Line Boring LB25

Category: Aline Boring Equipment, Boring, Line Boring

The Winona Van Norman LB Series Line Boring Machines are designed to deliver the precision, rigidity, and reliability required for accurate line boring of engine blocks and other critical components. Built for professional engine rebuilding, remanufacturing, and high-production machine shops, the LB Series restores main bearing bores to exact specifications, ensuring proper crankshaft alignment, bearing fit, and optimal engine performance. Its robust design provides the stability necessary to consistently achieve tight tolerances across automotive, diesel, marine, and industrial engine applications.

Engineered for superior machining performance, the LB Series features exceptionally heavy cast iron base castings that virtually eliminate deflection during operation. Precision-machined surfaces and universal fixturing securely position workpieces for maximum accuracy, while the fully gear-driven boring bar rotation and feed system, powered by a dependable 2 HP motor, delivers smooth, chatter-free cutting and greater durability than traditional belt-driven machines. Variable speed and feed controls allow operators to optimize machining parameters for different engine block materials and bore sizes, while conveniently positioned controls provide continuous monitoring and precise adjustments throughout the boring process.

Designed to maximize productivity, the Winona Van Norman LB Series incorporates an extended spindle travel that allows multiple bores to be completed with fewer interruptions for tooling repositioning, reducing setup time and increasing shop efficiency. Combining heavy-duty construction, precision engineering, and long-term reliability, the LB Series delivers the accuracy, repeatability, and dependable performance professional machine shops rely on for superior line boring results year after year.

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