STEDMAN'S
GRAND SLAM™
IMPACTOR SERIES REDUCES
METAL REPLACEMENT AND
OVERALL OPERATING COSTS
AURORA, INDIANA — The Grand Slam Series of horizontal shaft
impactors from Aurora, IN-based Stedman uses high-chrome
metallurgy to significantly increase the wear life of machine components,
reducing metal replacement costs. Tackling a variety of applications from
aluminum dross and clay to floor tile and scrap carbide recycling, Grand
Slam impactors reduce material size more efficiently with maximum up time.
Their single drive design uses less horsepower per ton when compared to
dual-drive systems, lowering operating costs.
 The
Grand Slam Series consists of 10 high-production models with test capacities
ranging from 5 to 700 TPH. The impactor design incorporates both primary
and secondary aprons for maximum product control, eliminating the need
for high-maintenance grate bars and discharge screens that often clog.
The impactors' two-stage crushing action is designed to produce more product
on the first pass with reduction ratios up to 30:1, even while handling
large and slabby feed material.
A full-length rotor
shaft with 2, double-row spherical-type bearing assemblies features a
taper lock design to strengthen the rotor for highest reliability. The
rotor features either a 2-row, 3-row or 4-row breaker bar design, depending
on machine model size. A wedge locking design secures the breaker bars
in place and simplifies breaker bar servicing. The high chrome breaker
bars can be rotated multiple times before replacement, optimizing metal
utilization and wear life. The rotor lock table, a Stedman-exclusive,
facilitates breaker bar rotation and replacement, saving time and further
optimizing wear life. For unimpeded access to the crushing chamber, either
front or rear opening housings are available to meet customer system designs.
In conjunction with
the rotor, the Grand SlamT Series primary and secondary aprons make up
the impactors' two-stage crushing action for increased throughput. Both
the primary apron, where initial size reduction occurs, and secondary
apron, where final reduction takes place, are lined with interchangeable
3" thick tapered, high-chrome liners for maximum wear life. Both aprons
are manually adjustable from the external housing for precise gap adjustments.
For additional product control, an optional secondary apron spring bridge
assembly provides additional force to maintain gap settings yet allows
for retraction of the apron under extreme loads and immediately returns
to original setting.
Side liners of the
Grand Slam Series come in only 3 different shapes
- triangular, rectangular and square - and are interchangeable from model
to model to reduce maintenance and inventory costs. The 2" thick, high-chrome
liners are designed to withstand the abuse of impacting even the toughest
materials for long wear life.
A variety of optional
equipment is available for Grand Slam impactors,
so customers can outfit their machine to meet specific application requirements.
Apron heaters, installed on the feed chute and primary and secondary aprons,
minimize buildup when reducing wet and sticky materials. To minimize cross-color
contamination, customers can use the optional air cannon, which discharges
a blast of air into the crushing chamber to quickly dislodge material
buildup. Together with the cannon, elimination of ledges and minimal ribbing
allow for faster crushing chamber clean out. The optional variable-speed
drive allows for on-the-fly product gradation changes to enhance peak
operating efficiency.
As with all Stedman
products, the customer is encouraged to test each application before purchasing
a Grand Slam. Stedman uses only full-size equipment to test a wide variety
of materials to enable customers to select the best machine for the application.
With a sample of feed material, Stedman engineers will conduct an application
analysis and provide a confidential, written report of their findings
to the customer. Stedman can also produce an analysis by using one of
over 10,000 application reports on file.
Stedman,
the originator of the cage mill, is the leader in providing solutions
for size reduction needs. Stedman's full range of equipment includes vertical
and horizontal shaft impactors, cage mills, lump-breakers and fine grind
mills.
For more information or testing procedures contact Stedman, Sales Department, P.O. Box 299, 129 Franklin St., Aurora, IN 47001. Telephone: 800-262-5401 or 812-926-0038 or Fax 812-926-3482.
Click here for the PDF Literature.
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