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Computer
Universal Testing Machine
Application
A
wide variety of tests can be conducted on this machine viz. Tensile,
compressive, transverse, Peel test for adhesive tapes. The materials
like rubber, plastics, ferrous metals, non ferrous metals, etc. can be
tested as per different standards. The test specimens can have a
number of forms like round, flat, threads, wires, dumbells, fabric,
belts, straps, ropes, etc. or sometimes components directly also can
be tested. In order to cater to this variety of forms, shapes and
materials, a range of grips can be offered.
Description
The
computer controlled universal testing machines are rugged, versatile,
user friendly, accurate and can test a variety of materials. A wide
choice of grips are available to suit the application. The windows
based software is comprehensive and covers most of the applications.
The automatic calculation of parameters from the observed test
values, real time graphs, storage and retrieval of data are immensely
useful. The state of art electronics, high quality material used, and
the user friendly software makes the machine reliable and user
friendly.
The
machine comprises of a rigid assembly of lower table and top plate
connected by guide rods. The two ball screws (One on left and the
other on right) also are mixed in this assembly. The crosshead, in
the center, houses the nuts of the ball screws. The entire assembly
is fixed on the base, which accommodates driving arrangement base. A
set of bellows protects the ball screws from ingress of dust.
The
interface and computer are placed on a computer table by the side of
the machine.
Standard
Accessories
Basic
machine along with one load cell and a pair of compression plates.
Windows
based on users friendly software.
Salient
Features
- Method
of loading by re-circulating ball screws.
- AC
servo motor for precise crosshead control with infinitely variable
drive.
- Load
measurement by load cell
- Over
travel safety by fixed and settable limit switches at both ends.
- Overload
protection for load cell by electronic control
- Single
from windows based user friendly software
- Test
data and reports are stored in access database
- User
programmable strain rates in many steps
- User
can select results from available result list for report
- User
defined reports
- User
can select test from templates and can start similar test
- Variable
sample break detection.
- Tare
load and reset elongation facilities available
- Load
and Elongation is continuously displayed on screen
- Statistical
output for a batch in report
- Simultaneous
display of two graphs is possible in real time testing
- On
line display of load and displacement (Stress, Extension, strain)
etc. while test is conducted.
- Real
time graph of load and Elongation, load and time, stress and strain
is displayed and is auto scaled
- User
selectable units for load and displacement (N, kg, kN, lbf, mm,
inch, etc)
- Report
can be printed on any printer with two graphs
- Large
storage space for storing test data and results
- Provision
of calculation of Load and Elongation at yield, peak load and load
at break, Yield stress, Ultimate stress, etc.
- Specific
software for tensile, compression, shear test and other tests.
- If
Electronic Extensometer is used then proof stress values from 0.1%
to 1% can be determined.
- software
will give alert to user to remove extensometer when load crosses the
proof load value
- In
order to cover wide load range, more load cells can be supplied
(optional), In that case has to select the load cell for test
- Standard
load resolution is with 10,000 counts. Finer resolution with 20,000
or 50,000 counts can be offered (optional)
- Other
slower crosshead speed on specific request (optional)
Technical
Specifications
|
Specification
|
Model
|
|
M1
|
M2
|
M5
|
M30
|
M50
|
M75
|
M100
|
|
Max. Capacity
(kN)
|
1
|
2
|
5
|
30
|
50
|
75
|
100
|
|
Max. Crossehad
traverse excluding
grips (mm)
|
1000
|
1000
|
1000
|
1000
|
1000
|
1000
|
1000
|
|
Max. working
width (mm)
|
400
|
400
|
400
|
400
|
400
|
600
|
600
|
|
Fixed and working
upper & lower limit
switches
|
Yes
|
Yes
|
Yes
|
Yes
|
Yes
|
Yes
|
Yes
|
|
Overall dimension
HXWXD dm(Approx)
|
17/80x630
x505
|
1780x630x
505
|
1780x630x
505
|
1700x630x
505
|
1920x675x
750
|
2640x1180x
1050
|
2640x1180x
1050
|
|
Weight (kg)
(Approx)
|
150
|
150
|
150
|
200
|
250
|
450
|
500
|
|
Power Supply
|
3 Phase, 415 V, 50Hz, AC
|
|
Overload protection
for bad
|
Yes
|
Yes
|
Yes
|
Yes
|
Yes
|
Yes
|
Yes
|
|
(Software operated and electronically operated in the event of
load cell overload)
|
|
Drive System
|
|
Method of loading
|
By recirculating ball screws
|
|
Crosshead
drive motor
|
AC servo with feed back
|
|
Crossehad speed
|
0.5 to 500 mm per min.
|
|
Crosshead control
|
Computer controlled
|
|
Accuracy of
speed in percent
|
±1%
|
±1% | ±1% | ±1% | ±1% | ±1% | ±1% | Measurement
|
|
Load
|
By Precision Loads cell's
|
|
Load Resolution
|
10,000 counts standard (20,000 or 50,000 counts
optional)
|
|
Load Accuracy
|
+-1% as per IS: 1828 – 1991 & BS:1610-1964
|
|
Resolution of cross head displacement in mm
|
0.01mm
|
|
