SR Enterprises Ashok Nagar, Hyderabad, Telangana

Vickers hardness testing machine Hard bearing type horizontal end driven two plane machines with microprocessor based or DSP based measuring panel.Measures & stores the unbalance in gms along with the angle for two selected correction planes on digital display.

Suitable for finding out Vickers / Brinell hardness of metals from soft to very hard. Push button control for load selection. Large size table for wide range of springs with motorized rapid adjustment of test height. Optical Magnifications - 35X, 70X & 140X available. A precision Diamond Indentor (136° Pyramid) is used to make sharp indentations on the specimens / samples. Maximum Test height x Throat : 250 x 150 mm. Load accuracy well within ± 1% of nominal load value. Machine conform to IS :1754. Computerized model is available .Computerized model has built in CCD and suitable advanced software. Hardness will be displayed on computer monitor automatically. Results printout can be taken.

Sleek & handy design, comes in a slim briefcase, for carrying the machine. Mainly used to check hardness in confined spaces, on large & heavy components, permanently installed parts with low test expenditure.   The machine has built in conversion facility for given material to convert 'D' value to Vickers (HV), Rockwell (HRB,HRC), Brinell (HB), UTS scales which can be selected by pressing arrow keys The model operates on two numbers of pencil cells. 30 hardness scales for different probes selectable by feather touch keys. Alpha numeric display - 16 characters x 2 lines LCD with improved electronics, micro controller circuity & user friendly software. Display indicates selected material & scale combination & hardness value. Five numbers of probes D, G, SH, EX & C can be given in different combinations.. Facility to connect dot matrix printer through centronics parallel port. Upto 999 readings can be stored in memory of the machine for printing purpose. Serial interface is possible with RS 232 port at an additional cost. Automatic calibration facility of probe is available through keyboard. Extra (Optional) Accessories such as Standard test blocks, support rings, printer, serial interface, different types of probes are available.

Suitable for Charpy & Izod Impact Tests on various materials. Works on Pendulum principle. Rigid designs of machine frame & other parts assure minimum energy absorption during fracture which results in improved test accuracies. The highly stressed & wearing parts like support blocks & strikers are of special alloy steels duly heat treated. Direct indication of Impact energy absorbed by specimen on large dial for Models : AIT-300-N, AIT-300-EN & on digital panel display for Model : AIT-300-D. Safety guard for the operator is provided. Initial potential energy for Charpy is 300 Joules & for Izod is 170 Joules with a L.C. of 2 Joules (for Analogue models) & resolution of 0.5 Joules (for Digital model). Pendulum drop angle for Charpy is 140° & for Izod is 90° . Gauges, Tongs, Sub-zero bath, Templates, U & V notch milling cutters are available (Optional). Accuracy conform to IS:3766-2003, IS:1598-1977, IS:1757-1999, IS:1499-2003, BS:131-Part- I, II, III, IV & BSEN-10045-1993 (for Charpy).

Manufacturer：LIANGONG Equipment Type：CDW-40 Temperature Impact Test Meter Ⅱ Model: CDW-40 Ⅲ Usages and characteristics:   CDW-40-type low-temperature impact testing meter is the compressor refrigeration of the latest research and development in accordance with cooling requirement of GB229-2007 "metal Charpy notched impact test method". This equipment used refrigeration compressor technology, the use of the principle of heat balance and mixing method of circulation to achieve uniformity of the sample auto-cooling and temperature, to fully meet the temperature indicators of national standard GB229-2007 of the provisions. The equipment is simple, convenient and efficient for working, which is the ideal equipment of specimen cooling and insulation for low-temperature impact testing. At the same time, it can also be used for other low-temperature detection and testing.       Ⅳ Main technical parameters  1 Temperature range: room temperature ~ -40 ℃ (≤ 25 ℃) 2. Temperature accuracy: ± 0.5 ℃ 3. Cooling speed: room temperature ~ 0 ℃ about 1.2 ℃ / min                                              0 ℃ ~ -20 ℃ about 1.0 ℃ / min                                            -20 ℃ ~ -40 ℃ about 0.5 ℃ / min 4. Maximum dimension of the external form: 910 × 510 × 920mm (length × width× height) 5. The effective dimensions of the studio: 275× 160 × 120mm (length × width × height) 6. Quantity of sample can be loaded: > 60 (the impact of sample size: 10 × 10 × 55mm) 7. Digital timer: 1minute ~ 9999 minutes, 1 minute resolution 8. Cooling medium: ethanol or other ice-free liquid 9. Stirring motor: 23W 10. Working power: 220V ~ 240V, 50Hz, 1.8kW 11. Operating environment temperature : 5℃~25 ℃        ⅤEquipment configuration     1. One host 2. One compressor 3. One transducer 4. Three sample baskets    

