Measurement of roughness of a road is of vital importance to a highway engineer and this is the reason that we have come up with a superior quality range of automatic road unevenness recorder. An even surface of road is important because of the following factors:

• For a comfortable ride to users
• For minimizing stress to vehicles
• For minimizing fatigue to user
• For determining the vehicles speed
• In the interest of road safety
• For assessing vehicle operating costs
  

Our automatic road unevenness recorders, also known as Bump Integrators or Roughometers are superior to that of conventional feeler gauges or wedges because of the following reasons:

• Quick measuring process
• Hassles free and convenient
• Cost effective
• Ideal for long stretches
• Effective for overall evaluation is a direct consequence of surface irregularities, i.e. the relative vertical movement induced by it between axle and chassis of a vehicle.
• Standardized method that has unvarying characteristics
  

Available in the form of single wheeled trailer, these recorders give quantitative integrated evaluation of surface irregularities on an electronic counter. The specifics of this range are mentioned below:

• Accessories:
• Trailer of single wheel with a pneumatic tyres mounted on a chasis over which an
• Integrating device is fitted over the chasis
• Penal board fitted with 2 sets of electronic counters (for counting the unevenness index value)
• Specifications:
• Operating speed: 30 ±½ Km/Hr
• Towing operation: By a vehicle, usually a jeep
• Usage:
• For assessing the degree of surface finish and recording surface irregularities of highways and runways
• For determining riding quality of the road/runway pavement
• The records so obtained can be immediately attended to for rectification
• These can also be studied for judgment and decision in classifying pavement surfaces by the authorities for serviceability of the pavement and stage for repair or upgrading
• For evaluating the performance of the specifications adopted for roads and runways and the developments of unevenness with age and under traffic
• Advantages
• Low maintenance cost of pavement and vehicles
• Increase in the load carrying capacity of the vehicle
• Prolonged the working life of the vehicles and the driver
  

The automatic road unevenness recorders that we manufacture are used for setting the standards and to test and record road unevenness, These devices help in quantitative integrated evaluation of surface irregularities or surface unevenness within a road section on board in a prompt manner.

We design and develop an axle mounted roughness measuring device that is essentially the known as an integrating unit provided in the ARUR machine.
 

• Accessories
• Integrator unit (fitted in the dicky of the vehicle which is Ambassador / Tata Sumo)
• Distance-measuring device with pulse generator (fitted in the front through vehicle gearbox and instrument board fitted with counters, switches)
• Reduction gearbox (For distance indication after every 1 -meter run of the road length)
• Cables
• Panel board (fitted with two sets electronic counters)
• Digital meter for unevenness index value (For setting distance value from 10 meters to 9999 meters. It is also used for automatic displaying of UI values (up to 2700 memories) and Data Storage in memory for transfer of data into Computer using RS 232 port. It is available in windows/access compatible format software.
• Specifications:
• Operating speed of the vehicle: is 30+1- 1/2 Km/Hr
• Uses a micro controller containing a micro processor
• Battery: 12 Volts 11 Plate
• Distance section segment size: Adjustable from 50 meters to 9999 meters
• Program memory: Built in to the microprocessor
• Data Memory: EERAM Data Memory which can store up to 2700 segments data (batten backup to remember data)
• Printer errors are reported using a buzzer
• Uses
• Used in Industrial Applications
• For assessing the degree of surface finish or the riding quality of the road/runway pavement
• For recording surface irregularities of highways and runways
• For studying the classification of pavement surfaces by the authorities for serviceability of the pavement and stage for repair or upgrading
• For evaluating the performance of the specifications adopted for roads and runways and the developments of unevenness
• Features
• Helps in assessing and improving the riding quality of pavement
• Gives unevenness index value of pavements
• Data obtained with various units is intercomparable
• Safe and stable in operations
• Durable and dependable
• Compact and versatile

For measuring roughness of roads by keeping in mind the factors of cost, speed, and regular calibration, we have come up with a superior performing range of Merlin roughness measuring machines. MERLIN or called as Machine for Evaluating Roughness using Low-cost Instrumentation, is an easy to operate machine that is designed for use in developing countries.
 
Merlin is used either for direct measurement or for calibration of other instruments like towing wheel bump integrator and vehicle-mounted bump integrator. This machine computes the vertical displacement between the road surface under the probe and the centre point of an imaginary line.
 
Manufactured in as per the standards of IRC: SP16-2004, the accessories offered with this machine are mentioned below:

• Two feet (1.8 meters apart)
• Probe (lies mid-way between the feet) rests on the road surface along the wheel-track

We have in store for our clients, a calibrated range of portable soil impact tester that is used in measuring the impact of the soil. This portable instrument is manufactured in accordance to the industry recommended standards and guidelines, thus making it high performing and durable.

Besides surface roughness, there are two other vital aspects that govern the operating cost of a vehicle. These are horizontal curvature and vertical gradient, which combined with surface roughness, is called geometry of roads. Horizontal curvature is a factor that ascertains consumption of fuel and vertical gradient governs wear and tear of tyres and certain spare parts.
 
To find out and record vertical gradient of highways, we have come up with a vertical profile meter that is quicker and more accurate in all terms. Widely used in assessing and improving the vertical profile of roads, this machine is fitted in a car or suitable vehicle for a quantitative measurement.
 
Following are the specifics of this range:

• Features
• On board measurement
• Fast and accurate measurement
• Cumulative count of plus and minus gradient
• Gradient count displayed on separate electronic counters
• Display of distance on separate electronic counter after 20 meter of length traveled
• Specifications
• Gradient measurement up to ±18%
• 12 Volt battery of vehicle of the vehicle
• Advantages
• Timely improvisation of vertical gradient of roads
• Less Fuel Consumption
• Lesser wear and tear of tyres and other spare parts
• Increase in the efficiency of the vehicle
• Saving of energy and foreign exchange
• Less operating cost to the vehicle operators
• Less traveling time and increase safety

We offer our clients with a qualitative range of pavement core drilling machines that is extensively used for conducting field studies. This machine is driven by Greaves air-cooled diesel engine and is thus known for its stability and dependability in harsh conditions.
 
Offered in the model 5520, the specifics of this range are mentioned below:

• Parts of the drill
• Water pump (for circulating water for cooling)
• Gear reduction
• Suitable arrangement for hand feeding the core bit
• Drill is mounted on a suitable trolley having three wheels with two jacking screws
• Atowing hook (for easy transportation of the drill)
• Specifications
• Sizes: 50mm to 150mm dia
• Core Drilling Samples: Up to the length of 700mm depth
• Developing 5 HP at 3000 rpm (BS5514:1987 rating)
• Salient Features
• Safe to use
• Stable in operations
• Dependable because of longer functionality
• Compact design
• Versatile
• Easy to transport by towing with a vehicle