Dynamometers, Powder Dynamometer, Eddy Current Dynamometers, Water Cooled Powder Dynamometers, Pneumatic Dynamometer, Mumbai, India

DYNAMOMETERS

Eddy Current Dynamometers

Powder Dynamometers

AC Dynamometers

Pneumatic Dynamometers

1. Dynamometers

Dynamometer is loading device for performance & endurance test of Engines, Motors, Gear boxes, Cordon shaft, Starter motors, Alternators, bearings, all types of rotating machines, etc & other mechanical transmission devices. Our manufacturing range includes Eddy Current Dynamometers, Powder Dynamometers. AC regenrative Dynamometers & Tandom Pneumatic Dynamometers,Test Benches & Test rig

a) EDDY CURRENT DYNAMOMETERS
Available in self-cooled, water-cooled & coolant-cooled models

EDDY CURRENT DYNAMOMETER SELF COOLED
Simple eddy current adjustable dynamometer, is a totally new concept in dynamic load system for accurate testing applications of all type of electric motors, engines and other rotating machinery's.
HP rating upto 100 HP

Power rating : 0.18 KW to 55 KW.
Max Torque : 37 KgM (370 Nm)
Max Speed : 2,000 RPM
Cooling : Self Cooled
Speed Sensor : AC Tachogenerartor
Speed Indication : Digital Indicator
Torque Sensor : Spring Balance with Pulley & rope, Load cell or Rotary Torque Sensor
Torque Indicator : Spring Balance OR Digital Indicator with Zero, Span, Calibration presets.

EDDY CURRENT DYNAMOMETER, WATER / COOLANT COOLED.

The medium of torque transmission in Eddy Current dynamometers is a controlled magnetic field generated by a stationery coil. The developed torque in these dynamometers diminishes with reduction in speed with no torque developed at zero speed. These dynamometers are ideal for testing engines and motors in the medium to high- speed range and machines with turbo characteristics.

Torque ratings: 0.2 Nm to 4500 Nm,
Power absorption: 20 W to 750 KW,
Speeds: Up to 30,000 rpm depending on the model, Compact, High Torque-to-inertia ratio

Power rating : 0.18 KW to 900 KW.

Max Torque : 400 KgM (4000Nm)

Max Speed : 18000 RPM depends on rating

Water Flow & : Depends on KW rating Pressure

Speed Sensor : AC Tachogenerartor or Proximity with toothed wheel.

Speed Indication : Digital Indicator

Torque Sensor : Load cell or Rotary Torque Sensor.

Torque Indicator : Digital Indicator with Zero, Span, Calibration presets.

Magnetic Particle Brakes & Clutches are popularly known as Powder brakes & clutches. These powder brakes & clutches are manufactured by us in wide range from tiny 0.3 KgM to massive 100 KgM torque range

These are manufactured in self cooled, forced air cooled & water cooled version. Powder brakes & clutches are real torque control device, meaning braking or clutching torque is strictly proportional to excitation current,

The magnetic powder clutch and brake achieves at low control power a high torque being independent from the slip speed. It distinguishes itself by a simple construction, low weight and small required space. Due to this advantage the clutch / brake is used for the solution of many technical problems. For the various applications also appropriate control devices are necessary. By changing the exciting power force, the torque to be transmitted can be adjusted infinitely variable in the range 1:30

The Powder Brakes & Clutches contain, as their name suggests, a magnetic powder. The electrical current passing through the coil generates a magnetic field, which changes the property of the powder, from free flowing condition at no excitation to solid rock condition at full excitation. Thus producing a smooth braking torque through friction between rotor and stator. The Powder Brakes & Clutches produces their rated torque at zero speed. The element to be tested / Clutched, can be loaded at standstill to determine the starting torque.

