GATHA Products and Services LLP. Bibwewadi, Pune, Maharashtra

Vickers Hardness Testers from 1 kg to 120 Kg Load . Standard Optical type, Built in Touch Screen type and Computerised version. Vickers Cum Brinell Model is also available.   This machine conforms to IS:1754-1986 for Vickers and IS: 2281-1983, BS: 240 for Brinell Test.   Vickers Hardness Tester(Vickers cum Brinell Model is also available) Testing range is very wide, from soft metal such as lead up to the hardest, like hardened steel Thin sheet metal is perfectly tested because the load applied is very small Same hardness number is obtained on the same specimen, regardless of the load applied. Built in projection screen to get accurate result   Vickers as well as Vickers cum Brinell Hardness Testers are suitable for Vickers and Brinell hardness of steel and other metals. These machined are designed and manufactured for very high accuracy, reliability and ease of operation. The selection of load is effected with the push button control system. The measurement of diagonal / diameter of indentation is done with the help of built-in optical system with graduated readout with micrometer. After taking indentation on the work piece, the objective lens is automatically swivelled into position and image of indentation appears on the focusing screen fitted in front of the machine. A push button is provided for starting the loading cycle and unloading is accomplished though hand lever.   This machine conforms to IS:1754-1986 for Vickers and IS: 2281-1983, BS: 240 for Brinell Test.

We have wide range of Universal Testing Machines from 1 Kn to 2000 Kn Capacity for various applications. Every machine is calibrated in accordance with procedure laid down in BS 1610-1964 and 1828-1991. Computerized Universal Testing Machine comply with grade A of BS 1610-1964 and grade 1 of IS 1828- 1991. An accuracy of +/- 1% guaranteed from 2% to 100% of capacity of the machine.

DIGITAL TRIAXIAL SHEAR TEST APPARATUS- FOR 38 MM DIA SPECIMEN - FOR CD UU CU TEST  Compliance Standards : IS : 2720 (Part XII)   Set up consist of following parts and accessories: Load Frame motorized capacity : 50 KN (5000 kgf) giving different rates of strain Load cell : 02 KN (200 kgf) capacity, Resolution (1 kgf), Strain Gauge in full bridge configuration. Pore Pressure transducer : 10 bars (10kg / cm2) With 0.01 kg/cm2 ACCURACY or 20 bars (optional) LVDT (displacement sensor) : Range ± 25 mm with resolution of 10 microns (0.001 mm).

Submersible Agitator is a key equipment for Quenchant Tank Agitation in Heat Treatment process. The Airless agitation with 0.5-2.0 m/sec. velocity resulting in 8000 Degree C/min hot job cooling rate achieves the required properties.

Rockwell, Rockwell cum Brinell, Rockwell cum Rockwell Superficial   We have Rockwell , Rockwell Cum Rockwell superficial and  Rockwell Cum Brinell Hardness Teseter in Analogue and digital version.    These models strictly conforms to IS: 1586-2000, BS: 891 part 1 & 2 for Rockwell & Rockwell superficial test. IS: 2281-1983, ASTM-E-10 for Brinell Test.   Hardness Testers are designed and developed after years of experience in this field. All the models are manufactured under strict quality control at all manufacturing stages.   These models are suitable for testing hardness of metals and alloys of all kinds, hard or soft, whether flat or round etc. or of irregular shape. These testers are simple in design and easy to operate, still yet quite sensitive and accurate.   These models strictly conforms to IS: 1586-2000, BS: 891 part 1 & 2 for Rockwell & Rockwell superficial test. IS: 2281-1983, ASTM-E-10 for brinell test.   Rockwell System Automatic weight selection with automatic zero setting dial gauge. Automatic weight selection with automatic zero setting dial gauge with more testing height and throat   Rockwell cum Brinell Combined System Automatic weight selection with automatic zero setting dial gauge. Arrangement similar to RS with two additional weights of 185.5 kgf and 250 kgf for brinell tests. On this machinesmall pin having Dia 2 mm can be tested as plunger is guided with a set of six bearings.   Rockwell cum Rockwell Superficial Combined This hardness tester is similar above machine in construction, and with automatic weight selection. This is useful for carrying Rockwell and Rockwell Superficial tests. The Rockwell Superficial method is useful for checking hardness of very thin sheets and surface hardness.   Motorized Hardness Tester models are also available in the above models. Application and removal of major load is motorized. Motorized models have semi automatic operations for products testing. Drive motor-single phase, 230-V, 50 cycles AC.

