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1,350mm Aluminum 4-High, Non-Reversing Foil Mills

TWO (2) USED ALUMINUM 4-HIGH, NON-REVERSING FOIL MILLS DESCRIPTION

ROUGHING FOIL MILL (DISMANTLED)

Year of Manufacture  1970

Width  1,350mm

Mill Speed  900 MPM

Work Roll  220mm Diameter x 1,600mm Long

Back-Up Roll  660mm Diameter x 1,520mm Long

Rolling Pressure  500 Tons

Inlet Thickness  0.6mm Maximum

Outlet Thickness  0.008mm Minimum (Double)

Main Motor  DC 550 kW

Spool Size  500mm Diameter x 1,540mm Wide

Roll Doubling  N/A

Coolant Filter  1,350 L/min Maximum

AGC  Rolling Pressure, Speed & Tension

Remarks  Operation Stopped in 2000

FINISHING FOIL MILL (DISMANTLED)

Year of Manufacture  1970

Width  1,350mm

Mill Speed  900 MPM

Work Roll  220mm Diameter x 1,600mm Long

Back-Up Roll  660mm Diameter x 1,600mm Long

Rolling Pressure  500 Tons

Inlet Thickness  0.1mm Maximum

Outlet Thickness  0.006mm Minimum (Double)

Main Motor  DC 275 kW

Spool Size  500mm Diameter x 1,540mm Wide

Roll Doubling  Available, Renewed in 1994

Coolant Filter  1,350 L/min Maximum

AGC  Speed & Tension Renewed in 1994

Remarks  Operation Stopped in 2006

Pittsburgh 4-High Aluminum Rolling Mill

11.25” DIAMETER WORK ROLL x

28” DIAMETER BACK-UP ROLL x

70” ROLL FACE

PITTSBURGH 4-HIGH ALUMINUM ROLLING MILL

WITH BOTTOM HYDRAULIC SCREWDOWN

GENERAL SPECIFICATIONS

Material Aluminum Alloys, 1000, 3000, 5000 Series

Work Roll Diameter (Nominal) 11.25”

Back-Up Roll Diameter (Nominal) 28”

Roll Face Width 70”

Maximum Coil Width 64”

Minimum Coil Width 28”

Maximum Entry Gauge .020”

Minimum Exit Gauge .00025” Machine Design Capability,

Actual Production Based on Customer Finesse

Maximum Strip Width 67” Trimmed

Minimum Strip Width 31”

Maximum Coil O.D. 72”

Core Dimensions 20” I.D. x 22” O.D.

Mill Speeds 0/1,100/3,300 FPM @ 0% Extrusion

Strip Speeds 0/1,200/3,600 FPM with Extrusion

Reel Speeds:

Payoffs & Rewind 0/3,600 FPM @ 0% Extrusion

Extrusion Assumed 20% Maximum

Maximum Tension for Maximum Thickness 4,000#

Doubling Payoff Tension 698# Maximum Pull

51# Minimum Pull

Consisting of the Following:

Entry Cored Coil Handling• System

Single or Double Tension System• with Two-Speed Gear Reducer and DC Motors (Tension System Uses Spools)

Entry Bridle•

Thermal Shape Control with• Valves

4-High Hydraulically Loaded• Contact Foil Mill

Exit Components•

Recoiler System Using Spools•

Spool Transfer Equipment•

Exit Coil Handling System•

Roll Changer Equipment with• Hydraulics

Coolant Spray System for Shape• Control

Coolant Supply System•

Coolant Filter•

Hydraulic System•

Spare Work Rolls and Back-Up• Rolls

Electrical (500 HP, 500V DC for• Main Mill)

Hydraulics•

Engineering Drawings•

11.25” DIAMETER WORK ROLL x

28” DIAMETER BACK-UP ROLL x

70” ROLL FACE

PITTSBURGH 4-HIGH ALUMINUM ROLLING MILL

WITH BOTTOM HYDRAULIC SCREWDOWN

GENERAL SPECIFICATIONS

Material Aluminum Alloys, 1000, 3000, 5000 Series

Work Roll Diameter (Nominal) 11.25”

Back-Up Roll Diameter (Nominal) 28”

Roll Face Width 70”

Maximum Coil Width 64”

Minimum Coil Width 28”

Maximum Entry Gauge .020”

Minimum Exit Gauge .00025” Machine Design Capability,

Actual Production Based on Customer Finesse

Maximum Strip Width 67” Trimmed

Minimum Strip Width 31”

Maximum Coil O.D. 72”

Core Dimensions 20” I.D. x 22” O.D.

