The pressure testing machine is a high-tech, versatile automatic pressure testing machine integrating modern mechanics, electronics, and hydraulics.Mainly detects compressive strength (resistance to pressure) and physical performance stability under constant load of various bricks, blocks, cement products, hollow bricks, S-bricks, paving bricks, cement bricks, dock bricks, refractory materials, engineering materials, and stone materials.
Applicable industries:Widely used in laboratories across industries such as highways, railways, bridges, construction, building materials, and higher education institutions.
Functional Features
The measurement and control system adopts a high-precision digital servo valve and manual control valve, featuring force closed-loop control. It supports two control methods: constant load rate loading, constant stress rate loading, and manual loading, ensuring high control accuracy and reliability. A microcomputer is used for electronic measurement and automatic completion of compression strength tests, automatically calculating and printing reports. It is widely used in the construction industry and testing organizations.
Hydraulic system
Hydraulic oil from the tank is pressurized by a high-pressure pump driven by an electric motor and flows through a check valve, high-pressure filter, differential pressure valve group, and servo valve before entering the cylinder. The computer sends control signals to the servo valve to regulate its opening and direction, thereby controlling the flow into the cylinder and achieving constant test force control.
Force measurement system
Adopts a high-precision amplifier and A/D converter, with no range switching throughout the process, and displays load, peak value, loading speed, and strength in real time;
Constant speed loading is achieved using a PID closed-loop control strategy, with the loading curve displayed in real time.
Automatic interval timing and continuous testing;
Querying and printing test results is flexible and convenient;
Safety protection device
When the test force exceeds the maximum test force3%In case of overload, the oil pump motor will shut down.
GB/T 2611-2007 General technical requirements for testing machines;
GB/T 2611-2007 General technical requirements for testing machines;
JB/T 7406.1-1994 "Testing Machines—Terminology—Material Testing Machines";
GB/T 16825.1-2008 "Verification of static uniaxial testing machines - Part 1: Verification and calibration of force-measuring systems for tensile and/or compressive testing machines";
JJG 139-2014 "Tensile, Compression, and Universal Material Testing Machines";
JB/T 6147-2007 "Packaging, Packaging Marking, and Technical Requirements for Storage and Transportation of Testing Machines";
Name | Parameters | Notes |
Maximum test force (kN) | 2000 | 3000 |
Test Force Measurement Range | 5%-100% | 5%-100% |
Relative error of test force indication | ±1% of reading | ±1% of reading |
Distance between upper and lower pressing plates (mm) | 310 | 330 |
Piston stroke (mm) | 50 | 100 |
Column spacing (mm) | 260 | 370 |
Clamping plate size (mm) | Φ300XΦ300mm | 370*370 |
Main unit dimensions (mm) | 440×500×1450 | 1100*950*1900 |
Oil source overall dimensions (mm) | 950*560*1000 | 1050*560*1000 |
Motor Power (kW) | 1.1 | 1.5 |
Total weight (kg) | 950 | 1800 |
Test software: capable of data acquisition, processing, analysis, storage, and display.
User Management: Users can be created and edited, with dual permission management functionality.
Control method: Manual control.
Powerful analysis and processing capabilities:
Users can select common curves (stress-strain, load-deformation, load-time, load-displacement, displacement-time, deformation-time, etc.), perform local magnification (stepless zoom without levels), traverse, move the center point, automatically identify characteristic points (elastic segment, yield point, etc.), overlay multiple curves, manually mark, compare results, preview prints, and manually revise data effectively.
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