Single-Pass Honing Systems

The Single-pass honing/bore finishing process involves a series of pre-set diamond coated tools that get passed through a bore with a single in-and-out stroke movement while the tool, part, or both are rotating.

Product Focus:

Single-Pass Bore Finishing Process
Superior Quality
Comparison of Conventional and Single-Pass
Single-Pass Bore Finishing vs. Conventional Honing

Conventional hole finishing/bore honing utilizes a tool with cutting surfaces that expand and contract as the tool reciprocates in the bore through the cycle. Unfortunately, simultaneous radial and axial movement makes controlling bore size (ID) and geometry (cylindricity) more difficult. Conversely, the Engis single-pass bore finishing process uses fixed-size bore finishing tools electroplated with diamond abrasive particles. These tools pass through the bore only once, removing a specific amount of material. Using a series of progressively larger bore finishing tools (coated with progressively finer superabrasive particles) enables precise and repeatable control.

Shortest Cycle Times in the Industry

Because Engis single-pass technology spreads the workload over a range of tools on an indexing table, cycle times can be dramatically reduced versus conventional stroke honing or other finish bore operations.
The Engis system optimizes a combination of software, in-process sensors and sophisticated engineer
ing to achieve the most efficient cycle times.
Our application engineers have decades of experience working in-house in our laboratories, as well as in the field, to improve customers’ part quality and productivity.
Engis Single-Pass Process spreads the workload over a series of high-precision electroplated diamond too
Superior Quality with Engis Single-Pass

With Engis single-pass bore finishing technology, extremely tight tolerances (such as 0.0005mm) on bore geometry can be maintained under production conditions.
The improved bore geometries translate directly into productivity gains and major reductions in costs.
The Engis system is user-friendly, the need for skilled operators in the honing department can be reduced dramatically, or even completely eliminated.
Engis has solutions for blind bores, components with windows and roll-over burrs, as well as long stroke applications such as gun barrels

Engis bore finishing systems bring new cost-saving efficiencies to operations the world over through our: • superior design • integrated controls • automation systems With Engis single-pass bore finishing technology, extremely tight tolerances (such as 0.0005mm) on bore geometry can be maintained under production conditions. The improved bore geometries translate directly into productivity gains and major reductions in costs. And since the Engis system is also user-friendly, the need for skilled operators in the honing department can be reduced dramatically, or even completely eliminated. We provide complete, customized automation packages, including both in-bound and out-bound product flow. From pick-and place units and robotics, to in-process gauging and sensor systems, to conveyor systems linking automated machining cells, Engis is capable of helping you design, engineer, test and deploy the right solution. Engis Diamond Plated Bore Finishing Tools The Key to High-Precision Finishing Engis is a world recognized authority in both the manufacturing and application of precision bore finishing tools. Our engineers have successfully resolved a myriad of difficult application challenges maintaining sub-micron bore tolerances without sacrificing cost or cycle times.

Single-Pass is the Manufacturers’ Choice in Industry

Hydraulic
Medical
Pneumatic
Ceramic
Compressor
Gear
Aerospace
Precision Machining
Powdered Metal
Firearms
Wire Die
Automotive
Connecting rods
Rocker arm
Tappet bores
Cam & crank bores
Fuel systems
Steering systems
Brake systems
Turbo chargers
Transmission components