Mill Speeds 0/1,100/3,300 FPM @ 0% Extrusion

Strip Speeds 0/1,200/3,600 FPM with Extrusion

Reel Speeds:

Payoffs & Rewind 0/3,600 FPM @ 0% Extrusion

Extrusion Assumed 20% Maximum

Maximum Tension for Maximum Thickness 4,000#

Doubling Payoff Tension 698# Maximum Pull

51# Minimum Pull

Consisting of the Following:

Entry Cored Coil Handling• System

Single or Double Tension System• with Two-Speed Gear Reducer and DC Motors (Tension System Uses Spools)

Entry Bridle•

Thermal Shape Control with• Valves

4-High Hydraulically Loaded• Contact Foil Mill

Exit Components•

Recoiler System Using Spools•

Spool Transfer Equipment•

Exit Coil Handling System•

Roll Changer Equipment with• Hydraulics

Coolant Spray System for Shape• Control

Coolant Supply System•

Coolant Filter•

Hydraulic System•

Spare Work Rolls and Back-Up• Rolls

Electrical (500 HP, 500V DC for• Main Mill)

Hydraulics•

Engineering Drawings•

11.25” DIAMETER WORK ROLL x

28” DIAMETER BACK-UP ROLL x

70” ROLL FACE

PITTSBURGH 4-HIGH ALUMINUM ROLLING MILL

WITH BOTTOM HYDRAULIC SCREWDOWN

GENERAL SPECIFICATIONS

Material Aluminum Alloys, 1000, 3000, 5000 Series

Work Roll Diameter (Nominal) 11.25”

Back-Up Roll Diameter (Nominal) 28”

Roll Face Width 70”

Maximum Coil Width 64”

Minimum Coil Width 28”

Maximum Entry Gauge .020”

Minimum Exit Gauge .00025” Machine Design Capability,

Actual Production Based on Customer Finesse

Maximum Strip Width 67” Trimmed

Minimum Strip Width 31”

Maximum Coil O.D. 72”

Core Dimensions 20” I.D. x 22” O.D.

Mill Speeds 0/1,100/3,300 FPM @ 0% Extrusion

Strip Speeds 0/1,200/3,600 FPM with Extrusion

Reel Speeds:

Payoffs & Rewind 0/3,600 FPM @ 0% Extrusion

Extrusion Assumed 20% Maximum

Maximum Tension for Maximum Thickness 4,000#

Doubling Payoff Tension 698# Maximum Pull

51# Minimum Pull

Consisting of the Following:

Entry Cored Coil Handling• System

Single or Double Tension System• with Two-Speed Gear Reducer and DC Motors (Tension System Uses Spools)

Entry Bridle•

Thermal Shape Control with• Valves

4-High Hydraulically Loaded• Contact Foil Mill

Exit Components•

Recoiler System Using Spools•

Spool Transfer Equipment•

Exit Coil Handling System•

Roll Changer Equipment with• Hydraulics

Coolant Spray System for Shape• Control

Coolant Supply System•

Coolant Filter•

Hydraulic System•

Spare Work Rolls and Back-Up• Rolls

Electrical (500 HP, 500V DC for• Main Mill)

Hydraulics•

Engineering Drawings•

Ref. CGS81341

Cauffiel 4-High Aluminum Cold Reducing Mill

NEW CAUFFIEL 4-HIGH ALUMINUM COLD REDUCING MILL

GENERAL SPECIFICATIONS

Material Aluminum Alloys, 1000, & 3000 Series

Maximum Strip Speed 0 to 1,500 FPM (460 MPM)

Maximum Outgoing Reel Speed 0 to 1,500 FPM (460 MPM)

Entry Gauge Range 0.5mm to 9.0mm

Nominal Entry Gauge Range 6.0mm

Minimum Exit Gauge Range 0.3mm

Nominal Exit Gauge 0.5mm

Maximum Reduction Per Pass 3.0mm

Maximum Strip Width 1,350mm

Minimum Strip Width 500mm

Maximum Coil Diameter 1,830mm

Maximum Coil Weight 12 MT

Nominal Roll Diameters 1,000mm and 400mm

Roll Face Width 1,450mm

Core Dimensions for Light Gauges 505mm I.D. x 546mm O.D.

