STD-600B Electro-Hydraulic Universal Testing Machine, 60-ton

STD-600B Electro-Hydraulic Universal Testing Machine, 60-ton Capacity

Operating Mechanism: electro-hydraulic actuator (EHA), with AC servo motor and driver, featuring a closed-loop control system
Test capabilities: Tensile, Compression, Bending, and Cyclic tests using displacement control. Compatible with a wide range of specialized grips (if relevant accessories are available)
Standard Compliance: ISO 6892, ASTM A370, ASTM E8M, ASTM E9-09, ASTM E-209, ASTM C39M, ASTM C1609M-1/2, ASTM C13314 standard specifications
Low cost, reduced noise, low depreciation, and low power consumption (proportional to the applied load)
Equipped with lateral jacks and a locking mechanism for crosshead displacement (moveable table)
Equipped with high-precision low-profile load cell, class 0.5 with capacity of 60000 kgf (instead of oil pressure sensor)
Equipped with precise sensor for measuring crosshead displacement with 0.001 mm resolution; loading rate accurate control, specially at low speeds using feedback from actuator, extensometer, or load cell
Fully computerized control via USB and RS-232 serial port with DSP-based processing (no PC type limitation)
JADOO Controller software (Windows-compatible) for tensile, compression, cyclic and custom tests. Generates complete reports and multiple graphs such as: Force–Extension, Stress-Elongation, Force-Time, and Extension-Time
Closed-loop speed control in real time, adjustable from 0.01 mm/min to 150 mm/min
Capability to control speed with different methods (constant displacement rate, constant strain rate, constant true strain rate), and capable to define various tests with different loadings (force or stress, unilateral and incremental) when using JADOO software
Equipped with digital non-contact electronic ruler mounted on the jack for full stroke measurement
Compatible with extensometers for tensile, compression, and bending tests
Capable of mounting a variety of specialized tensile and compression jaws, platens , and fixtures
Compact hydraulic unit integrated into the PC table; no auxiliary oil cooling required
Portable control keyboard for convenient operation
High repeatability of results
Rigid frame, easy operation, floor-mountable design

The tensile testing machine operates hydraulically and controls the load through an electro-hydraulic actuator (EHA). Displacement precision is enhanced by an AC servo motor and driver. Feedback from a non-contact displacement sensor mounted on the actuator enables highly precise testing at very low speeds (down to 0.01 mm/min).

Such performance is typically problematic and unattainable with conventional hydraulic systems. Unlike traditional setups, the EHA does not require continuous high-power operation, thereby reducing heat loss, power consumption, and mechanical wear – eliminating the need for an auxiliary oil cooling system. A further advantage, often highlighted by the operators, is the significantly reduced noise level compared to standard hydraulic system.

A low-profile load cell directly mounted on the grip senses force changes during testing. Since the measurement is not based on oil pressure, error from packing friction is eliminated. The load cell is designed to minimizes the effect of lateral forces applied to the load cell, significantly improving force measurement accuracy.

The load frame is designed to accommodate a variety of grips for conducting tensile, compression, and bending (unilateral incremental) tests at low cost. For operator convenience, lateral jacks are provided to adjust the position of the upper crosshead (moveable table), thereby increasing the machine stroke. In addition, the combination of a moveable block clamped by hydraulic clamps and displacement achieved through lateral jacks allows the testing of large specimens.

The actuator and machine stroke enable testing of longer specimens, such as wire ropes and strand wires. The low-profile chassis facilitates the mounting of heavy specimens, including concrete sleepers, together with the required accessories.

Precise speed control is ensured by feedback from a high resolution (0.001 mm) non-contact electronic ruler, which stabilizes test speed across a wide actuator range. These capabilities allow operator to perform tests in accordance with ASTM A370, E8M, E9, E-209, C39M, C1609M, ISO6892-1/2, and ISO13314 standards.

High-resolution extensometers are available for precise strain measurement directly from the specimen rather than from the actuator. The system supports SANTAM’s STM Controller and JADOO Controller software. With these, the machine can record displacement through the extensometer attached to the specimen while simultaneously using the extensometer as feedback for closed-loop control under JADOO software, ensuring precise loading rate.

Additional advantages include quick and convenient mounting of tensile and compression jaws and platens on the main grip.

STD-600B with lateral jacks is designed to perform tensile, compression and bending tests on various metal materials with both standard and oversized specimens. It supports a wide range of grips, including WG and lateral tensile grips with pneumatic and hydraulic clamping, specialized fixtures, compression platens and bending grips. This machine is widely used in QC laboratories across industries, research centers, universities, and test service labs. It is suitable for evaluating the following material properties and applications:

Tensile testing of rebars and various plain bars
Tensile testing of wire ropes, wires, and electrical fittings
Testing bolts, nuts, metal connectors, and composite product components
Quality control of various ferrous and non-ferrous products
Testing and quality control of steel sheets
Testing concrete specimens
Testing welds and welded joints
Bending test of concrete sleepers

JADOO Software Capabilities

Specialized Windows-compatible software for defining and performing a wide range of tests, including creep, tensile, compression, bending, cyclic, step, relaxation tests
Generates comprehensive reports with advanced features fully compliant with the catalog’s technical specifications
Capable of applying advanced test speed (control rate) using various methods:
Constant extension rate, constant strain rate, constant force rate, constant stress rate
Constant true strain rate
Constant true stress rate
Capability to control and receive feedback from the extensometer under constant extension, constant strain rate, and constant true strain rate loading modes
Capable of applying preloads with engineering parameters such as stress, force, extension, and …
Cyclic test: capable of testing at various rates (force-extension, stress, and strain) and applying control limits without restrictions on the number of cycles
Step test: capable of defining separate speeds at any control mode (force, extension, or strain) with customized set points
Advanced creep test: conducted in three stages, with selective data acquisition in the third stage
Relaxation test: conducted in three stages, with selective data acquisition in the third stage
Capable of defining the second test speed based on various parameters
Capable of determining the data acquisition rate in real-time for both short-term and long-term tests
Equipped with PID controller coefficients for all control units (speed, extension, force, strain, and driver coefficient)
Reporting: capable of defining any point on the graph, either by operator discretion or according to engineering definitions in relevant standards
Capable of generating results for Elastic, Offset, Secant, and Tangent modulus at specified points
Capable of plotting graphs for Force-Extension, Stress-Elongation, Force-Time, Time-Extension, Stress-Time, Elongation-Time, and Stress-Strain
Supports simultaneous display and comparison of multiple graphs, with reporting of associated parameters
Graphs and force values can be displayed in g, kg, N, kN, lb, Ton-Force, dN
Allows input of different specimen dimensions in the software using multiple parameter options