Two  China  in   Coimbatore India   flexible gear coupling  shop  Stage  in   Nice France   gear type coupling sales  High Pressure Roots Blower  with top quality lowest price

We – EPG Team the most significant couplings and gears manufacturing unit in China with 5 different branches. For more particulars: Mobile/whatsapp/telegram/Kakao us at: 0086-13083988828 /

We make all sorts of roots blower, centrifugal blower, Our Principal goods are as under:

Type Diameter Charge of circulation Stress
ESR-MJ(Intense Type) Φ50~Φ300mm .5~140m³/min nine.8KPa~ninety eight.8Kpa
ESR(Regular Type) Φ50~Φ350mm .five~140m³/min 9.8KPa~seventy eight.4Kpa
ESR-H(High-force Sort) Φ50~Φ350mm .7~160m³/min 58.8KPa~98.8Kpa
ESR-V(Vacuum Pump) Φ50~Φ350mm .five~160m³/min nine.8KPa~53.3Kpa
EL Sequence Φ200~Φ600mm twenty.three~750m³/min 9.8KPa~fifty eight.8Kpa
Multistage Centrifugal Blower
or C-Sequence
Φ250~Φ500mm 50~500m³/min nine.8KPa~98Kpa
ERR-ERG Sort Φ250~Φ500mm a hundred and twenty~420m³/min nine.8KPa~ninety eight.8Kpa

The functioning principle of the 3-blade roots blower: two three-lobed rotors are arranged 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 reverse directions and Relying on the mutual engagement of the two
rotors, the suction port and the discharge port are isolated, and the fuel in the chamber is pushed to achieve the
function of blowing.

Function of our roots blower:
one. Large adjustment of the air volume
two. Lower Noise
3. Higher efficiency
4. Reduced power cosumption
5. Lengthy time life
six. Reputable managing, easy maintenance,tiny footprint

The parameters of our roots blower:

Sort Ratary Pace
Force Increase
Shaft Energy
Motor Unit Maximn
ESR-50 1100-2120 nine.8-58.eight .sixty five-two.fifty eight .three-three.fifty four .75-four 128-158
ESR-65 1100-2130 9.eight-fifty eight.8 .94-three.sixty six .38-four.forty six .seventy five-five.five 155-185
ESR-eighty 1140-1900 nine.8-58.8 two.34-5.43 1.04-seven.forty two 2.2-eleven a hundred and fifty five-277
ESR-100 1060-1980 nine.8-fifty eight.eight 4.fifty seven-nine.05 one.35-12.fifteen 3-15 309-377
ESR-a hundred twenty five 980-1850 9.8-fifty eight.8 5.35-twelve.four one.65-5.19 5.5-18.5 408-451
ESR-125C 970-1830 9.8-58.8 7.5-seventeen.57 three.two-18.five 4-22 408-451
ESR-a hundred and fifty 810-1730 9.8-fifty eight.8 ten.37-27.fifteen three.84-forty.eighty two seven.five-forty five 688-848
ESR-one hundred seventy five 970-1520 9.eight-58.eight 19.65-36.65 7.2-45.95 11-55 980-1080
ESR-200B 740-1450 9.eight-58.8 19.65-forty four.eight 10.15-60.44 15-75 1272-1546
ESR-200 810-1480 9.8-58.eight 27.65-59.2 8.05-80,12 15-ninety 1272-1546
ESR-250B 1100-1480 nine.eight-58.8 54.seventy seven-seventy seven.fifty five 19.97-90.97 thirty-a hundred and ten 1490-2454
ESR-250 990-1480 9.eight-58.eight 61.4-ninety seven.52 thirty-132 1490-2454
ESR-three hundred 990-1480 9.eight-fifty eight.eight 26.four-167.8 37-185 3326-3446
ESR-350 730-1480 nine.eight-fifty eight.eight 78.forty one-177.31   fifty five-250  
ESR-50H 1230-2120 sixty three.7-98 .45-two.02 2.05-six.twelve 3-7.5 160–170
ESR-65H 1240-2130 sixty .78-2.53 2.89-seven.fifty five 4-eleven 198-230
ESR-80H 1140-1900 63.7-98 1.82-four.fifty five 4.09-10.1 5.five-15 316-326
ESR-100H 1060-1980 sixty three.7-98 2.sixty five-8.06 six.36-seventeen.two 7.5-22 398-459
ESR-125H 980-1850 4.sixty four-11.23 8.92-24.two eleven-30 544-630
ESR-150H 810-1730 sixty eight nine.fifty three-25.seventy six 17.16-sixty five eighteen.five-seventy five 752-1571
ESR-200H 810-1480 sixty eight twenty five.34-fifty six.92 forty two.34-one hundred twenty fifty five-132 1426-1934
ESR-250H 990-1480 fifty eight-ninety three.7 eighty three.2-205 ninety-220 2980-3468
ESR300H 990-1480 sixty three.7-ninety eight 114.7-270 132-280 3476-3998
ERF-245 650-980 nine.8-ninety eight 47.5-97.4 sixteen-183 eighteen.five-two hundred 3630-3690
ERF-250 650-980 nine.eight-ninety eight sixty one.6-120.4 19-227 22-250 4450-4500
ERF-290 650-980 nine.eight-78.four 92.three-128 22-213 thirty-250 4890-4710
ERF-295 650-980 nine.8-78.four ninety seven.three-152.5 23-227 30-250 4890-4880
ERF-297 650-980 nine.eight-seventy eight.four 87.five-167.six 26-249 30-280 5330-5520
ERF-three hundred 650-980 9.8-78.four 29-278 37-315 5330-5520
ERF-350 650-980 9.eight-seventy eight.four 126-224.nine 34-249 45-280 5210-6470
ERG-three hundred 590-730 9.eight-98 128.3-196 38-362 forty five-four hundred 9440-15710
ERG-350 590-730 nine.eight-ninety eight 159.3-231.6 forty three-420 55-450 9700-1571
ERG-four hundred 590-730 9.8-83.three 203.1-290.nine fifty two-449 75-500 10090-11390
ERG-445 590-730 9.8-seventy three.5 229.7-327.8 fifty eight-477 seventy five-560 10600-12230
ERG-450 590-730 nine.8-seventy three.5 262.4-366.2 64-496 seventy five-560 10600-12230
ERG-500 590-730 9.eight-63.7 327.four-452.4 seventy eight-529 90-560 12790-14620
ERF-240-V 650-980 -9.eight- -49 eight thirteen-seventy six eighteen.5-ninety 3420-3285
ERF-245-V 650-980 -9.8- -forty nine forty seven.five-ninety seven.four 16-95 22-one hundred ten 3425-3360