The most commonly used method for determining harden ability is the end quench test developed by Jominy & Boegehold. In this test a normalized 25 mm diameter & 100 mm length test sample of steel to be evaluated is heated uniformly to its austenitizing temperature. The specimen is then removed from the furnace & placed in the end quench test apparatus & immediately end quenched by a jet of room temperature water. After end quenching, longitudinal flat surfaces are ground on opposite sides of the test piece as per dimensions. This grinding is very important for correct positioning of the sample in the fixture and also for accurate repeatable and reliable test results.Jominy Test Fixture is to be positioned on the main screw of the hardness tester for checking hardness of the test sample. Hardness at equal intervals (1 mm or 1/16”) to be checked and noted. Plot the resulting data on graph paper with hardness value as ordinate (Y axis) and distance from the quenched end as abscissa (X axis). By comparing the curves resulting from end quench tests of different grades of steels, their relative harden ability can be established. Thus the flatter the curve, the greater the harden ability The details of the test are covered in IS : 3848-1981 & ASTM : A 255.

This machine is designed to reveal the cupping qualities of metal sheets& strips and also to test the adhesion, elasticity & porosity of coats of paints or varnish by way of comparison. Testing sample length and width required for this machine will be 70 x 90 mm.   This machine is used to test maximum thickness of sample upto 2 mm. This machine conform to IS : 10175-1982.

This apparatus is useful for determining the harden ability of steels by end quench test. The test consists of heating a standard size specimen to a given temperature for a specific period of time, followed by a water quenching of one end under specified conditions and measuring the hardness at various points from quenched end along the length of test piece. After heating, the test specimen is kept on the specimen support, where it is automatically centered with respect to water jet. The quick action valve starts impinging the water jet on the specimen end instantly. The elaborate arrangement of pump, tank, pipe etc, enables to obtain desired correct water head for the nozzle. The electrical controls and safety devices for pump and motor are provided and the entire apparatus is totally enclosed. Test piece - Total length is 100 ± 0.5 mm & diameter is 25 (+0.5 ; -0.0) mm. Inside diameter of vertical water supply pipe 12.5 ± 0.5 mm. Height of the free water jet (without test piece in position) 65 ± 10 mm. Distance from Tip of nozzle to the bottom of test piece 12.5 ± 0.5 mm. This apparatus conform to IS:3848-1981 & ASTM : A 255.

Hard bearing type horizontal end driven two plane machines with microprocessor based or DSP based measuring panel. Suitable for balancing of different types of rotors like rotor of electrical machines, fly wheels, crankshafts, submersible pump rotors, etc.   Measures & stores the unbalance in gms along with the angle for two selected correction planes on digital display. Additional bed length with or without gap bed arrangment can be provided at extra cost for extra long rotors. Additional center height arrangement is also possible to accommodate biggerdiameter rotors Minimum achievable unbalance upto 0.5 micron shift in c.g. Various Models Suitable for rotors from 0.5 kg to 10,000 kg. Horizontal belt driven hard bearing two plane machines are also supplied for rotors weighing from 0.1 kg upto 3000 kg. Unbalance indication either by stroboscopic method or photo scanning method sensitivity upto 0.5 micron. Computerized / Electronic versions with printer facility & special machines to suit customers requirements can also be supplied. Machines conform to IS:13277-1992.

Suitable for Torsion and Twist tests on various metal rods & flats. Torque measurement by Torque cell & Angle of twist measurement by Rotary encoder. Geared motor is to apply the torque to specimen through gear box.   Display of Torque & Angle of twist on LCD display provided on Data Acquisition System. Torque resolution - 0.01% of machine capacity for entire range. Angle of twist resolution is 0.1 Degree. Accuracy of Torque measurement ± 1% in the range from 4% to 100% of machine capacity. Torque speed & direction - 1.5 rpm Reverse. Provision to conduct test slowly by a handle which facilitates finding Modulus of rigidity “G”. Facility for connecting the DAS Panel to Computer. Optional - Special comprehensive software for torsion test to give Torque Vs Angle of Twist graph & also calculate various parameters like Torsional shear strength, Modulus of Rigidity, etc. Various Models - Maximum Torque Capacity from 100 Nm to 3000 Nm are available.

