A) General Introduction

B) High Speed Purlin Roll Forming Machine Main Components

1. Hydraulic Uncoiler with Coil Car

2. Flattening Station

3. Punch Station

4. Main Roll Forming Line

5. Fly Cut

6. Power Supply & Control System

C) Roll Forming Machine Layout Flow

D) Detailed Description of Each Roll Forming Machine Systems

1. General

1. Description : the high speed CZU Purlin Roll Forming Machine is able to produce CZU purlins for various sizes, easy operation, and high efficiency.

2. Machine speed : 30-40 m/min  

3. Voltage : 380V, 3 Phase, 50 Hz  

2. Raw Material

1. Material type : hot rolled steel coil, galvanized stee coil.

2. Metal yield strength : 235 MPa-550 MPa

3. Steel thickness : 1.5-4.0mm  

4. Purlin length : 1.5-12 mts

3. Hydraulic Uncoiler with Coil Car

1. Expanding type : motorized uncoiled and turnover, hydraulic expansion.

2. Loading capacity : 5 T  

3. Inner diameter : Ø 470-520 mm

4. Hydraulic pressure : 12 MPa

5. Motor Power : 5.5 kW

6. Coil car : included

4. Leveling Station

1. Leveling system : top 3 and bottom 4 rollers, with extra 2 couple of pinch rollers.

2. Feeding system : including feeding shaft and feeding rollers, its width is adjustable in order to suit for various steel strips.

3. Roller diameter : Ø 80/100mm

5. Punch Station

1. Punch type : Pre- punch, punch before roll forming 

2. Punch stations : 3 stations (each station for either dual or single hole)

3. Punching mold : Customized. 

4. Die material : Cr12, quenching

6. Main Roll Forming Machine

1. Roll stand : about 22 stations 

2. Roller material : GCr15 with heat treatment, polishing and galvanizing.

3. Main motor : 45Kw, three-phase asynchronous motor

4. Transmission type : Gearbox for each stand

5. Main shaft : 40Cr with heat treatment, polishing and galvanizing.

6. Machine frame : welded by iron plate, with flat planer finish machining. The levelness is measured by electronic level meter.

7. Size change : PLC control, fully automatic

8. Straightening Unit : including 10 sets special roller straightening unit and another 4 sets roller straightening unit to ensure purlin will not cause curve, bow, sweep or twist.

7. Fly Cut

1. Type : Post hydraulic mold cut, non-stop cut

2. Material of cutter : Cr12MOV, quenching.

3. Cutting mold : 3 pcs, according to customers request

4. Control : Cutting length, cutting pieces are controlled by PLC.

8. Power Supply & Control System

1. Cabinet quantity : 1 set. With ‘emergency stop’ switch for whole line.

2. Operation platform : HMI & Button, with English language display.

3. Control system : Siemens PLC 

4. Key components : Key components adopt Siemens bands.

9. Roller Conveyor, Auto-Stacker, Chain Conveyor

1. Type : CZU purlin auto stacking machine

2. Purlin length : 12 mts

3. Function : Purlin are stacked together by an automatic flip device, counted and arranged in a row according to the required number of program instructions.

E) Other Purlin Roll Forming Machines that NOVOTEK Made

• C Purlin Machine with Stacking Machine: Learn More

It includes a 5T hydraulic uncoiler, flattening machine, individual punch machine, main C purlin roll forming machine with fly cut, and automatic C purlin stacking machine. The machine's maximum speed could be up to 35-40m/min including hole punching. The purlin size could be customized, and the steel thickness could be up to 5mm. 

• Pre-Punch, Pre-Cut CZ Purlin Machine: Learn More

The Heavey Duty Fully Autoamtic NTK-CZ-350AQ Pre-cut CZ Purlin Roll Forming Machine adopts pre-cutting and pre-punching system which no need to adjust cutters as standard CZ purlin machine, and increase the machine operation a lot. By using a particular design, it can produce C Z U purlins up to 350mm and for maximum 3mm steel thickness. 

• Purlin Stacking Machine: Learn More

The C Z Purlin Stacking Machine is used to stack 100-300mm x 40-80mm C Z U profiles as pre-set quantity and layers. The machine could be customized according to customer's product size, and also can be equipped with your existing C Z purlin roll forming machine.

• Purlin/Tube Packing Machine: Learn More

The automatic C Z U Purlin and Steel Tube Packing Machine is designed to wrapping the steel products after stacked. Same as the above purlin stacking machine, the wrapping machine is also the subsequent auxiliary equipment of the NTK-CZ-300A Automatic CZ Purlin Machine.

F) Development History of NOVOTEK CZ Purlin Roll Forming Machine

1. Early Stage (1998-2005)

Initially, it is a single C shape purlin roll forming machine and a single size Z shape roll forming machine. The final product size adjustment is by spacers which needs a lot of operation time each time. They were focusing on small-scale production with low precision. Early machines primarily produced simple C and Z-shaped steel profiles, widely used in basic construction applications.

2. Semi-Automatic Advancement (2005-2010)

The first generation CZ interchangeable roll forming machine NTK-CZ-300 was first invented by NOVOTEK which both C channel and Z channel can be produced on one machine. The CZ profile interchange is by manually rotate some roller stations, and the purlin size adjustment is driven by electrical motor and operated through button. It is a significant movement of purlin roll forming industry and it increases the product capacity and efficacy a lot.

3. Fully Automatic Integration (2010-2015)

After continuous efforts, NOVOTEK first NTK-CZ-300A fully automatic CZ purlin roll forming machine is launched. It adopts PLC program to control the C & Z purlin interchange, as well as the size adjustment. This innovation increased the CZ purlin roll forming machine automation level and reduced the CZ machine operation time. Its automatic control program enabled precision control and the product quality and accuracy.

4. Smart and Information Factory (2015-now)

Modern purlin machines are equipped with advanced roll forming CSV file production control software and real-time monitoring capabilities. The incorporation of WIFI and big data analytics facilitates automated management and optimization of the C Z machine production process. Together high speed purlin fly cutting system, automatic CZ purlin stacking machine, automatic purlin wrapping machine, NOVOTEK now providing an entire solution for the smart C U Z purlin roll forming factory.

Novotek is aiming to improve various roll forming machine manufacturing capabilities including: U purlin, Sigma Profile, M Profile, Deck Sheet Roll Forming Machine, High Speed Roof Sheet Roll Forming Machine to meet customized production demands through advanced smart technologies.