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Renishaw plc
New Mills, Wotton-under-Edge,
Gloucestershire, GL12 8JR
United Kingdom
T +44 (0)1453 524524
F +44 (0)1453 524901
E uk@renishaw.com
www.renishaw.com
SP80 ultra-high accuracy scanning
probe
Class leading performance with
flexible use of styli
The SP80 is a quill-mounted scanning probe that uses
digital scale and readhead technology, plus Renishaw’s
innovative isolated optical metrology principles, to provide
exceptional scanning performance, even with long styli.
The digital scale and readheads with 0.02 µm resolution
enable exceptional scanning performance with up to
1000 mm long and 500 g mass styli, including star
configurations.
The SP80 has a kinematic mount that offers a repeatable
connection to the mating plate mounted on the quill (KM80),
allowing the probe to be removed easily. Unbalanced star
configurations do not require counterbalancing and the
kinematic stylus changing allows for repeatable relocation
of the stylus, optimising stylus arrangements for each
feature, and overcoming the need for requalification.
Using an isolated optical metrology system that measures
the deflection of the whole mechanism, the SP80 provides
accurate position sensing without stacked axis errors.
Additionally, kinematic stylus holders provide crash
protection in the XY plane, and a bump stop prevents
damage to the probe in the Z-axis.
Key benefits
Long stylus carrying capability - with high accuracy
The combination of long stylus reach with maintained high accuracy
performance makes SP80 the first choice scanning probe for many
applications.
Rapid stylus interchange
Interchange of the stylus holders (SH80) can be automated for
optimised productivity by using a rack system and stylus change ports
(SCP80) mounted to Renishaw’s modular rack system.
Low cost of ownership
SP80’s system modularity enables expansion as required. Robust
design promotes long working life but should anything go wrong,
Renishaw’s rapid service / exchange program minimises downtime.
Horizontal mounting option - SP80H
A horizontal mounting option is also available.
Innovations
Isolated optical metrology
SP80 directly measures the deflection of
the whole mechanism, which provides
outstandingly accurate position sensing.
The isolated optical metrology system
can detect sources of variable error
such as thermal and dynamic effects.
By contrast, probes with displacement
sensors mounted to stacked axes suffer
from increased dynamic latency.
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Specifications
Probe attributes
Orientation
Size
Quill mounting
Measurement range
Overtravel range
Resolution of digital
scales
Measurement capability
test to ISO10360-2 **
Scanning capability test
to ISO10360-4 **
Return to zero
Spring rate
Stylus carrying
capability
Ultra-high accuracy scanning probe with 3-axis measurement (±PX, ±PY, ±PZ) *
Vertical with SP80, horizontal with SP80H
Body 80 mm (3.15 in) square
Length (including SH80 stylus
holder)
KM80 80 mm (3.15 in) square quill to kinematic SP80
KM6080 60 mm (2.36 in) square quill to 80 mm (3.15 in)
SM80 Shank mount and other custom made adaptor
3-axis measurement: ±25 mm (±0.12 in) (PX, PY, PZ) *
PX* and PY* protected by breakout of the kinematic joint to the SH80 PZ* has a
mechanical ‘bump-stop’
0.02 µm
Better than 1.0 µm with a 50 mm stylus
Better than 2.0 µm with a 1000 mm stylus
Better than 0.5 µm with a 50 mm stylus
Better than 6.0 µm with a 1000 mm stylus
Approximately 1% of working deflection
Approximately 1.8 N/mm (X, Y, Z)
Renishaw M5 stylus range
Maximum 500 g mass (unbalanced)
150 mm (5.91 in)
quill mount (standard)
square kinematic SP80 probe mount (option)
plates available - contact your Renishaw supplier
for details
Maximum 1000 mm projection ***
Mass
Pull off force of SH80
Probe power supply
System power supply
(including IU80)
SP80 probe outputs (PX,
PY, PZ) *
Interfacing
options
Change rack system
* Where P specifies that it is the probe’s axis rather than the machine’s
** Tested on a CMM with specification of 0.48 µm +L/1000
*** SH80 EXT stylus holder must be used with 1000 mm stylus extensions
SP80 probe body only 860 g
SH80 stylus holder 185 g
KM80 quill mount 110 g
<20 N when using SCP80 - otherwise approximately 80 N
+9 V to +18 V at 300 mA maximum dc
+5 V ±0.25 V at 1 A maximum dc
1.5 V ±0.25 V p-p. analogue quadrature signal (nominal 2.5 V zero crossing
reference)
• Using a UCC2-2 SP80 daughtercard for direct integration
• Using a Renishaw PCI counter card (CC6) and the Renishaw interpolator unit
(IU80)
• Other interface cards designed by the OEM and using in conjunction with an IU80
• Using a counter card and interpolator units designed by the OEM
SCP80 units mounted to MRS or MRS2
SCP80V units mounted to MRS or MRS2 for rear facing styli
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SP80 performance
The plot below illustrates SP80’s remarkable high accuracy scanning performance with increasing stylus lengths.
