Elt-65  China  in   Meknes Morocco   helical flexible shaft coupling  factory  High  in   Donetsk Ukraine   gear coupling hub  price  Efficiency Low energy Root Blower with top quality lowest price

We – EPG Group the biggest couplings and gears factory in China with five different branches. For much more specifics: Mobile/whatsapp/telegram/Kakao us at: 0086-13083988828 /

We make all types of roots blower, centrifugal blower, Our Primary products are as underneath:

Kind Diameter Rate of circulation Pressure
ESR-MJ(Intensive Type) Φ50~Φ300mm .5~140m³/min 9.8KPa~98.8Kpa
ESR(Ordinary Sort) Φ50~Φ350mm .5~140m³/min nine.8KPa~78.4Kpa
ESR-H(High-pressure Kind) Φ50~Φ350mm .7~160m³/min 58.8KPa~ninety eight.8Kpa
ESR-V(Vacuum Pump) Φ50~Φ350mm .five~160m³/min 9.8KPa~53.3Kpa
EL Series Φ200~Φ600mm 20.3~750m³/min 9.8KPa~58.8Kpa
Multistage Centrifugal Blower
or C-Collection
Φ250~Φ500mm 50~500m³/min 9.8KPa~98Kpa
ERR-ERG Sort Φ250~Φ500mm one hundred twenty~420m³/min 9.8KPa~ninety eight.8Kpa

The operating theory of the 3-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. Via the motion of a pair of
synchronous gears, the two rotors rotate in opposite 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. Massive adjustment of the air volume
two. Low Noise
three. Higher effectiveness
4. Minimal power cosumption
5. Prolonged time daily life
6. Trustworthy running, effortless routine maintenance,tiny footprint

The parameters of our roots blower:

Kind Ratary Speed
Pressure Rise
Shaft Electrical power
Motor Device Maximn
ESR-50 1100-2120 nine.8-58.8 .65-two.fifty eight .three-3.54 .75-4 128-158
ESR-65 1100-2130 9.eight-fifty eight.eight .ninety four-3.sixty six .38-four.46 .seventy five-five.5 a hundred and fifty five-185
ESR-eighty 1140-1900 nine.eight-58.eight 2.34-five.forty three one.04-seven.forty two 2.2-11 a hundred and fifty five-277
ESR-a hundred 1060-1980 nine.8-58.8 4.fifty seven-nine.05 1.35-12.fifteen three-15 309-377
ESR-a hundred twenty five 980-1850 9.eight-58.eight five.35-12.4 one.sixty five-5.19 5.5-eighteen.5 408-451
ESR-125C 970-1830 9.8-fifty eight.eight seven.five-17.fifty seven three.2-eighteen.five four-22 408-451
ESR-one hundred fifty 810-1730 9.eight-58.8 10.37-27.fifteen three.84-forty.eighty two 7.5-forty five 688-848
ESR-a hundred seventy five 970-1520 9.8-58.eight 19.65-36.sixty five 7.2-45.95 eleven-55 980-1080
ESR-200B 740-1450 nine.eight-fifty eight.8 19.65-44.8 10.15-60.44 15-seventy five 1272-1546
ESR-two hundred 810-1480 9.eight-58.eight 27.65-59.two 8.05-eighty,twelve fifteen-ninety 1272-1546
ESR-250B 1100-1480 9.8-58.8 54.77-77.55 19.97-ninety.97 thirty-a hundred and ten 1490-2454
ESR-250 990-1480 nine.8-fifty eight.eight 61.four-ninety seven.52 twenty.one-117.3 thirty-132 1490-2454
ESR-three hundred 990-1480 nine.8-58.8 87.one-138.1 26.4-167.eight 37-185 3326-3446
ESR-350 730-1480 nine.8-58.eight seventy eight.forty one-177.31   fifty five-250  
ESR-50H 1230-2120 63.7-98 .forty five-two.02 2.05-6.twelve three-seven.five a hundred and sixty–a hundred and seventy
ESR-65H 1240-2130 sixty three.7-ninety eight .78-two.fifty three two.89-seven.fifty five four-eleven 198-230
ESR-80H 1140-1900 63.7-98 one.eighty two-4.55 four.09-10.one 5.five-fifteen 316-326
ESR-100H 1060-1980 sixty three.7-98 2.sixty five-eight.06 six.36-seventeen.2 7.five-22 398-459
ESR-125H 980-1850 63.7-ninety eight four.64-11.23 eight.92-24.two 11-thirty 544-630
ESR-150H 810-1730 sixty three.7-98 9.fifty three-twenty five.seventy six 17.16-sixty five 18.5-seventy five 752-1571
ESR-200H 810-1480 63.7-ninety eight 25.34-fifty six.92 forty two.34-120 fifty five-132 1426-1934
ESR-250H 990-1480 63.seven-ninety eight fifty eight-93.7 eighty three.two-205 ninety-220 2980-3468
ESR300H 990-1480 63.7-98 86.nine-134.1 114.seven-270 132-280 3476-3998
ERF-245 650-980 nine.8-ninety eight 47.5-ninety seven.4 16-183 eighteen.5-200 3630-3690
ERF-250 650-980 nine.8-ninety eight sixty one.6-120.four 19-227 22-250 4450-4500
ERF-290 650-980 nine.8-78.four 92.three-128 22-213 thirty-250 4890-4710
ERF-295 650-980 nine.eight-78.four ninety seven.three-152.five 23-227 30-250 4890-4880
ERF-297 650-980 nine.8-seventy eight.4 87.five-167.6 26-249 30-280 5330-5520
ERF-300 650-980 9.8-78.four 101.5-188.seven 29-278 37-315 5330-5520
ERF-350 650-980 nine.8-seventy eight.four 126-224.9 34-249 forty five-280 5210-6470
ERG-300 590-730 9.8-ninety eight 128.3-196 38-362 forty five-four hundred 9440-15710
ERG-350 590-730 nine.8-ninety eight 159.three-231.six 43-420 fifty five-450 9700-1571
ERG-four hundred 590-730 nine.eight-eighty three.three 203.1-290.nine 52-449 75-five hundred 10090-11390
ERG-445 590-730 9.eight-seventy three.five 229.7-327.eight fifty eight-477 75-560 10600-12230
ERG-450 590-730 9.eight-73.five 262.four-366.2 sixty four-496 seventy five-560 10600-12230
ERG-five hundred 590-730 9.eight-sixty three.7 327.four-452.4 78-529 90-560 12790-14620
ERF-240-V 650-980 -9.8- -forty nine 38.1-78 13-76 18.five-90 3420-3285
