1. Size of concrete specimens for compression strength test Concrete cubic specimen: 150X150X150mm, 100X100X100mm, 200X200X200mm Cylindrical concrete specimen: diameter 150X300mm, diameter 100X200mm, diameter 200X400mm 2. Brief introduction of concrete compressive strength test procedure 1) Placing the concrete specimen---place the test specimen on the lower bearing block. Carefully align the axis of the specimen with the center of thrust of the spherically seated block. 2) Apply the load continuously and without shock until the specimen fails and record the maximum load carried by the concrete specimen during the test. Note the type of failure and the appearance of the concrete. 3.Relative test method GB/T 50081 standard for test method of mechanical properties on ordinary concrete ASTM C39 standard test method for compressive strength of cylindrical concrete ASTM E74 practice of calibration of force-measuring instruments for verifying the force indication of testing machine 4. Specifications for concrete compressive strength testing machine Max. capacity: 3000KN( lower or higher capacity can make to order) Grade of testing machine: grade 1 Distance between upper and lower compression platen: 320mm Stroke of piston:50mm Size of upper and lower compression platen:375X375mm Weight :about 900kg
We have been in this line for many years, our products is very competitive and resonable . Wooden cases, 100kg, 620x460x1530
The digital compression testing machine with dedicated universal computer software for reading purpose, self operating & monitoring has been designed to meet the need for a simple, economic and reliable means to test concrete / cubes etc. For its compressive strength. The design expressive of simplicity, both of construction and operation, makes the machine easy to use and maintain. The unit is compact, making it useful for site and Laboratory applications. Features: •High stability four pillar load frame. •Each frame tested for stability and alignment to avoid tension failure during a test and to ensure centre loading. •A precise large diameter spherical upper platen for optimum results. •Motorized hydraulic power pack or pumping unit with rapid approach and automatic over load protection. •Comes standard with safety guards on all four sides The complete unit comprises a loading unit which is of four pillar model construction having a cross-head with a spherical seated platen. The lower platen is attached to the top of the piston. The loading capacity is of 2000 kn, cubes up to 200 mm & cylinders up to 150 mm dia x 300 mm height can be tested using the appropriate spacers. Pumping unit attached to the loading unit by high pressure hydraulic flexible hose pipe. The pump facilitates rapid approach of the platens for daylight closure and also provides comprehensive control over the application of load. A control valve provides fine control over the loading rate for accurate pacing. Maximum load is held and retained for approx. 15 min, unless cancelled, using the panel mounted reset switch. Pace rate set for running the test can be maintained manually.
200 tones in different models. Portable models are very convenient and useful for site use where carrying frequently the specimens for testing in a standard laboratory is inconvenient and uneconomical. With special attachments, the machines can also be used for bricks, hallow or solid concrete blocks, using appropriate capacity machine. In general compression testing machine consists of a load frame with suitable platens and a pumping unit with pressure gauge, either hand operated or electrically-cum-hand operated. Load frame and pumping unit are connected by pressure pipes. Wooden packing
The AEC1112- Computerized Universal Testing Machine with a maximum load capacity of up to 10, 20, 40, 60, 80, 100 and 200 Ton with the provision of testing various samples of metals and its different alloys for the testing in tensile mode for round and flat specimens as per the national and International standard like ASTM, DIN, ISO, EU and IS standards etc. capacity of up to 10, 20, 40, 60, 80, 100 and 200 Ton.
