Elt-200  China  in   Bien Hoa Viet Nam   gear tooth coupling  price  High  in   Ouagadougou Burkina Faso   helical flexible shaft coupling sales  Efficieny Low Energy Roots Blower with top quality lowest price

We – EPG Group the greatest couplings and gears manufacturing unit in China with 5 various branches. For far more details: Cell/whatsapp/telegram/Kakao us at: 0086-13083988828 /

We make all varieties of roots blower, centrifugal blower, Our Main items are as below:

Kind Diameter Fee of circulation Pressure
ESR-MJ(Intense Type) Φ50~Φ300mm .5~140m³/min 9.8KPa~98.8Kpa
ESR(Ordinary Type) Φ50~Φ350mm .five~140m³/min nine.8KPa~78.4Kpa
ESR-H(High-stress Type) Φ50~Φ350mm .7~160m³/min 58.8KPa~ninety eight.8Kpa
ESR-V(Vacuum Pump) Φ50~Φ350mm .five~160m³/min nine.8KPa~fifty three.3Kpa
EL Series Φ200~Φ600mm twenty.three~750m³/min 9.8KPa~fifty eight.8Kpa
Multistage Centrifugal Blower
or C-Series
Φ250~Φ500mm 50~500m³/min 9.8KPa~98Kpa
ERR-ERG Kind Φ250~Φ500mm 120~420m³/min nine.8KPa~98.8Kpa

The functioning principle of the three-blade roots blower: two three-lobed rotors are organized in the cavity, and the
suction port and the discharge port are opened on the two sides of the cavity. By means of the action of a pair of
synchronous gears, the two rotors rotate in opposite instructions and Relying on the mutual engagement of the two
rotors, the suction port and the discharge port are isolated, and the gasoline in the chamber is pushed to achieve the
function of blowing.

Function of our roots blower:
1. Huge adjustment of the air quantity
two. Low Sounds
three. High efficiency
4. Lower vitality cosumption
5. Prolonged time daily life
6. Reliable running, easy maintenance,tiny footprint

The parameters of our roots blower:

