The Proving rings are made of special steel carefully forged to give maximum strength and machined to give high sensitivity commensurate with stability ensuring long life and accuracy. All proving rings are integral type viz, the loading (outside) bosses are forged integral with the ring body. This ensures that there is no possibility of abutment shift and consequent loss of accuracy in reading that always exists with bolted abutments. The dial gauge and anvil are mounted on U-brackets clamped to the ring body by set screw. The dial gauge is fitted with a special back cover and threaded bush. Which does not permit any shift from the original dial alignment, coaxial with the loading boss centres, that is set at the factory before calibration. For all compression proving rings and tension compression proving rings up to and including 5 KN capacity the loading bosses have female threading ½” BSP (16 TPI) The boss faces are ground and polished and are plane parallel to within 0.2mm total DTI run out.
Tension compression rings have their integral loading bosses male threaded, 1.25” dia, 8 tpi square thread, 1.25” long. Caps are provided for use when loading in compression Repeatability is as stipulated in IS 4169 The rings are supplied complete with dial gauge and Works calibration Chart. Individuallypacked in polished wooden. Boxes. NCCBM Calibration can also be arranged for any proving ring at an additional cost. Proving rings to meet special requirements are also available on request. Separate polished and ground pair of Loading Pads FOR Compression Proving Rings and Pair of Shackles for Tension Proving Rings are provided to suit each proving ring, at extra cost. Additional Information:
Vernier Transit Theodolite is 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. Additional Information:
The Direct Shear test apparatus consist of a square or circular box 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 juncture between the box sections of this. 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. The load yoke in these direct shear test apparatus helps counter balance the loading system. The lead screw connected to the shear box housing helps application of shear stress. Direct Shear Test Apparatus comprises of Direct Shear Box assembly for 60mm x 60mm x 25mm thick specimen, Shear Box Housing, Specimen cutter, Loading Unit with a capacity of 8kg/cm2, set of weights to give normal stress of 3kg/cm2, Proving Ring duly calibrated by Nccbm (Govt) of 2.5kN (250kgf) capacity & 2 (Two) Dial Gauges 0.01mm x 25mm travel.
The load yoke with direct and through level system for applying normal load upto 8 kg/cm2 capacity, fixtures for proving ring, brackets for holding consolidation and strain dial gauges are also provided in these direct shear test apparatus. Additional Information:
We are providing Plastic Limit Apparatus, which is a useful device to determine the plastic limit and clayeyness of soil. These are mainly catering to the requirements of diverse industries such as used in construction, mining and agriculture. Consists of:
Porcelain Evaporating dish 12-15 cm dia, Flat glass plate about 200 mm square, Spatula flexible, with blade about 10 cm long & 2 cm wide stainless steel with wooden handle, Palette knife 15-20 cm long & 2 cm wide.
Consists of -
Porcelain evaporating dish, shrinkage dish, glass cup, Perspex Prong plate, with three metal prongs, Perspex plain plate, spatula stainless steel with wooden handle, Glass cylinder 25 ml. Accessories: Mercury 500 gram.High speed stirrer with baffle, glass & speed control regulator. Speed 8,000-10,000 RPM. 220V, 1 PH.AC.
Our company offers Universal Automatic Compactor, which are motor driven mechanical compactor useful for soil compaction for 100 & 150 mm moulds. This equipment is suitable for operation on 230 volts, 50 cycles, single phase and A.C. supply.
Universal Automatic Compactor, IS : 2720 (P-vii & viii), IS : 10074-82Motorized for 100 & 150 mm moulds.Two sets of rammer 2.6 kg x 310 mm drop & 4.89 kg x 450 mm drop as per ISS/ BSS. with one CBR Mould with collar & perforated base plate. l/5th revolution per stroke of rotating base plate with Automatic blow counter.230V, 1 Phase, 50 cycles, A.C. supply. Additional Information:
We are engaged in manufacturing and supplying Plate Bearing Test Apparatus, which is used for estimating the bearing capacity of shallow foundations in situ and for the design of flexible pavement. This test is a standard technique fro determining bearing capacity of soils and is used in agriculture, defense, education, geophysical/ seismology, irrigation and mining industry. Dynamic Cone Penetrometer (DCP) It is used for rapid in-situ measurement of the structural properties of existing road pavement constructed with unbound materials.The unit incorporates an 8 Kg weight having a drop of 575 mm, fitted to end of the shaft is a 20 mm diameter cone. With the standard DCP measurements can be made down to a depth of approximately 850 mm.Reading are taken after a set number of blows, changing the number according to the strength of layer being penetrated. For good granular bases,readings every 5-10 blows are satisfactory, but for weaker sub-base layers and sub grades, readings every 1-2 blows may be appropriate.
