LONG PRODUCTS BULLETIN - SMS Meer GmbH

CS mill stands
Convertible stand. The core technology of the continuous mill is
the innovative SMS Meer CS stand design. Made of fabricated and
non-cast components, this design merges high rigidity with low
weight and reduced manufacturing and operational cost.
Benefits of the CS design
n Closed-type housing and small window design made from
rolled slab steel, 50 % higher yield point, free of inclusions
and shrink holes for the housing material (compared with
conventional cast steel), i.e. higher wear resistance
n Compact, simple and rigid stand design due to
FEM-optimized design and prestressed tie rod system
n Limited deflection under rolling loads due to improved
mill spring values
n Improved stand stiffness compared with housingless
(HL) stands, especially for the vertical rolls
n High screw-down accuracy due to zero-gap calibration
(zeroing)
n Modular design, suitable for universal, horizontal and
vertical mode
n Different stand types completely interchangeable
n Each stand is shiftable for use of multi-grooved rolls
(max. 1,500 mm)
n Increased diameter ranges for roll redressing,
i.e. longer roll life
n Use of different roll barrel lengths possible by easy exchange
of the tying elements of the housing parts
n Short changing time through pre-adjustment of rolls and
guides in the preparation area
n Possibility of easy exchange of single housing parts in case
of wear after long operating time, due to identical and
interchangeable parts
n No additional coupling during stand change through
automatic media couplings
n Individual or synchronized adjustments for top and bottom rolls
n Hydraulic balancing of top roll
n Backlash-free axial adjustment of top roll
n Integration of roll-pass control or mechanical adjustment
system possible without major modifications
36 Newsletter No. 3/2009
Long-product mills
Compact stand.
Finishing area
Cooling bed and straighteners. The cooling
bed is a combination rake-type and
chain conveyor and has a quick delivery
system for lighter products. The rake-type
initial area ensures proper material straightening.
The chain conveyor area is equipped
with water spray cooling, operating in the
low temperature range, to improve the capacity
of the cooling bed. The cooling bed
length is (82 m) 270’ and it is (22 m) 72’
wide.
The single-line horizontal straightener is
of cantilever design of the newest generation.
The machine is equipped with eight