Fully Automatic 80-300mm CZ Purlin Roll Forming Machine Fully Automatic 80-300mm CZ Purlin Roll Forming Line (30 m/min)

Overview

Fully automatic 80-300mm CZ purlin roll forming machine with yellow protective side covers, multi-station hydraulic punching unit, and 3D finished C/Z profile samples against modern steel structure building background

The Fully Automatic 80–300 mm CZ Purlin Roll Forming Machine is an ultra-heavy industrial production line engineered for high-throughput, high-precision fabrication of structural C and Z purlins used in commercial steel-framed buildings, pre-engineered metal buildings (PEB), industrial warehouses, and large-scale solar racking systems. Featuring motorized stepless size adjustment and intelligent touchscreen C-to-Z profile changeover, this heavy-duty system seamlessly converts between C and Z configurations within minutes entirely via the PLC interface, eliminating manual roller dismantling.

Boasting a substantial 15,000 kg (15-ton) machine foundation built from welded structural steel, the production line incorporates 20 precision forming stations plus dedicated straightening roller banks. Driven by a high-torque 15 kW motor through heavy-duty solid steel shafts and vacuum-quenched Cr12 mould steel forming rollers, the system accommodates coil material thicknesses from 1.0 mm up to 3.0 mm across web widths of 80 mm to 300 mm. Integrated with multi-station hydraulic pre-punching and a universal stepless Cr12MoV hydraulic cutting unit, it delivers continuous production speeds up to 30 m/min with strict dimensional repeatability and burr-free shearing.

• Fully automatic motorized C to Z profile changeover directly from the PLC touchscreen in minutes
• Comprehensive purlin dimensional range: web width 80–300 mm, flange 30–80 mm, lip 10–20 mm
• Heavy structural gauge capacity handling 1.0–3.0 mm high-tensile galvanized and cold-rolled steel
• High-output continuous rolling speed up to 30 m/min powered by a 15 kW industrial drive motor
• 20 forming roller stations with straightening rollers utilizing vacuum-quenched Cr12 alloy mould steel
• Multi-station hydraulic pre-punching for automated web and flange bolt mounting hole layouts
• Universal hydraulic stepless cutting blade (Cr12MoV) requiring zero blade swaps across all sizes
• Ultra-heavy 15,000 kg structural steel frame delivering vibration-free operation; 5+ years warranty

Key Features

• Electric Motorized C/Z Auto Changeover. Independent electric gear motors on each station drive synchronized precision transmission screw rods to automatically adjust web width, flange height, and lip dimensions, executing C to Z conversion directly from the touchscreen without operator manual adjustments.
• Multi-Station Hydraulic Pre-Punching. Features dedicated high-tonnage hydraulic cylinders with customized die sets to punch web holes, flange holes, and slotted mounting patterns at programmable coordinates along the moving strip prior to roll forming.
• Premium Cr12 Mould Steel Rollers. Precision CNC-machined forming rollers are manufactured from certified Cr12 alloy tool steel and vacuum heat-treated to HRC 58–62, delivering outstanding wear resistance and protecting coil zinc coatings against scuffing.
• Heavy 45# Forged Steel Solid Shafts. Heavy solid steel shafts undergo rigorous normalization, precision turning, and grinding to eliminate deflection under severe 3.0 mm high-strength steel forming stresses.
• Universal Stepless Hydraulic Shear. Incorporates a universal adjustable Cr12MoV cutting blade assembly that adapts automatically to changing purlin profile geometries, delivering square, burr-free end cuts without changing shear dies.
• Intelligent Imported Brand PLC System. Premium industrial PLC console with multi-language color touchscreen supports complex order queuing, automatic punch pitch calculation, batch length counting, and real-time self-diagnostics.
• Heavy 15-Ton Structural Chassis. Substantial 15,000 kg welded structural base with heavy-gage side plates guarantees vibration absorption and lifelong mechanical precision during high-speed rolling.

Technical Specifications

C & Z Purlin Dimensions & Geometry

The machine delivers motorized continuous adjustment across the complete C and Z purlin dimensional range directly via the PLC touchscreen, with no mechanical roller changes required:

Machine Structure & Automatic Size Change

The automated line begins with coil uncoiling and precision entry leveling, feeding directly into the multi-station hydraulic punching unit. After punching, the strip enters the 20-station forming bed where individual motorized gearboxes reposition roller clusters laterally along linear guide rails according to the programmed C or Z profile recipe. Upon exiting the final straightening stands, the shaped purlin is accurately severed on the fly by the universal hydraulic shear.

Heavy workshop view of the complete line highlighting the universal hydraulic shear head and pre-punching frame with dual top hydraulic cylinders and structural H-beam base

Automatic motorized C to Z size-changing transmission mechanism with multi-station electric gear motors, drive shafts, and CNC-machined Cr12 forming disc rollers

Structural Applications & Installation

Structural C and Z purlins manufactured on this machine are the primary secondary structural elements across industrial, commercial, and energy infrastructure:

• Pre-Engineered Steel Buildings (PEB). C and Z purlins support exterior roof sheeting and insulated wall cladding systems spanning between primary rigid frames.
• Continuous Lapped Z Purlin Framing. Lapped Z purlins provide superior structural moment continuity over building column rafters, reducing deflection and total steel weight.
• Solar PV Mounting Racks. Serves as high-strength, corrosion-resistant longitudinal purlins and support rails for commercial rooftop and utility-scale ground-mounted solar arrays.
• Mezzanine Joists & Wall Girts. Heavy-gauge C sections provide robust headers, floor framing members, and door jamb studs in multi-story industrial facilities.

3D structural CAD models of C and Z purlin profiles with punched holes and architectural rafter beam installation assembly showing double cleat and lapped continuous Z purlin joints

Quality & Certifications

Manufactured in full conformity with ISO9001 quality management procedures and European CE Machinery Directive regulations, every machine is subjected to rigorous workshop mechanical alignment and a continuous trial rolling test with steel coil before factory dispatch. Official third-party compliance credentials (COTECNA, UDEM) and pre-shipment inspection documentation accompany every export delivery.

Official international CE Machinery Directive credentials and ISO9001 certified manufacturing quality documents gallery

Factory & Manufacturing Strength

With modern production facilities, extensive international export experience, and advanced heavy manufacturing workshops, our specialized engineering team guarantees comprehensive quality control from raw metallurgical forging to final CNC machining and automated factory testing.

Comprehensive industrial facility showcase: modern factory exterior, corporate exhibition showroom with honor wall, and heavy automated assembly workshop

Customization Options

Packaging & Delivery

The entire CZ purlin roll forming production line is comprehensively protected for long-distance maritime transit. Polished roller surfaces, solid shafts, and bare mechanical tooling are treated with anti-corrosion grease and wrapped with multi-layer waterproof protective film. The 15-ton machine chassis and separate hydraulic station are securely fastened within 40-foot open top or high cube shipping containers using high-strength steel wire rope lashing and heavy timber chocks, ensuring damage-free delivery worldwide.