Maximum Rolling Speed 1,500 FPM

Automatic Continuous Tension Control Load Cells on Bridle Rolls for Payoff & Rewind

With Closed Loop at Payoff and Recoiler Reels

Uncoiler Power (Tension Reel) 1,000 HP

Mill Power 1,000 HP

Recoiler Power (Tension Reel) 1,000 HP

Electrical Required at Peak Load 3,500 kW, 4,700 HP

Main Electrical Input 50 Hertz, 600-Volt, 8,000 kW

Maximum Yearly Production 60,000 Tons

SUMMARY OF ITEMS

1. Spool Removal System

2. Pit Type Coil Car

3. Single-End Hydraulic Expanding Mandrel Tension Reel

4. Outboard Support

5. Peeler System

6. Passline and Automatic Tension Control Roll

7. Coolant and Strip Thermal Lubrication System

8. Aprons

9. 4-High Rolling Mill with Roll Bend, Automatic Gauge Control (AGC), Semi-Automatic Shape Control (SASC), Hydraulic Screwdown, Hard Bronze Lined All Steel Bearing Chocks, SKF and Tapered Roller Bearings, and Quick Roll Change System

10. Coolant System for Strip Lubrication and Stack Type or Equivalent Filter System

11. Plate Type Filter

12. Hood Exhaust System with Outside Fume Scrubber

13. Precision 3M Squeegee Rolls

14. Automatic Gauge Control (AGC) and Semi-Automatic Shape Control (SASC)

15. Exit Air Knife

16. Exit Passline Rolls and Automatic Tension Control Roll with Top Driven Threading Roll and Table

17. Recoiler Tension Reel with 508mm Precision Rolling Mill Hydraulically Actuated Drum, Hydraulic Pushoff, and Outboard Bearing Support

18. Outboard Support

19. Pit Type Coil Car

20. Belt Wrapper

21. Spool Loading Incline Swivel Table

22. Spools for Running Light Gauge Material and Annealing

23. CO2 Fire Prevention System

24. Spare Parts for Two (2) Years of Operation

25. Electrical

ITEM 1

Spool Removal System

The spool removal system will accommodate spools sizes as shown under the General Specifications.

The spool removal system works in conjunction with the pit type coil car. A hydraulic pusher system ensures that the spool rolls onto the ramp which stores up to three (3) spools.

ITEM 2

Pit Type Coil Car

The coil car will accommodate coils sizes as shown under the General Specifications. The coil car will be equipped with 762mm of vertical lift. A heavy-duty Vickers or Parker Hannifin hydraulic cylinder will be used for the vertical lift.

The hydraulic system uses a cat track for the hoses that furnish power to the coil car. The valves will be located near the uncoiler to operate the coil car up/down and in/out.

The coil car mounts within a large steel container (to be built by the customer) and will be mounted within concrete. At the end of the container will be a key hole type slot to allow the entire coil car to be removed quickly for maintenance.

The coil car wheels will be heavy-duty flange type to accommodate the weight as shown under the General Specifications.

ITEM 3

Single-End Hydraulic Expanding Mandrel Tension Reel

The tension reel will accommodate coil sizes as shown under the General Specifications. The expanding mandrel is a four-leaf wedge type design. The leaves will be machined to 508mm diameter (will reduce to 450mm and expand to 600mm). The face of the wedges will be hard bronze and bolted and doweled to the steel wedges.

The expanding mandrel will be supported by a large 300mm (approximate) diameter chrome-moly alloy forged steel main shaft mounted in standard tapered roller bearings with seals for lubrication. The expansion and collapse of the uncoiler will be with large hydraulic cylinder. The main shaft will be driven with enclosed herringbone type gears running in oil to accommodate the ratios and speeds as shown under the General Specification.

ITEM 3 - Single-End Hydraulic Expanding Mandrel Tension Reel (Con’t)

The gears are made from chrome-moly alloy steel. The teeth are precision machined. The gears are lubricated with a power lubrication system to assure that the gears and bearings are running in oil at all times. The power lubrication system consists of an AC driven pump with pressure switch. The bearings are also lubricated with the power lubrication system. The pressure switch will interface with the main controls for safety and diagnostics at the main control console.

The AC to DC SCR regenerative digital drive will be rated as shown under the General Specifications and Electrics.

A dual air filter system is provided for air cooling of the motors. This consists of large blowers with controls with interlock at the control console.

A heat exchanger for the gear lubrication system is provided. This system consists of necessary water filter, piping, gauges, etc.

ITEM 4

Outboard Support

The outboard support is designed to accommodate the weights and tension as shown under the General Specifications.

The outboard support is equipped with a large bearing assembly mounted on the exit shaft. The outboard support is heavy-duty, all steel construction.

The outboard support is actuated by hydraulic cylinder and will position in and out for coil loading.

ITEM 5

Peeler System

To peel heavy gauge or light gauge coils, the hold down rolls are used as a snubbing roll. The hold down roll also traps the rotating coil. The coil is rotated by the uncoiler’s DC regenerative drive.

A peeler blade and table combination will bend up the leading edge of the coil and position the coil upward toward the passline roll. A power driven hold down bend roll is used to bend the material further over the passline roll so that the material can be driven into the nip of the rolling mill. An additional roll mounted on the passline roll is used to help guide the material into the rolling mill. The driven roll over the passline roll with the driven uncoiler will drive the material to the work rolls of the rolling mill to start the rolling process.

ITEM 5 – Peeler System (Con’t)

This system allows for quick threading and eliminates the need of a 5-roll flattener, which can produce marks on the strip surface if one of the flattener rolls becomes marked due to gaulding.

ITEM 6

Passline and Automatic Tension Control Roll

The passline and automatic tension control roll will have a 300mm diameter. The passline and automatic tension control roll is mounted on an anti-friction pivot base with load cells on both sides to ensure accurate load cell readings.

The passline and automatic tension control roll is mounted in anti-friction bearing blocks with seals. The passline roll with load cells measures and controls tension with closed loop system with the main motors.

A digital tach generator is mounted on the roll to measure incoming line speed.

ITEM 7

Coolant and Strip Thermal Lubrication System

This system uses two (2) spray bars with nozzles located approximately every 50mm from nozzle to nozzle to control the amount of coolant sprayed on the rolls. Each nozzle sprays a maximum of four (4) (approximate) gallons per minute.

Individual spray on each nozzle is cycled to control the amount of coolant on a particular zone, which affects the thermal expansion of the work rolls and back up rolls ultimately controlling thickness. Control of all nozzles is done by observing the screen developed by the shape meter roll. For more details on this system, see Automatic Gauge Control (AGC) and Semi-Automatic Shape Control (SASC).

ITEM 8

Aprons

Aprons will be provided at the inlet and exit of the rolling mill to help guide the strip through the work rolls in the rolling mill.

The aprons are on a locking pivot to swing out for roll removal and are adjustable for roll grind

ITEM 9

4-High Rolling Mill with Roll Bend, Automatic Gauge Control (AGC), Semi-Automatic Shape Control (SASC), Hydraulic Screwdown, Hard Bronze Lined All Steel Bearing Chocks, SKF and Tapered Roller Bearings, and Quick Roll Change System

The housings will be made from high quality, heavy-duty, steel forged construction. The post area is approximately 305mm x 508mm (12” x 20”). The posts will have a safety factor of over 15:1 at the maximum separating force. The screwdowns will be low-friction hydraulics with electro-hydraulic servo-valves mounted on the cylinders.

The bearing chocks will be forged quality steel, precision machined. The wear side surfaces will be equipped with hard bronze. Viton type seals are provided to seal the lubricant. An Exxon No. 32 anti-stain, high-viscosity EP lubricant or equivalent will be used on the bearings, which is common on aluminum rolling mills.

