Portable Line Boring Systems

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Model 1500 Components

Axial Feed Assembly

The axial feed assembly sets the BoreMaster 1500 apart from other portable line-boring machines in its class. It automatically feeds in either direction and has a 2" maximum stroke. It can even machine longer bores if necessary. (See directions for machining longer bores).

Two self-lubricating bearings are built into the feed assembly, eliminating the need for additional bearing supports. The feed assembly is attached to the boring bar by a setscrew and to the work by being bolted directly to the stand-off legs, which are then welded or clamped to the work.

Boring Bar

The basic BoreMaster 1500 includes a 48" long, 1.25" diameter boring bar. The boring bar is broached, every 4.0", to accept 3/8" square cutting tools. The cutting tool is locked in position by a setscrew. One end of the boring bar is machined to accept

a standard 1/2" drill chuck. Bores larger than 4.0" in diameter should be bored using the optional 4.0" - 6.0" boring head.

		Tail Bearing The tail bearing supports the boring bar on the opposite end of the axial feed assembly. It consists of a self-aligning, self-lubricating sleeve bearing. The bearing is supported by a steel adapter plate which is bolted to two stand-off legs which are secured to the work piece.

		Self-Aligning Set-Up Cones These steel cones allow even an inexperienced operator to easily position the boring bar on the existing bore centerline. The boring bar slides through the set-up cones which are then secured to the boring bar by two setscrews. The set-up cones will hold the boring bar in place while the axial feed assembly and tail bearing are secured to the work. Once they are secured the set-up cones are removed.
Optional
		4.0" - 6.0" Diameter Boring Head The optional boring head provides smooth, accurate bores from 4.0" to 6.0" in diameter. It can be positioned any place along the boring bar and is secured by simply tightening a setscrew. The optional boring head also accepts 3/8" square cutting tools.

		Axial Feed Adapter Plate The axial feed head adapter plate is required when boring diameters larger than 4.0". The adapter plate provides a flexible way of attaching the stand-off legs to the axial feed head. The adapter plate is bolted to the axial feed head. The stand off legs bolt to the adapter plate.

		Micrometer-Adjustable Tool Setter The micrometer-adjustable tool setter provides for precision setting of the depth of the cut. The tool setter attaches to the boring bar with a magnetic base. The micrometer reaches through the tooling hole in the bar and adjusts the radial position of the cutting tool.

		4.0" - 6.0" Alignment Cones The self-aligning set-up cones enable the operator to accurately position the boring bar in bores between 4.0" - 6.0" in diameter.