Single-Pass Honing Bore Finishing Machines


In high volume applications, Engis Single-Pass bore finishing systems are the unsurpassed solution for forward thinking manufacturers to improve roundness, concentricity and finish.

For more than 35 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.

State-of-the-Art Equipment and Tooling

Bore Finishing Machine

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

Bore Finishing MachineLarge 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

Bore Finishing MachineCustomized 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

 Bore Finishing MachineAdvanced 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

Contact Bore Finishing Team!