G-SERIESThe new G750 and G750T – 5-Axis Universal Machining Center

… to meet all your growth requirements!

G-SERIES G750 AND G750T

THE SOLUTION FOR EVERY DEMAND – THE SOLUTION FOR EVERY DEMAND – The new G750 and G750T!The new G750 and G750T!

The universal machining center G750 and G750T is another highlight

in our G-series and complete the line of machining centers G350,

G550, and G550T.

No matter if you want to mill and turn with a spindle in a fixed horizon-

tal position or if you need to machine with 5 axes simultaneously taking

advantage of the complete tool-length in all possible angles – the G750

and G750T offer you all the flexibility you are looking for.

YOUR ADVANTAGES:

• Easily accessible work area

• Optimum chip removal for dry, wet, and minimum quantity lubrication machining

• Horizontal spindle position combined with a very long travel in Z-direction

Workpiece envelope AB-Axis (max.) Workpiece envelope AB-Axis (max.) [mm]

Ideal axis configuration for precise machining of large part sizes

A- and B-axes driven by torque motors

Many different spindle options available to meet your requirements

Hirth couplings machining forces are transmitted directly to the housing and do not apply any load on the spindle bearings

Meeting your demands for automation: Machine available with or without a pallet changer

Pallet size 800 x 800 mm or 800 x 1,000 mm

Best suitability for the integration in your automation processes

Turning option also available

Machine can be configured for light metal and steel

G750 Highlights

sphere R725

Ø 1,280

835

450

Center A-Axis

top edge of rotary table

110

G750 ALL DATAAT A GLANCE

SlidesWorking travels in X / Y / Z axis [mm] 1,000 / 1,100 / 1,170

Speeds (max.) in X / Y / Z axis [m/min] 60 / 50 / 75

Acceleration (max.) in X / Y / Z axis [m/s2] 7

Feed force (max.) in X / Y / Z axis [kN] 12

Accuracy (ISO230-2 Third edition 2006-03-15)

> Two-sided position uncertainty A on X / Y / Z axis [mm] 0.006

Two-sided repeat precision of positioning R on X / Y / Z axis [mm] 0.004

Main spindle options

Drive

Tool magazine Double disc magazineDisc magazine HSK-A63 HSK-A100

Number of pockets; Standard 2x 60 2x 30

Tool length max. [mm] front/back 650 / 500 650 / 500

Tool diameter max. [mm]

> no diameter restriction for neighboring positions 68 130

> diameter restriction for neighboring positions 160 250

Tool weight max. [kg] 8 22

Tool moment in gripper max. [Nm] 12 40

ComponentPallet loads [kg] 1,050

Table loads [kg] 1,500 **

Maximum interference diameter Ø [mm] 1,280

Connection ratingsPower requirement at 400 V 3-phase / 50 Hz [kVA] at least 42

Compressed air [bar] 5

Weight (approx.)Total weight [kg] (without / with pallet changer) 33,000 / 36,000

OptionsAutomatic pallet changer [mm] 800 x 800

Tool magazine expansion TM 152 (HSK-A100) / TM 167 (HSK-A63)

>

Toolholder for short hollow taper tools to DIN 69 893 HSK-A100

Spindle bearing diameter of front bearing [mm] 100 110

Speed nmax [rpm] 10,000 9, 000

Drive power max. at 100 % / 40 % duty cycle [kW] 20 / 26 54 / 65

Spindle torque max. at 100 % / 40 % duty cycle [Nm] 262 / 340 470 / 575 *

Chip-to-chip time t2 to VDI 2852 [s] referred to speed [rpm] (Siemens 840D sl) (double disc) 4.4 to n5.000 4.4 to n4.500

Toolholder for short hollow taper tools to DIN 69 893 HSK-A63

Spindle bearing diameter on front bearing [mm] 70 80 65

Speed nmax [rpm] 18,000 16,000 30,000

Drive power max. at 100 % / 40 % duty cycle [kW] 29 / 39 25 / 32 40 / 53

Spindle torque max. at 100 % / 40 % duty cycle [Nm] 34.6 / 46.9 159 / 206 47 / 63

