Anti China in Jeonju Republic of Korea kop flex gear coupling shop Corrosion in Ekurhuleni South Africa gear coupling 102 manufacturer High Efficiency Roots Vacuum Pump with top quality lowest price

Anti  China  in   Jeonju Republic of Korea   kop flex gear coupling  shop  Corrosion  in   Ekurhuleni South Africa   gear coupling 102  manufacturer  High Efficiency Roots Vacuum Pump with top quality lowest price

We – EPG Group the most significant couplings and gears manufacturing unit in China with five distinct branches. For much more particulars: Cellular/whatsapp/telegram/Kakao us at: 0086-13083988828 /

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

Variety Diameter Price of flow Pressure
ESR-MJ(Intensive Variety) Φ50~Φ300mm .5~140m³/min nine.8KPa~98.8Kpa
ESR(Normal Type) Φ50~Φ350mm .5~140m³/min nine.8KPa~78.4Kpa
ESR-H(Large-strain Variety) Φ50~Φ350mm .seven~160m³/min 58.8KPa~98.8Kpa
ESR-V(Vacuum Pump) Φ50~Φ350mm .five~160m³/min nine.8KPa~53.3Kpa
EL Series Φ200~Φ600mm twenty.three~750m³/min 9.8KPa~58.8Kpa
Multistage Centrifugal Blower
or C-Series
Φ250~Φ500mm fifty~500m³/min 9.8KPa~98Kpa
ERR-ERG Kind Φ250~Φ500mm 120~420m³/min 9.8KPa~ninety eight.8Kpa

The working principle of the a few-blade roots blower: two a few-lobed rotors are arranged in the cavity, and the
suction port and the discharge port are opened on the two sides of the cavity. Through the motion 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 gas in the chamber is pushed to attain the
function of blowing.

Feature of our roots blower:
one. Massive adjustment of the air quantity
two. Reduced Sound
three. Substantial efficiency
4. Lower energy cosumption
five. Prolonged time life
6. Reliable managing, easy servicing,little footprint

The parameters of our roots blower:

