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Specializing in Electric Motor, Power Transmission & Pump Repairs

Herold & Mielenz is an innovative electric motor and power transmission sales and service center. We offer the following services to manufacturing companies, the packing industry, agricultural pumps, hospitals, municipalities, water treatment plants and all other industries utilizing electric motors. We service from the Central Valley throughout Northern California.

We stock vertical Hollow Shaft Pump, Compressor Duty, Brake, Washdown Duty, HVAC Fan and Blower, Pool and Spa, IEEE841, Crusher Duty, Stainless Steel, Inverter Duty, TEFC, ODP, Gear Motor, Grinder, Woodworking, Pressure Washer, Close-Coupled Pump, Explosion-Proof, Jet Pump, Farm Duty, and Servo Motor in Single Phase, Three Phase, and DC.

We repair and rewind all sizes and types of electric motors, always following the best practices of the Electrical Apparatus Service Association, Inc. (EASA) to maintain reliability and efficiency at, or above, the original manufacturer’s specifications. We have in-house Vacuum Pressure Impregnation (VPI) tanks, a Harmonic Balancing Machine as well as Machine Work equipment and so much more.

We have the best pumps at the best price, including submersible, centrifugal, booster, vertical turbine, multi-stage, as well as hot water circulating pumps. We also stock industrial water, sewer, and wastewater pumps. Our vendors include the most respected names in the business, such as Bell & Gosset, Goulds Pumps, Little Giant, and Sta-Rite.

Herold & Mielenz, Inc. is Northern California’s Controls and Automation supply specialists. We stock a vast inventory that includes push-button controls, electronic soft starters, AC and DC contactors and overloads, both open and closed.

We stock helical, parallel shaft, right angle, and cycloidal gearboxes in a variety of materials, including cast iron, aluminum, and stainless steel. We also offer units that are suitable for washdown environments. Our vendors include such respected names as Baldor, Grove, Hub City, Lesson, Nord, and Sterling Electric.

At Herold & Mielenz, we stock AC inverter drives, vector drives, SCR drives, DC drives, as well as AC and DC servo controls from the top names in the business, including Baldor, Delta, WEG, Yaskawa, AC Tech, KB Electronics, Nord, Regal-Beloit, Saftronics, Bardac, Leeson, and AO Smith.

Equipment downtime and poor reliability can severely affect production and your company’s bottom line. Herold & Mielenz takes great care in providing dynamic balancing services that improve the availability and reliability of your critical rotating machinery.

Hardfacing is a low-cost method of depositing wear resistant surfaces on metal components to extend service life. Although the process is used primarily to restore worn parts to usable condition, hard facing can also be applied to new components before being placed into service to extend their serviceable life.

For more information about our services, or to speak with one of our experts, please call Herold & Mielenz at 916-422-7493.

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Monday – Friday: 7 AM – 4 PM



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