Utility Trailer and Cargobull North America the Technology & Maintenance Council Annual Meeting in Nashville Tuesday announced enhancements to their ultra-low emission transport refrigeration units (TRUs): a newly designed TRU with micro-channel condenser and the introduction of the Load-Dividing Bulkhead as a new option.
The micro-channel condenser, which will become a standard feature, is designed to enhance efficiency, increase output, and boost overall performance of the 625 and 655MT Hybrid TRUs, which already meet 2030 emissions standards.
Featuring a more compact design, the micro-channel condenser is easier to integrate into the TRUs, according to Andreas Schmitz, president and CEO of Schmitz Cargobull. it also allows for improved airflow, improves heat transfer and increases an already-high cooling capacity. With the Cargobull variable-speed engine control, the TRU maintains optimal thermal performance, and "by reducing the refrigerant charge by 3 pounds, we enhance sustainability and lower both upfront and replacement costs," Schmitz added.
The Cargobull 625 and 655MT TRUs are both California Air Resources Board-certified as ULETRU (ultra-low-emissions TRU) Evergreen units. Featuring additional hybrid shore power as a standard feature, these TRUs are exclusively available on Utility Trailer 3000R reefers.
New load-dividing bulkhead
The latest option for Utility’s 3000R multi-temp reefer is a new Cargobull Load-Dividing Bulkhead.
Jeff Bennett, president CEO of Utility Trailer Manufacturing, said the moveable, track-mounted bulkhead enhances energy efficiency and allows flexible temperature management by enabling different compartments with varying temperatures and volume capacities. It forms an airtight seal, preserving optimal temperatures within compartments, significantly reducing air flow and thermal transfer between compartments and optimizing thermal efficiency for partial loads.
Schmitz said the partition wall is designed to be strong and eliminate the need for a mattress partition. "It is easy to operate, with no shrinking during up and down movement," he said, adding the wall features automatic pressure equalization through the retraction of side and bottom seals when opening and is operated by a central locking lever.
Additionally, it includes an angle-dependent brake for one-hand operation and automatically locks in the parking position, whether the wall is in the upper or lower position.
