Milestone Instruments

Uttam Nagar, Delhi

Laboratory Ball Mill is primarily designed for grinding pigments. The material is ground at a specific speed by using a specific quantity of grinding media (steel balls) for a specific period. The equipment is used for making the ground cement samples in the laboratory. Apart from the cement industry, it is also used in the paint, plastic, granite and tile industries.

De-Aired Tank is designed to remove dissolved gasses from ordinary clean water. The apparatus consists of a closed cylinder with hose attached to vacuum pump provided, which is controlled by PID controller.

The apparatus comprises a sieving unit, which allows testing of a specimen with an exposed sieving area corresponding having 148 mm diameter with a supported Grid of 1.4 mm diameter and mesh size of (101)mm to support the specimen during the test to avoid excessive deformation having the nozzle for discharge of water Fixing on the acrylic sheet cover for viewing the sample during test. The complete set is provided with the pan which has the drain nozzle for collate the water after test.

Rounded Beads, made of glass, size 0.85 mm (passing 1 mm and retained at 0.85 mm)Rounded Beads, made of glass, size 0.425 mm (passing 0.85 mm and retained at 0.425 mm) Rounded Beads, made of glass, size 0.25 mm (passing 0.425 mm and retained at 0.25 mm) Rounded Beads, made of glass, size 0.18 mm (passing 0.25 mm and retained at 0.18 mm) Rounded Beads, made of glass, size 0.15 mm (passing 0.18 mm and retained at 0.15 mm) Rounded Beads, made of glass, size 0.075 mm (passing 0.15 mm and retained at 0.075 mm)

The Universal Testing Machine is designed to carry out various tests on Geotextiles viz. Narrow & wide Tensile Strength, Trapezoidal Tearing Strength, CBR Push through and Puncture Strength etc. The machine gives a choice of seven constant rates of travel of the lead screw ranging from a maximum of 320mm/min to a minimum of 50 mm/min. The capacity of the machine is 100kN (10000kgf).It is provided with two no of load cell 100 KN and 10 KN

The apparatus consists of two test drums of 14 cm dia and 10 cm effective length with 16 nos. of 4 mm dia rods provided circumferentially at equal spacing to hold the geotextile specimen in position. Two troughs to contain the test drums are supported on horizontal axis, facilitating free rotation and capable of being filled with distilled water to a level of 20 mm below the drum axis. The clearance between the trough and the geotextile could be maintained at about 40 mm. The apparatus is provided with a motor drive and a change gear assembly to enable rotation of the drums at a speed of 20 rpm.

This chamber is capable of maintaining a temperature range from - 40 to + 100C and controlled by the PID controller for better accuracy.

Colour Matching Cabinet with D65. TL84.Illuminant A.UV-Light. CWF (Cool White Fluorescence.) D50.Simulated Sunlight. CDL (Cool Day Light.)

Dimension :

• Outer dimension : 720mm x 520mm x 650mm
• Viewing area : 595mm x 460mm x 410mm

It is a motor driven mechanical compactor useful for soil compaction. Two sets of Rammers are provided The rammer assembly is provided with a ratchet and pawl arrangement to lift it from the top of the soil layer. When the rammer reaches the required height the pawl release the rammer which falls freely on soil surface. An automatic blow counter fitted to the compactor is used to set the number of blows. The base plate of the specimen mould is to be fitted to the rotating base plate of the instrument which marks 1/5" revolution per stroke. The equipment is suitable for operation on 230 V, 50 Cycles, Single Phase, A.C. supply

The apparatus consists of

• Mould, 150 mm ID x 175 mm high M. steel
• Metal Tripod, for Dial Gauge
• Penetration Piston, 50 mm face dia
• Circular Metal Spacer Disc, with detachable handle, 148 mm dia x 47.7 mm height
• Perforated Plate, 148 mm dia, with adjustable Stem and Lock Nut
• Soaking Tank for six CBR mould
• Extension Collar, 150 mm ID x 50 mm high
• Annular Metal Weight, 2.5 kg, 147 mm dia with 53 mm dia central hole
• Slotted Metal Weight, 2.5 kg, 147 mm dia, with 53 mm dia slot
• Swell Plate
• Cutting Colla