Between the hydraulic cylinders and top roll chocks will be load cells to give operator data on the separating force.

A shape roll with spray headers and electric nozzles will be U.S. Industries or equivalent. An operator function pushbutton pad will be provided to control the spray nozzles. The pushbutton pad is fully wired for all of the valves in the spray headers. The operator will be able to see the display shape on the screen produced by the shape roll. Displays will consist of the following: thread mode, start coolant mode, stop coolant mode, subsequential output test, pulse clean mode, individual increase value, individual decrease value, pulsating, or constant.

Positive and negative roll bend will also be with pressure adjustable hydraulic cylinders to control roll bend if required. Roll bend is accomplished with separating hydraulic cylinders located beyond the centerline of the screwdown force. Roll bend is controlled at the control console.

The precision gap gauges will be totally enclosed to reduce the risk of coolant contamination.

The rolls will be made from chrome-moly forged alloy steel by the number one rolling mill roll manufacturer in the United States. The journals will be heat treated for the highest possible shock and torque. Generous radius will be provided at the back up roll and the driven work roll to prevent a high stress notch affect.

The universals will be gear type made by Amerigear from forged alloy steel, heat treated for the maximum amount of wear. The gear universals or drive shafts will be enclosed with seals for the recommended Exxon lubrication. Spindle supports will be provided to hold the spindles in position for quick roll removal. The shafts are double flat type construction for ease of inserting the rolls into the universals. The universals will be designed for large safety factors of torque and long life.

ITEM 9 - 4-High Rolling Mill with Roll Bend, Automatic Gauge Control (AGC), Semi-Automatic Shape Control (SASC), Hydraulic Screwdown, Hard Bronze Lined All Steel Bearing Chocks, SKF and Tapered Roller Bearings, and Quick Roll Change System (Con’t)

On the operator side of the rolling mill is a sliding platform car that allows the back-up and work rolls to be ejected or pushed out onto the platform car in a precision stable manner for quick roll removal after spindle clamping. This is accomplished with anti-friction precision slide and ball screw with pneumatic motor.

The rolls and spindles are driven with an enclosed, heavy-duty pinion stand running in oil. The pinion stand is made from heavy steel plate with precision helical gears running in oil. A sight system is provided to assure that the oil is at the proper level.

A small pump is provided to circulate the extreme pressure (EP) gear lubricant and assures that oil is reaching the gears and bearings. The helical gears will be made of alloy steel and heat treated for the maximum wear. The anti-friction bearings will be equipped with seals. A pressure switch is provided to assure that the lubrication pump is operating before starting the mill. Control is at the control console.

ITEM 10

Coolant System for Strip Lubrication and Stack Type or Equivalent Filter System

The stack type filter system uses a diatomaceous earth (DE) filter to separate the contaminates, which consists of metal and oxide particles less than one micron. Fillers earth can also be added, which is equipped with polar characteristics to filter even lower for polished aluminum strip. Twenty-five (25) microns is equal to 1/1000 inch.

A shape roll with spray headers and electric nozzles will be U.S. Industries or equivalent. An operator function pushbutton pad will be provided to control the spray nozzles. The pushbutton pad will be fully wired for all of the valves in the spray headers. The operator will be able to see the display shape on the screen produced by the shape roll. Displays will consist of the following: thread mode, start coolant mode, stop coolant mode, subsequential output test, pulse clean mode, individual increase value, individual decrease value, pulsating, or constant.

All seals with valves will be Viton. The nozzles will be brass threaded flat fan standard catalog.

The dual filter system consists of many centrifugal pumps to operate at pressures up to 70 PSI. The pumps are equipped with adjustable relief valves to operate at up to 60 PSI.

Cauffiel will provide all valves, filters, etc., and engineering for piping, including the large tank to circulate the coolant through the filters and coolant system. The filters will be equipped with a back wash system to use if necessary. The back wash system can be stored in an additional tank and used again.