Kind Ratary Pace
Pressure Increase
Shaft Energy
Motor Device Maximn
ESR-50 1100-2120 nine.8-58.8 .65-two.fifty eight .3-three.fifty four .seventy five-four 128-158
ESR-sixty five 1100-2130 nine.eight-58.eight .ninety four-3.66 .38-4.46 .75-5.five one hundred fifty five-185
ESR-80 1140-1900 9.eight-58.8 2.34-five.forty three one.04-7.42 2.2-11 a hundred and fifty five-277
ESR-100 1060-1980 9.eight-fifty eight.8 4.fifty seven-nine.05 1.35-twelve.fifteen three-fifteen 309-377
ESR-one hundred twenty five 980-1850 nine.eight-58.eight 5.35-12.four 1.65-five.19 five.five-18.5 408-451
ESR-125C 970-1830 9.8-58.eight 7.five-seventeen.fifty seven three.two-18.5 4-22 408-451
ESR-one hundred fifty 810-1730 9.eight-fifty eight.8 10.37-27.15 three.eighty four-forty.eighty two 7.five-45 688-848
ESR-a hundred seventy five 970-1520 9.8-fifty eight.8 19.65-36.sixty five 7.two-forty five.95 eleven-fifty five 980-1080
ESR-200B 740-1450 nine.8-58.eight 19.sixty five-44.eight 10.15-60.44 15-75 1272-1546
ESR-200 810-1480 nine.8-58.8 27.65-fifty nine.two 8.05-80,twelve fifteen-90 1272-1546
ESR-250B 1100-1480 nine.8-58.8 54.seventy seven-seventy seven.55 19.97-ninety.ninety seven 30-a hundred and ten 1490-2454
ESR-250 990-1480 nine.eight-58.8 61.four-97.fifty two 20.one-117.three 30-132 1490-2454
ESR-300 990-1480 9.8-58.eight 87.1-138.1 26.4-167.eight 37-185 3326-3446
ESR-350 730-1480 nine.8-fifty eight.8 seventy eight.41-177.31   fifty five-250  
ESR-50H 1230-2120 63.7-98 .forty five-two.02 two.05-6.12 three-7.five a hundred and sixty–a hundred and seventy
ESR-65H 1240-2130 sixty three.seven-ninety eight .seventy eight-2.fifty three two.89-seven.55 4-eleven 198-230
ESR-80H 1140-1900 63.7-ninety eight 1.eighty two-four.fifty five four.09-ten.one five.five-fifteen 316-326
ESR-100H 1060-1980 63.7-98 2.sixty five-eight.06 six.36-17.2 7.five-22 398-459
ESR-125H 980-1850 63.seven-98 4.sixty four-11.23 8.92-24.2 11-30 544-630
ESR-150H 810-1730 sixty three.seven-ninety eight 9.53-25.seventy six seventeen.sixteen-sixty five eighteen.five-seventy five 752-1571
ESR-200H 810-1480 sixty three.7-98 twenty five.34-fifty six.92 forty two.34-one hundred twenty fifty five-132 1426-1934
ESR-250H 990-1480 sixty three.seven-ninety eight fifty eight-ninety three.7 83.2-205 ninety-220 2980-3468
ESR300H 990-1480 sixty three.7-98 86.nine-134.1 114.seven-270 132-280 3476-3998
ERF-245 650-980 9.eight-98 47.5-97.4 sixteen-183 18.5-200 3630-3690
ERF-250 650-980 nine.eight-ninety eight 61.six-one hundred twenty.four 19-227 22-250 4450-4500
ERF-290 650-980 9.8-78.4 92.3-128 22-213 30-250 4890-4710
ERF-295 650-980 9.8-seventy eight.4 97.three-152.five 23-227 30-250 4890-4880
ERF-297 650-980 nine.eight-78.4 87.five-167.6 26-249 thirty-280 5330-5520
ERF-300 650-980 nine.8-78.four one zero one.5-188.7 29-278 37-315 5330-5520
ERF-350 650-980 nine.8-78.four 126-224.9 34-249 45-280 5210-6470
ERG-three hundred 590-730 nine.eight-98 128.three-196 38-362 forty five-four hundred 9440-15710
ERG-350 590-730 nine.8-98 159.3-231.six forty three-420 fifty five-450 9700-1571
ERG-four hundred 590-730 nine.8-83.3 203.1-290.9 52-449 75-500 10090-11390
ERG-445 590-730 nine.8-seventy three.five 229.seven-327.eight fifty eight-477 seventy five-560 10600-12230
ERG-450 590-730 nine.eight-seventy three.five 262.four-366.2 sixty four-496 seventy five-560 10600-12230
ERG-500 590-730 nine.eight-63.7 327.four-452.4 78-529 ninety-560 12790-14620
ERF-240-V 650-980 -nine.8- -49 38.1-78 thirteen-seventy six eighteen.5-90 3420-3285
