ROC’N
AUGUST 2018 ISSUE
Mississippi Producer Boosts Production with Economical Crushing & Screening Solution
In the world of asphalt paving, contractors stay on
top by maintaining complete control over the quality
and delivery of the asphalt mix – while keeping costs
down. That’s the mission for Jackson, Mississippi-
based Dickerson & Bowen (D&B) Construction,
which produces and places more than 700,000 tons
of asphalt per year. Founded in 1947, the company
is recognized for premium paving projects that
include highways, city and county roads, airports,
and commercial developments throughout Central
and Southwest Mississippi.
For optimum quality control and cost-efficiency,
Dickerson & Bowen, under the name D&B Sand
& Gravel, operates its own asphalt plants at four
locations, and controls its raw materials costs by
processing its own aggregate products at three
mining facilities. According to the D&B management
team, the operation of its own asphalt and aggregate
plants “is what sets us apart in our region.”
To meet market demand, D&B needed to boost its
aggregate production, particularly at its Georgetown
Plant, which had experienced crushing and
screening bottlenecks due to the operation of older,
antiquated equipment. Maintenance downtime had
literally started to exceed plant uptime.
When the D&B management team decided to
upgrade the plant, they wanted their new crushing
and screening equipment to be robust and reliable,
yet affordable. “We needed to find well-built units
that would allow us to beef up production, while
also meeting our budget targets,” says D&B Plant
Foreman Keith Killingsworth. He explains that
the plant upgrades began in consultation with
REMco Operators Council Newsletter
COPYRIGHT © REMco MMXVIII ALL RIGHTS RESERVED
Figure 1: The aerial view of the REMco PROscreen at Dickerson & Bowen Construction site in Mississippi.
Pump Up the Volume –!–REMco (Rock Engineered Machinery Co. Inc.),
which maintains its North American manufacturing
operations and materials test crushing facilities in
Livermore, California.
After working with REMco application engineers,
D&B installed a REMco Series 1530 RockMax VSI
Crusher. The success of the crushing circuit led to
the recent installation of a new REMco PROscreen.
“We’re excited about the results,” says Killingsworth.
Along with eliminating the bottlenecks, and
lowering operating costs per ton, he says that they
have “pumped up production volumes by more
than 40-percent,” while significantly minimizing the
company’s capital equipment investments.
Engineered for reliability
The material flow at the
plant begins with washed
material (either #57s or
pea gravel) being fed to
the 300-HP RockMax VSI,
where it’s crushed into a
range of products from
1/2-inch to 3/8-inch-minus.
The crushed material is
conveyed to a triple-deck,
6-ft. x 20-ft. PROscreen.
“It’s a heavy-weight, well-
braced screen that’s priced
very affordably,” says
Killingsworth.
Manager for REMco. Assisted by the REMco parts
and service team, Howell provides ongoing support
to producers throughout his region.
“We’ve engineered the PROscreen for reliable
performance,” says Howell. He explains that the
unit is designed with heavy-duty dual coil spring
trunnion suspension. Its modular mechanism tube
and support deck frames are secured by high-tensile
bolts with self-locking nuts for easy replacement.
Additionally, its vibrator mechanism is complete with
heavy-duty, double-row spherical roller bearings;
outbound fly-wheels with adjustable throw weights;
and personnel guards.
To meet the requirements of any product sizing
application, Howell says the PROscreen is
Cost-efficient Operation
He also likes that the screen is configured for grease
versus oil lubrication, for ease of maintenance and
reduced costs. “Our previous screen was just worn
out, and we spent more time working on it than
running it. Now, we’re seeing productivity and plant
uptime,” he says.
With the new screen, Killingsworth explains that
they can make three different products at one
time. “By opening a gate or closing a flap, we can
easily change out products. We’re able to stockpile
300-tons-per-hour of finished products – and that’s
without even putting a full load into the crusher,” he
says. Versus a volume of less than 1800-tons-per-
day when operating the previous system, he says
that the new equipment is processing up to 2500-
tons of pea gravel daily, and “we can easily put out
10,000-tons of 1/2-inch material ‘without batting
an eye,’” he adds.
Figure 2: The REMco RockMax Series 1530 VSI Crusher
As to the RockMax VSI, Killingsworth says that it had
paid for itself within a year and a half. “This VSI is
well-built and reliable, and it has saved us a lot on
wear costs. On the old crusher, we had to change out
the anvils every eight hours. On the new crusher, we
change out the tips every hundred hours, and every
300-hours, we pull out the rotor,” he says.
