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“C” Purlin (100-300) mm Roll Forming Production Line (With Punching)

“C” Purlin (100-300) mm Roll Forming Production Line (With Punching)

I. Profile drawing: (according to confirmation by both parties)

II. Process flow:

Decoiler -----> Guide feeding ------> Leveling and straighten ------> Hydraulic hole punching ------> Hydraulic cutting ------> Roll forming ------> Rectify rollers -----> Output discharge table.

III. Components of the Machine Line:

1. Uncoiler :

Manual Unwinder: 5 T

1) Structure of pedestal, braking, mandrel holder, slider narrow and expanding

Composition: base, braking device, hollow support, slider, tensioner

2) Capacity of Uncoiler   : 5 ton (maximum load capacity of uncoiler: 5 T)

3) Max width                     : 500mm (maximum material width: 500mm)

4) Inner diameter for coil : Ф440mm-530mm (inner diameter of coil:


5) Out diameter                 : Ф1500mm

2. Feeding guide & straighten device:

1)  Hydraulic system for punching and pre-cutting device

2)  Device for punching and front shearing

3)  This device consisted by punching mould, cutting blade, oil cylinder and

hydraulic station (this device includes: 2 sets of punching dies, scissors, oil

cylinder, hydraulic station)

4)  Pre-cutting before roll forming which no need to change cutting mould.

5)  Material of punching and cutting blade: Cr12mov, quenched hardness 58 °

-62 ° (Material of punching and cutting blade: Cr12, quenching hardness

58 °-62 °)

6)  Power for cutting: Hydraulic power 7.5KW.

3. Roll Former:

1) Fit for raw material: Forming thickness 1.5-3.2mm, Q235, Q345 galvanized steel and hot rolled steel

2) Roll forming station : 17 stations

3) Rectify rollers            : 3 stations

4) Diameter of roller shaft  : Ф85mm (diameter of roller shaft: Ф85mm)

5) Material of roller shaft    : 45 # steel

6) Roller material            : Gcr15 bearing steel, forged and quenched hardness HRC58-62 ° (Roller material: bearing steel Grc15, forging and quenching hardness 58-62 °)

7) Roller process      : CNC lathe processed

8) Motor for height adjusting: 2 * 0.75KW (power of height adjusting host: 2 * 0.75KW)

9) Motor for width adjusting      : 1 * 1.5KW

10) Transmission                          : High strength Chain

11) Roll forming speed                 : 10-15m / min (not include punching & cutting time)

Forming speed          : 10-15 m / min (excluding punching and cutting time)

4. Unloading table:

1. Specification of unloading table: 3000mm x 2 pieces (to meet the

maximum specifications of profiles)

2. Unloading table structure: roller structure, square tube welding.

IV. Machine Picture:

Total Area for production line: 14m length x width 2.5m

Total weight will be about: 8T








Raw Material Type Galvanized Sheet, Hot Rolled Steel
Thickness 1.5-3.2 mm
Performance Speed Max. 15m/min
Uncoiler Type Hydraulic
Capacity 5 T
Main Machine Main Roller Station 17
Main Drive Hydraulic Motor or Servo Motor
Transmission Type Chain
Cutting Cutter Type Hydraulic
Cutter Material Cr12
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