Centrifugal Blowers, Centrifugal Fans, Centrifugal Air Blowers, Industrial Blowers, ID Fans, FD Fans, SA Fans, DIDW Fans, Boiler ID FD Fans, Tube Axial Fans, Tube Axial Blowers, Heavy Duty Industrial Blowers, High Pressure Blowers, Backward Curve Blowers, IS Testing Blowers, Manufacturer, Supplier, Exporter, Pune, Maharashtra, India

Manufacturing High Efficient And Heavy Duty Fans And Blowers:

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Electromech Technical Services are manufacturing heavy duty centrifugal fans and blowers. Requirements made of heavy duty fans vary from industry to industry. Best Quality is achieved by proper Quality checks right from material purchasing to final testing of air blowers. Our complete range of centrifugal air blowers confirms to Bureau of Indian Standard (BIS) specifications and relevant test certificate are provided at the time of final inspection and testing of blower.

Centrifugal Blowers and Industrial Blowers are same is in a designed and supplied by Electromech technical services are highly efficient, proven, reliable & sturdy. Electromech Technical services is master in designing and manufacturing customized fans and blowers Saving energy and environmental protection are two requirements which fans builders must also need. Fans handling hot gases are therefore insulated and if necessary installed in ventilated noise reduction booths and not just for reason relating to the process, but in order to reduce the radiation of heat and noise Electromech Technical Services manufacturing and designing facilities, we supply a wide range of fans and blowers that are used for controlling and reducing pollution in diverse industries. We, at Pune, India manufacturers and supplies blowers, centrifugal blower, tube axial fan, high pressure fans & blowers, bifurcated tube axial fan, tubular centrifugal fan, paint booth fan, furnace fans & blowers, id fan, fd fan, multistage centrifugal fan, boiler fan, airfoil blade fans etc.

Our fans and blowers act as perfect exhaust equipment for fume, smoke, dust, corrosive atmosphere in furnaces, boiler, ovens and cement plants. They are used for the purpose of pneumatic conveying, high air volume applications and exhaust processes in diverse industrial applications such as steel plants, cement plants, power plants, pulp and paper mills, sugar mills, waste water treatments, mines, process plants and others.

Fans and blowers provide air for ventilation and industrial process requirements. Fans generate a pressure to move air (or gases) against a resistance caused by ducts, dampers, or other components in a fan system. The fan rotor receives energy from a rotating shaft and transmits it to the air Fan and blower selection depends on the volume flow rate, pressure, type of material handled, space limitations, and efficiency. Fan efficiencies differ from design to design and also by types. Typical ranges of fan efficiencies are given in the table.

Fan Testing : Fan are tested for air performance as per standard IS 4894, BS 848

Type of fan	Peak Efficiency Range
Centrifugal Fan
Airfoil, backward curved/inclined	79-83
Modified radial	72-79
Radial	69-75
Pressure blower	58-68
Forward curved	60-65

• High Volume Limit Load Blowers (SISW)
• High Volume Limit Load Blowers (DIDW)
• Medium Pressure Blower (Backward curve blade/ Self cleaning blade/ Straight radial blade)
• Low Pressure Blower
• High Pressure Blower
• ID/FD Fan
• Axial Fan
• Furance Fan

1 Fans can be designed base upon dynamic Load factor and site condition considering Altitude of the factory
2. Electromech Technical services. Impellers are Dynamically Balanced.
3. Easy Maintainability
4. Low Power Consumption
5. High Efficiency
6. Customized Drive arrangement
7. Capacity and Pressure is tested according to the Indian standard Specification No:-4894- 1968.
8. Providing Inlet / Outlet Damper
9. Drain Plug and Inspection window provided

Electromech Technical Services High Pressure Centrifugal Blowers Suitable for material handling combustion and other various applications. Efficiency Ranging From 70% tO 80%. 2,50,0000 m3/hr. Pressure 1500 mm WG Single Stage.

Following test certificates are provided along with Blower
1. Impeller Wheel Balancing Certificate.
2. Operating characteristics Curve showing the blower performance at different values of static pressure.
3. Blower noise level at operating point.
4. Statically and Dynamically balance as per SO-G 6.3 Std specification .

Housing.
The housing forms the smooth interior of the fan due to the rolled scroll method of manufacture. The housing consists of MS sheets of welded construction stiffed with MS sheets of welded construction stiffed with MS angles wherever required . The housing has on its front side inlet a cover plate to facilitate easy fixing and removal of impeller from shaft. Inlet and outlet flanges are provided on the housing to facilitate easy connection of the fan to the system.

