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Computer-Control Servo Hydraulic Concrete
Compression Testing Machine

HT-8391PC
Specially designed for compression test of concrete. Precise control and easy operation is the basic principle of design.

High precision servo control and simple-operated program improves effectively the convenience and reliability of test.

HT-8391C
Besides servo hydraulic model the types of traditional hydraulic & manual control with the display by computer monitor or digital indicator (available to disply load & stress speed) can be selected as optional.

 

Model HT-8391PC
Capacity (ton) 1000 kN
(100 Tons)
1500 kN
(150 Tones)
2000 kN
(200 Tons)
3000 kN
(300 Tons)
Max. Vert. Clearance (mm) 340 340 340 400
Horiz. Clearance (mm) 330 330 330 380
Platen Size (dia.)(mm) 160 160 160/210 260
Ram Stroke (mm) 50 50 70 70
Loading Speed HT-8391C – Indicator model available to display stress speed
HT-8391PC – Computer model available to set 1.41~3.52 kg/sq. cm/sec
Return Speed Max.50 mm/min
Weight loading of frame (approx) 700 700 900 1000
Dimensions of loading frame (approx) 55x45x145 55x45x145 63x46x160 63x46x204
Dimensions of control box (approx) 100x65x121
Power 3ø, 220/380/415V, 50/60HZ
Control Unit
1. Computer-control hydraulic servo system
2. High precision automatic control valve
3. Control mode:
a. Constant speed ram stroke control
Control range: ram return position~max. ram stroke speed
Setting range: 0.5~70 mm/min
b. Constant speed load control
Control range: 5~100% of full scale load
Speed setting range: 01~2.0 full scale/min (but up to specimen material)
c. Constant speed stress control: 1~5 (kg/mm/sec)
d. Constant speed strain control:
Control range: 5~100% of full scale strain
e. Fixed displacement control
f. Fixed load control
g. Stress-strain speed control
4. Setting of testing parameters: database modularized
5. Display of testing parameters: valve and real-time curve (load, stroke or elongation) available to be displayed and switchable by computer
6. Control mode of operation: auto/manual function switchable
7. Emergency shut down button & overload protection (auto stop) function equipped
Measuring Unit
1. Method of load/displacement measurement:
a. IBM compatible computer system with a SVGA color monitor and a 24-pin dot matrix printer
b. load signal from high precision pressure load cell
c. displacement signal from L.V.D.T. (optional)
d. signal processed and amplified by low-noise high linearity electronics
e. complete with a friction-free ram
2. Signal amplification: 1,2,5,10 (optional 20 & 50)
3. Automatic load ranging and switch over to a higher next range when load exceeds 90% of present range
4. Accuracy of load: within±1%
5. Various kinds of curves available
* load-time * stress-time * load-vertical displacement (optional)
* load-horizontal displacement (optional) *Stress-strain (optional)
Data Processing System
1. Data-acquisition and data-analysis/clarification
2. Available to backup and modify the write/read path of data file
3. Self defined testing module based upon any kind of standard test norms (optional)
4. Software passed security protection (optional)
5. XBAR-R engineering diagram and SQC quality control diagram (optional)
6. Various kinds of software providing data manipulation and analysis (optional)
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