Salient features
Available in different speed ranges Suitable for loading prime movers that develop torque, gradually increasing with speed or constant torque over mid-to-high speed ranges

PRODUCT HIGHLIGHTS

Very little down time and maintenance.
Same capacity in bi-directional operation.	Low noise-levels. Quiet operation.
Excellent stability.	Direct reversibility of direction.
Better accuracy.	Longer life because of low wear and tear of moving parts.
Easier and smoother load control.	Extremely rugged construction.
Suitable for remote control.	Small and compact.
Instantaneous response to load control, ideally suited for all types of govern in Tests.	Wide range of power and speed.
Excellent mechanical stability

Max Power BHP	Max Torque Nm	Max Speed RPM	Compatibility
4	4.6	14000	35 - 50 cc sprayer engines, FHP motors
25	42	8000	Low capacity governed engines, motorcycle / scooter / moped engines.
40	88	7500	Governed engines up to 15 HP @ 1500 RPM, motorcycle / scooter / moped engines.
100	234	6000	All 3 Cylinder & 4 Cylinder Petrol Engines, 4 Cylinder Diesel Engines, governed engines up to 50 HP@ 1500 RPM, Electric Motors & Gearboxes
140	328	6000	4 Cylinder Petrol & Diesel Engines, governed engines up to 70 HP@ 1500 RPM, Electric Motors & Gearboxes
310	750	4000	Six Cylinder Diesel Engines, governed engines up to 160 HP @ 1500 RPM, Electric Motors & Gearboxes

b) POWDER DYNAMOMETER

Powder dynamometers develop torque on the basis of electro-mechanical principles wherein the torque developed is independent of speed. The braking torque is infinitely adjustable through the medium of fine magnetic powder under the influence of the controlled magnetic field. These dynamometers are ideal for testing motors from zero speed, transmissions and machines demanding high torque at low speeds.

Set torque is fairly stable right down to zero speed
Speeds of operation up to 3000 rpm, depending on the model
Low inertia, dynamically balanced rotors
Low residual torque as specified for each model
Available in water-cooled models

Features:
Torque ratings: 2.5 Nm to 1000 Nm
Power absorption: 250 W to 24 kW
Speed: Up to 4000 rpm depending on the model
Set torque: Stable right down to zero speed
Compact, high torque-to-inertia ratio

Specification:

Power rating : 0.18 KW to 10 KW.

Torque : 0.25 KgM to 1000 KgM

Max Speed : 1500 RPM

Cooling : Self Or Water Cooling

Speed Sensor : AC Tachogeneartor or Proximity with toothed Wheel.

Speed Indication : Digital Indicator

Torque Sensor : Load cell or Rotary Torque Sensor.

Torque Indicator : Digital Indicator with Zero, Span, Calibration presets.

Water Cooled Powder Dynamometers

c ) AC DYNAMOMETER

The energy-efficient AC dynamometers are highly versatile and can operate in both motoring and absorption modes. These dynamometers are ideal for transient studies and for loading from true no-load to stall conditions.

Trunnion mounted or with in-line torque sensor

Features:

Energy-efficient
Fast response and high degree of control stability
Direct measurement of friction / system losses
Ratings up to 750 kW
Inertia and vehicle road-load pattern simulation
Trunnion mounted or with in-line torque sensor

d) PNEUMATIC DYNAMOMETER

Salient Features

Fairly stable set torque right down to zero speed
Speed of operation up to 2000 rpm, depending on the model
Low inertia, dynamically balanced rotors
Low residual torque, as specified for each model
Bi-directional operation
Built-in filter-regulator and electric/pneumatic converter
Built-in filter-regulator and electric/pneumatic converter

e) Test Benches

Motor Test Rigs : For the evaluation of

Automotive motors

Industrial motors
Test rigs are designed to provide a self-contained platform to conduct a comprehensive range of validation tests on motors. They consist of a low-vibration structure on casters, suitably rated application-specific dynamometer such as AC dynamometer or Magnetic

Powder dynamometer, suitable sensors, special fixtures for clamping of different types of motors, coupling arrangement, safety guards and interlocks.

PC-based intelligent control system, integral to the test bench, ensures proper sequencing of tests and recording of data for analysis and outputting various information in the form of tabulated and performance graphs. The automated test sequences can be performed by selecting appropriate set up Menu on the dedicated PC-based control system.

