Elt-125s  China  in   Salem India   fenner gear coupling  factory  High  in   Jakarta Indonesia   fenner grid coupling  factory  Efficieny Low Energy Roots Blower with top quality lowest price

We – EPG Group the largest couplings and gears manufacturing facility in China with five distinct branches. For more particulars: Cell/whatsapp/telegram/Kakao us at: 0086-13083988828 /

We make all kinds of roots blower, centrifugal blower, Our Principal items are as below:

Type Diameter Price of flow Force
ESR-MJ(Intense Kind) Φ50~Φ300mm .five~140m³/min nine.8KPa~ninety eight.8Kpa
ESR(Regular Sort) Φ50~Φ350mm .five~140m³/min 9.8KPa~78.4Kpa
ESR-H(High-force Type) Φ50~Φ350mm .7~160m³/min 58.8KPa~ninety eight.8Kpa
ESR-V(Vacuum Pump) Φ50~Φ350mm .five~160m³/min 9.8KPa~53.3Kpa
EL Sequence Φ200~Φ600mm twenty.three~750m³/min 9.8KPa~58.8Kpa
Multistage Centrifugal Blower
or C-Series
Φ250~Φ500mm 50~500m³/min 9.8KPa~98Kpa
ERR-ERG Type Φ250~Φ500mm a hundred and twenty~420m³/min nine.8KPa~ninety eight.8Kpa

The working principle of the a few-blade roots blower: two 3-lobed rotors are organized in the cavity, and the
suction port and the discharge port are opened on both sides of the cavity. By way of 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 gas in the chamber is pushed to accomplish the
function of blowing.

Function of our roots blower:
one. Massive adjustment of the air volume
two. Minimal Noise
3. Substantial performance
4. Minimal power cosumption
5. Long time lifestyle
6. Reliable working, effortless servicing,small footprint

The parameters of our roots blower:

