Common-Rail

DL-GR7500

Grinding machine for the needles of nozzles

Price: on request
DL-GR7500. Grinding machine for the needles of nozzles

GR-7500 — Injector nozzle grinding machine

The GR-7500-Machine for sharpening needles of atomizers and other bodies of rotation.

The machine is controlled by PWM controllers.
The control of the speed of rotation of the spindle and the processed body is regulated by means of rotary knobs located on the control panel.
Adjusting the brightness of the lower illumination of the processed body of rotation is performed using the rotary knob located in the upper part of the control panel.
The control panel has a general power switch for the machine and three power switches on
each electric motor of the corresponding drive and lower lighting bulbs.
On the rear side of the machine body there is a connector for supplying a 220-volt power cable, two 220-volt sockets and a 12-volt connector for connecting a monitor.
On the front side of the machine body there is a 12 volt connector for connecting the electric motor power cable to drive rotation bodies.

The DL-GR7500 grinding machine can be used with the following kits:
  • DL-UNI20025 — Kit with 14 MP VGA / HDMI microscope with backlight, monitor, and stand;
  • DL-UNI20026 — Kit with 38 MP 1080P Full HD microscope (HDMI / USB);
  • DL-UNI20027 — Kit with 38 MP 1080P Full HD microscope (HDMI / USB);
  • DL-UNI20030 — Kit with 14 MP USB / HDMI microscope.
Each kit includes:
  • Industrial digital microscope;
  • holder;
  • Upper backlight;
  • Monitor.

*These kits are supplied separately (upon request / as a separate order).

Basic set
DL-GR7500. Grinding machine for the needles of nozzles
Part Number Name Qty
GR-7500 Piezo injector needle grinding  machine 1 pc
DL-UNI20200 Grinding wheel , grit 400 1 pc
DL-NG31290 Extension for installing long parts for grinding 2 pc
DL-NG31309 Pen for dressing the grinding wheel 1 pc
DL-NG31264 Pulley dia.15×3 for nozzle needle 1 pc
DL-NG31264-01 Pulley dia.15×4 for nozzle needle 1 pc
DL-NG31264-02 Pulley dia.15×5 for the valve holder of the piezo injector 1 pc
DL-NG31196 Pulley dia.15×7 for lapping 1 pc
– Power cable 220 V 1 pc
– Manual 1 pc
Additional Equipment
For convenient work GR-7500
Image Description Qty
DL-GR1080 DL-GR1080. Angle measuring kit 1 pc
DL-GR1090 DL-GR1090. High Precision Angle Measurement Kit 1 pc
DL-NG31263 DL-NG31263. Gauge for setting the angle of 60 degrees 1 pc
DL-NG31866 DL-NG31866. Stop extension for DL-GR7300, DL-GR7400, DL-GR7500 machines 1 pc
DL-UNI20025 DL-UNI20025. Microscope set VGA, HDMI 14 MP 1 pc
DL-UNI20030 DL-UNI20030. Microscope set USB, HDMI 14 MP 1 pc
DL-UNI20026 DL-UNI20026. Microscope set HDMI USB 1080P FHD 38MP 1 pc
DL-UNI20027 DL-UNI20027. Microscope set HDMI USB 1080P FHD 38MP 1 pc
DL-UNI20032 DL-UNI20032. Microscope set HDMI USB 1080P FHD 37MP 1 pc
DL-NG50196 DL-NG50196. Wheel remover with mandrel with spindle taper 1 pc
Additional Equipment
GR-7500
Image Description Qty
DL-NG31253 DL-NG31253. Mandrel holder for the valve (pin) of the BOSCH piezo injector for grinding it 1 pc
DL-CR50405-5 / DL-CR50405-10 / DL-CR50405-15
DL-CR50405-5,
DL-CR50405-10,
DL-CR50405-15
.
Collet cartridge holder (collet) for the valve of BOSCH piezo injectors, runout
1-5;
6-10;
11-15
microns. To restore geometry by grinding. Suitable for BOSCH piezo injectors series 0445115		 1 pc
DL-CR50209-5 / DL-CR50209-10 / DL-CR50209-15
DL-CR50209-5,
DL-CR50209-10,
DL-CR50209-15
.
Collet cartridge holder (collet) for the valve of BOSCH piezo injectors, runout
1-5;
6-10;
11-15
microns. To restore geometry by grinding. Suitable for BOSCH piezo injectors series 0445115		 1 pc
DL-UNI20200 DL-UNI20200. Grinding wheel, grit of 400 1 pc
DL-UNI20201 DL-UNI20201. Grinding wheel, grit 200 1 pc
DL-UNI20202 DL-UNI20202. Grinding wheel, grit 100 1 pc
DL-UNI20203 DL-UNI20203. Grinding wheel conical, grit 320 1 pc
DL-UNI20204 DL-UNI20204. Grinding wheel conical, grit 230 1 pc
DL-GR1050 DL-GR1050. Wheel holder (mandrel) 1 pc
DL-GR1060 DL-GR1060. Shaft for balancing grinding wheel 1 pc
DL-GR1070 DL-GR1070. Balancing device 1 pc
Technical Data
GR-7500
Parameter DL-GR7300 DL-GR7400 DL-GR7500 DL-GR8400
Max. cross travel ± 12.5 mm ± 12.5 mm ± 12.5 mm ± 12.5 mm
Max. longitudinal travel ± 12.5 mm ± 12.5 mm ± 12.5 mm ± 12.5 mm
Worktable swivel angle 270° 270° 270° 270°
Spindle speed 7,300 rpm 7,400 rpm 7,500 rpm 7,400 rpm
Workpiece rotation speed 1,000 rpm
(2,000 rpm*)		 1,000 rpm (2,000 rpm*) 1,000 rpm
(2,000 rpm*)		 1,000 rpm (2,000 rpm*)
Main motor voltage 36 V 36 V 36 V 36 V
Speed control Microprocessor PWM regulators PWM regulators PWM regulators
Power supply voltage ~220 V ± 15% ~220 V ± 15% ~220 V ± 15% ~220 V ± 15%
Overall dimensions (L×W×H) 360×320×280
mm		 360×320×280
mm		 360×320×280
mm		 470×340×300
mm
Housing dimensions (L×W×H) 340×240×260 mm 340×240×260 mm 340×240×260 mm >370×270×300 mm
Net weight 35 kg 35 kg 35 kg 35 kg