Hardinge Kellenberger K10
Image: kellenberger.com, Hardinge
Key Specifications
X Travel
Z Travel
Max Spindle
Spindle Taper
Spindle Power
Max Workpiece ⌀
How much does the Hardinge Kellenberger K10 cost?
Estimated price range
Our best estimate for a cnc grinding machine in this class — not a quote from Hardinge. Configuration moves it a long way.
Overview
The Kellenberger K10 is a universal cylindrical grinder for parts under 400 mm (15.7 in) in diameter and up to 1,000 mm (39.4 in) long, built around a wheelhead that swivels through 240° on its B axis. That swivel is what lets one machine carry an external wheel and an internal spindle and present either to the part without a second setup.
Both spindles are rated 7.5 kW. The external side takes a Ø 400 x 63 mm or a Ø 500 x 80 mm wheel at a peripheral speed of 50 m/s. The internal spindle runs at 60,000 rpm, and bores up to 150 mm are within its listed capacity. With the same power on both sides, the internal spindle is not a light-duty attachment: a part with a bearing seat outside and a bore inside can be finished complete.
Capacity between centres is set by a 200 mm (7.9 in) centre height, a 1,000 mm (39.4 in) centre distance and a 100 kg (220 lb) workpiece limit. For chuck work the load rating is 100 Nm, which caps how far a heavy part may overhang the workhead. The weight limit is the figure to watch. A steel shaft that fills the diameter capacity would pass 100 kg long before it filled the length, so the K10 is a machine for long slender parts or short large-diameter ones, not both at once.
Z travel is 1,150 mm (45.3 in) and X travel 365 mm (14.4 in), with X moving at up to 10,000 mm/min (394 ipm). Axis resolution is 0.00001 mm and roundness is listed as 0.4 / 0.2 μm. The workhead turns at 1 - 1,000 rpm on an MT5 taper; the tailstock is MT4 with 49 mm (1.93 in) of stroke. Control is FANUC 0i-TF Plus under the BLUE Solution interface, on a 3.4 m × 2.2 m footprint.
Full Specifications
| Parameter | Value |
|---|---|
| Center Distance | 1,000 mm (39.4 in) |
| Center Height | 200 mm (7.9 in) |
| Max Workpiece Diameter | < 400 mm (15.7 in) |
| Max Workpiece Length | 1,000 mm (39.4 in) |
| Max Workpiece Weight | 100 kg (220 lb) |
| Z-Axis Travel | 1,150 mm (45.3 in) |
| X-Axis Travel | 365 mm (14.4 in) |
| Axis Resolution | 0.00001 mm |
| B Axis Swivel | 240° |
| Peripheral Speed | 50 m/s |
| Internal Bore Capacity | 150 mm max |
| Chuck Load | 100 Nm |
| CNC Control | FANUC 0i-TF Plus |
| Floor Space Required | 3.4 m × 2.2 m |
| Max Spindle Speed | 60,000 min-1 |
| Spindle Motor Power | 7.5 kW |
| Spindle Taper | MT5 |
| Rapid Traverse X | 10,000 mm/min |
| Positioning Accuracy | 0.4 / 0.2 μm |
| Max Turning Diameter | < 400 mm |
| Max Turning Length | 1,000 mm |
| Table Load Max | 100 kg |
| Power Supply | 400 V / 460 V |
| X Feed Rate | 10,000 mm/min (394 ipm) |
| Grinding Wheel Size | Ø 400 x 63 mm / Ø 500 x 80 mm |
| Grinding Spindle Power | 7.5 kW |
| Internal Spindle Power | 7.5 kW |
| Internal Spindle Speed | 60,000 rpm |
| Workhead Speed | 1 - 1,000 rpm |
| Workhead Taper | MT5 |
| Roundness Accuracy | 0.4 / 0.2 μm |
| Tailstock Taper | MT4 |
| Tailstock Stroke | 49 mm (1.93 in) |
| Hmi | BLUE Solution |
Specifications sourced from kellenberger.com — verified 2026-10-03
Strengths & Limitations
Strengths
- B axis swivels through 240°, so external and internal wheels reach the part in one clamping
- Internal grinding spindle of 60,000 rpm and 7.5 kW, with bore capacity up to 150 mm
- Choice of Ø 400 x 63 mm or Ø 500 x 80 mm external wheel at 50 m/s
- Axis resolution of 0.00001 mm; roundness listed as 0.4 / 0.2 μm
- Parts under 400 mm (15.7 in) in diameter and up to 1,000 mm (39.4 in) long on a 3.4 m × 2.2 m footprint
Limitations
- Workpiece weight limit of 100 kg (220 lb) is low for the diameter and length capacity
- Tailstock stroke is only 49 mm (1.93 in), so part length within a batch must be consistent
- Grinding spindle power of 7.5 kW is modest for the Ø 500 x 80 mm wheel option on full-width plunge cuts
- Only the X rate is published, at 10,000 mm/min (394 ipm); no Z rate or machine weight is listed
Best For
Frequently Asked Questions
01
External diameters, faces and bores. The wheelhead swivels through 240° on the B axis, bringing either the external wheel or the internal spindle to the part. The external wheel is Ø 400 x 63 mm or Ø 500 x 80 mm; the internal spindle is listed at 60,000 rpm and 7.5 kW, with an internal bore capacity of 150 mm max.
02
Diameter under 400 mm (15.7 in), length up to 1,000 mm (39.4 in) and weight up to 100 kg (220 lb). Centre height is 200 mm (7.9 in) and centre distance is 1,000 mm (39.4 in). The chuck load is listed at 100 Nm, which governs overhung parts held without tailstock support.
03
The Kellenberger K100 is the larger and more configurable machine: it is offered with centre distances of 600 / 1,000 / 1,700 mm, a B-axis swivel of 280° and a FANUC 31i-B control, with 370 mm (14.6 in) of X travel. The K10 comes in one length, 1,000 mm (39.4 in) between centres, with a 240° swivel, 365 mm (14.4 in) of X travel and FANUC 0i-TF Plus.
04
Axis resolution is listed as 0.00001 mm and roundness as 0.4 / 0.2 μm. The table shows the two roundness values without stating the condition for each, so ask which one applies to the quoted machine. X moves at up to 10,000 mm/min (394 ipm).
05
The workhead runs at 1 - 1,000 rpm and has an MT5 taper. The tailstock has an MT4 taper and a stroke of 49 mm (1.93 in). Power supply is 400 V / 460 V, and the control is FANUC 0i-TF Plus with the BLUE Solution operator interface.
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