Graco 25B303 InvisiPac GM100 Quad Hot Melt Applicator with 24 VDC Solenoid and Ni 120 RTD - I Module Spacing

Graco InvisiPac GM100 Quad Adhesive Valve Overview

Configured with four applicator modules in an I-spacing layout, the Graco 25B303 InvisiPac GM100 quad hot melt applicator is built for clean, reliable adhesive dispensing in high-speed carton and case sealing lines. The quad configuration supports precise dot and stitch placement across multiple dispense points while maintaining consistent adhesive flow. Its plug-free design helps eliminate nozzle plugging and reduce adhesive char, minimizing downtime and supporting stable operation in continuous packaging environments.

When integrated with the Graco InvisiPac Tank-Free Hot Melt Delivery System—including HM10, HM25c, and HM50 models—the GM100 delivers clean adhesive flow across the entire dispensing system. The applicator uses a 24 VDC solenoid valve for dependable high-speed cycling and a Ni 120 RTD for accurate temperature monitoring. With a heat-up time of under 10 minutes and I-style module spacing (contact us for dimensions), this quad configuration is well suited for packaging line equipment that requires precise module alignment and consistent high-speed adhesive application.

Looking for another Graco InvisiPac GM100 configuration? View the full GM100 applicator lineup here.

Carton Sealing Advantages of the Graco 25B303 Quad Hot Melt Applicator

• Quad Module Configuration: Four adhesive modules are combined into a single applicator body to support multi-point adhesive application on high-speed carton and case sealing lines.
• I-Style Module Spacing: Built with I-style module spacing (contact us for dimensions) to allow defined placement of each module where machine layouts require specific spacing.
• Plug-Free Adhesive Design: The InvisiPac™ free-flow adhesive path reduces adhesive char and helps prevent nozzle plugging by eliminating internal dead zones.
• Electrical Components: Uses a 24 VDC solenoid valve and a Ni 120 RTD to provide reliable valve actuation and accurate temperature monitoring during continuous operation.
• Pneumatic Operation: Operates using air-opened, air-closed actuation to control adhesive flow consistently across all four modules.
• Fast Heat-Up Time: Reaches operating temperature in approximately 10 minutes, helping production lines return to operation quickly after startup or maintenance.

Model Specifications

• Series: InvisiPac GM100
• Model: 25B303
• Type: Hot Melt Applicator
• Style: Quad
• Number of Modules: 4
• Module Spacing: I - contact us for dimensions
• Mode of Operation: Air Opened, Air Closed
• Speed: > 10,000 cycles/minute
• Heat-up Time: 10 minutes to 350°F (176°C) at 240 VAC
• Heater: 240 V
• Solenoid Valve Voltage Rating: 24 VDC
• RTD Type: Ni 120 RTD
• Maximum Working Fluid Pressure: 1,500 psi (10.3 MPa, 103 bar)
• Minimum Working Air Pressure: 65 psi (0.44 MPa, 4.4 bar)
• Maximum Working Air Pressure: 80 psi (0.50 MPa, 5.5 bar)
• Suitable for Wash Down Applications: Yes
• Approvals and Standards: UL 499 Listed, CSA88, CE, ISO 9001