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High Precision 7.5Kw Roll Slitting Machine Aluminum Coils Single Head Uncoiler Machine

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High Precision 7.5Kw Roll Slitting Machine Aluminum Coils Single Head Uncoiler Machine

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Large Image :  High Precision 7.5Kw Roll Slitting Machine Aluminum Coils Single Head Uncoiler Machine

Product Details:
Place of Origin: China
Brand Name: HRF
Certification: CE
Model Number: HRF
Payment & Shipping Terms:
Minimum Order Quantity: 1 set
Packaging Details: Naked cargo
Delivery Time: 100 DAYS
Supply Ability: 1set
Detailed Product Description
Coil Thickness: 1 ~3mm Control System: Automatic
Decoiler: Hydraulic Material Of Coils: Aluminum Coils
Motor Power: 7.5Kw Name: Roll Slitting Machine
High Light:

slitting line machine


metal slitting Line

High Precision 7.5Kw Roll Slitting Machine Aluminum Coils Single Head Uncoiler Machine




Automatic High-Precision Slitting Machine

Technical Specification


1.   Basic technical parameters of coils

a)Material of coils: Aluminum coils

b) coil thickness range: 1~3mm

c) coil width: 500~1300mm

d) Inner diameter of coils: ≥Φ508mm

e) Outer diameter of coils: maxΦ2000mm.

f) Max. coil weight: 20000Kgs

2. Working process

Coil-loading——single head uncoiling——Coil-head-feeding & shoveling——Double pinch rolls & 3-rollls leveling—head-cutting----Hole Accumulator(1)----Strip-aligning——Disc slitting——Scrap reeling——Hole Accumulator(2)——Pre-separator---belt tensioning machine——length measured roller——Separator & Recoiling——Coils-discharging——Hydraulic control——Electric control High Precision 7.5Kw Roll Slitting Machine Aluminum Coils Single Head Uncoiler Machine 0

According to relative standards, customer inspects machine quality.

Inspection Standards





Width tolerance


OD of coils


Camber tolerance


ID of coils


Hump of recoils


Max. coil weight

Max 20000kg

Slitting weight of each figuring

Min. 1200T

Min. strip width


Scrap width of each side



Less than 5% of strip thickness

Max slitting number

3mm, 15strips


Surface quality

Without flaws like edge fold, angle fold, scratch, oil dirt, roller print, crease.


3) User self-preparation:

a) General switch of electric power, electric wires, cables and conduits

b) Q=0.9m³/min,P=0.8MPa.

Air supply system: Air source Q=0.9m³/min,P=0.8Mpa

c) Lubricating oil, hydraulic oil

d) 24kg light steel rails for loading car and discharging car, guard rails





3.1 Coil loading car

1) Structure: Four wheels, car body made by welding

2)Driving motor: 2.2kw cycloid pin-wheel motor

     3)Up-down movement driving: hydraulic cylinder Φ200×700mm

     4) Up-down moving distance: 700mm

  1. Max loading weight: 20000Kgs
  2. EPC auto-center aligner and realized by the sensor and hydraulic motor

High Precision 7.5Kw Roll Slitting Machine Aluminum Coils Single Head Uncoiler Machine 1

3.2 Single Head Mandrel Uncoiler:

1)Working style: axial moving expansion by hydraulic cylinder driving Slanting slider  

     2)Uncoiling mandrel: Ф508×1350mm, for other coils of bigger inner diameter, put rubber sleeve on the mandrel.

     3) Expansion range: Ф460--Ф510mm.

4)Hydraulic cylinder for expansion: Φ140×100mm

5)Braking style: pneumatic pressure regulating brake

  6) applicable coil width:500~1300mm.

Max. coil diameter:2000mm.

Max coil weight:20000Kgs.

High Precision 7.5Kw Roll Slitting Machine Aluminum Coils Single Head Uncoiler Machine 2

3.3 Coil-head feeding & shoveling equipment

1)Structure: welding assembly with steel plates, up-down movement by hydraulic cylinder .

2)Two sets of Φ80×500mm hydraulic cylinder

3)Traction wheel: Φ250 × 400mm, NBR rubber wheel

4)Driving motor for traction: 2.2kw cycloid pin-wheel motor

5)Shoveling structure: welding assembly with steel plates, two tongue-shaped plates(big one to move up-and-down, small one to expand and contract)

6)Hydraulic cylinder for big tongue up-down movement: Φ80×400mm

7)Hydraulic cylinder for small tongue expansion Φ63×400mm

3.4Double-roller pinch feeding & Three-roller leveling equipment

1)Welding assembly with steel plates, double-roller pinch feeding the coil strip.

2)Feeding roller and leveling roller: Φ140×1300mm

3)Material of feeding roller and leveling roller:down roller: 40Cr, hard chrome plating, upper roller covered with NBR rubber

4)Oil cylinder for up-down moving of feeding rollers: two pcs, Φ80×100mm

5)Up-down moving of flattening rollers: by worm and worm gear, 2.2KW pin-wheel speed reducer.

6)The driving power of leveling rollers: 15KW AC frequency speed adjusting motor .


High Precision 7.5Kw Roll Slitting Machine Aluminum Coils Single Head Uncoiler Machine 3


3.5 head-cutting Equipment

To cut off the redundant heads or ends of steel rolled coils, here install one hydraulic shearing equipment for max.1300mm wide and 6mm thick sheet


High Precision 7.5Kw Roll Slitting Machine Aluminum Coils Single Head Uncoiler Machine 4


3.6 Hole Accumulator(1)

1)Structure: hole with cement walls, two pieces of turnover plate to more or less cover the hole, so as to accumulate some strip in the hole.

