computer-controlled rock stress direct shear apparatus

• After-sales Service: field service, spare parts, remote instruction
• Warranty: 1year
• Max Diameter of Workpiece: 150*150*150
• Shipping Cost: Estimated freight per unit.: about shipping cost and estimated delivery time.
• Currency: US$
• Return&refunds: You can apply for a refund up to 30 days after receipt of the products.
• Model NO.: YZW50
• Mass Scope of Workpiece: 1kg
• Type: Material Testing Machine
• Maxcapacity: >1000KN
• Accuracy Grade: 1
• Load Way: Electronic Load
• Loading Method: Dynamic Load
• Display: screen display
• Control: computer+manual
• Weight: >2000Kg
• Power Source: AC380V/220V 50HZ
• Oil Cylinder Position: Top
• Transport Package: Wooden Box
• Specification: 1120*800*1735
• Trademark: JNKY
• Origin: Jinan, Shandong
• HS Code: 90248000
• Production Capacity: 1000set
• Package Size: 1140.00cm * 820.00cm * 1755.00cm
• Package Gross Weight: 3000.000kg

Product Description

YZW30/50/100/200 computer-controlled rock stress direct shear apparatus

Brief introduction:
The direct shear apparatus is designed and manufactured according to China national standard <Test Method of Rock for Highway Engineering>(JTG F41-2005) and <Specifications for Rock Test Water Conservancy and Hydroelectric Engineering>(SL264-2001).
Purpose and Application:
* direct shear test of the structural surface of rock (such as: Joint surface, layer inside surface, slice inside surface, crack surface and so on);
* direct shear test of the rock itself and the cementing interface between concrete or mortar and rock ;
* shear strength test of concrete and other materials;
* shearing strength test of various rock, such as: round rock, square rock, cube rock, rock fragment and rock's uniaxial and triaxial compressive strength, tensile strength, shear strength, elastic modulus, wave ratio, permeability, Biot constant, stress sensitivity, dynamic rock mechanics parameters, P wave, S wave velocity, acoustic porosity, fracture toughness and stress orientation and test parameters such as size, Kaiser effect
main technical parameters

Model	YZW30	YZW50	YZW100	YZW200
Normal direction rated pressure	≤500kN	≤300kN	≤6000kN	≤2000kN
Normal direction displayed value precision	Grade I	Grade I	Grade I	Grade I
Tangential direction rated pressure	≤300KN	≤500KN	≤1000KN	≤2000KN
Tangential direction displayed value precision	Grade I	Grade I	Grade I	Grade I
Loads-adding control method	computer control and manual stepless speed control system
Overall weight	2500kg	2500kg	3400kg	5000kg
Normal direction shearing loads-adding speed	0.1~20KN/S(can be set)	0.1~20KN/S(can be set)	0.1~20KN/S(can be set)	0.1~20KN/S(can be set)
Load resolution	0.01kN	0.01kN	0.01kN	0.01kN
displacement measurement	Computer sampling(0.001mm)	Computer sampling(0.001mm)	Computer sampling(0.001mm)	Computer sampling(0.001mm)
Loads-adding method	electric hydraulic	electric hydraulic	electric hydraulic	electric hydraulic
Working voltage	380V/220V	380V/220V	380V/220V	380V/220V
Overall dimensions(mm)	1200×800×1735	1200×800×1735	1300×1000×1900	1600×1300×1800
configuration	HP/Lenovo computer,color LCD,HP color printer
Direct shearing case	standard

Main Features:
1) Computer automatic control, that is, speed, force value, displacement, and other parameters are controlled and displayed in the computer, and automatically analyzed and calculated in the database.
2) The test curve will be recorded  in real-time during the test process,  displayed saved, and sampled at high speed.
3) Data and report processing functions provide users with a special report editing tool for graphic layout, which is characterized by flexible operation, simple and easy to learn, and can easily print test curves and test values
4) Report forms can issue: a curve of shear stress-shear displacement; the curve of shear stress - normal direction displacement, the curve of shear stress - normal direction stress(C - Φ value), can display the stress-strain curve at the same time, force-time curve, force-displacement curve
5) Real-time display of the current normal direction force value and peak, tangential direction force value and peak value, test process information, current displacement, etc.
6) The software is equipped with an automatic zeroing system of displacement and force value, which eliminates such factors as errors in manual meter reading
7) With overload protection, when the force or displacement exceeds the rated theoretical value of the testing machine, automatic unloading and stop the test
8) The area, height, ambient temperature, and other parameters of each group of tests can be changed or filled in according to the actual situation
9) Two sets of system control free conversion, ie. manual control system and computer automatic control system. Easy replacement, ensure that the computer virus, not normal boot, and other objective factors exist, the work will not be affected.
10) The displacement measurement adopts four displacement meters for diagonal measurement, and the data is transmitted to the computer in real-time
11) The test procedure can be edited by the operator on-site according to the actual situation
12) The pressure holding point can be set at any multiple points, the speed at each stage can be set at any time, and the pressure holding time can be set at any time. After reaching the preset conditions, it will automatically switch to the next stage
Main operating interface