High China in Tanta Egypt gear grip flexible shaft couplings factory Efficiency in Pretoria South Africa dodge gear coupling manufacturer Low Energy Roots Vacuum Pump for Biogas Transport with top quality lowest price

High  China  in   Tanta Egypt   gear grip flexible shaft couplings  factory  Efficiency  in   Pretoria South Africa   dodge gear coupling  manufacturer  Low Energy Roots Vacuum Pump for Biogas Transport with top quality lowest price

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

We make all sorts of roots blower, centrifugal blower, Our Major products are as underneath:

Type Diameter Fee of movement Force
ESR-MJ(Intense Kind) Φ50~Φ300mm .5~140m³/min nine.8KPa~ninety eight.8Kpa
ESR(Ordinary Variety) Φ50~Φ350mm .five~140m³/min 9.8KPa~78.4Kpa
ESR-H(Higher-strain Type) Φ50~Φ350mm .7~160m³/min fifty eight.8KPa~ninety eight.8Kpa
ESR-V(Vacuum Pump) Φ50~Φ350mm .5~160m³/min 9.8KPa~53.3Kpa
EL Collection Φ200~Φ600mm twenty.three~750m³/min 9.8KPa~58.8Kpa
Multistage Centrifugal Blower
or C-Collection
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 three-blade roots blower: two a few-lobed rotors are arranged in the cavity, and the
suction port and the discharge port are opened on each sides of the cavity. By means 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 obtain the
purpose of blowing.

Characteristic of our roots blower:
1. Huge adjustment of the air volume
two. Low Sounds
three. Higher performance
four. Lower energy cosumption
5. Lengthy time existence
6. Dependable working, simple maintenance,tiny footprint

The parameters of our roots blower:

