Double Pre-pinch Plate Bending Machine Suppliers In Varanasi

Introduction to Double Pre Pinch Plate Bending Machine

A double pre pinch plate bending machine is a heavy-duty sheet metal forming machine used to bend and roll metal plates into cylindrical or curved shapes. Known for its ability to pre-bend both ends of the metal plate before the rolling process, this machine ensures precision and eliminates the need for extra edge trimming. It is commonly employed in industries that require high-strength cylindrical components such as pressure vessels, pipelines, silos, and storage tanks.

Working Mechanism of Double Pre Pinch Plate Bending Machine

This machine typically features three rollers—two pinch rollers (top and bottom) and one bending roller (side roller). The double pre pinch system allows both leading and trailing edges of the metal sheet to be bent prior to full rolling. The sequence ensures minimal flat ends and uniform curvature throughout the rolled material.

The bending process involves feeding the sheet between the rollers, clamping it tightly with the pinch rollers, and then adjusting the side roller to form the desired curvature. The plate can be fed from either side, providing operational flexibility.

Key Features of Double Pre Pinch Plate Bending Machine

. Three-roll configuration with top and bottom pre-pinch system . Hydraulic or mechanical drive options . High-torque motor and gearbox for efficient rolling . Easy synchronization for accurate bending control . Digital or analog control panel for precise adjustments . Sturdy frame construction for vibration-free operation

Technical Specifications (Typical)

. Plate Width Capacity: 1000 mm to 4000 mm . Plate Thickness Capacity: 4 mm to 40 mm . Roll Diameter: 150 mm to 450 mm . Bending Speed: 3–6 meters per minute . Power Supply: 3-phase, 415V, 50Hz . Control Options: Manual, semi-automatic, or CNC

Specifications may vary based on manufacturer and model configurations.

Applications in Industrial Sectors

Double pre pinch plate bending machines are widely used in commercial and industrial applications due to their ability to process thick plates with precision and speed. Common application sectors include:

. Pressure vessel manufacturing . Windmill tower fabrication . Steel and metal structure construction . Boiler and heat exchanger fabrication . Shipbuilding and offshore structures . Storage tank and pipeline production

These machines are extensively used in industrial units that deal with medium to heavy-duty fabrication.

Benefits of Double Pre Pinch Plate Bending Machines