Your Choice of Product
Introduction
Gypsum board machinery operates continuously and involves many interconnected mechanical, electrical, and thermal processes. When operational issues arise, they can affect production speed, board quality, or equipment reliability. A structured troubleshooting approach helps operators quickly identify the cause, minimize downtime, and maintain stable output.
This article outlines common problems in gypsum board production lines and provides detailed troubleshooting guidelines. Hengshui Decheng Machinery & Equipment Co.,Ltd supports its equipment with technical assistance and practical solutions for efficient daily operation.
Board core density fluctuates
Surface defects or voids
Inconsistent setting time
Inaccurate dosing of stucco or additives
Check feeder calibration
Clean clogged dosing valves
Inadequate slurry mixing time
Inspect mixer paddles or mixer speed settings
Foaming agent failure
Verify foaming air pressure
Clean foaming nozzle
Maintaining proper slurry rheology is essential for reliable forming and strength.
Uneven board edges
Paper delamination
Paper wrinkles or tearing
Adjust paper tension control
Check alignment rollers for wear
Make sure paper moisture content is stable
Confirm unwinders are synchronized
Paper misalignment can seriously impact board profile and bonding quality.
Board thickness variation
Poor edge formation
Slurry overflow or dry zones
Re-adjust forming plate and thickness shoes
Clean forming belt surface
Ensure headbox slurry distribution is uniform
Check belt speed relative to slurry flow
A smooth forming process is fundamental for dimensional stability.
Boards crack during cutting
Slow setting reaction
Surface softness
Incorrect slurry water ratio
Additive over-dosage
Belt running too fast
Temperature variations
Recalibrate water flow meters
Verify additive recipe accuracy
Adjust conveyor speed
Inaccurate board length
Burrs or broken edges
Cutter vibration
Check synchronization of cutter with line speed
Replace worn blades
Tighten cutter guide rails
Inspect servo motor or encoder
Accurate cutting reduces downstream waste.
Boards warping
Residual moisture too high
Uneven drying across width
Adjust zone temperatures
Inspect fan rotation and airflow distribution
Clean blocked exhaust ducts
Ensure boards enter the dryer at uniform moisture content
Dryer optimization significantly impacts product consistency.
Board edge breakage
Misaligned stacks
Surface scratches
Check conveyor transition points
Inspect stacking arms and vacuum lifters
Adjust pallet positioning
Smooth handling after drying protects finished board quality.
Sensor failure
PLC program errors
Loose connectors
Recalibrate or replace sensors
Inspect cabinet wiring
Verify program logic for timing and synchronization
Troubleshooting gypsum board machinery requires understanding the interaction between material behavior, machine parameters, and product design. A systematic diagnostic approach—starting with raw materials, through forming and drying, and ending with final handling—helps resolve most production issues quickly. Hengshui Decheng Machinery & Equipment Co.,Ltd provides technical support, spare parts, and engineering guidance to help operators maintain stable, high-quality gypsum board production.
Processing demand survey
x