Kind Ratary Velocity
Strain Increase
Shaft Power
Motor Device Maximn
ESR-50 1100-2120 nine.8-fifty eight.eight .sixty five-two.58 .3-3.54 .75-4 128-158
ESR-sixty five 1100-2130 9.eight-fifty eight.eight .94-3.66 .38-4.forty six .seventy five-five.five 155-185
ESR-80 1140-1900 9.eight-fifty eight.8 two.34-5.43 one.04-7.forty two two.two-eleven one hundred fifty five-277
ESR-a hundred 1060-1980 9.8-58.eight four.fifty seven-nine.05 1.35-twelve.fifteen three-15 309-377
ESR-one hundred twenty five 980-1850 nine.eight-fifty eight.8 5.35-12.4 1.sixty five-5.19 five.5-eighteen.five 408-451
ESR-125C 970-1830 nine.8-58.eight seven.5-seventeen.57 3.two-18.five 4-22 408-451
ESR-a hundred and fifty 810-1730 9.8-58.eight ten.37-27.fifteen three.84-40.82 7.five-forty five 688-848
ESR-one hundred seventy five 970-1520 nine.8-58.eight 19.65-36.sixty five seven.two-45.ninety five eleven-55 980-1080
ESR-200B 740-1450 nine.8-fifty eight.eight 19.sixty five-forty four.eight ten.15-sixty.forty four 15-seventy five 1272-1546
ESR-200 810-1480 9.8-58.8 27.sixty five-fifty nine.two 8.05-80,twelve 15-90 1272-1546
ESR-250B 1100-1480 nine.eight-fifty eight.8 54.seventy seven-seventy seven.fifty five 19.ninety seven-ninety.ninety seven thirty-a hundred and ten 1490-2454
ESR-250 990-1480 nine.8-fifty eight.eight sixty one.4-ninety seven.52 20.1-117.3 30-132 1490-2454
ESR-300 990-1480 9.8-fifty eight.eight 87.one-138.1 26.4-167.eight 37-185 3326-3446
ESR-350 730-1480 nine.eight-58.eight 78.41-177.31   55-250  
ESR-50H 1230-2120 63.7-98 .forty five-2.02 two.05-6.12 3-7.five one hundred sixty–170
ESR-65H 1240-2130 63.7-98 .seventy eight-2.fifty three 2.89-7.fifty five four-eleven 198-230
ESR-80H 1140-1900 63.7-98 one.eighty two-four.55 4.09-10.one five.five-15 316-326
ESR-100H 1060-1980 63.7-98 2.sixty five-8.06 six.36-17.two 7.5-22 398-459
ESR-125H 980-1850 63.seven-ninety eight four.sixty four-11.23 eight.ninety two-24.2 eleven-30 544-630
ESR-150H 810-1730 sixty three.7-98 9.53-25.seventy six seventeen.sixteen-sixty five 18.5-75 752-1571
ESR-200H 810-1480 sixty three.seven-98 25.34-fifty six.ninety two 42.34-one hundred twenty 55-132 1426-1934
ESR-250H 990-1480 63.7-ninety eight 58-ninety three.seven 83.2-205 ninety-220 2980-3468
ESR300H 990-1480 sixty three.7-98 86.9-134.one 114.seven-270 132-280 3476-3998
ERF-245 650-980 nine.8-ninety eight 47.five-ninety seven.4 sixteen-183 18.five-two hundred 3630-3690
ERF-250 650-980 nine.8-98 61.6-120.4 19-227 22-250 4450-4500
ERF-290 650-980 nine.8-seventy eight.4 ninety two.three-128 22-213 thirty-250 4890-4710
ERF-295 650-980 nine.eight-seventy eight.4 97.3-152.five 23-227 thirty-250 4890-4880
ERF-297 650-980 nine.eight-78.4 87.5-167.six 26-249 30-280 5330-5520
ERF-300 650-980 9.eight-78.four 101.5-188.7 29-278 37-315 5330-5520
ERF-350 650-980 9.8-seventy eight.4 126-224.9 34-249 forty five-280 5210-6470
ERG-300 590-730 nine.8-ninety eight 128.3-196 38-362 45-400 9440-15710
ERG-350 590-730 nine.eight-ninety eight 159.3-231.6 43-420 55-450 9700-1571
ERG-four hundred 590-730 nine.8-eighty three.3 203.1-290.nine fifty two-449 seventy five-five hundred 10090-11390
ERG-445 590-730 9.eight-73.five 229.seven-327.8 fifty eight-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 9.8-63.seven 327.four-452.four seventy eight-529 ninety-560 12790-14620
ERF-240-V 650-980 -nine.eight- -49 38.1-seventy eight thirteen-76 eighteen.5-ninety 3420-3285
ERF-245-V 650-980 -nine.eight- -forty nine 47.5-97.four sixteen-95 22-one hundred ten 3425-3360
