Randro Machinery is a manufacturer of cold roll forming machine, with strong technical strength. We produce various types of roll forming machines. Our main exhibits include C/Z/U type purlin machine, roof tile machine, heavy-duty shelf machine, mobile K-SPAN, metal beamless arch machine and so on. Here are 5 key points about K-Span.
- What is K-Span？
Span is a type of machine used to construct beamless arch structures. It typically uses diesel engine and can be placed directly on the construction site to roll-press arch panels. Randro Machinery’s mobile beamless arch constructing machines can roll-press steel plates into arched roofs and are widely used in various types of buildings, including factories, warehouses, gardens, hotels, exhibition halls, breeding bases, aircraft hangars, garage platforms, and stadiums.
2. What is the working principle of K-Span?
K-Span machine typically use diesel engine as a power source. An electric motor drives rollers to progressively roll-form materials such as color steel plates into shape. During the rolling process, the plates are bent and shaped according to a preset arc and shape to form the arched plate required for the beamless arch structure. Randro Machinery’s mobile beamless arch forming equipment is equipped with an advanced and reliable PLC control system, which can precisely control parameters such as rolling speed, force, and arc to ensure the forming quality of the arch plate. Randro Machinery is a Chinese manufacturer of roll forming machines. Our beamless arch forming equipment is the best-selling K-Span machine in the Philippines, our K-Span is also the best-selling k-span in Zambia. Randro Machinery is also the best-selling roll forming machine supplier in Africa.
3. What are the advantages of k-span?
Randro Machinery’s K-Span have these advantages:
Convenient Construction: Vehicle-mounted design allows for rapid transport to the construction site, eliminating the need for complex on-site processing areas and significantly reducing preparation time. Diesel engine eliminates the need for additional energy.
Large Span: Capable of constructing large-span beamless arch structures, with a maximum span of up to 33 meters, providing more interior space for buildings.
Low Cost: Compared to traditional steel structures, it eliminates the need for beams, columns, and space frame supports, saving costs in design, procurement, construction, and use. The cost is only 70%-85% of traditional steel structures.
Aesthetically Pleasing: The pressed arched roof has a beautiful shape and smooth lines, adding a unique aesthetic to buildings.
Superior performance: Made of color-coated galvanized steel sheet with mechanical locking edges, naturally waterproof and leak-proof; lightweight, with a scientifically designed overall structure, it has excellent wind and earthquake resistance, can withstand strong winds of 160km/h and snow loads of 148kg/m².
4. What are the main parameters of K-Span?
Main Technical Parameters of Mobile Beamless Arch Machine of RANDRO
· Forming Motor Power: 7.5KW
· Bending Motor Power: 4.0KW or customized
· Roller Material: Primarily uses high-quality structural steel such as 45# steel, 40Cr, and Cr12, precision forged and hard chrome plated to improve roller hardness and service life.
· Forming and Output Speed: Straightening speed is generally around 15 meters per minute.
· Processable Plate Thickness: Generally capable of pressing 0.6-6mm thick color steel sheets.
5. What are the precautions for operating K-Span?
Equipment Inspection: Before operation, a comprehensive inspection of the equipment is required, including ensuring the connections of all components are secure, the motor and control system are functioning properly, and the roller lubrication.
Material Preparation: Ensure that the color steel sheets used meet the equipment requirements. The thickness, width, length, and other dimensions of the materials should be accurate, and the surface should be free of obvious defects.
Personnel Training: Randro’s k-span is easy to operate，then perators must undergo training, be familiar with the equipment’s operating procedures and safety precautions, and master basic maintenance and upkeep knowledge.
Safety Protection: During equipment operation, operators must wear safety helmets, gloves, and other personal protective equipment. Maintenance and adjustment operations are strictly prohibited while the equipment is running.