ERF-245-V 650-980 -nine.eight- -forty nine forty seven.5-ninety seven.four sixteen-95 22-110 3425-3360
ERF-250-V 650-980 -9.8- -forty nine sixty three-120 19-117 22-132 3910-3830
ERF-290-V 650-980 -nine.eight- -forty nine 72.6-a hundred and forty four 22-136 30-160 4415-4270
ERF-295-V 650-980 -nine.eight- -49 76.six-152 23-145 thirty-one hundred sixty 4425-4485
ERF-297-V 650-980 -9.8- -forty nine 84.3-166.eight 26-one hundred sixty 30-180 5000-4980
ERF-three hundred-V 650-980 -nine.8- -49 ninety seven-192 29-178 37-two hundred 5000-4980
ERF-350-V 650-980 -9.eight- -forty nine 116-225 34-209 forty five-250 5400-5700
ERG-300V 590-730 -nine.8- -forty nine 133-193 38-184 45-220 7800-9100
ERG-350V 590-730 -nine.8- -49 163-231 forty three-216 55-250 9500-9470
ERG-400V 590-730 -9.eight- -forty nine 199-290 fifty two-269 75-315 9900-10130
ERG-445V 590-730 -nine.eight- -49 224.8-326.nine 58-303 75-355 9900-10130
ERG-450V 590-730 -nine.8- -forty nine 255-365 sixty four-335 75-four hundred 11230-11300
ERG-500V 590-730 -9.eight- -49 314-452 seventy eight-412 132-450 13630-13850
ERF-245W 650-980 -13.three- -53.three fifty three.5-one hundred and one 21.5-102 30-a hundred and ten 3630-3360
ERF-250W 650-980 -13.3- -53.three sixty nine-127 26.five-127 30-160 3985-4115
ERF-290W 650-980 -13.three- -fifty three.three 82.six-150 thirty.5-149 37-185 4340-4580
ERF-295W 650-980 -thirteen.three- -53.three 87-158 32-158 37-185 4440-4580
ERF-297W 650-980 -thirteen.3- -53.three 95-174 36-174 forty five-two hundred 5230-5130
ERF-300W 650-980 -thirteen.three- -53.3 109-195 forty-193 fifty five-220 5230-5130
ERF-350W 650-980 -thirteen.3- -fifty three.three 129-230 fifty-230 seventy five-250 5840-5670
ERG-300W 590-730 -13.3- -fifty three.three 142-197 52-201 75-220 9100-9000
ERF-350W 590-730 -13.3- -fifty three.three 168-234.4 59-235.five 75-280 9500-9600
ERG-400W 590-730 -13.3- -53.3 220-276.6 seventy one-292 90-315 9900-10130
ERG-445W 590-730 -13.three- -53.three 244-294.6 eighty two-331 ninety-four hundred 11230-11300
ERG450W 590-730 -thirteen.3- -fifty three.3 275-368.five 91-366 a hundred and ten-400 11230-11300
650-980 ninety eight-196 64.eight-112 135-355 one hundred sixty-four hundred 8700-8600
650-980 ninety eight-196 eighty.8-139 167-439 185-five hundred 9200-9100
650-980 98-176.4 102-174 206-497 250-560 10320-10500
650-980 ninety eight-137.two 124-207 241-473 280-560 10700-11110
ETRG-four hundred
(three hundred,400)
590-740 98-176.four 205-273 380-773 450-900 21350-24200
590-740 ninety eight-176.4 263-428 476-955 560-a thousand 24200-27600
650-980 -fifty three.three–80 seventy two-121 75.six-121 90-a hundred and sixty 6100-6470
650-980 -53.3–eighty 93.8-154 99.5-186 one hundred ten-220 7000-6400
(2505/three hundred)
650-980 -53.3–eighty 116-189 a hundred and fifteen-220 132-250 7750-7760
EL81WD 580-980 nine.eight-fifty eight.8 fifty four.two-130 18-151 forty five-185 3595
EL82WDB 580-980 nine.eight-fifty eight.eight seventy two.8-161 22-191 forty five-220 3860
EL83WDA 580-980 nine.8-58.9 101-213 28.5-202 forty five-220 4300
EL84WDA 580-980 nine.eight-fifty eight.8 129-267 35.four-252 45-280 4720
EL93WDA 580-730 9.8-49 230-329 fifty six.four-311 seventy five-355 7765
EL94WDA 580-730 nine.eight-forty nine 263-373 64-353 seventy five-four hundred 8130
EL95WDA 490-580 9.8-58.eight 308-434 eighty one.four-414 ninety-450 11500
EL96WDA 580 58.8 381 497 560 11500
E397WN one thousand-1650 forty five-nine      
E408WN 870-1650 forty ten-22      
E517WN 980-1580 40 twenty-30      
E520WN 930-1550 40 24-45      
E607WN 750-1250 40 45-76      
E610WN 750-1250 forty 75-130      

