Glossary
1 MIN READ
Angle Rolling
The process of passing structural profiles—such as beams, pipes, channels, or angles—through driven rolls to bend them into curved shapes, rings, or spirals.
Technical FAQ
Metal fabricators often need to diversify their production from flat sheets to structural profiles, which requires choosing the right technology to adapt to varying market demands. While plate rolling utilizes wide cylinders to form flat sheet metal into cylinders or cones, angle rolling utilizes specialized, narrower driven shafts to bend structural shapes like beams, pipes, channels, or angles. This clear distinction helps job shops select the exact machinery needed to maximize shop versatility, expand their service portfolio, and capture new commercial opportunities. Davi builds dedicated lines for both applications, engineering systems that handle plates up to 400 mm (15.75 inches) thick and structural sections like beams up to 1,200 mm (47.24 inches) in height.
Structural fabricators need to curve heavy beams and profiles accurately without manually turning the part around, which slows down operations. A 3-roll double pinch configuration features two independently moving side rolls that adjust against a fixed top roll. This allows the machine to execute precise pre-bending on both the leading and trailing ends of structural profiles in a single directional pass, drastically reducing part handling time. Davi MCP angle rolls utilize this double-pinch planetary geometry to process heavy structural sections with high accuracy.
Handling long, heavy structural sections safely requires matching the machine orientation directly to the workshop workflow. Horizontal shafts are ideal for standard, lighter profiles manipulated vertically, whereas vertical shafts are used for massive sections, allowing them to be rolled parallel to the ground surface. Vertical shafts simplify the handling of heavy sections, reducing the risk of material tipping and improving workshop safety. Davi MCP angle rolls can be configured with either horizontal or vertical orientation to fit the exact layout requirements of specialized companies.
Job shops need to switch between structural shapes like flats, squares, and channels without purchasing separate tooling sets. Universal rolls are modular, adjustable tool sets engineered to accommodate a wide variety of standard structural profiles on a single shaft. They eliminate the downtime required for full tooling changes, reduce capital investment in spare parts, and increase workshop versatility. Davi MCP series angle rolls come standard with universal rolls that can even process heavy channels and beams.
Changing out heavy section bending tools manually increases operator fatigue and creates safety risks on the shop floor. A hydraulic rolls setup automates the adjustment and configuration of the profile tooling via the control console. It reduces setup times when shifting between different production batches and improves operator safety by eliminating heavy manual handling. Davi includes smart hydraulic setup options across its mid-to-high capacity MCP angle rolling lines.
Checking large structural curves on the workshop floor using drawings is slow, imprecise, and consumes valuable space. The HD iRoll Camera projects a real-time digital template onto the console screen, allowing the operator to cross-check the curve radius during forming. It speeds up quality control, reduces handling times, and allows the operator to monitor accuracy without stopping the machine. This patented optical system is an exclusive option developed for Davi MCP angle rolling machines.
Waiting for an on-site technician during an unexpected software or operational issue can delay production schedules. Remote support allows factory-trained engineering teams to access the machine's PLC data securely over the network. It enables technical teams to diagnose faults, adjust parameters, and resolve programming issues in minutes without travel delays. Davi provides dedicated remote engineering support to minimize downtime and maintain production availability.
Waiting for standard shipping on simple wear components during a critical production run reduces a job shop's productivity. A custom spare parts kit provides an on-site inventory of essential seals, filters, sensors, and wear items tailored to your machine model. It allows your maintenance team to replace common wear parts instantly, minimizing waiting times and protecting operational continuity. Davi stocks over 11,000 different items at its global service hubs to ensure rapid fulfillment and kit customization.
Procurement teams must evaluate the long-term financial impact of a machine purchase beyond the initial sticker price. TCO calculates the complete cost of acquiring, operating, maintaining, and disposing of an asset over its entire operational lifespan. It helps companies avoid low-cost alternatives that carry high hidden costs for frequent repairs, expensive custom parts, and excessive downtime. Financial analyses over a 10-year period show that Davi's reliable engineering and standard parts strategy offer a more cost-effective TCO.