ITEM 11

Plate Type Filter

This system will include the following:

Plate Type Filters (Sometimes Referred to as Stack Filters• or Tower Filters)

Kieselguhr-Diatomaceous Earth-Diatomite•

Somentor No. 35, Kensol, or Other Coolant Using Mineral• Oil/Kerosene Additives

All Filters Use Outside Tank and Mixer for Pre-Coat• Preparation

Engineering for Tank and Furnish Mixer•

FW-14 or Equivalent (We will recommend the best possible• grades to be used for the filter process, which depends on the coolant being used.)

Filter Cloth for Two (2) Years of Operation•

Control Panel: Allen-Bradley or Equivalent•

Body Feed Tank 312 Gallon with 380-Volt Mixer•

Manuals•

ITEM 12

Hood Exhaust System with Outside Fume Scrubber

Cauffiel will supply a hood over the rolling mill and a large aluminum blower and packing for the fume exhaust system. The aluminum blower is used to prevent the possibility of sparks or fire. We also apply the necessary packing in the large scrubber area to condense the fumes. Drainage of the liquid from the condensation from the fumes is at the bottom of the scrubber.

Cauffiel will provide all necessary engineering for the stack and fume system to be made by a reputable fabricator or by the Buyer from heavy gauge steel or aluminum using CO2 sensor nozzles.

ITEM 13

Precision 3M Squeegee Rolls

The squeegee rolls are used to produce a clean strip with minimum coolant. The rolls have a patented covering for long wear, especially at the sharp edges. The rolls are approximately 250mm in diameter and pneumatic actuated for pressure control and quick opening.

ITEM 14

Automatic Gauge Control (AGC) and Semi-Automatic Shape Control (SASC)

The automatic gauge control consists of a Measure Ray, ABB, or equivalent radiation gauge on the exit side of the mill. An electronic closed loop system will be provided whereby the direct gap control gauges work in conjunction with the outside radiation gauge. The final gauge is automatically recorded onto the touchscreen at the control console where gauge information data works in conjunction with a digital pulse tachometer. A full coil production report can be obtained if necessary at any office worldwide.

An inlet radiation gauge can also be provided to record this information for an additional cost. The radiation gauges are large C-frames that slide in and out of the rolling mill area for feeding the strip.

To assure good shape, a shape roll will be positioned below the passline while threading and is used to measure the individual tension at various zones across the width of the strip. The shape roll lifts upward to create a slight hump after threading. The shape roll is located between the exit passline roll and the rolling mill. This roll works on different tensions for each zone.

The tension for each zone is recorded on a screen so that the operator can adjust the rolling mill with the spray lubricant as the material is being rolled. The profile of the stand is well displayed as well as the status of the spray nozzles.

Thermal expansion of the rolls is controlled by pulsation or by turning on and off the nozzles.

Additional shape control can be obtained with roll bend while rolling if necessary.

ITEM 15

Exit Air Knife

To minimize the amount of coolant from being carried to the recoiler, an exit air knife with 3M roll will be provided, which operates from compressed air at a maximum of 100 PSI or 7 KGF/cm2. Standard shop clean air can be used to operate the air knife.

ITEM 16

Exit Passline Rolls and Automatic Tension Control Roll with Top Driven Threading Roll and Table

The exit passline rolls will be similar to the entrance passline rolls. The exit passline rolls will be 300mm in diameter, hardened and ground, and mounted in anti-friction bearings.

The bearing block will be mounted on a swivel type platform with load cell to measure and automatically control tension with closed loop to control motor torque.

ITEM 16 - Exit Passline Rolls and Automatic Tension Control Roll with Top Driven Threading Roll and Table (Con’t)

The top threading roll will be hydraulically actuated up/down and driven to facilitate pushing the material into the gripper slot or onto the drum with the belt wrapper. An additional roll is hydraulically actuated up/down and used to guide the strip to the recoiler drum.

A telescopic table is used to position the end of the strip into the gripper slot or at the belt wrapper.

A digital tach generator is used to display line speed and work in conjunction with the thickness gauge to generate coil thickness throughout the coil.

