To determine the fineness of cements, pozzolanas and other powdery materials, various international specifications recommend the use of "specific area" method. In the instrument described below, air permeability method is used to determine the specific surface as total surface area in cm2/g of material. Air Permeability Apparatus (Blaine Type) is with ISI Certification Mark, IS:5516

The apparatus consists of an epicyclic type stainless steel paddle imparting both planetary and revolving motion, by means of gears. It has two speeds of 140 5 r.p.m. and 285 10 r.p.m. with planetary motions of approximately 62 r.p.m. 5 r.p.m. and 125 r.p.m. /-10 r.p.m. respectively. The stand of the mixer has arrangement to raise or lower the bowl. Complete with stainless steel bowl of about six liters capacity. Suitable for operation on 230 volts, 50 cycles, single phase, A.C.supply

The tile sample is pressed under a specified load against a grinding path, strewen evenly with an abrasive powder, revolving at the rate of 30 ± 1 rpm. At the end of 100 revolutions of the disc, the second parallel side of the tile is subjected to wear an equal number of revolutions of the disc. The wear of the tile is measured using AIM48101 thickness measuring device (which is supplied at extra cost). The Abrasion Testing Machine consists of a replaceable grinding path, fitted on to a disc rotating about its vertical axis. The rotating disc and the grinding path are enclosed by a circular tray. A bracket holds the specimen. The loading is by a counterbalanced lever. A funnel is provided to facilitate charging the grinding path with abrasive powder. Supplied complete with automatic pre-set revolution counter and one 7.5 kg weight, but without abrasive powder and thickness measuring device.

The testing machine is used for workability as well as consistency of fresh concrete. A slump cone and a graduated rod supplied with the instrument helps the operator to find out slump values and Vibration Table with container and acrylic disc is used to find out workability of concrete expressed in Vee Bee degrees, which is defined as the time in seconds to complete required vibrating at which the fresh concrete flows out sufficiently to come in contract of the entire face of acrylic disc.

The equipment consists of : A Vibrating Table size 380 mm long and 260 mm wide resting upon elastic support at a height of about 305 mm above the floor, complete with star /slop Switch, Chord and Plug. A holder is fixed to the base into which a swivel arm is telescoped with funnel and guide sleeve. The swivel arm is also detachable form the Vibrating Table. A graduated rod is fixed on a swivel arm and at its end a plastic disc is screwed. The divisions of scale on the rod record the slump of the concrete in millimeters. Supplied complete with a sheet metal container with lifting handles which can easily be fixed to the Vibrating Table. A slump cone open at both ends with lifting handles and a Tamping rod of size 16 mm diameter and 600 mm long rounded at one end.

Ideal for separating unwanted material from the desired elements

Various diameter

Sizes: 76, 100, 150, 200, 250, 300, 350, 400 mm, and smaller microns...

Features:

Sturdy design

Easy to use

Excellent quality

Aggregate crushing value test on coarse aggregates gives a relative measure of the resistance of an aggregate crushing under gradually applied compressive load. Crushing value of aggregates indicates its strength. Lower crushing value is recommended for roads and pavements as it indicates a lower crushed fraction under load and would give a longer service life and a more economical performance.

The aggregates used in roads and pavement construction must be strong enough to withstand crushing under roller and traffic.

Mixer blade has low speed of 140/5 rpm and medium speed of 285/10 rpm,while it also has a planetary

movement of 62/5 rpm in low rangeand planetary movement of 125/10rpm in medium range.

Stainless steel bowl fitted with handle,fitted with lid made of non-absorbingmaterial and not attacked by cement,masonry cement, cement pozzolans

mixture or lime pozzolans mixture.

The scraper consists of semi rigidrubber blade attached to a handleabout 150 mm long. The blade about
75 mm long, 50 mm wide and taperedto a thin edge.
Suitable for operation on 230 Volts,single phase

Made from a brass spring tensioned split cylinder having internal diameter of 30 by 30 mm high, with two pointers 150 mm long. Chromed finishing. 

Used to determine the cement expansion (soundness) either in cold or boiling water.

The apparatus consist of a small split cylinder of spring brass or other non-corrodible metal of 0.5 mm thickness forming a mould 30 mm internal diameter and 30 mm high. On either side of the split, two indicators are brazed suitably with pointed ends made of 2 mm diameter brass wire in such a way that the distance of these ends to the centre of the cylinder is 165 mm. The split cylinder will be kept between two glass plates.