ERF-250-V 650-980 -9.8- -forty nine 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-160 4415-4270
ERF-295-V 650-980 -9.8- -49 seventy six.six-152 23-a hundred forty five thirty-one hundred sixty 4425-4485
ERF-297-V 650-980 -9.8- -forty nine eighty four.three-166.8 26-a hundred and sixty 30-one hundred eighty 5000-4980
ERF-three hundred-V 650-980 -nine.8- -forty nine ninety seven-192 29-178 37-200 5000-4980
ERF-350-V 650-980 -9.8- -49 116-225 34-209 forty five-250 5400-5700
ERG-300V 590-730 -nine.8- -49 133-193 38-184 45-220 7800-9100
ERG-350V 590-730 -nine.8- -forty nine 163-231 43-216 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 -9.8- -forty nine 224.eight-326.9 58-303 seventy five-355 9900-10130
ERG-450V 590-730 -9.eight- -49 255-365 64-335 75-four hundred 11230-11300
ERG-500V 590-730 -nine.eight- -49 314-452 seventy eight-412 132-450 13630-13850
ERF-245W 650-980 -13.3- -fifty three.three 53.five-one hundred and one 21.five-102 thirty-a hundred and ten 3630-3360
ERF-250W 650-980 -thirteen.three- -fifty three.3 sixty nine-127 26.five-127 thirty-one hundred sixty 3985-4115
ERF-290W 650-980 -13.three- -fifty three.three eighty two.6-one hundred fifty thirty.5-149 37-185 4340-4580
ERF-295W 650-980 -13.three- -fifty three.3 87-158 32-158 37-185 4440-4580
ERF-297W 650-980 -13.three- -53.three 95-174 36-174 forty five-two hundred 5230-5130
ERF-300W 650-980 -thirteen.3- -fifty three.3 109-195 40-193 55-220 5230-5130
ERF-350W 650-980 -13.three- -53.3 129-230 50-230 seventy five-250 5840-5670
ERG-300W 590-730 -13.3- -fifty three.3 142-197 fifty two-201 seventy five-220 9100-9000
ERF-350W 590-730 -thirteen.three- -fifty three.three 168-234.4 fifty nine-235.5 75-280 9500-9600
ERG-400W 590-730 -13.3- -53.3 220-276.six seventy one-292 90-315 9900-10130
ERG-445W 590-730 -thirteen.three- -53.three 244-294.six 82-331 ninety-four hundred 11230-11300
ERG450W 590-730 -thirteen.three- -fifty three.3 275-368.5 ninety one-366 110-400 11230-11300
650-980 98-196 sixty four.8-112 135-355 one hundred sixty-four hundred 8700-8600
650-980 98-196 80.eight-139 167-439 185-five hundred 9200-9100
650-980 ninety eight-176.four 102-174 206-497 250-560 10320-10500
650-980 ninety eight-137.2 124-207 241-473 280-560 10700-11110
(300,four hundred)
590-740 98-176.4 205-273 380-773 450-900 21350-24200
590-740 98-176.four 263-428 476-955 560-a thousand 24200-27600
650-980 -fifty three.3–eighty 72-121 75.6-121 90-one hundred sixty 6100-6470
650-980 -fifty three.three–80 93.8-154 99.5-186 110-220 7000-6400
650-980 -fifty three.three–eighty 116-189 one hundred fifteen-220 132-250 7750-7760
EL81WD 580-980 9.8-58.8 54.2-a hundred thirty 18-151 45-185 3595
EL82WDB 580-980 9.8-fifty eight.eight seventy two.eight-161 22-191 45-220 3860
EL83WDA 580-980 9.8-58.nine one zero one-213 28.5-202 45-220 4300
EL84WDA 580-980 9.8-fifty eight.eight 129-267 35.4-252 forty five-280 4720
EL93WDA 580-730 nine.8-forty nine 230-329 fifty six.4-311 seventy five-355 7765
EL94WDA 580-730 9.8-forty nine 263-373 sixty four-353 seventy five-four hundred 8130
EL95WDA 490-580 nine.8-58.8 308-434 eighty one.four-414 90-450 11500
EL96WDA 580 fifty eight.eight 381 497 560 11500
E397WN 1000-1650 40 five-nine      
E408WN 870-1650 40 10-22      
E517WN 980-1580 40 20-30      
E520WN 930-1550 40 24-45      
E607WN 750-1250 forty forty five-seventy six      
E610WN 750-1250 forty seventy five-a hundred thirty      