ERF-250-V 650-980 -nine.eight- -49 sixty three-a hundred and twenty 19-117 22-132 3910-3830
ERF-290-V 650-980 -nine.eight- -49 72.6-a hundred and forty four 22-136 30-160 4415-4270
ERF-295-V 650-980 -nine.eight- -forty nine seventy six.six-152 23-a hundred forty five 30-a hundred and sixty 4425-4485
ERF-297-V 650-980 -9.8- -forty nine eighty four.3-166.eight 26-a hundred and sixty 30-180 5000-4980
ERF-three hundred-V 650-980 -nine.eight- -forty nine ninety seven-192 29-178 37-200 5000-4980
ERF-350-V 650-980 -nine.eight- -49 116-225 34-209 45-250 5400-5700
ERG-300V 590-730 -nine.8- -forty nine 133-193 38-184 forty five-220 7800-9100
ERG-350V 590-730 -9.8- -forty nine 163-231 forty three-216 fifty five-250 9500-9470
ERG-400V 590-730 -nine.eight- -forty nine 199-290 52-269 seventy five-315 9900-10130
ERG-445V 590-730 -9.eight- -forty nine 224.eight-326.9 fifty eight-303 75-355 9900-10130
ERG-450V 590-730 -9.eight- -forty nine 255-365 64-335 seventy five-400 11230-11300
ERG-500V 590-730 -nine.8- -49 314-452 seventy eight-412 132-450 13630-13850
ERF-245W 650-980 -13.three- -53.3 fifty three.five-101 21.5-102 thirty-110 3630-3360
ERF-250W 650-980 -13.3- -53.three sixty nine-127 26.five-127 30-one hundred sixty 3985-4115
ERF-290W 650-980 -thirteen.three- -53.three 82.six-a hundred and fifty 30.five-149 37-185 4340-4580
ERF-295W 650-980 -13.3- -fifty three.three 87-158 32-158 37-185 4440-4580
ERF-297W 650-980 -13.3- -fifty three.three ninety five-174 36-174 forty five-two hundred 5230-5130
ERF-300W 650-980 -13.3- -fifty three.three 109-195 40-193 55-220 5230-5130
ERF-350W 650-980 -thirteen.3- -53.three 129-230 fifty-230 75-250 5840-5670
ERG-300W 590-730 -thirteen.three- -fifty three.three 142-197 52-201 75-220 9100-9000
ERF-350W 590-730 -13.3- -fifty three.three 168-234.four fifty nine-235.5 75-280 9500-9600
ERG-400W 590-730 -13.3- -53.three 220-276.six 71-292 90-315 9900-10130
ERG-445W 590-730 -13.three- -fifty three.3 244-294.six 82-331 ninety-four hundred 11230-11300
ERG450W 590-730 -13.3- -53.3 275-368.5 ninety one-366 one hundred ten-400 11230-11300
650-980 ninety eight-196 sixty four.8-112 one hundred thirty five-355 a hundred and sixty-400 8700-8600
650-980 98-196 eighty.eight-139 167-439 185-500 9200-9100
ETRF-three hundred
650-980 98-176.four 102-174 206-497 250-560 10320-10500
650-980 ninety eight-137.2 124-207 241-473 280-560 10700-11110
590-740 ninety eight-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 72-121 75.six-121 ninety-one hundred sixty 6100-6470
650-980 -53.three–eighty 93.8-154 ninety nine.5-186 110-220 7000-6400
650-980 -53.three–eighty 116-189 115-220 132-250 7750-7760
EL81WD 580-980 9.eight-fifty eight.8 fifty four.two-a hundred thirty 18-151 forty five-185 3595
EL82WDB 580-980 9.8-fifty eight.eight seventy two.eight-161 22-191 45-220 3860
EL83WDA 580-980 9.8-fifty eight.nine one hundred and one-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 nine.8-49 230-329 56.4-311 75-355 7765
EL94WDA 580-730 9.eight-49 263-373 64-353 seventy five-400 8130
EL95WDA 490-580 nine.eight-58.8 308-434 81.4-414 ninety-450 11500
EL96WDA 580 58.eight 381 497 560 11500
E397WN 1000-1650 40 five-nine      
E408WN 870-1650 40 10-22      
E517WN 980-1580 forty 20-thirty      
E520WN 930-1550 forty 24-forty five      
E607WN 750-1250 forty forty five-76      
E610WN 750-1250 40 75-one hundred thirty      

