GT‐610 CNC

Infeed/Thrufeed Precision Centerless
Grinding Systems

The Glebar Advantage

Glebar's GT-610 CNC outperforms larger competing machines, which require a much larger footprint and grinding wheels so large and heavy, a crane is required to change them. It offers high horsepower, high rigidity and superior slide positioning. Through intelligent control and design, the G-ratios (part volume removed divided by wheel volume used) can exceed machines twice its size, all while maintaining better roundness, diameter, and taper tolerances.

Touchscreen HMI
Automation
Remote Connectivity
Spindle Options
Safety Enclosure
Multi-Part Grinding
Inline Gauging
CNC Wheel Dresser
P4K Compatible (Offline Gauging)
CNC Regulating Wheel Dresser

Introducing the GT‐610 CNC

  • The GT-610 CNC is the complete “lights-out” solution for applications where a high degree of automation, data gathering and gauging feedback is required. The GT-610 CNC weighs over 8,000 pounds and built on a mineral cast base for rigidity, vibration and thermal stability.
  • Glebar's vast experience and unique infeed grinding technology shine in this higher precision machine tool, able to process challenging components, such as titanium aerospace fasteners, arthroscopic shavers, bone drill blanks and small powdered hard metal components.
  • This fully automated system is capable of grinding and gauging multiple components (up to 8 - or more) to a high degree of precision. Configurable with pick/place gantries or six-axis robots, this machine ensures a hands-off, high production or frequent changeover operation with the assurance of automatic size compensation and 100% inspection.
  • The GT-610-CNC includes integrated two-axis CNC work-wheel and regulating wheel dressers capable of dressing an 8.625-in. (219mm) wide grinding wheel and a 10" (254mm) wide regulating wheel. Another available option is our patent pending programmable work rest blade, which adjusts the lateral position of the parts (when grinding).
Glebar's GT-610 CNC outperforms larger competing machines, which require a much larger footprint and grinding wheels so large and heavy, a crane is required to change them.

GT‐610 CNC Highlights

Rigid Mineral Cast Base

Rigid Mineral Cast Base

The GT-610 CNC weighs over 8,000 pounds and built on a mineral cast base for rigidity, vibration and thermal stability.

Independent Slides for Quick Setup

Independent Slides for Quick Setup

The GT-610 CNC's two independent slides (upper and lower), which control the regulating wheel and the work rest blade position, holding the part being ground in place, provide significantly easier and quicker set up than competing systems. The multi-axis controller can position both grinding wheel slides to a resolution of 0.1 micron (0.000004”).

Workhead Assembly

Workhead Assembly

The machine comes standard with a 10" work wheel with super precision twin grip spindle. A 12" diameter work wheel option with cantilever spindle design -- for frequent and easy changeover is also available. Constant surface speed monitors grinding wheel circumference and adjusts spindle rotational speed to maximize grinding efficiency.  

Movable Work Rest Blade

Movable Work Rest Blade

Glebar’s patent pending programmable motorized work rest blade option adjusts the lateral position of the parts (when grinding), which is ideal when controlling a radius behind a fastener head or when grinding the tip of an arthroscopic shaver, for example.

CNC Work Wheel & Regulating Wheel Dressers

CNC Work Wheel & Regulating Wheel Dressers

The CNC work wheel dresser incorporates 0.1 micron linear scales on both axis and a high-speed roll dress spindle, single point dressing also available. The CNC regulating wheel dresser allows for the dressing of complex shapes to achieve optimal diameter and roundness accuracy.

Controls and Custom Software

Controls and Custom Software

The control software is entirely developed at Glebar and is fully customizable to address your application and process. The intuitive touch screen interface allows for ease of use and flexibility. The machine software interface was developed to allow an unskilled operator to run many high precision machines simultaneously. 

Automatic Wheel Balancing System

Automatic Wheel Balancing System

A built-in automatic wheel balancing system dynamically adjusts and eliminates wheel vibration, producing superior surface finishes and improved wheel life. 

Automation and OPC

Automation and OPC

As with other high performance Glebar machines, the GT-610 CNC can be fitted with robots, pick-and-place gantries, cleaning and drying stations, laser inspection systems and more to provide a truly hands-off turnkey solution for high production grinding applications that demand ultimate precision. OPC interfacing to supervisory plant controls is also available to gather production data and track maintenance and critical operational statistics.