Motorized compression tester Universial testing machine Concrete pipe & product tester Program cement autoclave Standard wooden box
1. Introduction and test principle of compression strength measuring The compression testing machine is to measure compression strength of corrugated boxes in the situation of pressure and protect functions of packages for the objects filled in the packages. Test principle: (1) Corrugated boxes compression strength test, loading to the corrugated boxes using a compression testing machine at a certain constant rate untill corrugated boxes are broken or till certain load or displacement are reached. (2) Corrugated boxes stacking test, loading a certain force to the corrugated box using a compression testing machine untill corrugated box is broken or sustain a certain time period. When measuring deformation of corrugated box during compression test, an original load should be set as a datum point. The datum point can refer to the following chart: Average compression force(N)Original force(N) 101-200 10 201-1000 25 1001-2000 100 2001-10000 250 10001-20000 1000 200001-100000 2500 2. Functions of compression testing machine This machine is applicable to metal, cementing compound, tubes, sectional bars, aerospace, petrochemical, waterproof rolls, wire and cable, textile, fiber, rubber, ceramics, food, mechanical packaging, geo-textile, film, wood, paper and other industries and quality supervision department, and it also can be used in college for teaching demonstration. 3. Specification of compression testing machine 1 Max. Load 20KN 2 Resolution of test force 1/300000 3 Resolution of displacement 0.001mm 4 Precision of crossbeam displacement 0.5% 5 Precision of deformation 0.5% 6 Measuring range of test force 1%-100%FS 7 Relative error of test force 1% 8 Relative error at zero point 0.5% 9 Speed of crossbeam 0.01-500mm/min 10 Precision of crossbeam speed 1% 11 Speed range of load 0.005%-5%FS/s 12 Precision of load speed When speed is less than 0.05FS/s, precision is within 1% of set value, when speed is more than 0.05FS/S, precision is within 0.5% of set value 13 Speed of deformation 0.005%-5%FS/s 14 Precision of deformation speed When speed is less than 0.05FS/s, precision is within 1% of set value, when speed is more than 0.05FS/S, precision is within 0.5% of set value 15 Stroke of crossbeam 900mm 16 Effective tensile height 650mm 17 Effective test span 400mm 18 Effective compression height 800mm 19 Diameter of compression platen 100mm 20 Voltage and power 220V,50Hz, 700W 21 Dimension of main machine 650X450X1650mm 22 Weight of main machine about 300kg
1.Description Chase friction testing machine is used to evaluate the frictional characteristics of material in braking system in accordance with the SAE J661,GB 5763-2018 and GB/T 17469-2012. Chase machine is suitable for small bench test of M1, M2, N1, O1 and O2 vehicles brake linings. This machine is widely used for product formulation R&D, Quality control and Certification etc. 2.Principle A constant pressure is applied to the sample,which will be pressed against the inner surface of the friction drum which rotates at a certain speed, so a friction force will be generated along the tangent direction of the contact surface. The friction coefficient of the tested sample can be determined by measuring the pressure and friction force. During the test, the Chase friction tester controls the temperature change at any time according to the requirements. The drum outer ring is used to assist the heating tube heating and the back suction cooling, so that the temperature change at the sample is stable and the temperature measurement accuracy is higher. 3.Features (1)Loading by Pneumatic servo with high precision control. (2)Temperature of friction drum is adjustable to adapt to different test requirements and different climatic condition. (3)Rubbing speed can be set freely between 0 and 1000 RPM. (4)The maximum load is up to 2000N. (5)This machine is controlled by PC. Speed, loads, temperature and test time can be preset by software. Test results are saved in computer. 4.Standards SAE J661, SAE J866, GB 5763-2018, GB/T 17469-2012, 5.Specifications Speed 0 to 1000 RPM Load 0 to 2000 N Temperature 0-600 (1112) Heating power 6KW Friction drum Ф277mm Power AC 380V Weight Approximate 2100kg
2. This testing machine mainly use computer and software to control the whole system, which can make the accuracy more precise. The hydraulic cylinder is imported from germany, which is high flow, good circularity and high availability. This machine can be used to test the heavy duty springs of haulage motor. This machine can adopt the electro-hydraulic servo testing system to operate. 3. The all parts of equipment can be maintained and repaired. The main functions of this machine is as follows, it can use fixed deformation or fixed load. Measurement system can be automatic zero, automatic calibration. Computer real- …
This machine is produced in wintime machinery co., ltd. It can test a variety of heavy duty springs such as locomotive springs¡¡écar springs or leaf springs. This testing machine mainly use computer and software to control the whole system, which can make the accuracy more precise. The hydraulic cylinder is imported from germany, which is high flow, good circularity and high availability. This machine can be used to test the heavy duty springs of haulage motor. This machine can adopt the electro-hydraulic servo testing system to operate. The all parts of equipment can be maintained and repaired. The main functions of this machine is as follows, it can use fixed deformation or fixed load. Measurement system can be automatic zero, automatic calibration. Computer real-time display test amplitude, test frequency, the number of fatigue. The load capacity is up to 500kn, and the test space is about 600mm(wide)* 1700mm(length), which can be adjust up and down. The max.Test amplitude is ¡¨¤40mm, and the frequency is about 0.1hz to 4hz. The maximum power should be 380 v ac, 110 kw. This machine can match different kinds of heavy duty springs such as locomotive springs¡¡écar springs or leaf springs.
