Elt-50 China in Jakarta Indonesia gear shaft coupling High in Al-Mukalla Yemen elecon fluid coupling factory Efficiency Low Engergy Roots Vacuum Pump with top quality lowest price

Elt-50  China  in   Jakarta Indonesia   gear shaft coupling High  in   Al-Mukalla Yemen   elecon fluid coupling  factory  Efficiency Low Engergy Roots Vacuum Pump with top quality lowest price

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

We make all varieties of roots blower, centrifugal blower, Our Major goods are as under:

Kind Diameter Fee of stream Strain
ESR-MJ(Intense Variety) Φ50~Φ300mm .5~140m³/min 9.8KPa~98.8Kpa
ESR(Common Sort) Φ50~Φ350mm .five~140m³/min 9.8KPa~78.4Kpa
ESR-H(High-pressure Sort) Φ50~Φ350mm .7~160m³/min 58.8KPa~98.8Kpa
ESR-V(Vacuum Pump) Φ50~Φ350mm .five~160m³/min 9.8KPa~fifty three.3Kpa
EL Series Φ200~Φ600mm twenty.3~750m³/min 9.8KPa~fifty eight.8Kpa
Multistage Centrifugal Blower
or C-Series
Φ250~Φ500mm fifty~500m³/min nine.8KPa~98Kpa
ERR-ERG Variety Φ250~Φ500mm 120~420m³/min nine.8KPa~98.8Kpa

The doing work 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. Via 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 fuel in the chamber is pushed to achieve the
purpose of blowing.

Attribute of our roots blower:
one. Massive adjustment of the air quantity
two. Minimal Noise
3. Substantial performance
four. Lower energy cosumption
5. Long time existence
6. Reputable operating, straightforward servicing,little footprint

The parameters of our roots blower:

