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Year 1985, 1986, 1993
Brand
MANNESMANN DEMAG
Qty. 1 Second-hand skin pass mill
Mfc.
Mannesmann Demag Sack Built
Type
Duo Cold Rolling Mill – Non-Rev. Dia. 330 x 500 mm
Material
Carbon steel, cold rolled and annealed
Strip width
80 - 470 mm Thickness entry
Decoiler Modernised in 1986
ID
400 with segments 500 & 600 mm Spreading range
Strip tension
1300 – 65 daN Braking system
Braking torque
max. 1300 daNm De-coiling speed
Coil cross section
20 – 1880 mm² Coil weight per mm strip width max.
Coil weight 5.0 T Coil ID
Roll dia.
300 – 330 mm Roll length
Roll force
1850 – 2400 kN Min. roll force
Hydraulic roll adjustment Adjustment stroke 80 mm
Adjustment speed
1 – 3 mm/sec. Rolling speed
PLC system Siemens
Coiler
Coil ID
400 mm with segments
Strip tension range I
2500 – 25000 N Motor power
Strip tension range II
500 – 2500 N Motor power
Gear ratio
i = 14.66 Lubrication
Decoiler Modernised in 1986
ID
400 with segments 500 & 600 mm Spreading range
Strip tension
1300 – 65 daN Braking system
Braking torque
max. 1300 daNm De-coiling speed
Generator power
2 x 16 kW Motors in parallel arrengement
1 Motor can be decoupled by gear shifting
Generator revolution
0-405/2025 Transverse displacement
Modernisation in 1993
Hydraulic roll adjusting device
Adjustment by position and roll force-controlled hydraulic cylinder arranged on the stands.
Control via fast acting servo valves.
Strip thickness control
Consist of the electrical cubicle (1600 x 1600 x 600 mm) with all necessary supply units provided
for the following types of control
Position control Roll pressure regulation Return regulation (analog/digital)
Degree of skin pass measurement Degree of skin pass regulation
Qty. 2 Positioners Qty. 2 hydraulic-electric converters for measuring the rolling force
1 Exit guiding system (left side of the rolling mill)
The exit guide is equipped with the following devices
Base support with table top and places for tape thickness measuring device, tape greasing roller
and skin pass level measuring device, hydraulically adjustable folding table, hydraulically
operated crop shear with angled cut upper knife, loose deflection roll, bearing of the deflection
roll intended to accommodate a strip tension measuring device.
1 Oscillating cleaning device of the top roll
1 Oscillating cleaning device of the bottom roll Coiling station
1 Coiler shift gear
With 2 input shafts, helical gears, hardened and grinded, shafts mounted in roller bearings,
pneumatically operated gear shift stage for belt tension changeover, lubrication of the gear unit
by an attached oil lubrication pump, toothed clutches to connect the motors with the gear unit,
pneumatically operated disc brakes as idle brakes.
1 Take-up drum
In flange design, hydraulically operated, clamping device to grasp the beginning of the strip
separately controlled, cylinder with circumferential oil supply, cast steel attachment segments to
increase the diameter from 400 to 500 mm
1 Coil pushers
Hydraulically operated coil pusher with spring-loaded belt scrapers, attachment to the winding
gear, guide in round bars.
1 Strip pusher Hydraulically operated
1 Paper unwinder
For unwinding interlayer paper, winding shaft mounted in roller bearings, set up for tensioning
paper rolls, braked by a pneumatically operated disc brake
1 Coil lifting car
With hydraulically operated lifting and driving device as well as tilting device and movable pit
lock, coil holding device for narrow coils, hydraulically swiveling and hydraulically adjustable to
strip width.
1 Coil magazin
For holding 3 coils of max. width and min. coil diameter of 800 mm, coil magazine made of
welded construction anchored in the foundation and provided with a polyamide or wooden
support
2 Joint spindles
including rolls and pinion sleeves for driving the rolls, arranged between the pinion gear and
the rolls, support device for the joint spindles when changing rolls, the support is hydraulically
operated
1 Hydraulic balancing for the above roll installation unit
1 Cushioning plate arranged in a tilting gutter for coil cushioning
4 Wear strips for mounting in the stand windows
16 Wear strips for the chocks
1 Transfer tables of the unwinding deflection roll stand
Shortening of the table and renewal of the hydraulic cylinder as well as attachment of a console
to accommodate the skin pass degree measuring device
1 High pressure hydrauli aggregat
For supplying and controlling the adjusting cylinders, designed for an operating pressure of
250 bar, nominal pressure 315 bar,
the hydraulic unit consists of
oil tank, pump station and additional reserve pump, filter station and valve stand, the system is
internally piped, the valves are wired
1 Hydraulic aggregat with valve stand
To supply and control all hydraulic cylinders within the existing assemblies described above
(without unwinding station)
The unit is designed for an operating pressure of 100 bar, nominal pressure 120 bar and
consists of
oil tank, pump unit and additional reserve pump, filter station and ventlistand, control by
electro-magnet valves, the system is internally piped and the valves are wired.
This equipment is located in DE
Manufacturer | Mannesmann Demag |
Model | Duo Mill |
Year | 1985 |
Country | Germany |
Condition | Good |
Main category | Metalworking Machinery |
Subcategory | Roll Former |
ID | P30303080 |
Client type | Machinery dealer |
On Kitmondo since | 2007 |
Number of listings | 34 |
Country | Germany |
Employees | 11 - 50 |
Established | 2003 |
Last activity | May 30, 2023 |
Contact | Click here |