MC Double Gantry for Heavy Duty Cutting / DGBW series

Double Gantry Boring Machines

Product description

CNC Double Gantry for Heavy Duty Cutting of the series DGBW26 with moveable columns and cross beams. The product offers advantages such as high efficiency, high accuracy and high reliability. Both the double column and the milling head are moved via a hydrostatic constant current supply with “pump per pocket” to ensure high reliability and ease of maintenance.

Each feed drive uses a preloaded double pinion or ball screw nut drive.
The gantry movement is performed by double motors and a double measuring synchronous drive. Synchronization and positioning accuracy can be guaranteed. The levelling of the traverse is automatic, free of the effect of the drilling and milling head position.
The crosshead feed is equipped with double motors and a double measuring synchronous drive. Synchronization and positioning accuracy can be guaranteed.
A hydraulic compensation device is provided for the vertical stroke of the ram.
The tool head can automatically pull and clamp the tool and the attachments. The attachments can realize an indexing of 4 x 90°.
The milling spindle has functions for automatic forward tilt and reverse tilt adjustment. This avoids the surface roughness of the workpiece.
The machine uses the Siemens 840Dsl system, the 1 PH AC spindle motor, the 1 FT AC servo motor and the speed controller. All feed axes are controlled via Heidenhain’s optical scale to provide complete control.

Facts & figures

DGBW 2645 - DGBW 2660 DGBW 2670 - DGBW 26100

Technical Data	DGBW2645	DGBW2650	DGBW2655	DGBW2660
Dimension
Table width [mm]	4500	5000	5500	6000
Table load [t/m²]	20	20	20	30
Dist. bet. columns [mm]	5800	6300	6800	7500
Dist. spindle nose to table [mm]	4000 / 4500 / 4998	4000 / 4500 / 4998	4000 / 4500 / 4998	4000 / 4500 / 4998
Travel
Gantry X-axis [mm]	As per requirement	As per requirement	As per requirement	As per requirement
Head Z-axis [mm]	6700 / 7200 / 7700	6700 / 7200 / 7700	6700 / 7200 / 7700	8500
RAM Y-axis [mm]	1500 / 1998	1500 / 1998	1500 / 1998	3000
Crossrall W-axis [mm]	3500 / 3500 / 3500	3500 / 3500 / 3500	3500 / 3500 / 3500	3000 / 4000 / 5000 / 6000
Spindle
Dia. spindle [mm]	200	200	200	200
Spindle taper [mm]	ISO60	ISO60	ISO60	IOS60
Spindle torque [Nm]	7998	7998	7998	8000
RAM section [mm]	600 x 598	600 x 598	600 x 598	630 x 630
C axis	4 x 90° / 2.5° – 2.5°	4 x 90° / 2.5° – 2.5°	4 x 90° / 2.5° – 2.5°	4 x 90° / 2.5° – 2.5°
Speed
Gantry travel-X axis [rpm]	0 ~ 10000 (10000)	0 ~ 10000 (10000)	0 ~ 10000 (10000)	0 ~ 10000 (10000)
Boring and milling head (Y-axis) [rpm]	0 ~ 10000 (10000)	0 ~ 10000 (10000)	0 ~ 10000 (10000)	0 ~ 10000 (10000)
Ram Z-axis [rpm]	0 – 5000 (5000)	0 – 5000 (5000)	0 – 5000 (5000)	0 -5000 (5000)
Crossrail W-axis [rpm]	0 – 2000 (2000)	0 – 1600 (1600)	0 – 1600 (1600)	0 – 1600 (1600)
Spin. speed range [rpm]	5 – 1200 (steppless)	5 – 1200 (steppless)	5 – 1200 (steppless)	5 – 1200 (steppless)
Accessories
Main motor [kW]	105	105	105	105
Controller	Siemens / Fanuc / Fagor	Siemens / Fanuc / Fagor	Siemens / Fanuc / Fagor	Siemens / Fanuc / Fagor
Measurement system	Heidenhain	Heidenhain	Heidenhain	Heidenhain
Hydraulic comp.	BSR	BSR	BSR	BSR

Our machines are delivered with Siemens control as standard. On request, we can also design the machines with Heidenhain and Fanuc controls. The machines are assembled and delivered according to the specifications.

Technical Data	DGBW2670	DGBW2680	DGBW2690	DGBW26100
Dimension
Table width [mm]	7000	8000	9000	10000
Table Load [t/m²]	30	30	30	30
Dist. bet. columns [mm]	8500	10000	11000	12000
Dist. spindle nose to table [mm]	5000 / 6000 / 7000 / 8000	5000 / 6000 / 7000 / 8000	5000 / 6000 / 7000 / 8000	5000 / 6000 / 7000 / 8000
Travel
Gantry X-axis [mm]	As per requirement	As per requirement	As per requirement	As per requirement
Head Y-axis [mm]	9500	10500	11500	12500
RAM Y-axis [mm]	3000	3000	3000	3000
Crossrail W-axis [mm]	3000 / 4000 / 5000 / 6000	3000 / 4000 / 5000 / 6000	3000 / 4000 / 5000 / 6000	3000 / 4000 / 5000 / 6000
Spindle
Dia. spindle [mm]	200	200	200	200
Spindle taper [mm]	ISO60	ISO60	ISO60	ISO60
Spindle torque [Nm]	8000	8000	8000	8000
Ram section [mm]	630 x 630	630 x 630	630 x 630	630 x 630
C-axis	4 x 90° / 2.5° —2.5°	4 x 90° / 2.5° —2.5°	4 x 90° / 2.5° —2.5°	4 x 90° / 2.5° —2.5°
Speed
Gantry travel (X-axis) [rpm]	0 ~ 10000 (10000)	0 ~ 10000 (10000)	0 ~ 10000 (10000)	0~10000 (10000)
Boring and milling head (Y-axis) [rpm]	0 ~ 10000 (10000)	0 ~ 10000 (10000)	0 ~ 10000 (10000)	0 ~ 10000 (10000)
Ram (Z-axis) [rpm]	0 – 5000 (5000)	0 – 5000 (5000)	0 – 5000 (5000)	0 – 5000 (5000)
Crossrail W-axis [rpm]	0 – 1600 (1600)	0 – 1600 (1600)	0 – 1600 (1600)	0 – 1600 (1600)
Spin. speed range [rpm]	5 – 1200 (steppless)	5 – 1200 (steppless)	5 – 1200 (steppless)	5 – 1200 (steppless)
Accessories
Main motor [kW]	105	105	105	105
Controller	Siemens / Fanuc / Fagor	Siemens / Fanuc / Fagor	Siemens / Fanuc / Fagor	Siemens / Fanuc / Fagor
Measurement system	Heidenhain	Heidenhain	Heidenhain	Heidenhain
Hydraulic comp.	BSR	BSR	BSR	BSR

Your contact persons

For all questions about MC Double Gantry for Heavy Duty Cutting / DGBW series

Larsen Priebs

Managing Director

Tel: + 49 (0) 331 58 14 97 50
service@gmw-machines.de

Holger Wirths

Managing Director

Tel: +49 (0) 2333 79 05 16
service@gmw-machines.de