Sort Ratary Velocity
Pressure Increase
Shaft Electricity
Motor Unit Maximn
ESR-fifty 1100-2120 nine.8-58.8 .65-two.fifty eight .3-3.54 .75-4 128-158
ESR-65 1100-2130 9.eight-fifty eight.eight .ninety four-three.sixty six .38-four.forty six .75-5.five 155-185
ESR-eighty 1140-1900 nine.eight-58.8 two.34-5.43 1.04-7.42 two.two-eleven a hundred and fifty five-277
ESR-100 1060-1980 nine.eight-58.eight 4.fifty seven-nine.05 one.35-12.fifteen three-15 309-377
ESR-a hundred twenty five 980-1850 nine.8-58.eight five.35-twelve.four 1.65-5.19 5.five-eighteen.five 408-451
ESR-125C 970-1830 nine.eight-58.eight 7.five-seventeen.fifty seven three.2-eighteen.5 4-22 408-451
ESR-one hundred fifty 810-1730 nine.eight-fifty eight.8 10.37-27.fifteen three.84-40.82 seven.5-forty five 688-848
ESR-a hundred seventy five 970-1520 nine.8-58.8 19.sixty five-36.65 seven.2-45.95 eleven-fifty five 980-1080
ESR-200B 740-1450 nine.eight-fifty eight.eight 19.sixty five-44.eight ten.15-60.forty four 15-75 1272-1546
ESR-200 810-1480 9.8-fifty eight.8 27.sixty five-fifty nine.two eight.05-eighty,twelve fifteen-ninety 1272-1546
ESR-250B 1100-1480 9.eight-fifty eight.8 fifty four.seventy seven-seventy seven.fifty five 19.97-ninety.97 thirty-a hundred and ten 1490-2454
ESR-250 990-1480 nine.eight-fifty eight.eight 61.4-97.fifty two 20.one-117.3 thirty-132 1490-2454
ESR-three hundred 990-1480 nine.8-fifty eight.8 87.one-138.1 26.4-167.8 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 sixty three.seven-98 .45-2.02 2.05-6.12 3-seven.five one hundred sixty–170
ESR-65H 1240-2130 63.7-ninety eight .seventy eight-two.fifty three two.89-seven.fifty five 4-eleven 198-230
ESR-80H 1140-1900 sixty three.seven-98 one.eighty two-4.55 4.09-10.one 5.five-fifteen 316-326
ESR-100H 1060-1980 63.7-98 two.sixty five-8.06 6.36-17.two 7.five-22 398-459
ESR-125H 980-1850 63.7-98 four.64-eleven.23 eight.92-24.2 eleven-30 544-630
ESR-150H 810-1730 63.7-ninety eight 9.53-twenty five.seventy six 17.sixteen-65 18.five-75 752-1571
ESR-200H 810-1480 sixty three.7-98 25.34-fifty six.92 42.34-a hundred and twenty 55-132 1426-1934
ESR-250H 990-1480 sixty three.seven-ninety eight fifty eight-ninety three.seven eighty three.2-205 90-220 2980-3468
ESR300H 990-1480 sixty three.seven-ninety eight 86.nine-134.one 114.7-270 132-280 3476-3998
ERF-245 650-980 9.eight-98 47.five-97.four 16-183 18.five-200 3630-3690
ERF-250 650-980 nine.8-ninety eight 61.6-one hundred twenty.4 19-227 22-250 4450-4500
ERF-290 650-980 9.eight-78.four ninety two.3-128 22-213 thirty-250 4890-4710
ERF-295 650-980 9.eight-78.four 97.three-152.5 23-227 thirty-250 4890-4880
ERF-297 650-980 nine.8-78.four 87.five-167.6 26-249 thirty-280 5330-5520
ERF-three hundred 650-980 9.eight-78.four one zero one.five-188.7 29-278 37-315 5330-5520
ERF-350 650-980 9.eight-78.4 126-224.9 34-249 45-280 5210-6470
ERG-three hundred 590-730 nine.eight-98 128.three-196 38-362 forty five-four hundred 9440-15710
ERG-350 590-730 9.eight-ninety eight 159.3-231.6 43-420 fifty five-450 9700-1571
ERG-400 590-730 9.eight-83.3 203.1-290.nine fifty two-449 seventy five-five hundred 10090-11390
ERG-445 590-730 nine.eight-seventy three.five 229.seven-327.8 58-477 seventy five-560 10600-12230
ERG-450 590-730 nine.eight-seventy three.5 262.4-366.2 64-496 75-560 10600-12230