Type Ratary Velocity
Force Increase
Shaft Electrical power
Motor Unit Maximn
Excess weight(Kg)
Electrical power
ESR-fifty 1100-2120 nine.8-fifty eight.eight .65-2.58 .3-three.fifty four .seventy five-4 128-158
ESR-sixty five 1100-2130 nine.eight-58.8 .ninety four-3.66 .38-4.46 .seventy five-five.five a hundred and fifty five-185
ESR-eighty 1140-1900 9.eight-58.eight 2.34-five.forty three 1.04-7.forty two 2.two-11 155-277
ESR-100 1060-1980 nine.eight-fifty eight.eight four.fifty seven-nine.05 1.35-twelve.15 3-15 309-377
ESR-one hundred twenty five 980-1850 9.eight-58.eight five.35-twelve.four one.sixty five-five.19 five.5-18.5 408-451
ESR-125C 970-1830 9.8-58.eight seven.five-seventeen.57 three.2-18.five 4-22 408-451
ESR-one hundred fifty 810-1730 9.eight-58.eight 10.37-27.fifteen 3.eighty four-40.eighty two seven.five-45 688-848
ESR-a hundred seventy five 970-1520 9.8-fifty eight.eight 19.65-36.sixty five 7.two-forty five.95 eleven-fifty five 980-1080
ESR-200B 740-1450 9.eight-58.eight 19.65-44.eight 10.fifteen-sixty.44 fifteen-75 1272-1546
ESR-two hundred 810-1480 9.eight-58.8 27.sixty five-fifty nine.2 8.05-eighty,12 15-ninety 1272-1546
ESR-250B 1100-1480 9.eight-fifty eight.8 54.77-77.fifty five 19.97-90.97 30-110 1490-2454
ESR-250 990-1480 9.eight-58.eight 61.four-ninety seven.fifty two twenty.1-117.three 30-132 1490-2454
ESR-three hundred 990-1480 9.eight-58.8 87.1-138.1 26.four-167.eight 37-185 3326-3446
ESR-350 730-1480 9.eight-fifty eight.8 seventy eight.41-177.31   fifty five-250  
ESR-50H 1230-2120 63.seven-ninety eight .45-two.02 2.05-six.twelve three-7.five 160–a hundred and seventy
ESR-65H 1240-2130 sixty three.7-ninety eight .seventy eight-two.fifty three 2.89-7.fifty five 4-eleven 198-230
ESR-80H 1140-1900 sixty three.seven-98 one.82-4.55 four.09-ten.one 5.5-fifteen 316-326
ESR-100H 1060-1980 63.seven-ninety eight two.65-8.06 six.36-seventeen.2 7.five-22 398-459
ESR-125H 980-1850 63.seven-ninety eight four.64-eleven.23 eight.ninety two-24.2 eleven-thirty 544-630
ESR-150H 810-1730 sixty three.7-ninety eight 9.fifty three-25.seventy six seventeen.sixteen-sixty five eighteen.five-seventy five 752-1571
ESR-200H 810-1480 sixty three.seven-98 25.34-56.ninety two 42.34-one hundred twenty fifty five-132 1426-1934
ESR-250H 990-1480 63.seven-ninety eight 58-ninety three.7 83.two-205 ninety-220 2980-3468
ESR300H 990-1480 63.7-ninety eight 86.9-134.1 114.7-270 132-280 3476-3998
ERF-245 650-980 nine.eight-ninety eight forty seven.five-97.four sixteen-183 18.5-200 3630-3690
ERF-250 650-980 nine.8-98 61.6-a hundred and twenty.4 19-227 22-250 4450-4500
ERF-290 650-980 9.eight-78.four ninety two.three-128 22-213 30-250 4890-4710
ERF-295 650-980 9.eight-78.4 ninety seven.3-152.5 23-227 30-250 4890-4880
ERF-297 650-980 9.eight-78.four 87.five-167.six 26-249 30-280 5330-5520
ERF-300 650-980 nine.8-seventy eight.four a hundred and one.five-188.7 29-278 37-315 5330-5520
ERF-350 650-980 nine.8-seventy eight.four 126-224.9 34-249 45-280 5210-6470
ERG-three hundred 590-730 nine.8-ninety eight 128.3-196 38-362 45-400 9440-15710
ERG-350 590-730 9.eight-ninety eight 159.3-231.six forty three-420 55-450 9700-1571
ERG-four hundred 590-730 nine.8-eighty three.3 203.1-290.9 52-449 75-500 10090-11390
ERG-445 590-730 9.eight-seventy three.5 229.7-327.eight 58-477 seventy five-560 10600-12230
ERG-450 590-730 9.eight-73.5 262.four-366.two 64-496 75-560 10600-12230
ERG-five hundred 590-730 9.eight-63.7 327.four-452.four seventy eight-529 90-560 12790-14620