“After a thorough analysis of the application, we
worked closely with D&B to provide economical
solutions and to optimize the crushing and
screening circuits for maximum performance,” says
Mike Howell, who serves as the Central Regional –!–manufactured in a wide range of sizes (up to 8-ft.
wide and in lengths up to 24-ft.) and in one, two,
three and four-deck configurations. Screen decks
are available in single-crown, double-crown, or flat
to suit specific screening needs.
Regarding the RockMax VSI, Howell says that
its advanced technology allows the unit to cost-
effectively surpass the tonnage capacities of older-
style crushers. He explains that REMco VSIs are more
power efficient due to the unique geometry and
Quality control
variety of open and closed rotors to meet desired
feed and product sizes. “Because the RockMax
achieves such a high crushing velocity, it minimizes
material recirculation and increases the volume of
net finished product with the best particle shape,”
he says.
Importantly, Howell stresses that the RockMax is
engineered to deliver significant reductions in wear
costs. “The unit combines extra heavy-duty vertical
shaft impactor design with autogenetic (rock-lined)
crushing chambers and rotors, which lowers the wear
parts operating cost of the RockMax VSI to a level
equal-to or less-than any fine-head cone crusher,” he
says, adding that the latter applies to cost-per-net-
ton of finished product regardless of the material or
product tonnage required.
By employing economical crushing and screening
solutions, Dickerson & Bowen can effectively retain
control over the quality of the asphalt mix, providing
its customers with the highest-quality finished
products, while meeting budget and timeframe
requirements. Its aggregate processing facilities and
asphalt plants are cost-efficient and strategically
located, allowing the company to remain a leader in
cost-effective asphalt paving solutions.
Figure 4: The REMco PROscreen has been in operation for three years, and Dickerson & Bowen are satisfied customers.
Figure 3: Close up view of the material being sorted
through the REMco PROscreen.
By: Carol Wasson (08/2018) –!–Backed by 5 year manufacturer warranty!
REMco SandMax, RockMax, and ST/AR VSI
crushers are recognized around the world for
their production of fi ne aggregate and sand to
meet customer expectations for specifi cation,
fi nished TPH, and operating cost. Guaranteed!
• C33 Concrete Sand
• Specialty Sand Products
• Cubical particle shape
• High fracture face count
• Increased fi nished product durability
• Balanced plant production
Size reduction and separation equipment
designed for years of reliable service in
aggressive aggregate environments. Primary
jaw crushers, secondary and tertiary cone
crushers, vibrating feeders and screens,
REMco’s PROline can solve your processing and
budget challenges at the same time.
• Fixed installation
• Optional modular skid mount
• Optional portable mount
GO PRO AND GET IT DONE
Just Crushin’ it
since 1983
Rock Engineered Machinery Co. Inc.
263 S. Vasco Road • Livermore, CA 94551 • USA
Tel (925) 447-0805 • Fax (925) 447-7038
Email: crush@remcovsi.com
Website: www.remcovsi.com
A WORLDWIDE PRODUCT OF REMco – AN AMERICAN COMPANY –!–Rock Engineered Machinery Co. Inc.
263 S. Vasco Road • Livermore, CA 94551 • USATel (925) 447-0805 • Fax (925) 447-7038
Website: www.remcovsi.com/special.html
A WORLDWIDE PRODUCT OF REMco – AN AMERICAN COMPANY
REMco is including safety gear to customers who use the promo code #safety on REMco wear parts orders of $5,000* between 8/31/18 -10/1/18 !Contact your REMco Team member and place your order today!
Toll Free (800) 782-2411 with promocode #safety
Play it safe
*While supplies last, dealer participation required on all orders placed through a REMco authorized distributor, and applicable to end users only and cannot be combined with any other of er.
Stock up and get your safety gear –!–Tech Talk
All REMco crushers are supplied with a complete set
of safety and information stickers. These signs are
made of long lasting, weather resistant urethane
laminate.
Did you know that crusher stickers are color coded?
Informative stickers are green, warning/caution
stickers are yellow and danger stickers are in red.
Review all stickers and realize the significance of
each of the warning labels. These REMco crusher
safety stickers are mounted conspicuously around
the crusher where operation and maintenance
personnel can readily view them.
