GROB G440
Key Specifications
X Travel
Y Travel
Z Travel
Spindle Taper
Tool Capacity
Rapid Traverse
How much does the GROB G440 cost?
Estimated price range
Our best estimate for a horizontal machining centers (hmc) in this class — not a quote from GROB. Configuration moves it a long way.
Overview
The GROB G440 belongs to GROB's 4-axis machine series. Its work envelope is a cube, 800 mm in each of X, Y and Z, with an 800 mm interference diameter and a 500 x 500 mm pallet; a 500 x 630 mm pallet is selectable.
The interface list is unusually wide. Next to HSK-A63 and HSK-A100 it includes SK40, BT40 and CAT40 as well as SK50, BT50 and CAT50, so a shop with an existing stock of steep-taper holders in either size can keep using it. The G550, by contrast, is listed with HSK-A63 / HSK-A100 only. Five spindle versions are given: 63 Nm at 30,000 rpm, 83 Nm at 12,000 rpm, 206 Nm at 16,000 rpm, 265 Nm at 13,000 rpm and 340 Nm at 10,000 rpm. The table does not pair each spindle with an interface, so the quotation has to.
Magazine size is equally open. With HSK-A63 the magazine holds 50, 117, 177 or 237 tools, and the smallest and largest of those are also listed for SK40. With HSK-A100 it holds 57, 87, 117, 172 or 238 tools, the 117-tool version also for SK50. A cell that runs many part numbers unattended can therefore be specified with 237 tools on HSK-A63 or 238 tools on HSK-A100.
Rapid traverse is at most 70 m/min in X and 60 m/min in Y and Z. The control is Siemens Sinumerik ONE with GROB4Pilot. Table load, machine weight, chip-to-chip time and accuracy are not in GROB's table for this model.
Full Specifications
| Parameter | Value |
|---|---|
| X-Axis Travel | 800 mm |
| Y-Axis Travel | 800 mm |
| Z-Axis Travel | 800 mm |
| Rapid Traverse Rate | 70/60/60 m/min (X/Y/Z, max.) |
| Interference Diameter | 800 mm |
| Pallet Size | 500 x 500 mm (500x630 mm selectable) |
| Spindle Taper | HSK-A63, SK40, BT40, CAT40, HSK-A100, SK50, BT50, CAT50 |
| Spindle Versions | 63 Nm, 30,000 rpm; 83 Nm, 12,000 rpm; 206 Nm, 16,000 rpm; 265 Nm, 13,000 rpm; 340 Nm, 10,000 rpm |
| Tool Capacity | 50 (HSK-A63/SK40); 117 (HSK-A63); 177 (HSK-A63); 237 (HSK-A63/SK40); 57 (HSK-A100); 87 (HSK-A100); 117 (HSK-A100/SK50); 172 (HSK-A100); 238 (HSK-A100) |
| CNC Control | Siemens Sinumerik ONE (GROB4Pilot) |
Specifications sourced from grobgroup.com — verified 2026-10-03
Strengths & Limitations
Strengths
- Eight interfaces listed: HSK-A63, SK40, BT40, CAT40, HSK-A100, SK50, BT50 and CAT50
- Cubic envelope of 800 mm in X, Y and Z with an 800 mm interference diameter
- Magazines from 50 to 237 tools with HSK-A63 and from 57 to 238 tools with HSK-A100
- Five spindle versions, from 63 Nm at 30,000 rpm to 340 Nm at 10,000 rpm
- Pallet of 500 x 500 mm, with 500 x 630 mm selectable
Limitations
- Listed in the 4-axis machine series, so 5-axis work belongs on a model such as the G550
- Y travel is 800 mm and Z travel 800 mm, against 1,020 mm and 970 mm on the G550
- Table load, machine weight, chip-to-chip time and positioning accuracy are not listed
- The table does not say which spindle version goes with which interface or magazine
Best For
Frequently Asked Questions
01
GROB lists HSK-A63, SK40, BT40 and CAT40 in the smaller size and HSK-A100, SK50, BT50 and CAT50 in the larger. The table does not state which of the five spindle versions is supplied with which interface, so settle that in the quotation.
02
With HSK-A63: 50, 117, 177 or 237 tools, the 50 and 237 versions also listed for SK40. With HSK-A100: 57, 87, 117, 172 or 238 tools, the 117 version also listed for SK50. Tool length and weight limits are not in the table.
03
Five versions: 63 Nm at 30,000 rpm, 83 Nm at 12,000 rpm, 206 Nm at 16,000 rpm, 265 Nm at 13,000 rpm and 340 Nm at 10,000 rpm. No power figures are given, and none of the five is marked as standard.
04
The pallet is 500 x 500 mm, with 500 x 630 mm selectable. Travels are 800 mm in X, Y and Z and the interference diameter is 800 mm. Rapid traverse is at most 70 m/min in X and 60 m/min in Y and Z.
Videos
GROB-WERKE GmbH & Co. KG
ALLMATIC-Jakob Spannsysteme GmbH
More from GROB
Other Horizontal Machining Centers (HMC)
SW BA 711 space
OKK HM 630
You Ji HMC1000
DMG Mori NHX 8000
Feeler FMH-500
