Anti  China  in   Hamah Syrian Arab Republic   bowex m42 coupling  factory  Corrosion  in   Addis Ababa Ethiopia   face gear coupling  shop  High Efficiency Roots Vacuum Pump for Pheumatic Transport with top quality lowest price

We – EPG Team the greatest couplings and gears manufacturing facility in China with 5 different branches. For more information: Mobile/whatsapp/telegram/Kakao us at: 0086-13083988828 /

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

Kind Diameter Rate of movement Pressure
ESR-MJ(Intensive Kind) Φ50~Φ300mm .five~140m³/min nine.8KPa~98.8Kpa
ESR(Ordinary Sort) Φ50~Φ350mm .5~140m³/min nine.8KPa~seventy eight.4Kpa
ESR-H(Substantial-force Variety) Φ50~Φ350mm .7~160m³/min fifty eight.8KPa~98.8Kpa
ESR-V(Vacuum Pump) Φ50~Φ350mm .five~160m³/min nine.8KPa~fifty three.3Kpa
EL Sequence Φ200~Φ600mm twenty.three~750m³/min nine.8KPa~fifty eight.8Kpa
Multistage Centrifugal Blower
or C-Collection
Φ250~Φ500mm fifty~500m³/min nine.8KPa~98Kpa
ERR-ERG Kind Φ250~Φ500mm 120~420m³/min 9.8KPa~98.8Kpa

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 both sides of the cavity. Through the action of a pair of
synchronous gears, the two rotors rotate in reverse 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
goal of blowing.

Function of our roots blower:
one. Massive adjustment of the air volume
two. Lower Sound
three. High effectiveness
four. Lower strength cosumption
five. Extended time existence
6. Reputable operating, straightforward maintenance,modest footprint

The parameters of our roots blower:

Type Ratary Pace
Strain Increase
Shaft Electricity
Motor Device Maximn
ESR-fifty 1100-2120 9.eight-58.eight .sixty five-two.fifty eight .three-3.fifty four .75-four 128-158
ESR-65 1100-2130 9.eight-fifty eight.8 .94-three.sixty six .38-four.46 .seventy five-5.5 a hundred and fifty five-185
ESR-eighty 1140-1900 9.eight-fifty eight.8 2.34-5.43 one.04-seven.42 2.2-11 one hundred fifty five-277
ESR-one hundred 1060-1980 nine.8-fifty eight.eight 4.57-9.05 one.35-twelve.15 three-15 309-377
ESR-a hundred twenty five 980-1850 nine.8-58.eight 5.35-twelve.4 one.65-five.19 five.5-18.5 408-451
ESR-125C 970-1830 9.eight-58.eight 7.five-seventeen.57 three.2-18.5 4-22 408-451
ESR-a hundred and fifty 810-1730 nine.eight-58.8 10.37-27.15 3.eighty four-40.eighty two 7.5-45 688-848
ESR-one hundred seventy five 970-1520 nine.eight-58.8 19.sixty five-36.65 7.2-forty five.ninety five eleven-55 980-1080
ESR-200B 740-1450 nine.8-58.8 19.sixty five-forty four.8 10.15-sixty.forty four 15-75 1272-1546
ESR-two hundred 810-1480 nine.eight-58.8 27.65-59.2 8.05-80,twelve fifteen-90 1272-1546
ESR-250B 1100-1480 nine.eight-fifty eight.eight 54.77-77.55 19.ninety seven-ninety.97 30-110 1490-2454
ESR-250 990-1480 nine.8-fifty eight.eight 61.four-ninety seven.fifty two 20.1-117.three thirty-132 1490-2454
ESR-300 990-1480 9.eight-58.8 87.1-138.1 26.4-167.eight 37-185 3326-3446
ESR-350 730-1480 nine.eight-fifty eight.eight 78.41-177.31   55-250  
ESR-50H 1230-2120 63.7-ninety eight .45-two.02 two.05-six.12 three-seven.five a hundred and sixty–one hundred seventy
ESR-65H 1240-2130 63.7-98 .78-two.fifty three two.89-seven.fifty five 4-eleven 198-230
ESR-80H 1140-1900 eight one.82-4.55 four.09-10.1 5.5-15 316-326
ESR-100H 1060-1980 sixty three.7-ninety eight 2.sixty five-eight.06 six.36-17.2 7.5-22 398-459
ESR-125H 980-1850 4.sixty four-11.23 eight.ninety two-24.2 eleven-thirty 544-630
ESR-150H 810-1730 sixty three.7-ninety eight nine.53-25.76 17.16-65 eighteen.5-seventy five 752-1571
ESR-200H 810-1480 eight 25.34-fifty six.92 42.34-one hundred twenty fifty five-132 1426-1934
ESR-250H 990-1480 sixty three.7-ninety eight fifty eight-93.7 eighty three.two-205 90-220 2980-3468
ESR300H 990-1480 63.7-ninety eight 86.9-134.1 132-280 3476-3998
ERF-245 650-980 nine.8-ninety eight forty seven.5-ninety seven.4 16-183 18.five-200 3630-3690
ERF-250 650-980 9.eight-ninety eight 61.6-a hundred and twenty.4 19-227 22-250 4450-4500
ERF-290 650-980 9.eight-seventy eight.four ninety two.three-128 22-213 thirty-250 4890-4710
ERF-295 650-980 9.eight-seventy eight.4 97.3-152.five 23-227 thirty-250 4890-4880
ERF-297 650-980 9.8-78.4 87.5-167.6 26-249 30-280 5330-5520
ERF-300 650-980 nine.8-seventy eight.4 one zero 29-278 37-315 5330-5520
ERF-350 650-980 9.eight-78.four 126-224.9 34-249 45-280 5210-6470
ERG-300 590-730 nine.eight-ninety eight 128.3-196 38-362 forty five-four hundred 9440-15710
ERG-350 590-730 nine.eight-ninety eight 159.three-231.six 43-420 fifty five-450 9700-1571
ERG-400 590-730 nine.eight-83.3 203.1-290.nine fifty two-449 75-five hundred 10090-11390
ERG-445 590-730 nine.eight-73.five 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 590-730 327.4-452.four seventy eight-529 90-560 12790-14620