With sillimanite muffle with smooth internal surface, imported KANTHAL A-1 heating elements are provided all around the heating chamber backed by ceramic fiber insulation.  A safety protection fuse is to be provided. A simple flap type of door with a spy hole for viewing the Chamber.
Control system: Consists of an energy regulator, digital temperature controller, chromel / alumel thermocouple, Indicating lamps, etc. which will be mounted on the top of the furnace.
Supplied complete with 2 meters of 3 core wire with 3 pin plug for operation on 230 volts single phase 50 c/s AC mains.
Temperature range: Maximum temperature upto 1000°C. and recommended regular working  Temperature not to exceed 930°C
 

Digital COD Digesters apparatus  is a solid block heated unit with provision for 15 samples at a time in 40mm dia Reaction Vessel. All the samples are heated at 150 deg. C within +-1% accuracy with utmost uniformity of temperature.

Specifications:
 

• Glassware: 15 Reaction Vessels & Air Condensers.
• Temperature: 150°C ± 1%
• Capacity: 15 samples at a time.
• Sample Size: 20 ml
• Range: 0 to 500 ppm without dilution. Further samples can be analysed using appropriate dilution.
• Timer: 2 hours timer with Buzzer
• Overall Dimensions: 475 x 295 x 200mm
• Power Requirement: 230V 1000W

Laboratory Cement Autoclave With Stainless Steel Chamber is suitable for conducting accelerated soundness test on cement or the autoclave expansion test requiring constant steam pressure with the correspondent constant pressure. It is consists of a stainless steel cylinder with a welded heat insulated over, mounted on a sturdy supporting frame, enclosed in a heat insulated metal housing, attractively finished. The attached control unit encloses sensitive pressure regulator and pressure gauge, power switches and pilot lights for controlling the electric heating units inside Chamber Dimension-15 cm diameter x 40.5 cm height suitable for operation on 230 v, 50 Hz, Single phase, A.C. supply. Supplied complete with test bar holder Special rack to hold specimens above the water level in the autoclave and in a vertical position to expose them in the same manner

SPECIFICATION:

• Temperature range 0°C to 60°C
• Unique design of thermal barrier for better energy efficiency
• Machine filled PUF insulation to eliminate void pockets
• Powerful fan motor for forced air circulation to maintain uniform conditions inside chamber
• Heating by long life SS tubular heaters
• Chamber calibration port on side
• Adjustable trays
• Hermetically sealed Compressor with CFC free refrigerant
• High temperature safety cut off & alarms for high / low set parameters
• Sensor failure alarm
• Electrical circuit breaker
• Time delay for compressor switch on
• Overload cut off relay for compressor
• Rounded inner chamber for easy cleaning
• Attractive door profile

The Direct Shear test is carried out with an apparatus consisting of a square divided into two halves. The specimen, contained in the box, is subjected to a constant normal load while an increasing horizontal force is applied to one of the sections of the shear box. This force causes a shear failure along the junction between the box sections. The shear force and the normal load are measured directly. The rate of strain is adjusted by the speed of the horizontal force applied. The loading unit has V-strips on which the shear box housing rests.

Suitable for specimens of size 60x60x25mm.

The pre-calibrated load yoke helps counter balance the loading system. The load yoke with direct and through lever system for applying normal load upto 3 kg/cm2 capacity, fixtures for proving ring, brackets for holding consolidation and strain dial gauges are provided. The lead screw connected to the shear box housing helps application of shear stress.
Features:

Great capacity
Low power consumption
Precisely engineered

Determination of soil shear strength is essential for designing the foundation of structures, soil and soil retaining structures, soil slopes, etc., Shear strength of soil depends on various factors and insitu soil conditions. Therefore, when laboratory tests in soil are performed to evaluate shear strength of soil, the insitu soil conditions and other factors should be simulated for obtaining meaningful results.

For example, the Unconsolidated Undrained test on soil will yield the undrained strength, which can be used for finding the immediate stability of an excavation,
whereas a consolidated undrained test with measurement of pore pressure can be used to evaluate the effective strength parameters of soil for designing the long term stability of an earth fill dam. It is well known that the engineering behaviour of soil depends on the effective stress
and not the total stress.

The effective stress can be calculated by measuring the total stress and substracting the pore water pressure from it.
To cater to the needs of shear strength determination of soil we have various range of equipments

Carries upto 7 sieves of 200mm or 300m, 450mm diameter. The shaker is driven by a ¼H.P. Motor through a reduction gear immersed in oil. The sieve table does not rotate but is inclined from the vertical axis and the direction on inclination charges progressively in clockwise direction. If the stop pin below the table is removed, the shaker can have a rotary motion. In addition to this gyratory motion of the table, there is an upward and downward movement ensuring that each square cm of the sieve is utilized. A pair of rods and a holder are supplied. The holder can be fixed on the top of the upper most sieve, and thus the sieve set in firmly held. Suitable for operation form 230 V, 50 Hz Single Phase A.C. Supply.

