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Overview
Dassnagar
designs and builds Slitting lines of superior quality
- suited to processing of hot
and cold rolled steel, black plate, stainless steel, nickel and other
alloys, non-grain oriented silicon steel, aluminum, copper, brass, and
painted, plated or polished metals. Slitting lines
are available as single/double
loop, vertical lines, and super high speed, tight-line systems
processing metal from fin stock aluminum to 5/8"
steel. Multi-blanking lines with slitting
and shearing options
are also available, in collaboration with RED
BUD.
The success of
our Slitting Line is based on reliable performance of the machinery
components. Proven designs, such as our precision single and
double
eccentric slitter heads, consistently permit slitting, to the highest quality
and accuracy standards.
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Eccentric Slitter
The
heart of a Slitting line is the
Slitter
performance. The most important factor affecting the long-term
accuracy of Dassnagar slitters
is its double eccentric arbor design. In
this configuration, the separating forces of slitting are absorbed
by the housings instead of the adjusting mechanisms. The
tolerance on the slitter arbors i.e. parallelism and roundness are in
microns, resulting in consistent slitting with repetitiveness, even
after 5 years in continuous operation.
Both
the arbors are supported on preloaded tapered roller bearings, eccentric
sleeves, and robust housings which virtually eliminates any
horizontal or vertical movements. As a result of this sophisticated
design,
Dassnagar slitters operate over
long productive lives with minimal endplay and run-out accuracies.
Quick change of Slitter head
A
mechanical arrangement is provided for quick change of slitter head
reducing 'downtime' significantly. Upto four spare slitter heads can be accommodated
by the system.
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Coil Handling Equipment
Dassnagar provides a variety of productivity
and quality enhancing components that can
provide cutting edge in today's increasingly tough business scenario. They
may be used in new lines or retro-fitted to existing ones. These products
reduce downtime for coil maneuvering, for example a coil handling system may
include a turret type
unwind or a rewind, coil down enders and
conveyors. Auxillary equipment may be floor or pit mounted
coil cars, powered
turnstiles,
thread assisting systems, frictionless tensioning devices like belt
bridle tensioning system and scrap handling equipment like scrap
chopper,
scrap baler,
scrap winder. We also offer overhung/stub and cone hydraulically expansible
mandrels
as spares for all strip thickness and width.
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Edge-Trimming
Dassnagar
also manufactures edge-trimmers. The edge-trimmer heads can be
injecta-mounted, inter-changeable with the slitter heads or can be
built into dedicated edge-trimming lines.
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Quick Change Systems
Dassnagar quick change systems like
automatic tool changer,
slitter head change, enables reduction of down
time enhancing productivity. A good example is our Belt Wrapper which
automatically initiates wrapping on the mandrel without gripping and
bending the tail. Coupled with poly-urethane mandrel sleeve,
the belt wrapper protects till the last wrap end of the strip
thereby eliminating wastage of the tail material. Our Scrap
Ballers,
Choppers and Winders are proven scrap handling
systems that provide processors with efficient scrap handling.
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Dassnagar Advantages
- wide processing range 0.10 to 15
mm, 400 to 2500 mm, input coil
wt 40 Mt for
strips, 40 to
60µ for foils,
- suited to CR, HR,
GP, CRGO,
foils and non-ferrous
metals like aluminum, brass,
copper and more,
- two speed line for different thickness range (optimise the ratio
of electrical cost to productivity)
- automatic strip threading and sleeve removal,
- fully automatic coil peeler for precise feeding of the coil
leading end into the flattener entry pinch roll unit,
- double eccentric slitter head with
quick head change mechanism,
- crop cut hydraulic shear
to square the lead end and for coil parting,
- frictionless tensioning device - belt-bridle tensioner
unit,
- minimal burr on strip edges due to high running accuracy of
knife arbors,
- constant distance between the last deflector roll and the
winding position of the recoiler due to continuous traverse of the
back tension unit during winding operation; hence absolutely
straight-edged recoiling (additional separator disks not
required),
- incorporate a variety of auxiliary component equipment like
scrap handling systems, side trimmers, edge guides, thread assist
systems, turret type unwinds/rewinds, coil cars, sophisticated
coil down layers and high production packaging systems,
- no manual interferences required because the scrap baller is pit
mounted,
- high degree automation enables precise process and production control,
- servicing within 48 hrs in any corner of the world,
- readily shippable spare parts,
- in house manufacturing of all equipment
to maintain quality.
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