Available in two options as follows

• Cone Penetrometer, AutomaticThe unit is supplied complete with a stainless steel penetration test cone 35 mm long with a smooth polished surface and an angle of 30. Facility exists for adjusting cone height in relation to the specimen. Cone Penetrometer consists of one each of the following: Automatic Timer Penetration Test Cone Penetration Test Cup, 55 mm dia x 40 mm deep
• Cone PenetrometerCone Penetrometer consists of one each of the following: Penetration Test Cone, Penetration Test Cup- 55 mm dia x 40 mm deep

The Volume Change Gauge illustrated works on the principle of reversing the direction of flow when the limit of the volume change scale is reached. The number of cycles with the volume of fluid handled in each cycle provides the total volume change, whereas the sensitivity is governed by the dia of the polythene tube used. The sensitive volume change gauge has realized sensitivity of 0.003 ml/mm with the 6 ml volume of fluid per cycle. The apparatus consists of a volume measuring polythene tube running along both sides of a scale and connected at both ends to two mercury traps. These traps are connected to flow reversal valves through a manifold. The length of the polythene tube is enough to measure 6 ml volume of fluid per cycle. A small pallet of mercury is introduced in the circuit to be used as a cursor, and the movement of pallet is measured. The unit is tested to a pressure of 20bar (20 kg/cm2) and is designed for wall mounting.

To make the process of sieving easier and quicker, electrically operated mechanical Sieve Shakers are offered for dry sieving. These Sieve Shakers are popularly used not only in soil laboratories but also in a number of industries where sieving is required; such as for ores, refractory materials, minor aggregates, pigments, powdered coal, soap, cement, roofing materials, plastic moulding powders and pharmaceuticals. The Sieve Shaker can carry up to 7 sieves.

• Sieve Shaker Manual. Hand Operated
• Sieve Shaker motorised Gyratory for 200mm sievesIt is driven by a HP motor. The Sieve Table is inclined from the vertical axis and the direction of Inclination changes progressively in the clockwise direction. In addition to the gyratory motion of the table, there is a tapping motion as well.

It consists of a stainless steel cylinder with an insulated cover, mounted on a sturdy supporting frame, enclosed in a heat insulated metal housing, attractively finished. The attached control unit encloses a sensitive pressure regulator and pressure gauge, power switches and pilot lamps for controlling the electric heating units. Inside Chamber dimensions: 15 cm dia x 60 cm height, with stainless steel Cylinder (20 kg/cm2 pressure capacity) Suitable for operation on 220 V, 50 Hz, Single Phase, AC Supply and supplied complete with Test Bar Holder, Special Rack to hold specimens above water level in the autoclave and in a vertical position to expose them in the same manner.

The apparatus is used in specification tests of masonry cement and physical testing of quicklime and hydrated lime. Unlike older models, the newly designed unit incorporates a vacuum regulator and gauge system in place of the old mercury manometer and relief column. The complete unit consists of an aspirator pump, vacuum regulator, vacuum gauge, three-way stopcock, flask, rubber gasket, brass funnel, perforated brass dish, filter paper and hardwood stand.

The unit is supplied complete with a stainless steel penetration test cone 35 mm long with a smooth polished surface and an angle of 30. Facility exists for adjusting cone height in relation to the specimen. Cone Penetrometer consists of one each of the following :

• Penetration Test Cone
• Penetration Test Cup, 55 mm dia x 40 mm deep

Film stripping device is used to measure the resistance of bituminous mixtures to stripping of asphalt from aggregate particles. It is generally used to evaluate mineral aggregates & to judge the adhesion of the bituminous materials. The device consists of a disk on which 4 bottles are mounted. The disc rotates at a speed of approx. 100 rpm. The sample is placed in the bottles & agitated for 15 minutes. The percentage of aggregate stripped can be visually estimated. The device is provided with a pre set counter. Suitable for operation on 220 V, 50Hz, Single Phase, AC supply.

