Palmary PCB-6020-3
Image: palmary.com, Palmary
Key Specifications
grinding diameter range
wheel size
wheel peripheral speed
grinding wheel dressing device
regulating wheel size
regulating wheel speed
How much does the Palmary PCB-6020-3 cost?
Price estimate
We do not have a price for the Palmary PCB-6020-3 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 Palmary PCB-6020-3 is a 3-axis CNC centerless grinder with a Ø610 mm grinding wheel, 205 mm wide, on a bearing-type spindle. Its standard range is Ø2 to Ø80 mm, with Ø70 to Ø150 mm as an option.
The suffix is the axis count. Palmary describes the design as 3 axes of CNC control, extendable up to 6, built for high grinding accuracy and rigidity. Lower and upper slides are square slides moved by ball screw and reducer.
A Ø610 mm wheel is a third larger than the wheel of the PCB-4520, and the weight shows how much more machine stands behind it: 5,800 kg (12,787 lb). The regulating wheel is Ø330 mm by 205 mm, runs at 10 to 200 rpm, tilts ±5° and swivels ±0.5°. Wheel speed is 45 m/s (8,858 ft/min).
On one point the published table is no help. The rows that should give the grinding and regulating wheel motors are printed under lubrication labels, so this page leaves the motor ratings out; get them from the quotation. What the table does state clearly is the lubrication itself, oil mist for the grinding wheel spindle and grease for the regulating wheel spindle, and a 125 L (33.0 gal) coolant tank.
A FANUC CNC controller is standard. Palmary offers a high-speed loading and unloading attachment, custom loading devices and an outer diameter measuring device as options.
Full Specifications
| Parameter | Value |
|---|---|
| Grinding Diameter Range | Ø2~Ø80 mm (OPT. Ø70~Ø150 mm) |
| Wheel Size | Ø610 x 205 x Ø304.8 mm (24.0 x 8.1 x 12.0 in) |
| Wheel Peripheral Speed | 45 m/s (8,858 ft/min) |
| Grinding Wheel Dressing Device | Single-point dressing device / (opt.) Diamond roller dressing device |
| Regulating Wheel Size | Ø330 x 205 x Ø152.4 mm (13.0 x 8.1 x 6.0 in) |
| Regulating Wheel Speed | 10-200 rpm (variable speed) |
| Regulating Wheel Tilt Angle | ±5° |
| Regulating Wheel Swivel Angle | ±0.5° |
| Regulating Wheel Dresser Swivel Angle | ±5° |
| Regulating Wheel Dresser Offset | 0~15 mm |
| Lower and Upper Slide | Square slider, Ball screw + reducer |
| Grinding Wheel Spindle Lubrication | Oil mist type |
| Regulating Wheel Spindle Lubrication | Oil grease type |
| Slide Lubrication | Auto lubricator (LUBE) |
| CNC Control | FANUC |
| Coolant Tank | 125 L (33.0 gal) |
| Wheel Spindle Lubrication Tank | 1.0 L (0.3 gal) |
| Slide Lubrication Tank | 4 L (1.1 gal) |
| Machine Weight | 5,800 kg (12,787 lb) |
Specifications sourced from palmary.com — verified 2026-10-05
Strengths & Limitations
Strengths
- Ø610 mm grinding wheel at 45 m/s (8,858 ft/min)
- 3-axis CNC control as standard, extendable up to 6 axes according to Palmary
- 5,800 kg (12,787 lb) machine with square ball screw slides
- Optional range of Ø70 to Ø150 mm
Limitations
- Motor ratings are not clearly printed in Palmary's table for this model
- 205 mm wheel width on a machine of this size
- Regulating wheel speed tops out at 200 rpm
- Enclosure, linear scale and gauge are optional accessories
Best For
Frequently Asked Questions
01
Palmary describes the machine as designed for 3 axes of CNC control, with up to 6 axes possible. The related PCB-6020GF-4 is described as a 4-axis machine. The page does not list which three axes are fitted.
02
Ø2 to Ø80 mm as standard, with Ø70 to Ø150 mm listed as an option. The grinding wheel is Ø610 x 205 mm on a 304.8 mm bore and the regulating wheel Ø330 x 205 mm on a 152.4 mm bore.
03
The specification table on Palmary's page prints the motor rows under lubrication labels, so the ratings are not reproduced here. Ask Palmary to confirm the grinding wheel and regulating wheel motors for your configuration.
04
The PCB-6025-3 has 255 mm wide wheels and a 140 L (37.0 gal) coolant tank. The PCB-6020-3 has 205 mm wide wheels and a 125 L (33.0 gal) coolant tank. Both are listed at 5,800 kg (12,787 lb).