NG-Oedometer – Front Loading Oedometers – Consolidation Test
Soil Mechanics Testing Equipment
Standards
BS 1377-5, ASTM D2435, ASTM D3877, ASTM D4546, AASHTO T 216, NF P94-090-1, NF P94-091, UNE 103-405, UNE 103-602
Main Features
- Compact and robust design
- 3 lever arm ratio
- Screw jack support
- Same cell for standard and permeability test
- Possible connection with Data acquisition and processing system
This test determines the rate and magnitude of consolidation of a soil specimen restrained laterally and subjected to a number of successive increments of vertical loads.
The oedometer consists of a rigid aluminium alloy frame to avoid any distortion under load. The lever arm assembly is supported in precision self- aligning bearings and has three hanger positions for 9:1, 10:1 and 11:1 ratio. The oedometers fit with linear potentiometric transducers, can be connected to the Data acquisition unit - See optional accessories for more information.
Consolidation cells, dial gauge/displacement transducer, weight sets and bench are not included and have to be ordered separately. See accessories.
Technical Specifications
- Max loading (using 11:1 beam ratio): 1848 kg, corresponding to 9.061 MPa (92.40 kgf/cm2) on 20 cm2 specimen (50.47 mm dia.)
- Overall dimensions: 500x200x750 mm (height less hanger xwidth x length)
- Weight approx.: 21 kg
Weight Application Guide
| NG-Oedometer | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Cell Model | WF0320 | WF0321 | WF0325 | WF0326 | WF0335 | |||||
| Area [cm2] | 20 | 31:7 | 40 | 44.16 | 100 | |||||
| Beam Ratio | 1:10 | 1:11 | 1:10 | 1:9 | 1:10 | |||||
| Max pressure [kg/cm2] | 32 [kg/cm2] | 64 [kg/cm2] | 20 [kg/cm2] | 64 [kg/cm2] | 16 [kg/cm2] | 32 [kg/cm2] | 16 [kg/cm2] | 32 [kg/cm2] | 8 [kg/cm2] | 16 [kg/cm2] |
| Weight Set 26-WF0230/C2 | X | X | X | X | X | X | - | - | - | - |
| Weight Set 26-WF0230/D2 | - | - | - | - | - | - | X | X | X | X |
| Add. Weight 8 x 27-WF0275/A | - | X | - | X | - | X | - | X | - | X |
| Total Weight [kg] | 64 | 128 | 64 | 128 | 64 | 128 | 80 | 160 | 80 | 160 |
Related Products
Moisture Determination Balance - GenMoist
GenMoist is a moisture determination balance for automatically drying and weighing solid samples to calculate moisture content. Designed for soils, powders, granules, and similar materials, it provides continuous readouts of weight and percentage moisture loss throughout the cycle. A built-in timer, 160 g capacity, 0.001 g readability, quick stabilization, compact footprint, and RS-232 interface support accurate laboratory moisture analysis.
MULTISPEED Digital Automatic Universal Tester for Displacement Controlled Tests
MULTISPEED is a digital automatic universal tester for displacement-controlled soil and asphalt tests, including CBR, Marshall, indirect tensile, unconfined compression, uniaxial, and quick triaxial applications. With 50 kN capacity, infinitely variable 0.2–51 mm/min speed, rigid two-column construction, closed-loop speed control, automatic stop, rapid approach, and optional analog or digital measurement systems, it supports field and central laboratory workflows.
Dynamic Triaxial Systems 1000 kPa
Dynamic Triaxial Systems 1000 kPa are designed for advanced soil testing under controlled cyclic and dynamic loading conditions. With configurable capacities from 5 kN/5 Hz to 50 kN/20 Hz, adaptive PID control, up to eight input channels, waveform support, and compatibility with bender elements or local strain sensors, they help geotechnical labs evaluate soil strength, stability, and seismic response.
Automatic Triaxial Testing System
The Automatic Triaxial Testing System is designed for fully automated total and effective stress testing of soil specimens. Supporting CD, CU, UU, stress path, K0, anisotropic, and slow cyclic tests, it handles sample diameters up to 300 mm and loads up to 250 kN. Closed-loop control, high-resolution data acquisition, pressure control, and Clisp Studio software support reliable geotechnical analysis.
ACE - Automatic Computerized Oedometer
ACE is an automatic computerized oedometer for determining the rate and magnitude of soil consolidation under controlled vertical loading. Its compact load frame, dual pneumatic cylinders, high-precision servo-valve load control, and automated load or swelling modes improve repeatability and reduce operator intervention. The system supports geotechnical consolidation and swell testing workflows aligned with ASTM, AASHTO, NF, and UNE standards.
Shearmatic 300 - Large Shear Testing Machine
Shearmatic 300 is a large automatic shear testing machine for soils, geosynthetics, industrial slag, shale, brick rubble, and materials containing large particles. It accepts samples up to 300 mm square, applies 100 kN shear and vertical force, and supports ASTM D3080, ASTM D6243, BS 1377-7, EN ISO 12957, and ASTM D5321 workflows for representative shear-strength and interface-friction evaluation.
Resonant Column and Torsional Shear Tester
The Resonant Column and Torsional Shear Tester combines RC and TSS testing in one system for evaluating small-strain soil behavior. It measures shear wave velocity, shear modulus, shear strain, resonant frequency, and damping ratio through torsional loading, transducers, signal conditioning, pressure control, and data logging. Confining pressure up to 1 MPa and 50 mm specimen support make it useful for advanced geotechnical research.
Automatic Shear Testing Machine
The Automatic Shear Testing Machine, also known as NG-Shear DGEN, is built for direct shear testing of soil under consolidated drained conditions. It automates test running from consolidation to failure, helping reduce manual intervention while maintaining controlled speed. NF P94-071 compliance, closed-loop control, automatic operation, and geotechnical-focused design support soil stability assessment for foundations, slopes, embankments, and retaining structures.
Shearmatic - Automatic Shear Testing Machine
Shearmatic is an automatic shear testing machine for soil laboratories performing direct and residual shear tests. Its microprocessor control manages the stepper motor, axial pressure, force, displacement, safety system, and test stages through a closed-loop setup. Automatic pneumatic consolidation steps, no dead weights, 5 kN horizontal force, 8 kN vertical force, programmable speeds, RS-232 output, and high-resolution transducers improve repeatability.
Laboratory Vane Apparatus
The Laboratory Vane Apparatus measures undrained shear strength of soft cohesive soils directly in a sample or sampling tube. Available in manual and motorized configurations, it supports rapid geotechnical testing with controlled vane rotation, optional tube attachments, sample containers, and portable construction. ASTM D4648 and BS 1377:7 alignment make it practical for soil stability assessment, field studies, and laboratory research.