Sort Ratary Speed
Force Rise
Shaft Power
Motor Unit Maximn
Electrical power
ESR-fifty 1100-2120 nine.eight-58.8 .sixty five-two.58 .3-three.fifty four .seventy five-4 128-158
ESR-sixty five 1100-2130 9.eight-fifty eight.8 .ninety four-three.66 .38-4.forty six .seventy five-5.five 155-185
ESR-80 1140-1900 9.8-fifty eight.eight 2.34-5.43 1.04-seven.42 2.two-11 one hundred fifty five-277
ESR-one hundred 1060-1980 9.eight-58.8 4.fifty seven-9.05 one.35-12.15 three-15 309-377
ESR-125 980-1850 9.eight-58.8 5.35-twelve.4 1.sixty five-5.19 5.five-eighteen.five 408-451
ESR-125C 970-1830 nine.8-58.8 7.five-17.57 three.2-eighteen.five 4-22 408-451
ESR-a hundred and fifty 810-1730 nine.8-58.eight ten.37-27.fifteen three.eighty four-forty.82 seven.five-45 688-848
ESR-a hundred seventy five 970-1520 nine.8-58.8 19.65-36.sixty five 7.two-45.95 eleven-fifty five 980-1080
ESR-200B 740-1450 9.eight-58.8 19.sixty five-44.eight ten.15-sixty.forty four 15-75 1272-1546
ESR-200 810-1480 nine.8-58.eight 27.65-fifty nine.two eight.05-eighty,twelve 15-ninety 1272-1546
ESR-250B 1100-1480 9.eight-58.eight fifty four.seventy seven-seventy seven.fifty five 19.ninety seven-90.97 thirty-110 1490-2454
ESR-250 990-1480 nine.eight-fifty eight.8 sixty one.four-97.52 20.1-117.three 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.8-fifty eight.eight 78.41-177.31   fifty five-250  
ESR-50H 1230-2120 63.7-98 .45-two.02 2.05-6.12 3-7.five one hundred sixty–170
ESR-65H 1240-2130 eight .78-2.53 two.89-seven.55 four-11 198-230
ESR-80H 1140-1900 eight one.eighty two-4.55 4.09-10.1 five.5-fifteen 316-326
ESR-100H 1060-1980 63.7-ninety eight 2.sixty five-eight.06 six.36-seventeen.2 seven.five-22 398-459
ESR-125H 980-1850 sixty three.7-ninety eight 4.64-11.23 8.ninety two-24.two 11-thirty 544-630
ESR-150H 810-1730 eight nine.fifty three-25.seventy six seventeen.sixteen-sixty five eighteen.five-75 752-1571
ESR-200H 810-1480 sixty three.7-ninety eight twenty five.34-fifty six.ninety two 42.34-one hundred twenty fifty five-132 1426-1934
ESR-250H 990-1480 58-ninety 83.2-205 90-220 2980-3468
ESR300H 990-1480 sixty three.7-98 132-280 3476-3998
ERF-245 650-980 9.eight-ninety eight forty seven.5-97.four sixteen-183 18.5-200 3630-3690
ERF-250 650-980 9.eight-98 61.six-one hundred twenty.four 19-227 22-250 4450-4500
ERF-290 650-980 9.eight-seventy eight.4 ninety two.3-128 22-213 thirty-250 4890-4710
ERF-295 650-980 9.8-seventy eight.four 97.three-152.5 23-227 30-250 4890-4880
ERF-297 650-980 9.eight-seventy eight.four 87.five-167.six 26-249 30-280 5330-5520
ERF-300 650-980 9.eight-seventy eight.four a hundred and one.5-188.7 29-278 37-315 5330-5520
ERF-350 650-980 nine.8-seventy eight.4 126-224.nine 34-249 forty five-280 5210-6470
ERG-300 590-730 9.eight-ninety eight 128.three-196 38-362 45-400 9440-15710
ERG-350 590-730 nine.8-ninety eight 159.3-231.6 43-420 55-450 9700-1571
ERG-400 590-730 9.8-83.three fifty two-449 75-500 10090-11390
ERG-445 590-730 9.eight-73.5 229.7-327.8 58-477 75-560 10600-12230
ERG-450 590-730 nine.eight-73.5 262.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 90-560 12790-14620
ERF-240-V 650-980 -nine.eight- -49 38.1-seventy eight thirteen-76 18.5-90 3420-3285
