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SF Flotation Cell/Machine

Capacity: 0.2～20 m³/min

SF flotation cell is a mechanical agitation type with slurry suction and air suction. It represents the third generation of flotation equipment and is widely used in roughing, scavenging, and concentrating operations for nonferrous metals, ferrous metals, and non-metallic minerals. Its simple structure, stable operation, and strong adaptability make it particularly suitable for small and medium-sized mineral processing plants and complex mineral separation operations.

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SF Flotation Cell/Machine Overview

Flotation machines constitute the basic equipment for the recovery of useful minerals from non-ferrous ores and other raw materials by flotation. They can also operate as individual flotation cells.

Flotation Cells (Froth Flotation) were developed to separate and recover high-value Sulphide ores from low-grade ore bodies. The Flotation Cell is aerated to produce bubbles and agitated to keep the solids particles in suspension in the pulp. A flotation cell is an appliance in which froth flotation of ores is performed. It has provision for receiving conditioned pulp, aerating this pulp, and for separate discharge of the resulting mineralized froth and impoverished tailings.

Flotation Cells/Machines Types

Agitating flotation machine
Self-priming flotation machine
Aeration flotation machine
Flotation column machine

Flotation Cells/Machines For Sale
Our froth flotation separation is sold all around the world and is popular with clients. The models of our flotation cells are main including SF, XJK, JJF, XCF, KYF flotation cells.

Advantages

The SF flotation cell delivers high-performance flotation with several key advantages: Its design enables seamless combination with the JJF flotation cell as part of an integrated unit, functioning efficiently as a self-priming suction tank. Equipped with mechanical agitation, self-inflation, and self-priming pulp, it ensures superior slurry mixing while minimizing sanding issues due to upper and lower recirculation—perfect for coarse ore flotation.

Engineered for low energy consumption, it features a wide impeller-to-cover gap, maximizing air intake and bubble dispersion. The backward double-sided impeller blades enhance slurry recirculation for improved particle recovery. With a lower rotor speed, it reduces wear and extends operational life, while the forward-leaning tank design minimizes blind zones, speeding up froth removal for faster separation. The beveled tank geometry ensures stable operation, backed by a proven metallurgical design for reliable performance in demanding mineral processing applications.

Mechanical agitation with self-air-inflation and self-priming pulp

Large air inflation amount

Less energy consumption

Beveled tank design, stable operation

Self-priming Structure

A special impeller-stator assembly draws air, eliminating the need for an additional blower and reducing equipment investment by 20%-30%.
The air intake capacity can reach 1.0-1.5 m³/(m²·min), meeting the flotation needs of most minerals.

Optimized Slurry Circulation

A U-shaped trough with guide plates improves slurry suspension and reduces the risk of sedimentation.
Suitable for slurries with a concentration of 20%-45%, it achieves excellent separation results for fine-grained minerals (minus 0.074mm).

Energy-Saving and High-Efficiency

Compared to traditional A-type flotation machines, energy consumption is reduced by 15%-20%.
Power consumption per unit of processing capacity (based on dry ore) is only 1.8-2.5 kW·h/t.

Flexible Adaptability

Can be combined with a JJF flotation cell (similar to the Denver D-R model) to improve mineralization efficiency.
It can be used for the flotation of various minerals such as copper, lead, zinc, gold, pyrite, graphite, fluorite, etc.

Structures & Working Principle

SF Flotation Cell/Machine Structure
The structure of the SF flotation cell is mainly composed of the tank, impeller, motor, scraper and transmission device, etc.

SF Flotation Cell/Machine Working Principle
When the rotor is rotating, an internal vacuum is created both in the upper and lower blade zone. Ambient air is drawn through an air intake pipe and standpipe by the action of the upper blade, the bubbles are then micronized and make the minerals easier to stick on the bubbles. Mineral particles are collected by air bubbles forming aggregates in the contact zone, and Mineralized Bubbles aggregates rise by buoyancy towards the froth zone. The pulp from the upper tank zone is recirculated by the upper blade, while the lower blade is designed to recirculate slurry from the bottom of the tank to minimize the sanding of coarse particles.

Technical Parameters

Model	Volume（m³）	Cell Size(mm)	Impeller Dia.(mm)	Impeller Speed(r/min)	Capacity(m³/min)	Power(kW)	Singe cell weight(kg)
SF-0.37	0.37	700×700×750	296	386	0.2-0.4	1.5/0.55	468
SF-0.7	0.7	820×900×950	350	400	0.3-0.9	3/1.1	805
SF-1.2	1.2	1100×1100×1100	450	312	0.6-1.2	5.5/1.1	1373
SF-2.8	2.8	1700×1600×1150	550	268	1.5-3.5	11/1.5	2138
SF-4	4	1850×2050×1200	650	220	2–4	15/1.5	2582
SF-8	8	2200×2900×1400	760	191	4–8	30/1.5	4129
SF-10	10	2200×2900×1700	760	191	5–10	30/1.5	4486
SF-16	16	2850×3800×1700	760	191	5–16	30×2/1.5	8320
SF-20	20	2850×3800×2000	760	191	5–20	30×2/1.5	9829