Color : Multicolor

Frequency : 50Hz, 60Hz

Description: Double disc variable speed, backed up by high torque, noiseless D.C. motors of 1/2 HP, with D.C drives, driving discs independently. Disc dia. - 200 mm. Continuous stepless variable speed up to 1400 r.p.m., with digital R.P.M. indicators. Complete Metallography Polishing set up. Double disc variable speed, backed up by high torque, noiseless D.C. motors of 1/2 HP, with D.C drives, driving discs independently. Continuous stepless variable speed up to 1400 r.p.m., with digital R.P.M. indicators. Anticorrosive- Thick - F.R.P. TOP Water faucet, built-in sink arrangement. Specimen storage drawer, paper (independent) storage cupboard. Etching reagent, Consumable storage front racks. Heavy duty warm air drier for immediate specimen drying, mounted on front. Quick paper change clamping ring.

Oscillating Disc type Rheometer is an efficient, easy-to-use, and reliable testing equipment. We have designed the instrument in accordance with ASTM and ISO 3417. Our machine very effectively and precisely process the characteristics of vulcanized rubber compounds.   The Rheometer describes precisely and quickly curing and processing characteristics of vulcanizable rubber compounds. Computer Controlled Automated Testing, Repeatability-Continuous repeated testing, Window environment easy to operate, huge Capacity of data storage and retrieval, Color Printouts, Multiple color coded graphs for easy separation of batches, Flexible testing timings, Statically Computation of data, Fast Temperature recovery, Automatic Computation of results at the end of test sequence. Sample Volume Approx. 8 CM^3, Oscillating Disc Frequency 100Cycles/Min (1.66Hz), Oscillating Amplitude +/- 1 Deg, 3 Deg, 5 Deg, and Microprocessor Temp. Controller Calibrated range 100~200 Deg C. Directly shaft mounted inline with oscillating disk. Directly online display on monitor, Air Pressure 60 PST, 4.2Kg/Cm2

Preparation of standard prisms with Automatic/Manual mixing procedure   Special Features: Automatic / Manual Mortar Mixer 5 liter nominal capacity Microprocessor control Choice of automatic mixing cycles Sand Dispenser Water burette

It is an instrument consisting of a motor driven disk within a die cavity formed by two dies maintained at specified conditions of temperature and die closure force. It measures the effect of temperature and time on viscosity of rubber or compound. Mooney Measuring range 0 to 200MU, Pre Heat Time 0-60Sec, Rotor size large and small, Rotor speed 2.0 +/- 0.2 rpm, Synchronous geared motor, Temperature PT 100 Platinum resistors Microprocessor controlled. Calibrated rage 5 Deg to 200 Deg, Independent upper and lower platen control, Temp. Control Accuracy +/-0.5 C PID Temp Control, Torque transducer reaction torque sensor, Computer Controlled testing, Directly on line display on VGA monitor. Req. Air Pressure 60PSI Minimum operating pressure controlled by external regulator with gauge.

Micro vickers hardness tester is designed to cater heavy duty and research work with all the necessary automation for loading and measurements. Hardness conversion is also possible with our micro hardness tester. With the computerized attachment, one can convert manual hardness to computerized one, which enables higher accuracy and operator ease. It is easy to get the micro hardness value by just clicking two diagonals of indentation image on the computer screen. The computer attached to our micro hardness tester helps to store and print the readings, images and graphs.