ERG-five hundred 590-730 nine.eight-63.7 327.four-452.four seventy eight-529 90-560 12790-14620
ERF-240-V 650-980 -9.8- -forty nine 38.1-seventy eight 13-seventy six 18.5-90 3420-3285
ERF-245-V 650-980 -9.8- -49 47.5-ninety seven.4 16-ninety five 22-110 3425-3360
ERF-250-V 650-980 -9.eight- -49 sixty three-one hundred twenty 19-117 22-132 3910-3830
ERF-290-V 650-980 -9.eight- -forty nine seventy two.six-one hundred forty four 22-136 thirty-one hundred sixty 4415-4270
ERF-295-V 650-980 -nine.8- -49 seventy six.6-152 23-a hundred forty five 30-160 4425-4485
ERF-297-V 650-980 -nine.8- -49 84.three-166.eight 26-one hundred sixty thirty-one hundred eighty 5000-4980
ERF-300-V 650-980 -nine.eight- -49 ninety seven-192 29-178 37-200 5000-4980
ERF-350-V 650-980 -9.8- -forty nine 116-225 34-209 45-250 5400-5700
ERG-300V 590-730 -nine.8- -49 133-193 38-184 45-220 7800-9100
ERG-350V 590-730 -9.8- -49 163-231 43-216 55-250 9500-9470
ERG-400V 590-730 -9.eight- -49 199-290 fifty two-269 75-315 9900-10130
ERG-445V 590-730 -9.8- -49 224.8-326.nine fifty eight-303 seventy five-355 9900-10130
ERG-450V 590-730 -9.eight- -49 255-365 sixty four-335 75-400 11230-11300
ERG-500V 590-730 -9.8- -forty nine 314-452 78-412 132-450 13630-13850
ERF-245W 650-980 -thirteen.three- -53.three 53.five-one hundred and one 21.five-102 30-a hundred and ten 3630-3360
ERF-250W 650-980 -13.3- -53.3 sixty nine-127 26.five-127 30-a hundred and sixty 3985-4115
ERF-290W 650-980 -thirteen.three- -53.3 82.6-a hundred and fifty 30.five-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 -13.3- -53.three 95-174 36-174 45-two hundred 5230-5130
ERF-300W 650-980 -thirteen.three- -53.three 109-195 40-193 fifty five-220 5230-5130
ERF-350W 650-980 -thirteen.3- -53.3 129-230 50-230 75-250 5840-5670
ERG-300W 590-730 -13.three- -fifty three.three 142-197 52-201 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.three- -53.3 220-276.6 71-292 ninety-315 9900-10130
ERG-445W 590-730 -thirteen.three- -fifty three.three 244-294.six 82-331 ninety-400 11230-11300
ERG450W 590-730 -13.three- -fifty three.3 275-368.5 91-366 110-four hundred 11230-11300
650-980 ninety eight-196 64.8-112 135-355 one hundred sixty-400 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.two 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 98-176.4 263-428 476-955 560-1000 24200-27600
650-980 -53.three–eighty seventy two-121 seventy five.6-121 ninety-one hundred sixty 6100-6470
650-980 -fifty three.three–80 93.eight-154 ninety nine.5-186 a hundred and ten-220 7000-6400
650-980 -53.three–80 116-189 one hundred fifteen-220 132-250 7750-7760
EL81WD 580-980 9.eight-58.8 fifty four.2-a hundred thirty 18-151 45-185 3595
EL82WDB 580-980 9.eight-fifty eight.eight 72.eight-161 22-191 forty five-220 3860
EL83WDA 580-980 nine.eight-fifty eight.nine one zero one-213 28.5-202 forty five-220 4300
EL84WDA 580-980 nine.eight-fifty eight.eight 129-267 35.four-252 forty five-280 4720
EL93WDA 580-730 9.8-49 230-329 56.four-311 75-355 7765
EL94WDA 580-730 9.8-forty nine 263-373 sixty four-353 seventy five-400 8130
EL95WDA 490-580 nine.8-58.8 308-434 eighty one.4-414 90-450 11500
EL96WDA 580 fifty eight.8 381 497 560 11500
E397WN 1000-1650 40 five-9      
E408WN 870-1650 40 ten-22      
E517WN 980-1580 forty twenty-30      
E520WN 930-1550 forty 24-45      
E607WN 750-1250 forty forty five-76      
E610WN 750-1250 40 75-130      

Spare components and composition of our roots blower:

Package of our Roots Blower

Pack into iron circumstance, two layer,blower body and motor in reduce layer, inlet/out silencer etc in upper layer

Roots blower pack method exact same as iron case, just modify to Fumigation Free Plywood Scenario

Our manufacturing unit is a skilled maker of Roots blowers which has above twenty years’ experience in equipment
manufacturing. It is found in Xihu (West Lake) Dis. East Industrial Park, fifty kilometers to the east of Shan EPT provincial
funds— HangZhou. Our firm also has handy targeted traffic transportation, as it is fifteen kilometers away from
Diaozhen Town station of HangZhou-HangZhou expressway, and 30 kilometers away from East HangZhou station of
ZheJiang -ZheJiang expressway.The top item of our organization is ESR -sort Roots Blower. The roots
vacuum pump is a new sort of large-effectiveness roots blower, which is developed independently based on the
domestic and foreign sophisticated technologies. Several patented technologies have been adopted on Roots
Blower, and hence we have manufactured substantial outcomes in power conservation and noise reduction, etc.. So significantly, our
firm has invested more than 30,000,000 RMB to introduce this sort of superior specialist tools as
horizontal machining middle, vertical machining heart, two-way CNC floor planer, CNC lathe, CNC milling
device, CNC planer, airplane grinder, cylindrical grinding equipment, and 3 coordinates tests machine.
In addition to, we have taken various steps to standardize the procedure stream these kinds of as doing work and cooperating
with a lot of scientific research units, faculties and universities at house and abroad. We also constantly consider to
take up and boost the domestic innovative generation technologies, so as to encourage the upgrading and
optimization of the solution and make the merchandise top quality reach the innovative degree at home and abroad.
ESR -kind Roots Blower consists of many collection this sort of as A few-leaves Type, Two-leaves Kind and Centrifugal
Type,which can be additional divided to hundreds of kinds. The merchandise are extensively utilised in sewage treatment method,
pneumatic conveying,vacuum packaging, aquaculture, foods processing, EPT power, petrochemical, cement,
mining and other industries. Our products have these kinds of rewards as lower noise, energy saving, steady high quality,
and extended support life, and so forth.. With the revenue outlets throughout the domestic capital cities, our goods offer effectively all
above the country, and have been exported to North The us,Russia, Malaysia, Indonesia, Vietnam, South Africa
and some other nations. Having received the ISO9001 Intercontinental High quality Method Certification, we have
set up and enhanced the good quality assurance of the merchandise planning, manufacturing, and set up.
From the process of design and style, research and advancement to the completed items, we have acquired the total
approach controlled independently, hence providing the total foundation and reliability guarantee for the goods security
and sturdiness. Obtaining a perfect sales network and right after-product sales provider, we supply our customers with increased-
good quality and far more efficient service.All personnel of our organization sincerely welcome the broad masses of pals to
guidebook, and negotiate enterprise with us.

Our Roots Blower Workshop

         Doosn Horzitonal Device Centre

The Software of the Roots Blower

Routine maintenance and inspection
(1) Examine all fasteners and finding pins circumstances no matter whether they are loosening.
(2) Constantly verify whether or not the leakage phenomenon of the human body.
(3) Pay out interest to lubrication, volume of grease and noises when running,
figure out regardless of whether it performs under the required circumstances.
(four) Lubricant & grease: The lubricant is for medium load industrial equipment oil
(quality 220, kinematic viscosity of 198 ~ 242mm2 / s 40ºC, flash level ≥ 200ºC)
The grease is butter (synthetic lithium grease penetration 220-250, fall stage ≥
190ºC). Replace the lubricant and grease following 1st two hundred hrs operating, and exchange
again soon after a moth operating. Later, exchange the lubricant and grease according to the
surroundings and lubricant (grease) top quality suggest a suited EPT for three
(five) Constantly check out the inlet air filter, clear or replace the filter in time.
(6) Blower overload sometimes not immediately displayed, so pay out interest to
the ingestion and exhaust pressure, bearing temperature and the current enhance traits
of motor to determine regardless of whether the blower performs typically
(7) Before disassembling the blower, the assembling relation and dimensions
have to be recorded or measured, make marks on components to ensure the first
specifications soon after assembling.
(eight) When recently machine or overhaul, the oil tank ought to be cleaned just before use
and propose exchange all grease right after eight hrs managing.

