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DDC-SIZERSDDC-Sizers are an evolution of the Double Roll Crusher.
McLanahan Corporation has been manufacturing this low
profile, compact crusher for over 50 years, having first
introduced them to the brick and clay industry to handle wet,
sticky feeds. Use of slow
roll speeds allow the
material to be grabbed
more efficiently and
differential roll speeds
impart a self-cleaning
action on the rolls for
sticky feeds.
Tramp iron protection is provided via a torque controlled
coupling located between the motor and reducer. Direct
hydraulic drives are also available for extremely tough
applications to reduce shock loading. One roll is
adjustable to control product size as the rolls wear
over time.
Since the McLanahan DDC-Sizer incorporates heavy-
duty compact drives, anchoring the unit to the foundation is
not necessary. Therefore, it can be mounted on tracks and
rolled out from under hoppers or chutes for easier access
during normal maintenance or to remove a piece of
uncrushable material.
IMPACT FEEDER-BREAKERSImpact Feeder-Breakers are a new solution for in-pit
primary crushing. An easy to use, easy to move alternative
to traditional primary crushers, they can handle feed
sizes up to 48" (1200mm) with capacities to 1,200 STPH
(1090 MTPH), eliminating hydraulic rock breakers. Supplied
with either a skid or powered/non-powered crawlers,
expensive foundations are eliminated. Material is dumped
directly onto the drag chain and flight bars pull material into
ROLL CRUSHERSRoll Crushers are an ideal machine to minimize “fines”
generation and/or to handle wet, sticky materials that would
be impossible for traditional primary crushers to handle
efficiently. The combination of impact compression and
shearing action breaks the material along its own inherent
fracture planes. McLanahan Roll Crushers use innovative
tramp relief systems (no shear pins or gas cylinders) so that
you don’t have to stop production if uncrushable material is
in the feed.
AVAILABLE IN SINGLE, DOUBLE, TRIPLE AND QUAD ROLL CONFIGURATIONS DEPENDING UPON THE APPLICATION REQUIREMENTS.
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Crushing RockWe specialize in crushing low silica materials such as limestone, gypsum, trona, salt, coal and more.Our crushing equipment is designed to minimize “fines” generation while efficiently handling wet,sticky feeds. As a world-wide leader and innovator in the design and manufacture of this type of
equipment, you can rely on us to deliver the best in quality, service and experience.
the crushing chamber. Excess fines are minimized since
already-to-size or just-crushed material falls to the deck
and is pulled under the rotor.
Product sizes such as a nominal 12" (300mm) can be
achieved or the unit can be adjusted to make other products
such as rip-rap.
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ROTARY SCRUBBERSRotary Scrubbers can be used as a primary washing
device to remove loamy, soluble clay completely or
as a pre-washing device prior to crushing, screening and
additional washing equipment. These units can be fitted
with either single or
double shell screen
extensions to dewater
and separate materials.
COARSE MATERIAL SCREW WASHERSCoarse Material Screw
Washers are used to
remove light, loamy
clays, crusher dust
and other soluble
waste fractions from
feed materials. Each
Coarse Material Screw
is designed for your
application by adjusting the number of paddles (20, 40 or all)
and the operating slope. Rising current helps lift waste
fractions to the water surface where they are then floated
over the back weir.
AGGREGATE CONDITIONERSAggregate Conditioners are generally used as a
pre-washing device (prior to a Sand Classifying Tank or
Wash Screen) to improve the classifying ability of the tank
or for easier removal of waste fractions when screening.
While similar in appearance to Coarse Material Screw
Washers, they differ in processing technique. Aggregate
Conditioners do not have a weir overflow. All material and
water fed into the unit must be discharged out of the bottom
of the box, so it
is not practical to
discharge material
onto a conveyor.
Trommel Screens orTrommel Scrubbers offer an efficient way to remove soluble clayswhile screening materialat the same time.
LOG WASHERSLog Washers are designed to remove tough plastic clay,
soft rock or other friable waste. Using replaceable, abrasion
resistant paddles fixed to a twin shaft design ensures
that an aggressive washing action breaks down even the
toughest clay. We always
recommend that a wash
or rinse screen be used
after the Log Washer to
ensure the final removal
of any coatings.
The new standard of Log
Washers, the McLanahan
X-treme Log Washer, can
handle capacities up to 500 STPH using reinforced paddle
bases, larger drives and lower operating slopes.
Scrubbing RockConfused about how to clean your rock efficiently AND get the highest return on investment?