Deep foundation excavation can be expensive, disruptive, and complicated by high local water tables. A pit-free machine features a compact frame design that allows the equipment to be installed directly onto a standard reinforced workshop floor. It lowers initial installation costs, avoids expensive excavation work, and allows for faster machine setup after delivery. Davi designs its compact MCA 4-roll series to support pit-free installation layouts, helping job shops accelerate their return on investment.
Selecting an angle roll based solely on maximum catalog capacity can lead to profile deformation, web buckling, or tooling mismatches when handling smaller or non-standard structural sections. Davi angle rolls—such as the Davi MCP 3-roll double pinch series—are engineered with three independent hydraulic motors and the proprietary Davi Torque Management System (DTMS) to automatically balance torque and synchronize contact speeds across varying roll diameters. While commercial catalogs list maximum bending capacities for heavy beams up to 1,200 mm (47.2 in) or pipes up to 800 mm (31.5 in), Davi MCP machines utilize configurable Universal Rolls. These adjustable roll sets accommodate a wide spectrum of minimum to maximum standard profiles—including flats, squares, rounds, angles, T-shapes, channels, and I/H-beams—without requiring dedicated custom tooling for every size. Combined with hydraulic guide roll setups and 3D forming capabilities, Davi angle rolls deliver precise geometric control, eliminate section slippage, and allow rapid tooling adjustments between varied job shop batches.
Selecting an angle roll requires evaluating section modules, profile geometries (e.g., I-beams, channels, pipes, angle iron), minimum bending radii, and beam orientation during processing. Davi MCP 3-roll double pinch angle rolls are available in two operational configurations:
- Horizontal Shaft Configuration: Recommended for smaller-to-medium profiles, allowing ergonomic manual handling of light sections.
- Vertical Shaft Configuration: Engineered for heavy structural steel, processing large beams up to 1,200 mm (47.2 in) height, pipes up to 800 mm (31.5 in) diameter, and heavy flanges parallel to the shop floor to streamline crane handling. Equipped with three independent hydraulic motors and the Davi Torque Management System (DTMS), MCP machines balance power delivery across varying roll diameters to prevent profile slipping or twisting. Talk to an Expert to match your structural section drawings to the ideal MCP machine size.
Davi profile benders are paired with specialized control hardware and vision systems designed to handle 3D structural bending:
- iRoll CNC Platforms: Enable automatic generation of single and multi-pass programs, controlling axis movements, hydraulic guide roll positioning, and rotational speeds.
- 3D Forming System: Integrates a CNC-controlled turning unit that rotates sections around their longitudinal axis while feeding forward, enabling automated 3D spiral and spatial shape forming (e.g., for roller coasters or complex architectural steel).
- Patented HD iRoll Camera: Replaces manual floor templates with a digital camera system mounted directly on the machine. It projects a calibrated digital template onto the operator screen, allowing real-time radius verification during forming without unloading heavy sections.
Different manufacturing environments require distinct mechanical geometries to handle specific plate thicknesses, section profiles, and automation levels.
- MCA Series (4-Roll Compact): Designed for high-speed, repeatable plate forming from 2 to 6 m (6.5 to 19.6 ft) wide, combining compact framing with planetary side roll guides for rapid CNC production.
- MCB Series (4-Roll Heavy Duty): Engineered for medium-to-heavy industrial fabrication handling plates up to 400 mm (15.7 in) thick, featuring swingable pendular gearboxes that allow stress-free roll tilting up to 100 mm (4 in) every 3 m (10 ft).
- MAV Series (3-Roll Variable Axis): Utilizes independently moving side rolls and a vertical top roll—similar to a press brake—providing maximum leverage for heavy plate rolling, pressure vessels, and precise re-rolling of pre-welded shells.
- MCP Series (3-Roll Angle Roll): Engineered with three independent drive motors and universal modular tooling to bend structural beams up to 1,200 mm (47.2 in) height and pipes up to 800 mm (31.5 in) diameter.