CZ Purlin Forming Machines

CZ purlin forming machines are roll forming equipment used to produce C and Z shaped purlins from metal coils. Purlins are structural beams widely used in metal buildings and structures.

What is a CZ Purlin?

A CZ Purlin is a type of structural component used in construction and building applications, particularly in the framing of roofs and walls. Purlins are horizontal beams or members that provide support to the roof covering or wall cladding and help distribute the load of the building’s roof or walls to the main structural frame, such as columns or rafters. They are commonly used in metal building construction.

The term “CZ Purlin” typically refers to two different shapes of purlins:

  1. C Purlin: A C-shaped purlin is formed like the letter “C” in cross-section, with two horizontal flanges and a vertical web connecting them. C purlins are commonly used for roof framing and wall girts.
  2. Z Purlin: A Z-shaped purlin is formed like the letter “Z” in cross-section, with a pair of vertical flanges connected by a horizontal web. Z purlins are typically used as roof purlins, and their shape provides added strength and stability compared to C purlins.

CZ Purlins are made from various materials, including steel and aluminum, and they come in different sizes and thicknesses to suit the specific load-bearing requirements of a building’s design. They are essential components in the construction of steel-framed and metal-clad buildings, providing structural support for the roof and walls while also helping to maintain the overall stability and integrity of the structure.

CZ Purlin Forming Machine
CZ Purlin Forming Machines 12

Key Details of CZ Purlin Forming Machines

Key DetailsDescription
Machine TypeCZ Purlin Forming Machine
FunctionTo produce C and Z-shaped purlins from flat metal coils
Materials ProcessedSteel, Aluminum, or other metal materials
Forming ProcessRoll forming or cold roll forming
ComponentsTypically includes decoiler, leveling device, punching unit, roll forming unit, cutting unit, and control system
Profile ShapesProduces both C-shaped and Z-shaped purlins
Coil WidthAdjustable, depending on the machine’s design and capacity
Thickness RangeVaries based on machine specifications, typically ranging from 1mm to 3mm or more
Speed of ProductionVaries widely depending on the machine model, ranging from 10 to 30 meters per minute or more
Cutting MethodHydraulic or mechanical cutting systems
Roll Forming StationsMultiple sets of roll forming stations for shaping purlins
Control SystemPLC (Programmable Logic Controller) for automated operation and precision
Size and DimensionsVarious machine sizes available, depending on production requirements
Power SourceElectric, typically three-phase power supply
Safety FeaturesEmergency stop buttons, safety guards, and sensors for worker safety
UsageUsed in manufacturing and construction industries for producing purlins used in building structures
Customization OptionsMachines can be customized based on specific requirements
MaintenanceRegular maintenance and lubrication required for optimal performance
Manufacturer Support and WarrantyUsually provided by the machine manufacturer

Working Principle

  • Uncoiler feeds metal strip into machine
  • Forming stations progressively shape strip into C or Z profile
  • Cutting tool slices beams to required length
  • Output table stacks finished purlins

Main Components

  • Uncoiling unit
  • Straightening rolls
  • Accumulator
  • Forming stations with top/bottom blades
  • Hydraulic system
  • Cutting tool
  • Control panel

Types of CZ Purlin Forming Machines

Machine TypeDescription
Manual CZ MachineBasic model with manual adjustment for size changes
Automatic CZ MachineFully automatic adjustment of forming parameters
Double Layer CZ MachineProduces two purlins simultaneously
Customized CZ MachineCustomized to produce special purlin designs

Working Process of CZ Purlin Forming

The working process involves uncoiling the metal coil, feeding it through progressive forming stations to shape the C or Z profile, and cutting the beams to length:

  • The uncoiling unit feeds the metal strip into the machine through guiding rolls
  • Accumulator controls loop of material for stable feeding
  • The metal strip passes through forming stations with upper and lower forming rollers
  • Forming rollers have customized blades to bend the strip into C or Z shape through stages
  • Hydraulic system adjusts the space between rollers
  • The profiled purlin beam passes through the cutting station
  • Cutting blades slice the beam at preset length into individual purlins
  • Formed purlins are stacked on the output table

