General Description

Introduction This machine has been designed for use, in the field or laboratory to perform tension tests on steel rebars up to 26 mm dia. and compres...
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Description

Introduction
This machine has been designed for use, in the field or laboratory to perform tension tests on steel rebars up to 26 mm dia. and compression tests on cylindrical concrete specimens up to dia. 160x320 mm and cubes up to 150 mm, using the appropriate accessories. 
Load measurement and data acquisition by the DIGIMAX UTM microprocessor digital display and processing unit.

Frame 
The frame consists of a very rigid frame with double acting cylinder assembly.
It includes a set of tensile holders, 4 wedge grips for flats up to thickness of 13 mm, 4  wedge grips for rounds up to 26 mm dia. and 2 sets of grips' liners 4 and 8 mm thick.
Spherical seat and compression platens for concrete specimens are not included and have to be ordered separately (see Accessories).
High precision displacement transducer, 150mm travel, can be mounted (as accessory) on the piston/cylinder assembly to obtain stress/elongation graph based on the crossheads separation measurement.

DIGIMAX UTM digital display and processing unit
The machine is fit with Digimax UTM, microprocessor digital system with large graphic display 240x128 pixel. For elongation measurements it shall be connected to the electronic extensometers (Coaxial or Universal, See Accessoires) directly mounted on the specimen and/or to the high precision displacement tranducer mounted on the frame for grips separation measurement (see Accessories)
Easy connection by Ethernet cable to PC using UTS Light software to obtain the stress/elongation graph and test results complete elaboration conforming to EN Standard. See Accessories

Hydraulic power pump
The power system consists of a dual-stage pump: low pressure/high delivery for fast piston approach and high pressure/low volume for loading. It is optimised to prevent any overheating effects even under intensive use and severe working conditions. A special flow control valve allows the rate of loading to be pre-set conforming to specifications.

 

 

 

Products

Code
Description
Units

Technical Specifications

Frame

  • Load capacity in tension: 500 kN
  • Load capacity in compression: 1000 kN
  • tensile jaws including: 4 wedge grips for flats up to thickness of 13 mm, 4  wedge grips for rounds up to 26 mm dia. and 2 sets of grips' liners 4 and 8 mm thick.
  • Maximum distance between grips (tensile mode): approx. 300 mm
  • Specimen length (tensile mode): approx. 500 mm
  • Max vertical clearance for compression (with 70-S0012/1): 695mm
  • Max. ram travel: 150 mm
  • Distance between columns: 310 mm
  • Overall dimensions approx (w x d x h).: 900 x 400 x 1750 mm
  • Weight approx.: 500 kg


Digimax Plus data acquisition and processing system

DIGIMAX UTM:

  • Touch screen graphic display 240x128 pixel
  • 4 channels: 2 channels for load sensors and 2 channels for extensometers. A maximum of 3 channels (1 for load, 1 for extensometer, 1 for crosshead displacement transducer) selected by the user can be contemporaneously used.
  • Effective sampling rate up to 50 / sec
  • Effective resolution 17 bit (131000 divisions)
  • Data storage on USB pen drive (included)
  • Connection to PC via LAN port (UTS Light software )
  • Real time clock and date
     

TENSILE TEST:

  • Simultaneous display of load, stress and, using an extensometer or crosshead displacement transducer, specimen elongation (acquisition only)
  • Graphical test data option showing the load/elongation curve (when an extensometer, or  the crosshead displacement transducer, is used)
     

 COMPRESSION TEST:

  • Simultaneous display of load and stress
     

Hydraulic power pump

  • Complete with self-compensated proportional valve for the manual preset of load rate
  • Maximum pressure: 650 bar, oil delivery 0.5 litres/min
  • Maximum usable oil volume: 3.5 litres
  • Power: 750W
  • Weight: 55kg (approx.)

 

Software

UTS Light data acquisition and processing software (included) for tensile test according to EN Standard allowing:   
  • Input of specimen identification, test and name of customer
  • real time downloading of test data
  • simultaneous display of stress/time and stress/elongation by using coaxial extensometer series 70-C0961/xx or universal extensometer series 70-C0954/x (see Accessories) or displacment transducer reading crosshead separation travel (included)
  • elaboration of tension test results once test is completed: ReH, ReL or Rp, final elongation, etc. in conformity to EN ISO 6892-1 (method B) and EN 15630-1 (for steel rebars) when extensometer is adopted
  • unit of measurement: kN, mm, MPa
  • printout of test reports
  • multi-language software

 

 

Standards

  • EN ISO 6892
  • EN ISO 7500-1
  • EN ISO 15630-1

Accessories and Spare Parts

Code
Description
Units