Typical system requirements and proposed solutions:
Line 3: Coil Car Uncoiler Straightener Servo Feeder
![](http://mecon.com/wp-content/uploads/30000-lb.-Capacity-x-48”-Width-Coil-Handling-System-300x145.jpg)
Requirement: 30,000 lbs. x 48” wide coil feed system for steel
Maximum coil weight: 30,000 lbs.
Min/Max coil I.D.: 19 ½” -24 ½”
Max coil O.D.: 72”
Max coil width: 48”
Max stock thickness: (50KSI yield) .118” @ 42”
Max stock thickness: (90KSI yield) .078” @ 42”
Min stock thickness: .020”
Max progression: 24”
Max line speed: 47 SPM
System Configuration: Conventional Feed Line
Progression range: 0 to 999.99”
Min/Max line speed: 10-94 FPM
Power supply: 480 volt, 3PH, 60Hz
Air supply: 80 psi
Straightener with opening top to facilitate the cleaning of the rolls.
Proposed Solution:
Coil car model 300cc with powered top rolls.
- 30,000LBS capacity
- A coil car with power lift of 20″, 110” travel, hydraulic system common to uncoiler.
- Dual scissor stabilizer to support top of car when loaded off center.
Uncoiler model 300btj48 with optional side shift.
- Single spindle uncoiler, with threading / rewinding drive, and air brake.
- 4 segment mandrel with ramp style hydraulic expansion.
- Uncoiler side shift, 18″ of travel. The uncoiler is mounted on bronze bearings and is shifted sideways by a hydraulic cylinder for easy alignment of the coil to the process. Uncoiler may be shifted during processing or loading.
- The mandrel is 4 segments, with wedge style expansion and is hydraulically expanded/retracted. Id range 19″ to 24.5″, O.D. max. 60″ with coil car (optional 72″max O.D.)
Heavy Duty HD48 Threading – Coil over arm with power wheel. Peeler / coil breaker.
- The over arm clamps onto the coil to contain the coil end when the straps are cut.
- The wheel is powered by a hydraulic motor and drives the coil to thread the start of the coil to the input pinch rolls of the straightener.
- The coil breaker lifts to press the strip against a flattening block on over arm and thus de-kink the start of the strip. This allows easy threading of steel into straightener.
Powered Straightener model 5-4str48bu
- 11 hardened and ground rolls running on precision needle bearings,
- 2 entrance pinch rolls, 5.000″ diameter, close onto material to drive starting edge thru straightener, not required to change straightener settings for threading,
- 2 exit pinch rolls, 5.000″ diameter, open for threading, close for running,
- 7 straightening rolls, 4.000″ diameter, 4 lower rolls all driven, 3 upper rolls idle,
- Individual power adjust upper rolls, position shown on .001″ graduation counters.
- Straightener drive. Variable Frequency AC Motor control with AC induction motor.
- Speed 0-60 fpm. Infinitely variable.
- These drive systems give very smooth acceleration and deceleration with no sudden shocks to the material or drive components, and thus extend machine life and limit material marking.
- The drive system will be upgraded to 30 hp (to support the required feed/SPM requirement) to match the capacity of the straightener and the 30,000 lbs. coil. Material guidance
- Coil peeler and breaker guide material into straightener.
- Entrance vertical guide rolls to track the material.
- Exit ramp rolls support strip as it exits straightener and drops into loop.
![](http://mecon.com/wp-content/uploads/5-4str-straightener.jpg)
![](http://mecon.com/wp-content/uploads/600f-feeder-performance.jpg)
Requirement:
Material: Steel 70,000 psi
Thickness: 3/8”
Width: 8”
Coil weight: 10,000 lbs
Process speed: 34 fpm
Feed length: 8”
Press speed: 50spm
Pass line height: 46″
System voltage: 575v, 3-phase, 60 Hz;
Proposed Solution:
COILCRADLE – STRAIGHTENER: 200CCS18
- 6str18 straightener upgrade
- motorized straightener adjustment screw
- adjust side guide rolls side plate rolls
- drive upgrade to 20 hp
- laser loop control
- extra heavy duty threading
- end pivot threading table
FEEDER: 600F18 with Antibackup brake
- Floor base- power pass line adjust
- Screw adjust sideguide with offset adjust
Requirement: Cut to length system
Material: 16-26GA steel
Coil Weight: 20,000lb coils
Width Material: 28 ½” to 54″
Cut lengths: 6 ¼ to 82 1/2”
Floor space: 55ft
Coil loading beside uncoiler
Important Considerations:
Tight tolerance on length.
Out of square causes problems
Flatness
Rewinding of partial coils
Coil Handling streamline and automate
Stacking system, even stacking very important
Minimize marking.
![Feed line- Cut to length system- with stacker](http://mecon.com/wp-content/uploads/Feed-line-Cut-to-length-system-Uncoiler-decoiler-straightener-feeder-shear-CTL-line-A-300x188.jpg)
MECON Cut To Length Line with Conveyor Stacker system
Proposed Solution:
Coil car – 200cc with Coil keeper arms
- 20,000lbs capacity, 19″ vertical lift, 120″ travel
Uncoiler – 200m60
- 20,000lbs. capacity
- 60”, 4 segment mandrel with hydraulic expansion 18” to 22” diameter
- Overarm with idle wheel
- 100” travel base with tractor drive
- Overarm with idle wheel
- End Pivot, hydraulic lift threading table EPH 60 x 150
- The threading table is used to eliminate the need for the operator to carry the start of the material from the coil to the straightener .
- Extended entry conveyor with ramp .
- 2 sets side guide rolls with centering screw adjust .
- Coil centerline laser .
Combination Feeder Straightener – 4str60 .
- 11 hardened and ground rolls running on precision needle bearings,
- Bearings lubricated from centralized manifolds (hand lubricated)
- Entrance and exit pinch rolls; air actuated, lower rolls driven,
- 2 entrance pinch rolls, 4.000″ diameter, close onto material to drive starting edge thru straightener, not required to change straightener settings for threading,
- 2 exit pinch rolls, 4.000″ diameter, open for threading, close for running, servo drive with 575v to 440v transformer
- Flex system control HMI with I/O for shear control
- Exit side guide rolls with centering screw adjust
Shear – 08hs60
- MAXIMUM WIDTH 60″
- THICKNESS .080″ AT 60″ WIDE 60,000 UTS MILD STEEL
- THICKNESS 0.004″
- CYCLE TIME 2 seconds
Requirement: Uncoil 2 steel coils at the same time
Material: Steel 30,000 psi
Thickness: 20Ga
Width: 2″-15″
Coil weights: 1500 lbs
Process speed: 200 fpm
Press speed: 120spm
Proposed Solution:
Dual UNCOILER model T15M16
- CAPACITY 1,500 lbs. per spindle
- MAXIMUM WIDTH 16″
- COIL ID. RANGE 12″ to 21″
- COIL MAXIMUM OD 60” typical
- dual spindle uncoiler,
- 3/4 hp DC spindle drive on each spindle
- Drives are controlled manually for jogging the coil, and automatically by the loop controlers during run.
![](http://mecon.com/wp-content/uploads/Dual-Uncoiler1.jpg)
MECON model T15M16 Tandem spindle uncoiler with 2 complete 15M uncoiler spindles