Remote Connectivity

Remote Connectivity

Remote connectivity simplifies troubleshooting and maintenance.

P4K Compatible (Metrology Device)

P4K Compatible (Metrology Device)

The P4K serves as a setup reduction device while providing feedback of the entire component geometry for all parts in a cycle to automatically correct the grinding wheel dress shape (correcting the wheel dress shape from any measurement device is patent-pending).

Explore

Titanium Aerospace Fastener Grinding 

When a requirement exists to infeed grind aerospace components in a high production environment using a high level of automation, the GT-610 CNC significantly outperforms alternative processes. Before finding Glebar, the customer had to grind one component at a time on a rebuilt Cincinnati machine. In order to meet their demand, they needed several machines with a dedicated operator on each machine. Glebar’s GT-610 CNC gives them the capability of running millions of fasteners per year (8 pieces at a time) to micron precision. The machine provides automatic size compensation by station, and the machine can run 12,000 parts before redressing the wheel on certain components. The GT-610 CNC wheel life was much greater than that of their larger Cincinnati.

Cutaway of GT-610 CNC Automated Fastener Grinding Process

Key Features

  • A proven technology for grinding multiple parts per cycle on a 10" or 12" diameter grinding wheel
  • On the 10" work wheel model, a super precision twin grip spindle is our standard design
  • On the 12” model, a cantilevered spindle was designed for very frequent grinding wheel changes when running many different parts
  • CNC work wheel and regulating wheel dressers are standard
  • High-production, lights-out grinding capability
  • Ease of changeover and setup for short production runs
  • High-precision, angular contact ABEC 7 bearings on the regulating wheel spindle
  • Super high rigidity roller guides with 0.1 micron scale feedback on the ram and ram bed & CNC work wheel dresser
  • Patent-pending controlled, motorized work rest blade slide adjusts (while grinding) lateral position of parts
  • Quick Change Gripper assembly (patent pending) for rapid changeover from one set of part holding grippers to a different set (i.e. 8 station to 5 station) - the entire gripper assembly is easily disconnected, lifted out of the keyed mount, and then dropped into the next mount and reconnected
  • Automatic wheel balancing and acoustic emissions system for ease of setup
  • Auto dress feature to set redress after grinding a set number of parts
  • Servo regulating wheel drive
  • 15 HP in small form factor
  • 10 to 15 minute wheel change
  • Variable speed grinding wheel drive
  • Intuititive HMI touch screen operator interface
  • Inline part diameter feedback to the control system allows the machine to correct the wheel dress profile for size variation by station
  • Available setup reduction metrology device (P4K) which scans and provides feedback of the entire component geometry for all parts in a cycle to automatically correct the grinding wheel dress shape (correcting the wheel dress shape from any measurement device is patent-pending)
  • Machine is fully serviceable in the field
  • CE certification available
  • Offline wheel dressing options to decrease downtime

Specifications

  • Diameter Accuracy : better than 0.00005” (1.27 microns)
  • Grinding Diameter Capacity : MAX 2.0” (50.8mm) - MIN 0.002” (0.05mm)
  • Roundness : better than 0.00004” (1.02 microns)
  • Work Wheel Diameter : 10” (254 mm) or 12” (305mm)
  • Work Wheel Power : 15HP (11kW)
  • Work Wheel RPM : 500 – 2500
  • Work Wheel Length : 8-5/8” (219mm)
  • Regulating Wheel Diameter : 6” (152 mm)
  • Regulating Wheel Power : 2HP (1.5kW )
  • Regulating Wheel RPM : 10 - 400
  • CNC Dresser Y Resolution : 0.1μm (0.000004”)
  • CNC Dresser X Resolution : 0.1μm (0.000004”)
  • Upper Slide Resolution : 0.1μm (0.000004”)
  • Lower Slide Resolution : 0.1μm (0.000004”)
  • Machine Weight : 8100 lbs.