Spare areas and composition of our roots blower:

Bundle of our Roots Blower

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

Roots blower pack strategy same as iron scenario, just modify to Fumigation Totally free Plywood Circumstance

Our manufacturing facility is a skilled producer of Roots blowers which has over 20 years’ experience in equipment
manufacturing. It is situated in Xihu (West Lake) Dis. East Industrial Park, fifty kilometers to the east of Shan EPT provincial
capital— HangZhou. Our company also has practical visitors transportation, as it is fifteen kilometers away from
Diaozhen Town station of HangZhou-HangZhou expressway, and 30 kilometers absent from East HangZhou station of
ZheJiang -ZheJiang expressway.The foremost item of our organization is ESR -type Roots Blower. The roots
vacuum pump is a new variety of large-performance roots blower, which is designed independently based mostly on the
domestic and foreign innovative systems. Numerous patented technologies have been adopted on Roots
Blower, and thus we have manufactured considerable outcomes in vitality conservation and noise reduction, and so forth.. So far, our
business has invested much more than 30,000,000 RMB to introduce this sort of sophisticated specialist gear as
horizontal machining center, vertical machining heart, two-way CNC surface area planer, CNC lathe, CNC milling
equipment, CNC planer, aircraft grinder, cylindrical grinding equipment, and a few coordinates tests equipment.
Apart from, we have taken a variety of steps to standardize the method stream these kinds of as working and cooperating
with many scientific research units, colleges and universities at house and overseas. We also constantly consider to
take up and improve the domestic sophisticated production technologies, so as to market the upgrading and
optimization of the merchandise and make the merchandise top quality achieve the advanced amount at residence and overseas.
ESR -sort Roots Blower contains many series this kind of as A few-leaves Type, Two-leaves Kind and Centrifugal
Type,which can be additional divided to hundreds of versions. The items are extensively employed in sewage therapy,
pneumatic conveying,vacuum packaging, aquaculture, foodstuff processing, EPT energy, petrochemical, cement,
mining and other industries. Our products have such advantages as minimal sounds, power saving, stable high quality,
and extended provider life, and many others.. With the income outlets throughout the domestic funds cities, our goods sell nicely all
more than the place, and have been exported to North The us,Russia, Malaysia, Indonesia, Vietnam, South Africa
and some other countries. Getting got the ISO9001 International High quality Program Certification, we have
set up and enhanced the good quality assurance of the items designing, producing, and set up.
From the process of style, investigation and growth to the finished items, we have got the complete
method managed independently, thus delivering the entire foundation and trustworthiness ensure for the goods security
and sturdiness. Getting a perfect product sales network and after-sales service, we give our customers with higher-
quality and far more productive services.All employees of our organization sincerely welcome the broad masses of friends to
manual, and negotiate business with us.

Our Roots Blower Workshop

         Doosn Horzitonal Machine Middle

The Software of the Roots Blower

Upkeep and inspection
(1) Verify all fasteners and finding pins problems no matter whether they are loosening.
(2) Often examine whether or not the leakage phenomenon of the entire body.
(3) Pay interest to lubrication, volume of grease and noises when operating,
decide whether or not it operates under the required conditions.
(4) Lubricant & grease: The lubricant is for medium load industrial equipment oil
(grade 220, kinematic viscosity of 198 ~ 242mm2 / s 40ºC, flash position ≥ 200ºC)
The grease is butter (artificial lithium grease penetration 220-250, fall stage ≥
190ºC). Replace the lubricant and grease following first 200 hours managing, and change
once again after a moth working. Later on, replace the lubricant and grease in accordance to the
atmosphere and lubricant (grease) good quality propose a suitable EPT for three
(5) Constantly check the inlet air filter, cleanse or replace the filter in time.
(six) Blower overload occasionally not right away displayed, so spend focus to
the intake and exhaust pressure, bearing temperature and the current enhance traits
of motor to figure out whether or not the blower works usually
(seven) Just before disassembling the blower, the assembling relation and proportions
must be recorded or calculated, make marks on elements to make sure the first
requirements right after assembling.
(eight) When recently equipment or overhaul, the oil tank need to be cleaned before use
and suggest exchange all grease after 8 hours working.

