workers on a job site handling stringing equipment

Kansas City, Missouri, May 27, 2020 – Custom Truck One Source (Custom Truck) is pleased to announce the addition of the ZECK brand of bull wheel pullertensioners to their wire stringing equipment fleet.  

ZECK bull wheel puller-tensioners offer customers the strongest and fastest version of their type available on the market today.  ZECK machines have a unique bull wheel design that meets current wire standards including ACSS, Carbon Core, & OPGW. They also offer a fully hydraulic direct drive bull wheel system, negative self-acting hydraulic brakes, integrated hydraulic load sensing dynameters, pre-settable pulling & tensioning power, and radio remote control for touchless operation.   

These unique machines perform several applications for the wire stringing process – Puller, Tensioner, Re-Conductor, and with a light mode for delicate OPGW and Static Wire operations. “ZECK machines are safe, smooth, strong, and fast; features our customers have been asking for,” said Jeff Henes, Director of Pulling and Tensioning Equipment at Custom Truck.  ZECK machines fill those requests for both single conductor and two bundle machines. We are proud to work with both ZECK and Sherman + Reilly to bring our customers the most advanced and safe pulling & tensioning equipment.” 

ZECK machines are brought to the USA through Sherman + Reilly exclusively for Custom Truck to rent or sell. Sherman + Reilly has a long history with ZECK’s technology and operations.  


Custom Truck One Source is the first true single-source provider of specialized truck and heavy equipment solutions. With sales, rentals, aftermarket parts and service, equipment customization, remanufacturing, financing solutions, and asset disposal, our team of experts, vast equipment breadth, and integrated network of locations across North America offer superior service and unmatched efficiency for our customers. Dig in at and keep up with us on Facebook and Twitter. 


ZECK is a 3rd generation, family-owned company with a history of over 100 years in business. The company is a leading manufacturer of high-quality machines and accessories for the Construction/Servicing of Overhead Transmission Lines, Underground Cable Construction, and Rail Technologies. 


Evolving with the utility industry, Sherman + Reilly has been manufacturing equipment and tools for overhead and underground power line installation and maintenance for over 90 years. The Sherman + Reilly brand is focused on safety and customer satisfaction.