2)Hole dimension: 3.5mL×1.6mW×4m

3)Composition of turnover plate: to weld square steel pipes to set up a frame, lay wearable plastic plates on the frame; at the both edges, sliding roller respectively.

4)Overturning movement of turnover plate is driven by hydraulic cylinder (Φ80×500mm)

3.7Aligning equipment

1)Structure: vertical rollers to restrict the progressing position of strip, while horizontal rollers to press strip.

2)Vertical rollers: three pairs, Φ90×125mm, high-frequency quenching

3)Horizontally press roller: Φ100×1300mm

4)Hydraulic cylinder for up-down moving of press roller: Φ80×100mm

5)To adjust one side of vertical rollers by double lead screws with adjusting range: 500-1300

3.8Disc slitting Machine

1)Structure: round disc slitting  and the spindle is installed on support stand.

2)The spindle to install disc cutters: Φ180×1300mm

3)Material of the shafts: 40Cr, forging and tempering, medium-frequency quenching, hard chrome plating, fine polishing.

4)Disc slitting blades: D300×d180×T10mm

5)Material of disc cutter: 6CrW2Si, hardness after quenching HRC56-58°

6)Driving style: 55KW DC motor, matched with speed reducer, gearbox and universal joint.

7)Control on DC motor: Eurotherm 590 controller,made in Parker,USA brand

8)Pressing-down of shearing spindle: 2.2KW cycloid pin-wheel motor with worm gear box

9)To change disc cutter: hydraulically (Φ63×450mm)driven, one stand of the disc shearer outward move until disc cutters can be installed

10)slitting speed: ≤80m/min

  1. slitting width accuracy:+/-0.03mm
  2. Slits:15 slits for 3mm

3.9Scrap reeler

1)Structure: wo scrap reelers, with one on each side of the slitting line

2)Each reel: Φ450×350mm

3)Each reel is driven by 3KW motor under frequency control, slip is realized by friction wafer

4)Scrap-discharging style: hydraulically drive the scrap creel shrink, then can take scrap bundle down.

5)Scrap collecting style: hydraulically drive the creel to come-and-go

3.10Hole Accumulator(2)

 The same with accumulator (1)

3.11Pre-separator and Belt Tensioning machine

1)Pre-separating shaft: Φ75x1350mm

2)Pre-separating discs: Φ180×3mm, 65Mn quenching treatment

3)Manually move outward the stand of one side up to be able to install pre-separating discs

4)The pressing-down strength is done by two Φ80×150mm hydraulic cylinders, and adjustable.

5)Balanced length-measuring roller: Φ320×1350mm, roller chromed

6) form of damping: belt tensioning machine

Usage and theory of the belt tensioning machine:

1) it is installed before recoiler in the whole line and which is composed of different materials and special belts with the difference in the coefficient of friction

   2)The friction resistance is occurred by the inner face of the belt and the steel-made slidings which functions the sheet anti-tension and make the recoiler more tight and not cause the scratch on the surface of the sheet

  3) the special belt is separated into many slits and can be extended differently and singly by the idler and make the the strength of strips reeled averagely.The tensioning strength is produced by adjusting the hydraulics pressed down,therefore anti-tension can be adjusted according to the different material or material thickness .

  Advantage of the belt tensioning machine

1) It can make the coil reel tidy and tight and less fault in ply

2) It can avoid the scratch on the surface of the sheet while the sheet and belt moves synchronously .

3) The special circle belt ,installed directly on the idler with cycled cooling units inside and it can keep cooling status

4) It is easy to adjust the strength of the belt manually according to different thickness

3.12Recoiler and Separator

1)Gear drive by gearbox, expansion and clamping of recoiler is driven by hydraulic cylinder through slanting slider.

2)Recoiling shaft: Φ210×1300mm(width of recoiling block)

3)Recoiling block: Φ508×1300mm

4)Strength for expansion of recoiler: hydraulic cylinder Φ160×100mm.

5)The support bracket of recoiling shaft: steel structural component, hydraulic cylinder Φ80×350mm

6)Strips-separating shaft: Φ95×1300mm

7)Separating discs: Φ180×3mm, 65Mn quenching treatment

8)Pressing-down the separating shaft: hydraulic Φ80×300mm, strength adjustable

9)Recoiling power: DC 75KW motor

10)DC motor control: Eurotherm 590 controller

11)Recoiling speed: 0-- 80m/min adjustable

12)Max recoiled coil weight:20000kg

3.13Coil-discharging car

1)Structure: four wheels, car body by welding

2)Driving motor: 2.2KW cycloid pin-wheel motor

3)Up-down movement driving: hydraulic cylinder Φ180×500mm

4)Up-down moving distance: 700mm

5)Max. loading weight:20000kgs

3.14  Others

  • Hydraulic system

One set of hydraulic station, control valves, oil pipelines

Pressure : 16Mpa

 Power: 7.5KW-4(Ⅵ)

 Oil volume of oil tank: 450L

2)Electric system

 2 sets of Eurotherm590 DC speed control cabinets

 Two operations cabinets.

 Power source: 380V, 50Hz, 3ph or according to the customer’s local standard like 440v,60Hz.3Ph etc


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