These machines are designed for measuring hardness of metals and alloys of all kinds, hard or soft, whether round, flat or irregular in shapes. Semi - Automatic, motorized, digital, microprocessor based panel. We can get hardness value in digital version.   Easy to read, large size LCD display. Three modes of operation viz. Motorized automatic mode, Semi automatic mode & Manual mode. Automatic weight selection by thumb wheel. Indenter is guided in linear bearings facilitates to test small diameter jobs. Test height x Throat is 290 x 133 mm. Centronics parallel port for connecting dot matrix printer. Serial Interface (RS-232 Port) is provided for connecting it to Computer. Standard Software CD is provided which consists of Serial Number, Hardness values & Limits. Least count for Rockwell scale is 0.1 HR. For Rockwell cum Brinell Hardness Testing Machine, additional Brinell loads in addition to Rockwell loads & Brinell Microscope of 25X magnification are provided. Machines strictly conform to IS:1586-2000, BSEN-ISO-6508-2, ASTM-E-18 for Rockwell tests and IS:2281-2005, BS -240, ASTM-E-10 for Brinell tests.

This machine is light, compact & simple in design used to test the fatigue strength of materials & to draw S-N diagram, used for research institutes, laboratories, material manufacturers & various industries. Machine is table model, no need of civil foundation. Rotating beam type machine in which load is applied in reversed bending fashion. Standard 8 mm diameter specimen is held in special holders at its ends & loaded such that it experiences a uniform bending moment. The specimen is rotated at 4200 rpm by a motor. A complete cycle of reversed stresses in all fibres of the specimen is produced during each revolution. The bending moment is applied with a lever system and can be easily changed by moving a weight over the lever. Maximum bending moment of 200 kgcm is applied & adjustable from 25 to 200 kgcm. Total number of revolutions at which the specimen fails is recorded by a digital counter. The total number of digits of digital counter is eight. An interlocking system puts off the motor immediately after specimen fails. Accuracy of applied bending moment ± 1%. Optional - Machine with maximum bending moment upto 400 kgcm can also be offered. Machine meets requirements of IS: 5075-1969.

This is an accessory of Brinell hardness tester. It can be connected to computer to get display of impression on computer. The special software is provided with it can calculate the Brinell hardness value automatically. Accuracy strictly conform to IS:2281.

Automatic Data capture, storage & graphic display. Recording, storage & retrieval of results & details. On line display of load & extension. Fully automatic, on screen calculations based on the delivered data. Out put to digital printer of test data, test results & graphs. Auto detection of over load, over travel & specimen break, ondetection of the above conditions, the machine is automaticallyswitched off. Load resolution : 0.01% of machine capacity for entire range. Accurate and Users friendly software & all other facilities mentionedunder Model : TUN.

This machine is designed for Brinell hardness measurement on steel & other ferrous materials & also on non-ferrous materials. This machine is a modified version of AKB-3000 & OPAB-3000, which is provided with an inbuilt optical system (CCD) of 16X.   An Automatic indenter index system is provided which tilts the indenter after the impression and on removal of load. The optics will transfer the image of indentation to CCD. The image is further digitalized & processed by PC for measurement. The diameter of the image can be measured automatically / manually to give Brinell hardness value. Thus this machine gives fast and accurate results with less operator fatigue This machine saves a lot of cycle time, improved accuracy of measurement and gives fast and accurate results with less operator fatigue. This model is mainly useful for production testing in Auto Shops, Foundries, Forge shops and Heat treatment units, etc. Its stability and unique design of a floating fulcrum lever system ensure high accuracy & dependability. Test loads from 500 to 3000 kgf in steps of 250kgf. Machine Test height x Throat is 380 x 200 mm. Fully computerized system for indentation measurement and display. Windows based software system. Accurate measurement of Brinell hardness through matched Optics, CCD Camera, Hardware & Software using advanced image processing technology. Two modes of measurement - Manual & Auto. In Auto mode the image is scanned for measurement & hardness is displayed automatically. Verification facility is provided for clear indication of measured impression by encircling the same. Windowing facility is provided which encircles the blurt images for better accuracies. Macro & Micro adjustment facilities are provided in manual mode for fast & accurate encircling of the image to be measured. Batch testing facility is provided. Statistical Analysis report can be generated. Calibration mode is provided with password protection. Special test fixtures for odd jobs / production testing can be supplied (Optional). Accuracy conform to IS:2281-2005 & BS:240.

Manufacturer：LIANGONG Equipment Type：CMT-50 Ⅰ Name and type of equipment CMT-50 Microcomputer control electronic universal testing machine.   Ⅱ Application of equipment This machine is applied in analysis and research of statics property testing of tensile, compression, bending, cutting, holding and other items of metal and nonmetal material (including composite material). It can achieve ReH, ReL, Rp0.2, Fm, Rt0.5 , Rt0.6, Rt0.65, Rt0.7、Rm, E and other testing parameters automatically and can also do test and provide data according to GB, ISO, DIN, ASTM, JIS and other international standards. Ⅲ Main technical parameters (1) Measurement parameters 1. Maximum test force: 50KN 2. Accuracy class: 0.5 3. Measuring range of test force: 0.4%～100%FS （full scale） 4. Indicating error of test force: within ±0.5% of indicating value 5. Resolution of test force: ±1/200000 of maximum test force, up to ±1/300000, grade unchanged and resolution unchanged in whole process 6. Deformation measuring range: 0.2%～100%FS 7. Deformation indicating error: within ±0.5% of indicating value 8. Resolution of deformation: 1/200000 of maximum deformation, up to 1/300000 9. Displacement indicating error: within ±0.5% of indicating value 10. Resolution of displacement: 0.025μm （2）Control Parameters 1. Tuning range of force control rate: 0.005～5%FS/s 2. Control accuracy of force control rate:  When rate is less than 0.05%FS/s, within ±2% of setting value  When rate is no less than 0.05%FS/s, within ±0.5% of setting value 3. Tuning range of resolution rate: 0.005～5%FS/s 4. Control accuracy of resolution rate:  When rate is less than 0.05%FS/s, within ±2% of setting value  When rate is no less than 0.05%FS/s, within ±0.5% of setting value 5. Tuning range of replacement rate: 0.001～200mm/min 6. Control accuracy of movement rate:  When rate is less than 0.5mm/min, within ±1% of setting value  When rate is no less than 0.5mm/min, within ±0.2% of setting value (3) Other parameters 1. Effective testing width: 400mm 2. Effective distance of tensile: 700mm 3. Size of host: 760×460×1900mm 4. Electrical source power: 1kW, 220V, 50Hz 5. Weight of host: about 350Kg ⅣPerformance and Characteristics (1) Technical structure of mechanism: (2) Control and measure system ※ Technical advantage instruction of measure and control system DSC-10 full digital closed loop control system adopts up to date technical achievement in electronic technology area and ensure consistency of systematic sample and high-speed, effective control function and advancement of system. We use mostly hardware module in system design to ensure product’s steadiness and reliability. 1. DSC-10 full digital closed loop control system 2. High-efficiency and professional control platform 3. Parallel sampling mode on the basis of hardware 4. Hardware filtration function of position pulse signal 5. Rock-bottom realization of control function

This machine is designed for Brinell hardness measurement on steel & other ferrous materials & also on non-ferrous materials like Brass, Bronze, Aluminium, etc. The material can be cast, forged or rolled & the shape can be flat, round or irregular.   This machine is specially used in production testing. Its stability& unique design of a floating fulcrum lever system ensures high accuracy & dependability. The load application system is of dead weight type combined with mechanical lever system. The supporting hydraulic system is for initial lifting of load before each test & damping the load application system for smooth application of load. Test loads from 500 to 3000 kgf in steps of 250 kgf. Test loads from 500 to 3000 kgf in steps of 250 kgf. Test height x Throat is 380 x 200 mm. Indentation measurement by Brinell Microscope of 25X Magnification. Special Test fixtures for odd jobs / production testing can be supplied (Optional). Computerized Brinell impression measurement system is available (Optional). Manual / Optical / Computerised type Brinell Hardness testing machines are also available. Accuracy conform to IS:2281-2005 & BS:240.

Horizontal, hard bearing type two plane dynamic balancing machine, with overslung type belt drive arrangement. Most suitable for the rotors, where end drive cannot be used or where variety of rotors is more and number of adopters required are more for end drive machine. Typical application are balancing of shells for ordnance factories, pipes, printing machine rolls, etc. Machine are available from 10 kg. to 3000 kg. capacity in various models. Measuring Control panel is microprocessor based or DSP based, indicating amount of unbalance in gms. along with degree, by using photo scanning arrangement for generating reference signal. Speed range is from 300 rpm to 3000 rpm. Balancing accuracies achievable up to 0.5 microns for maximum rotor weight Machines are more suitable for repairy workshops, where variety of rotors to be balanced is more. Machines conform to IS:13277-1992.

