Danobat IRDc

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

Danobat Overbeck IRDc grinding machine for canmaking tools, shown without enclosure

Image: danobat.com, Danobat

Key Specifications

max internal grinding diameter

100 mm (3.9 in)

max external grinding diameter

100 mm (3.9 in)

max external grinding length

254 mm (10 in)

max swing diameter

215 mm (8.5 in)

max workpiece weight incl clamping

80 kg (176 lb)

x axis travel

400 mm (15.75 in)

How much does the Danobat IRDc cost?

Price estimate

Uncertain

We do not have a price for the Danobat IRDc 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 Danobat IRDc is a single-purpose machine: an Overbeck grinder set up for regrinding the worn punches and dies of can production. Danobat says it handles every punch, ironing die and redraw die used in canmaking, and covers ID, OD, radius and profile grinding in one compact machine.

Its capacities follow from the tooling it serves. Internal and external grinding diameters both go up to 100 mm (3.9 in), and the external grinding length is 254 mm (10 in), which is punch territory. Swing is 215 mm (8.5 in) and the workpiece with its clamping system may weigh 80 kg (176 lb). Axis travels are 400 mm (15.75 in) in X and 300 mm (11.81 in) in Z, and the B0 axis swivels +91° / -15° so that nose radii and die back angles are ground in the same clamping as the diameters.

Danobat publishes results rather than spindle data. On dies it quotes Ra < 0.03 μm, runout < 2.5 μm and roundness tighter than 0.5 μm. On punches it quotes major diameters held to ±2.5 μm with surface finishes between Ra 0.05 and 0.08 μm. These are process outcomes on canmaking tools, so they depend on wheel, dressing and coolant as much as on the machine.

The second half of the offer is unattended running. The IRDc can be equipped with a robotic cell for dies, with shifts of up to 11 hours without operator intervention and up to 90 dies finished per load. DoGrind+ supplies pre-programmed cycles for standard geometries, automatic profile correction and a graphical catalog of saved custom shapes. The X and Z strokes, the swing and the B0 range are those of the IRD-300.

Full Specifications

Parameter	Value
Max Internal Grinding Diameter	100 mm (3.9 in)
Max External Grinding Diameter	100 mm (3.9 in)
Max External Grinding Length	254 mm (10 in)
Max Swing Diameter	215 mm (8.5 in)
Max Workpiece Weight Incl Clamping	80 kg (176 lb)
X Axis Travel	400 mm (15.75 in)
Z Axis Travel	300 mm (11.81 in)
B0 Axis Swivel	+91° / -15°
Die Grinding Results	Ra < 0.03 μm, runout < 2.5 μm, roundness tighter than 0.5 μm
Punch Grinding Results	major diameters ±2.5 μm, surface finish Ra 0.05 to 0.08 μm
Robotic Cell Capacity	up to 90 dies, shifts of up to 11 hours without operator intervention (optional robotic cell)

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

Strengths & Limitations

Strengths

Covers punches, ironing dies and redraw dies on one machine, with ID, OD, radius and profile grinding
External grinding length of 254 mm (10 in) for can punches, against 100 mm (3.94 in) on the IRD-300
Published die results: Ra < 0.03 μm, runout < 2.5 μm, roundness tighter than 0.5 μm
Optional robotic cell runs up to 90 dies and shifts of up to 11 hours without an operator
Pre-programmed canmaking cycles and automatic profile correction in DoGrind+

Limitations

Grinding diameters stop at 100 mm (3.9 in) inside and outside, so it is not a general-purpose grinder
The robotic cell is an option, and Danobat describes it for dies rather than for punches
No internal grinding length, spindle count or machine dimensions appear in the IRDc table
Software and cycles are dedicated to canmaking geometries

Best For

Can plants regrinding punches with up to 254 mm (10 in) of ground length Ironing and redraw die regrinding in unattended batches of up to 90 dies Tool rooms that want punch and die regrinding on one machine Tooling where nose radii, lands and back angles must be finished in one set-up

Frequently Asked Questions

01 What is the IRDc designed to grind?

Canmaking tooling. Danobat states it is built for canmakers to bring worn tools back into production and that it handles every punch, ironing die and redraw die used in canmaking. On punches it grinds the OD, steps and nose transitions; on dies the back angles, lands and faces, all in one clamping.

02 What accuracy does Danobat quote for the IRDc?

For dies: Ra < 0.03 μm, runout < 2.5 μm and roundness tighter than 0.5 μm. For punches: major diameters within ±2.5 μm and surface finishes between Ra 0.05 and 0.08 μm. They are stated as results on canmaking tools, not as machine positioning figures, and no axis accuracy is published.

03 How long can the IRDc run unattended?

With the robotic cell, Danobat describes shifts of up to 11 hours with no operator intervention, with up to 90 dies finished from one load. The cell is something the machine can be equipped with, so it has to be ordered. Automatic profile correction in the software is what keeps the profile consistent across such a run.

04 How is the IRDc related to the IRD-300?

The two share a 400 mm (15.75 in) X stroke, a 300 mm (11.81 in) Z stroke, a +91° / -15° B0 swivel and an 80 kg (176 lb) weight limit. The IRDc narrows the diameters to 100 mm (3.9 in) and lengthens external grinding to 254 mm (10 in), where the IRD-300 grinds bores up to 200 mm (7.87 in) over 100 mm (3.94 in).