We have Micro Hardness Tester from 1 Gram to 1/3 Kgs Load. In Manual, Digital , Semi auto, and Computerised version.    Description: Micro Vickers Hardness Tester designed to cater heavy duty and research work with all the necessary automation for loading and measurements. Loading Mechanism Motorized loading and releasing. Indexing- Rotating turret for indenter and objective lens. Objective For scanning 10 x, Plan achromatic 0.25 NA. For measurement 40 x, Plan achromatic 0.4 NA. Diagonal Reading - Manual Filler micrometer eyepiece (10 X) with 0.5 Micron accuracy OR Digital measurement with the help of Digital Filler micrometer eyepiece (10 X) with 0.025 Micron accuracy.   Computerised Attachment: With this attachment one can convert manual hardness to computerized one. This has many advantages like higher accuracy as of bigger indentation, operator ease as one can get the Microhardness value by just clicking two diagonals of indentation image on the screens. Further one can get plot of effective case depth graph. All the readings with image and graphs can be stored, printed. This model MVH-II consists of 1/2" CCD Camera (High resolution monochrome) with interface adaptor Image grabber hardware. Dedicated image processing Software for Vickers Hardness number, effective case depth hardness graph. Hardness Conversion facility.

Metallurgical Microscopes in Various Permutation Combinations are available with / Without Camera Attachment. With Image Transfer Facility to PC. 

Various Types of Cut Off Wheels , Diamond Wafering Blade , Various Fixtures, Hot Mounting Powder , Cold Mounting set, Diamond pastes , Clips, Abrasive papers in various grit  plain or PSA Back. Etc. 

Details: Alphanumeric 4 line display indicating: Load, displacement, status, peak value of flow and Load. Digital display to measure the load up to 10000 Kg /100 KN, Least Count 0.1 kg/0.001KN.

Manhole Testing Machines in various designs are available from 1000Kn Capacity.

DIGITAL- IS:2720 (PART XVI) 

