Back to Buyer Q&A

Buyer question / selection note

How do I choose flotation machine size for a copper ore plant?

Start from feed flow and required residence time by stage (rougher, cleaner, scavenger). Then convert total required volume into cell size and count. Final sizing should be validated with testwork whenever possible.

Technical review updated July 11, 2026

01 / Decision summary

Quick takeaways

  1. 01Cell sizing is a circuit problem, not a single-machine decision.
  2. 02Residence time targets drive total required flotation volume.
  3. 03Rougher-cleaner-scavenger duties need separate sizing logic.
  4. 04Pilot data greatly improves sizing confidence.

02 / Engineering notes

Selection guidance

01

Step 1: Calculate total flotation volume

Use slurry flow and target residence time per stage to determine total volume. This prevents under-sizing that later hurts both recovery and grade stability.

02

Step 2: Split duties by stage

Do not size all banks the same way. Rougher banks prioritize recovery, cleaner banks prioritize grade, and scavenger banks prioritize value recovery from tails.

03

Step 3: Lock operating envelope

Check grind size, pH regime, and reagent strategy with metallurgy team before final procurement. Mechanical selection without process envelope usually creates rework.

03 / Visible FAQ

Frequently asked questions

01
Can I size flotation cells using only throughput t/h?
Not reliably. You also need slurry density, residence time targets, and stage-by-stage process requirements.
02
Should cleaner stage use the same cell size as rougher?
Often no. Cleaner duty is different and may require different volume and control strategy.
03
What is the main risk of under-sizing?
Under-sized banks usually cause unstable froth behavior, lower recovery, and reduced concentrate quality consistency.

Review model specifications and application limits before requesting a quote so the supplier can check the recommendation against a defined duty.

01

Flotation Machine

SF flotation cells for copper sulfide, lead-zinc, graphite, fluorite, and gold-bearing sulfide circuits. Listed cell volumes run from 0.37 to 20 m³ and can be arranged in rougher, cleaner, or scavenger banks after ore testing.

02

Ball Mill

Ball mills for wet or dry grinding after crushing in copper, gold, iron ore, graphite, and limestone circuits. Overflow or grate-discharge configurations can serve primary grinding, regrinding, or closed-classifier loops before flotation, magnetic separation, or gravity recovery.

Project check

Ask for a recommendation against your operating conditions.

A useful reply needs the inputs that control feed acceptance, reduction ratio, product split, and real hourly duty.

  1. 01Material and hardness
  2. 02Maximum feed size
  3. 03Target product sizes
  4. 04Required throughput

05 / Related references

Next reading

Application guides

Generalized ore and operating scenarios—not claims of installed customer projects.

Related buyer questions

02

Jaw Crusher vs Cone Crusher for Granite Quarry

A practical comparison for granite quarry buyers. Learn where jaw crushers and cone crushers should be placed, what each machine does best, and how to avoid overspending on the wrong setup.

03

What Is a Good Jaw Crusher for 200 TPH?

Selection guide for buyers targeting around 200 t/h. Match feed size, discharge target, and rock hardness to the right PE model before requesting quotes.