Controls Group http://www.controls-group.com/images/logo_controls.gif Automatic computerized 1000/2000kN testing machines for steel and concrete Automatic computerized 1000/2000kN testing machines for steel and concrete
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Automatic computerized 1000/2000kN testing machines for steel and concrete

EN ISO 6892 | EN ISO 7500-1 | ASTM A370
Main features
  • 1000 kN capacity in tension and 2000 kN in compression
  • Completely automatic test cycle at a press of a button up to the printout of the test certificate
  • Strain gauge load cell incorporated in the piston, providing accurate load measurement
  • Rapid vertical displacement of mobile frame by remote control
  • Hydraulic gripping system controlled by remote control
  • Three sets of grippers for round re-bars up to 40 mm dia. and flats up to 70x35 mm
  • Front loading of specimens for quick and easy operation
  • Display of stress/strain diagram in real time
  • Printout of stress/strain diagram and test results
General description
General description
Introduction
This machine has been specifically designed to suit the requirements of Central and Commercial laboratories of the construction industry and Civil engineering in general. This universal tester, in fact, can be used for tensile tests on steel re-bars up to 40 mm dia., flats up to 35x75 mm,  and compression tests on standard concrete specimens. It can also be used, with the appropriate accessory, for transverse and bending test on steel, flexural tests on concrete beams and general compression tests. Specialò accessories are also available for testing steel strands and electro-welded steel  screen.
All the control functions are managed from a standard keyboard and mouse. The frame differ substantially from the old traditional models because of the originality of the design as for example the remote control displacements and gripping systems. The software include a complete suite of programs: tensile, bending, flexure  and compression tests.
Once the specimen has been placed in the machine (using accessories if required) and the specimen data introduced, the test is run completely automatically at the press of a button up to the printout of the test certificate and the storage of the test data.
 
Machine frame, cylinder assembly, load cell
  • Steel base with rigid frame housing the lower grippers
  • Piston/Cylinder assembly mounted on the top of the rigid frame. Load cell incorporated in the piston.
  • Mobile frame consisting of four high tensile strength columns, upper crosshead directly connected to the piston, intermediate crosshead with compression platen and lower crosshead housing the upper grippers.
  • Hydraulically operated gripping system and vertical adjustment by two independent auxiliary cylinders controlled by the push button panel. This unique feature make the machine extremely easy to operate enabling one man to perform the test in a very short time.
  • Crosshead displacement controlled by the use of a bi-directional encoder.
Control console
  • The lower section houses the hydraulic assembly which include: Hydraulic pump, Proportional valve, Hydraulic valves, Heat exchanger to control the oil temperature and the Oil tank.
Grippers
  • Three sets of standard grippers supplied with the machine, for rounds and flats, plus two sets of grip liners to provide maximum bearing and holding surface for specimens of all sizes.
Safety features
  • Pressure switch, which automatically stops the machine when the oil pressure goes over the maximum permitted level.
  • Max travel limit switch to stop the mobile frame at its upper position.
  • Software feature which stops the machine when the maximum load is reached.
Hardware
The upper section of the control console houses the electronic card for the control of all functions, having the following specifications:
  • A/D converter resolution 1/20000
  • No. 4 outputs for electrovalves
  • Analogical output for load and strain control:12 bit
  • Load cell input
Software
The machine can be used either in the manual or in the automatic mode to perform:
  • Tensile test on steel reinforcing bars conforming to EN 10002 and ASTM A370
  • Tensile tests in general, flexural (transverse) and bending test on steel conforming to ASTM E290,  UNI 564.
  • Flexural tests on concrete beams conforming to EN 12390-5
  • Compression tests on concrete specimens conforming to EN 12390-3
Standard outfit
The machine is supplied complete with:
  • No. 3 sets of grips for round specimens up to 40 mm dia. and flat specimens up to 70 mm wide and 35 mm thick and two sets of grip liners.
  • No. 1 set of foundation bolts, 1 service spanner, instruction manual, PC and colour graphic printer
More +

