Features of steel purlin

The steel purlin is processed by cold-rolling. The wall is thin and light in weight, with excellent cross-section performance and high strength. The material is Q195-345. The steel stringer is a secondary load-bearing member of the roof structure system that transfers the roof load to the steel frame. Our common steel purlins are classified into C purlin and Z purlin. What are their characteristics?

Features of c purlin

C purlin rolled by forming machine, the product surface is smooth, high dimensional accuracy, material Q195-345; Scope of application: C purlin is widely used in steel structure construction of purlins, wall beams, or can be combined into a lightweight truss, support Building components such as frames can be used for columns, beams and walls in mechanical light manufacturing; C purlin specifications: (100 × 50 × 20 × 2.5) – (300 × 75 × 20 × 3.0)

c steel purlin

Features of z purlin

In addition to high strength and saving steel, Z purlin is especially convenient and quick to install. The material is Q195-345. Scope of application: Z purlin is mainly used for purlins of steel structure construction, especially suitable for large slope roof. The specification of the Z purlin: (100 × 50 × 20 × 2.5) – (300 × 75 × 20 × 3.0)

z steel purlin

If you want to know more detail information about the c purlin machine and z purlin making machine, please feel free to contact with us.

Z shape steel purlin roll forming machine

The Z shape steel purlin is processed from hot rolled steel. Though it is thin and light, it owns a high strength and excellent performance. It is usually used in large steel structure workshop, and it is also available in roof trusses, light industrial machineries, and other structural components. Z purlin is more suitable than C purlin in wide-angle roof, because Z purlin owns a better section module in bending. I will show you more detail information about the Z shape steel purlin roll forming machine.

Profile and pictures of Z shape steel purlin

z shape steel purlinz shape steel purlin profile


Material: Carbon steel
Grade: Q235/Q295/Q345
Zinc coating: 60-275gsm
Width: 80-300mm
Height: 40-80mm
Thickness: 1.5-3mm

Parameters of z shape steel purlin roll forming machine


Rollers 18 Groups
Material For Rollers Cr15 steel
Material For Shaft Cr15 steel
Hardness For Heat Treatment HRC55-60°
Dalmeter Of Shaft 80mm
Frame Panel Thickness 20mm
Bottom Frame 360#H-section steel
Motor Power 22kw
Rolled Speed 16-18 m/min
Decoiler capacity 5 tons

z shape steel purlin roll forming machinez shape steel purlin roll forming machine

Metal z purlins roll forming machine

Metal z purlins for supporting either roof sheets or vertical wall cladding. Our metal z purlins roll forming machine can produce the accurate manufacture of purlins to virtually any length. This traditional well proven system of sheet support offers a high degree of strength, flexibility and weight saving over timber or hot rolled steel sections with ease of handling on-site and during installation.

Check the drawing profiles of metal z purlins

z purlin drawing

Benefits of z purlins:
Manufactured to exact length
Maximum strength and long life
Lighter, stronger and cheaper than equivalent timber purlins

Parameters of metal z purlins roll forming machine

Forming steps 19 rollers

Shaft diameter 90 mm

Design type Middle plate welded

Machine frame 400# H steel welded

roller material GCr12 steel

shaft material 40CR

Work speed 15 m/min

Transport By chain

Power of main machine 18.5 kw

Type of cutting Hydraulic

Cutting tolerance ±1mm

Cutter quantity 1 set

Working pressure 20MPA

metal z purlins roll forming machine

Applications of metal z purlins

It has the advantages of adjustable size and high compressive strength. It is widely used in automobiles, railway vehicles, building doors and windows, transportation, shelves, electrical cabinets, highway guardrails, building steel structures, containers, steel formwork and scaffolding, solar powered shipbuilding, bridges, Transmission towers, steel sheet piles, cable trays, agricultural machinery, furniture, storage, guide rails, keel steel, vegetable greenhouses, pipeline supports, municipal construction and other fields.

Quick adjustment CZ steel profile roll forming machine

The C & Z steel profile formed by this CZ steel profile roll forming machine have outstanding anti-bending property and are easy to install. They are widely used as the supporter wall in factory, warehouse. In addition, multiple profiles can be produced through quick adjustment. In the followings, i will show you more detail information about the machine.

Drawing profile of CZ purlins

CZ steel profile

Parameters of CZ steel profile roll forming machine

Forming steps:19 rollers

Shaft diameter:90 mm

Design type:Middle plate welded

Machine frame:400# H steel welded

roller material:GCr12 steel

shaft material:40CR

Work speed:15 m/min

Transport:By chain

Power of main machine:18.5 kw

Type of cutting:Hydraulic

Cutting tolerance:±1mm


Cutter quantity:1 set

Working pressure:20MPA

CZ steel profile roll forming machine

Features of c purlin

C section purlins have equal extensions on their sides, meaning they can be used in single spans. They are freestanding and stable, allowing them to be handled with ease whilst being stable in holding the structure. They can also be easily adapted for use in different sized buildings.

Features of z purlin

Purlins are horizontal beams that allow you to safely attach roof sheets to the building. They sit between the sheet and the building, acting as a support for the sheet. This ensures that the roofing is firmly attached and safely in place.

What is the c purlin machine

C purlin is automatically formed by c purlin machine. The c purlin machine can automatically complete the forming process of C purlin according to the given C purlin size or drawing profile.

c purlin machine
The C purlin machine is a single roll forming unit that can produce a variety of C purlins. The machine is mainly composed of passive loading frame, leveling device, punching device, cutting device after forming, hydraulic station, computer control system and so on. This machine adopts automatic flying saw punching and is easy to operate. C purlin products rolled by C purlin equipment have good tensile and bending properties, good straightness, fully automatic fixed length cutting, automatic punching, high degree of automation, quick and convenient installation, and can be used as large and medium-sized industrial and civil buildings. The main force structure, such as factory buildings, warehouses, garages, hangars, exhibition halls, theaters, stadiums, market sheds, load bearing load and wall support. Cold-formed steel is the main material for making lightweight steel structures, and is formed by cold-bending forming of steel plates or steel strips.
Applicable scope of C purlin: C purlin is widely used in purlins and wall beams of steel structure buildings, and can also be combined into building components such as lightweight roof trusses and brackets. In addition, it can also be used for columns, beams and arms in mechanical light manufacturing.
C purlins are divided into dozens of specifications according to the height, such as 100, 120, 140, 160, 180, 200, 220, 250, and 300. The length can be determined according to the engineering design, but considering the conditions of transportation and installation, the full length Generally no more than 12 meters.

CU prulin making machine

As the main force part in the construction, our CU purlin making machine can make different sizes CU purlin for you. This CU Purlin making machine,  can produce C shape and U shape purlins from 100-400mm of width and easily to change  spacers. Maximum thickness can be formed at 1.5-3mm. Also we can design this machine  to  work with any width of the purlins and main channels, automatically adjustable by PLC control or adjust handle wheel to change the sheet width.

The drawings of CU purlins

CU purlin profile

Main components of CU purlin making machine

Hydraulic uncoiler

1). Inside diameter coil is 450 – 550mm

2). Coil Width is 600 mm

3). Capacity:5 ton

5). Hydraulic expansion

6).Automatically feeding

7). Hydraulic, inner tight

8).Hydraulic power: 3 kw

hydraulic decoiler with car

Main forming system

1).Roller station:12 steps

2). Roller material:GCR12 Mov

3) .Shaft material:45# steel,Outer diameter: 80mm

4) .Transport:Transport by Gear

5).Forming speed: 8-10m/min

6) .Motor:22kw

7).With yellow safety guards

8) .Voltage: 415v 50hz 3phase

CU purlin making machine

Cutting system

1).Blade and mold material: Cr12 steel with quenched treatment

2).Cutting system:advanced hydraulic drive, automatic cutting

Control system

PLC control

Hydraulic system

1). Advanced hydraulic system

2). Power:7.5kw


Punching hole as drawing


1).One year, and we will provide the technical support for the whole life.

2).Training: the buyer should charge of visa, return ticket, food and accommodation overseas and USD100/person/day for salary.


Z purlin making machine

Z purlin can attach roofing sheets or wall cladding. Our z purlin making machine can make z purlins and ensure ultimate durability. I will introduce more detail information about the machine in the following.

A drawing profile of z purlin

z purlin drawingz purlin products

Picture and parameters of the Z purlin making machine

z purlin making machine

Forming steps 19 rollers
Shaft diameter 90 mm
Design type Middle plate welded
Machine frame 400# H steel welded
roller material GCr12 steel
shaft material 40CR
Work speed 15 m/min
Transport By chain
Power of main machine 18.5 kw
Type of cutting Hydraulic
Cutting tolerance ±1mm
Cutter Gcr12
Cutter quantity 1 set
Working pressure 20MPA

Manual decoiler

Inner Diameter:450-550mm Expand by manual
Outer Diameter: max 1500mm
Max Coil width:500mm
Capacity: 5T

Hydraulic system

Hydraulic oil 46#
Hydraulic power 5.5 kw
Cutting length As required

Control device

control By PLC
PLC language English and Chinese (or as required)
Touch screen 4.7 Inch
Function Automatic length and quantity measurement

Other spare part

Weight About 7.2 ton
Dimension 7800*1600*1500 (mm) L x W x H
Main body color Main body color
Voltage 380v/50hz/3phor as required)
Spare cutting blade One piece for profile
Fuse 2 pieces
Relay 2 pieces
Travel switch 2 pieces
Solenoid valve 1 pieces

The application of z purlin

Purlins are horizontal beams that allow you to safely attach roof sheets to the building. They sit between the sheet and the building, acting as a support for the sheet. This ensures that the roofing is firmly attached and safely in place.

