DOUBLE GLUING MACHINE GU—D8C
DOUBLE GLUE MACHINE
Servo-driven glue application with automatic gap and temperature control — built to hold flute-tip precision at up to 400 m/min without over-applying starch.
400 m/min
MAX SPEED
Ø200mm
DOCTOR ROLL
Ø300mm
GLUE ROLL
±0.02mm
GAP ACCURACY
GLUE ONLY WHERE IT NEEDS TO GO
The GU-D8C meters glue between a chrome-plated, ground Ø200mm doctor roll and a Ø300mm glue roll, holding roller runout within ±0.01mm and gap accuracy within ±0.02mm. The doctor roll moves relative to the fixed glue roll, so gap — and therefore glue dosage — is set directly rather than estimated.
A built-in database of preset glue curves drives automatic gap and thickness control, with fine adjustment from 0.05mm to 0.65mm. Zero-backlash screw motors self-calibrate the pressure system, so glue lands on the flute tips rather than the flat of the medium — the direct lever on starch consumption.
Each layer runs its own program, touchscreen, pressure system and speed setting, tuned independently by flute type. When the corrugator stops, the glue roll keeps turning at idle speed inside a high-temperature inert liquid fill, so the glue film never sits still long enough to gel.
ROLL SET
Two precision-ground, chrome-plated rolls set the glue film — one metering, one carrying.
DOCTOR ROLL
- Adjustable, chrome-plated metering roller with an independent drive system
- Ground and chrome-plated surface finish
- Fitted with adjustable glue dams
- Moves relative to the fixed glue roll to set gap directly
GLUE ROLL
- Ground and chrome-plated surface finish
- Carries the glue film formed while submerged in the glue pan
- Continuous film held under stable hydrostatic pressure
- Filled with high-temperature inert liquid for stable temperature
MACHINE CONFIGURATION
How dosage and bonding pressure are actually held to tolerance across the web.
CHROME-PLATING
The doctor roll moves relative to the fixed glue roll. Adjusting the gap between the two rollers regulates glue dosage directly, rather than through indirect metering.
Fitted as an adjustable, chrome-plated Ø200mm metering roller with its own independent drive system.
PRESSURE ROLLER
Optimal bonding pressure is applied precisely between the paper flutes and glue roll, held to the same strict tolerance as the gap control.
Pressure is exerted via two cylinders mounted at both ends of the web. Each layer runs an independent pressure system, dynamically optimized against the actual caliper of the medium being processed.