ERF-240-V 650-980 -9.eight- -forty nine thirteen-76 eighteen.5-90 3420-3285
ERF-245-V 650-980 -9.8- -forty nine 47.5-97.four 16-ninety five 22-one hundred ten 3425-3360
ERF-250-V 650-980 -nine.8- -49 sixty three-120 19-117 22-132 3910-3830
ERF-290-V 650-980 -nine.eight- -forty nine seventy two.6-144 22-136 thirty-160 4415-4270
ERF-295-V 650-980 -nine.8- -forty nine 76.6-152 23-145 thirty-160 4425-4485
ERF-297-V 650-980 -nine.8- -forty nine eighty four.three-166.eight 26-a hundred and sixty 30-one hundred eighty 5000-4980
ERF-three hundred-V 650-980 -nine.8- -forty nine 97-192 29-178 37-200 5000-4980
ERF-350-V 650-980 -9.eight- -49 116-225 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 -9.8- -49 163-231 43-216 fifty five-250 9500-9470
ERG-400V 590-730 -9.eight- -49 199-290 52-269 seventy five-315 9900-10130
ERG-445V 590-730 -nine.8- -forty nine 224.8-326.nine fifty eight-303 75-355 9900-10130
ERG-450V 590-730 -9.eight- -forty nine 255-365 64-335 75-four hundred 11230-11300
ERG-500V 590-730 -nine.eight- -49 314-452 78-412 132-450 13630-13850
ERF-245W 650-980 -13.3- -fifty three.3 53.five-101 21.five-102 30-110 3630-3360
ERF-250W 650-980 -13.three- -fifty three.3 69-127 26.5-127 30-a hundred and sixty 3985-4115
ERF-290W 650-980 -13.three- -53.three eighty two.6-150 thirty.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 -thirteen.three- -53.three 95-174 36-174 45-200 5230-5130
ERF-300W 650-980 -13.3- -fifty three.3 109-195 forty-193 55-220 5230-5130
ERF-350W 650-980 -13.three- -53.three 129-230 fifty-230 75-250 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 -13.three- -fifty three.three 168-234.four 59-235.5 seventy five-280 9500-9600
ERG-400W 590-730 -13.3- -53.three 220-276.6 71-292 ninety-315 9900-10130
ERG-445W 590-730 -thirteen.3- -53.three 244-294.six 82-331 90-400 11230-11300
ERG450W 590-730 -13.3- -fifty three.3 275-368.5 ninety one-366 110-four hundred 11230-11300
650-980 ninety eight-196 64.8-112 one hundred thirty five-355 one hundred sixty-400 8700-8600
650-980 98-196 80.8-139 167-439 185-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
ETRG-four hundred
(three hundred,four hundred)
590-740 98-176.four 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.three–eighty seventy two-121 seventy five.6-121 ninety-160 6100-6470
650-980 -fifty three.three–80 93.eight-154 99.5-186 one hundred ten-220 7000-6400
650-980 -53.three–80 116-189 115-220 132-250 7750-7760
EL81WD 580-980 nine.8-58.8 54.two-one hundred thirty eighteen-151 forty five-185 3595
EL82WDB 580-980 9.eight-58.8 72.eight-161 22-191 45-220 3860
EL83WDA 580-980 nine.8-58.9 one zero one-213 28.five-202 45-220 4300
EL84WDA 580-980 nine.8-58.eight 129-267 35.4-252 45-280 4720
EL93WDA 580-730 nine.8-49 230-329 56.four-311 seventy five-355 7765
EL94WDA 580-730 nine.eight-49 263-373 sixty four-353 seventy five-400 8130
EL95WDA 490-580 nine.eight-fifty eight.eight 308-434 81.four-414 ninety-450 11500
EL96WDA 580 58.8 381 497 560 11500
E397WN a thousand-1650 40 five-9      
E408WN 870-1650 40 10-22      
E517WN 980-1580 40 20-thirty      
E520WN 930-1550 40 24-45      
E607WN 750-1250 forty forty five-76      
E610WN 750-1250 40 75-one hundred thirty      

