Z Purlin Making Machine

Z purlin roll forming machine

Beenew Machinery is one of the earliest manufacturers of Z-type purlin roll forming machines in China, and can provide complete solutions for Z-type purlins in standard widths of 75/100/125/150/200mm and customized sizes.

This forming machine can produce Z-type purlins and is also compatible with C-type purlins. The produced steel purlins are made of hot-rolled steel sheet by cold bending, are lightweight, and suitable for roofing purlin characteristics. They are widely used in the roofing and wall support of large and medium-sized buildings, and are a core component production equipment for steel structure buildings.

Z-type purlins: With a Z-shaped cross-section, thin walls, light weight, excellent cross-sectional performance, and high strength, they can be used not only for roofing but also for wall structural support and floor beams, and are a commonly used purlin type in steel structure buildings.

Machine Features

Produces purlins of different sizes without changing rollers/shims; quick switching between 60-250mm sizes within one minute, with no size limitation within this range, saving raw materials.

Equipped with a pre-cutting system (with optional post-cutting); no need to change tools for different sizes; punches can be made at any position on the purlin web and flanges; supports embossing and logo engraving.

Simple operation and low maintenance costs; equipped with a protective cover, emergency switch, and error-proofing program for comprehensive safety protection.

Processing length tolerance ±0.5mm; compatible with Q235 yield strength raw materials; stable finished product quality.

Technical Parameters

Core parameters: Web processing width 100-600mm, flange 10mm, inspection thickness 0.5mm; processing sheet metal 1.5-3mm color-coated sheet (PPGI) and galvanized sheet (GI); production speed approximately 15m/min.

Machine Components

Uncoiling machine: Maximum width 600mm, maximum load 5000kg, passive/hydraulic operating modes.

Cold bending forming main unit: 11-15 roll stations, rolls are GCR15 chrome-plated steel (HRC58-62°), main shaft is 80mm solid 45# steel, driven by an 18.5kw Shanghai electric motor.

Cutting and punching device: Cutters/dies are Cr12 treated steel (HRC58-62°), hydraulic station motor 5.5KW, using qualified column-type cutting.

PLC control cabinet: Delta PLC + Omron encoder, touch screen operation, length error ±2mm, supports Chinese and English, 380V/50HZ three-phase (customizable).

Hydraulic pump station: 46# hydraulic oil, Huade solenoid valves, 5.5kw motor, fan cooling.

Production support platform: Non-powered type, length 2m. 

Production Process Flow

Uncoiling machine → Forming mandrel → Hydraulic system → Automatic control system → Step-by-step forming mechanism → Automatic shearing mechanism → Finished product receiving table. Core processes include hydraulic punching and hydraulic cutting.

Differences Between Z-Type and C-Type Purlins

Both are steel structure purlins, but their core differences lie in seven aspects. Z-type purlins are more advantageous in large-span, high-slope roof applications:

C-type purlins have a 90° angle and are used for building walls and floor beams; Z-type purlins have an angle <90°, offering greater flexibility and are used for roof and wall support, suitable for high-slope roofs.

Z-type purlins can be continuously overlapped, suitable for large-span metal buildings, while C-type purlins cannot be overlapped.

Z-type purlins have higher strength and can support heavy structures, suitable for agricultural and industrial buildings, but have higher installation requirements; C-type purlins have slightly lower strength but are easier to install.

The greater the roof slope, the higher the utilization rate of the vertical bending section modulus of Z-type purlins, while C-type purlins do not have this characteristic.

Supporting Services

Beenew Machinery, established in 1997 and headquartered in Xiamen, Fujian, specializes in the customized production of various roll forming machines. Our products hold IAF/SGS/CE certifications, and we cooperate with over 80 countries. More than 2,000 customers have visited our factory. Equipment comes with a warranty of over 20 years.

After-Sales Service

One-year warranty on the entire machine, 24 months of free repair, and lifetime technical support. Unrepairable parts will be replaced free of charge during the warranty period (customer bears shipping costs).

Delivery within 35 days of receiving the deposit. Customized equipment is available.

Customers visiting our factory can receive face-to-face training on equipment installation, operation, and technical personnel.

We handle global shipping, providing a full range of logistics services including packaging, reinforcement, sterilization, and loading.

Beenew factory