158 MMS April 2017 mmsonline.com
MODERN EQUIPMENT REVIEW Spotlight: Grinding
separate rear and side access ease setup and
workpiece loading. The CS700E is also equipped
with a recirculating oil mist removal system.
Holroyd Precision Limited, call 44 1706 526 590
or visit holroyd.com.
EXTERNAL TO INTERNAL GEAR
GRINDING IN 30 MINUTES OR LESS
Based on Liebherr's Opal system, the IG Opal
4.0 internal geartooth profile-grinding technology
fits a belt-drive spindle to the company's standard
GH 4.0, GH 5.0 and GH 6.0 grinding heads. The
internal gear-grinding arm will be available in two
sizes at first, with more to follow. The company
also takes requests for custom internal gear-
grinding arms.
This technology is said to enable switching
from external to internal grinding in half an hour
at most. The user detaches the external gear
grinding disc or worm, hangs the internal gear
grinding arm on the hardened stop bars to ensure
repeat accuracy, and fixes it in place with screws.
After tensioning the
belt-drive disc and
the belt, internal gears
can be ground using
a grinding disc 100 or
125 mm in diameter.
IG Opal 4.0 func-
tions at a maximum
s p i n d l e s p e e d o f
12,000 rpm. A larger
version, the IG Opal
4.1, features a maxi-
mu m g r inding disc
diameter of 125 mm. Both arms have been suc-
cessfully tested using cubic boron nitride (CBN)
and corundum discs. Dressable wheels can be
tended by the same dresser used for external
gear grinding.
All internal gear grinding arms are modeled in
3D and can be used in very confined spaces. The
company says that collision inspections are simple
and reliable to ease machining of small-diameter
Contact our US-Sales Team to learn more:
DVS Technology America, Inc.
734-656-2080
sales.america@dvs-technology.com
FASTER
Target tolerances
achieved faster
thanks to intuitive
operating interface.
UNBELIEVABLY CONVINCING.
UGrind
EFFICIENT
Complete machining
with grinding, turning
and measuring tools
with one turret.
FLEXIBLE
Available for
shafts with
centre widths
up to 1800mm.
RIGID
Machine bed
made of natural
granite stone for
high dynamic
rigidity & thermal
stability.