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PRALL TESTER
DUAL-CHAMBER ABRASION TESTER
A
high-quality,
repeatable,
and
reproducible
machine
complying
with
EN
12697-16
A,
featuring
dual
chambers
for
reduced
variability.
Studded
tyres
help
prevent
skidding
and
accidents
on
snow
or
ice
but
cause
costly
pavement
wear,
rutting,
and
dust
pollution.
The
Prall
Test
(Method
A)
remains
the
most
effective
method
to
assess
abrasion
caused by studded tyres.
To
enhance
accuracy
and
repeatability,
Cooper
developed
the
CRT-PRALL
with
a
dual-chamber
design
that
minimizes
variability
and
ensures
consistent
results.
The
tester
performs
the
Prall
Test
according
to
EN
12697-
16
Method
A,
in
which
a
cylindrical
asphalt
specimen
(100mm
diameter
x
30mm
height)
is
conditioned
to
5°C
and
subjected
to
abrasion
by
40
steel
spheres
for
15
minutes.
The
resulting
material
loss,
measured
in
millilitres,
represents
the
abrasion
value.
With
its
refined
construction
and
improved
reproducibility,
the
CRT-PRALL
provides
a
reliable
and
efficient
solution
for
evaluating asphalt resistance to studded tyre wear.
MAIN FEATURES
•
Robust and high quality stainless steel test chambers x 2
•
Inlet and outlet ports are connected to flexible hoses via quick release adaptors
•
Comes with a replaceable insert with glued rubber (neoprene) plate to fix to the upper surface of the lid
•
Efficient locking guard system to satisfy CE legislation
•
Fitted drain
•
Supplied with spheres made of stainless steel according to ISO 3290
•
Fitted with ‘flow controller’ on the chamber lid inlet port to regulate the flow of water to each chamber
•
Flow of water to each chamber is variable over the range of 0 to 4 litres per minute which provides greater control and flexibility
•
Precision engineered equipment with controlled flow of water to each chamber, to an accuracy of 0.2 litres per minute
•
User friendly, state of the art PLC based control system, mounted within its own enclosure to allow positioning away from the equipment
•
Made in the United Kingdom, Fully CE marked
KEY USES
•
Determination of wearing of asphalt pavements
•
Investigation of abrasion due to studded tyres
SOFTWARE
•
User friendly and reliable control system controlled via PLC interface
•
The
interface
allows
the
user
to
set
the
temperature
of
the
water
reservoir,
speed
of
the
motor
and
the
flow
of
the
coolant
water
into
each
test chamber prior to starting the test
•
The
interface
displays
the
temperature
of
the
water
reservoir,
speed
of
the
motor
and
the
flow
of
the
coolant
water
into
each
test
chamber
•
Data is recorded throughout the test and can be exported to PC via a data stick for further analysis
•
The
safety
relay
ensures
that
the
door
on
any
test
chamber
does
not
open
until
the
motor
has
come
to
a
standstill
and
water
supply
has
been isolated
STANDARDS
EN 12697-16 Method A
Length of connection rod (mm)
200mm ± 5mm
Motor speed (variable) (RPM)
150 to 1500 RPM
Steel Spheres diameter (mm)
11.50 to 12.01mm
Steel Spheres hardness value (HRC)
63 to 66 HRC
Control System
PLC controlled
MACHINE SPECIFICATION
Calibration,
Annual
Service
and
Maintenance
Contracts
are
available
for
this
device.
UKAS
accreditation
to
satisfy
typed
testing as described in EN 13108.
Please enquire for further details.
Note
This device should be checked and calibrated annually.
CALIBRATION & MAINTENANCE
Electrical requirements
6 kW Three Phase, 50Hz
ELECTRICAL SPECIFICATION
Water source/pressure
Mains pressure water required
WATER
ACCESSORIES
Accessories are not included in the price of main device (unless stated otherwise) and may be purchased separately if required.
Sample Holding Rack (up to 4 Specimens)
CRT-PRALL-SHR
Samples Candles (2 off)
CRT-PRALL-SC
Neoprene Gasket (2 off)
CRT-PRALL-NG (Replacement Pt.)
Steel Spheres – 80 off for Prall Tester
CRT-PRALL-SS (Replacement Pt.)
Seals (2 off)
CRT-PRALL-S (Replacement Pt.)
SPECIFICATIONS
The content of this website, including but not limited to text, graphics, images, logos, and software, is the property of Cooper Research
Technology or its content suppliers and is protected by international copyright laws. Unauthorized use, reproduction, distribution, or
modification of any material on this site is strictly prohibited without prior written consent from Cooper Research Technology.