Spare areas and construction of our roots blower:

Package deal of our Roots Blower

Pack into iron situation, two layer,blower entire body and motor in reduce layer, inlet/out silencer and so on in upper layer

Roots blower pack strategy same as iron case, just adjust to Fumigation Free of charge Plywood Circumstance

Our factory is a expert manufacturer of Roots blowers which has above 20 years’ experience in equipment
manufacturing. It is positioned in Xihu (West Lake) Dis. East Industrial Park, fifty kilometers to the east of Shan EPT provincial
capital— HangZhou. Our firm also has hassle-free 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 foremost item of our business is ESR -sort Roots Blower. The roots
vacuum pump is a new type of higher-performance roots blower, which is produced independently dependent on the
domestic and overseas superior technologies. Many patented technologies have been adopted on Roots
Blower, and therefore we have manufactured substantial outcomes in vitality conservation and noise reduction, etc.. So considerably, our
business has invested much more than 30,000,000 RMB to introduce this kind of sophisticated skilled products as
horizontal machining center, vertical machining center, two-way CNC surface area planer, CNC lathe, CNC milling
machine, CNC planer, plane grinder, cylindrical grinding equipment, and three coordinates tests machine.
Besides, we have taken various actions to standardize the method movement these kinds of as operating and cooperating
with many scientific research units, schools and universities at house and abroad. We also repeatedly consider to
soak up and improve the domestic superior generation systems, so as to encourage the upgrading and
optimization of the product and make the product high quality reach the superior level at house and overseas.
ESR -sort Roots Blower contains several sequence these kinds of as A few-leaves Sort, Two-leaves Variety and Centrifugal
Kind,which can be further divided to hundreds of types. The merchandise are broadly used in sewage remedy,
pneumatic conveying,vacuum packaging, aquaculture, meals processing, EPT energy, petrochemical, cement,
mining and other industries. Our products have this kind of advantages as reduced noise, energy preserving, steady quality,
and long service daily life, etc.. With the income outlets throughout the domestic cash metropolitan areas, our merchandise sell effectively all
more than the place, and have been exported to North America,Russia, Malaysia, Indonesia, Vietnam, South Africa
and some other nations. Getting received the ISO9001 International Good quality System Certification, we have
recognized and improved the top quality assurance of the merchandise developing, manufacturing, and set up.
From the procedure of style, study and improvement to the concluded merchandise, we have acquired the entire
procedure controlled independently, hence offering the full basis and dependability assure for the items steadiness
and longevity. Getting a perfect product sales community and after-sales support, we give our buyers with higher-
quality and a lot more effective provider.All personnel of our company sincerely welcome the wide masses of buddies to
guide, and negotiate company with us.

Our Roots Blower Workshop

         Doosn Horzitonal Device Centre

The Software of the Roots Blower

Maintenance and inspection
(one) Check out all fasteners and locating pins situations whether or not they are loosening.
(two) Always check whether the leakage phenomenon of the entire body.
(three) Pay attention to lubrication, sum of grease and noises when managing,
figure out whether or not it operates underneath the required conditions.
(four) 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, fall point ≥
190ºC). Exchange the lubricant and grease soon after very first 200 hours managing, and change
once more following a moth operating. Afterwards, substitute the lubricant and grease in accordance to the
setting and lubricant (grease) high quality propose a suited EPT for three
(5) Constantly check the inlet air filter, clear or exchange the filter in time.
(six) Blower overload at times not immediately displayed, so spend consideration to
the intake and exhaust strain, bearing temperature and the recent boost developments
of motor to decide no matter whether the blower operates usually
(7) Prior to disassembling the blower, the assembling relation and proportions
must be recorded or measured, make marks on factors to guarantee the unique
needs soon after assembling.
(eight) When freshly machine or overhaul, the oil tank need to be cleaned just before use
and propose exchange all grease soon after 8 hours working.