Spare areas and construction of our roots blower:

Bundle of our Roots Blower

Pack into iron circumstance, two layer,blower physique and motor in reduced layer, inlet/out silencer and many others in higher layer

Roots blower pack method very same as iron situation, just change to Fumigation Totally free Plywood Case

Our manufacturing facility is a professional company of Roots blowers which has more than twenty years’ experience in equipment
production. It is situated in Xihu (West Lake) Dis. East Industrial Park, 50 kilometers to the east of Shan EPT provincial
cash— HangZhou. Our organization also has practical targeted traffic transportation, as it is fifteen kilometers away from
Diaozhen City station of HangZhou-HangZhou expressway, and 30 kilometers away from East HangZhou station of
ZheJiang -ZheJiang expressway.The top item of our company is ESR -type Roots Blower. The roots
vacuum pump is a new sort of higher-performance roots blower, which is designed independently primarily based on the
domestic and international advanced systems. Numerous patented technologies have been adopted on Roots
Blower, and thus we have manufactured significant effects in power conservation and noise reduction, and so forth.. So much, our
company has invested far more than thirty,000,000 RMB to introduce this kind of innovative skilled equipment as
horizontal machining heart, vertical machining center, two-way CNC floor planer, CNC lathe, CNC milling
equipment, CNC planer, plane grinder, cylindrical grinding equipment, and 3 coordinates screening device.
Besides, we have taken different actions to standardize the approach flow this sort of as operating and cooperating
with a lot of scientific research units, schools and universities at residence and abroad. We also continuously consider to
take in and enhance the domestic advanced generation technologies, so as to encourage the upgrading and
optimization of the product and make the solution good quality get to the sophisticated degree at residence and abroad.
ESR -kind Roots Blower consists of several collection this sort of as Three-leaves Kind, Two-leaves Sort and Centrifugal
Kind,which can be even more divided to hundreds of kinds. The merchandise are widely used in sewage treatment,
pneumatic conveying,vacuum packaging, aquaculture, meals processing, EPT electricity, petrochemical, cement,
mining and other industries. Our products have this sort of benefits as reduced noise, power conserving, steady top quality,
and prolonged service life, and so forth.. With the sales outlets throughout the domestic money towns, our goods sell effectively all
more than the country, and have been exported to North The united states,Russia, Malaysia, Indonesia, Vietnam, South Africa
and some other international locations. Possessing acquired the ISO9001 Global Top quality System Certification, we have
set up and enhanced the top quality assurance of the products creating, production, and installation.
From the process of style, research and improvement to the finished merchandise, we have obtained the whole
method managed independently, thus providing the total basis and trustworthiness ensure for the goods balance
and durability. Possessing a perfect revenue network and right after-revenue service, we offer our customers with greater-
good quality and much more effective provider.All workers of our company sincerely welcome the wide masses of friends to
guidebook, and negotiate organization with us.

Our Roots Blower Workshop

         Doosn Horzitonal Machine Heart

The Software of the Roots Blower

Routine maintenance and inspection
(1) Check out all fasteners and finding pins circumstances whether or not they are loosening.
(two) Often check whether or not the leakage phenomenon of the physique.
(3) Shell out attention to lubrication, sum of grease and noises when running,
decide whether it works below the required problems.
(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 (artificial lithium grease penetration 220-250, fall position ≥
190ºC). Exchange the lubricant and grease following 1st 200 hours operating, and change
yet again after a moth running. Later, change the lubricant and grease in accordance to the
environment and lubricant (grease) quality propose a suitable EPT for a few
(5) Usually check the inlet air filter, thoroughly clean or replace the filter in time.
(6) Blower overload occasionally not instantly displayed, so pay out interest to
the intake and exhaust stress, bearing temperature and the recent improve developments
of motor to decide whether or not the blower functions normally
(seven) Before disassembling the blower, the assembling relation and dimensions
have to be recorded or calculated, make marks on factors to make certain the authentic
needs after assembling.
(8) When recently device or overhaul, the oil tank need to be cleaned before use
and propose substitute all grease after eight hours operating.