Dealing with a tough clay or do you have a water soluble crusher dust coating your rock? Let us work with you to determine the best solution using the most cost effective equipment and processing techniques. One type of equipment does not fit all applications, that’s why
we offer more choices than any other manufacturer.
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There are two basic styles of Fractionated Sand Plants
(Recipe & In-Line Blending) both pioneered in North
America by McLanahan personnel, that allow producers to
maximize yield and produce very accurate gradations in
primary and specialty products. Every grain of sand has the
potential to be used in a higher priced end product.
RECIPE SAND PLANTSThe Recipe Sand Plant is the most versatile method for
producing sand. Utilizing equipment, including Cyclones,
Hydrosizers™ and Dewatering Screens, the systems
produce discrete sand fractions for storage in bins. Based
upon the desired end
product, feeders at the
bottom of these bins
meter the exact quantity
to meet the most stringent
gradations. This type of
system allows you to
produce a myriad of
construction sands and/
or specialty sands.
SAND-MANAGER® CLASSIFYING TANKSSand-Manager® Classifying Tanks provide a simple method
to remove excess water, slimes or undesirable grain sizes
from natural or crushed sand feeds. By separating the sand
fractions and reblending them according to a computer
program, you can make multiple products simultaneously
from the same feed. Products from the Sand-Manager®
Classifying Tanks are dewatered with Fine Material Screw
Washers or Dewatering Screens. With low initial cost and
easy operation, this system
offers advantages to producers
primarily interested in making
concrete and mason sands.
Sand Pro
Advantages:Highest yields,
unlimited numberof products and
maximum return oninvestment.
There are many ways to make sand p Choosing between Classifying Tanks, Attr
Screw Washers, etc. can be difficult. However and experience to help you find the
IN-LINE BLENDING SAND PLANTSThe In-Line Blending Sand Plant offers the operator many of
the same advantages as the Recipe Sand Plant, but at a
reduced investment since storage bins are not required.
After the sand is fractionated, a PLC based algorithm
controls the ratios by which the fractions are blended
“on the fly”.
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SCREW WASHERSScrew Washers are an effective way to wash, dewater,
deslime and control the bottom end of the gradation. A
large pool area provides maximum retention of desirable
product sizes, while a rising current system floats off the
excess “fines”.
Advantages: Simple to operate, limited maintenance and low power consumption.
ULTRA SAND PLANTSSystems for natural and manufactured sands utilizing
Cyclones, Dewatering Screen(s), Sumps and Pumps are
designed to control the bottom end of the sand spec
while producing the driest possible product. Single and
multiple product and modular plants available.
Advantages: Improved yield, highest production rate,drier product and modular design.
SAND SEPARATOR SYSTEMSSeparator™ Systems retain more of the critical finer
fractions instead of sending them to settling ponds.
This retained tonnage moves across your scale as a
saleable product. In addition, sharper classification versus
conventional methods, such as Screws, can result in
improved sand equivalency (SE). The Separator™ is the original
controlled underflow Cyclone. In 1972, this technology was
patented with the
design and expertise
owned by McLanahan.
DEWATERING SCREENSDewatering Screens were introduced in the late 1970’s by
McLanahan personnel and quickly became the standard in
the mining industry. Dewatering screens offer multiple
advantages for construction and specialty aggregate
producers, including a dry “drip-free” product that other
types of equipment cannot provide. Dewatering Screens are
used in many applications including dewatering products
from Sand Classifying Tanks and Screws, or within a system
such as the Recipe Sand Plant.
ocessing
Advantages: High capacities,multiple products, betterstockpile management, low power consumption, low maintenance and
driest product.
products. Which one is best for you? ritioners, Scrubbers, Dewatering Screens,
r, you can rely upon our 100+ years of history e best solution for your application.
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COARSE MATERIAL SCREWSCoarse Material Screws are not only an effective way to
remove a light, loamy clay or crusher dust, they also remove
floating vegetation such as sticks and twigs.
LITES-OUT™
Lites-Out™ Systems – either as a stand-alone system or as
an add-on to your existing Sand Classifying Tank – will
remove lignite and other low gravity contaminants from
sand. This unique, gravity based process does not require
the addition of any chemicals or heavy media such as
Ferro-Silicon or Magnetite to achieve separation. This
same technology can be used for soil remediation and
construction debris applications.
ULTRA CLEAN ATTRITION SCRUBBERSThe Sand Stabilization Process (SSP) uses proven mineral
processing techniques to effectively deal with deleterious
materials affecting Durability
and SE’s. By creating an
environment of high shear,
coupled with state-of-the-art
dewatering and desliming
technologies, the process is
a significant improvement
over Screw/ Blade-mill based
processes which are a current
industry standard.
McLanahan uses proven technologies in innovativeways offering customized transportable (mobilesystems) for primary sand production, classification,fines recovery, environmental projects and effluenttreatment.
Mobile Systems
Contaminant RemovalIs your pit contaminated with lignite, coal or shale? Now, with our help, you can turn an undesirable pit into a money-maker, capture new markets and reduce complaints.
With conventional equipment or specialty systems such as the Lites-Out,™
we are able to solve any problem.
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Water Management
Fines RecoveryAs an innovator in the industry, we have developed the largest range of fines recovery equipment
available. Our customized systems recover usable product and reduce environmental liability.
ULTRA FINES RECOVERY PLANTSRecovery of +400 mesh (38 micron) “fines” as a conveyable, stackable product is cost-effective using theUltra Fines Recovery System (UFR). Featuring field provenequipment, this system provides the finest size fractionrecovery available without the use of chemicals.Installation costs are kept low due to the modular construction. Start-ups are faster with the integrateddesign.
Advantages: no chemical or polymers needed, modulardesign, non-plugging cyclones.
SEPARATOR SYSTEMSRecovery of +200/325 mesh (75/45 micron) material usingthe Separator™ System is the simplest, most cost-effective, way of recovering sellable “fines” fromwaste streams. Systems feature the original Separator™
(either single or multiple units) coupled with the rubber lined Pump to provide trouble free, low maintenance operation. Recovered material can be selec-tively blended back into Screws, road base mix or stock-piled as a stand alone product such as mortar, tile, cable
fill, flowable fill,AgLime, etc.
THICKENERSThe McLanahan designed High Rate Thickener is simple indesign and operation with specific benefits for today’s producers. After removing usable materials from the effluentstream, Thickeners recover immediately re-usable processwater adjacent to the plant site. The availability of water atthe point of use substantially reduces pumping HP. Becausethe volume of the Thickener’s effluent is small, there’s noneed for large settling ponds and process water ponds totake up valuable real estate and other resources. This, thenreduces water consumption and mitigates environmentalissues.
McLanahan is a leader in providing complete effluent treatment/water management solutions.
Additional Systems
Additional Products
AGGREGATE SWEEP SAMPLERHSS Sampling, a Division of McLanahan Corporation, hasbeen designing and supplying Sampling Systems world-wide since the mid-1960’s. HSS Aggregate Samplers willprovide you with:
• An automatic and economical way to easily, safely and
accurately collect samples from your moving conveyor belt
• Increase employee safety by eliminating the need for“grab” samples
• Save time and money by keeping your conveyor on the move
• Reduce out-of-spec product piles and increase accuracy of sampling analysis
OTHER SYSTEMS• Soil Remediation, lead shot and bottom ash separation
• Classifying in Millings Circuits to prevent over grinding in mineral sands, iron ore and coal
• Wash circuits for removal of reagents (e.g. Phosphateacid wash circuits)
Three Samplers Installed To Collect A Road Base Material.
Guards are recommended for safe operation of equipment. In some photos, safety guards may not be shown. PS-2102
AGGREGATE PROCESSING
PUMPSThe range of horizontal spindle, centrifugal slurry pumps are ruggedly designed for the most severe duties. Field replaceable, wet-end linings are available in premium rubber, white food grade rubber, nitrile and high chrome iron. Verticalconfiguration is available on special order, and vortex flow impellers are availablefor fibrous materials.
OTHER PRODUCTS• Stabilized Road Base Mixers• Pugmill Mixers
WORLD HEADQUARTERS 200 Wall Street, Hollidaysburg, PA 16648 USA Ph: +1 (814) 695 9807 Fax +1 (814) 695 6684 E-mail: [email protected]
Tennessee 585 Airport Road, Gallatin, TN 37066 USA Ph: +1 (615) 451 4440 Fax +1 (615) 451 4461 Email: [email protected]
Florida 2920 Barneys Pumps Place, Lakeland, FL 33812 USA Ph: +1 (863) 667 2090 Email: [email protected]
Iowa 800 First Avenue N.W., Cedar Rapids, IA 52405 USA Ph: +1 (319) 365 0441 Email: [email protected]
Australia 16 Callistemon Close, Warabrook, NSW 2304 Australia Ph: +02 49 248 248 Fax +02 4926 2514 Email: [email protected]
United Kingdom 11 Warren Rise, Frimley, Surrey, GU16 8SH UK Ph: +44 (0)7407 344757 Email: [email protected]
mclanahan.comwww.mclanahan.com