A highly repeatable motorised
solution for tool setting and
workpiece inspection with
improved robustness and
adaptability
The HPGA (High Precision Generic Arm) is the latest
addition to Renishaw’s successful family of high
precision tool setting arms, for use on grinding machines
and CNC lathes. The HPGA delivers improved multi-axis
directional repeatability to meet the ever tighter
measurement and performance demands in the market.
The arm incorporates Renishaw’s new SwarfStop™ seal
design that significantly improves protection against
sharp metallic particles in both grinding and normal
machining environments.
The HPGA supports both the LP2 compact probe and the
high accuracy strain gauge probe, MP250.
It uses hard-wired connections to the machine control via
Renishaw’s TSI 3 and HSI interfaces.
Key benefits
3-axis repeatability
The HPGA provides improved repeatability in all three major
machine axes, achieved using hub and base components
machined from spheroidal graphite cast iron, combined with
Renishaw’s high performance 3D probes.
Improved performance in a grinding environment
Extra protection against harsh machining environments
using Renishaw’s latest SwarfStop™ technology, gives
improved reliability.
Strain gauge compatibility
The HPGA can be upgraded to strain gauge technology for
improved repeatability and multi-axis directional performance.
This is achieved by using Renishaw’s patented
high accuracy probe, MP250.
Innovations
Environmental protection
An additional metal sealing device, SwarfStop™, is positioned
between the hub and base, acting as a physical barrier to
prevent small metallic particles from entering the system.
Ease of installation
The HPGA is supplied with a plug and socket cable connector to
the hub and base unit. This allows the cable to be detached
easily thus simplifying installation and in the field replacement.
In addition, existing customers of the HPMA / HPPA can upgrade
to the HPGA as these arms share the same mounting footprint.
Interchangeable arms
A wide range of arm configurations can be accepted by the
HPGA hub and base unit. The mounting configurations available
are: Universal Mount using a M16 thread and LPE extension bar,
and Flange Mount for custom cranked arm configurations.
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