Technical specifications

Max. test load
  • In tension:                     
    1000 kN
  • In compression:            
    2000 kN

Measurement load ranges
  • Automatic changeover of scale sensitivity, minimum reading value 100 N

Tensile test
  • Max. distance between grips:        
    700 mm
  • Gripping system:                             
    Hydraulic with remote control
  • Max. round dia.:                              
    40 mm
  • Max. plate specimens size:            
    70x35 mm

Transverse test (using accessory 70-C820/2)
  • Max. load:                                            
    200 kN
  • Max. distance between bearers:     
    800 mm

Bending test (using the accessory 70-C0820/31)
  • Max. load:                                            
    200 kN
  • Max. distance between bearers:     
    800 mm

Test speed
  • 0-83 mm/min

Crosshead adjustment speed
  • 500 mm/min

Max. piston stroke
  • 610 mm

Distance between columns
  • 330 mm

Dimensions
  • Testing  frame (piston fully out): 
    955x635x3960 mm
  • Control console:                               
    565x540x1350 mm

Weights and shipping cubage
  • Testing frame:                                  
    2900 kg approx.
  • Control console:                                 
    200 kg approx.
  • Total gross weight:                          
    4000 kg approx.
  • Shipping cubage:                                   
    7  m3  approx.

Ordering info

70-C0820/C 
Computer controlled Universal Testing Machine, for tension tests up to 1000 kN and compression tests up to 2000 kN, complete with three set of standard grips, PC, printer and software. 380 V, 50 Hz, 3 ph.

70-C0820/CZ 
Computer controlled Universal Testing Machine, for tension tests up to 1000 kN and compression tests up to 2000 kN, complete with three set of standard grips, PC, printer and software. 220 V, 60 Hz, 3 ph.

Accessories

Accessories
70-C0901/20 
Gripper for electro-welded steel screen. Used with the standard grips for flat specimens supplied with the 70-C0820/C tester. 
Weight approx.: 5 kg.
See picture No.

70-C0901/31  
Grip for seven cord strands 9.3 to 15.2 mm dia. Four pieces required. 
Weight approx.: 5 kg.


70-C0820/2     
Transverse test attachment. See picture No. For use with 70-C0820/C tester to perform the transverse test on steel specimens conforming to UNI 559 Standards.
  • Max. load 200 kN
  • Max distance between bearers 800 mm
  • Bearers:  length 120 mm x 50 mm dia.
  • Weight approx.: 100 kg           
70-C0820/31  
Bending test attachment. See picture No. For use with 70-C0820/C tester to perform the bending test on steel specimens conforming to ASTM E290 and UNI 564.
  • Max. load 200 kN
  • Max distance between bearers 800 mm
  • Bearers:  length 120 mm x 50 mm dia.
  • Weight approx.: 150 kg

70-C0820/5
Compressione device for 70-C0820/C. Includes: upper and lower platens dia. 216x50mm, spherical seat, distance pieces dia. 200x100mm and dia. 200x50mm. Resulting vertical daylight approx. 310mm.
       
70-C0901/5  
Set of compression platens for concrete specimens. Upper platen fit with spherical seat.
  • Platen dimensions: 310x435x50 mm
  • Weight approx. 150 kg
Coaxial extensometers
Universal extensometers
PC Cabinet
 
Spare parts

70-C0807/10 
Gripper for flat specimens up to 70x35 mm and round specimens from 5 to 9 mm dia. Four pieces are required per set.

70-C0807/12 
Vee gripper for round specimens from 9 to 19 mm dia. Four pieces are required per set.

70-C0807/14 
Vee gripper for round specimens from1 9 to 40 mm dia. Four pieces are required per set.

70-C0807/16 
Grip liner 9 mm thick. Four pieces are required per set.

70-C0807/18 
Grip liner 14 mm thick. Four pieces are required per set.

70-C0901/21 
Graphite grease for grips. 1 kg can. 

Documents

Partner's Documents