ERF-240-V 650-980 -nine.eight- -forty nine 38.1-78 13-76 eighteen.5-90 3420-3285
ERF-245-V 650-980 -9.8- -49 forty seven.5-ninety seven.4 16-95 22-one hundred ten 3425-3360
ERF-250-V 650-980 -nine.eight- -49 63-a hundred and twenty 19-117 22-132 3910-3830
ERF-290-V 650-980 -9.8- -forty nine 72.6-144 22-136 thirty-one hundred sixty 4415-4270
ERF-295-V 650-980 -nine.eight- -forty nine seventy six.6-152 23-a hundred forty five 30-160 4425-4485
ERF-297-V 650-980 -9.eight- -49 84.3-166.8 26-one hundred sixty thirty-180 5000-4980
ERF-300-V 650-980 -nine.eight- -forty nine 97-192 29-178 37-200 5000-4980
ERF-350-V 650-980 -9.eight- -forty nine 116-225 34-209 forty five-250 5400-5700
ERG-300V 590-730 -9.8- -forty nine 133-193 38-184 45-220 7800-9100
ERG-350V 590-730 -nine.8- -forty nine 163-231 43-216 fifty five-250 9500-9470
ERG-400V 590-730 -nine.8- -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 -9.8- -forty nine 255-365 sixty four-335 seventy five-four hundred 11230-11300
ERG-500V 590-730 -9.8- -49 314-452 seventy eight-412 132-450 13630-13850
ERF-245W 650-980 -13.three- -53.three fifty three.five-101 21.five-102 30-one hundred ten 3630-3360
ERF-250W 650-980 -13.three- -fifty three.three 69-127 26.five-127 thirty-a hundred and sixty 3985-4115
ERF-290W 650-980 -thirteen.three- -fifty three.three eighty two.six-one hundred fifty thirty.5-149 37-185 4340-4580
ERF-295W 650-980 -13.three- -53.3 87-158 32-158 37-185 4440-4580
ERF-297W 650-980 -13.three- -fifty three.three ninety five-174 36-174 45-two hundred 5230-5130
ERF-300W 650-980 -13.three- -fifty three.3 109-195 40-193 fifty five-220 5230-5130
ERF-350W 650-980 -13.three- -fifty three.3 129-230 50-230 75-250 5840-5670
ERG-300W 590-730 -13.3- -fifty three.3 142-197 fifty two-201 75-220 9100-9000
ERF-350W 590-730 -13.3- -fifty three.three 168-234.4 fifty nine-235.five seventy five-280 9500-9600
ERG-400W 590-730 -thirteen.three- -fifty three.3 220-276.6 seventy one-292 ninety-315 9900-10130
ERG-445W 590-730 -thirteen.three- -fifty three.three 244-294.six eighty two-331 90-four hundred 11230-11300
ERG450W 590-730 -13.three- -53.3 275-368.5 ninety one-366 a hundred and ten-four hundred 11230-11300
650-980 ninety eight-196 64.eight-112 135-355 a hundred and sixty-four hundred 8700-8600
650-980 ninety eight-196 80.eight-139 167-439 185-500 9200-9100
650-980 98-176.4 102-174 206-497 250-560 10320-10500
650-980 ninety eight-137.2 124-207 241-473 280-560 10700-11110
(three hundred,four hundred)
590-740 ninety eight-176.four 205-273 380-773 450-900 21350-24200
590-740 ninety eight-176.4 263-428 476-955 560-1000 24200-27600
650-980 -53.3–80 72-121 75.six-121 ninety-a hundred and sixty 6100-6470
650-980 -53.3–80 93.eight-154 99.5-186 110-220 7000-6400
(2505/three hundred)
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.2-a hundred thirty 18-151 45-185 3595
EL82WDB 580-980 nine.8-fifty eight.eight seventy two.eight-161 22-191 forty five-220 3860
EL83WDA 580-980 9.eight-58.nine one hundred and one-213 28.five-202 forty five-220 4300
EL84WDA 580-980 9.8-58.eight 129-267 35.four-252 forty five-280 4720
EL93WDA 580-730 nine.8-49 230-329 56.4-311 seventy five-355 7765
EL94WDA 580-730 9.eight-forty nine 263-373 64-353 75-four hundred 8130
EL95WDA 490-580 nine.8-58.eight 308-434 81.four-414 ninety-450 11500
EL96WDA 580 fifty eight.eight 381 497 560 11500
E397WN 1000-1650 forty 5-nine      
E408WN 870-1650 40 ten-22      
E517WN 980-1580 forty 20-30      
E520WN 930-1550 40 24-45      
E607WN 750-1250 forty 45-76      
E610WN 750-1250 40 seventy five-a hundred thirty      

