Meler SF20 Industrial Hot Melt System, 5.3 Gallon Unit

High-Capacity, Easy-to-Use Hot Melt System for Automated Packaging and Production Lines

The SF20 is a high-capacity, easy-to-use hot melt adhesive machine engineered for demanding packaging environments that require continuous adhesive supply and consistent performance. With a 5.3 gallon tank and a melting capacity of up to 43.9 lbs/hr, it supports higher throughput for automated packaging lines, multi-line systems, and high-speed production environments. Its gear pump design provides stable adhesive flow across multiple outputs, ensuring consistent application in bead and swirl processes.

Built to function as a reliable industrial hot melt system for packaging, the SF20 emphasizes temperature stability, operational efficiency, and ease of maintenance. The system supports up to four hose connections, allowing multiple application points to operate from a single unit. Advanced temperature control helps preserve adhesive properties while minimizing degradation during long production runs, while its accessible design simplifies maintenance and integration into high-demand packaging lines.

System Capabilities of the SF20 High-Capacity Hot Melt System

• High-Capacity Adhesive Supply: Engineered to support continuous operation in high-throughput packaging environments.
• Multi-Hose System Capability: Supports up to four hose connections for efficient multi-point adhesive application across production lines.
• Consistent Flow Under Demand: Gear pump design maintains steady adhesive output during extended production runs.
• Optimized Thermal Control: Stable temperature management preserves adhesive properties and ensures consistent bonding performance.
• Production-Ready Integration: Designed for seamless integration into automated packaging systems and multi-line setups.
• Accessible Maintenance Design: Simplified internal access reduces cleaning time and supports faster service in demanding environments.

Technical Specifications

• Model: SF20
• Tank Capacity: 5.3 Gallons (20 L)
• Melting Rate: 43.9 lbs/hr (19.9 kg/hr)
• Pumping Capacity: Varies by pump size and operating conditions
• Compatible Materials: PSA (Pressure Sensitive Adhesives), EVA, and Polyolefin (PO) Hot Melt Adhesives
• Pump Type: Gear pump (8 cc/rev)
• Number of Hose Outputs: Up to 4
• Number of Electrical Outputs: 4
• Temperature Range: 104 to 392°F (40 to 200°C)
• Temperature Control: RTD ±1°F (±0.5°C)
• Maximum Working Pressure: 1,160 psi (80 bar)
• Power Consumption: ~4.0 kW (approximate)
• Electrical Requirements: 400V, 3-phase, 50/60 Hz + PE
• Ambient Temperature: 32 to 104°F (0 to 40°C)
• Dimensions (L × W × H): 30.3" × 15.6" × 23.8" (770 × 395 × 605 mm) – lid closed
• Weight: 147 lbs (66.5 kg) – empty

Meler SF20 — Available Configurations & Options

The SF20 is built as a scalable industrial hot melt system with configuration options that support higher-capacity and automated packaging environments. Its flexible setup allows it to integrate into demanding production lines while maintaining consistent, high-output performance.

• Hose & Output Configuration: Supports up to four hose connections for efficient multi-point adhesive application across production lines.
• Pump & Output Control: Available with multiple pump size options and variable speed control to support higher-demand applications.
• Bypass & Pressure Control: Configurable with mechanical or pneumatic bypass valves, with optional pressure control systems for stable operation under load.
• Sensor & Monitoring Options: Supports selectable sensor types and low-level detection for improved system monitoring in continuous operation.

Common Packaging Applications

• Case Sealing
• Carton Sealing
• Tray Forming
• Automated Packaging Lines
• High-Speed Packaging Systems

Explore Other Meler SF Series Models

• SF4 – Compact system for low-volume applications
• SF10 – Mid-capacity system for balanced output and flexibility