Auto Turret Vickers Hardness Tester（HV-10AP/ HV-30AP/ HV-50AP） The models HV-10AP/ HV-30AP/ HV-50AP are special designed for improving the working efficiency of our customers as its automatically design.   After adjusting the focal length, the objective lens and indenter can be switched automatically. And the testing force can load, dwell and unload automatically. Then the objective lens will automatically return to the initial focus state, and the length of indentation can be measured directly. MainFeatures: 1. The independent research and development of lifting system and positioning system, ensured the accuracy and repeatedly of the testing process. 2. Coating adopted car paint technology with white color. Looking more decent, and with the advantage of fullness, high gloss and more scratch resistance. Used for many years looking still bright as new. 3. The optical system designed by senior optical engineer (who worked in the Shanghai Optics And Fine Mechanics Institute, Chinese Academy of Science) can meet the definition of hardness testing requirements of our customers. 4. Testing method, testing power and duration time can be displayed directly on the LCD screen. The hardness value can be displayed directly by entering the indentation diagonal length and avoid the complication of the look-up table. 5. According to different visual habits of the operators,the strength of the light source can be adjusted. To avoid the visual fatigue for long time operation. 6. The testing data able to be printed directly by the built-in printer. 7. Can be connected with computer, used the image analysis software to analyzing the physical and chemical properties of the material. Main purpose and the scope of the application: 1. Ferrous metals, non-ferrous metals, castings and alloy materials. 2. Structure of metal, metal surface processing layer, plating layer, hardening layer ( oxidation, coating and a variety of infiltration layer ) 3. Heat treatment and carbonation specimen, quenching and mini parts which with miscellaneous point. 4. Applicable to the Knoop hardness test of glass, ceramic, agate, precious stones and other non-metallic hard but brittle materials.

ItemNo.: HV-1000ZDT The new type Micro Hardness Testers (which were develop and improved by our institution) integrated with optics, mechanics and electricity. It is famous as its fashion and decent design, high testing precision, stable functions and simple operation.   Main Function and Features:Special designed for improving the working efficiency of our customers as itsautomatically design. After adjusting the focal length, the objective lens and indenter can be switched automatically. And the testing force can load, dwell and unload automatically. Then the objective lens will automatically return to the initial focus state, and the length of indentation can be measured directly. 2. Coating adopted car paint technology with white color. Looking more decent, and with the advantage of fullness, high gloss and more scratch resistance. Used for many years looking still bright as new. 3. The independent research and development of lifting system and positioning system, ensured the accuracy and repeatedly of the testing process. 4. The optical system designed by senior optical engineer (who worked in the Shanghai Optics And Fine Mechanics Institute, Chinese Academy of Science) not only meet the definition of hardness testing requirements, but also can observe the metallographic structure of the material. 5. With Vickers hardness and Knoop hardness testing capabilities, and testing force can be extended to 2KG. 6. Testing method, testing power and duration time can be displayed directly on theLCD screen. 7. The hardness value can be displayed directly by entering the indentation diagonal length and avoid the complication of the look-up table. 8. According to different visual habits of the operators, the strength of the light source can be adjusted. To avoid the visual fatigue for long time operation. 9. The testing data able to be printed directly by thebuilt-in printer. 10. Reserved image channel，can be connected with computer, used the image analysis software to analyzing the physical and chemical properties of the material. Main purpose and the scope of the application: 1. Testing the hardness of metallographic structure, from the most soft material to the most hard material. 2. Carburizing, nitriding, hardened layer, surface coating, steel, nonferrous metals. 3. The hardness of the glass, ceramic materials.

Variety of tests like Tension, Compression, Transverse, etc are conducted. Continuous roll autographic “Load Vs Elongation” recorder. Suitable for testing a wide range of metallic materials.   Extra (Optional) Accessories such as - Extensometer, Pace (load) rate control, Load-Stabilizer, Attachment for - Brinell test, Tensile test for shouldered & threaded, Single & Double shear test, Bolts-Nuts & Washer test, Rope test, Flat Belt test, Bend-Rebend test, 180° Bend test, Pull-Out test, Chain testing, etc are available. Various Models - Capacities from 100 kN to 2000 kN are available. Loading accuracy well within ± 1%, conform to IS:1828 / BS:1610.