Service and Maintenance tips for REM crusher operators co
Ignoring your REMco Safety Stickers can be costly
Guidelines to understanding safety stickers crusher performance. The drive on new crushers
or any new set of belts should be tightened at
least 3 times. First, after initial no load running for
a minimum of 30 minutes, second time after 2 to
4 hours of running under load and the third time
after 8 hours of running under load. Using the belt
tension tester, set the ring for the deflection and the
tensioner push until the ring is even with the back
of the belt. Try to get as close to the center between
the two sheaves as possible to see the pound
scale, adjust as needed. Do you have the correct
belt tension for your REMco crusher? Contact our
Technical Service Department to learn more about
the different belt tension power rating.
LIFT COMPLETE CRUSHER HERE. These stickers
are essential when lifting the crusher. Take care to
use properly sized shackles, cables, or lifting straps
and be sure that they are attached to designated
lifting points on the machine. The placement of the
hooks ensures that the crusher is level to avoid any
damage to the crusher body. REMco recommends
that a crane or similar suitable device designed for
precision lifting be used for crusher servicing.
Why are these stickers important
CAUTION: OVER-TENSIONING OF DRIVE BELT
SHORTENS BELT LIFE AND MAY RESULT IN BEARING
FAILURE. Belt tensioning is the most important
factor necessary for long, satisfactory v-belt
operation. Too much tension results in excessive
strain on: belts, motor bearings and shaft. While
too little tension will result in slippage, causing
heat, rapid belt and sheave wear, poor belt life and
ROTATION DIRECTION. Rotor direction is essential
to the crusher’s production. When any type of work
is performed on a motor or starter, double check
that the connection is correct to prevent the drive
from going in the wrong direction. When a rotor
runs backwards, excessive wear will occur on all the
wear parts and rotor body. This type of error may
result in catastrophic rotor and crusher damage.
Figure 3: This was the damage created when work was done to
the motor, the rotor ran backwards.
Figure 1: The proper placement of shackles on a REMco VSI to
ensure machine is level when lifted.
LIFT COMPLETE CRUSHER HERE
Figure 2: Using the belt tension tester to accurately determine
the belt tension of the crusher.
CAUTION: OVER-TENSIONING OF DRIVE BELT SHORTENS BELT LIFE AND MAY RESULT IN BEARING FAILURE
ROTOR ROTATION –!–DANGER: STAND CLEAR OF HOPPER WHILE LIFT
CYLINDER IS IN OPERATION. HOPPER SWINGS
EITHER DIRECTION. All REMco models with a
hydraulic open top (H.O.T) have a safety stop that
will not let the hopper close or move until the
operator is ready to move it. The safety sticker is a
reminder that a point on the crusher lid creates a
pinch point.
Figure 6: Typical safety sticker placement for all REMco Single
Drive VSI Crushers.
REMco 13-00-0025
-ST
A World Wide Product of REMco
DANGER
STAND CLEAR OF HOPPER
WHILE LIFT CYLINDERIS IN OPERATION.
HOPPER SWINGS
EITHER DIRECTION13-00-0092
IMPORTANT
DO NOT WELD ON ROTOR
WHILE ROTOR IS IN THE
CRUSHER. WELD ARC WILL
DAMAGE BEARING CARTRIDGE DO NOT OPERATE THIS
CRUSHER UNTIL YOU HAVE
COMPLETED THE
WARRANTY REGISTRATION.
SEE WARRANTY AND
OPERATING RECORD LOG
BOOK FOR DETAILS13-00-0126 13-00-0060
ROCK ENGINEERED MACHINERY CO. INC. GREASE
LABYRINTH SEAL13-00-0217LUBE OIL IN
LUBE OIL OUT
DANGER
STAND CLEAR OF HOPPER WHILE LIFT CYLINDER
IS IN OPERATION.HOPPER SWINGS
EITHER DIRECTION13-00-0092
-ST
REMco 13-00-0025 A World Wide Product of REMco
-ST
IMPORTANT
DO NOT WELD ON ROTOR
WHILE ROTOR IS IN THE
CRUSHER. WELD ARC WILL
DAMAGE BEARING CARTRIDGE
DO NOT OPERATE THIS
CRUSHER UNTIL YOU HAVE
COMPLETED THE
WARRANTY REGISTRATION. SEE WARRANTY AND
OPERATING RECORD LOG
BOOK FOR DETAILS13-00-0126
13-00-0060
DANGER
STAND CLEAR OF HOPPER
WHILE LIFT CYLINDER
IS IN OPERATION.HOPPER SWINGS
EITHER DIRECTION13-00-0092
ROCK ENGINEERED MACHINERY CO. INC.
