OSD-8100 Industrial Hot Melt Adhesive Melter – 100kg Dual Gear Pump System

1. Why a 100kg Melting Tank Makes a Difference

The OSD-8100 belongs to the highest-capacity category of the OSD gear pump hot melt adhesive machine series.

Its 100kg melting tank accommodates a substantial quantity of solid hot melt adhesive in a single loading operation. For factories running continuous production, this reduces the frequency of manual adhesive replenishment and supports more efficient material handling.

A larger tank also provides additional space for thermal circulation and adhesive distribution. The extended internal circulation path is designed to improve temperature uniformity throughout the melting chamber.

Under suitable operating conditions, the temperature difference between the upper and lower adhesive layers can be controlled to within approximately ±1°C, helping maintain consistent adhesive properties during operation.

Powered by a 380V electrical supply, the 15kW heating system delivers a rated melting capacity of 75kg of hot melt adhesive per hour.

At this nominal melting rate, a full 100kg adhesive load represents approximately 1.3 hours of melting throughput. Actual melting time and adhesive consumption depend on the adhesive formulation, starting temperature, and production requirements.

For high-volume manufacturing facilities, this capacity helps reduce interruptions caused by adhesive loading and provides a substantial adhesive reserve for production.

2. Dual Gear Pumps with Independent Frequency Control

The defining feature of the OSD-8100 is its dual-pump, dual-frequency-control architecture.

Instead of relying on a single gear pump to serve every adhesive application point, the machine integrates two 20 mL/rev gear pumps, each equipped with its own variable frequency drive and control circuit.

This configuration allows the two pumps to operate at different speeds according to production demand.

3. How the Dual-Pump System Works

Consider a factory operating two adhesive application lines simultaneously.

Production Line A – Main Assembly Line

Pump A supplies hot melt adhesive to the main production line. Its delivery speed and adhesive output can be adjusted according to the requirements of the primary manufacturing process.

Production Line B – Secondary Assembly Line

Pump B independently supplies the secondary production line. Operators can adjust its output without changing the operating speed of Pump A.

Both pumps draw adhesive from the shared melting tank while maintaining separate pumping and delivery controls. Temperature regulation for connected hoses and application equipment can be managed by the relevant heating zones, depending on the system configuration.

This arrangement offers several practical advantages:

• Two adhesive supply circuits can operate simultaneously.
• Pump speeds and adhesive delivery rates can be adjusted independently.
• Production lines with different adhesive consumption requirements can share one melter.
• One pump circuit can be stopped for maintenance while the other remains operational, provided the shared system is functioning normally.
• Factories can reduce the need for separate adhesive melting equipment.

For automotive interior assembly and home appliance manufacturing, where unplanned line stoppages can result in substantial production losses, independent adhesive supply control offers meaningful operational flexibility.

4. Designed for Continuous Industrial Production

The OSD-8100 is not simply a larger hot melt glue machine. Its structure and control system are designed around the requirements of heavy-duty industrial production.

PLC Touchscreen Control

The integrated PLC touchscreen provides separate operating information for the two gear pumps. Operators can monitor pump status, adjust operating settings, and manage adhesive application parameters through a centralized interface.

Different adhesive application recipes and spraying programs can be stored independently, helping manufacturers manage production processes with different operating requirements.

Heavy-Duty Structural Design

The machine uses an integrated cast-frame structure with self-latching protective housing panels.

With a total weight of approximately 300kg, the robust construction is designed to reduce operating vibration and provide sufficient internal space for inspection and maintenance.

Flexible Adhesive Hose Connections

Depending on the selected configuration, the OSD-8100 supports 1–4 adhesive hose connections, allowing manufacturers to connect compatible adhesive dispensing equipment across their production processes.

5. Industrial Applications

Automotive Interior Manufacturing

In automotive interior production, hot melt adhesive is widely used in bonding, laminating, and assembling interior components.

The dual-pump configuration allows manufacturers to supply adhesive to separate application processes while adjusting the output of each pump according to its production requirements.

Home Appliance Assembly

Large appliance manufacturing facilities often operate multiple assembly stations with different adhesive consumption rates.

The OSD-8100 provides centralized adhesive melting while allowing two production circuits to receive independently controlled adhesive delivery.

Continuous Mattress Production

Mattress manufacturing lines require consistent adhesive application during the bonding of foam, fabric, and other layered materials.

The 100kg tank and high melting capacity help support continuous manufacturing, while independent pump control accommodates different adhesive application requirements.

Nonwoven Fabric Lamination

For nonwoven fabric processing and industrial lamination, stable adhesive delivery is essential for maintaining consistent coating and bonding performance.

The OSD-8100 can be integrated with compatible adhesive dispensing equipment used in continuous material processing.

Large-Scale Furniture Manufacturing

Manufacturers operating multiple furniture assembly or bonding stations can use the dual-pump system to organize adhesive delivery across separate production processes.

Centralized adhesive melting can simplify equipment management and reduce the number of individual melters installed on the factory floor.

6. OSD-8100 vs. OSD-860A: Which System Fits Your Production Line?

The OSD-860A is a high-capacity single-pump hot melt adhesive melter, while the OSD-8100 is designed for manufacturers requiring greater melting capacity and two independently controlled pumping circuits.

For factories requiring only one adhesive supply circuit, the OSD-860A may offer a more economical solution.

However, when separate production lines need independently adjustable adhesive delivery, the OSD-8100 can be a more space-efficient alternative to installing two individual machines.

A single OSD-8100 requires one equipment location, one main operator interface, and one shared melting system while supporting two pumping circuits.

This design can simplify centralized operation and maintenance, making it an attractive option for large manufacturing facilities seeking to optimize their equipment investment.

7. Installation and Utility Requirements

Due to its size and operating capacity, the OSD-8100 requires appropriate installation planning.

The machine measures 1100 × 850 × 1350mm and weighs approximately 300kg. Suitable lifting equipment should be arranged for unloading, positioning, and installation.

The stated installation reference requirements include:

• Electrical Supply: 380V
• Reference Circuit Breaker: 100A
• Compressed Air Supply: Stable pressure of 0.5–0.8MPa
• Installation: Suitable floor space and access for lifting and maintenance

Final electrical cable sizing and protective device selection must be confirmed by qualified personnel in accordance with the machine’s electrical documentation and applicable local regulations.