ERF-245-V 650-980 -9.8- -forty nine 47.5-97.four 16-95 22-one hundred ten 3425-3360
ERF-250-V 650-980 -9.8- -forty nine 63-one hundred twenty 19-117 22-132 3910-3830
ERF-290-V 650-980 -nine.eight- -49 72.six-one hundred forty four 22-136 30-160 4415-4270
ERF-295-V 650-980 -nine.eight- -forty nine 76.six-152 23-145 30-160 4425-4485
ERF-297-V 650-980 -9.eight- -forty nine eighty four.three-166.eight 26-a hundred and sixty thirty-one hundred eighty 5000-4980
ERF-300-V 650-980 -nine.eight- -49 ninety seven-192 29-178 37-200 5000-4980
ERF-350-V 650-980 -nine.eight- -forty nine 116-225 34-209 forty five-250 5400-5700
ERG-300V 590-730 -nine.eight- -forty nine 133-193 38-184 forty five-220 7800-9100
ERG-350V 590-730 -nine.eight- -forty nine 163-231 43-216 fifty five-250 9500-9470
ERG-400V 590-730 -nine.eight- -forty nine 199-290 52-269 75-315 9900-10130
ERG-445V 590-730 -9.8- -forty nine 224.8-326.9 fifty eight-303 75-355 9900-10130
ERG-450V 590-730 -9.eight- -49 255-365 sixty four-335 seventy five-four hundred 11230-11300
ERG-500V 590-730 -9.eight- -49 314-452 78-412 132-450 13630-13850
ERF-245W 650-980 -thirteen.three- -53.3 53.5-a hundred and one 21.5-102 thirty-110 3630-3360
ERF-250W 650-980 -13.three- -fifty three.three sixty nine-127 26.five-127 30-160 3985-4115
ERF-290W 650-980 -13.three- -fifty three.3 eighty two.6-150 30.5-149 37-185 4340-4580
ERF-295W 650-980 -thirteen.3- -53.three 87-158 32-158 37-185 4440-4580
ERF-297W 650-980 -thirteen.3- -53.3 ninety five-174 36-174 forty five-200 5230-5130
ERF-300W 650-980 -13.3- -53.3 109-195 40-193 55-220 5230-5130
ERF-350W 650-980 -thirteen.three- -fifty three.3 129-230 50-230 75-250 5840-5670
ERG-300W 590-730 -13.3- -fifty three.3 142-197 52-201 75-220 9100-9000
ERF-350W 590-730 -13.three- -53.three 168-234.4 59-235.five 75-280 9500-9600
ERG-400W 590-730 -13.three- -fifty three.3 220-276.6 seventy one-292 90-315 9900-10130
ERG-445W 590-730 -thirteen.3- -fifty three.3 244-294.six eighty two-331 ninety-400 11230-11300
ERG450W 590-730 -13.three- -fifty three.3 275-368.five ninety one-366 one hundred ten-400 11230-11300
650-980 98-196 64.8-112 135-355 a hundred and sixty-four hundred 8700-8600
650-980 ninety eight-196 eighty.8-139 167-439 185-five hundred 9200-9100
ETRF-three hundred
650-980 ninety eight-176.four 102-174 206-497 250-560 10320-10500
650-980 98-137.two 124-207 241-473 280-560 10700-11110
ETRG-four hundred
590-740 98-176.4 205-273 380-773 450-900 21350-24200
590-740 ninety eight-176.4 263-428 476-955 560-one thousand 24200-27600
650-980 -53.3–80 seventy two-121 seventy five.6-121 90-one hundred sixty 6100-6470
650-980 -53.three–eighty ninety three.8-154 ninety nine.five-186 110-220 7000-6400
650-980 -53.3–eighty 116-189 one hundred fifteen-220 132-250 7750-7760
EL81WD 580-980 nine.eight-fifty eight.8 fifty four.two-130 eighteen-151 forty five-185 3595
EL82WDB 580-980 nine.8-58.eight seventy two.8-161 22-191 forty five-220 3860
EL83WDA 580-980 9.8-58.nine 101-213 28.five-202 forty five-220 4300
EL84WDA 580-980 nine.eight-58.8 129-267 35.4-252 forty five-280 4720
EL93WDA 580-730 9.8-49 230-329 fifty six.four-311 seventy five-355 7765
EL94WDA 580-730 nine.8-49 263-373 64-353 75-400 8130
EL95WDA 490-580 9.eight-fifty eight.eight 308-434 eighty one.four-414 ninety-450 11500
EL96WDA 580 58.eight 381 497 560 11500
E397WN a thousand-1650 40 five-9      
E408WN 870-1650 40 ten-22      
E517WN 980-1580 forty twenty-30      
E520WN 930-1550 40 24-forty five      
E607WN 750-1250 forty 45-76      
E610WN 750-1250 40 seventy five-130      

