Material (Adhesive & Special Liquid) Supply Subsystem
Table of Contents
In a dispensing system the first main subsystem is the material supply. In this system adhesive or sealing material will be conveyed under pressure by a displacement pump from a material container to the meter or straight to the applicator.
This subsystem consists of material containers (i.e., barrels, cartridges, cans, etc.), displacement pumps, material hoses and material supply control cabinets. The configuration varies according to the application volume and the degree of automation of the dispensing system.
Typical material containers
Cartridge
- Volume: 310 ml – 1L
- Mostly used in manual stations and for material testing.
- Recommended for low volume application or low production volume, due to higher costs.
Metal Can
- Volume: 1L ~ 5L
- Mostly used in manual stations and for material testing
- Recommended for low volume application or low production volume, due to higher costs.
Drum/ Barrels/ Hobbocks
- Volume: 20L ~ 1000L
- Mostly used in automated stations, but also found in manual stations depending on application and production volume.
- Recommended for high volume application and high production volume.
Material supply unit
The material supply unit is the material conveyor in the material supply subsystem. These units vary according to application type and size.
Compact material supply
Drum material unload unit
Typical fully equipped material supply subsystem
Drum supply ram
Structure in which material supply components are assembled. This also assists in introducing the follower plate and the displacement pump to the barrel
- The rams can be either pneumatically or hydraulically driven
- Different sizes according to barrel sizes
Pump control cabinet
Controller, required for operation of the pumps and changing drums. Typical functions are:
- Stroke monitoring
- Pump off when the barrel is empty
- Automatic mode for changing to the second drum when the first drum is empty
Material hoses
Key component of material supply unit where high pressure is created to convey material
- Available in different sizes, lengths, designs and materials, depending on technical requirements
- Ballooning effect* is a common challenge which has to be considered when
choosing a hose
*Ballooning refers to expansion of the material hose due to high material pressure, which could lead to quality issues during material application. A known issue is that when ballooning occurs, the system gives a higher initial application volume than has been pre-set.
Displacement pump
Key component of material supply unit where high pressure is created to convey material from the drum to the dispensing system
Different sizes for different material consumption needs
Follower plate
Main function is to seal the barrel and follow the material inside the drum.
- There are standard diameters for different barrel sizes: 20 L, 50 L, 200 L, 1 000 L
- Optimized follower plates are designed to reduce material remaining inside the
barrel, allowing: Cost savings; Elimination of material waste; Reduced disposal costs; Less environmental impact.
Contact GLUDITEC for more information:
Hotline: (+84) 969 469 089
Email: info@gluditec.com