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Glebar PG-9X20DHD

Glebar PG-9X20DHD centerless form grinder

Image: glebar.com, Glebar

01

Key Specifications

grinding diameter capacity

Min 0.002 in (0.05 mm) – Max 4 in (100 mm)

work wheel diameter

9 in (229 mm)

work wheel length

20 in (508 mm)

work wheel power

15 hp (11 kW)

work wheel speed

2,400 rpm

regulating wheel power

2 hp (1.5 kW)

02

How much does the Glebar PG-9X20DHD cost?

Price estimate

Uncertain

We do not have a price for the Glebar PG-9X20DHD that we can stand behind, so we show no number. Configuration, options and installation move the final price a long way: a quote is the reliable figure.

Glebar PG-9X20DHD — price

Price estimate: uncertain

We have no price for the Glebar PG-9X20DHD that we can cite and no estimate we can stand behind, so this page shows no number rather than a guess. A quote from Glebar or an authorised dealer is the reliable figure.

What moves the final price

  • Spindle, control and probing options
  • Tool changer capacity and tooling package
  • Automation — pallet changers, bar feeders, robot cells
  • Freight, rigging, installation and training
  • Region, dealer and time of year

Want a specific price for the Glebar PG-9X20DHD?

Tell us who you are and we'll pass your request to Glebar or an authorised dealer.

03

Overview

The Glebar PG-9X20DHD is a centerless form grinder stretched to a 20 in (508 mm) work wheel, built for forming long ceramic and carbide blanks while they are still soft. Glebar names unfired carbide and the crystal quartz glass boules used for fibre optics as the target work, ground to near net size. Maximum grinding length is 20 in (508 mm), and part diameter runs from 0.002 in (0.05 mm) to 4 in (100 mm).

It sits on the compact base of the PG-9DHD, and the comparison shows what changed. The PG-9DHD has a 10.125 in (257 mm) wheel and grinds up to 10 in (254 mm) of length. This machine roughly doubles both, and the regulating wheel is extended to match, so several components can be ground at once along the wheel. Spindle power is 15 hp (11 kW) only. Wheel speed is 2,400 rpm, and the regulating wheel runs 10-400 rpm on 2 hp (1.5 kW).

The slide assembly is hard chromed, with a stated resolution of 0.1 micron, and the regulating wheel side is driven by a servo motor. Slide velocity and position are set on a touch-screen HMI running custom-designed software on an industrial workstation. A diamond work wheel of this length is not something to lift by hand, so the machine has a built-in hoist for removing the wheel and spindle assembly.

Listed size is 47 x 39 x 50 in (119 x 99 x 127 cm) and listed weight 1,800 lb (817 kg). Both are worth confirming with Glebar when a machine is specified, because the PG-9DHD is listed at 2,000 lb (908 kg) with a wheel half as long. Services are 480 VAC, 3PH, 60 Hz at 40 A and 3 CFM of air at 80-90 PSI.

04

Full Specifications

Parameter Value
Grinding Diameter Capacity Min 0.002 in (0.05 mm) – Max 4 in (100 mm)
Work Wheel Diameter 9 in (229 mm)
Work Wheel Length 20 in (508 mm)
Work Wheel Power 15 hp (11 kW)
Work Wheel Speed 2,400 rpm
Regulating Wheel Power 2 hp (1.5 kW)
Regulating Wheel Speed 10-400 rpm
Machine Weight 1,800 lb (817 kg)
Grinding Length Max 20 in (508 mm)
Power Requirement 480 VAC, 3PH, 60 Hz, 40 A
Air Requirement 80-90 PSI, 3 CFM
Machine Dimensions 47 x 39 x 50 in (119 x 99 x 127 cm)

Specifications sourced from glebar.com — verified 2026-10-05

05

Strengths & Limitations

Strengths

  • 20 in (508 mm) work wheel and matching regulating wheel grind several components at once
  • Maximum grinding length of 20 in (508 mm), against 10 in (254 mm) on the PG-9DHD
  • Hard chromed slide assembly with a stated resolution of 0.1 micron
  • 15 hp (11 kW) work wheel spindle at 2,400 rpm
  • Built-in hoist for removing the diamond work wheel and spindle assembly
  • Servo-motor driven regulating wheel side, set from a touch-screen HMI

Limitations

  • Designed around soft-state ceramics and carbide; Glebar gives no roundness figure for this model
  • Spindle power is 15 hp (11 kW) only, where the PG-9DHD offers 7.5 hp (5.6 kW) and 10 hp (7.5 kW) as well
  • Listed weight of 1,800 lb (817 kg) is below the PG-9DHD's 2,000 lb (908 kg) despite the longer wheel, so confirm weight and footprint before planning the installation
  • A 20 in (508 mm) diamond wheel is a heavy consumable that needs the hoist for every change
06

Best For

Unfired tungsten carbide rod formed to near net size Crystal quartz glass boules for fibre optics Long ceramic components up to 20 in (508 mm) Batches of shorter parts ground side by side along the wheel
07

Frequently Asked Questions

01 What was the Glebar PG-9X20DHD designed to grind?

Ceramic components such as unfired carbide, and the crystal quartz glass boules used to produce fibre optics. The carbide is form ground in the soft state to near net size, which removes material far more easily than grinding it after sintering.

02 How does the PG-9X20DHD differ from the PG-9DHD?

It is built on the PG-9DHD base with the work wheel and regulating wheel extended to 20 in (508 mm). Maximum grinding length rises to 20 in (508 mm) from the PG-9DHD's 10 in (254 mm). Work wheel diameter, 9 in (229 mm), and the part diameter range up to 4 in (100 mm) are the same on both.

03 What are the wheel and spindle figures for the PG-9X20DHD?

The work wheel is 9 in (229 mm) in diameter and 20 in (508 mm) long, driven by 15 hp (11 kW) at 2,400 rpm. The regulating wheel has a 2 hp (1.5 kW) drive with a speed range of 10-400 rpm, and its side of the machine is servo-motor driven.

04 How is the long work wheel changed on the PG-9X20DHD?

The machine has a built-in hoist for removal of the diamond work wheel and spindle assembly. With a wheel 20 in (508 mm) long that is the practical way to handle it, and the hoist is part of the listed feature set.

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