6.0
5.5
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
ISO 10360-4 filtered data (µm)
1.0
0.5
0.00
0 50 100 150 200 250 300 350 400 450 500 550 600 650 700 750 800 850 900 950 1000 1050
Stylus length (mm)
CMM specification: U = 0.48 µm ±L/1000
60 UPR harmonic filtering
Scan deflection = 0.5 mm
Scan speed = 5 mm/s (except on 1000 mm stylus
where scan speed = 2 mm/s)
Isolated optical metrology
Isolated optical metrology can be explained as a feature of the transducer system. The readheads for each axis are
fixed to the body of the probe, and measure the deflection in each direction. Any inter-axis movement caused by the
arc motion of each pair of parallel-acting springs is directly measured by the sensor system. The squareness and
straightness of the SP80’s axes are, therefore, not derived from the mechanism, but optically from the scale cube
itself. Direct measurement of the stylus motion relative to the static probe body removes the need for moving wire
connections which may impede motion
Electrical connection
Readheads
attached to
probe body
for readheads
‘Moving cube’
with scales
Light is reflected
from the moving
cube onto the
readhead
Shaded areas
indicate the moving
parts
Stylus mount
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Renishaw plc
New Mills, Wotton-under-Edge,
Gloucestershire, GL12 8JR
United Kingdom
T +44 (0)1453 524524
F +44 (0)1453 524901
E uk@renishaw.com
www.renishaw.com
In summary
SP80 and SP80H are the scanning probes of choice for automotive and power train sectors where high accuracy
form measurement with deep reach into components is required. The system’s flexibility and affordability is
acknowledged as being significant in terms of user benefits such as:
• Ultra-high accuracy measurement, provided by digital scale and readheads
• Long styli carrying capability for access to deep features
• Isolated optical metrology for direct accurate measurement of stylus deflection
• Kinematic stylus holder changing for system flexibility
• Low inertia mechanism for excellent dynamic response
• Bump stop crash protection in the Z-axis, together with a detachable stylus holder for XY crash protection
• No motors, resulting in excellent thermal stability and reliability
Additional information
Selected part numbers
NOTE: Please see www.renishaw.com/SP80 for further options.
A-2238-0700 SP80 probe kit
(includes probe body, SH80, KM80, PL157 probe cable and 60 mm × D8 stylus)
A-2238-0703 KM80 - standard quill mounting plate
A-2238-0705 SH80 - stylus holder
A-2238-0489 SH80 EXT - stylus holder
A-2238-0706 SCP80 - stylus change port
A-2238-0720 IU80 - interpolator unit
A-4068-0400 CC6 - PCI counter card
A-1333-0021 UCC1 / SP80 daughtercard
A-1016-7133 PL158 - IU80 to CC6 cable
A-1016-7129 PL156 - IU80 unterminated cable
© 2003 - 2014 Renishaw plc Renishaw reserves the right to change specifications without notice Printed in England 0914
US hybrid part no. H-1000-2125-01-B
Printed in England 0914 Part no. H-1000-2124-01-B
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