MAC Trailer - Truck Equipment Atlas

MAC Trailer is an American manufacturer of specialized semi-trailers and dump truck bodies. Its equipment serves construction, aggregate hauling, open-deck freight, dry bulk transportation, waste handling, and liquid transportation.

Headquartered in Alliance, Ohio, MAC Trailer supports customers through manufacturing operations, dealers, service facilities, and aftermarket parts resources. This page brings together its history, equipment categories, company information, and product profiles published on Truck Equipment Atlas.

History and Background

MAC Trailer’s origins date to the early 1990s, when Michael A. Conny began repairing trailers in a one-bay garage. The company’s overview identifies 1992 as its founding year, while its history timeline identifies 1994 as the year Conny produced his first MAC dump trailer.

The company expanded beyond dump trailers as customer requirements broadened. Its development milestones include an aluminum tipper transfer trailer in 2002, a moving-floor waste trailer in 2004, and entry into dry bulk tank manufacturing in 2009.

MAC Liquid Tank Trailer launched in Kent, Ohio, in 2011. The liquid tank business later expanded into additional manufacturing locations.

Growth also included the acquisition of Trailstar International in 2013, Beall Manufacturing in 2021, and Bullet Manufacturing in 2022. These additions broadened the group’s equipment offerings and geographic reach.

What MAC Trailer Manufactures

MAC Trailer manufactures equipment for several distinct transportation markets. Its principal product categories include:

Dump trailers: Smoothside, sheet-and-post, half-round, steel, and bottom-dump configurations.
Platform trailers: Flatbed, drop-deck, and low-profile equipment for open-deck freight.
Pneumatic tank trailers: Dry bulk transportation equipment in different capacity and operating configurations.
Transfer and waste trailers: Moving-floor and tipper equipment for compatible waste and bulk materials.
Liquid tank trailers: Equipment for petroleum, chemical, fertilizer, food-grade, sanitary, and hot-product applications, depending on specification.
Dump truck bodies: Aluminum and steel body configurations for compatible vocational trucks.

MAC Products on Truck Equipment Atlas

Explore the MAC product profiles below for equipment characteristics, applications, configurations, and ownership considerations. Additional profiles will be linked here as they are published.

These profiles may cover multiple models and model years. Confirm current availability, capacity ratings, materials, and options for the specific trailer being considered.

Dump Trailers

MAC Half Round Dump Trailer — Explore a rounded-body dump trailer platform for aggregate, construction materials, and compatible bulk hauling.

Flatbed and Step Deck Trailers

MAC Aluminum Flatbed — Explore an aluminum platform for lumber, steel, pipe, machinery, and general open-deck freight.
MAC Step Deck — Explore a platform with a lower main deck for taller freight and compatible equipment.

Liquid Tank Trailers

MAC Tank Trailer — Explore liquid transportation equipment and the relationship between tank configuration, construction materials, and cargo compatibility.

Technology and Product Development

MAC Trailer operates a dedicated research and development facility in Alliance, Ohio. Its capabilities include prototype trailer construction, component development, structural analysis, and manufacturing process development.

Engineering work includes finite element analysis to evaluate structural designs. Manufacturing development also incorporates robotics and fabrication techniques.

Testing capabilities include simulated road fatigue, platform loading, tank pressure and vacuum cycling, securement-device pull testing, and small-scale aerodynamic testing. These methods address different demands across the company’s trailer families.

Features and construction methods vary by product. The individual equipment profiles provide an introduction, while manufacturer documentation supplies the ratings and operating procedures for a particular trailer.

Company and Location Information

Brand: MAC Trailer.
Company group: MAC Trailer Enterprises.
Founder: Michael A. Conny.
Business origins: Early 1990s.
First MAC dump trailer: 1994, according to the company history timeline.
Country of origin: United States.
Headquarters: Alliance, Ohio.
Corporate address: 14599 Commerce Street NE, Alliance, Ohio 44601.
Manufacturing footprint: Ohio, Michigan, Texas, Oklahoma, Montana, and Oregon.
Official website: MAC Trailer.

MAC provides dealer, parts, service, warranty, and technical literature resources. Consult the official manufacturer website for current locations and support information.

Related Brands and Equipment

Explore these equipment profiles for additional dump trailer, platform, and liquid tank comparison resources.