C section roll forming machine

C sections are made from galvanized steel and can be used in conjunction with Z purlins and side rails for the same building. C sections can be used as an alternative to side rails, sitting on cleats between columns or on the face with the same section size as a Z purlin, they can cover bays up to 9M in length. They also have enough strength that they do not always require side rail supports or diagonal wires ties. The flat sections makes a C Section perfect for above doors / windows or a door frame.

Here is the drawing profile of c section

c sectionc purlin construction

A building with a brickwork base requires a closing section that can be easily fixed to without leaving a cavity. C Section is perfect for sitting on top of the bricks and blocks offering a solid base to build from. There are some detail parameters of the c section roll forming machine for your reference.

Forming steps: 16 rollers

Shaft diameter: 90 mm

Design type: Middle plate welded

Machine frame: 400# H steel welded

Roller material: Gcr12 steel

Shaft material: 40 CR

Working speed: 15 m/min

Transport: by chain

Power of main machine: 18.5 kw

Type of cutting: hydraulic

Cutter: Cr12

Working pressure: 20 Mpa

c section roll forming machinec section machine

C purlin machine

With the adoption of PLC control mode and AC variable-frequency speed regulation technology, our C purlin machine is high efficient for continuous producing purlines. Its raw materials are coiled steel sheets and its main components are decoiler, guiding system, leveling system, pre-cutting system, roll forming system, electric controlling system,hydraulic system, and bracket.

Some pictures of the c purlin machine

c purlin profilec shaped section channels roll forming machine

Features of C purlin machine

1. This machine is made up of welded steel. It uses processing technology to protect its integrity.
2. It has rational structure, strong carrying ability, and stable performance.
3. This machine has high forming precision and long service life because it undergoes high precision processing and heat treatment before chromeplate.
4. Components from famous brands ensure the whole performance and quality of our machines.
5. The C purlin machine can be operated by workers without special training because of its PLC control mode.
6. Easy to debug, low noise and high efficient.

Parameters of c purlin machine

Forming station 14 stations
Forming Rollers GCr15, heat treatment and hard chrome-plated ,HRC55-58
Main shaft material S45C, heat treatment HRC42Φ80mm
Leveling roller 5 rollers
Cutting sheet Cutting after forming, stop to cutting
Forming speed 0-18m/min
Producing speed 0-12m/min
Main motor power 15KW,Chinese famous brand
Transmission system 1.0 double line chains
Control system PLC Siemens brand
Dimension(L×W×H) Approx.10000×1400×1600 mm
Weight Approx.9500kg

Z purlin roll forming machine

Z purlin roll forming machine works in the same principle as a c purlin roll forming machine does for producing steel purlins for metal building systems, only the purlins’ shapes make difference.

Z steel purlins can be used for a variety of applications, but 90% for steel structural building system, and 10% for other usages (some people use z steel purlins as the supporting clip inside sandwich panels, while some others put z steel purlins on a samples racks etc).

z purlin drawingz purlin products

Brief data of the z purlin roll forming machine

Like c purlin roll forming machine, z steel purlin roll formers also is designed to produce the section channels of different sizes, but the change to make a different size z purlin is manual. Clients need to manually change the spacers installed between rolling tools, as well as the cutting dies.

Forming stations:20

Roller material: GCr15,heat treatment and hard chromer-plated, HRC55-58

Shaft material: S45C, heat treatment HRC42 with diameter is 80 mm

Punching hole: before forming

Forming speed: 18 m/min

Main motor power: 15 kw

Control system: PLC

z purlin roll forming machine

This type z purlin roll forming mahcine is suitable for the following situations

1. Production rate is high

2. Your country worker salary is high

3. You need the fully automatic Z purlin roll forming machine

4. Save the cost of professional workers to adjust machine

5. Save the workers cost of running machine

6. Save time of changing sizes

7. long time to use machine

8. You need gearbox as machine transmission method

9. You need to change the sizes within 5 minutes

10. You need machine usage time is around 10 years or more