Derrick Stack Sizers 5 deck for fine screening and dewatering mineral processing
The Derrick Stack Sizer is a high-frequency, multi-deck screening machine used for fine screening and dewatering in mineral processing applications.
It is designed to achieve high screening efficiency, high capacity throughput, and a significantly smaller footprint compared to conventional screening equipment.
Stack Sizers are commonly used for separations down to 38 microns and are widely applied in mineral sands, iron ore, silica sand, and other high-tonnage processing operations.
It is a much better alternative to hydrocylcone separators, hydraulic classifiers, and less efficient low volume screening systems.
Derrick Stack Sizer Specifications
- High separation efficiency with a compact footprint
- Available in 1 to 5 deck configurations
- Separation range from 6.3 mm down to 38 microns
- High capacity throughput depending on application
- Reduced footprint compared to conventional screening systems
Ask a Question or Get a Price Quote!
Speak with one of our sales engineers today.
Call: (979) 217-1480
What is the Vibration Frequency of a Derrick Stack Sizer?
Derrick Stack Sizer screens operate using high-frequency vibration generated by dual vibrating motors.
The operating speed is typically in the range of 1,500 to 3,600 RPM depending on the application and configuration.
This high-frequency motion improves particle stratification and allows efficient fine particle separation.
How Many Decks Does a Derrick Stack Sizer Have?
Typically, Derrick Stack Sizer screens are available in configurations ranging from 1 to 5 decks.
Each additional deck increases screening capacity without increasing the overall footprint, making them ideal for high-capacity plants.
What Are Repulp Sprays on a Derrick Stack Sizer?
Repulp sprays introduce additional water between screen decks to improve fines recovery.
They help wash fine particles through the screen media, improving separation efficiency and producing a cleaner oversize product.
Stack Sizer Capacity and Screening Efficiency
Stack Sizers can handle high throughput rates depending on the application.
Typical installations process up to 300 tons per hour with separation efficiencies ranging from 85% to 95%.
How Does a Stack Sizer Work?
A single feed is introduced to the vibratory screen at 5 separate feed points.
Two industrial vibration motors apply a high frequency vibrating motion to all five screen decks uniformly creating a linear vibrating motion.
The linear motion also helps to convey the screened oversized material out of the way of oncoming feed slurry, so more open screen area is available for the oncoming feed.
Each of the screen decks provides an undersize collection pan. The undersize from each of these pans moves to a single collection hopper below. Oversize material is transported to a single oversize collection hopper.
An optional re-pulping system is available.
What Kinds of Minerals or Products Can the Stack Sizer Process?
- Aluminum Dross
- Bauxite
- Chromium Ore
- Coal
- Colombium
- Copper
- Feldspar
- Ferberite
- Frac Sand
- Garnet
- Gypsum
- Iron Ore
- Kaolin
- Lead and Zinc
- Mineral Sands
- Nitrates
- Phosphates
- Platinum
- Potash
- Rare Earth Minerals
- Resin Pellets
- Scheelite
- Silica Sand
- Tantulum/Niobium
- Tin Ore
- Titanium
- Tungsten
- Ore Uranium
Test Your Material
Customers can view their material operating on a Stack Sizer at full production rate and over extended time periods. This service is provided at the Derrick’s test facility.
Call us to arrange a material test session: (979) 217-1480
Derrick Corporation Test Facility
Case Study 1: Processing Mineral Sands with Multiple Stack Sizers
- A single machine processing mineral sands
- 500 micron separation
- Handles feed rates of 300 tons per hour
- Achieves separation efficiencies of 90-95%
Processing Mineral Sands
Case Study 2: Stack Sizers in an Iron Ore Processing Plant
- 75 micron separation
- Handles feed rates of 130 tons per hour per unit
- Separation efficiency in excess of 85%
Screening Iron Ore
Learn more about Derrick screening and dewatering equipment for mineral processing applications.
Ask a Question or Get a Price Quote!
Speak with one of our sales engineers today.
Call: (979) 217-1480