This machine is used to do stress-relaxation test of steel strand, galvanized steel wire, indented wire etc metal materials. The host machine adopts horizontal structure, adjust work space by lead screw, and the transmission system is inside the machine base, the machine has very high stiffness, which guarantee the accuracy of test results.
PC realizes variety of control modes, which include constant test force, constant displacement etc closed-loop control and test process control, all kinds of control modes can be switched without impact.
The computer can calculate the test results of 1000 hours according to the test data not more than 200 hours, it can also do continuous test of 1000 hours. The computer real time displays test force and test curves, can save and print the test results, test curves and test report.
--ISO15630-3: 2010 Steel for reinforcement and prestressing of concrete- Test methods part 3: prestressing steel --ASTM E328- 13: Standard test methods for stress relaxation for materials and structures
--ASTM A416 Standard specification for low-relaxation, seven-wire steel strand for prestressed concrete
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Model |
KSC-300 |
KSC-500 |
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Max. Load |
300kN |
500kN |
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Measuring range of test force |
12-300kN |
20-500kN |
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Accuracy of indicating force: ≤±1% |
≤±1% |
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Loading speeding |
100-5000N/s, arbitrary setting |
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Loading speed relaxation test space |
2000mm |
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Chuck displacement speed |
0.001-25mm/min |
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Accuracy of chuck displacement speed |
±0.5% |
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Displacement resolution |
0.001mm |
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Tensile stroke |
0- 100mm |
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Creep of load cell |
≤0.2% (within 30 minutes |
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Specimen Dimensions(Optional according to customer requirements) |
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PC Strand |
φ9.53mm,φ 12.7mm, φ 15.24mm |
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PC wire |
Φ3~ Φ9 |
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PC Bar |
Φ7~ Φ 18 |
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Resolution of temperature sensor: |
0 . 1 C |
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Accuracy of temperature sensor |
0.3C |
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Power supply |
3-phase,5 wires (3 live lines L, 1 null line N, 1 earth line PE) 380V,50Hz |
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(1) Horizontal Main frame: 1 set
(2) High precision load cell (American Celtron brand, 300kN): 1 piece
(3) Servo motor and driver (Japanese Panasonic brand): 1 set
(4) Servo motor reducer: 1 set
(5) PC strand fixtures:1 set
(6) High precision deformation measuring device (0.001mm): 1 piece
(7) Temperature meter: 1 piece
(8) Safety protect cover (aluminum frame + organic glass): 1 set
(9) Load calibration frame (installed on main frame): 1 set
(10) English testing software & Control card: 1 set
(11) Computer: 1 set
(12) Printer: 1 set
Warranty:
1. 2 years warranty for machine host. English technical to door service
2. English manual and Video CD for machine using and maintenance. We offer free training in our factory, welcome to visit and learn more about our machines.
3. Free accessories : Software ,manual, book, cd videos, USB control .
After-sales service:
Training to install (3 options):
A. We will supply the machine with training video and user's manual in English for installing, operation, maintenance and trouble-shooting, and shall give technical guide by e-mail, fax, telephone/MSN/ICQ and so on, when you meet some problems of installation, using or adjusting.
B. You can come to our factory for training. We will offer professional guide. Direct and effective face-to-face training.all sorts of tools and testing facility,we will also provide accomadation during training period.
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