CB-2400E and CB-1200E
  • Customer: Manufacturer and distributor of fire protection equipment

  • Item to Clean: Fire sprinkler concealment cover plate assembly (various sizes)

  • Contamination: Water-soluble solder flux

  • Cleanliness Required: Visually clean

  • Dryness Required: 100% dry

  • Production Rate: 2400 parts per hour (4-lane washer), 1200 parts per hour (2-lane washer)

  • Process Parameters: Wash, ambient blow-off

  • Machine Type: Aquamaster CB-2400E and Aquamaster CB-1200E (Conveyorized Belt)

Customer Background

The customer is a global manufacturer and distributor of fire protection products, including fire sprinkler systems.


The customer needed a system to clean water-soluble solder flux from various sizes of concealment covers used for an automatic fire sprinkler system. These covers are metal with a coated outer surface designed to conceal a fire sprinkler in a ceiling or wall. The covers are heat-sensitive by design, allowing the cap to separate from the base in the event of a fire. Therefore, the cleaning system could not exceed 110 degrees Fahrenheit while still washing and drying the parts.

Inside CB-2400E and CB-1200E


Two Alliance conveyorized belt cleaning systems were engineered to meet the high production rate of the sprinkler concealment covers. The CB-2400E has four lanes, and the CB-1200E has two lanes. The parts are separated by lane guides and are designed to increase the capacity of the cleaning system. Inside the machines, hold-down devices keep the lightweight parts on the belt surface and contained within their respective conveyor lane. The hold-downs can be adjusted to accommodate varying part heights, and a UHMW strip prevents scratching of the part surface. These machines utilize special stainless steel rod-style belts for increased spraying and drying coverage. Three mist collectors on the four-lane system and two mist collectors on the two-lane system are included for removing steam from the washers. Both machines also include micro-filtration chambers and belt-type oil skimmers to prolong the life of the cleaning solution.

two mist collectors on the two-lane system
Aquamaster CB 1200E