Chip-to-chip time t2 to VDI 2852 [s] referred to speed [rpm] (Siemens 840D sl) (double disc) 3.3 to nmax 3.3 to n7.000 3.3 to n16.000

Toolholder for short hollow taper tools to DIN 69 893 HSK-A63

Spindle bearing diameter on front bearing [mm] 70 70

Speed nmax [rpm] 12, 000 12, 000

Drive power max. at 100 % / 40 % duty cycle [kW] 29 / 39 40 / 52

Spindle torque max. at 100 % / 40 % duty cycle [Nm] 34.6 / 46.6 63.7 / 82.8

Chip-to-chip time t2 to VDI 2852 [s] referred to speed [rpm] (Siemens 840D sl) (double disc) 3.3 to nmax 3.3 to nmax

Subject to technical change.

SlidesWorking travels in X / Y / Z axis [mm] 1,000 / 1,100 / 1,170Speeds (max.) in X / Y / Z axis [m/min] 60 / 50 / 75Acceleration (max.) in X / Y / Z axis [m/s2] 7Feed force (max.) in X / Y / Z axis [kN] 12 Accuracy (ISO230-2 Third edition 2006-03-15)

> Two-sided position uncertainty A on X / Y / Z axis [mm] 0.006

Two-sided repeat precision of positioning R on X / Y / Z axis [mm] 0.004

Main spindle

Drive: standard Toolholder for short hollow taper tools to DIN 69 893 HSK-T100 Spindle bearing diameter of front bearing [mm] 100Speed nmax [rpm] 10, 000Drive power max. at 100 % / 40 % duty cycle [kW] 50 / 66Spindle torque max. at 100 % / 40 % duty cycle [Nm] 258 / 340Chip-to-chip time t2 to VDI 2852 [s] referred to speed [rpm] (Siemens 840D sl) (double disc) 4.4 to n7,000

Spindle clamping [Nm] 1,200B-AxisRotary table diameter Ø [mm] 950Speed nmax [rpm] (automatic unbalance monitoring) 500

Torque max. at 100 % / 5 % duty cycle [Nm] 3,000 / 4,050

>

Tool magazine Double disc magazineDisc magazine HSK-T100Number of pockets; Standard 2x 30Tool length max. [mm] front/back 650 / 500Tool diameter max. [mm]> no diameter restriction for neighboring positions 130> diameter restriction for neighboring positions 250Tool weight max. [kg] 22Tool moment in gripper max. [Nm] 40ComponentPallet loads [kg] 1,050Table loads [kg] 1,500 **Maximum interference diameter Ø [mm] 1,280Connection ratingsPower requirement at 400 V 3-phase / 50 Hz [kVA] at least 42Compressed air [bar] 5Weight (approx.)Total weight [kg] (without / with pallet changer) 33, 000 / 36, 000OptionsAutomatic pallet changer [mm] 800 x 800Tool magazine expansion TM 152 (HSK-T100)

(*) higher torques possible upon request

(**) table capacity up to 2,000 kg upon request

Optional weight and temperature compensation upon request.

G750T ALL DATAAT A GLANCE

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www.grobgroup.com

GROB-WERKE GmbH & Co. KGMindelheim, GERMANYPhone: +49 8261 996-0Fax: +49 8261 996-268E-mail: info@de.grobgroup.com

B. GROB DO BRASIL S.A.São Paulo, BRAZILPhone: +55 11 436791-00Fax: +55 11 436791-01E-mail: info@br.grobgroup.com

GROB SYSTEMS, INC. Bluffton, Ohio, USAPhone: +1 419 358-9015Fax: +1 419 369-3331E-mail: info@us.grobgroup.com

GROB MACHINE TOOLS (DALIAN) Co. Ltd. Dalian, ChINAPhone: +86 411 39266488Fax: +86 411 39266589E-mail: dalian@cn.grobgroup.com