Widespread failure explanation and troubleshooting

No Failure Achievable factors Elimination approaches
one Friction
amongst the
(one) Impurities on the impeller,
ensuing in the gap is also small
(two) Equipment put on, resulting in a
massive backlash
(3) The gear is not well fastened,
can not maintain the impeller
(four) Bearing wear ensuing in
clearance escalating.
(1) Eliminate dust and check out
regardless of whether there is injury elements
(2) Alter the equipment hole, replace
the gears if the equipment backlash is
increased than the average 30% to
(3)Re-assemble the gears, maintain
the taper contact spot is to 75%
(four)Exchange the bearing
2 Collision
impeller and
wall, the
impeller leading
and casing
(1) Set up hole is not appropriate
(two) functioning force is as well
substantial, exceeding the specified
(three) Working temperature is way too higher
(four) Casing or foundation deformation,
positioning fan failure
(five) Bearing axial spot is not very good
(1) Modify the gap
(two) Identify brings about of
overloading, reduced the force
to the specified price
(three) Verify the set up
accuracy and reduce the pipe
(four) Verify and fix bearings,
and to ensure the clearance
three Temperature
way too large
(one) Oil in tank is also considerably, as well
thick or too filthy
(two) Filter or silencer is blocked
(three)The pressure is increased than
the specified benefit
(4)Excessive dress in of the
impeller, huge hole
(five)Bad ventilation, indoor
temperature is higher, ensuing in
inlet air’s substantial temperature
(six) The rotating speed is as well low,outcome in the belt slipping.
(1)Decrease the oil degree or rely on
(2)Get rid of of blocking objects
(three)Lowering the stress by means of
the blower
(four)Repair its clearance
(five)Open up vents to lessen area
(6) Enhance speed to avert the
belt slipping.
4 Insufficient
(one) The inlet filter is blocked
(two) Impeller dress in and the hole
boosts too considerably
(3) Belt slipping
(four) Huge imports pressure reduction
(five) Pipeline air flow leakage
(one) Thoroughly clean the filter dust and
(2) Restore the gap
(three)Tighten the belt and enhance
the amount of belts
(4)Adjust the inlet stress to the
specified price
(five) Check and restore the pipeline
five Oil leaking or
oil leaking
into the enclosure
(one)High tank situation cause
leakage from the discharge port
(two) Seal dress in, ensuing in shaft oil spills
(three) The stress is higher than
the specified value

(one)Reduce the oil degree
(two)Substitute the seals
(three)Distinct the air vents, 2mm diameter faucet is fixed in the
center chamber, open the faucet
underneath the wall
6 Abnormal
vibration and
(one)Bearing clearance exceeds the
specified worth or bearing put on
(2) The gear backlash is also
massive, not in a tight fixed
(3) The overseas objects and dust
brought on by the impeller and the
impeller, the impeller and the
housing collision
(4) the impeller shaft
deformation brought on the collision
caused by overload,
(5) Friction amongst the impeller
and the inlet housing brought on by
(6) Unbalance of the impeller
triggered by fouling or international
human body
(7) Anchor bolts or other
fasteners are loosened
(one)Change bearings or bearing
(two)Reassemble equipment and make certain
(3)Cleaning blower, check the
scenario is damaged
(four)Examine the back force, check out
the wheel and alter hole
(five)Examine the filter and back
strain, increase the hole
between the impeller inlet and the
(six)Clear the impeller and the
casing, to ensure that the impeller
clearance function
(seven) Tighten the anchor bolts and
leveling the foundation.
seven Motor
(one)In comparison with the essential
strain, the stress big difference
is massive that the again pressure or
the inlet strain is substantial
(two) Compared with the
products needs, blower
movement is too large, so its stress
will increase
(three)Inlet filter is blocked, or outlet
pipe is obstructed or blocked
(4) Collusion or friction (stuck)
rotating areas
(5) The oil degree is as well high
(six) Slender V-belt is overheat,
vibration is also large, or pulley
is as well little
(one) Decrease the force to the
specified value
(two) Exhaust the excessive gasoline into
the environment or minimize the
blower speed
(three) Take away the obstructions
(four)Immediately shut down, check out
the cause
(5) Adjust the oil to the right
(six) Verify the belt rigidity, and
replaced it with massive diameter

Our Provider

one. Pre sell service                                                                              two. Soon after promote service                                          
a. advocate the ideal model                                             c. online technological support,                                                                                   
b. manufacturing unit tour                                                                              d. complete lifestyle spare elements and techinical assistance


twelve months gurantee for our roots blowers

/ The use of first products manufacturer’s (OEM) element quantities or logos , e.g. CASE® and John Deere® are for reference reasons only and for indicating merchandise use and compatibility. Our company and the detailed EPT areas contained herein are not sponsored, accredited, or produced by the OEM. /

Anti  China  in   Hamah Syrian Arab Republic   bowex m42 coupling  factory  Corrosion  in   Addis Ababa Ethiopia   face gear coupling  shop  High Efficiency Roots Vacuum Pump for Pheumatic Transport with top quality lowest price