106-3 - Koike Style 106-3 Propane Cutting Nozzle

Industrial Grade Koike Style 106-3 Cutting Tip

The GEN106-3 is a premium aftermarket replacement cutting tip designed to be fully compatible with Koike style oxy-fuel torches. Engineered specifically for use with alternative fuels such as Propane and Natural Gas, this tip utilizes a 2-piece construction method. Unlike standard acetylene tips, 2-piece tips feature a separate brass inner member with splines and a copper outer shell. This configuration creates a skirted preheat flame that anchors the burning gas close to the tip face, preventing the flame from blowing off—a common issue when using slower-burning gases like propane at high pressures.

This specific nozzle is a Size #3, which is typically rated for cutting mild steel plate in the range of 30mm to 40mm (approximately 1.5 inches). The tip features a chrome-plated exterior, which serves a dual purpose: it protects the underlying copper from oxidation and corrosion, and it provides a slick surface that resists the adhesion of molten slag and spatter during the cutting process. This ensures the tip remains cleaner for longer, reducing downtime required for maintenance.

For industrial MRO operations, the GEN106-3 offers a cost-effective solution without compromising on cut quality. The internal gas passages are precision-drilled to ensure a laminar oxygen stream, resulting in narrow kerfs and square cut edges that require minimal secondary grinding. Whether used in scrap demolition, structural fabrication, or general maintenance, this tip delivers consistent thermal performance. It is designed to fit standard torches that accept the 106 series nozzle geometry, making it a versatile addition to any tool crib stocking parts for Koike-compatible equipment.

Proper gas pressure settings are critical for optimal performance. Operators should consult the pressure charts relevant to Koike 106 series tips to ensure the correct preheat and cutting oxygen pressures are applied for a Size #3 tip. This ensures the maximum cutting speed and quality are achieved while maintaining safe operating conditions.