DANGER
STAND CLEAR OF HOPPER
WHILE LIFT CYLINDERIS IN OPERATION.
HOPPER SWINGS
EITHER DIRECTION13-00-0092
ROCK ENGINEERED MACHINERY CO. INC.
-ST
Single Phase GREASE
LABYRINTH SEAL13-00-0217LUBE OIL IN
LUBE OIL OUT
IMPORTANT WARNING: DO NOT OPERATE THIS
CRUSHER UNLESS THE DRIVE GUARD SAFETY
SWITCH IS PROPERLY CONNECTED TO PREVENT
OPERATION OF THE CRUSHER MOTOR WHEN THE
DRIVE GUARD IS OPEN. Safety switch must be
interlocked to the main drive motor. This safety
interlock prevents the crusher from starting if the
belt guard were inadvertently left open, providing
redundancy to existing safety procedure(s). When
working on the crusher ensure that all lock out/tag
out procedures are followed correctly. Be advised,
the belt guard safety switch is not designed to
replace your company’s existing lock out/tag out
procedures. Always follow your safety protocols to
avoid bodily injury.
Figure 4: The hopper lid moves in either direction and the
safety stop allows the operator to position the lid.
If any of the safety stickers are damaged, removed,
painted over or otherwise obscured, it is the
owner’s responsibility to replace them promptly to
insure continued proper and safe operation of the
machine.
If your REMco crusher has stickers that are damaged
or you need replacements, contact our Parts
Department, Ms. Lupe Chin or REMco’s toll free
number (800) 782-2411 for detailed information on
how to purchase new stickers. If you have technical
questions, contact our Technical Manager, Mr. Jim
Trinkle.
Parts Manager | Lupe Chin
lchin@remcovsi.com |Cell: (925) 605-8603
Technical Service Manager | Jim Trinkle
jtrinkle@remcovsi.com |Cell: (925) 409-0003
Toll Free (800) 782-2411
crush@remcovsi.com
DANGER: STAND CLEAR OF HOPPER WHILE LIFT CYLINDER IS IN OPERATION. HOPPER SWINGS EITHER DIRECTION
Figure 5: Ensure that the drive guard is closed prior to running.
IMPORTANT WARNING: DO NOT OPERATE THIS CRUSHER UNLESS THE DRIVE GUARD SAFETY SWITCH IS PROPERLY CONNECTED TO PREVENT OPERATION OF THE CRUSHER MOTOR WHEN THE DRIVE GUARD IS OPEN.
Service and Maintenance tips for REM crusher operators –!–This newsletter is produced for REMco users and its intent is to make your life easier! We want to hear what has been
happening with the REMco crusher in your plant . Send us your questions, comments and job stories today!
Rock Engineered Machinery Co. Inc.
263 S. Vasco Road, Livermore, CA 94551
Tel (925) 447-0805 • Fax (925) 447-7038 • www.remcovsi.com
General Manager | Kevin Cadwalader kcadwalader@remcovsi.com
Marketing Manager | Chalin Luizinho cluizinho@remcovsi.com Technical Service Manager | Jim Trinkle jtrinkle@remcovsi.com
National Sales Manager | Terrence Costa tcosta@remcovsi.com Central Regional Manager | Mike Howell mhowell@remcovsi.com Eastern Regional Manager | Dana Stephens dstephens@remcovsi.com
Parts Manager | Lupe Chin lchin@remcovsi.com Chief Financial Officer | Rich Lustig rlustig@remcovsi.com
COPYRIGHT © REMco MMXVIII ALL RIGHTS RESERVED
Announcements
Daniel Ramirez is REMco’s new Northern California Sales
Representative. Daniel comes to us with more than 25 years’
experience in the minerals processing industry working at the
plant level and sales positions for consumable wear components
and screen media.
Daniel Ramirez – Northern California Sales Representative
Email: dramirez@remcovsi.com Cell: (925) 409-0326
Dan Jaques is REMco’s new Southern California Sales
Representative. Dan comes to us with more than 10 years’
experience in the aggregate and mining industry providing sales
and application expertise for capital equipment and consumable
wear components.
Dan Jaques – Southern California Representative
Email: djaques@remcovsi.com Cell: (951) 821-5532
Daniel Ramirez
Dan Jaques
We are very pleased to announce the following editions to REMco’s sales team.
Both these professionals have the knowledge and integrity to help you solve your processing
challenges. The rock never wins you do!