The DCP requires Three operators, one to hold the instrument in a vertical position, one to raise the hammer and let it fall and one to record the results. A typical test takes only a few minutes, providing a very efficient method of obtaining information, which would otherwise require the excavation of test pits. Where pavement layers have different strengths, boundaries can be identified and layer thickness determined.Supplied complete in a nice Wooden Carrying Case. Additional Information:
With the help of our state-of-the-art infrastructure and experience of our experts, we have been able to manufacture a wide range of Swell Pressure Apparatus, which is provided with high sensitivity proving ring, 2.5 KN or 5 KN fitted with 0.002 mm dial gauge with certificate in a nice wooden carrying case. These are catering to the requirements of construction, defense and agriculture industries.
Consists of one Load Frame, hand operated 50 KN one swell mould, 100mm dia x 127.3 mm ht x lOOOc.c. volume with base plate and collar., one Perforated Swell Plate 100 mm dia x 16 mm thick, one spacer 100 mm dia x 12.7 mm thick, two porous stones, one transfer bar, one steel ball and one Soaking Tank, 250 mm dia x 210 mm high. Without dial gauge and proving ring.Accessories:High sensitivity proving ring, 2.5 KN or 5 KN fitted with 0.002 mm dial gauge with certificate in a nice wooden carrying case.Dial gauge 0.01 mm x 25 mm travel. Additional Information:
California Bearing Ratio Test (Field Type) Item code: ESTE-104
To know C.B.R. Values in situ, it is useful in determining the load carrying capacity in the field when in-place density and water contents are such that the degree of sturation is 80 % or greater, when material is conhensionless and coarse grained, such that it is not effected by changes in water contents and when the material has been in-place for considerable time. The loading is effected by means of a mechanical load frames which can be fixed to the under side of a truck.Salient
Features Specifications :
Mechanical screw loading jack, 10,000 kg. capacity with U-bracket and swivel head. Penetration piston, 50 mm dia. threaded at the upper end. Extension rods consisting of 2 lengths 5 cm. 2 lengths 10 cm., 1 length 30 cm.,1 length 50 cm., and 1 length 100 cm., used as spacers between the proving ring and penetration piston. The lengths are machined from steel tubing. Connector set, has eight connectors for coupling the penetration piston and proving ring assembly either directly or through extension pieces. Dial gauge support of seamless pipe construction. It stands 30 cm high and 45 cm wide at the base. Provided with a quick release screw type clamp capable of sliding and locking anywhere along 2 meter length of the bridge. Supplied with annular metal weight 5 kg., 250 mm dia with 53 mm dia central hole, Slotted metal weight 5 kg., 215 mm to 250 mm dia with 53 mm dia slot, 2 Nos. Slotted metal weights, 10 kg., 215 mm to 250 mm dia with 53 dia slot 2 Nos. Additional Information:
California Bearing Ratio Test (Hand Operated) Item code: ESTE-105
The equipment consists one each of the following: Load frame, Hand operated, Capacity 5000kg. with high and low rates of travel of the load screw. Mould made frame Gun-metal / Brass, 150mm internal dia x 175mm high, with perforated base plate and extension collar 50mm high. Penetration piston, face dia 50mm with adjustable bracket for penetration dia gauge. Circular metal space disc, 148mm dia x 47.7mm high, with detachable handle. Annular metal weight, 2.5 kg., 147mm dia with 53mm dia central hole. Slotted metal weight, 2.5 kg., 147 mm dia with 53 dia slot. Perforated plate made of Gun-metal / Brass 148mm dia with adjustable stem and lock nut and a metal tripod for dia gauge. Cutting collar, Rammer 2.6 kg. weight with drop of 310mm. Rammer 4.89 kg. with drop of 450mm. Supplied without proving ring and dial gauge. Additional Information:
California Bearing Ratio Apparatus (Motorised) Item code: ESTE-106
Similar to above but supplied with bench mounting type 5000kgf. capacity load frame motorised, in place of load frame hand oprated. The lead screw of the load frame has a single constant rate of travel of 1.25mm/min.
Accessories for Laboratory C.B.R. Apparatus :High sensitivity Proving Ring 3000kg. capacity with calibration chart and carrying case.
Dial Gauges 2 Nos.0.01mm x 25mm.Annular metal weight 5 kg. 147mm dia with 53 mm dia. central hole.
Slotted metal weight, 5 kg. 147mm dia with 53 mm dia slot.