ERF-245-V 650-980 -nine.eight- -49 forty seven.5-ninety seven.4 16-95 22-one hundred ten 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-one hundred forty four 22-136 thirty-one hundred sixty 4415-4270
ERF-295-V 650-980 -nine.8- -forty nine 76.six-152 23-145 thirty-160 4425-4485
ERF-297-V 650-980 -9.eight- -49 84.3-166.8 26-a hundred and sixty thirty-180 5000-4980
ERF-three hundred-V 650-980 -9.8- -forty nine ninety seven-192 29-178 37-two hundred 5000-4980
ERF-350-V 650-980 -9.eight- -49 116-225 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 -9.8- -49 163-231 forty three-216 fifty five-250 9500-9470
ERG-400V 590-730 -nine.eight- -49 199-290 52-269 75-315 9900-10130
ERG-445V 590-730 -9.eight- -forty nine 224.8-326.nine 58-303 seventy five-355 9900-10130
ERG-450V 590-730 -9.8- -forty nine 255-365 64-335 seventy five-400 11230-11300
ERG-500V 590-730 -nine.8- -forty nine 314-452 78-412 132-450 13630-13850
ERF-245W 650-980 -thirteen.three- -53.3 fifty three.five-101 21.five-102 30-110 3630-3360
ERF-250W 650-980 -thirteen.3- -53.3 sixty nine-127 26.5-127 thirty-a hundred and sixty 3985-4115
ERF-290W 650-980 -thirteen.three- -fifty three.3 82.6-150 30.5-149 37-185 4340-4580
ERF-295W 650-980 -13.three- -53.three 87-158 32-158 37-185 4440-4580
ERF-297W 650-980 -thirteen.3- -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 -thirteen.three- -53.3 129-230 fifty-230 seventy five-250 5840-5670
ERG-300W 590-730 -thirteen.three- -fifty three.3 142-197 fifty two-201 seventy five-220 9100-9000
ERF-350W 590-730 -13.three- -fifty three.3 168-234.4 fifty nine-235.five 75-280 9500-9600
ERG-400W 590-730 -thirteen.three- -fifty three.3 220-276.six seventy one-292 ninety-315 9900-10130
ERG-445W 590-730 -13.three- -fifty three.3 244-294.6 82-331 90-four hundred 11230-11300
ERG450W 590-730 -thirteen.three- -fifty three.three 275-368.five 91-366 one hundred ten-four hundred 11230-11300
650-980 ninety eight-196 64.8-112 135-355 a hundred and sixty-400 8700-8600
650-980 98-196 80.8-139 167-439 185-five hundred 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.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 -53.3–eighty seventy two-121 75.six-121 ninety-one hundred sixty 6100-6470
650-980 -fifty three.three–eighty 93.8-154 99.five-186 110-220 7000-6400
650-980 -fifty three.three–eighty 116-189 115-220 132-250 7750-7760
EL81WD 580-980 nine.eight-fifty eight.eight fifty four.2-130 18-151 45-185 3595
EL82WDB 580-980 nine.8-58.8 seventy two.8-161 22-191 45-220 3860
EL83WDA 580-980 nine.8-58.nine one zero one-213 28.five-202 forty five-220 4300
EL84WDA 580-980 nine.eight-fifty eight.eight 129-267 35.four-252 forty five-280 4720
EL93WDA 580-730 9.8-forty nine 230-329 fifty six.four-311 seventy five-355 7765
EL94WDA 580-730 9.eight-forty nine 263-373 64-353 75-400 8130
EL95WDA 490-580 9.8-fifty eight.8 308-434 81.four-414 90-450 11500
EL96WDA 580 58.8 381 497 560 11500
E397WN one thousand-1650 forty five-9      
E408WN 870-1650 forty ten-22      
E517WN 980-1580 forty 20-30      
E520WN 930-1550 forty 24-forty five      
E607WN 750-1250 40 45-76      
E610WN 750-1250 forty 75-one hundred thirty      