Engine Test Stands

For the evaluation of

Engine Torque v/s Speed Characteristics

Brake Horse Power (BHP)

Frictional Horse Power (FHP)

Indicated Horse Power (IHP)

Fuel consumption at rated torque

Mechanical efficiency

Thermal Efficiency

Air-fuel ratio

Transmission Test Rigs
For the evaluation of
Chassis, Gear boxes, Axles, Shafts, Bearings, Belts, Chains etc.

5. LOAD CELLS

Strain gauge type load cell – a tension transducer for web tension monitoring & controlling is available in various ratings 5 Kg to 1000 Kg.

ASW series of tension sensing load cell are full bridge strain-sensitive, with built-in self-aligning bearings for self adjusting critical vertical as well horizontal level while mounting suitable for dead shaft or live shaft applications. These are manufactured in ratings from 5 Kg to 150 Kg in five sizes, for base or flange mounting.

For ratings beyond 150 Kg, Upto 1000 Kg, these are manufactured in compression& tension type constructions, cater to most of the popular sizes load cells & applications.

All Load Cells are excellent in linearity and repeatability with a nominal output of 1mV/V or 2V/V depending on applications.

6. WEB TENSION CONTROL SYSTEMS
To control unwind, rewind & intermittent section tension control.

Various models are manufactured such as dancer based tension control, Load cell based tension control, Diameter based tension control, ultrasonic sensor based tension control & manual tension / torque control

CENTRE WIND TENSION CONTROLLER
Non contact tension controller for Rewind & Unwind. Compatible with AC / DC & Eddy Current Drives.

CTC - To maintain constant tension thru out diametric build up, with advance taper tension facility to get proper winding & avoid telescoping, core crushing due to internal layer pressure etc. This controller had GD² compensation, Taper, Set tension Potentiometer

7. STATIC CHARGE ELMINATORS

To eliminate static charge from textile yarns, fabrics, plastic films & articles, FBD in pharma machines. Static charge eliminators are available in various models such as Hot bars, Shock less bars, Area ioniserxc , Air ioniser etc.

We manufacture static charge systems upto 30 KV volts at 5 mA current

8. TACHOGENERATOR

Tachogenerator is a device which generates an electrical output directly proportional to the shaft speed. The voltage thus generated is fed to a speedometer for speed measurement and/or used as feed - back signal for controlling the speed of a rotating machine / equipment. In every automatic control system, since the system performance is directly related to the performance it becomes essential that the Tachogenerator must satisfy certain minimum requirements such as:

Linear
The rectified output voltage should be strictly linear with respect to the rotational speed
Output signal
the ripple content in the rectified output signal must be as low as possible
Temperature effect
Variations in ambient temperature should have negligible effect on the TG output
Long-term stability
Instability of output cause due to aging of parts, shift in magnetic circuits etc., should be minimum

Unique features of Tachogenerator
ALINCO permanent magnet in the rotor assembly gives long term stable operation under varying ambient temperature.
Large number of poles (48) results in a high frequency output and hence good dynamic response,
linearity and wide speed control, along with low ripple content in the rectified output.
Rotor and stator assemblies are encapsulated with epoxy resin to prevent any ingress of moistures, dust etc.
AC tachogenerators in 24 or 48 pole constructions with quasi-sinusoidal output of 30/ 50 Volts AC (rms) @ 1500 rpm
Stator assembly is housed in cast iron body to minimize magnetic interaction and consequent losses.
Grease filled, double shielded ball bearings are used for maintenance free operation.
Two mounting options-foot mounted and flange mounted.
Speedometer can be calibrated to suit the customer's requirements.
Compact and rugged construction provides longer life with excellent performance even under severe environments.
If required, TG can be supplied with rectifier unit, for DC operations.
Technical Specifications
Type -Totally enclosed
Class of insulation -B
Voltage - 30V / 50V AC and frequency 600Hz at 1500 rpm
Max. Load Resistance at Output - 600 Ω
No. Of poles - 48
Linearity - 0.5%

9. Control Panels

MCC, PCC & special control panels for various applications in various industries.

3 Drive & 5 Drive control systems or Printing & Lamination industry are manufactured by us.

Brakes & Clutches | Dynamometers | Cerback

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