Note: Proving Ring of other capacities are also available. Additional Information:
California Bearing Ratio Apparatus (Motorized) Item code: ESTE-107
The equipment consists bench mounting type 5000kgf capacity load frame motorized, in place of load frame hand operated. The lead screw of the load frame had a single constant rate of travel of 1.25mm/minute.Salient FeaturesMould made from Gun metal/Brass, 150mm internal dia x 175mm high, with perforated base plate and extension coller 50mm high. Penetration Piston, face dia 50mm with adjustable bracket for penetration dial gauge. Circular metal space disc, 148mm dia x 47.7mm high with detachable handle. Annular & slotted metal weight of 2.5 kg having 147 mm dia. with 53mm central hole. Perforated plate made of Gun metal/Brass 148mm dia with adjustable stem and lock nut and a metal tripod for dial gauge.Cutting collar.Rammer 2.6kg weight with drop of 310mm.Rammer 4.89kg with drop of 450mmDial gauge 0.01 mm x 25mm travel.High sensitivity proving Ring 3000kg capacity with calibration chart and carrying case.. Additional Information:
The apparatus consists one each of Compaction Mould Gun Metal, 100 mm I.D. x 127.3 mm height x 1000 cc. volume, complete with collar and base plate. Rammer 2.6 kg x 310 mm controlled fall. Additional Information:
Instrument consists one each of Compaction Mould, Gun Metal, 150 mm I.D. x 127.3 mm height volume 2250cc. complete with collar and base plate. Rammer 4.89 kg x 450 mm controlled fall for heavy compaction test Note: Instead of Gun-metal moulds, steel moulds are also available. Additional Information:
Tension And Compression type Proving Ring Item code: ESTE-110
Tension Compression Proving Rings are having standard 1/2" (BSF Threads) and for measuring tension , 2 Nos. tension rods having male threads at both ends are supplied.For measuring loads in compression these tension rods are removed and the ring can be used in usual way.Works calibration charts for tension and with each ring . Supplied complete with tension rods in a carrying case. Note :
We can also supply the following Proving Rings. 1. Tension cum compression proving ring upto 10,000kg capacity. 2. Double proving Rings. Additional Information:
Direct Shear Apparatus (Hand Operated) Item code: ESTE-112
For determination of the direct shear strength of soils on specimen size 60 mm x 60 mm x 25 mm.
The apparatus comprises of the following:Loading Unit:Supplied with load yoke with direct and lever system for applying load. Normal stress capacity 8 kg/sq.cm. Load is applied either directly or through a counter balanced detachable lever. Provision is madefor the load to be applied either through a steel ball recessed in the loading pad or direct through a boss on the pre calibrated loading yoke, the loading unit is provided with V strips and roller strips for frictionless movement of shear box housing.Shear Box Assembly :Comprising Direct Shear box in two halves for a square specimen size 60 x 60 x 25 mm one pair of plain gripper plates, one pair of perforated gripper plates, one pair of porous stones, one top loading pad. Shear box housing: Accommodates the Direct Shear Box assembly. Complete with two ball roller strips.Specimen Cutter: For cutting 60 x 60 x 25 mm specimen from larger samples.Set of weights to give a normal stress of 3 kg/sq.cm. through lever as follows:To give Kg/sq.cm. Qty. 0.05 4 Nos. 0.1 1 Nos. 0.2 1 Nos. 0.5 3 Nos. 1.0 1 Nos.Complete set as above but without proving ring. Salient FeaturesEssential Accessories : High sensitivity compression proving ring cap 200 kg One Consolidation dia gauge 0.01 mm x 25 mm and one strain dial gauage 0.01 mm x 25 mm and one strain dial gaine 0.01mm x 25 mm. Optional Extras : Additional set of weights to give a normal stress of 5 kg/cm2. Soil Sampler for 60 mm x 60 mm specimen and test form pad of 50. Spares: Porous stone for 60 mm x 60 mm size sample available in pairs. Additional Information:
The apparatus is used for the laboratory determination of permeability of soils using a constant or a variable head. This test is recommended for soils with co-efficient of permeability in the range of 10 x -3 to 10 x -7cm/sec. The maximum particle size of the soil which can be tested in the mould is 10 mm.
Salient Features Accessories :
The equipment comprises one each: Gun metal mould, 100mm I.D. x 127 mm high x 1000 ml volume. Gun metal mould extension collar, 100 mm dia x 60 mm high for the above mould. Gun metal Drainage base plate with a recess for a porous stone and with an outlet valve. Metallic clamping ring. Gun metal drainage cap (top plate with a recess for a porous stone and fitted with an inlet valve and an air release valve.) Gun metal dummy plate to serve as a false bottom during compaction. Porous stone for drainage cap. Porous stone for base plate. Set of glass stand pipes approximately 6 mm dia., 10 mm dia and 20 mm dia mounted on a wooden board. Each glass tube is longer than 1 meter and has a serrested end at the bottom. To read water head 2 Nos. meter scales are fixed between the tubes. A length of 3 meter long rubber tubing with pinch cock is also supplied. Additional Information:
Universal Or Combination Permeameter Item code: ESTE-120
Same as above but instead of a set of three glass stand pipes a stand with nine glass tubes of 6 mm, 10 mm, 20 mm, 25 mm, 40 mm, 50 mm, 60 mm, 70 mm, 75 mm bore. 75 mm bore tube is provided with overflow arrangement for constant head tests. The remaining tubes are used for following head test.
Salient Features Optional :
Overhead tank made of steel, approximately 37.5 cm dia x 1 mtr. high. it is provided with an inlet port at the top and size outlet at bottom with cocks and air inlet and water filling ube on top. An arrangement is provided to indicate the water level. An extra meralic tube having approximately 5 mm / 6 mm I.D. and 1 mtr. long is also supplied 2.6 kg x 310 mm controlled fall and Rammer 4.89 kg x 450 mm controlled fall.
Spares : Pair of top and bottom Porous stones for permeameter mould. Additional Information: