Aggregate Testing Equipments
  Bitumen/Asphalt Testing Equipments
  Cement Testing Equipments
  Concrete Testing Equipments
  General Lab Testing
  Material Testing Equipments
  NDT Concrete Testing Equipments
  Paint, Oil, Petrolium Testing Equipments
  Rock Testing Equipments
  Soil Testing Equipments
  Compression Testing Machine
Aggregate Testing Equipment
We are a well known name in manufacturing testing instruments which are available in economical prices. These products are well integrated with various essentials. Following are the products we are offering under this category:
KEWIL Aggregate Impact Tester
We are a reckoning name in manufacturing impact testers. These are superior in quality and deliver highly rated performance. We ensure that these testers are accurate in functioning and yet cost effective. Following are some essentials provided along with our equipment:

• Automatic blow counter
• Tamping Rod
• Cylindrical Cup
• Metal Measure 75 mm ID X 50 mm deep

Characteristics of Aggregate Impact Tester

  • The instrument consists of a circular base with two vertical guides.
  • Provided with a hammer, which can be raised to fall freely down the vertical guides.
  • The hammer is provided with locking arrangement.
  • The equipment is provided with metal measures and tamping rod.

Aggregate impact tester finds application in the following industries:

  • Construction
    (Roads, Bridges, Dams, Buildings, etc.)
  • Cement
  • Ceramics
  • Chemicals
  • Mining
  • Irrigation
  • Calibration laboratories/Test houses
  • Research & Development
  • Education
  • Railways
KEWIL Crushing Value Apparatus
Our aggregate crushing value apparatus are used for measuring resistance of an aggregate to crushing. This apparatus is extensively used for various industrial applications.

The equipment consists of a steel cylinder Provided with a base plate, a plunger handle and a tamping rod.
One end of the tamping rod is rounded.The surfaces coming into contact with the aggregate are case hardened.

Sizes Available:
1.75mm dia
2.150mm dia
3.200mm dia
KEWIL Devel Abrasion Machine
For resistance of aggregate that is caused by wear two hollow cylinders are attached. These cylinders are closed at one end and are provided with tight fitted covers at the other end. The inside diameter of the cylinder is of 20cms and 34cms depth. These cylinders are mounted on a shaft at an angle of 30 degrees with the axis of rotation. The shaft rotates at 30-33 r.p.m through a reduction gear, coupled to a motor.

Suitable for operation on Three phase AC Supply with 440 volts & 50 cycles. The m/c is fitted with a push button and counter starter for easy user interface. Complete with abrasive charge the machine consists of 12 cast iron spheres of steel spares. The spares are steel balls that are hardened & are of approximately 48mm dia meter, each weighing between 390-445 gram.
KEWIL Dorry Abrasion Testing Machine : BS : 812
This machine is used for determining the resistance of aggregate to wear by abrasion. Two specimen can be mounted simultaneously and then kept loaded by weights against a machined flat circular grinding surface. The grinding disc rotates at 28-30 r.p.m and two funnels release a continueous flow of Suitable sand for operation on 230 Volts, Single phase 50 Cycles A.C. Supply.

Optional: Digital Timer.

KEWIL Los Angeles Abrasion Machine
The important features and specification of Los Angelesabrasion testing machine are :

The machine comprises of a hollow cylinder, which is horizontally mounted on a strong frame on ball bearings. The cylinder has an opening, which can be closed with a dust tight cover to promote charging and discharging the cylinder with the material under test. It consists of a detachable extension that extends throughout the interior of the cylinder and prevents it from falling on the cover. The cylinder is rotated by an electric motor through a heavy reduction gear. A revolution counter is attached to the frame and provided with tray for collection of materials at the end of the test. The machine is supplied with abrasive charges consisting of a set of 12 hardened steel balls having approximately 48 mm diameter.

Optional: Digital Timer.
KEWIL Tile Abrasion Testing Machine
IS : 1237-1980, IS : 1706 - 1972

It is used for determining the resistance of flooring tiles to wear or abrasion.

It consists of the following :-
i) A grinding disc furnished with a replaceable grinding path and rotating horizontally about its vertical axis.
ii) A circular tray enclosingthe grindingdisc.
iii) Holding device for test specimen.
iv) Reduction gear coupled to a motor for operation on 220 v, 50 Hz, single phase supply.
v) Revolution counter. (Preset cumulative).
vi) A 7.5 kg weight to apply 30 kg load on specimen through lever.

Thickness Measurement Jig with 0.01 mm x 25 mm dial gauge.

KEWIL Cylindrical measures
Cylindrical measures are used to determine unit weight of concrete or fine, coarse and mixed aggregates, as well as for void content of aggregates. These measures are immune to cement paste and can also be used for unit weight and yield of fresh concrete. It also indicates the angularity, spherical nature and workability of fine aggregate in a mixture.

Materials used to make Cylindrical Measures
These are usually made of heavy duty materials to withstand rough usage.

They are generally made up of :
• Sheet Iron
• Aluminium
• Steel
• Metal

Salient Features
Some important features are :

  • Cylindrical measures are calibrated and provided with handles.
  • Consists of three measures, one each of 3 litres capacity, 15 litres capacity and 30 litres capacity.
  • Provided with a tamping rod which has 16 mm dia and is 600 mm long. One of the ends of the rod is rounded.
  • These are watertight with top and bottom true and even.
  • Steel units are seam welded with bail handles; aluminum ones are machined to accurate dimensions and have integral cast handles.

There are mainly used for determining unit weight of concrete or aggregates. Some of the areas where they find application are:
  • Testing crushed rock
  • Cement & concrete industry
  • Testing of crushed slag & crushed and uncrushed gravel
  • Construction (Buildings, Roadways, etc.)
KEWIL Jaw crushers
Jaw crushers are primary crushers used for the processing of hard feedstocks, such as rock and concrete. This is made possible with the help of a pair of vertical jaws lined with replaceable manganese steel plates. One jaw is fixed and the other moves back and forth.

Salient Features
The important features are:
  • The crusher is made of cast steel.
  • The jaws of the crusher are made of manganese steel.
  • The opening of the jaws is adjustable from 20 mm to 6 mm and its capacity is 200 kilograms per hour.
  • The crusher is provided with a hopper at the top for pouring materials.
  • The equipment is supplied with 3 HP electric motor, triple V-belt pulley type and mounting frame.
The various components of jaw crusher are :
  • Crusher Frame
  • Jaw Stock
  • Pitman
  • Eccentric Shaft
  • Anti-friction Bearings
  • Crushing Jaws
  • Wedge Setting Block
  • Toggle Plates
  • Side Plates
  • Fly Wheels
  • Draw Back Strings & Fittings
Working Principle of Jaw Crusher
The working principle of these crusher is based on modern design, that is, "crushing without rubbing."

The equipment consists of two Jaws, one is fixed and the other moves back and forth. The jaws are positioned in such a way that there is a wide opening at the top, known as the gape, and a narrow discharge aperture at the bottom, set to the desired output size. The pitman lever moving on an eccentric shaft on bearing suspend the moving jaw on the center pin. The material held in between the two jaws are crushed by mechanical pressure.

There are very useful in aggregate industries for crushing rocks and stones. Some of the areas where they are commonly used are :

• Building Construction
• Roadways Construction
• Aggregate Production
• Concrete Preparation
KEWIL Length gauge
Length gauge is used to measure sample sizes of aggregates, sand and fillers.

Salient Features
  • The instrument consists of a steel plate on which eight steel pins are vertically mounted with specified distance in between.
  • It consists of a hard wood base with vertically mounted metal studs.
Working Principle of Length Gauge
  • Particle is elongated when its length is more than 1.8 mm of the midsize of the sieve fraction.
  • Aggregate, which has to be classified is parted into 7 sieve fractions from 63 to 6.3 mm and each part is examined separately.
  • There are 6 labeled opening between pairs of metal pins. These pins measure particle from each of the 6 sieve cut below 50 mm.
Elongation index is the mass of elongated particles failing to pass between pins as percent of the sample.

It is an instrument used to measure sample sizes of aggregates, sand and fillers. Some of the application area of length gauge are :
  • Soil Analysis
  • Cement & Concrete Industry
  • Rock & Aggregate Testing
  • Ceramic Industry
  • Research & Development
KEWIL Riffle sample dividers
Riffle sample dividers are used for the easy dividing and reduction of bulk material samples with particle sizes ranging from less than 1 mm up to a maximum of 10 mm. This equipment is mainly used for sampling aggregates, cement, ores, refractory materials, pigments, soap, powdered coal etc. It is also used for rapid collection of true representative sample from aggregates, sand and fillers.

Salient Features
The salient features of riffle sample divider are :
  • The equipment is made up of sheet metal and consists of a metal box mounted on legs.
  • It is fitted with a series of channels or slots of equal width that discharge the material alternatively in opposite directions into separate pans.
  • The slots of the riffle are steep enough to allow rapid flowing of the material.
  • The Equipment has 14 numbers of slots of 13 mm width and is supplied with two receivers.
Riffle dividers find application in many areas. Some of its application areas are :
  • Rock & Aggregate Industry
  • Cement Industry
  • Mining
  • Construction (Roads, Bridges, Buildings, Dams etc.)
  • Ceramics Industry
KEWIL Thickness Gauge
Thickness Gauge, also known as Flakiness Index is an instrument used to select samples from aggregates, sand and fillers. They can also be used to determine the flakiness index of aggregates.

Salient Features
  • The instrument consists of a frame with a sliding panel.
  • The slot comprises of properly cut standard slots of different length and width.
  • They are usually made of steel with chromium coating.
Working Principle of Thickness Gauge:
  • A particle is said to be flaky when its thickness is less than 0.6 of the mid-size of the sieve fraction.
  • This type of gauge has 7 labeled slots for rapid hand trying of particles from each of the slots.
  • Flakiness index refers to the mass of all flaky particles, passing appropriate slots, as percent of the sample.

Thickness gauge finds application in following areas :

  • Cement & Concrete Industry
  • Soil Study
  • Rock & Aggregates Industry
  • Ceramic Industry
  • Research & Development

 All © Copyrights 2009 reserved by KEW INDIA