First distinguish self-aspirating, forced-air, combined-circuit, column, REFLUX and coarse-particle designs. Then identify the appropriate wet-end wear parts, drive spares, materials and drawing for quotation.
FLS flotation products include fundamentally different designs. This page covers current series, published size ranges, core wet-end and drive parts, material selection, drawing checks and quotation requirements, with the applicability of each part stated.
Published dimensions identify the product range only. Actual spares require the full series, cell volume, serial number, drawing, P&ID, general arrangement and current drawing revision.
| Series / Model | Design | Published Range | Key Spare-Part Identification Areas |
|---|---|---|---|
| WEMCO II | Self-aspirating mechanical flotation | WEMCO II square cells, WEMCO II RT round cells, WEMCO II Inert Gas | Rotors, dispersers, disperser hoods, false bottoms, draft tubes/standpipes and drive assemblies; verify all three designs separately against installation records. |
| nextSTEP | Forced-air mechanical flotation | Rectangular-cell effective volume 1.7–2.8 m³; round-cell effective volume 5–600 m³ | nextSTEP rotors/stators, stator base plates, rotor drive shafts, BHSA, pulleys, froth and level-control parts |
| mixedROW | Combined nextSTEP and WEMCO circuit | For cells of 5–660 m³ | Two mechanical designs coexist in one row; distinguish WEMCO and nextSTEP wet ends by the specific cell position. |
| FLS Column | Column flotation | Cross-sectional area 0.79–28.27 m²; operating volume 2.5–472.5 m³ | External Venturi aeration, recirculation pumps, injectors, tanks and froth launders; no mechanical rotor/stator. |
| RFC300 / RFC500 | REFLUX Flotation Cell | Diameter 300 / 500 mm; total feed slurry 5–13 / 14–35 m³/h | Pre-contact aerators, inclined channels, fluidisation water, pressure chambers and valves; WEMCO/nextSTEP parts do not apply. |
| RFC Series | REFLUX Flotation Cell | The published selector lists RFC300, 500, 850, 1400, 1750, 2000, 2350, 2750, 3000 and 3600. | Confirm project dimensions, flow rates and spares by full model, serial number, P&ID and drawing revision. |
| coarseAIR | Coarse-particle flotation | cA-100 (test scale); cA-850 (industrial scale), published diameters 100 / 850 mm | No conventional internal mechanical rotor; spares focus on aeration, piping, valves, tanks and module interfaces. |
The numbers on the diagram correspond one to one with the rows below.
| No. | Component | Location | Applies to |
|---|---|---|---|
| 1 | Shaft | Central vertical shaft in the cell | nextSTEP forced-air flotation |
| 2 | Rotor | Lower end of the shaft | nextSTEP forced-air flotation |
| 3 | Stator | Around the rotor | nextSTEP forced-air flotation |
Names alone do not establish interchangeability of rotors, dispersers/stators, hoods, false bottoms, draft tubes or valves. Each card states the applicable design before linking to component and material pages.
Rotor / Impeller
WEMCO II self-aspirating and nextSTEP forced-air rotors are core wet-end parts but differ in height, air path, profile and mating parts; they are not interchangeable. Check series, volume, rotation, diameter, holes, shaft connection and actual wear profile.
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Stator / Disperser
nextSTEP uses a matched stator; WEMCO II uses a disperser. Their functions, designs and positions differ. Check series, volume, blade/window profiles, base holes, clearances, rotation and rotor pairing references.
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Disperser Hood / Rotor Cover
Primarily for WEMCO self-aspirating designs, forming air/slurry circulation paths and protecting the wet end. Check WEMCO generation, volume, hood profile, windows, flanges, supports and disperser/rotor clearances.
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False Bottom Liner / False Floor
Primarily for WEMCO self-aspirating cells, directing bottom slurry recirculation and protecting the floor. Check tank form, segmentation, thickness, holes, overlaps, flow boundaries and draft-tube clearances.
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Draft Tube / Standpipe Liner
Primarily for WEMCO self-aspirating designs, linking the false-bottom area to the upper rotor circulation path. Check diameter, length, flanges, supports, lining thickness, concentricity, rotor clearance and tank interfaces.
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Cell / Tank Liner
Protect mechanical cells, flotation columns or local high-wear areas. Check series, tank shape, installation zone, segmentation, thickness, holes, seams, access doors and clearances to internals.
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Discharge / Dart Valve Wet-end Liner
Protect slurry-contact surfaces of inter-cell discharge, level-control or underflow valves. Check valve type, cell position, bore, stroke, sealing surfaces, guides, actuator interfaces and flow direction.
View the Component Page →Drive and load-bearing parts require checks of interface accuracy, rotation, speed, air passages, bearings and seals together with the corresponding mechanical design and cell volume.
Rotor Drive Shaft and Sleeve
Transmit torque from the drive to the wet end. Check WEMCO or nextSTEP design, length, shaft diameters, hollow air passage, keys/splines, flanges, bearing and seal seats, rotation and dynamic balance.
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Rotor Hub / Mounting Hub
Connect the drive shaft to the rotor or wet-end assembly. Check bore, keys/splines, taper, flange, bolt holes, locating faces, rotation, fits and assembly access.
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BHSA / Bearing and Seal
FLS lists bearing housing and shaft assemblies (BHSA) in its spare range. Check mechanism type, bearing designation, clearance, shaft/housing fits, seals, lubrication, speed, load and installation elevation.
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Froth Paddle / Skimmer
Mechanically assist recovery of thin or slow-moving froth. Check cell type, paddle length, diameter and count, rotation, shaft, chain/gear drive, speed, supports and launder interfaces.
View the Component Page →No. Air supply, rotor position and profile, matching disperser/stator, base plates and clearances differ. Verify the full series, cell volume, serial number and drawings.
No. They use external aeration, inclined-channel/pressure-chamber or coarse-particle designs respectively. Identify spares from their own piping, valves, tanks and project drawings.
Provide the full series, cell volume, serial number, cell position, drawings or samples, used-part photographs, key dimensions, material and slurry conditions. These support identification, material assessment, production at certified foundries, quality control and finished-part delivery.
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ANRANST provides customers worldwide with engineering assessment, production at certified foundries to the customer technical requirements, quality control and finished-part delivery for custom wear parts and industrial spares, with scope to support other custom industrial parts.
We review mating surfaces and interface dimensions and assess material, heat treatment and manufacturing feasibility.
Material grades and heat-treatment processes are specified order by order, stated in the technical agreement and tracked through production.
Drawing confirmation, material and process control, production tracking, inspection and acceptance coordination.
We coordinate manufacturing, quality confirmation, packaging and delivery of complete finished parts in a workable, closed-loop supply process.
Provide the equipment brand, complete model and serial number, part name, part number or drawing number, drawing revision, quantity, material requirements and duty. If identifiers are unavailable, send photographs and key dimensions.
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