Spare areas and construction of our roots blower:

Package deal of our Roots Blower

Pack into iron scenario, two layer,blower entire body and motor in lower layer, inlet/out silencer and so forth in upper layer

Roots blower pack strategy identical as iron case, just change to Fumigation Free Plywood Case

Our manufacturing unit is a professional producer of Roots blowers which has more than 20 years’ experience in machinery
production. It is situated in Xihu (West Lake) Dis. East Industrial Park, fifty kilometers to the east of Shan EPT provincial
capital— HangZhou. Our business also has practical traffic transportation, as it is 15 kilometers away from
Diaozhen Town station of HangZhou-HangZhou expressway, and 30 kilometers absent from East HangZhou station of
ZheJiang -ZheJiang expressway.The leading item of our business is ESR -sort Roots Blower. The roots
vacuum pump is a new kind of higher-efficiency roots blower, which is produced independently dependent on the
domestic and foreign innovative technologies. Several patented technologies have been adopted on Roots
Blower, and hence we have manufactured considerable effects in strength conservation and noise reduction, and many others.. So significantly, our
organization has invested a lot more than thirty,000,000 RMB to introduce these kinds of sophisticated specialist equipment as
horizontal machining heart, vertical machining middle, two-way CNC floor planer, CNC lathe, CNC milling
device, CNC planer, plane grinder, cylindrical grinding machine, and 3 coordinates testing equipment.
Aside from, we have taken various steps to standardize the process movement such as operating and cooperating
with several scientific research units, schools and universities at residence and abroad. We also repeatedly try out to
absorb and boost the domestic advanced production systems, so as to market the upgrading and
optimization of the solution and make the product good quality reach the superior amount at house and abroad.
ESR -kind Roots Blower consists of several series these kinds of as 3-leaves Sort, Two-leaves Sort and Centrifugal
Kind,which can be additional divided to hundreds of types. The merchandise are widely used in sewage therapy,
pneumatic conveying,vacuum packaging, aquaculture, foods processing, EPT energy, petrochemical, cement,
mining and other industries. Our products have such advantages as lower sounds, energy conserving, stable good quality,
and lengthy support lifestyle, and many others.. With the sales outlets throughout the domestic cash cities, our merchandise offer properly all
above the region, and have been exported to North The us,Russia, Malaysia, Indonesia, Vietnam, South Africa
and some other nations around the world. Obtaining received the ISO9001 Worldwide Top quality System Certification, we have
proven and enhanced the high quality assurance of the items planning, producing, and installation.
From the method of layout, investigation and development to the concluded items, we have received the entire
process controlled independently, therefore providing the total foundation and reliability ensure for the goods stability
and longevity. Getting a perfect income network and right after-revenue provider, we provide our clients with greater-
quality and far more effective provider.All workers of our firm sincerely welcome the wide masses of buddies to
information, and negotiate enterprise with us.

Our Roots Blower Workshop

         Doosn Horzitonal Device Center

The Software of the Roots Blower

Upkeep and inspection
(one) Check all fasteners and finding pins situations no matter whether they are loosening.
(2) Often verify no matter whether the leakage phenomenon of the body.
(3) Pay attention to lubrication, amount of grease and noises when operating,
decide no matter whether it performs under the required circumstances.
(4) Lubricant & grease: The lubricant is for medium load industrial gear oil
(grade 220, kinematic viscosity of 198 ~ 242mm2 / s 40ºC, flash position ≥ 200ºC)
The grease is butter (synthetic lithium grease penetration 220-250, fall point ≥
190ºC). Replace the lubricant and grease soon after 1st 200 hours managing, and substitute
yet again after a moth working. Later on, change the lubricant and grease in accordance to the
atmosphere and lubricant (grease) quality suggest a appropriate EPT for three
(5) Usually verify the inlet air filter, clear or substitute the filter in time.
(6) Blower overload often not quickly exhibited, so shell out interest to
the intake and exhaust strain, bearing temperature and the present boost traits
of motor to determine regardless of whether the blower operates typically
(7) Prior to disassembling the blower, the assembling relation and dimensions
should be recorded or calculated, make marks on elements to ensure the original
specifications after assembling.
(eight) When newly machine or overhaul, the oil tank must be cleaned before use
and propose replace all grease following 8 hrs managing.

