SV-15 Honing Machine

July 11,2016

Sunnen's new SV-15 honing machine combines the DNA of the legendary Cylinder King machine with a new 9" Siemens touchscreen PLC to provide more features, convenience and even greater precision and consistency than the "King" of motorsports honing. The multilingual control provides a real-time display of the bore shape, allowing the operator to confirm bore straightness and make on-the-fly adjustments to correct taper or simply confirm the action of the auto-dwell feature that efficiently concentrates honing action in tight spots. The control automatically switches from roughing cycle to finishing cycle for fast processing with the optimum finish, geometry and crosshatch angle. Precise zero shutoff ensures consistent size control, bore after bore. One hundred setups can be stored in the control, which can be backed up via the control's USB port.

The SV-15 is a versatile automatic cylinder hone capable of handling bore diameters from 0.750" to 8" (19-203 mm) and lengths up to 11" (279 mm) for all types of blocks, from single-cylinder and high-performance engines to diesel truck and industrial blocks up to 46" (1,168 mm) long. The SV-15's standard multiposition rollover fixture handles inline and most 60°/90° V-type automotive blocks, and the optional CK-6200 clamp kit expands the range of blocks that can be accommodated.

With separate spindle and stroker motors – 3 hp/2.25 kW and 1 hp/ 0.75 kW, respectively – the SV-15 can run standard Sunnen tools as well as the DH-series diamond hone head. Encoder-controlled stroker position ensures precision overstroke control and repeatability. High surface contact with the multipoint DH tool enhances bore roundest for excellent sealing with today's thinner rings. Variable spindle and stroker speeds – adjustable while in cycle – enable infinite crosshatch angles for any bore diameter and cylinder length combination.

The machine's updated safety features now include Siemens Sinamics drives for fast response times, reduced maintenance and long-term reliability. The honing fluid reservoir/filter system holds 55 gallons (206 liters). Removable settling tanks, screens, filter cartridges (two) and filter status gauge simplify maintenance.

Related Glossary Terms

  • concentrates


    Agents and additives that, when added to water, create a cutting fluid. See cutting fluid.

  • fixture


    Device, often made in-house, that holds a specific workpiece. See jig; modular fixturing.