Heavy duty, pillar type frame with Diesel Engine operated with 5 HP capacity Varying cutting feeds provided with water-fed swivel head to connect to suitable water supply. Provision at base for water. Note: - Petrol driven engine is also available Following Core Bits are available as options

• Core Drilling Bit, 21.46 mm dia (EX size)
• Core Drilling Bit, 30.10 mm dia (AX size)
• Core Drilling Bit, 38 mm dia
• Core Drilling Bit, 42.04 mm dia (BX size)
• Core Drilling Bit, 54.74 mm dia (NX size)

These are used to measure the working and ultimate capacities of rock bolt anchors. Further, our products comprises of a central hole jack, hand pump with load gauge, directional control valve and only for central hole jacks above the capacity of 500kN, flexible pipes, truss high tensile test rod with coupling. Moreover, the load cell can be used for the measuring of pull out load and arrangement is provided for fixing dial gauge for estimating deflection against the load. In addition to this, we provide different size of adopters with the high tensile test rod.

This bench mounted, single spindle lapping machine is ideally suited for the final polishing of mounted rock or concrete specimens. Two sample holders of sample size ordered for are provided with each machine as standard supply. Sample holders of other sizes can also be provided on request. This is a motor driven unit with 450/500 rpm. A swing-in tap, for continuous water supply during operation, is also provided. This unit is operated by a single phase, 230 V, AC motor.

Features

• Compact table model
• 20 cm dia Top and Adopter to hold polishing cloth or paste
• Sample Holders to accommodate upto NX size Cores
• Continuous water feed arrangement during operation

It has a removable, precision machined, aluminum rotor bowl, mounted on a vertical shaft. A filter paper disc is pressed in- between the rotor bowl and cover plate by tightening a knurled nut. The bowl assembly is enclosed in a housing mounted on a cast body. In the electrical operating model, the rotor bowl is coupled to a motor. The solvent may be introduced during test through a cup on the housing cover. Meets:- ASTM D 2172, AASHO T-58, T-164 We offer following types of modals

• Centrifuge Extractor, Manual, capacity 1500gram
• Centrifuge Extractor, Manual, capacity 3000gram.
• Centrifuge Extractor, Electrical, capacity 1500gram.
• Centrifuge Extractor, Electrical, capacity 3000gram.

• Rugged construction to withstand hard work
• Fully automatic and easy to operate
• Uniform compaction
• Automatic Blow Counter

The Automatic compactor eliminates the laborious process of manual compaction and an even degree of compaction is achieved. The drive mechanism lifts the weight of 4.5 kg and drops it through a correct height of 457 mm. The rammer foot is removable, which facilitates preheating.A compaction pedestal with specimen holder is fixed to the base. An automatic blow counter enables the number of blows to be preset before each test and automatically stops the machine on completion. Suitable for operation on 230 V, 50 Hz, single phase, AC supply

This is for aggregates resistance to abrasion. The apparatus consists of a metal disc which revolves in a horizontal plane on a vertical shaft. A suitable attachment for holding the specimen with is axis vertical and its lower end pressed with a prescribed pressure against the surface of the disc (the distance from the centre of specimen to the centre of shaft being 25 cm) is provided. A convenient funnel for feeding sand continuously upon the rotating disc is also provided. The machine is fitted with a h.p. electric motor, driven through a reduction gear to give 28-30 revolution of the disc per minute. Suitable for operation from 220/230 volts single phase, A.C. supply

The object of this apparatus is to determine the polished stone value which gives a relative measure of the extent to which different types of road stones in the wearing surface will polish under traffic. The complete apparatus consists of the following:

1. An accelerated polishing machine
2. A friction tester.
3. IS test sieves of sizes 10mm., 8.0mm.(both perforated plate), 425micron, 300micron, 212micron, 150micron.