Products & Equipment Pits & Quarries
Rockster Recycler introduces duplex crusher system

July 16, 2014, Fort Wayne, Ind. – Rockster Recycler North
America introduces its mobile, patented Duplex System, a track-mounted crushing
plant that allows the contractor to interchange an impact crusher with a jaw
crusher, and vice-versa, on the same chassis.

July 16, 2014, Fort Wayne, Ind. – Rockster Recycler North
America introduces its mobile, patented Duplex System, a track-mounted crushing
plant that allows the contractor to interchange an impact crusher with a jaw
crusher, and vice-versa, on the same chassis.

This capability creates a dual-purpose machine for a wider
range of recycle, demolition and aggregate crushing applications. Available in
the R1100/1200 impact/jaw models and the R900/800 impact/jaw models, the Duplex
System allows one crusher unit to exchange with the other crusher unit in
approximately four to five hours using an excavator. An overnight exchange of
crusher units on the plant by a maintenance crew means the plant can be on the
jobsite and ready to crush by morning. The R1100/1200 processes 280 to 350 tons
per hour; the R900/800 processes 120 to 240 tons per hour.

Rockster Recycler’s horizontal shaft impact crushers feature
two hydraulically adjustable swing-beams, as well as on-the-fly rotor speed
adjustment for accurate material sizing and fines control. A large rotor with
four-bar hammer can be positioned in two-high and two-low or all four-high
configuration. The hydraulically adjustable jaw crushers feature oversize
bearings and shafts and are reversible to easily remove uncrushables.

The plants’ drive system is located at the rear of the
machine, enclosed in a sound-proofed housing. For maintenance and service
purposes, the casing can be opened completely on all sides. The hydraulic pump
for all auxiliary drives, as well as the pump for the hydrostat, are driven via
a distributing gear unit, which is flange-mounted on the drive motor. The
hydrostat activates the crusher via a v-belt drive and allows adjustment of the
crusher speed, replacing the typical clutch. The bypass chute is adjustable,
allowing the discharged pre-screened material to be directed to either a side
or main discharge belt. This option can be controlled with an easy-to-use hand
gear. Both the main and side discharge belts are hydraulically operated and
fold for compact transport.