60 Ton Servo Hydraulic Fatigue Testing Machine Worm Gear Drive with
Microcomputer-control electro-hydraulic servo universal testing
machine mainly adopts main machine of underneath-type oil cylinder, transmission
mechanism of worm gear, used for tensile, compression, bending and shearing test for metal
and non-metal materials. It applies to various fields including
metallurgy, construction, light industry, aviation, aerospace, material,
institutions of higher education and scientific institutions, etc.
Its test operation and data process meet requirements of standard
GB228-2002 “Material in room temperature: test method of metal tensile”.
|Capacity||300KN (30T)||600KN (60T)||1000KN (100T)|
|Displacement measurement resolution||0.01mm|
|Deformation testing accuracy||±0.5%|
|Control range for Constant force, constant deformation, constant
for Constant force, constant deformation, constant displacement
When set testing value <10%FS,
the accuracy is with ±1% of the set testing value
When set testing value ≥10%FS,
the accuracy is within ±0.5% of the set testing value
within ±2.0% of set value when speed<0.05%FS,
within ±0.5% of set value when speed≥0.05%FS,
|Max moving speed of piston||80mm/min.||80mm/min.||70mm/min.|
|The Max tensile space(Including stroke of piston)||800mm||800mm||850mm|
|The Max compression pace(Including stroke of piston)||700mm||700mm||750mm|
|Flat sample clamping thickness||0~15mm||0~30mm||0~40mm|
|Clamping diameter of Round specimen (mm)||φ6~φ26||φ13~φ40||φ13~φ60|
|Support roller space of bending test||350mm||450mm||450mm|
|Width of support roller||140mm||140mm||140mm|
|Diameter of pivot||30mm||30mm||40mm|
|Clamping way||Hydraulic clamping|
Programmable amplifier plug-in mounted inside the PC,
automatic zero setting and calibrating
Oil source: 1140x700x930mm
Oil source: 1140x700x930mm
Oil source: 1140x700x930mm
|Weight||About 2800kg||About 3000kg||About 4500kg|
|Power supply||Three phases AC380V 50Hz or specified by user|
- The main machine
The main machine adopts underneath type of oil cylinder, tensile
space is above the main machine, compression and bending space is
between the lower cross beam and working station.
- Drive system
It adopts transmission mechanism of worm gear traversing movable
cross-beam to adjust test space, so that the drive system and
positioning system are completely separated, geometric center of
loading system is in full accordance with center of force, and also
guaranteeing the coaxiality of upper and lower jaw and the
durability of machine.
- Hydraulic system (table-type oil source)
3.1 Hydraulic principle:
As shown in figure 2, it is load-adaptive meter in speed control
Hydraulic oil in the fuel tank enters into oil circuit when the
motor drives the oil pump, it flows through non-return valve,
10μhigh-pressure filter, differential pressure valve group and
servo valve to enter into oil cylinder. The computer sends out
signal to the servo motor, to control the mouth and direction of
servo valve, so as to control the flow entering into the oil
cylinder, realizing control of uniform-speed test force and
Figure 2: hydraulic principle
- It adopts high-pressure oil pump, with low noise and steady
- It adopts integrated design for dynamic system and operating
platform, easy to operate and saving test space at the same.
- The surface is disposed with spraying plastics, so the appearance
Full-digital measurement and closed loop control system has many
advanced characteristics and technological innovation, mainly
4.1 Realizing four kinds closed loop control system control of
testing force, specimen deformation, cross-beam displacement and
4.2 Data collecting system is composed of 4-path high precision
24-bit A/D shift channels, the maximum resolution ratio reaches
the whole process is stepless.
4.3 It adopts original famous-brand integrated components like BB,
AD and Xilinx, with full-digital Design.
4.4 It conforms to PCI bus standard, the microcomputer is automatic
identification and installation for microcomputer, achieving “plug
4.5 There is no analogue element like potentiometer for electronic
measurement system, guaranteeing interconvertibility and convenient for
maintenance and replacement.
It conforms to more than 30 relevant regulations of national
standards, like GB228-87,GB228-2002.
1. Computer control system: it has advantages of high integration
level, stable performance and convenient adjustment. Can carry out
collection for test data and real-time dynamic display for test characteristics curve; test data file can
be saved by the method of Access
common database or SQLserve large database, which is convenient for achieving users’ resource sharing and
network management, and
This software have an easy access to various word2000 reports users
defined, solving the problem that different users or one same user
different requirements for the reports in different times, and it
can deal with original data of test force, displacement and time
and their derived
2. Protection function: this tester has limit protection of
software and machine, can dynamically set the ratio of automatic
maximum load; it has overcurrent, overvoltage, overload and other
3. Can realize automatic mark for load channel, intuitive and
4. Batch test can realize classified display for curve, and curve
5. This software can realize speed set user defined, and speed
adjustment by computer. It can also realize high precision speed
adjusts speed stage and code at any time.
6. Monitoring test process: can realize real-time display for
various parameters like test force, displacement and curves in the test.
7. Hierarchical management function for software permissions: to
improve safety of software and data, this software can realize
management function by setting different passwords protection.
8. Result representation function: after finishing and saving test,
users can open it at any time in the future and reanalyze test data
9. Users can select load-time, load-displacement and
displacement-time curves for test and data display, saving,
analysis and printing according
10. Curve pointwise traverse function: can click force and
deformation value on the curve by mouse, to acquire parameters of each point.
11. Result contrast function: can observe various test curve at the
same time, and can realize Characteristics contrast of specimen to be
analyzed by superposition and fractionated gain of various curves.
12. Force interface: force channel interface and test software can
equip all kinds of sensors according to users’ need, and can conduct mark,
parameters modification and normal test.
13. Data sampling frequency: can select high-speed sampling
frequency according to users’ test requirements.
Basic configuration of system:
Main machine of tester (Main machine adopts underneath type of oil
Servo control oil source, Table type
2.1 Electro-hydraulic servo valve
2.2 High-pressure oil pump
3. Two-path programmable amplifier, resolution is 1/300,000
4. High-precision hydraulic load cell
5. Guyed displacement measurement system
6. Full set attachment grips include: tensile fixture &
compression fixture & bending fixture
7. Dedicated control software
8. Lenovo computer
9. HP A4 ink-jet printer
10. Technical data: Operation manual