Glebar PG-912DG

Specs verified 2026-10-05 · glebar.com Updated 2026-10-05

Image: glebar.com, Glebar

Key Specifications

wheel size

9 in (229 mm) diameter x 12.625 in (321 mm) wide

work wheel power

15 hp (11 kW)

grinding diameter capacity max

4 in (102 mm)

grinding diameter capacity min

0.002 in (0.05 mm)

infeed rate

0.01-0.4 in/sec (0.25-10.2 mm/sec)

work wheel surface speed

5,780 surface feet

How much does the Glebar PG-912DG cost?

Price estimate

Uncertain

We do not have a price for the Glebar PG-912DG 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.

Overview

The Glebar PG-912DG is an enclosed centerless form grinder with a work wheel 12.625 in (321 mm) wide, wider than the 10.125 in (257 mm) wheel of the PG-9DHD. It plunge grinds spheres and cylindrical forms from 0.002 in (0.05 mm) up to 4 in (102 mm) in diameter, and the extra wheel width is there to fit more parts into each plunge. Glebar reports throughput gains of as much as 30% in its own testing.

Servo motors set the oscillating regulating wheel to a pre-programmed position, and that adjustment is the slow step on a form grinder at changeover. From the same testing Glebar reports a Cpk two times greater than the process being replaced, which it credits to precise positioning. The controller is described as multi-axis, the operating mode is plunge, and infeed rate is adjustable from 0.01 to 0.4 in/sec.

The work wheel is 9 in (229 mm) in diameter on a 15 hp (11 kW) spindle, and wheel surface speed is listed as 5,780 surface feet. The platform is granite, which Glebar cites for rigidity and for thermal and vibration stability. Golf ball cores are the example part shown for this model.

The enclosure is interlocked so that it cannot be opened while the grinder runs, and it makes the machine tall: 76.5 x 48.25 x 94 in (194 x 123 x 239 cm), at 3,700 lb (1,678 kg). Automated feeding systems can be mounted at the top or at the side, depending on the application. Supply is 480 VAC, 3PH, 60 Hz at 40 A, and air is 3 CFM at 80-90 PSI.

Full Specifications

Parameter	Value
Wheel Size	9 in (229 mm) diameter x 12.625 in (321 mm) wide
Work Wheel Power	15 hp (11 kW)
Grinding Diameter Capacity Max	4 in (102 mm)
Grinding Diameter Capacity Min	0.002 in (0.05 mm)
Infeed Rate	0.01-0.4 in/sec (0.25-10.2 mm/sec)
Work Wheel Surface Speed	5,780 surface feet
Platform	Granite
Operational Mode	Plunge
Controller	Multi-axis
Power Requirement	480 VAC, 3PH, 60 Hz, 40 A
Air Requirement	80-90 PSI, 3 CFM
Machine Dimensions	76.5 x 48.25 x 94 in (194 x 123 x 239 cm)
Machine Weight	3,700 lb (1,678 kg)

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

Strengths & Limitations

Strengths

12.625 in (321 mm) wide work wheel grinds more parts per cycle; Glebar reports throughput up by as much as 30% in testing
Servo motors move the oscillating regulating wheel to a pre-programmed position, shortening setup
Enclosed as standard, with interlocks that prevent opening while the grinder is running
Granite platform and a 15 hp (11 kW) work wheel spindle
Handles part diameters from 0.002 in (0.05 mm) to 4 in (102 mm)
Touchscreen HMI with remote connectivity and data collection

Limitations

At 76.5 x 48.25 x 94 in (194 x 123 x 239 cm) it needs far more room than the PG-9DHD at 47 x 39 x 50 in (119 x 99 x 127 cm)
Weighs 3,700 lb (1,678 kg), against 2,000 lb (908 kg) for the PG-9DHD
Glebar's table for this model gives no roundness or slide resolution figure, so tolerance capability has to be confirmed on sample parts
Spindle power is listed only as 15 hp (11 kW); the PG-9DHD offers 7.5 hp (5.6 kW) and 10 hp (7.5 kW) motors as well

Best For

High-volume ball grinding such as golf ball cores Form grinding where an interlocked enclosure is required Multiple parts per plunge across a 12.625 in (321 mm) wheel Spherical and cylindrical forms up to 4 in (102 mm) in diameter Lines with automated top or side feeding

Frequently Asked Questions

01 How wide is the work wheel on the Glebar PG-912DG?

The work wheel is 9 in (229 mm) in diameter and 12.625 in (321 mm) wide. Glebar describes it as a 12 in wide work wheel that lets manufacturers grind more parts per cycle, and says throughput increased by as much as 30% in testing.

02 What part sizes can the PG-912DG form grind?

Maximum grinding diameter is 4 in (102 mm) and minimum is 0.002 in (0.05 mm). The machine works in plunge mode, with an infeed rate of 0.01 to 0.4 in/sec, so the form is ground into the part in one infeed motion.

03 How does the PG-912DG differ from the PG-9DHD?

It has a wider wheel, 12.625 in (321 mm) against 10.125 in (257 mm) on the PG-9DHD, a granite platform and a full interlocked enclosure as standard, and servo positioning of the oscillating regulating wheel. It is also larger and heavier: 3,700 lb (1,678 kg) against the PG-9DHD's 2,000 lb (908 kg).

04 What services does the PG-912DG require?

A 480 VAC, 3PH, 60 Hz supply at 40 A and 3 CFM of air at 80-90 PSI. The machine measures 76.5 x 48.25 x 94 in (194 x 123 x 239 cm) and weighs 3,700 lb (1,678 kg), so check door heights and rigging routes as well as floor space.