Spare parts and construction of our roots blower:

Package of our Roots Blower

Pack into iron scenario, two layer,blower human body and motor in reduced layer, inlet/out silencer and so on in higher layer

Roots blower pack method same as iron circumstance, just modify to Fumigation Free Plywood Circumstance

Our factory is a expert company of Roots blowers which has over twenty years’ experience in machinery
manufacturing. It is found in Xihu (West Lake) Dis. East Industrial Park, fifty kilometers to the east of Shan EPT provincial
cash— HangZhou. Our organization also has handy site visitors transportation, as it is fifteen kilometers absent from
Diaozhen City station of HangZhou-HangZhou expressway, and thirty kilometers absent from East HangZhou station of
ZheJiang -ZheJiang expressway.The major merchandise of our company is ESR -kind Roots Blower. The roots
vacuum pump is a new variety of substantial-efficiency roots blower, which is developed independently based mostly on the
domestic and international superior systems. Many patented technologies have been adopted on Roots
Blower, and thus we have manufactured substantial results in energy conservation and noise reduction, and so forth.. So far, our
firm has invested a lot more than 30,000,000 RMB to introduce such sophisticated expert equipment as
horizontal machining middle, vertical machining middle, two-way CNC surface planer, CNC lathe, CNC milling
equipment, CNC planer, plane grinder, cylindrical grinding machine, and three coordinates screening machine.
Apart from, we have taken a variety of actions to standardize the approach flow these kinds of as working and cooperating
with several scientific research units, schools and universities at home and overseas. We also continually try to
take in and increase the domestic innovative generation systems, so as to market the upgrading and
optimization of the item and make the product high quality achieve the superior stage at home and abroad.
ESR -kind Roots Blower involves a number of sequence such as 3-leaves Sort, Two-leaves Type and Centrifugal
Type,which can be even more divided to hundreds of varieties. The products are extensively utilised in sewage treatment method,
pneumatic conveying,vacuum packaging, aquaculture, meals processing, EPT power, petrochemical, cement,
mining and other industries. Our products have this kind of rewards as low noise, strength preserving, secure high quality,
and prolonged provider existence, and many others.. With the product sales outlets throughout the domestic funds towns, our goods market properly all
above the nation, and have been exported to North The usa,Russia, Malaysia, Indonesia, Vietnam, South Africa
and some other nations around the world. Obtaining received the ISO9001 Global Quality Technique Certification, we have
set up and enhanced the top quality assurance of the goods designing, production, and installation.
From the procedure of design, investigation and development to the completed goods, we have received the whole
method controlled independently, hence providing the complete foundation and trustworthiness guarantee for the goods security
and sturdiness. Possessing a perfect revenue network and following-sales service, we offer our customers with larger-
top quality and much more productive services.All employees of our organization sincerely welcome the broad masses of close friends to
manual, and negotiate enterprise with us.

Our Roots Blower Workshop

         Doosn Horzitonal Equipment Center

The Software of the Roots Blower

Maintenance and inspection
(one) Verify all fasteners and locating pins circumstances whether they are loosening.
(2) Constantly check out whether or not the leakage phenomenon of the entire body.
(3) Shell out attention to lubrication, volume of grease and noises when managing,
establish regardless of whether it operates underneath the essential circumstances.
(4) Lubricant & grease: The lubricant is for medium load industrial equipment oil
(quality 220, kinematic viscosity of 198 ~ 242mm2 / s 40ºC, flash stage ≥ 200ºC)
The grease is butter (synthetic lithium grease penetration 220-250, drop level ≥
190ºC). Exchange the lubricant and grease following very first 200 hrs operating, and change
yet again right after a moth running. Afterwards, substitute the lubricant and grease in accordance to the
setting and lubricant (grease) top quality suggest a ideal EPT for 3
(5) Always check out the inlet air filter, thoroughly clean or substitute the filter in time.
(six) Blower overload at times not immediately displayed, so shell out interest to
the ingestion and exhaust force, bearing temperature and the existing boost traits
of motor to determine whether or not the blower functions normally
(seven) Just before disassembling the blower, the assembling relation and dimensions
need to be recorded or measured, make marks on elements to make certain the first
specifications following assembling.
(8) When recently machine or overhaul, the oil tank must be cleaned prior to use
and suggest substitute all grease soon after eight several hours working.