Common failure purpose and troubleshooting

No Failure Feasible factors Elimination techniques
1 Friction
between the
(one) Impurities on the impeller,
ensuing in the gap is way too modest
(two) Equipment use, ensuing in a
large backlash
(three) The equipment is not well set,
can not preserve the impeller
(four) Bearing dress in ensuing in
clearance increasing.
(one) Remove filth and verify
regardless of whether there is damage areas
(2) Alter the gear gap, change
the gears if the gear backlash is
greater than the regular thirty% to
(three)Re-assemble the gears, preserve
the taper speak to area is to seventy five%
(4)Substitute the bearing
2 Collision
in between
impeller and
wall, the
impeller best
and casing
(1) Set up hole is not appropriate
(2) operating pressure is also
substantial, exceeding the specified
(3) Running temperature is too high
(4) Casing or base deformation,
positioning enthusiast failure
(5) Bearing axial place is not great
(one) Modify the gap
(two) Determine causes of
overloading, lowered the stress
to the specified price
(3) Check the installation
accuracy and minimize the pipe
(4) Check out and restore bearings,
and to make sure the clearance
3 Temperature
also higher
(one) Oil in tank is way too significantly, as well
thick or as well filthy
(two) Filter or silencer is blocked
(3)The pressure is increased than
the specified price
(4)Excessive put on of the
impeller, large gap
(five)Inadequate air flow, indoor
temperature is substantial, ensuing in
inlet air’s high temperature
(six) The rotating speed is also low,consequence in the belt slipping.
(one)Lessen the oil level or rely on
(2)Eliminate of blocking objects
(three)Minimizing the force by way of
the blower
(4)Mend its clearance
(five)Open vents to lessen place
(six) Enhance speed to prevent the
belt slipping.
four Inadequate
(1) The inlet filter is blocked
(2) Impeller dress in and the gap
boosts way too a lot
(3) Belt slipping
(four) Big imports stress loss
(five) Pipeline air flow leakage
(1) Clean the filter dust and
(two) Mend the hole
(three)Tighten the belt and enhance
the number of belts
(4)Change the inlet strain to the
specified value
(5) Examine and repair the pipeline
5 Oil leaking or
oil leaking
into the enclosure
(one)Substantial tank situation result in
leakage from the discharge port
(2) Seal put on, resulting in shaft oil spills
(3) The pressure is greater than
the specified worth

(one)Reduce the oil level
(2)Change the seals
(3)Clear the air vents, 2mm diameter faucet is fastened in the
middle chamber, open up the faucet
underneath the wall
6 Irregular
vibration and
(one)Bearing clearance exceeds the
specified value or bearing put on
(2) The gear backlash is too
large, not in a tight set
(three) The overseas objects and dust
triggered by the impeller and the
impeller, the impeller and the
housing collision
(four) the impeller shaft
deformation induced the collision
induced by overload,
(5) Friction in between the impeller
and the inlet housing induced by
(6) Unbalance of the impeller
induced by fouling or foreign
(7) Anchor bolts or other
fasteners are loosened
(one)Change bearings or bearing
(two)Reassemble gear and guarantee
(3)Cleansing blower, verify the
situation is damaged
(4)Check the again pressure, examine
the wheel and modify hole
(five)Verify the filter and back again
strain, enhance the gap
amongst the impeller inlet and the
(six)Cleanse the impeller and the
casing, to make sure that the impeller
clearance operate
(7) Tighten the anchor bolts and
leveling the base.
7 Motor
(1)When compared with the required
strain, the strain big difference
is big that the back again pressure or
the inlet stress is substantial
(two) Compared with the
tools specifications, blower
circulation is as well massive, so its strain
(three)Inlet filter is blocked, or outlet
pipe is obstructed or blocked
(4) Collusion or friction (stuck)
rotating areas
(5) The oil amount is as well higher
(six) Slender V-belt is overheat,
vibration is way too big, or pulley
is as well modest
(one) Reduce the stress to the
specified worth
(two) Exhaust the excessive gas into
the environment or lessen the
blower velocity
(3) Eliminate the obstructions
(4)Immediately shut down, examine
the purpose
(five) Modify the oil to the proper
(6) Check the belt pressure, and
changed it with big diameter

Our Support

1. Pre offer service                                                                              two. Right after sell service                                          
a. suggest the ideal model                                             c. on-line technological assist,                                                                                   
b. factory tour                                                                              d. entire daily life spare areas and techinical assistance


twelve months gurantee for our roots blowers

/ The use of first gear manufacturer’s (OEM) part numbers or trademarks , e.g. CASE® and John Deere® are for reference needs only and for indicating product use and compatibility. Our business and the detailed EPT parts contained herein are not sponsored, accepted, or created by the OEM. /

Elt-125s  China  in   Salem India   fenner gear coupling  factory  High  in   Jakarta Indonesia   fenner grid coupling  factory  Efficieny Low Energy Roots Blower with top quality lowest price