Vertical CNC Honing System For Low- To Mid-Volume Machining

The SV-560 vertical CNC honing system from Sunnen combines a 60" (1,524-mm) stroke and 20-hp (15-kW) spindle for bores with diameters of 12" (300 mm) or larger, depending on the application. Capable of using legacy tooling from the GH-210 and SV-3/SV-4 machines, it is suited for low- to mid-volume machining of oil and gas industry components such as gas compressors, liner hangers, telemetry units, valves, pump liners and similar parts. Designed to provide high accuracy and quality surface finish, the honing system uses three-axis servo control of spindle rotation, stroke and tool feed to produce a whole-bore, constant crosshatch angle.

New Product Announcements From: 2/9/2009 Modern Machine Shop

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The SV-560 vertical CNC honing system from Sunnen combines a 60" (1,524-mm) stroke and 20-hp (15-kW) spindle for bores with diameters of 12" (300 mm) or larger, depending on the application. Capable of using legacy tooling from the GH-210 and SV-3/SV-4 machines, it is suited for low- to mid-volume machining of oil and gas industry components such as gas compressors, liner hangers, telemetry units, valves, pump liners and similar parts. Designed to provide high accuracy and quality surface finish, the honing system uses three-axis servo control of spindle rotation, stroke and tool feed to produce a whole-bore, constant crosshatch angle.  

The system’s electromechanical design delivers servo-accurate performance that remains consistent over time, eliminating the drift inherent to hydraulic machines, the company says. Capabilities include automatic geometry correction and auto-dwell for bore straightness, which is suited for use in blind bores. Vertical spindle orientation makes the machine ideal for interrupted bores, where the weight of the tool and drive shaft on a horizontal hone increase the potential for washout around ports, the company says.


The spindle permits high stock-removal rates on tough materials such as titanium and compacted-graphite iron. The machine is available with a standard spindle speed ranging to 300 rpm, with optional speeds of 600 or 1,200 rpm. Maximum stroke rate is 90 ft/min (27.4 m/min). 

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