Impeller.
The Impeller have deep, wide blades most efficient and very rigid. The rotors are of welded construction. The material used is usually steel plate. Rotors are statically and dynamically balanced. Cast iron hub is bolted to the rotor.

Drive. Single Inlet, Single Eidth fan from size 2" diameter to 36½" diameter can be directly driven with thye rotor overhung on the motor shaft. All other SISW and DIDW fans can be operated by direct drive through flexible coupling.

Bearings.
Electromech Technical Services fan bearing are of several types for various classes of work, but generally of Double Row self aligning type ball bearings of adequate size.

P	1	2	3	4	6	8	1	1	1	2	2	2	3	3	4	4	5
M	Flow in Cubic Feet Per Minute at NTP
0	7	4
0	1	8	5	4
1	3	1	1	8	6	3	2	2	1
2	6	3	2	1	1	6	5	4	3	3
3	8	4	3	2	1	1	1	7	5	4	3
5	1	7	5	4	3	1	1	1	9	7	6	5
7	1	1	7	5	4	3	2	2	1	1	9	8	7
1	2	1	9	7	5	4	3	2	2	1	1	1	1	9
1	2	1	1	9	6	5	4	3	2	2	1	1	1	1	9
1	3	2	1	1	8	6	5	4	3	2	2	1	1	1	1
2	4	2	1	1	1	7	6	5	4	3	2	2	2	1	1	1	1

Precise determination of air-flow and required outlet pressure are most important in proper selection of fan type and size. The air-flow required depends on the process requirements; normally determined from heat transfer rates, or combustion air or flue gas quantity to be handled. System pressure requirement is usually more difficult to compute or predict. Detailed analysis should be carried out to determine pressure drop across the length, bends, contractions and expansions in the ducting system, pressure drop across filters, drop in branch lines, etc. These pressure drops should be added to any fixed pressure required by the process (in the case of ventilation fans there is no fixed pressure requirement). Frequently, a very conservative approach is adopted allocating large safety margins, resulting in over-sized fans which operate at flow rates much below their design values and, consequently, at very poor efficiency.

Once the system flow and pressure requirements are determined, the fan and impeller type are then selected. For best results, values should be obtained from the manufacturer for specific fans and impellers. The choice of fan type for a given application depends on the magnitudes of required flow and static pressure. For a given fan type, the selection of the appropriate impeller depends additionally on rotational speed. Speed of operation varies with the application. High speed small units are generally more economical because of their higher hydraulic efficiency and relatively low cost. However, at low pressure ratios, large, low-speed units are preferable.

The forward curve centrifugal fan travels at a relatively slow speed and generally is used for producing high volumes at low static pressure.
(Available four different models with various sizes)
Very Low Pressure High Volume
(Range 1000 - 10,00,000 CMH, Pressure 40 - 200 mm wg)

Backward inclined fans travel about twice the speed of the forward curved fan as previously indicated by the velocity vector diagram. The normal selection range of the backward inclined fan is approximately 40-85% of wide open CMH Maximum static efficiency of about 80% generally occurs close to the edge of its normal operating range. Generally, the larger the fan the more efficient for a given selection.

The magnitude of surge for a BI fan is greater than for an FC fan. Advantages of the BI fan are higher efficiency and nonoverloading power curve. The power curve generally reaches a maximum in the middle of the normal operating range, thus overloading is normally not a problem.Inherently stronger design makes it suitable for higher static pressure operation.
( Available Eight different models with various sizes)
1. Low pressure High Volume - ( Range 1000- 850000CMH, Pressure 150 - 400 MM WG)
2. Medium pressure Medium Volume - ( Range 300- 900000CMH, Pressure 150 - 900 MM WG)
3. High pressure Low Volume - ( Range 100- 900000CMH, Pressure 300 - 1600 MM WG)

(Available two different models with various size)
High Pressure High Volume for low noise level
(Range 5000 - 6,00,000 CMH , Pressure 50 -200 MMWG)

ELECtrOMECH TECHNICAL SERVICES Manufacturing High Pressure Blowers lead the industry high efficient, stable performance and overall customer value. High pressure blower are used in a variety of processes and environmental applications where Low Volume and high pressure are required.