ITEM 17

Recoiler Tension Reel with 508mm Precision Rolling Mill Hydraulically Actuated Drum, Hydraulic Pushoff, and Outboard Bearing Support

The hydraulic drum, when expanded, is a full unbroken circle. A hydraulic gripper slot will be provided for heavy gauge passes without a belt wrapper.

The recoiler will be alloy forged steel construction. The hydraulic actuated drum is a three-leaf wedge type design. The leaves will be machined and ground to approximately 508mm in diameter.

The expansion and collapse of the recoiler is with a large hydraulic cylinder and rotary seal.

A hydraulic pushoff plate will be provided with hard bronze surface at the drum and bronze bearing blocks for the guide bars.

The main shaft will be 300mm in diameter (approximate) chrome-moly alloy steel at the forward bearing. The main shaft will be driven with enclosed herringbone type gears running in oil to accommodate the gear ratios as shown under the General Specifications.

The gear reduction is shown under the General Specifications. The gears will be made from chrome-moly alloy steel. The teeth will be precision machined. The gears will be lubricated with a power lubrication system to assure that the gears and bearings are running in oil at all times. The power lubrication system will consist of an AC driven pump with pressure switch. The bearings will also be lubricated with the power lubrication system. The pressure switch will interface with the main controls for safety and diagnostics at the main control console.

A heat exchanger for the gear lubrication system will be provided. The hydraulic system consists of necessary water filter, piping, gauges, etc.

The hydraulic pushoff will be precision machined to push off material at the drum. The pushoff plate will be hydraulic actuated with precision guided bars in a bronze guide system.

ITEM 17 - Recoiler Tension Reel with 508mm Precision Rolling Mill Hydraulic Actuated Drum, Hydraulic Pushoff, and Outboard Bearing Support (Con’t)

The AC to DC SCR regenerative digital drives will be rated as shown under the General Specifications and Electrics.

A dual air filter system will be provided for air cooling of the motors. This consists of large blowers with controls with interlock at the control console.

ITEM 18

Outboard Support

The outboard support is hydraulically actuated with a large bearing to assure accurate position and to prevent deflection under high tension.

The outboard support will be positioned hydraulically in/out for coil removal. The outboard support is a heavy-duty cylinder with positive stop.

ITEM 19

Pit Type Coil Car

The coil car will accommodate coils sizes as shown under the General Specifications. The coil car will be equipped with 762mm of vertical lift. A heavy-duty Vickers or Parker Hannifin hydraulic cylinder will be used for the vertical lift.

The hydraulic system uses a cat track for the hoses that furnish power to the coil car. The valves will be located near the uncoiler to operate the coil car up/down and in/out.

The coil car mounts within a large steel container (to be built by the customer) and will be mounted within concrete. At the end of the container will be a key hole type slot to allow the entire coil car to be removed quickly for maintenance.

The coil car wheels will be heavy-duty flange type to accommodate the weight as shown under the General Specifications.

ITEM 20

Belt Wrapper

The belt wrapper will be hydraulically operated in/out and around the drum. The sliding guide system of the belt wrapper will be mounted on heavy-duty rollers with sealed anti-friction bearings with an enclosed gib system.

The end swivel of the belt wrapper arm will be hydraulically actuated.

The belt tension cylinders are used to assure a good type wrap.

The wrapper belt will be approximately 6mm thick made from special high strength woven polyurethane material.

ITEM 21

Spool Loading Incline Swivel Table

To load the spools onto the coil car, a pneumatic actuated incline swivel table will be provided. The incline swivel table allows four (4) spools to be ready for loading onto the coil car. The swivel table allows one (1) spool at a time to be loaded onto the coil car by blocking the next spool.

ITEM 22

Spools for Running Light Gauge Material and Annealing

Approximately (100) spools will be provided. The spools can also be used during the annealing process.

ITEM 23

CO2 Fire Prevention System

The CO2 Cardox type fuel prevention system consists of many heat sensors and nozzles located throughout the rolling mill, including the ductwork, scrubber, stack, pits, etc.

The system can be actuated on individual zones or operated in its entirety with hand pushbuttons. The system is a combination of total flooding and/or local application. All areas will be protected in zones or simultaneously

ITEM 23 - CO2 Fire Prevention System (Con’t)

Actuation of the system will be by heat detectors, manual or automatic electric discharge stations. An alarm condition will cause a horn circuit to activate.

