Flux Recovery System

Flux Recovery System

In submerged arc welding, Unikraft Flux Recovery Systems have proven themselves as the most valuable accessory, in fact almost essential accessory to the entire sub-arc process. The key word is economy. They save valuable flux, help make better welds and produce all-important saving in man hours. Flux recovery Systems not only make for a neater shop and better working conditions but they also keep abrasive flux away from moving parts on the welding rig. Finally, these systems are capable of separating out slag (fused flux) and fines (flux flower) returning only the clean reusable flux to the hopper. The Unikraft Flux Recovery Units have two ranges, either using compressed air or using electric motor. The electrical models can either be fixed or portable units, while the compressed air model will be of fixed type.

1) Lightweight Units :

The Unikraft, Model ULAP-15 FR comes as an integral unit, comprising of a Flux hopper with 7 liters of fresh flux capacity. It is light, compact, simple in operation and powerful enough to do an excellent recovery job. The recovered flux is collected in an upper chamber placed on top of the hopper. The filtering mesh automatically filters the slag material & allows the usable flux to the lower level hopper.The fines are carried away with the air & are trapped in the filter bag. The Unikraft Lightweight series is designed for intermittent duty with good recovery rates when used with compressed air at minimum 4 bar pressure.


Input power: compressed air @ 5 – 6 bar, approximately 10 cfm to 12 cfm (1/4” I.D. Air line minimum). No electrical input required. Weight (empty): APPROX. 10 to 12 kg Dimensions: 500 mm H x 250 mm W x 200 mm D System comes complete with 2 meter. hose, flux hopper,mounting brackets, sight window for hopper, and flux pick-up nozzle. Optional: The outlet valve of the Flux hopper can be fitted with a pneumatically operated pinch cock, for remote opening & closing of the flux outlet.

2) Heavyweight Units :

Unikraft Heavyweight Flux Units are the unit for large flux recovery operations. Models start at 1.5 HP and go up to 7.5 HP, and are designed to run 24/7. The Heavyweight series come in several variations that are specifically designed to meet your recovery needs. The Heavyweight units can handle the largest of jobs. We offer both portable and fixed (stationary) units.


Vacuum (mmWg)

Air Displacement (m3/hr)

Motor Capacity (HP)

Capacity (ltrs.)

UH-15 FR





UH-33 FR





UH-55 FR





UH-55 FR





UH-675 FR





Recovery Tools & Hoses :

Unikraft offers a complete line of flux recovery hose and tools to meet your application's need. Our heavy duty hose and tools are built to last, and are built to withstand the abrasive characteristics & high temperature of flux / slag.

Salient Features :

  • Choice of Power - electric or comp.air operated – Choice of capacities that can meet all your flux recovery needs.
  • Dust and fines are collected in a bag for easy cleaning.
  • Saves time and money.
  • Recovers all unused flux.
  • Greatly reduces clean up time.
  • Easy to use and maintain.