Torsion Testing Machine is designed for conducting torsion and twist on various metal wires, tubes, sheet materials torque measurement is by pendulum dyanometer system.
Torque ranges can be adjusted by auto torque selector.
Torque can be applied to specimen by geared motor through gear box.
Autographic recorder gives the relation between torque and angle of twist.
The accuracy of torque indication is ±1of the true torque.

Servo models.

• Touch Screen Models (Digital, Micro Controller & Automatic)
• Rugged construction and extreme simplicity makes it possible for even non-technical personnel to operate them with ease and complete dependability. In particular, the portable units, which are small in dimensions, sturdy and light in weight, make quality control testing possible in areas where commercial testing facilities are not available and where the transportation of larger and much heavier machines would be difficult.
• Conforms to IS: 14858(2000) and calibrated with an accuracy of± 1 % as per the requirement of 1828(Class1).
• It can also be supplied as per BS: 1881 and other associated International Standards.
• These machines are available in 50kN, 100kN,500kN, 1000kN,2000kN, 3000kN & 5000kN Capacities.
• Analogue models.
• Digital models with pace rate indicators.
• Micro Controller based models with automatic pace rate controllers.
• Fully Automatic models.

Load Frames are Loading devices employed for application of compression and penetration loads required for various tests, such as Unconfined Compression Test, Triaxial Shear Test, California Bearing Ratio Test etc.

 The load application is effected by advancement of a lead screw secured against rotation by a sliding key and is measured with a Proving ring or Load Cell.

A wide variety of Electro Mechanical to Microprocessor Load Frames with different designs of frame structure, modes of operation (manual or electrically driven), loading capacities, speeds of travel are available, so that appropriate selection is possible to meet the requirements of standard methods used for various tests to cover different soil types and sizes of specimens.

Models Available:

Motorised 3 speed, 50kN (5,000 kgf) capacity
Electronic 4 Speed 50 KN
Motorised, 30 speeds, 50kN (5,000 kgf) capacity
Electronic 34 Speed 50 KN (AIM-064-1 )
Motorised, 50 kN (5,000 kgf) capacity
Microprocessor Based

Motorised, 12 speeds, 200kN (20,000 kgf) capacity
Motorised, 12 speeds, 500kN (50,000 kgf) capacity

Rapid Pump ® Technology, exclusive dual pump system for speedy lift with far fewer pumps saving time and energy.
Two piece steel handle for efficient pumping• The universal joint release provides precise control of load descent in any handle position
 Extra wide, rear swivel casters for stability and easy jack positioning
Built in by-pass device protects hydraulic system from over pumping ensures safe operation
With solid welded Steel construction this jack is ideal for Professional mechanics and hard core automotive enthusiasts.

Designed to meet the requirements of Civil Engineer, Surveyor and Mining Engineer for high grade instruments giving a maximum portability. Both circles of this soil testing equipment are totally enclosed making the instruments suitable for work either above or below the ground.

Vernier Transit Theodolite is supplied with standard accessories in teak wood box with aluminium telescopic tripod stand. 

Prismatic compass

Optical square

Levelling staff

Top SURV onboard:

Expanded import and export for CAD packages
Exclusive enhanced right mouse support
Multiple layer selection
Exclusive Topo Grid Function
Improved digital level support
Connected

Expand on-board memory or move files using Compact Flash technology
Upload or download data directly to a PC in the field or office using the USB A port
Use the mini USB port to connect to activesync.
Visibly Different

  Dual backlit full keypad (1" & 3" models only)
Smaller, lightweight design and rugged construction for ease of transport and durability
Rechargeable batteries provide increased operating times
Most powerful reflectorless EDM available (2000m)
Long range power means unsur-passed short range performance
Pinpoint accuracy with narrow, focused beam

Radar Speed Gun

Noise Dosimeter

Available with pin probes or non-invasive for non-destructive testing, the gauges give average moisture content by comparing the change in impedance between damp and acceptably dry substrates.

Calibrated ready for use
Instant readings on a clear, easy to read scale
Fully portable, battery operated and non-destructive

TFT model, with color display for excellent visibility, the proffered selection is known for efficient auto DAC plotting, digital thickness/distance measurements and trigonometric measurements of depth surface distance in weld inspection.

Features:

Reliable operation
Longer functional life
Portable