Spare areas and structure of our roots blower:

Deal of our Roots Blower

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

Roots blower pack strategy identical as iron circumstance, just modify to Fumigation Free Plywood Case

Our manufacturing unit is a professional producer of Roots blowers which has above 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
money— HangZhou. Our firm also has practical visitors transportation, as it is fifteen kilometers away from
Diaozhen Town station of HangZhou-HangZhou expressway, and thirty kilometers away from East HangZhou station of
ZheJiang -ZheJiang expressway.The major product of our organization is ESR -sort Roots Blower. The roots
vacuum pump is a new sort of higher-efficiency roots blower, which is designed independently dependent on the
domestic and overseas innovative technologies. Several patented technologies have been adopted on Roots
Blower, and thus we have created significant outcomes in strength conservation and noise reduction, and so on.. So significantly, our
firm has invested far more than thirty,000,000 RMB to introduce such sophisticated expert gear as
horizontal machining heart, vertical machining middle, two-way CNC surface area planer, CNC lathe, CNC milling
machine, CNC planer, plane grinder, cylindrical grinding machine, and a few coordinates screening equipment.
Apart from, we have taken different measures to standardize the approach circulation such as working and cooperating
with several scientific research units, colleges and universities at house and overseas. We also continuously try to
take in and boost the domestic innovative manufacturing technologies, so as to advertise the upgrading and
optimization of the item and make the item good quality reach the superior level at home and abroad.
ESR -type Roots Blower consists of many collection this kind of as A few-leaves Variety, Two-leaves Sort and Centrifugal
Kind,which can be further divided to hundreds of versions. The goods are commonly utilized in sewage treatment,
pneumatic conveying,vacuum packaging, aquaculture, meals processing, EPT power, petrochemical, cement,
mining and other industries. Our products have this kind of rewards as reduced sounds, power conserving, secure top quality,
and long provider daily life, and many others.. With the product sales outlets throughout the domestic capital towns, our goods promote nicely all
above the country, and have been exported to North The united states,Russia, Malaysia, Indonesia, Vietnam, South Africa
and some other international locations. Having received the ISO9001 International Quality Technique Certification, we have
recognized and improved the good quality assurance of the goods designing, production, and set up.
From the approach of layout, investigation and development to the finished merchandise, we have obtained the complete
process managed independently, hence offering the total basis and trustworthiness ensure for the products balance
and durability. Possessing a perfect sales network and after-income services, we supply our consumers with increased-
high quality and far more productive services.All personnel of our firm sincerely welcome the wide masses of friends to
guidebook, and negotiate organization with us.

Our Roots Blower Workshop

         Doosn Horzitonal Equipment Centre

The Application of the Roots Blower

Upkeep and inspection
(one) Verify all fasteners and locating pins situations no matter whether they are loosening.
(2) Constantly verify whether the leakage phenomenon of the human body.
(three) Shell out interest to lubrication, sum of grease and noises when working,
decide no matter whether it performs below the needed problems.
(four) Lubricant & grease: The lubricant is for medium load industrial equipment oil
(grade 220, kinematic viscosity of 198 ~ 242mm2 / s 40ºC, flash level ≥ 200ºC)
The grease is butter (synthetic lithium grease penetration 220-250, drop position ≥
190ºC). Change the lubricant and grease after 1st 200 hours working, and replace
once again following a moth managing. Later, substitute the lubricant and grease in accordance to the
surroundings and lubricant (grease) top quality suggest a suited EPT for a few
(five) Usually check out the inlet air filter, clean or substitute the filter in time.
(6) Blower overload occasionally not immediately displayed, so spend interest to
the consumption and exhaust pressure, bearing temperature and the current improve developments
of motor to determine whether or not the blower performs typically
(seven) Just before disassembling the blower, the assembling relation and dimensions
should be recorded or calculated, make marks on parts to make sure the original
needs soon after assembling.
(8) When newly device or overhaul, the oil tank must be cleaned ahead of use
and propose substitute all grease after eight hours managing.

