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Bertsch Plate Rolls
Bertsch bending rolls are designed and built to accurately form metal from gauge thickness through 14" thick and larger, and can be custom designed to meet specific applications.
Key Advantages Of Bertsch Rolls...
More Pre-Bend
Bertsch machines pre-bend to the machine’s rolling capacity. Most competitors specify less pre-bending capacity than rolling capacity.
Minimum Rolling Diameter at Maximum Material Thickness/Width
Bertsch rates its machines to pre-bend and roll material to small diameters. Most competitors limit their maximum capacity to five times the top roll diameter.
Designed for Longer Life
Rectilinear guides provide longer service life and maintain better parallelism over the life of the machine.
Better Quality Parts
Rectilinear guides also produce the smallest flats on the ends of rolled parts.
Easier to Use
Bertsch’s electronic leveling system allows operators to make roll corrections on both ends of each roll, not just one end.
Higher Capacity
Bertsch rates its machines for the nominal thickness and length of the machine. For example, a 1-inch, 10-foot machine can roll a 10-foot wide piece of 1-inch thick material to its minimum roll diameter. Other manufacturer’s specifications are more closely matched to Bertsch’s smaller capacity models.
Comparison of 1 in./10 ft. Rolls Pre-Bending
While many manufacturers have the ability to roll to their maximum capacity, they cannot pre-bend the material. This forces the user to either pre-bend material on a press brake, or purchase a larger machine with higher capacity.
Bertsch Hydraulic Angle Rolls
Angle Roll Specifications
Machine Design
The Bertsch Double Pinch design reduces end flats to a minimum. The top roll is in a fixed position, while the two lower rolls have independent hydraulic adjustments. This design provides ease of operator control as well as more uniform rolling results.
Vertical or Horizontal Working Position
The Bertsch Angle Roll can be designed to work equally well in the vertical or horizontal position.
Hydraulic Drive
All three rolls are driven by planetary speed reducers for positive feed and efficient torque transmission. Bertsch Angle Rolls are designed with a self speed compensating drive for proper roll rotation between the top and lower rolls.
Hydraulically Adjustable Guide Rollers
The hardened guide rollers are hydraulically adjustable from the operator’s control pendant. Each guide roll assembly is provided with a “leg-in” attachment.
Operator’s Control Pendant
All essential operator functions are located in a “walk-around” pendant type control for maximum mobility.
Standard Dies Furnished
One complete set of standard dies is furnished with each machine. Each die set is supplied with one hardened spacer to provide support for the tip of the vertical leg being formed. Standard dies will accept: flat bar, bar-on-edge, square bar, angle leg-in, angle leg-out, “T” leg-in, “T” leg-out, and “T” on web.
Standard Features
• Vertical or horizontal working position
• All three rolls driven
• Double pinch design
• Two lower rolls are independently adjustable
• Energy efficient “load sensing” hydraulic pump
• Mechanical pointer and scale indicator for each adjustable lower roll (digital readouts optional)
• Operator’s “walk-around” pendant control station
• Hardened steel guide rollers
• Pressure filter
• Set of standard dies
• Heavy fabricated frame
• Complete with electrical disconnect
Standard Safety Features
• Electric cabinet having door interlocked with fusible type disconnect
• Power “on” button at control station with built-in light
• Line starter with thermal overload and low voltage protection
• A system pressure relief valve limiting the hydraulic drive and bending rolls to a factory preset pressure
• Reduced voltage electrical controls
• Emergency “stop” buttons mounted on both sides of the machine and in the operator’s control station
• Toggle type switches, having spring return to “off” position, for controlling all the operating functions of the machine
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