High Speed Non-Stop Cutting C Purlin Roll Forming Machine

The non-stop cutting C purlin roll forming machine, also known as separated type fly-cut C purlin roll forming line, is particularly designed to produce C purlins in high speed. The actual running speed could be up to 30~40 m/min including hole punch and cutting.

Different with normal single purlin roll forming machine, the uncoiler, flattening station, main roll forming machine, and automatic stacking machine of this line are separated from each other. With pits between each machine components to storage the steel strip, the roll forming machine no need to beak the production when one of systems continually works.

Equipped with fully automatic production control system, the machine can produce C shape purlins with highly automation degree and in high size accuracy.

Profile Drawing of the C Purlin Roll Forming Machine

C Purlin Roll Forming Machine Flowchart

Decoiler → Flattening Station → Punching & Servo Feeding Station → Main Roll Forming Machine → Fly Cut → Automatic Stacking Machine  

Functional Description of Automatic C Purlin Machine Components

Decoiler: Can be a mechanical decoiler or hydraulic decoiler. ​It used to hold and decoil the entire steel coil roll, also to feed the coil strip to the main purlin roll forming machine continuously and at synchronous speed. 

Flattening Station: Used to straightening and flattening the galvanized steel strip so that it can be flat and smoothly pass through the punch machine and main roll forming machine.  

Punch & Servo Feeding Station:  Designed to automatically punch the hole and slot patterns according to the C Z product profile drawings, the punch cylinder numbers are customized according to customers' request.  

Main Roll Forming Machine: As the main part of a purlin roll forming line, it includes a certain number of roller stations to form the steel strip into required C Z U or Sigma shape. The quality of the roll forming machine structure, the experience of the roll forming machine designers, and the automation degree of the machine control are the key features of a successful roll forming machine.  

Fly Cut: Roll forming machine fly cut option can maximum increase the whole line speed as it doesn't need to stop when cutting the product. 

Automatic Stacking Machine: The C Z U Sigma shape automatic stacking machine is used to automatically stack the ready-made purlins into programmed numbers and layers. It can save at least two machine operators and also can ensure the whole roll forming machine works consistently in long production time.  

Detailed Specification of Non-stop C Purlin Roll Forming Machine Components

Hydraulic Decoiler

1) Expanding type: Hydraulic expanding

2) Decoil type: Motorized active decoil

Flattening 

1) Flattening system: Top 3 and bottom 4 solid shaft, plus extra 4 pinch shafts.

2) Guiding system: Including guiding shaft and guiding rollers, its width is adjustable in order to suit for various steel strips.

3) Shaft material: CNC machining, quenching with tempering heat treatment, finish turning, polishing and chromeplate.

Punching & Servo Feeding Station

1) Punching cylinders: 6 stations or according to the product profile drawings

2) Punch mold materials: Cr12Mov

3) Punch holes/ slot sizes: 16mm, 18mm, 26x14mm, 26x16mm, etc

Main Roll Forming Machine

1) Roll stand: 21 main stations 

2) Transmission type: Gearbox for each roller stand

3) Machine base: Welded by H500 plate, with shot blasting and heat treatment

4) Roller material : GCR15, CNC machining with heat treatment, finish turning, polishing and chromeplate. HRC 58-60

5) Main shaft: SAE 5140, CNC machining, quenching with tempering heat treatment, finish turning, polishing and chromeplate.

6) Main motor: servo main motor.

7) Size change: fully automatic by PLC

8) Purlin Straightening Unit:10 rollers special two axial straightening units plus 4 rollers axial straightening units to ensure purlin will not curve, bow, sweep or twist.

Hydraulic Fly Cut

1) Type: Adopt post cut, automatic cut to length, quantity, etc.

2) Cutter material: SAE-AISI D3, quenching.

Power Supply & Control System

1) Control cabinet: 1 set. With ‘emergency stop’ switch.

2) Control handle: 1 set, for jog control during machine testing and production.

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

Automatic C Z SIGMA Purlin Stacking Machine

1) Roller conveyor length: 12 meters

2) Stacking type: automatic over-turning and stacking the purlins according to programmed numbers and layers

3) Machine control system: PLC control, automatically synchronizing with the purlin roll forming machine. 

Other Purlin Roll Forming Machines that NOVOTEK Made

• NTK-CZ-300A Fully Automatic CUZ Purlin Roll Forming Machine: Learn More

The advanced NTK-CZ-300A is designed to produce 80-300mm C U purlin and 120-300 Z purlin with fully automatic C Z interchangable and fully automatic size change system. It is one of the typical and best sell roll forming machine in the CZ purlin industry.

• 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.

Application of C Purlin 

C purlin, sometimes also referred as U purlin, is a type of steel that has C shape section. Its raw material normally has hot rolled or cold rolled steel. The C purlin steel has good strength, good stability and high flexibility. It can bear a large bending and cutting force. Also, it is light weight and convenient for transportation and installation. 

• Construction Field: C purlin is widely used for construction work, mainly its used as the main structures of building support, such as beam, roof truss, etc. Its high strength and good stability ensures the building safety and stability. Also, C purlin could be used as decoration materials of partition and ceiling, etc. Besides, the C or U purlin also can be used as a steel platform and footpath.

• Machine and Manufacturing: Owing to its high strength and light weight, the C purlin is widely used to manufacture various machine parts, railway transportation carts, electronic equipment, etc. 

• Cars and Ships: C purlin steel structure also plays an important part in cars and ships manufacturing. It could be used to produce car structure, chassis, outfram, etc. Not only can it improve the whole structure strength, it also improves the weight and increases the efficiency.

• Engineering Field: In construction work like bridges, tunnels and overbridge, C steel purlin could be used as supporting structure to increase the construction stability and safety. 

• Other Field: Large galvanized C shape purlin also widely used in storage warehousing facilities, agriculture greenhouses, stadium, and other buildings and facilities. 

Installation, Operation and Maintanance of High Speed C Purlin Roll Forming Machine

1, The purlin machine buyer should provide proper tools, testing steel coils, manpower.

2, It is important to have a flat concrete floor to support the C purlin roll forming machine. Also, it should have the correct electricity power supply according to the machine's total power.

3, Layout the roll forming machine according to the operation manual.

4, Connect the electrical wire and put enough hydraulic oil to the machine hydraulic system.

5, Have the trail run according to the machine maintenance book, check the machine's working status and make sure its condition is normal.

6, Regularly lubricating the moveable parts, like the gearbox, roller sprocket, chains, etc according to machine manufacturer's instructions.

7, Termly changes the hydraulic oil so that it will be clean for the hydraulic systems.

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.