Frequent failure purpose and troubleshooting

No Failure Feasible reasons Elimination strategies
one Friction
among the
(1) Impurities on the impeller,
resulting in the gap is also tiny
(two) Gear wear, resulting in a
large backlash
(3) The gear is not effectively mounted,
can not keep the impeller
(4) Bearing use resulting in
clearance rising.
(one) Remove filth and examine
no matter whether there is harm parts
(two) Change the gear hole, substitute
the gears if the equipment backlash is
better than the common 30% to
(3)Re-assemble the gears, hold
the taper contact area is to 75%
(four)Replace the bearing
2 Collision
impeller and
wall, the
impeller best
and casing
(1) Installation gap is not proper
(2) operating force is too
substantial, exceeding the specified
(three) Running temperature is way too substantial
(four) Casing or base deformation,
positioning enthusiast failure
(5) Bearing axial area is not great
(1) Adjust the gap
(two) Recognize brings about of
overloading, decreased the stress
to the specified value
(3) Check the set up
accuracy and minimize the pipe
(four) Examine and fix bearings,
and to make certain the clearance
three Temperature
way too large
(1) Oil in tank is also much, as well
thick or too dirty
(two) Filter or silencer is blocked
(3)The stress is greater than
the specified worth
(four)Too much wear of the
impeller, large gap
(5)Poor air flow, indoor
temperature is large, resulting in
inlet air’s substantial temperature
(six) The rotating speed is too low,result in the belt slipping.
(one)Minimize the oil stage or count on
(2)Get rid of of blocking objects
(3)Reducing the strain through
the blower
(four)Restore its clearance
(5)Open up vents to lessen space
(six) Boost speed to avert the
belt slipping.
four Insufficient
(one) The inlet filter is blocked
(two) Impeller dress in and the hole
boosts as well much
(three) Belt slipping
(four) Massive imports stress decline
(five) Pipeline ventilation leakage
(one) Thoroughly clean the filter dust and
(2) Fix the hole
(3)Tighten the belt and enhance
the number of belts
(4)Modify the inlet strain to the
specified worth
(five) Examine and repair the pipeline
5 Oil leaking or
oil leaking
into the enclosure
(one)High tank placement result in
leakage from the discharge port
(2) Seal put on, resulting in shaft oil spills
(3) The pressure is larger than
the specified benefit

(one)Lessen the oil amount
(2)Exchange the seals
(3)Obvious the air vents, 2mm diameter faucet is set in the
center chamber, open up the faucet
beneath the wall
six Irregular
vibration and
(1)Bearing clearance exceeds the
specified benefit or bearing put on
(two) The equipment backlash is way too
huge, not in a restricted set
(three) The international objects and dust
induced by the impeller and the
impeller, the impeller and the
housing collision
(4) the impeller shaft
deformation brought on the collision
triggered by overload,
(5) Friction amongst the impeller
and the inlet housing caused by
(6) Unbalance of the impeller
caused by fouling or overseas
human body
(seven) Anchor bolts or other
fasteners are loosened
(1)Substitute bearings or bearing
(2)Reassemble gear and guarantee
(3)Cleansing blower, examine the
circumstance is destroyed
(4)Examine the back again stress, check out
the wheel and adjust gap
(5)Verify the filter and again
strain, improve the hole
between the impeller inlet and the
(6)Clear the impeller and the
casing, to make certain that the impeller
clearance operate
(seven) Tighten the anchor bolts and
leveling the base.
seven Motor
(1)Compared with the required
stress, the pressure big difference
is huge that the back again stress or
the inlet strain is substantial
(2) In contrast with the
gear needs, blower
movement is as well massive, so its stress
(three)Inlet filter is blocked, or outlet
pipe is obstructed or blocked
(4) Collusion or friction (stuck)
rotating areas
(5) The oil amount is too substantial
(6) Slender V-belt is overheat,
vibration is also big, or pulley
is also little
(one) Minimize the strain to the
specified price
(2) Exhaust the excess gasoline into
the environment or minimize the
blower pace
(three) Get rid of the obstructions
(four)Quickly shut down, check
the purpose
(5) Modify the oil to the right
(6) Verify the belt rigidity, and
replaced it with huge diameter

Our Provider

one. Pre promote service                                                                              2. Soon after sell service                                          
a. recommend the suitable model                                             c. on the web technological support,                                                                                   
b. manufacturing facility tour                                                                              d. entire daily life spare components and techinical assist


twelve months gurantee for our roots blowers

/ The use of unique gear manufacturer’s (OEM) part figures or emblems , e.g. CASE® and John Deere® are for reference functions only and for indicating solution use and compatibility. Our company and the detailed EPT components contained herein are not sponsored, accredited, or produced by the OEM. /

Elt-65  China  in   Meknes Morocco   helical flexible shaft coupling  factory  High  in   Donetsk Ukraine   gear coupling hub  price  Efficiency Low energy Root Blower with top quality lowest price