Capacity : 5 Tons

On site non destructive inspection kit of mettalography, used where the conventional techniques of specimen preparation can not be applied. The kit of practicing mettalographers for any critical site applications considering the user friendliness, weight, result and it’s repeatability. Excellent result can be achieved by methodical practice and employing good consumables with little practice.   Application areas Insitu technology has various applications like for the study of micro structure of localized corrosion, high temperature oxidation & hot corrosion, large/ bulky jobs on their critical areas, weldment, cracks on the structures, pipes, pressure vessels, dies, pressure parts, and so many for the purpose for their residual life / structural integrity assessments / failure investigations. It also has applications like in life in life extension strategies, original design modification, maintenance, accelerated carrion study and safety.   Application Industries Power generation, Fertilizer, petrochemical, aerospace, defense, automobile, steel, oil and gas, off shore structures and chemical processing industries, research and education.   Portable Grinder / Polisher – PORTGRINDER Heavy duty grinder with right angle attachment, Variable speed, flexible shaft, portable high torque grinder for heavy and light duty site application. One can attach (32mm), various coarse and fine grinding replaceable self adhesive (PSA Backed) papers and lapping cloths disc for surface preparation. Grinder has right angle grinding attachment.   Technical data Motor: 0.85 HP Main supply: 230V, AC 50Hz, single phase Speed: step –less variation up to 10000rpm Supplied with rubber discs, various grade emery papers, clothes, diamond pastes.   Light weight exceedingly small portable grinder Extremely useful when carrying weight and power supply connection is problem. The grinder delivers enough torque for site application. It has an accessory of drilling. This is useful for drilling a hole in a big job of stainless steel for anodic connection.   Technical data Speed – 10000-30000 rpm Motor – 125 watts, both motor & regulation electronics built in the handle of grinder. Weight – 450gms(for easy handling on various applicationss) Accessory – flexible shaft Supply – battery operated.   Portable auto electro polisher Power source Portable electro polisher finds an application of polishing especially stainless steel & caters other application. Technical data Supply unit – 220 V. single phase A.C Current rating – up to 2.5 Amp. Voltage rating – up to 60 volts Modes – polishing / etching (external) Polishing timer – 0 to 99 sec   Electrolytic polishing cell with pen type polishing probe, associated with electrolyte reticulation system with pump Technical data Circulation pump – 25 watts, 230 A.C. single phase Electrolyte reservoir – 0.5 ltr. Probe – recalculating pen type Swabbing type of probe for general polishing / etching application with 200ml breaker for electrolyte storage.   Portable Microscope Incident light microscope, to offer magnification up to 800X. with unique feature of stage scanning movement battery backup system etc.   Technical data Total magnification – 100x to 800x Objective – MF10x, MF20x, MF40x (achromatic objective) replaceable Eyepieces – WF10x, 20x Stage movement – X-Y direction with knobs for surface scanning (unique optional feature) Light source – 6V-20W halogen bulb Power supply – adaptor of 230V, A.C Battery – back up with battery charge   Magnetic stand for microscope Magnetic base stand help positioning the microscope in any position for detailed micro-observation and for photography.   Replica Kit Transparent Replica Kit – Replica roll (Transparent), glass slides, and replica liquid (This replication techniques is operator skill dependent.)   Portable image analyzer for in-situ applications Now one can grab and analyze the image on site with the help of powerful image analyzer. This can save the time and efforts of replica preparation, help analyzing the image on the spot, generation the vast data base, transmitting the image from the site by email etc. the software is loaded on laptop.   Camera High resolution camera with built in image grabbing facility. Very low weight, small size camera that is directly attached to any lap-top computer through USB port. Attached to the microscope by “C” mount adaptor. Camera has own software for image correction, HIS, contrast, balanced bundled with image database maintenance software.   Specification Image device – 1 / 2.5” Resolution - 8.0 mega pixels (3264 x 2448) Pixel size – 1.758 x 1.75 microns Color filter – RGB 24 Bit Exposure time – 0.1 milli seconds to 12 seconds White balance – automatic, manual (camera model and specification are subject to availability of recent mode)   Software modules Grain size estimation Grain size measurement with grain area cleaning and boundary reconstruction facility and auto intercept marking   Phase analysis Percentage phase analysis or area fraction   Nodularity analysis Nodule count, % nodularity analysis, distribution, nodule classification.   Linear Measurement Plating / coating / decarburization / banding measurement and degree of orientation / decard / interlammellar dist., distribution, dendritic arm spacing, defects etc.   Other modules Serpentine crack length measurement Graphite flake analysis for size class analysis Movable micron marker Customized developments can be undertaken, under special contract.   Data base maintenance, reports Image data base maintenance / management software with facility of comparison of images and image gallery, report generation.

Impact Testing Machines As per BS, ASTM and ISO Standard for Metal, Nonmetal and plastics range 2.71 Joule to 500 Joule capacity.   Features: For charpy tests on various materials. Strictly conforms to ASTM-E-23-2007 specifications. Works on pendulum principle. Difference between height of drop of pendulum before rupture and height of rise after rupture of specimen is directly proportional to impact energy absorbed by specimen and is indicated by a pointer on a large dial for Model-ASTM & on Digital Display for Model- ASTM (D). Single stand design which facilitates fast and easy positioning and centering of specimen which is a basic requirement of sub-zero testing. Unique spring loaded braking system for smooth and jerk free braking. NIST approval of machine with samples from NIST-USA. Can be arranged. Digital version of ASTM model will be available soon.   OPTIONAL ACCESSORIES: Self centering tong for Charpy test specimen (useful particularl for carrying out tests at sub zero temperature). Sub zero temperature bath with digital temperature indicator. Go: No-Go gauges for conforming the following parameters of specimen-within the limits specified by the standard. Center line of notch from both ends. Angle of V notch. Depth below standard V notch Cross section of 10x10 mm specimen. Milling cutter for V notch. Charpy & Izod notch (V&U) broaching machines. Lateral expansion gauge as per ASTM-E-23. Standard impact specimen for verifivcation of machine from NIST-USA (we also undertake calibration of the machine as per ASTM-E-23 including approval from NIST-USA).

