MULTILOADER Automatic Variable Speed 50kN Tester

The new MULTILOADER by CONTROLS is the versatile solution for laboratories needing fully automatic performance and elaboration of displacement-controlled tests.

The seven channels for data acquisition and fully variable testing speed enables the operator to carry out a wide range of tests including the most common CBR, Marshall and Indirect tensile.

Description

A flexible standalone machine, the new MULTILOADER with Touch Screen Digital Speed Control and Data Acquisition, is the smart choice for road testing labs and generally for any test that requires displacement/speed control. In addition to CBR and Marshall tests, the 50kN capacity and fully variable speed of 0.05 to 51 mm/min enable many other applications, including quick undrained triaxial and unconfined/uniaxial soil tests, indirect tensile strength, IDEAL-CT, semi-circular bend, and Leutner shear tests.

The MULTILOADER tester has a rigid two-column structure with a height-adjustable upper crossbeam. An ergonomic cabinet contains the load jack, DC motor, and controls. The microprocessor makes sure that the test speed and travel are automatically controlled. Prior to the test, the operator can impose travel limits to automatically end the test.

No external transducer is required for displacement measurement. The firmware enables the setting of up to 18 test profiles and the performance of transducer calibrations while storing data onboard. The user interface is a large integrated 7″ touchscreen graphic display, supplied with a stylus pen, which can show the real-time test graph and the transducer data and allows the testing data to be stored on a USB pen drive or downloaded through a LAN communication port in Controls, txt or ASCII format. All the accessories have to be ordered separately. The machine has built-in data acquisition with six channels dedicated to two strain gauge load cells and two potentiometric linear transducers; one of each can be used during the test. The processing unit’s ability to regulate the speed in a closed-loop mode without having experienced speed calibration effects or tension fluctuation effects is a crucial feature.

The front panel is fitted with an emergency button for prompt stopping of the machine.

Main Features

  • Stand-alone automatic 50kN digital load frame
  • Universal machine suitable for a wide range of tests, including BMD tests
  • Closed-loop speed control
  • Automatic failure detection
  • Integrated transducer calibration facility
  • Infinitely variable speed from 0.05 to 51 mm/min
  • 7” touchscreen capacitive colour display for viewing real-time graph and test data
  • Fully automatic test control facility
  • Adjustable travel limit devices
  • Remote control from PC by using optional software
  • CE emergency stop button

Technical Specifications

Data download: Ethernet port, RS232 port or USB pendrive
Memory: 16GB internal memory
Number of channels: 7 (1 for actuator displacement, 2 for load and 4 for displacement)
Channel resolution: 24 bit
Sampling frequency: up to 100Hz
Test speed: from 0.05 to 51 mm/min
Type of control: displacement
Max ram travel: 100 mm
Max vertical span: 765 mm
Max horizontal span: 270 mm
Overall dimensions: 435 x 670 x 1265 mm (W x D x H)
Weight approx: 110 kg

Downloads

Multiloader Brochure (PDF)

Ordering Information

34-V1182 MULTILOADER automatic compression testing machine with digital control and readout unit, motorized ram, two-column structure and adjustable crossbeam. 220-240V/50-60Hz/1Ph

Accessories*

76-SW/BMD PC Software with remote control of the automatic testing machine, data elaboration and test certificate printout
34-V0107/CBR Test set to perform the CBR test in the digital mode, including:

  • 82-P0375 Load cell 50 kN capacity
  • 82-P0375/C Adapter to fit load cell (two pieces)
  • 82-P0322 Displacement transducer, 25 mm travel
  • 34-T0104/81 Adjustable transducer holder
  • 34-T0103/1 Adjustable CBR penetration piston
34-V0107/MAR Test set to perform the Marshall test in the digital mode, including:

  • 82-P0375 Load cell 50 kN capacity
  • 82-P0375/C Adapter to fit load cell (two pieces)
  • 82-P0322 Displacement transducer, 25 mm travel
  • 34-T0104/81 Adjustable transducer holder
  • 34-T0104/13 Compression device extension
  • 34-T0104/10 Compression device
  • 76-B0033/4 Stability mould for 4″ (101.6 mm) diameter specimen
34-V0107/CM Test set for performing CBR and Marshall tests in digital mode, including:

  • 82-P0375 Load cell, 50 kN capacity
  • 82-P0375/C Adapter to fit load cell (two pieces)
  • 82-P0322 Displacement transducer, 25 mm travel
  • 34-T0104/81 Adjustable transducer holder
  • 34-T0103/1 Adjustable CBR penetration piston
  • 34-T0104/13 Compression device extension
  • 34-T0104/10 Compression device
  • 76-B0033/4 Stability mould for 4″ (101.6 mm) diameter specimen
34-T0104.CON UCS attachment for CBR piston

Comprises upper and lower platens with ball seat attachment to CBR piston (more info)

*Accessories for other applications also available

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