Spare parts and composition of our roots blower:

Package deal of our Roots Blower

Pack into iron scenario, two layer,blower physique and motor in lower layer, inlet/out silencer etc in higher layer

Roots blower pack approach identical as iron situation, just change to Fumigation Totally free Plywood Circumstance

Our manufacturing facility is a skilled producer of Roots blowers which has in excess of 20 years’ experience in equipment
manufacturing. It is located in Xihu (West Lake) Dis. East Industrial Park, 50 kilometers to the east of Shan EPT provincial
funds— HangZhou. Our organization also has convenient targeted traffic transportation, as it is 15 kilometers absent from
Diaozhen Town station of HangZhou-HangZhou expressway, and thirty kilometers away from East HangZhou station of
ZheJiang -ZheJiang expressway.The leading merchandise of our organization is ESR -sort Roots Blower. The roots
vacuum pump is a new type of large-performance roots blower, which is produced independently based on the
domestic and overseas advanced technologies. Several patented technologies have been adopted on Roots
Blower, and therefore we have created substantial effects in vitality conservation and noise reduction, etc.. So much, our
business has invested a lot more than thirty,000,000 RMB to introduce such innovative professional gear as
horizontal machining center, vertical machining centre, two-way CNC surface planer, CNC lathe, CNC milling
equipment, CNC planer, aircraft grinder, cylindrical grinding machine, and 3 coordinates screening device.
Besides, we have taken numerous actions to standardize the process movement such as operating and cooperating
with many scientific research units, schools and universities at home and overseas. We also constantly consider to
take in and improve the domestic advanced creation technologies, so as to advertise the upgrading and
optimization of the merchandise and make the product high quality get to the superior degree at home and overseas.
ESR -type Roots Blower includes a number of series this sort of as Three-leaves Sort, Two-leaves Kind and Centrifugal
Kind,which can be additional divided to hundreds of versions. The items are commonly utilised in sewage treatment,
pneumatic conveying,vacuum packaging, aquaculture, foodstuff processing, EPT electrical power, petrochemical, cement,
mining and other industries. Our items have these kinds of rewards as minimal sounds, vitality saving, steady top quality,
and lengthy services daily life, etc.. With the product sales outlets throughout the domestic money cities, our items market nicely all
more than the country, and have been exported to North America,Russia, Malaysia, Indonesia, Vietnam, South Africa
and some other countries. Having got the ISO9001 International Good quality Technique Certification, we have
set up and enhanced the good quality assurance of the products planning, manufacturing, and set up.
From the method of layout, research and improvement to the completed merchandise, we have acquired the entire
approach controlled independently, as a result supplying the total basis and dependability promise for the items balance
and durability. Getting a perfect sales community and after-sales service, we give our consumers with higher-
quality and much more productive services.All employees of our company sincerely welcome the broad masses of close friends to
information, and negotiate enterprise with us.

Our Roots Blower Workshop

         Doosn Horzitonal Machine Center

The Application of the Roots Blower

Routine maintenance and inspection
(one) Verify all fasteners and locating pins conditions whether or not they are loosening.
(two) Constantly examine regardless of whether the leakage phenomenon of the entire body.
(3) Pay focus to lubrication, amount of grease and noises when running,
determine whether it performs beneath the essential situations.
(4) Lubricant & grease: The lubricant is for medium load industrial equipment oil
(quality 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 right after 1st 200 several hours running, and substitute
once again following a moth running. Later on, substitute the lubricant and grease in accordance to the
environment and lubricant (grease) good quality propose a ideal EPT for a few
(5) Always check the inlet air filter, cleanse or substitute the filter in time.
(six) Blower overload often not instantly displayed, so pay interest to
the ingestion and exhaust pressure, bearing temperature and the recent increase tendencies
of motor to determine no matter whether the blower performs generally
(seven) Before disassembling the blower, the assembling relation and dimensions
have to be recorded or measured, make marks on factors to make sure the authentic
needs right after assembling.
(8) When newly equipment or overhaul, the oil tank ought to be cleaned just before use
and propose replace all grease right after eight hrs running.