Main Aspects of CZ Purlin Forming

Material Feeding

  • Coiled steel or aluminum strip of thickness 0.7-3 mm
  • Max coil weight 5 tons
  • Uncoiler with mandrel for smooth unroll of coil
  • Accumulator controls feed loop for continuous production

Profile Forming

  • Up to 8 progressive forming stations
  • Stations have customized top and bottom blades
  • Hydraulic cylinders adjust clearances between rollers
  • Blades customized for specific purlin dimensions
  • Quick tooling changeovers for profile changes

Cutting & Slicing

  • Top and bottom cutting blades shear purlins at preset length
  • Servo motor synchronizes blade action
  • Length between 3-13 meters continuously
  • Individual purlin lengths of 0.3-9 meters

Customization Capabilities

  • Flexible adjustment of all forming parameters
  • Custom purlin sizes without blade replacement
  • Special hole punching or embossing if needed
  • Double layer machines produce two beams together

Technical Specifications

ModelProduction Speed (m/min)Finished sizes (mm)Material Thickness (mm)Power (kW)
Manual 10008-10100-300×50-120≤311
Auto 200015-18100-300×50-1500.7-237
Double Layer 30008-12150-250×80-100≤245

Suppliers and Price Range of CZ Purlin Forming Machines

SupplierLocationPrice Range
Factory AChina$10,000 – $100,000
Factory BIndia$15,000 – $120,000
Brand CEurope$80,000 – $250,000
  • Prices vary by production speed, purlin sizes, customization, and automation level
  • Chinese machines offer cost advantage
  • European brands provide high precision and durability
  • Expect bulk order discounts up to 20%
  • Additional cost for parameters like hole punching, embossing

Installation, Operation and Maintenance

StageDetails
Installation– Civil and electric work needed
– Trained technicians required for setup
Operation– 1-2 operators per shift
– Parameter settings through control panel
– Easy switchover between sizes
Maintenance– Daily oiling and cleaning
– Inspect blade condition weekly
– Replace blades annually or as needed
– Check hydraulics and electrics biannually
  • Installation takes 1-2 weeks
  • Comprehensive operator manual provided
  • Online service support available
  • Consumables include forming blades, oils, electrics

How to Select a CZ Purlin Forming Machine

Here are key considerations for selecting a CZ purlin forming machine:

Application Requirements

  • Type and dimensions of purlins needed
  • Production volume per shift/month
  • Level of flexibility for future purlin changes

Machine Capabilities

  • Size range of machine – min/max purlin depths
  • Material thickness handling capacity
  • Production speed to match volumes
  • Automation vs manual adjustment

Supplier Credentials

  • Experience in the industry
  • Clientele and reviews
  • Responsiveness to inquiries
  • Warranties and service support

Budget Constraints

  • Available investment capital
  • Desired ROI timeline
  • Expected operating costs

Understanding application needs is essential before comparing machine specs and supplier proposals.

Pros and Cons of CZ Purlin Forming Machines

ProsCons
– High production capacity
– Flexible size changes
– Low operating costs
– High initial investment 
– Regular blade maintenance
– Limited customization

Advantages

  • Single equipment produces entire range of purlin sizes
  • Manual to fully automated options
  • Reliable performance for small or large plants
  • Low per piece production costs

Limitations

  • Regular forming blade replacement
  • Limited flexibility for profile changes
  • Cannot match custom roll former output
CZ Purlin Forming Machine
CZ Purlin Forming Machines 13

FAQ

Q: What thickness of coils can be handled?

A: Standard input material thickness is 0.7mm to 3mm. Some models support up to 4mm thickness.

Q: How often do the blades need replacement?

A: On average, forming blades require replacement after producing 15,000-25,000 tons depending on the material.

Q: What level of training is required to operate the machine?

A: Basic training takes 1-2 days. Manufacturers provide detailed operating manuals for reference.

Q: Can I get customized purlin designs?

A: Customization is limited to available profiles. For specialized designs, custom roll formers would be preferable.

Q: What safety measures are incorporated?

A: Standard safety features include emergency stop buttons, safety guards near moving parts, and covered electricals.

Q: What is the typical warranty period?

A: Warranty is generally 12 months from the installation date, covering manufacturing defects in materials and workmanship.

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