Precision Bore Honing Machines

In high volume applications, Engis precision bore honing systems are the unsurpassed solution for forward thinking manufacturers to improve roundness, concentricity and finish.

For nearly 40 years, Engis Corporation has been at the leading edge in single-pass bore finishing technology. Known throughout the world for our application knowledge, full system solutions and superior after-sale service, Engis is committed to:

State-of-the-Art Equipment and Tooling

We provide end-to-end system solutions with full automation packages and robotic parts handling.
We offer standard machine designs as well as custom engineered platforms.
Our engineering team has proven solutions for the finishing of both through and blind bores.
We design and manufacture flexture tooling for exceptional cylindricity and roundness.
Engis is a leader in seating tool technology.
We also offer deburring stations and associated tooling.

NEW AT IMTS 2024 - ENGIS BOOTH 236726

STREAMLINE YOUR HIGH-PRECISION TIGHT TOLERANCE HOLE FINISHING

The new Engis Hybrid solution streamlines workflow by integrating single-pass bore finishing with a multi-stroke honing process in a single machine, thereby reducing the number of steps required to achieve tight tolerances and high precision when finishing bored components.

The new technology allows users to achieve exceptional precision when finishing bore components. It also produces sharper, burr-free corners on cross holes and metering edges within the part. The Hybrid can easily be automated producing up to 120 parts/hour.

This single-step system, designed for high-volume production of hydraulic cartridge valves and servo valve bushings, can finish hundreds of thousands of bores annually - transforming rough bores into finished products more efficiently and with greater throughput.

Engis Hybrid Bore Honing Machine Benefits:

Full CNC controls
Higher precision (bore size control within 1 micron)
Sharper corners on cross-holes and metering edges
Increased efficiency and production rates
Less manual intervention
Automatic gauging and size compensation of the roughing process
Reduced floor space requirement
Lower overall cost per piece

Small Production Machine (SPM)

The SPM series of machines is designed to meet the needs of job shops for small to medium size parts. Available in 4, 6, 8 and 10 spindle models, these systems are primarily for bores up to 51mm (2”) diameter.

Features:

Servo fed column design
457mm (18”) stroke
Mitsubishi full CNC controls capable of supporting optional advanced features
Class 7 duplex spindle bearings
1-1/16” diameter ASA spindles
Pre-lubricated for life linear slides and ball screw
Pneumatic counterbalance on head
Electro-mechanical, cam-style precision indexer

Optional Configurations Include:

Extended stroke lengths
Higher horsepower motors (UM)
Siemens, Allen-Bradley or Schneider electric controls packages

Large Production Machine (LPM)

The LPM series of machines is designed to meet the needs of job shops for medium to large size parts. Available in 4, 6 and 8 spindle models, these systems are primarily for bores up to 152mm (6”) diameter.

Features:

Servo fed column design
635mm (25”) stroke
Mitsubishi full CNC controls capable of supporting optional advanced features
Class 7 duplex spindle bearings
1-3/8” diameter ASA spindles
Pre-lubricated for life linear slides and ball screw
Pneumatic counterbalance on head • Electro-mechanical, cam-style precision indexer

3-Axis Flexible Performance Machine (FPM-3X)

Manufacturers of large hydraulic valve bodies face a challenge aligning and finishing bores once the bodies have been stacked. The FPM-3X enables bore finishing after stacking of the valves, improving overall cylindricity and roundness.

Features:

Linear bearing vertical slide with ball screw feed and 750mm (30”) stroke
BT-40 style spindle with hydraulic drawbar arrangement
X-Y axis linear bearing horizontal slide base
8 – 13 pocket automatic tool changer
Wireless probe system for precise bore location

Customized Machine Designs

Not every bore finishing application fits neatly onto a standard machine platform. In those cases, our engineers will design a unique system around the application which will optimize the part geometry at minimal cycle times and costs. With over thirty years of application and manufacturing experience, you can have confidence that a custom solution from Engis® will put you ahead of your competition and on the cutting edge of your industry. We have a number of custom designed bore finishing solutions for the hydraulic, automotive, compressor and firearm markets in full production throughout the world.

Customized Machine Designs Examples from the Specialty Series:

In-line transfer system
Concentricity establishing model
Automated pressing, polishing and bore finishing model
Multi-column system for large parts including bore finishing, gauging, brushing, face deburring and marking
Machines with special multi-spindle arrangements capable of simultaneously finishing multiple bores in a part

Advanced Gauging Systems

Computer aided gauging solutions with multiple graphical output formats
Static and dynamic air gauging for precision bore geometry analysis
Real-time data insures improved process control
Complete statistical process control (SPC) and customized data reporting
Report data to any or all of the following: machine, cell or customer’s network
Industrial tool size reporting via custom routines