of bore sizing and finishing for more than 60 years.

Stellite Valve tandem bore "Faster than grinding, and easier to hold size Production Grinding Shop Grinding these little valves was a tough job. The time needed to hold size and finish kept production down to 10 or 15 parts per hour, With Sunnen Power-Stroked Honing, production has tripled and all specifications are exceeded (.375") long—open hole with unequal lands Material: Stellite, 45-50 Rockwell "C" Scale Honing Time per Part 20 seconds Previous Condition of Bore: Tolerances Held: KKN-6M Adjustable Finger Fixture, Neat Fixture used to lixture Valve

Hard Stainless Steel Hydraulic KKN-600 Adjustable Finger Fixture, Torque Abaorber which angagas llals Hydraulic Valve ready for honing "Honed these hydraulic valves to ± .005 mm minutes with manual honing!" Watford. England This company had no plans to buy a new hone- But when they saw the fantastic production increase possible with Sunnen Power Stroking, they quickly admitted it would be profitable to (1.75") long—open hole with ports Material: 440C Stainless SteeL 58-60 Rockwell Honing Time per Part 2 minutes Previous Condition of Bore: Tolerances Held:

Hard Steel open hole with keyway "Increased production from 27 parts per hour hand honing to 77 with the power stroker—that's almost triple!" Tool Manufaclurer This Sioux City firm was ready to replace an older hand-stroked Sunnen Hone. They took our saleman's word when he told them the Power Stroker was the machine they should choose Now you can take their word...and their production figures...to help you make up your mind. (1.875") long—open hole with keyway Material: B-1113 Leaded Steel Production Rate: 77 parts per hour Previous Condition of Bore: Tolerances Held: KKN-600 Adjustable Finger...

Hard Steel Tloor-lo-Hoor time per part less than 1/5 the time needed on art expensive automatic hone" Fuel Injection Mexico City, Mexico Part was being honed in two operations,,, ro.jqhing and finishing...on a big automatic hone. Floor-to-floor time was 7 minutes per part. With Sunnen Power Stroking, floor-to-floor time was (2.00") long—open hole with ports and grooves Material: Cold Drawn Steel, 50 Rockwell "C" Scale KKN-600 Adjustable Finger Fixture, HF-75 Workholder, and KKN-720A Fingers uaed Stock Removal: .125 mm (.005") Honing Time per Part: 50 seconds Barrel ready tor honing Previous Condition...

Stainless Steel Seal Housing open hole with ports "Improved production from 28 pieces per hour manual honing to 69 per hour with stroked' Liquid Flow Measuring Equipment Manufacturer Manufacturing Engineers for this company saw the Sunnen Stroker at the Westec Show in Los Angeles... investigated it.,.and found that it would save them more than enough to justify its (.75") long—open hole with ports Material: 303 Stainless Steei Production Rate: Previous Condition of Bore: Tolerances Held: Customer-Made Spring-Loaded Plunger to pick up cross-hole in part, KKN-600 Adjustable Finger Fixture, and...

Aluminum Body— long with cross holes KKN-600 Adjustable Finger Fixture, HF-2CQ Workholder, and KKN-720A Fingers used Body ready for honing "Improved production from 8 pieces per hour manual honing to 15,..that's 2 holes, roughing Liquid Flow Measuring Equipment Manulaclurer Reducing costs is a major goal of this company. Their Manufacturing Engineering Department investigated Sunnen Power Honing and found that they could show Management the kind of savings that made the purchase of a new Stroker well Nature ol Part: Two 11-13 mm (.438") holes—one Open hole with cross holes. Production Rate: 15...

Steel Selector open hole "Increased production 10 times over I.D. grinding, and less scrap...using an operator with a lower labor grade. Production Shop Customer was fixturing 25 Selectors at a time and I.D. grinding at 15 minutes per load. Problems: Too much time in setup, high scrap rate, high labor grade, low production. Customer switched to Power-Stroked Honing, is now honing 85 parts at a time in 4 minutes with minimal scrap...and doing it with a lower labor grade operator. Material: Mild Steel Honing Time: 4 minutes per fixture load of 85 Previous Condition of Bore: Tolerances Held: KKN-700...

Hard Steel Roller ^ KKN-60O Adjustable Finger Finlure, HF-7S Workholder, and KKN-72QA Fingers used Rollers ready for honing 2 pj a time "We've been sending out our honing because we thought it was too difficult to do. When we found out how easy Sunnen Power Stroking is. we started doing our own honing." Conveyor Manufacturer West Germany This Machine Shop had a large volume of gear blanks and hardened rollers to produce. They had been jobbing out their honing and living with the related uncertainties in scheduling and work flow because they thought honing was a difficult job. A demonstration...

Valve Guide open hole "We get 22 pieces per hour now versus 12 per doesn't work nearly as hard: DieseL Engine Parts Supplier Taipei, Taiwan This company has manufactured this part for many years. Then competition forced them to cut their price, and they had to find ways to cut production costs. They did...with Sunnen Power Honing, Material: Meehanite, Heat Treated to 360-390 Production Rate: 22 per hour Previous Condition of Bore: Tolerances Held: KKN-400 Adjustable Finger Fixture, HF-30O Workholder, and KKN-720A Fingers used to fixture Valve Guide Valve Guide ready for honing

KKN-500 Adjustable Finger Fixture. Fixture used to fixture Outer Races Outer Races ready lor honing Hard Steel Outer Race "We get better pads from the Stroker with high school summer help than we did from the grinder with a skilled journeyman running it." Specially Bearing Manufacturer When this customer switched trom l.D. grinding to Power Honing, right away he improved finishes, eliminated heat checks, and got closer tolerances all with a brand new operator! His only question was, "Sunnen, what took you so long?" Material: 8620 Steel, 60 Rockwell "C" Scale Production Rate: 80-100 per hour (honed...