GT-9AC

Guidewire Grinding System

The Glebar Advantage

Traditional guidewire centerless grinders use sensors to detect the wire position and trigger diameter changes, limiting the number of tapers the system can produce. Since the GT-9AC has no sensors, there is virtually no limit to the number of tapers, and creating parabolic shapes is very easy. Traditionally, sensors or sensing systems must be physically moved by the operator or technician to change the profile or wire length. The GT-9AC accomplishes all of this automatically with a few taps of the touchscreen, significantly reducing setup time.

With a centerless grinder, as the slide retracts and part diameter increases, the rate of the part through the machine increases. With fixed sensors, there is no feedback in between sensor points to detect this change. This causes an unwanted non-linear or 'bowed' profile shape. The GT-9AC updates wire position constantly, so it is unaffected by changes to the wire feed rate. The result is crisp, clear tapers.

Glebar has over four decades of experience grinding guidewires in stainless steel, Nitinol, and other materials, with both conventional and superabrasive wheels.

Touchscreen HMI
Automation
Remote Connectivity
Template Tracing Dresser
Spool Feeding
Safety Enclosure
Multi-Part Grinding
Inline Gauging
Inline Cutting
Extractor Options
P4K Compatible (Offline Gauging)

Introducing the GT-9AC

  • The GT-9AC excels at precision grinding medical guidewires with multiple tapers, paddles, and even parabolic shapes, all at the fast speeds of a conventional centerless grinder.
  • Using the latest in high speed imaging technology and a 1 micron encoder the whole length of the feeder, the machine can update the position of the wire every 0.00025" (0.006 mm) at typical grinding speeds. Faster position updates result in better length accuracy and repeatability, allowing the GT-9AC to easily hold the tighter tolerances required by today's guidewires.
  • The GT-9AC has no fixed sensors or sensing banks! Changing wire length or wire profile is easy and takes only seconds.The maximum length of grind is limited only by the overall length of the feeding system. Things that were simply not possible before, like changing the speed of the regulating mid-profile, are accomplished effortlessly.
The GT-9AC has no fixed sensors or sensing banks! Changing wire length or wire profile is easy and takes only seconds.

GT-9AC Highlights

Stable Granite Bed

Stable Granite Bed

With the increased rigidity, thermal and mechanical stability of a granite bed, the results are improved blade life and more consistent setups.

Automatic Blade Sizing

Automatic Blade Sizing

Both the upper and lowers slides of the GT-9AC feature 0.1 um glass scale feedback, which allows for blades to be sized automatically on the machine; easy and repeatable.

No Sensors. No Problem.

No Sensors. No Problem.

Since the GT-9AC has no sensors, there is virtually no limit to the number of tapers, paddles and parabolic shapes which can be ground on this machine. Traditionally, sensors or sensing systems must be physically moved by the operator or technician to change the profile or wire length. With the GT-9AC, all of this is accomplished automatically with a few taps of the touchscreen, significantly reducing setup time.

Automatic Wheel Balancing and Acoustic Emission Sensing

Automatic Wheel Balancing and Acoustic Emission Sensing

A built-in automatic wheel balancing system dynamically adjusts and eliminates wheel vibration, producing superior surface finishes and improved wheel life. In addition, acoustic emission sensing allows for automatic touch-off and blade sizing to drastically reduce setup time.

Double-ended Grinds or Grinding Multiple Parts

Double-ended Grinds or Grinding Multiple Parts

Double-ended grinds or grinding multiple parts from the same wire is possible when using the optional Extractor. When combined with the Spool Cutter, it is possible to take NiTi or SLT® stainless directly from spool to finished part.

Intuitive HMI Controls

Intuitive HMI Controls

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.

P4K Compatible (Metrology Device)

P4K Compatible (Metrology Device)

Available P4K Gauging System serves as a closed-loop quality control device that feeds back diameter to the control system for automatic size compensation

Remote Connectivity

Remote Connectivity

Remote connectivity simplifies troubleshooting and maintenance. 

