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Sunnen has introduced the SV-1000 vertical CNC honing machine, which can scale up from a single-spindle machine to an automated multi-spindle unit for precise bore sizing and finishing.

The SV-1000 is suitable for part diameters of 3 to 65mm and can size bores to accuracies of 0.25 micron (0.00001in).

It is ideal for diesel fuel injectors, gears, small engine cylinders/connecting rods, hydraulic/pneumatic components and medical devices in medium to high volumes.

The basic single-spindle SV-1000 module is designed for future automation with removable side-enclosure panels to facilitate flow-through part processing.

It is available with a fixed tooling plate or servo rotary table with 12-position rotary air union for fixture control.

An industrial PC control ensures reliability and an easy support path with software-based updates and commercially available replacement parts.

The machine’s cast-polymer base provides excellent vibration damping and structural rigidity.

Fully automated versions of the SV-1000 can be specified with the servo rotary table or linear part transfer, integrated part handling systems and up to four spindles.

For unmanned cellular processing, the SV-1000 can be equipped with integrated post-process air-gaging to provide closed-loop control of bore size and geometry, along with downloadable SPC data and feedback control.

Post-process air-gaging with one-to-four servo columns can provide size, taper and straightness feedback control.

When matched with Sunnen’s diamond-plated CGT Krossgrinding tools or MMT multi-stone mandrels, the SV-1000 can automatically control hole-size to accuracies of 0.25 micron (0.00001in), eliminating the need for a skilled operator.

A match-honing package can also be added.

The machine features a servo-controlled stroking drive that responds smoothly to motion profiles generated by the control and a load-sensing tool-feed system that minimises processing time by sensing where and how much to hone the bore.

The new stroking drive provides high levels of flexibility and consistency in spindle reciprocation.

This enables the SV-1000 to carry-out conventional honing and single-pass honing with any tool in Sunnen’s line.

The vertical design of the SV-1000 conserves floor space; it measures 2400 x 2300 x 2700mm.

The high-torque belt-driven spindle is rated at 7.5kW (10HP) to cover a range of sizing and finishing work at speeds of 100-4000 rev/min.

For custom processing cells, Sunnen can provide post-process inspection and sorting of parts to the submicron level, along with special tooling, robotic integration, part orientation, gaging and other options.

Sunnen Products Company

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