Electromech Technical services has a huge experience in manufacturing Induce Draft and Force Draft Blowers. We are continuously supply the ID Fan and FD Fan boilers manufacturer along with OEM'S. We also supply to the end users and offer our consultancy in selection of appropriate ID Fans and FD Fans. Special Care is taken in manufacturing of the impeller (rotating part). All the impellers are statically and dynamically balanced on machine. Balancing and fan performance certificate is provided along with the blower. Fan are tested for air performance as per standard IS 4894, BS 848 Some of the Induced Draft Fan and Forced Draft Fan runs at an efficiency of as high as 90%.

Features of "Electromech Technical Services Make" ID Fans
1 Fans can be designed base upon dynamic Load factor and site condition considering Altitude of the factory
2. Electromech Technical services. Impellers are Dynamically Balanced.
3. Easy Maintainability
4. Low Power Consumption
5. High Efficiency
6. Customized Drive arrangement
7. Capacity and Pressure is tested according to the Indian standard Specification No : 4894 - 1968.
8. Providing Inlet / Outlet Damper
9. Drain Plug and Inspection window provided

Depending on the fan inlet air temperature id fan drive is chosen. It could be either
1. Direct Drive Blower / Fan - Suitable for ambient temperature.
2. Direct Coupled Blower / Fan - Suitable for high air temp.
3. Belt Driven Blower / Fan - Suitable for higher air temp.

Boilers Fans - ID,FD & SA Fans manufactured by us.
Efficiency Range from 70% to 82% For 1 TPH to 55 TPH Steam Boilers.

Tube axial fans are used where high volume of air and power consumption is delivered at substantialy low pressure. Typical application of these fans is in factories and HVAC application. Electromech Techinical Services make tube axial fan impellers are made out of aluminium casting. Special care is taken during machining and Balancing of fans. This ensures smooth operation with reduced noise and vibration. Motor mounting can be direct or pulley drive based on customers requirement. Along with our standard tube axial blowers /fans, we also manufacture axial blowers for special application such as at high temperature and with S.S. Fan and body.

Wheel Dia : 300 to 2000 mm
Capacity : 1600 to 120000 cfm
Pressure : 5 to 50 mm wg

Standard Catalogue for Tube Axial Fan
FAN Size		Speed		Motor Capacity (H.P.)		Air Delivery in CFM at static pressure in mm of wg. As given below
Inches	mm		rpm		Direct Drive		V-Belt Drive	Free Delivery	5mm	10mm	15mm	20mm	25mm	35mm
12	305		2880		0.5		0.5	1600	1400	1200	1000	700	-	-
			2880		0.5		0.5	1900	1500	1350	1200	1000	600	-
15	380		1420		0.25		0.25	2050	1950	1600	1450	950	-	-
18	455		1420		0.5		0.5	3050	2850	2600	2250	1950	-	-
			2880		1.5		1.5	5500	4500	3500	3000	2500	2000	1800
24	610		1420		1		1.5	6500	6400	5500	4650	3200	-	-
27.5	700		1420		2		3	10600	10500	10200	8200	7600	5850	-
31.5	800		940		1		1.5	10500	9350	7600	5850	-	-	-
			1420		5		5	16000	15400	14600	13450	12300	11400	8150
36	915		940		3		3	19500	17500	15400	12000	10000	-	-
			1420		7.5		7.5	26000	24500	23100	21600	20000	19000	17500
39.5	1000		940		3		3	21100	19300	18150	15800	13450	-	-
47.5	1200		720		5		5	26600	25200	22800	17600	-	-	-
	1500		940		7.5		7.5	35700	33900	32800	31000	29200	26300	18700

Plug fans are mainly used for furnaces, ovens for dry air circulation. We manufacture plug fans having capacity above 25000 cfm against the temperature upto 800 deg c and suitable for more working life.

Qulity :
We checked and satisfactory trials ensure the quality of equipment's before supply the equipments. Electromech always has been a priority to give the service after sales We are providing following certificates of the equipments
• Internal Inspection Report
• Quality Assurance plan
• Geared Motor Routine Test Certificate.
• trial certificates
• Raw material Test Certificates etc.

Quality Control and Inspection
All the manufacturing , Fabrication and machining of the equipments is carried out as per relevant Indian / International standard. The quality control personal check every product as per relevant Quality Assurance plans procedures before dispatched.
We provide excellent reliable sales and service.