Widespread failure explanation and troubleshooting

No Failure Achievable causes Elimination methods
1 Friction
in between the
(1) Impurities on the impeller,
ensuing in the gap is way too modest
(2) Gear put on, resulting in a
huge backlash
(three) The gear is not nicely fixed,
can not maintain the impeller
(4) Bearing wear ensuing in
clearance rising.
(one) Get rid of dust and examine
no matter whether there is harm elements
(two) Modify the gear gap, replace
the gears if the gear backlash is
better than the typical thirty% to
(3)Re-assemble the gears, maintain
the taper get in touch with location is to 75%
(four)Substitute the bearing
two Collision
impeller and
wall, the
impeller leading
and casing
(one) Set up hole is not appropriate
(2) running pressure is too
high, exceeding the specified
(3) Operating temperature is as well high
(four) Casing or foundation deformation,
positioning admirer failure
(five) Bearing axial area is not good
(one) Alter the hole
(two) Discover brings about of
overloading, diminished the pressure
to the specified benefit
(3) Check the set up
accuracy and lessen the pipe
(four) Check and restore bearings,
and to make certain the clearance
three Temperature
also higher
(one) Oil in tank is also considerably, as well
thick or way too soiled
(two) Filter or silencer is blocked
(three)The stress is greater than
the specified benefit
(four)Excessive dress in of the
impeller, massive gap
(5)Very poor ventilation, indoor
temperature is high, resulting in
inlet air’s large temperature
(six) The rotating speed is also reduced,result in the belt slipping.
(one)Decrease the oil stage or depend on
(2)Remove of blocking objects
(three)Lowering the strain via
the blower
(4)Fix its clearance
(5)Open up vents to minimize place
(six) Boost velocity to prevent the
belt slipping.
4 Insufficient
(one) The inlet filter is blocked
(2) Impeller use and the gap
increases as well a lot
(three) Belt slipping
(4) Massive imports force reduction
(five) Pipeline ventilation leakage
(1) Clean the filter dust and
(2) Restore the gap
(3)Tighten the belt and improve
the number of belts
(4)Modify the inlet pressure to the
specified benefit
(five) Check out and restore the pipeline
five Oil leaking or
oil leaking
into the enclosure
(one)High tank position lead to
leakage from the discharge port
(2) Seal wear, ensuing in shaft oil spills
(3) The force is greater than
the specified price

(1)Minimize the oil level
(2)Substitute the seals
(three)Very clear the air vents, 2mm diameter faucet is fixed in the
center chamber, open the faucet
beneath the wall
six Irregular
vibration and
(1)Bearing clearance exceeds the
specified price or bearing use
(two) The equipment backlash is too
massive, not in a restricted mounted
(three) The foreign objects and dust
induced by the impeller and the
impeller, the impeller and the
housing collision
(4) the impeller shaft
deformation caused the collision
caused by overload,
(5) Friction in between the impeller
and the inlet housing brought on by
(six) Unbalance of the impeller
brought on by fouling or overseas
(7) Anchor bolts or other
fasteners are loosened
(one)Exchange bearings or bearing
(2)Reassemble gear and ensure
(three)Cleansing blower, verify the
circumstance is destroyed
(4)Check the back force, verify
the wheel and alter gap
(five)Check out the filter and back
pressure, enhance the hole
between the impeller inlet and the
(6)Clear the impeller and the
casing, to ensure that the impeller
clearance perform
(seven) Tighten the anchor bolts and
leveling the foundation.
7 Motor
(one)In comparison with the essential
strain, the force distinction
is huge that the back again pressure or
the inlet force is higher
(two) In contrast with the
tools needs, blower
stream is way too large, so its pressure
(3)Inlet filter is blocked, or outlet
pipe is obstructed or blocked
(4) Collusion or friction (caught)
rotating areas
(five) The oil level is as well large
(6) Slender V-belt is overheat,
vibration is also big, or pulley
is also little
(one) Minimize the force to the
specified price
(two) Exhaust the excess gasoline into
the atmosphere or minimize the
blower speed
(three) Get rid of the obstructions
(4)Instantly shut down, examine
the cause
(5) Adjust the oil to the right
(six) Check the belt stress, and
changed it with big diameter

Our Service

1. Pre promote service                                                                              2. Soon after market service                                          
a. advocate the suited model                                             c. on the web technological help,                                                                                   
b. manufacturing unit tour                                                                              d. whole life spare parts and techinical assistance


12 months gurantee for our roots blowers

/ The use of authentic tools manufacturer’s (OEM) portion quantities or trademarks , e.g. CASE® and John Deere® are for reference reasons only and for indicating item use and compatibility. Our business and the shown EPT elements contained herein are not sponsored, accepted, or produced by the OEM. /

Anti  China  in   Jeonju Republic of Korea   kop flex gear coupling  shop  Corrosion  in   Ekurhuleni South Africa   gear coupling 102  manufacturer  High Efficiency Roots Vacuum Pump with top quality lowest price

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