Frequent failure purpose and troubleshooting

No Failure Feasible factors Elimination methods
1 Friction
between the
(one) Impurities on the impeller,
ensuing in the gap is also small
(2) Gear wear, ensuing in a
massive backlash
(three) The gear is not well fastened,
can not maintain the impeller
(4) Bearing dress in resulting in
clearance increasing.
(one) Take away filth and examine
regardless of whether there is damage elements
(two) Alter the gear hole, replace
the gears if the gear backlash is
increased than the common 30% to
(three)Re-assemble the gears, preserve
the taper make contact with spot is to 75%
(4)Exchange the bearing
two Collision
impeller and
wall, the
impeller best
and casing
(one) Set up gap is not correct
(2) running stress is as well
large, exceeding the specified
(3) Working temperature is also high
(four) Casing or foundation deformation,
positioning enthusiast failure
(five) Bearing axial area is not very good
(1) Adjust the hole
(2) Recognize triggers of
overloading, diminished the pressure
to the specified worth
(3) Check the installation
precision and minimize the pipe
(four) Examine and mend bearings,
and to ensure the clearance
three Temperature
way too substantial
(one) Oil in tank is as well much, as well
thick or also dirty
(2) Filter or silencer is blocked
(3)The force is greater than
the specified benefit
(4)Too much wear of the
impeller, huge hole
(5)Bad air flow, indoor
temperature is high, ensuing in
inlet air’s large temperature
(six) The rotating pace is as well lower,end result in the belt slipping.
(1)Lessen the oil stage or count on
(two)Remove of blocking objects
(three)Minimizing the strain via
the blower
(4)Restore its clearance
(5)Open vents to reduce space
(6) Increase pace to prevent the
belt slipping.
four Insufficient
(1) The inlet filter is blocked
(two) Impeller put on and the gap
boosts also a lot
(3) Belt slipping
(4) Huge imports strain decline
(five) Pipeline air flow leakage
(1) Cleanse the filter dust and
(two) Restore the gap
(3)Tighten the belt and increase
the amount of belts
(4)Modify the inlet pressure to the
specified worth
(5) Check out and repair the pipeline
5 Oil leaking or
oil leaking
into the enclosure
(1)High tank placement trigger
leakage from the discharge port
(two) Seal wear, resulting in shaft oil spills
(three) The force is larger than
the specified price

(1)Minimize the oil level
(two)Substitute the seals
(three)Very clear the air vents, 2mm diameter faucet is fastened in the
middle chamber, open up the faucet
beneath the wall
6 Abnormal
vibration and
(1)Bearing clearance exceeds the
specified price or bearing wear
(2) The equipment backlash is as well
large, not in a limited mounted
(three) The international objects and dust
induced by the impeller and the
impeller, the impeller and the
housing collision
(4) the impeller shaft
deformation triggered the collision
caused by overload,
(5) Friction in between the impeller
and the inlet housing caused by
(6) Unbalance of the impeller
caused by fouling or overseas
(seven) Anchor bolts or other
fasteners are loosened
(one)Exchange bearings or bearing
(2)Reassemble gear and ensure
(3)Cleaning blower, check the
circumstance is destroyed
(4)Check the back again strain, check
the wheel and change hole
(5)Examine the filter and again
stress, boost the gap
among the impeller inlet and the
(6)Cleanse the impeller and the
casing, to ensure that the impeller
clearance perform
(seven) Tighten the anchor bolts and
leveling the foundation.
seven Motor
(one)In contrast with the necessary
stress, the pressure big difference
is large that the back force or
the inlet stress is high
(two) Compared with the
gear needs, blower
flow is as well massive, so its stress
will increase
(3)Inlet filter is blocked, or outlet
pipe is obstructed or blocked
(4) Collusion or friction (caught)
rotating parts
(5) The oil level is too high
(6) Slender V-belt is overheat,
vibration is as well massive, or pulley
is as well small
(one) Decrease the strain to the
specified benefit
(two) Exhaust the extra gas into
the ambiance or minimize the
blower velocity
(three) Get rid of the obstructions
(four)Quickly shut down, examine
the reason
(5) Change the oil to the appropriate
(six) Verify the belt tension, and
changed it with huge diameter

Our Support

1. Pre market service                                                                              2. After market service                                          
a. recommend the ideal model                                             c. on-line technological support,                                                                                   
b. manufacturing unit tour                                                                              d. total existence spare areas and techinical help


12 months gurantee for our roots blowers

/ The use of first tools manufacturer’s (OEM) part quantities or trademarks , e.g. CASE® and John Deere® are for reference needs only and for indicating solution use and compatibility. Our company and the shown EPT parts contained herein are not sponsored, accepted, or produced by the OEM. /

Elt-200  China  in   Bien Hoa Viet Nam   gear tooth coupling  price  High  in   Ouagadougou Burkina Faso   helical flexible shaft coupling sales  Efficieny Low Energy Roots Blower with top quality lowest price