SH-4000 Honing Machine Processes a Variety of Part Sizes and Configurations

Originally titled 'Honing Machine Processes a Variety of Part Sizes and Configurations'

Sunnen's SH-4000 power-stroked honing machine merges a Siemens touchscreen PLC and digital-servo drives with a servo-hybrid tool feed system, extreme repeatability and clear adjustable guard/light.

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Sunnen's SH-4000 power-stroked honing machine merges a Siemens touchscreen PLC and digital-servo drives with a servo-hybrid tool feed system, extreme repeatability and clear adjustable guard/light. The machine is engineered as an easy-to-use, flexible hone for medium to high production of parts with bore diameters from 1.5 to 101.6 mm (0.060" – 4.0"). It is capable of processing a variety of part sizes and configurations and cutting a variety of materials quickly and efficiently. It features a 4.1-kW (5-hp) spindle drive and 1.1-kW (1.5-hp) stroker drive, with stroke travel up to 392 mm (15.43 in). Spindle speed is infinitely adjustable from 200 to 3,000 rpm, with stroke rates of 10 to 550 spm.

With the SH-4000, cutting pressure can be adjusted in 4.5 N (1 lbf) increments to a new maximum of 2,224 N (500 lbf) – double the maximum of earlier models. The digital system provides feed control at low pressures for improved honing results with small-diameter parts. The higher cutting pressure, plus two-step honing capability, ensures short cycle times. Two-step honing allows high stock removal coupled with a precise finish step, all in one operation. In addition, the new tool feed system includes 20 mm (0.79") additional travel for increased diameter range when using high-production MMT tooling.

The servo ballscrew stroker is designed to deliver precision and repeatability for honing in blind bores, while a longer stroke length of 392 mm (15.43") allows the machine to take on deeper bores, the company says. For fastest setup, the machine's stroking system can be controlled with a joystick on the operator station.