Objective accurate and reliable analysis., Online Analysis (previously saved image can also be analyses., Calibration through reflecting stage micrometer, Multiple frames per sample , 16 Detectable planes (phases) with user definable colors, Palette and histogram based threshold levels, Easy threshold/grey level detection in any defined region, Customized and user definable report templates, Flexible, Powerful and ease use.   Image Analysis Object Definition & operation Area and linear Measurement-Length, Dept, Shape factor, Aspect ratio, Statistical Operation: Variance , Mean & Median, Standard Deviation parameters for selected objects. Object management – Grouping search- Individual, Group wise. Chord Sizing –Retain only those above certain specified Value.   Hardware High Resolution Metallurgical Microscope, High Resolution Color CCD Compact camera, High Resolution frame grabber card.

Application : Image Analysis

As per ASTM, ISO, Din is and another equivalent standard.  System Status Touch Screen - Fully Computerised Station : as per Requirements. 

Details: Heat Treatment Furnaces for Various application  Annealing , Normalising Hardening , Solution Treatment Heating , Forge Heating , Tempering Aluminum Solutionising , Stress Relieving , Ductile Iron Full Annealing   Strong rigid construction , Heat resistant grade CI castings at door and frame, bogie and furnace interface eliminates warpage. Railway rails for load bearing under temperature. Double sealing minimizing heat losses Thermal survey as per API 6A Standard.  All measuring instruments calibrated to national traceability With as per the Required AUTOMATION.    Applications Annealing Normalising Hardening Solution Treatment Heating Forge Heating Tempering Aluminum Solutionising Stress Relieving Ductile Iron Full Annealing.   Auto cycle control Ramp, Soak, Cool ..... 8 Steps Profile 10, 20 Profile Memory Multi Input Multi Output (MIMO) PID Controlling Action. Micro processor based programable controller. one burner, one thermocouple forms one pair as zone, thus multi zone control Digital display for time temprature graph online with USB pendrive for data storage, Wired lan PC connectivity for real time graph printing   Firing High Velocity Short Flame Burner Direct On/Off pulse firing effect. Smokeless perfect combustion The furnaces are calibrated for uniformity as per API 6A Standard ( The Temperature Difference Between Highest & Lowest Points at Stabilised Conditions should not be more than 13ºC.)   Mechanization Trolley - movement by geared motor with brake. Door - movement by geared motor with brake, counter weighed, Door Lock Unlock - innovative,Pneumatically operated instant latching unlatching for perfect sealing   Construction Strong rigid construction Heat resistant grade CI castings at door and frame, bogie and furnace interface eliminates warpage. Railway rails for load bearing under temperature. Double sealing minimising heat losses.   Insulation High temperature high density ceramic fibre modular lining. Self supporting U-fold door lining.   Recuperator All fuel fired furnaces are equiped with recuperator to recover the heat from flue gases by preheating combustion air. By thumb rule a rise of 150 degree C in combustion air 7.5% heat is recovered.   PLC control Large furnaces handle high value materials, it is essential to install PLC for opration to avoid manual errors. PLC checks each & every operation prior to loading of materials called booting to ensure air/gas/power etc. are within the specifications & all the sensors are in working condition PLC monitors each & every operation during auto cycle for supply conditions, flue temperatures burner operations any deviation is automatically notified audio visualy & through SCADA PLC keeps event history for the record   Control Panel Aesthetically powder coated control panel. Electrical switch gears for drives, burners. Status indication and control. Burner sequence controller and flame failure device. Programmable startup, burner, temperature controlling system.   Calibrations Thermal survey as per API 6A Standard. All measuring instruments calibrated to national traceability

To determine the Environmental Stress Cracking Resistance as per ASTM D1693 6 Station , Circulation Centrifugal Stirring Method with “H” Class insulation motor. Sample Cutting Press (Optional)  up to 5 Ton  

Electronic Direct Shear Apparatus motorized with single speed with software. As per IS :2720 (PART 13) 1986 / IS : 11229 - 1985, Supplied without PC/Laptop or Printer.