The control panel will be mounted in an enclosed NEMA 12 enclosure and has a programmable analog control panel with battery back up power, time delays, control delays for equipment shut down, and contacts for interconnection to a monitoring system. A step down transformer will be available to convert the available power to the necessary 120 VAC, 50/60 Hertz power for the panel power supply. All system wiring is low voltage 24 VDC. All cylinders will be mounted in a floor mounted rack with a wide track assembly to simplify maintenance requirements. An electronically supervised lockout valve will be provided to display the system during maintenance.

Many cylinders with necessary valves, fittings, piping, etc., will be provided to accommodate the high pressure CO2. All fittings and valves will be designed for 3,000 PSI and made from forged steel.

The heat sensors will be located on all of the bearing chocks and throughout the hoods and exhaust stack and scrubber system.

All nozzles will be located in the same area on an individual manifold basis to assure zone type or total system fire prevention.

ITEM 24

Spare Parts for Two (2) Years of Operation

Note: One complete set of rolls, chocks, and bearings are included with the mill.

(2) Back-Up Rolls with (4) Chock Assemblies

(6) Work Rolls with (8) Chock Assemblies

(1) Hydraulic Cylinder Assembly for Screwdowns

(2) Sets of Packing for All Hydraulic Screwdown Cylinders

(2) Flushing Valves for Servo-Hydraulic System

(1) Servo-Valve for Automatic Gauge Control

(3) High Micron Filters for Screwdown Hydraulic Pump and Tank Unit

Spares for DC Drives:

SCR's

(6) DC fuses for DC motors

(6) AC fuses for DC motors

Circuit boards which consist of:

(4) CPU Boards

(4) Firing circuit board/power supply boards

(4) SCR power packs for each size

Hydraulic Spares:

Miscellaneous cylinder packing

(2) pumps for mill

(2) pumps for coolant and lubrication system

(1) heat exchanger

(3) high micron filters

(8) extra valves and controls for shape control

ITEM 25 Electrical

All electrical controls will be to IEC and NEMA standards, including the main control console (central operator station), central control cubical, etc.

Necessary control cubicals will be mounted at the rear of the machine with volt/phase/cycle input as required.

An oil tight active TFT touchscreen interface will be provided for precise rolling operations and detailed diagnostics. The main OIT will be located near the mill to operate the uncoiler, hydraulic screwdowns, and hydraulic pump and tank units through PLC controls.

By touching the screen, a new set of controls and information can be brought up. Information that can be viewed at the control console includes the strip thickness throughout the coil, tension, line speed, incoming/outgoing gauges, and motor currents.

The operator control stations will include in the display:

Line speed•

Motor amps•

Roll gap readouts in precision digital increments from high• accuracy feedback devices

Automatic tension control throughout the coil•

Graph showing final thickness throughout the coil•

Separating force readouts from precisely calibrated load• cells

Diagnostics for easy troubleshooting and maintenance•

Status and controls of all necessary AC motors•

Status and controls of all necessary hydraulics•

All necessary lubrication and coolant systems•

In addition to the above main OIT with touchscreen, there will be other auxiliary heavy-duty industrial pushbutton stations as required to operate the peeler and other discrete devices.

The regenerative digital SCR drives will be the latest technology with self-diagnostics, AMP meters, volt meters, etc., to operate in a jog, forward, reverse, or continuous operation.

The electrics will consist of the following:

All DC motors will be to GE or• equivalent.

Power will be made available at• the manufacturers supplied main disconnect.

Enclosures will be NEMA 12 or• better. All panels will have ready access to internal components.

All terminal strips for• interconnecting wiring will be tagged or labeled at both ends with the same designations used in the wiring diagrams.

All items on the operator• consoles will be logically grouped and clearly labeled by engraved lettering.

The PLC will be GE or• equivalent.

The control hardware will be• supplied with 10% extra I/O points or four (4) empty card slots as a minimum.

• All software will be supplied on CD/DVD.

All electrical drawings will be supplied as hard copy and• as a CAD file.