Palmary OCD-4280P

Q: How much does the Palmary OCD-4280P cost?

The price estimate for the Palmary OCD-4280P is uncertain: we have no price for it that we can cite and no estimate we can stand behind, so we give no figure. Configuration, tooling, automation and installation move the final price substantially. A specific price can be requested at https://machinetoolindex.com/machines/palmary-ocd-4280p#price; the request is passed to Palmary or an authorised dealer.

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

Palmary OCD-4220P/4240P/4280P/42130P series CNC plunge cylindrical grinder

Image: palmary.com, Palmary

Key Specifications

swing over table

Ø420 mm (16.5 in)

distance between centers

800 mm (31.5 in)

max grinding diameter

Ø400 mm (15.7 in)

max load between centers

150 kg (331 lb)

wheel size

Ø455~510 x 50~80 x Ø127 mm

wheel peripheral speed

33 m/s (6,496 ft/min)

How much does the Palmary OCD-4280P cost?

Price estimate

Uncertain

We do not have a price for the Palmary OCD-4280P 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 OCD-4280P is an 800 mm (31.5 in) CNC plunge cylindrical grinder with angular wheelhead and Ø420 mm (16.5 in) of swing. It handles shafts with large flanges or rotors, up to Ø400 mm (15.7 in), that need several diameters and shoulders ground.

Its Z axis is long enough to treat such a part as a row of stations: 1,308 mm (51.5 in) of table stroke, driven by a 2.5 kW (3.4 hp) servo motor at 10 m/min (394 ipm). The X axis strokes 260 mm (10.2 in), and with a linear scale as standard each plunge is sized from the scale, not the screw.

Palmary's general description of these machines applies: a work spindle head on precision bearings, a wheel spindle of carburized, sub-zero treated alloy steel in hybrid hydro-static bearings, and a tailstock in an automatic oil bath. On this model the workhead motor is 1.5 kW (2.0 hp) and the table swivels to both sides, -3° to +8°.

The wheel is Ø455 to 510 mm by 50 to 80 mm on a 5.5 kW (7.4 hp) motor. Load between centers is 150 kg (331 lb), which for a part of this size usually means a hollow or modest shaft with a big flange, not a solid drum. Net weight is 4,800 kg (10,582 lb) and total power 18 kVA. FANUC control and full enclosure are standard.

Full Specifications

Parameter	Value
Swing Over Table	Ø420 mm (16.5 in)
Distance Between Centers	800 mm (31.5 in)
Max Grinding Diameter	Ø400 mm (15.7 in)
Max Load Between Centers	150 kg (331 lb)
Wheel Size	Ø455~510 x 50~80 x Ø127 mm
Wheel Peripheral Speed	33 m/s (6,496 ft/min)
X Axis Rapid Traverse	10 m/min (394 ipm)
X Axis Travel	260 mm (10.2 in)
X Axis Min Setting Unit	0.001 (0.0001) mm
Z Axis Rapid Traverse	10 m/min (394 ipm)
Z Axis Travel	1,308 mm (51.5 in)
Z Axis Min Input Increment	0.001 (0.0001) mm
Table Swivel Angle	-3°, +8°
Workhead Swivel Angle	-30°~+90°
Workhead Center Taper	M.T. No. 4
Work Spindle Speed	10-300 rpm
Max Load of Work Spindle	35 kg (77 lb) (max. length: 150 mm)
Tailstock Center Taper	M.T. No. 4
Tailstock Stroke	25 mm (1.0 in)
Tailstock Fine Adjustment Range	±0.03 mm (±0.0012 in)
Wheel Spindle Motor	5.5 kW (7.4 hp) (6P)
Workhead Motor	1.5 kW (2.0 hp) (4P) Frequency
Wheelhead Feed Motor	1.2 kW (1.6 hp)
Table Feed Motor	2.5 kW (3.4 hp)
Hydrostatic Pump Motor	0.37 kW (0.5 hp) (4P)
Wheel Spindle Lubrication Pump Motor	0.37 kW (0.5 hp) (4P)
Coolant Pump Motor	0.18 kW (0.2 hp) (2P)
Ballscrew Lubrication	Auto lubricator (LUBE)
Power Requirement	18 kVA
Wheel Spindle Lubrication Tank	31 L (8.2 gal)
Lubrication Tank	31 L (8.2 gal)
Hydraulic Tank	31 L (8.2 gal)
Ballscrew Lubrication Tank	0.7 L (0.2 gal)
Coolant Tank	120 L (31.7 gal)
Machine Weight	4,800 kg (10,582 lb)
CNC Control	FANUC CNC controller

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

Strengths & Limitations

Strengths

800 mm (31.5 in) between centers with Ø400 mm (15.7 in) grinding diameter
1,308 mm (51.5 in) table stroke on a 2.5 kW (3.4 hp) servo
Two-sided table swivel, -3° to +8°
Tailstock with automatic oil bath lubrication and ±0.03 mm fine adjustment

Limitations

150 kg (331 lb) between centers
5.5 kW (7.4 hp) wheel motor for a wheel up to 80 mm wide
4,800 kg (10,582 lb), the same as the longer OCD-42130P
Gauging and automatic wheel balancing are optional accessories

Best For

Flanged shafts and rotors up to 800 mm (31.5 in) Several plunge stations along one part Stepped spindles with large collars Shops moving from manual to CNC shoulder grinding

Frequently Asked Questions

01 What is the capacity of the Palmary OCD-4280P?

800 mm (31.5 in) between centers, Ø420 mm (16.5 in) swing over the table, Ø400 mm (15.7 in) maximum external grinding diameter and 150 kg (331 lb) maximum load between centers. The table stroke is 1,308 mm (51.5 in).

02 How does the OCD-4280P compare with the OCD-3280P?

Both have 800 mm (31.5 in) between centers and a 1,308 mm (51.5 in) table stroke. The OCD-3280P swings Ø320 mm (12.6 in) and weighs 4,300 kg (9,480 lb). The OCD-4280P swings Ø420 mm (16.5 in), has a 2.5 kW (3.4 hp) table feed motor and weighs 4,800 kg (10,582 lb).

03 Can the table of the OCD-4280P be swivelled for taper?

Yes, from -3° to +8°. The micro adjustment tailstock adds ±0.03 mm of fine adjustment, and the work spindle head swivels from -30° to +90°. The shorter OCD-4240P swivels its table 0° to 10° in one direction.

04 What power does the OCD-4280P need?

18 kVA in total. The wheel spindle motor is 5.5 kW (7.4 hp), the workhead 1.5 kW (2.0 hp), the wheelhead feed 1.2 kW (1.6 hp) and the table feed 2.5 kW (3.4 hp). Pump motors for hydrostatics, lubrication and coolant are listed separately.