Newsletter 19

ROLLING MILLS | Russula Newsletter No. 19 | November 2019
Russula supplied greenfield bar and
wire rod mill to Silat in Brazil
The main objective was to build a mill that has low
yield losses, high asset utilization and low conversion
costs. As a result, the mill layout, mechanical
and electrical equipment supply was based on
proven design concepts. The Silat and Russula
teams collaborated very closely on every phase of
the project, from the feasibility study to the equipment
design to the commissioning, leveraging joint
experience to construct a mill that is easy to operate
and maintain and minimizes spare parts.
Russula developed the original concept for the
Greenfield steel plant. The scope of supply included
basic and detailed engineering for civil works mechanical,
electrical and auxiliary installation, specification
development, electrical and mechanical
equipment supply, construction supervision, and
start-up support. In addition, Russula also provided
the water treatment plant. The steel plant complies
with all local environmental standards in Brazil
as well as in Europe.
Fed by a 90 ton/hr (cold charge) walking hearth
reheat furnace, the rolling mill includes a 20 stand
continuous mill with two outlets, one for the 8-32
mm straight reinforcing bar and the other for 5.5-
16 mm the wire rod. The smaller bar sizes are
produced in a four strand slitting scheme at high
speeds. The rod outlet includes a one 10-stand,
high-speed twist free finishing block fed from the
bar mill finishing stands.
The wire rod outlet features the latest of Russula’s
innovations for long product rolling technology.
The patented laying head design allows for more
consistent coil formation and rolling stability. With
this innovative technology Silat will be able to roll
at 110 m/s sustained speeds. Russula’s compacting
and handling system is completely automatic, designed
for a fast, sophisticated process. Integrated
encoders, sensors and advanced automation make
for reliable operation, easy trouble-shooting and
maintenance.
All rolling mill equipment was
produced in Europe to better
control the equipment assembly
from the headquarters office.
The Russula mechanical
team went through a strict selection
process to ensure that
experienced craftsmen with
rolling mill process know-how
guaranteed the equipment will
have longer service life and reduced
downtime.
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