• Mark Joe
    Perfect seller, excellent product, superb price, and straightforward shipping. We could not be happier with Henan Ascend Machinery and Equipment Co Ltd - Communication was excellent throughout, so easy to contact and always responded extremely quickly. Definitely looking forward to future orders with this company.
  • Remember Akido
    I buy two 1600 wet pan mill and 2 jaw crushers from Ascend machinery company, the quality is very good and Wilson is very helpful in assisting me all the techinical support. We have produced more than 300KG gold. Will continue work with them and go together with this company!
  • Jose Anthony
    Ascend company provided me good after-sale service after buying their gold ore dressing plant, that’s important to me, will consider to buy the second plant
Contact Person : Wilson Shi
Phone Number : +86 18221130967
WhatsApp : +008618221130967

Knelson Centrifugal Concentrator STL30 STL40 Ore Dressing Equipment

Place of Origin China
Brand Name Ascend
Certification ISSO9001
Model Number STL30 STL60 STL80 STL100
Minimum Order Quantity 1 set
Price USD 3000-5000 Per set
Packaging Details wooden box in container
Delivery Time 7 working days
Payment Terms T/T, Western Union, L/C
Supply Ability 20 set per month
Product Details
Name Knelson Gold Centrifugal Concentrator Application Gold Gravity Separation
Voltage 380v Or 220v Industry Gold Mining
Type Gravity Separator,gold Ore Processing Equipment,gold Concentrator Inner Bowl Material Stainless Steel
Warranty 1 Year Recovery Rate 95%
Recovered Material Gold Concentrate After-sales Service Provided Engineers Available To Service Machinery Overseas
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alluvial placer gold knelson centrifugal concentrator


STL30 mineral processing machine


STL40 Ore Dressing Equipment

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Product Description

High efficiency gold knelson centrifugal concentrator


The automatic Discharge Centrifugal Gold Concentrator is also call Knelson gold centrifugal concentrator, or gold centrifuge. It is mainly used to collect the free gold particles from the placer alluvial gold sand or rein gold slurry ground by the grinding mill, like ball mill or wet pan mill.
For now, five models have been developed. Capacities range from laboratory scale to 150 tons of solids per hour. Beneficiation test shows that the recovery can be 99%,especially for recovering the natural lode ore gold,when 65% Grind size are smaller than 0.074 mm ,the recovery is expected up to 98%.For 0.004 mm size natural gold, the recovery is 97%.

Knelson Centrifugal Concentrator STL30 STL40 Ore Dressing Equipment 0


Working principle

The raw material containing gold sand and water is fed into the concentrator, and the concentrator bowl is rotating with the the powder of the motor. The raw material is spalshed back and forth by the eccentric power from the bowl liner. Meanwhile the backlash water will be washing the raw material from the bottom of the bowl liner. Because of the gravity eccentric power, the heavy gold concentrate will be keeped and stay in the groove of the bowl liner, and the light sand will be discharged from the discharge mouth.

Knelson Centrifugal Concentrator STL30 STL40 Ore Dressing Equipment 1

Product pictures

Features of gold centrifugal concentrator :
1. High concentrating ratio and high recovery
2. Total process automation, steady recovery performance
4. Environmentally friendly ( no chemical additives or reagents)
5. Low water and electricity requirements
6. Low production costs, durable wear parts, minimal maintenances requirements
7. Compact design requiring less space, easy merged into the existing mining processing
8. Quick payback on investment, typically lass than half year


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Customer working site

The centrifugal usually works together with the  gold grinding mills like ball mill, wet pan mill or chillean mill to be fed with gold ore slurry and select the free gold or big size gold, the remaining gold will be discharged and goes to the shaking table or gold sluice so that the tailing gold can be reselected.


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Model Capacity
Feed size
Slurry density
Backlash water quantity
Concentrates capacity
Cone rotation speed
Pressure water required
STL-30 3-5 3 0-4 0-50 6-8 10-20 600 0.05 0.5
STL-60 15-30 7.5 0-5 0-50 15-30 30-40 460 0.16 1.3
STL-80 40-60 11 0-6 0-50 25-35 60-70 400 0.18 1.8
STL-100 80-100 18.5 0-6 0-50 50-70 70-80 360 0.2 2.8

Package and delivery

We can offer various ways of package, dust-free wooden cases, steel plate cases, or as the clients' request. Most of the time, the equipment will be loaded to the containers in the factory. our workers make sure all equipment are steady and fixed before close the door of the container, there will be no damage during transporation and shipment. Following pictures are typical package, reinforcement in the container, and delivery from us.

Knelson Centrifugal Concentrator STL30 STL40 Ore Dressing Equipment 4

Knelson Centrifugal Concentrator STL30 STL40 Ore Dressing Equipment 5