Frequent failure cause and troubleshooting

No Failure Possible reasons Elimination methods
one Friction
amongst the
(one) Impurities on the impeller,
resulting in the hole is too small
(2) Equipment dress in, ensuing in a
big backlash
(3) The equipment is not nicely mounted,
can not keep the impeller
(four) Bearing wear ensuing in
clearance escalating.
(1) Remove filth and verify
no matter whether there is hurt parts
(two) Modify the equipment hole, change
the gears if the equipment backlash is
greater than the average thirty% to
(three)Re-assemble the gears, maintain
the taper contact region is to seventy five%
(four)Exchange the bearing
two Collision
impeller and
wall, the
impeller best
and casing
(one) Installation hole is not right
(two) operating stress is way too
large, exceeding the specified
(three) Running temperature is also high
(four) Casing or base deformation,
positioning enthusiast failure
(five) Bearing axial spot is not very good
(one) Modify the gap
(2) Discover triggers of
overloading, reduced the stress
to the specified price
(three) Examine the installation
precision and minimize the pipe
(four) Examine and mend bearings,
and to make sure the clearance
3 Temperature
as well substantial
(1) Oil in tank is too a lot, way too
thick or also dirty
(2) Filter or silencer is blocked
(three)The strain is increased than
the specified price
(4)Too much dress in of the
impeller, big gap
(five)Inadequate air flow, indoor
temperature is large, ensuing in
inlet air’s high temperature
(6) The rotating pace is way too minimal,consequence in the belt slipping.
(one)Minimize the oil amount or rely on
(two)Get rid of of blocking objects
(three)Reducing the strain through
the blower
(4)Mend its clearance
(5)Open up vents to decrease space
(six) Improve velocity to prevent the
belt slipping.
four Insufficient
(one) The inlet filter is blocked
(two) Impeller put on and the gap
boosts way too much
(three) Belt slipping
(four) Large imports pressure decline
(5) Pipeline air flow leakage
(1) Clean the filter dust and
(2) Restore the hole
(3)Tighten the belt and enhance
the amount of belts
(4)Adjust the inlet pressure to the
specified value
(5) Verify and restore the pipeline
five Oil leaking or
oil leaking
into the enclosure
(1)Higher tank position cause
leakage from the discharge port
(2) Seal put on, resulting in shaft oil spills
(three) The force is greater than
the specified price

(one)Lessen the oil stage
(two)Change the seals
(3)Clear the air vents, 2mm diameter faucet is set in the
center chamber, open up the faucet
underneath the wall
6 Irregular
vibration and
(one)Bearing clearance exceeds the
specified benefit or bearing dress in
(two) The equipment backlash is too
large, not in a limited fastened
(three) The international objects and dust
caused by the impeller and the
impeller, the impeller and the
housing collision
(4) the impeller shaft
deformation caused the collision
caused by overload,
(five) Friction amongst the impeller
and the inlet housing induced by
(six) Unbalance of the impeller
caused by fouling or foreign
human body
(seven) Anchor bolts or other
fasteners are loosened
(one)Exchange bearings or bearing
(two)Reassemble gear and make sure
(3)Cleansing blower, examine the
situation is destroyed
(four)Verify the again strain, examine
the wheel and alter hole
(five)Examine the filter and back
pressure, boost the hole
between the impeller inlet and the
(six)Clear the impeller and the
casing, to make sure that the impeller
clearance function
(seven) Tighten the anchor bolts and
leveling the base.
7 Motor
(one)In comparison with the necessary
stress, the stress difference
is massive that the back force or
the inlet force is substantial
(2) When compared with the
tools specifications, blower
circulation is also big, so its strain
(three)Inlet filter is blocked, or outlet
pipe is obstructed or blocked
(four) Collusion or friction (caught)
rotating parts
(5) The oil stage is way too high
(6) Slim V-belt is overheat,
vibration is as well large, or pulley
is also tiny
(one) Reduce the stress to the
specified benefit
(two) Exhaust the excessive gasoline into
the atmosphere or reduce the
blower velocity
(three) Get rid of the obstructions
(four)Instantly shut down, check out
the cause
(five) Adjust the oil to the proper
(6) Check out the belt rigidity, and
changed it with big diameter

Our Support

one. Pre offer service                                                                              2. Following market service                                          
a. advocate the suited model                                             c. on the internet complex help,                                                                                   
b. factory tour                                                                              d. whole life spare areas and techinical assistance


12 months gurantee for our roots blowers

/ The use of first equipment manufacturer’s (OEM) element figures or trademarks , e.g. CASE® and John Deere® are for reference functions only and for indicating solution use and compatibility. Our business and the listed EPT areas contained herein are not sponsored, accredited, or manufactured by the OEM. /

Two  China  in   Coimbatore India   flexible gear coupling  shop  Stage  in   Nice France   gear type coupling sales  High Pressure Roots Blower  with top quality lowest price