Automatic Uniaxial and Triaxial Test System

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Descripción General

The Automatic configuration for determining the elastic modulus and strength characteristics of rock specimens under uniaxial and triaxial conditions...

Caracterìsticas Principales

Automatic performance of uniaxial and triaxial tests with individual but combined control of axial load and confining pressure
Axial and horizontal stress are increased isotropically up to a defined level in automatic way
The 2 consoles are operated independently and the failure envelope is obtained by few individual tests (single - stage) with automatic application of axial load and confining pressure at different levels
Cell pressure is maintained constant (± 1%) and axial stress is increased automatically at constant load rate up to specimen failure (single-stage)
AUTOMAX Multitest console allows to perform tests under load and strain/displacement console

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Especificaciones Tecnicas

Descripción

The Automatic configuration for determining the elastic modulus and strength characteristics of rock specimens under uniaxial and triaxial conditions is based on the AUTOMAX Multitest control console for axial load and SERCOMP 7 for confining pressure. The 2 consoles are operated independently and the failure envelope is obtained by few individual tests (single - stage) with automatic application of axial load and confining pressure at different levels. AUTOMAX Multitest allows to perfom tests under load and strain control.
The confining pressure into the Hoek cell, applied by SERCOMP 7 is also measured by AUTOMAX Multitst for simultaneous plot of all test quantities, e.g. stress, strain and cell pressure.

Note: For a typical configuration of an Automatic triaxial test system see Additional information.

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Especificaciones Tecnicas

AUTOMAX Multitest
The AUTOMAX Multitest consists of an ergonomic control console which houses the power unit and the PC.
Specifications
Hydraulics

Dual stage pump: centrifugal low pressure for fast approach and automatic switching to radial multi-piston high pressure for loading
DC motor. 720 W, 50-60 Hz
Maximum working pressure 650 bar
Third and fourth frame option, active frame selection by software
Flow-sharing technology to perform loading and unloading cycles
ES Energy Saving technology to reduce power consumption and silent operation
Hardware
131.000 points effective resolution
Closed-loop P.I.D. control
4 channels for load sensors (pressure transducers/load cells)
1 channel for confining pressure (acquisition only)
6 channels for strain/displacement transducers (potentiometers, magnetostrictive, LVDTs)
3 channels for strain gauges
Memorization of the calibration curve enables sensors to be connected and used immediately
Digital linearization of the calibration curve (multi-coefficient)

SERCOMP 7
The hydraulic unit SERCOMP 7 controls the lateral pressure in the Hoek cell in case of triaxial testing. A cooling device is incorporated, for superior control and uniformity of pressure throughout the test.
The control console includes a large graphic display with a membrane keyboard allowing easy setting and test monitoring.
Specifications
Hydraulics

Maximum working pressure: 700 bar
Maximum oil delivery: 0.7 litres/min
Flow control: by servo-valve system
Hydraulic ports: 2
Power: 750 W
Voltage: 230 V, 50 Hz, 1 ph (other voltages are available - see Ordering info)
Dimensions: 470x410x1000 mm(d x w x h)
Weight: 120 kg (approx.)

Hardware

Large graphic display with a membrane keyboard for inputting test data
65.000 points effective resolution
Closed-loop P.I.D. control

Automatic Uniaxial and Triaxial Test System

Descripción General

Caracterìsticas Principales

Descripción

Productos

Especificaciones Tecnicas

Normativas

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