Questions & Answers
Our dedicated and highly specialized team stands ready to serve you with all the technical assistance you may need to purchase and get the right roll forming equipment and PU sandwich panel production line working functionally at your end.
From product information to installation support, MTC will always provide personalized and prompt assistance for you.
A roll forming machine is an industrial equipment used to continuously shape sheet metal into specific profiles by passing it through a series of precisely aligned rollers.
The process starts when flat metal coils are loaded into the uncoiler and fed into the machine. As the sheet passes through multiple roll stations, each set of rollers incrementally bends the material until the desired cross-sectional shape is achieved.
This cold forming technique maintains the metal’s thickness while improving its strength and dimensional accuracy. Roll forming is widely used in the production of purlins, metal roofing panels, sandwich panels, garage door panels, and more.
Compared to press brakes or stamping, roll forming offers higher production speed, consistent quality, and cost efficiency for medium to large-scale manufacturing.
More details at our post Unravelling the marvels of Roll Forming Machines.
C and Z purlins are structural steel members used to support roofing and wall cladding in metal building construction. The main difference lies in their shape and application. C purlins have a consistent C-shaped cross-section and are typically used as roof purlins, wall girts, and structural frames where one orientation suffices. Z purlins have a Z-shaped cross-section with an overlapping design that allows them to interlock and be lapped for continuous runs, providing greater structural efficiency over longer spans. Z purlins are commonly chosen when the design requires overlapping sections or when optimizing material for large projects. Our C/Z purlin roll forming machines can produce both profiles with high precision.
More details at our post 7 Key Facts You Must Know about difference between C & Z purlins
Our roll forming machines are designed to process a wide range of materials, depending on your application and product requirements. Common materials include galvanized steel (GI), galvalume steel (GL), cold-rolled steel (CR), hot-dip aluminum-zinc coated steel, pre-painted color-coated steel, stainless steel, and sometimes aluminum sheets.
The machines are capable of handling thicknesses typically ranging from 0.3 mm to 6.0 mm, depending on the profile and material strength. We can also customize the machine design to suit specific materials or surface finishes, ensuring optimal forming performance and minimal surface scratches or deformation.
A PU sandwich panel is a building material consisting of two metal sheets bonded to a rigid polyurethane (PU) foam core.
PU sandwich panels are known for their superior thermal insulation, fire resistance, and long-term durability compared to expanded polystyrene (EPS) panels. PU foam has a much lower thermal conductivity, which means better energy efficiency in buildings.
Additionally, PU panels offer higher compressive strength, better dimensional stability, and reduced water absorption. While EPS panels are cheaper, PU panels provide a more premium solution for cold storage, clean rooms, and energy-efficient buildings.
Our PU sandwich panel production lines deliver high-quality panels with consistent foam density and excellent adhesion.
Our quick-change CZ purlin machines are designed to produce a wide variety of C and Z profiles with different sizes and thicknesses. These machines can switch between C and Z profiles without replacing the rollers manually, thanks to an advanced quick-change mechanism. They are capable of forming purlins with web heights from 80 mm to 300 mm (or more on request) and thicknesses typically between 1.5 mm and 3.0 mm. This flexibility makes them ideal for metal building contractors who need to produce different purlin specifications efficiently. If you have custom profile drawings, we can also adjust the machine settings to accommodate specific dimensions and hole patterns.
Selecting the right roll forming machine depends on several factors. Start by identifying the profile shape and dimensions you need, as this determines the roller design and machine configuration.
Next, consider the material type and thickness, which affect the machine’s forming force and power requirements. Production capacity is another key factor—high-speed lines are recommended for large-scale operations, while simpler manual machines can suffice for smaller jobs.
Also, evaluate the level of automation and budget you prefer. Our engineering team is ready to help you analyze your requirements and recommend the most suitable machine solution to ensure optimal performance and return on investment.
