Five Pass Cooling Tunnel

The five pass cooling tunnel consists of a stainless steel frame, insulated latching doors, a 5-tier modular plastic belt with each tier having an independent conveyor system with dedicated gearmotor, and a return air plenum parallel with the conveyor tiers. At each tier transition a combination turnaround/sifter will separate and collect any sanding sugar that becomes dislodged from the gummy pieces.


  • 304 SS construction
  • #4 finish and continuous sanitary welding throughout
  • Insulated doors and sides
  • Cold air diffuser at top of tunnel with separate return air plenum on side
  • Intralox belting with UHMW carryway, NORD gearmotors

Spec Engineering is a Gray company.

Spec is a process engineering company, focused on best-in-class solutions for customers in the food, grain, minerals, chemicals, and pharma industries. In 2019, Spec became part of the Gray family of brands. As a Gray company, we continue to offer comprehensive expertise, catered to your scope, schedule, and budget.