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Automatic C purlin roll forming machine with post cutting and pre cutting
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Automatic C purlin roll forming machine with post cutting and pre cutting

1.【Machine Long Lifer】Rollers are made from Cr12 mould steel being quenched treatment, HRC58-60, CNC machine tooled to increase rollers precision.
2.【High Precision】Shafts for rollers are tooled by grinding machine at least twice. Rollers are CNC processed to ensure precision performance.
3.【Automatic & Easy Operate】Safe and easy to operate with Mitsubishi PLC touch screen operating system. Friendly man-machine interaction.
4.【Excellent Services】Technician can be sent to your factory to install the machine and train your workers. Engineers are able to service overseas.We supply lifetime services for our machines.
  • Zhongyuan 150-400 C purlin roll former

  • Zhongyuan

  • 8455221000



Brief introduction of automatic C purlin roll forming machine:

Technical Parameters of C purlin forming machine manufacture:

Machine model

C Purlin Roll Forming Machine

Operation way

Automatic machine




36 Months




More 15 years life time



Material thickness


Suiting materia

galvanized steel coils

Cutting material

Cr12 mould steel with quenched treatment         

Main motor


Forming rollers qty.15 stations
Shafts diameter90mm
Roller MaterialCR12 mould
Machine frameH450
Wall thickness45mm

Max. Coil Width

as per drawing
Yield Strength of Raw Material235Mpa
Panel Lengthas per requirement
Hydraulic station motor power11KW
Manual DecoilerMax. Capacity: 5000kgs
Control systemMitsubishi PLC and Frequency converter

C purlin forming machine components:

Double conic manual decoile1 set (Capacity: 5 tons)
Leveling device1 set (4 upper+5 down structure)
Punching device3 sets (It equip with punching dies,punching dies needs to change manually when sizes change)
Roll-Forming M/C1 set
Cutting Device2 sets(Pre cutting device and post cutting device)
Hydraulic station1 set
PLC control system1 set

Product Rack (un-powered)

1 set (two pieces, total length is 3 meters)
Tool Box1 set

Line working processing display

1) Making C-beam length ≥2.5m:

Decoiling the sheet→Guiding sheet → Leveling sheet → Punching →Measure length and Pre Cutting   →Roll forming→ Product to the run out table

2) Making C-beam length <2.5m:

Decoiling the sheet→Guiding sheet → Leveling sheet → Punching →Roll forming→Measure length and Post Cutting → Product to the run out table


1.Double conic manual decoiler:

1) Un-power; manual decoiler; max. Capacity: 5000kg

2) Suit for coil inner-diameter: 508mm

Double conic manual decoiler

2.Leveling device:

1) function.

Release the stub bar of coils, guiding it to leveling device, flatten the coil sheet .

When feeding the coil , the bucket press the stub bar of coils, guiding the coil into leveling device.

The leveling device with feeding rollers and leveling rollers. Feeding rollers can be adjustable to go up and down, which is easy to adjust the distance between leveling rollers and its angle of inclination.

2) parameter:

Material thickness :        3.0mm

Leveling Precision :        ±1.5mm

Leveling device

3.Punching system

1) Adopt welded steel frame, it has great rigidity.

2) The horizontal punch distance of the hole can be adjusted manually; vertical position is to be adjusted by inputting parameters into the PLC.

3) Punching die material: Cr12

4) 3 sets punching devices,It equip with many sets punching dies,it needs to change manually which punching holes requirement change.

Punching system

4.Roll-Forming M/C:

1) Roll forming system consist of machine frame, transmission parts and roll forming rollers,

2) Roller Material is CR12 mould, HRC58-60, with digital-controlled procession.

3) Shafts of rollers are tooled by grinding machine for two times to ensure the precision of final product.

4) Shaft diameter is 90mm.

5) Quantity of forming rollers: About 15 stations  

6) Transmission system:Gear box transmission system,motor drives.

  All working actions are controlled by PLC electric cabinet automatically.

7) Change size of purlin automatically. People key in and then the control system adjusts the different sizes automatically. Just push the button and the rollers will automatically adjust the required sizes without being adjusted by people.

8)  Suitable power voltage:380V/50HZ/3Phase

9)  Main machine motor power: about 5.5*4KW(Depend on final design)


5.Cutting Device

1) The length and blocks can be set by the buyer through the control panel, when reach the set length, the machine will cut the panel automatically. The cutting is finished under the power of hydraulic station which guarantees the precision of cutting.

2) Cutter blade material: Cr12 mould steel with quenched treatment

3) As the cutting length is 380mm to 6000mm.Machine will have pre cutting device and post cutting device together in one machine.

A. When making length≥2.5meters long C beam,use pre cutting device. All the sizes are using same pre cutting device,no need adjustment,it won’t have scrap. When the pre cutting device no need to use,the cutter goes up.

B. When making length <2.5meters long C beam, use post cutting device. Post cutting needs to do simple manual adjustment when making different sizes. It will having scrap as per time post cutting.When the post cutting device no need to use,it can push aside.

6.PLC Control System

1) This system uses Mitsubishi PLC to control the all working actions. Production quantity and each piece length will be automatically measured. It is convenient to control the roll forming machine.

2) Mitsubishi converter adjusts speed technology, realize the automatic production.

3)  Touch screen is input and canceled the working data.

4)  Friendly man-machine interface system can be set batches to the workpiece, length, quantity, etc.

5)  Encoder count, having function of count and measuring length.

6)  Suitable power voltage:380V/50HZ/3Phase (can be designed according to buyer’s requirement)

PLC control system

purlin plc


Product application of C purlin machine 

In order to satisfy various customer requirements, we design and manufacture customized C purlin machine in different specs, models and configurations.

C purlin roll former Application Example



Packaging Details of China full auto C purlin roll forming machine with gear box

1. Two *40GP container(under normal circumstances) for loading one set of C purlin roll forming machine with mechanical decoiler; 

2. The whole Wiped Anti Rust Oil, PLC controller covered by foam film; 

3.Spare parts and some small parts packed in plastic tooling box; 

4.All Components Fixed by steel wire with Container. Suitable for long time sea shipping. 

Delivery Time

Machine ready within 150 days after getting 30% deposit and confirming contract details from buyer and sellers.



Steel Coils and Sandwich Panels
Contact Us Today


Contact Us For More Roll Forming Machine Detailed Information

You can contact us either through phone number 0086-13867521382 within our working hours, or send an email to zhongyuanforming@hotmail.com, or send an inquiry form to us using "Inquiry Now" option. Our customer representatives will respond as soon as possible.
Hangzhou Zhongyuan Machinery Factory — Roof Roll Forming Machine
 Add: No.228, Yongli, Nanyang Street, Xiaoshan District, Hangzhou City, Zhejiang, P. R.of China. 
 Tel: 0086-13867521382
 E-mail: zhongyuanforming@hotmail.com



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