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Double Backer for Corrugated Board Production Line

The double backer is one of the core units in the corrugated board production line. It is used to bond single-face corrugated board with liner paper through adhesive application, heating and pressure, forming finished corrugated boards with required strength and flatness.

Classification:

Keywords:

dpack

double backer

corrugated board double backer

corrugator double backer

corrugated board bonding machine

double facer

double baker

shoes contact bar

pressure plate

hot plate

Detailed

Product Overview

The double backer is designed to bond single-face corrugated board with liner paper in the corrugated board production line. Through controlled heating, pressure and conveying, it ensures proper bonding and shaping of the board.

With optimized temperature control, uniform pressure distribution and a stable conveying system, the double backer improves bonding strength, board flatness and overall production stability, playing a critical role in finished board quality.

NameDouble Backer

Model

DF250-350

Design speed

250-350m/min

Production width

2200mm - 3350mm
Features
  • Automated PLC + touchscreen control with user-friendly parameter setting
  • Shoes contact bar control system connected to PMS for auto lifting/lowering and pressure adjustment based on speed, width, and material
  • Sectional temperature control of heating plates to adapt to machine speed variations
NameDouble Backer

Model

DF150-220

Design speed

150-220m/min

Production width

1400mm-2500mm
Features
  • Shoes contact bar control system for auto lifting/lowering and pressure adjustment based on speed, width, and material
  • Sectional temperature control of heating plates to adapt to machine speed variations

Application

The double backer is widely used in various corrugated board production lines and is suitable for the production of 3-ply, 5-ply, 7-ply and heavy-duty corrugated boards. It works together with single facers and glue applicators to meet different board structures and production requirements.

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