Typical failure purpose and troubleshooting

No Failure Achievable reasons Elimination techniques
1 Friction
amongst the
(1) Impurities on the impeller,
ensuing in the gap is as well small
(two) Equipment put on, resulting in a
huge backlash
(3) The gear is not effectively fixed,
can not sustain the impeller
(four) Bearing put on ensuing in
clearance rising.
(1) Take away grime and check
no matter whether there is damage areas
(2) Adjust the gear hole, substitute
the gears if the equipment backlash is
better than the average 30% to
(3)Re-assemble the gears, maintain
the taper contact location is to seventy five%
(four)Change the bearing
2 Collision
impeller and
wall, the
impeller best
and casing
(1) Set up hole is not correct
(two) running pressure is way too
substantial, exceeding the specified
(3) Working temperature is way too higher
(four) Casing or foundation deformation,
positioning admirer failure
(five) Bearing axial spot is not good
(one) Modify the hole
(two) Discover triggers of
overloading, reduced the pressure
to the specified value
(3) Examine the installation
accuracy and lessen the pipe
(4) Verify and mend bearings,
and to make sure the clearance
3 Temperature
also high
(1) Oil in tank is way too a lot, way too
thick or also dirty
(two) Filter or silencer is blocked
(three)The strain is increased than
the specified price
(four)Excessive wear of the
impeller, big hole
(five)Very poor ventilation, indoor
temperature is higher, ensuing in
inlet air’s high temperature
(six) The rotating speed is as well reduced,result in the belt slipping.
(one)Decrease the oil amount or rely on
(two)Remove of blocking objects
(3)Decreasing the stress by means of
the blower
(four)Mend its clearance
(5)Open up vents to lessen room
(6) Improve pace to prevent the
belt slipping.
4 Insufficient
(one) The inlet filter is blocked
(2) Impeller dress in and the gap
raises as well significantly
(3) Belt slipping
(4) Massive imports pressure reduction
(five) Pipeline air flow leakage
(one) Thoroughly clean the filter dust and
(two) Fix the gap
(three)Tighten the belt and enhance
the quantity of belts
(four)Modify the inlet pressure to the
specified value
(5) Verify and repair the pipeline
five Oil leaking or
oil leaking
into the enclosure
(1)Substantial tank situation cause
leakage from the discharge port
(two) Seal wear, resulting in shaft oil spills
(three) The force is larger than
the specified benefit

(1)Minimize the oil level
(2)Replace the seals
(3)Distinct the air vents, 2mm diameter faucet is mounted in the
center chamber, open the faucet
beneath the wall
six Irregular
vibration and
(one)Bearing clearance exceeds the
specified price or bearing use
(2) The gear backlash is too
massive, not in a tight fastened
(three) The international objects and dust
induced by the impeller and the
impeller, the impeller and the
housing collision
(four) the impeller shaft
deformation brought on the collision
caused by overload,
(5) Friction amongst the impeller
and the inlet housing caused by
(six) Unbalance of the impeller
triggered by fouling or overseas
(seven) Anchor bolts or other
fasteners are loosened
(1)Change bearings or bearing
(two)Reassemble equipment and make certain
(3)Cleansing blower, verify the
circumstance is destroyed
(four)Check out the back again stress, verify
the wheel and change gap
(5)Examine the filter and back
force, enhance the gap
among the impeller inlet and the
(6)Thoroughly clean the impeller and the
casing, to ensure that the impeller
clearance work
(seven) Tighten the anchor bolts and
leveling the base.
7 Motor
(one)In comparison with the needed
strain, the strain big difference
is big that the back pressure or
the inlet stress is substantial
(2) When compared with the
equipment specifications, blower
stream is as well large, so its stress
will increase
(three)Inlet filter is blocked, or outlet
pipe is obstructed or blocked
(4) Collusion or friction (caught)
rotating parts
(5) The oil degree is too substantial
(6) Slender V-belt is overheat,
vibration is as well massive, or pulley
is way too modest
(one) Lessen the stress to the
specified price
(2) Exhaust the excess fuel into
the environment or decrease the
blower velocity
(3) Get rid of the obstructions
(four)Instantly shut down, check
the explanation
(five) Alter the oil to the right
(six) Check out the belt tension, and
replaced it with big diameter

Our Support

1. Pre sell service                                                                              two. After market service                                          
a. recommend the suited model                                             c. on the internet technical assist,                                                                                   
b. manufacturing facility tour                                                                              d. whole existence spare parts and techinical support


twelve months gurantee for our roots blowers

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

Elt-50  China  in   Jakarta Indonesia   gear shaft coupling High  in   Al-Mukalla Yemen   elecon fluid coupling  factory  Efficiency Low Engergy Roots Vacuum Pump with top quality lowest price

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