WILLIS MACHINERY & TOOLS 4300 SERIES HORIZONTAL MACHINING CENTER

Technical Description

The Willis Machinery & Tools 4300 Series is a manual horizontal machining center engineered for precision turning operations. This machine features a robust single main spindle with a maximum turning diameter of 43 inches and standard turning length of 275 inches, accommodating large workpieces common in heavy fabrication and tool and die applications. The 18-inch chuck diameter provides secure workholding for extended machining sequences. With a maximum swing of 55 inches, the machine delivers substantial capacity for oversized components. The spindle operates at 1,250 RPM with 30 horsepower, with an optional 670 RPM configuration available for torque-intensive operations requiring deeper cutting forces. The two-axis design incorporates 22 inches of X-axis travel and 60 inches of Z-axis travel (expandable to 275 inches), enabling comprehensive longitudinal and lateral positioning. The slide-type primary tool carrier supports sequential single-tool operations, making it ideal for dedicated turning work where tool changes between operations are minimal. This configuration emphasizes rigidity and power delivery, characteristic of Willis's manual machinery line designed for reliability in tool rooms and fabrication shops. The machine balances ease of operation with the precision control required for demanding turning tasks, offering operators full manual command while maintaining consistent results across production runs. Built with solid construction and durable components, the 4300 Series represents a cost-effective solution for shops requiring dependable, powerful horizontal turning capacity without CNC complexity.