Key Features

  • Simple and easy to use 15" touchscreen interface
  • Reverse grind tracking “ Vision control system for reverse grinder” (patent pending)
  • Automatic wheel balancing and acoustic emissions system for ease of setup
  • Granite base
  • High performance controller
  • Fast load and unload. Fast cycle times
  • Automatic blade sizing, easy and repeatable
  • Available P4K Gauging System, serves as a closed-loop quality control device that feeds back diameter to the control system for automatic size compensation
  • Servo-driven variable speed regulating wheel drive
  • Clean and contained mist-free work envelope.
  • Simple, intuitive paddle adjustment
  • Work rest blade holder with built in ramp for simple height adjustment.
  • Stationary work wheel and regulating wheel dressers
  • Reliable vacuum loading system
  • Grind lengths not dependent on wire cut length
  • Secure remote troubleshooting and support available over the internet.
  • Supports any combination of English and Metric units (inch, cm, mm).
  • Multi-level password access.
  • CE certification and approved safety interlocks available
  • Feeder lengths: 6' (180 cm), 12.5' (380 cm), 16' (500 cm)

Specifications

  • Diameter Accuracy : .00005"
  • Grinding Diameter Capacity : .045"
  • Work Wheel Diameter : 9" (230 mm)
  • Work Wheel Power : 2HP
  • Work Wheel RPM : 2500
  • Regulating Wheel Diameter : 4" (100 mm)
  • Upper Slide Resolution : 0.1µm (0.000004")
  • Lower Slide Resolution : 0.1µm (0.000004")
  • Machine Footprint : 58"x31"x71" (147x79x180cm)
  • Machine Weight : 3520 lbs.
  • Maximum Wire Length : 16 feet
  • Minimum Wire Diameter : 0.0015"
  • Maximum Wire Diameter : 0.045"
  • Grinding Length : 15 feet
  • Wheel Size : 9"
  • Feeder Length resolution : 1µm (0.00004")
  • Tooling : 1.5" (38mm) and 3" (76mm) wide tooling. Existing tooling from the TF-9DHD, TF-9CPG, and TF-9BHD can be used.

Accessories

P4K Feedback Available

P4K Feedback Available

Available metrology device (P4K) which can serve as a closed-loop quality control device that feeds back diameter to the control system for automatic size compensation

Template Tracing Work Wheel Dresser

Template Tracing Work Wheel Dresser

Uses a formed template to dress shallow shapes into the grinding wheel. An auto dress version of this dresser available.

Template Tracing Regulating Wheel Dresser

Template Tracing Regulating Wheel Dresser

Uses a formed template to dress shallow shapes into the regulating wheel.

Mist Collector

Mist Collector

Collects and removes debri and dust from the work area.

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.

Programmable Part Extractor

Programmable Part Extractor

High-speed with programmable positioning, allowing for the fast grinding of double-ended grinds and faster part extraction, reducing cycle time.

Spool Cutter

Spool Cutter

The spool cutter provides the capability to grind nitinol wire directly off a spool. The feeder pulls and cuts wire to user determined length, and feeds it to the grinding machine.

Three-Stage Recirculating Coolant System

Three-Stage Recirculating Coolant System

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

Vacuum Feeding System

Vacuum Feeding System

10' (305 cm), 16' (500 cm) long wire/part loader and unloader interfaced to the machine control. Feeder will pick wires out of a bin, load them into machine, stage next part during grinding and unload finish part allowing hands-off machine operation.

Wire Cutter

Wire Cutter

Uses bushings for a burr free cut. Cutting wire after grinding provides the capability of grinding multiple short parts out of one long wire in one feeding operation, reducing cycle time.

Wire Extractor

Wire Extractor

Pulls finished part out of grind zone using gripper mechanism and places it in receiving tray. This system is ideal for handling short parts and often used in conjunction with the Wire Cutter.

Wire Feeder

Wire Feeder

Wire loader and unloader interfaced to the machine control. Feeder will pick wires out of a bin, load them into machine, stage next part during grinding and unload finished part.

Wire Trays

Wire Trays

Material staging trays for preground and finished ground wire

Select Case Studies

Select Components Ground on a Glebar GT-9AC

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.

Medical Guidewires

Read Case Study >

Please fill out as much information as possible. You will receive an email confirmation. One of Glebar engineers will contact you within 24 hours.

Contact Information

 

Files / Drawings Upload

If you have relevant drawings or illustration files, please upload them here. Files should be in .jpg, .pdf, or .tiff format and should be 10MB or less in size. If you need assistance regarding upload, please call us (201) 337-1500

General Information

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

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