Accessories

Setup Reduction Metrology Device (P4K)

Setup Reduction Metrology Device (P4K)

Available setup reduction metrology device (P4K) which scans and provides feedback of the entire component geometry for all parts in a cycle to automatically correct the grinding wheel dress shape (correcting the wheel dress shape from any measurement device is patent-pending)

Bowl Feeder

Bowl Feeder

Designed to part specifications and integrated with machine controls. Custom feeding is available built to part specification.

Conveyors

Conveyors

Built specific to the part, Glebar offers a variety of conveyors which move parts through the process seamlessly and quickly.

Eddy Current System

Eddy Current System

An electromagnetic testing method used in nondestructive testing (NDT) making use of electromagnetic induction to detect and characterize surface and sub-surface flaws in conductive materials.

Gantry Pick & Place

Gantry Pick & Place

Built specific for the part, the gantry picks and places parts in the grind zone in one motion.

In-Line Gauge

In-Line Gauge

Diameter contact gauge mounted on exit side of the machine measures the ground part. Diameters at several points can be measured, used for size compensation, and compared against high and low user-defined limits. Contact measurement is unaffected by coolant.

Mist Collector

Mist Collector

Collects and removes debri and dust from the work area.

Movable Work Rest Blade

Movable Work Rest Blade

Glebar’s patent pending controlled motorized work rest blade option adjusts the lateral position of the parts (when grinding), which is ideal when controlling a radius behind a fastener head, for example.

Off-machine Wheel Balancing System

Off-machine Wheel Balancing System

Comes with arbor, flange with four weights and stand. Balanced grinding wheels are critical for high precision parts.

On-machine Wheel Balancing System

On-machine Wheel Balancing System

A built-in automatic wheel balancing system dynamically adjusts and eliminates wheel vibration, producing superior surface finishes and improved wheel life. 

On-machine Acoustic Emissions

On-machine Acoustic Emissions

Integrated acoustic emissions system for ease of setup.

Post Process Gauging

Post Process Gauging

Post grinding and cleaning, the data is collected, analyzed and fed back to the machine for automatic size compensation. Measurements are shown on a trend graph on the machine control.

Part Counter

Part Counter

Built specific for the part; integrated into the cell.

Precision Singulation Segregation

Precision Singulation Segregation

System engineered and developed by Glebar to separate the incoming parts and inspect each part individually at a fast rate (as fast as 2 parts-per-second in a recent case study) after exiting the vibratory bowl as a continuous row of parts.

Pressure Washing System

Pressure Washing System

Post grinding, system is integrated into the cell to pressure clean parts.

Programmable Side Feeder

Programmable Side Feeder

Both Z and X axis of feeder have velocity and position control set on the machine touch screen.

Quick Change Gripper (patent pending)

Quick Change Gripper (patent pending)

For rapid changeover from one set of part holding grippers to a different set (i.e. 8 station to 5 station). The entire gripper assembly is easily disconnected, lifted out of the keyed mount, and then dropped into the next mount and reconnected.

Robot Pick & Place

Robot Pick & Place

Automatically picks parts from trays, loads into machine, unloads and places back to parts tray. Fully guarded and interlocked access doors. Robot arm incorporates two grippers for staging the loading and unloading during the grind cycle, reducing idle time.

Roller Outboard Support

Roller Outboard Support

Supports and facilitates the material rotation at the entry and exit sides of the grinding machine. Typically used in a thrufeed operation.

Three-Stage Recirculating Coolant System

Three-Stage Recirculating Coolant System

30 gallon capacity with two removable settling tanks centrifugal pump & filtration package

Step Feeder

Step Feeder

Integrates into cell, built specific for the part.

Select Case Studies

Select Components Ground on a Glebar GT‐610 CNC

Below is a sample of select components Glebar has ground, on this machine, over the years. Please contact us and send us your drawing for a personal consultation.

Precision Punches

Read Case Study >

Medical Bone Drill Blank

Read Case Study >

Burnishing Tools

Read Case Study >

Asthma Inhaler

Read Case Study >

Arthroscopic Shavers

Read Case Study >

Aerospace Fasteners

Read Case Study >

Automotive Bearing
Carbide Drill Blank
Engine Valve
Fuel Injector Nozzle Valve

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Contact Information

 

Files / Drawings Upload

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General Information

Need help or have questions?
Please contact Mark Bannayan at 201-644-2020 or mbannayan@glebar.com.

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