Yes, we specialize in manufacturing fully customized roll forming machines, like floor deckin roll forming machine, solar channel roll foring machine, based on your profile drawings and technical specifications. Whether you have standard or non-standard profiles, our engineers will design the roller layout, machine frame, and punching systems to accurately produce your desired shape. We can also integrate additional features such as automatic cutting, punching, embossing, and stacking according to your production needs. Before manufacturing, we’ll provide detailed CAD designs and discuss every detail with you to ensure the final machine meets your expectations.
The main difference lies in the time and effort required to switch between C and Z profiles. In a manual change CZ purlin machine, the operator must manually adjust or replace roller sets to change profiles, which can take up to 30–60 minutes or longer. A quick-change CZ purlin machine, on the other hand, is designed with a mechanical or hydraulic system that allows operators to switch profiles within 3–5 minutes, significantly improving production efficiency. Although quick-change machines have a higher initial cost, they save substantial time and labor in high-volume or multi-profile production environments.
Our standard lead time for manufacturing a roll forming machine is typically 45–60 working days after confirming the order and receiving the deposit. The exact time may vary depending on the complexity of the machine and customization requirements. Once manufacturing is complete, we conduct thorough testing and inspection before shipment. We also assist with export packing and logistics arrangements to ensure safe and timely delivery to your port or destination.
Yes, we offer overseas installation and commissioning services for our roll forming machines. Our experienced technicians can travel to your site to guide installation, adjust the machine, and train your operators. Remote technical support is also available via video calls, emails, and detailed manuals if on-site service is not possible. We are committed to ensuring your machine is fully operational and your team is confident in running it smoothly.
Installing PU sandwich panels properly is crucial for optimal insulation and structural performance. Begin by inspecting the site and ensuring the supporting structure is level and clean.
Use the appropriate fasteners and sealing materials recommended for PU panels. Start installation from one corner and align the first panel accurately to serve as a reference.
Continue placing panels, making sure the joints are tight and sealed to prevent air or water leaks. Avoid damaging the panel surfaces during handling, and follow the manufacturer’s guidelines for cutting and finishing edges.
We can provide a detailed installation manual and guidance upon request.
The power requirement of a roll forming machine depends on the profile type, material thickness, and production speed. Typically, our machines operate on 380V, 50Hz, three-phase power supply (customizable for other voltages and frequencies). Power ratings can range from 5 kW for small light-gauge machines to over 50 kW for large, high-speed production lines. We’ll specify the exact power requirements in our quotation and provide suggestions for ensuring adequate power supply at your facility.
Proper maintenance ensures long-term performance and minimizes downtime. Regularly clean the rollers to prevent buildup of dust and debris, which can damage profiles.
Lubricate moving parts such as chains, bearings, and shafts as per the maintenance schedule. Inspect electrical components for loose connections and test the control system periodically.
Check the rollers for wear or misalignment, and replace worn parts promptly. Keeping a preventive maintenance checklist and conducting routine inspections can greatly extend your machine’s lifespan and improve production efficiency.
Common issues include profile misalignment, material jams, uneven cutting, and surface scratches. These can often be caused by improper roller adjustment, worn components, or incorrect material feeding. To fix them, ensure the rollers are properly aligned and the forming stations are clean. Replace any damaged or worn rollers, and adjust cutting blades as needed. Regular maintenance and operator training can prevent many of these issues. If problems persist, contact our technical team for prompt assistance and troubleshooting support.
We provide a standard two-year warranty on all our roll forming machines, covering manufacturing defects and faulty components under normal operation.
During the warranty period, we supply free replacement parts (excluding wear parts) and offer technical support. Even after the warranty, we continue to provide lifelong technical assistance and spare parts at competitive prices.
Our goal is to ensure your production remains efficient and reliable for years to come.
That’s right! Don’t want to miss out new machines launched, local events, special offers? Sign up to our emails to be notified of the first update.
We will use the information you provide on this form to be in touch with you and to provide updates and marketing. Your privacy will be well protected!