Frequent failure reason and troubleshooting

No Failure Possible reasons Elimination techniques
one Friction
among the
(one) Impurities on the impeller,
ensuing in the gap is also little
(two) Gear wear, ensuing in a
huge backlash
(3) The equipment is not effectively fastened,
can not sustain the impeller
(four) Bearing dress in resulting in
clearance escalating.
(one) Remove grime and verify
whether there is harm areas
(two) Change the equipment hole, substitute
the gears if the equipment backlash is
higher than the regular thirty% to
(three)Re-assemble the gears, keep
the taper get in touch with region is to 75%
(4)Change the bearing
2 Collision
in between
impeller and
wall, the
impeller top
and casing
(one) Installation gap is not appropriate
(two) functioning force is as well
large, exceeding the specified
(3) Running temperature is as well high
(4) Casing or foundation deformation,
positioning supporter failure
(5) Bearing axial area is not very good
(one) Change the hole
(2) Identify causes of
overloading, diminished the force
to the specified worth
(three) Check out the installation
precision and minimize the pipe
(4) Examine and mend bearings,
and to make certain the clearance
three Temperature
too large
(one) Oil in tank is way too much, way too
thick or too filthy
(two) Filter or silencer is blocked
(three)The stress is higher than
the specified benefit
(four)Abnormal dress in of the
impeller, huge hole
(5)Very poor air flow, indoor
temperature is high, resulting in
inlet air’s higher temperature
(6) The rotating velocity is also minimal,consequence in the belt slipping.
(1)Reduce the oil level or depend on
(2)Eliminate of blocking objects
(3)Minimizing the pressure via
the blower
(4)Restore its clearance
(five)Open up vents to lessen space
(6) Enhance speed to stop the
belt slipping.
4 Inadequate
(1) The inlet filter is blocked
(2) Impeller put on and the hole
boosts way too much
(3) Belt slipping
(4) Massive imports pressure decline
(five) Pipeline air flow leakage
(1) Clean the filter dust and
(two) Repair the gap
(three)Tighten the belt and improve
the amount of belts
(four)Adjust the inlet strain to the
specified price
(five) Verify and mend the pipeline
5 Oil leaking or
oil leaking
into the enclosure
(1)Substantial tank placement trigger
leakage from the discharge port
(2) Seal use, ensuing in shaft oil spills
(3) The strain is larger than
the specified benefit

(1)Lessen the oil degree
(2)Substitute the seals
(3)Very clear the air vents, 2mm diameter faucet is set in the
middle chamber, open up the faucet
under the wall
six Irregular
vibration and
(1)Bearing clearance exceeds the
specified value or bearing use
(2) The gear backlash is also
large, not in a tight fastened
(3) The international objects and dust
brought on by the impeller and the
impeller, the impeller and the
housing collision
(four) the impeller shaft
deformation induced the collision
triggered by overload,
(five) Friction in between the impeller
and the inlet housing triggered by
(six) Unbalance of the impeller
triggered by fouling or overseas
entire body
(7) Anchor bolts or other
fasteners are loosened
(one)Substitute bearings or bearing
(two)Reassemble equipment and make certain
(three)Cleaning blower, verify the
circumstance is ruined
(four)Check out the again stress, check out
the wheel and modify hole
(5)Check out the filter and back
pressure, boost the gap
among the impeller inlet and the
(6)Cleanse the impeller and the
casing, to make sure that the impeller
clearance operate
(7) Tighten the anchor bolts and
leveling the base.
seven Motor
(1)In comparison with the necessary
stress, the stress variation
is massive that the back again stress or
the inlet pressure is large
(two) In comparison with the
tools needs, blower
flow is too huge, so its stress
(3)Inlet filter is blocked, or outlet
pipe is obstructed or blocked
(4) Collusion or friction (trapped)
rotating areas
(five) The oil degree is too large
(6) Narrow V-belt is overheat,
vibration is also massive, or pulley
is too small
(1) Minimize the pressure to the
specified benefit
(two) Exhaust the excess fuel into
the environment or decrease the
blower pace
(3) Get rid of the obstructions
(4)Right away shut down, verify
the purpose
(5) Adjust the oil to the appropriate
(6) Check out the belt stress, and
replaced it with massive diameter

Our Service

one. Pre market service                                                                              2. Following promote service                                          
a. recommend the ideal model                                             c. on the internet technological assist,                                                                                   
b. manufacturing unit tour                                                                              d. total life spare components and techinical help


twelve months gurantee for our roots blowers

/ The use of authentic gear manufacturer’s (OEM) component quantities or trademarks , e.g. CASE® and John Deere® are for reference reasons only and for indicating solution use and compatibility. Our business and the shown EPT parts contained herein are not sponsored, approved, or created by the OEM. /

High  China  in   Tanta Egypt   gear grip flexible shaft couplings  factory  Efficiency  in   Pretoria South Africa   dodge gear coupling  manufacturer  Low Energy Roots Vacuum Pump for Biogas Transport with top quality lowest price


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