All trademarks, product names, and company names or logos cited herein are the property of their respective owners.
© Cooper Research Technology. All rights reserved.
QUALITY ASSURANCE
OUR CUSTOMERS
PRALL TESTER
DUAL-CHAMBER ABRASION TESTER
A
high-quality,
repeatable,
and
reproducible
machine
complying
with
EN
12697-16
A,
featuring
dual
chambers
for
reduced
variability.
Studded
tyres
help
prevent
skidding
and
accidents
on
snow
or
ice
but
cause
costly
pavement
wear,
rutting,
and
dust
pollution.
The
Prall
Test
(Method
A)
remains
the
most
effective
method to assess abrasion caused by studded tyres.
To
enhance
accuracy
and
repeatability,
Cooper
developed
the
CRT-
PRALL
with
a
dual-chamber
design
that
minimizes
variability
and
ensures
consistent
results.
The
tester
performs
the
Prall
Test
according
to
EN
12697-16
Method
A,
in
which
a
cylindrical
asphalt
specimen
(100mm
diameter
x
30mm
height)
is
conditioned
to
5°C
and
subjected
to
abrasion
by
40
steel
spheres
for
15
minutes.
The
resulting
material
loss,
measured
in
millilitres,
represents
the
abrasion
value.
With
its
refined
construction
and
improved
reproducibility,
the
CRT-PRALL
provides
a
reliable
and
efficient
solution
for
evaluating
asphalt resistance to studded tyre wear.
MAIN FEATURES
•
Robust and high quality stainless steel test chambers x 2
•
Inlet
and
outlet
ports
are
connected
to
flexible
hoses
via
quick
release adaptors
•
Comes
with
a
replaceable
insert
with
glued
rubber
(neoprene)
plate to fix to the upper surface of the lid
•
Efficient locking guard system to satisfy CE legislation
•
Fitted drain
•
Supplied
with
spheres
made
of
stainless
steel
according
to
ISO
3290
•
Fitted
with
‘flow
controller’
on
the
chamber
lid
inlet
port
to
regulate the flow of water to each chamber
•
Flow
of
water
to
each
chamber
is
variable
over
the
range
of
0
to
4 litres per minute which provides greater control and flexibility
•
Precision
engineered
equipment
with
controlled
flow
of
water
to
each chamber, to an accuracy of 0.2 litres per minute
•
User
friendly,
state
of
the
art
PLC
based
control
system,
mounted
within
its
own
enclosure
to
allow
positioning
away
from the equipment
•
Made in the United Kingdom, Fully CE marked
KEY USES
•
Determination of wearing of asphalt pavements
•
Investigation of abrasion due to studded tyres
SOFTWARE
•
User
friendly
and
reliable
control
system
controlled
via
PLC
interface
•
The
interface
allows
the
user
to
set
the
temperature
of
the
water
reservoir,
speed
of
the
motor
and
the
flow
of
the
coolant
water
into each test chamber prior to starting the test
•
The
interface
displays
the
temperature
of
the
water
reservoir,
speed
of
the
motor
and
the
flow
of
the
coolant
water
into
each
test chamber
•
Data
is
recorded
throughout
the
test
and
can
be
exported
to
PC
via a data stick for further analysis
•
The
safety
relay
ensures
that
the
door
on
any
test
chamber
does
not
open
until
the
motor
has
come
to
a
standstill
and
water
supply has been isolated
The content of this website, including but not limited to text, graphics, images,
logos, and software, is the property of Cooper Research Technology or its content
suppliers and is protected by international copyright laws. Unauthorized use,
reproduction, distribution, or modification of any material on this site is strictly
prohibited without prior written consent from Cooper Research Technology.
All trademarks, product names, and company names or logos cited herein are the
property of their respective owners.
© Cooper Research Technology. All rights reserved.
QUALITY ASSURANCE
OUR CUSTOMERS
BITUMEN LABORATORY TESTING
BITUMEN AGING
UNIVERSAL MATERIAL TESTING
FRENCH MIX DESIGN (EME)
UNBOUND MATERIALS TESTING
WHEEL TRACKING
LOW TEMPERATURE TESTING
BALANCE MIX DESIGN
ASPHALT COMPACTION
BENDING BEAM TESTING
SPECIMEN CUTTING AND PREPARATION
ROAD QUALITY TESTING/SLIP RESISTANCE
