 ratios they were able to use the same ratios... Read More

Recycling Garbage

Details of equipment: Shredder machine Details of original drive: Dodge TCM 800, 10 hp belt drive. Drive was failing early. Details of Dorris replacement drive: We used a 99150 overrated with 30hp. 10hp was failing. 105:1 ratio. Chain drive on output shaft to shredder. How has the Dorris drive performed, enhanced, simplified, condensed, etc... Read More

Rice Mill

Details of equipment: Screw conveyors, mixer and bucket elevators, and belt conveyor piggy back rice hull dryers Details of original drive: Dodge only for 32 years. Details of Dorris replacement drive: New TRCs and TLCs. How has the Dorris drive performed, enhanced, simplified, condensed, etc... Read More

Textile Loom

Details of equipment: Our unit is used on a very large corduroy loom for the textile industry. Details of original drive: Falk shaft mount. Details of Dorris replacement drive: 207TR10 with taps on both sides. How has the Dorris drive performed, enhanced, simplified, condensed, etc. the customer’s overall drive package? The Dorris... Read More

Waste Water Treatment

Details of equipment: Vertical mixer drive Details of original drive: Eurodrive type vertical gearmotor with solid output shaft using rigid coupling to interface the drive to the mixer’s impeller shaft. Assorted sizes ranging from 5 HP through 25 HP motors, all with 25:1 ratio gearing and Class II Service Factor. Details of Dorris replacement drive: Modified... Read More

Wood Chip Production

Details of equipment: Conveyors, log positioners, cranes, etc. Details of original drive: Customer was historically using Fairfield reducers. Details of Dorris replacement drive: Standard shaft mount reducers. How has the Dorris drive performed, enhanced, simplified, condensed, etc. the customer’s overall drive package? Dorris has... Read More
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