Intensive China in San Diego United States full gear coupling supplier Type in La Paz Bolivia (Plurinational State of) tooth coupling factory Roots Blower for Pheumatic, Fishery with top quality lowest price

Intensive  China  in   San Diego United States   full gear coupling  supplier  Type  in   La Paz Xihu (West Lake) Dis.via (Plurinational State of)   tooth coupling  factory  Roots Blower for Pheumatic, Fishery with top quality lowest price

We – EPG Team the largest couplings and gears manufacturing unit in China with 5 diverse branches. For a lot more details: Cellular/whatsapp/telegram/Kakao us at: 0086-13083988828 /

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

Sort Diameter Fee of circulation Strain
ESR-MJ(Intensive Kind) Φ50~Φ300mm .5~140m³/min 9.8KPa~ninety eight.8Kpa
ESR(Normal Type) Φ50~Φ350mm .5~140m³/min 9.8KPa~78.4Kpa
ESR-H(Higher-force Variety) Φ50~Φ350mm .7~160m³/min 58.8KPa~98.8Kpa
ESR-V(Vacuum Pump) Φ50~Φ350mm .5~160m³/min nine.8KPa~53.3Kpa
EL Collection Φ200~Φ600mm twenty.3~750m³/min 9.8KPa~fifty eight.8Kpa
Multistage Centrifugal Blower
or C-Collection
Φ250~Φ500mm fifty~500m³/min nine.8KPa~98Kpa
ERR-ERG Sort Φ250~Φ500mm a hundred and twenty~420m³/min nine.8KPa~ninety eight.8Kpa

The doing work theory of the three-blade roots blower: two three-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 gasoline in the chamber is pushed to attain the
function of blowing.

Attribute of our roots blower:
one. Huge adjustment of the air quantity
2. Reduced Sound
three. Substantial efficiency
4. Lower vitality cosumption
5. Long time life
6. Reputable working, straightforward upkeep,small footprint

The parameters of our roots blower:

Variety Ratary Speed
Pressure Increase
Shaft Electricity
Motor Device Maximn
ESR-fifty 1100-2120 nine.eight-58.eight .65-2.58 .three-3.fifty four .75-4 128-158
ESR-65 1100-2130 nine.eight-58.eight .ninety four-3.66 .38-4.46 .seventy five-5.five a hundred and fifty five-185
ESR-eighty 1140-1900 9.eight-58.eight 2.34-5.43 one.04-seven.forty two two.two-11 one hundred fifty five-277
ESR-a hundred 1060-1980 9.eight-fifty eight.eight four.fifty seven-nine.05 1.35-12.fifteen three-fifteen 309-377
ESR-a hundred twenty five 980-1850 nine.8-fifty eight.8 5.35-12.4 one.65-five.19 5.five-eighteen.five 408-451
ESR-125C 970-1830 9.8-58.eight seven.five-seventeen.57 three.2-eighteen.5 four-22 408-451
ESR-150 810-1730 9.eight-58.eight 10.37-27.fifteen three.84-forty.82 7.five-45 688-848
ESR-175 970-1520 9.8-58.8 19.65-36.65 7.2-45.95 eleven-55 980-1080
ESR-200B 740-1450 nine.eight-58.8 19.65-forty four.eight ten.15-60.44 fifteen-seventy five 1272-1546
ESR-two hundred 810-1480 nine.8-58.eight 27.65-fifty nine.two eight.05-eighty,12 fifteen-90 1272-1546
ESR-250B 1100-1480 9.eight-fifty eight.eight fifty four.77-77.fifty five 19.ninety seven-ninety.ninety seven thirty-a hundred and ten 1490-2454
ESR-250 990-1480 nine.8-58.eight sixty one.four-ninety seven.52 twenty.1-117.3 30-132 1490-2454
ESR-300 990-1480 9.eight-fifty eight.eight 26.four-167.8 37-185 3326-3446
ESR-350 730-1480 9.8-fifty eight.8 78.41-177.31   fifty five-250  
ESR-50H 1230-2120 sixty three.7-ninety eight .forty five-two.02 two.05-6.twelve 3-seven.5 160–170
ESR-65H 1240-2130 sixty eight .seventy eight-2.fifty three two.89-seven.fifty five 4-11 198-230
ESR-80H 1140-1900 eight one.eighty two-4.55 four.09-10.1 five.five-15 316-326
ESR-100H 1060-1980 sixty three.7-98 2.65-8.06 6.36-17.two 7.5-22 398-459
ESR-125H 980-1850 sixty three.7-98 4.sixty four-11.23 8.ninety two-24.two eleven-thirty 544-630
ESR-150H 810-1730 nine.53-twenty five.76 seventeen.sixteen-sixty five eighteen.five-75 752-1571
ESR-200H 810-1480 sixty three.7-98 twenty five.34-56.92 forty two.34-120 fifty five-132 1426-1934
ESR-250H 990-1480 fifty eighty three.two-205 90-220 2980-3468
ESR300H 990-1480 63.7-ninety eight 86.9-134.1 114.7-270 132-280 3476-3998
ERF-245 650-980 9.eight-98 47.5-ninety seven.4 sixteen-183 eighteen.five-200 3630-3690
ERF-250 650-980 9.eight-ninety eight 61.six-120.4 19-227 22-250 4450-4500
ERF-290 650-980 9.eight-seventy eight.four ninety two.3-128 22-213 thirty-250 4890-4710
ERF-295 650-980 nine.8-78.four ninety seven.3-152.5 23-227 thirty-250 4890-4880
ERF-297 650-980 nine.eight-78.4 87.5-167.6 26-249 thirty-280 5330-5520
ERF-three hundred 650-980 9.eight-seventy eight.4 one hundred and 29-278 37-315 5330-5520
ERF-350 650-980 nine.8-seventy eight.4 126-224.9 34-249 forty five-280 5210-6470
ERG-300 590-730 9.8-98 128.three-196 38-362 forty five-400 9440-15710
ERG-350 590-730 nine.eight-ninety eight 159.three-231.6 forty three-420 fifty five-450 9700-1571
ERG-400 590-730 9.8-eighty three.3 fifty two-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 nine.eight-73.5 262.four-366.2 sixty four-496 seventy five-560 10600-12230
ERG-500 590-730 9.8-63.7 327.4-452.4 seventy eight-529 ninety-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- -49 47.five-97.4 16-ninety five 22-one hundred ten 3425-3360
ERF-250-V 650-980 -9.eight- -forty nine sixty three-120 19-117 22-132 3910-3830
ERF-290-V 650-980 -9.8- -49 72.6-a hundred and forty four 22-136 thirty-160 4415-4270
ERF-295-V 650-980 -nine.eight- -forty nine seventy six.six-152 23-one hundred forty five thirty-one hundred sixty 4425-4485
ERF-297-V 650-980 -nine.eight- -49 eighty four.three-166.eight 26-a hundred and sixty 30-one hundred eighty 5000-4980
ERF-three hundred-V 650-980 -nine.eight- -forty nine ninety seven-192 29-178 37-two hundred 5000-4980
ERF-350-V 650-980 -9.8- -49 116-225 34-209 forty five-250 5400-5700
ERG-300V 590-730 -nine.eight- -49 133-193 38-184 45-220 7800-9100
ERG-350V 590-730 -nine.8- -forty nine 163-231 forty three-216 fifty five-250 9500-9470
ERG-400V 590-730 -9.8- -forty nine 199-290 fifty two-269 seventy five-315 9900-10130
ERG-445V 590-730 -9.8- -49 224.eight-326.9 fifty eight-303 75-355 9900-10130
ERG-450V 590-730 -9.8- -forty nine 255-365 sixty four-335 seventy five-400 11230-11300
ERG-500V 590-730 -nine.eight- -forty nine 314-452 78-412 132-450 13630-13850
ERF-245W 650-980 -13.three- -fifty three.three 53.5-one hundred and one 21.5-102 thirty-110 3630-3360
ERF-250W 650-980 -13.3- -fifty three.3 sixty nine-127 26.5-127 30-one hundred sixty 3985-4115
ERF-290W 650-980 -13.3- -fifty three.3 82.6-a hundred and fifty thirty.5-149 37-185 4340-4580
ERF-295W 650-980 -13.3- -fifty three.three 87-158 32-158 37-185 4440-4580
ERF-297W 650-980 -13.three- -53.3 95-174 36-174 45-two hundred 5230-5130
ERF-300W 650-980 -thirteen.three- -53.3 109-195 40-193 55-220 5230-5130
ERF-350W 650-980 -thirteen.3- -fifty three.three 129-230 50-230 75-250 5840-5670
ERG-300W 590-730 -13.3- -53.3 142-197 fifty two-201 seventy five-220 9100-9000
ERF-350W 590-730 -13.3- -53.three 168-234.4 fifty nine-235.five seventy five-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.3- -fifty three.three 244-294.six eighty two-331 ninety-400 11230-11300
ERG450W 590-730 -thirteen.three- -53.three 275-368.5 ninety one-366 110-400 11230-11300
650-980 98-196 sixty four.eight-112 a hundred thirty five-355 a hundred and sixty-400 8700-8600
650-980 98-196 eighty.8-139 167-439 185-500 9200-9100
650-980 98-176.4 102-174 206-497 250-560 10320-10500
650-980 98-137.2 124-207 241-473 280-560 10700-11110
ETRG-four hundred
(three hundred,400)
590-740 ninety eight-176.4 205-273 380-773 450-900 21350-24200
590-740 ninety eight-176.four 263-428 476-955 560-a thousand 24200-27600
650-980 -53.3–eighty 72-121 75.6-121 90-one hundred sixty 6100-6470
650-980 -53.3–eighty ninety three.8-154 ninety nine.5-186 110-220 7000-6400
650-980 -fifty three.3–80 116-189 115-220 132-250 7750-7760
EL81WD 580-980 nine.eight-58.eight fifty four.two-130 18-151 45-185 3595
EL82WDB 580-980 nine.eight-fifty eight.eight seventy two.8-161 22-191 45-220 3860
EL83WDA 580-980 nine.8-fifty eight.9 one hundred and one-213 28.five-202 45-220 4300
EL84WDA 580-980 9.8-fifty eight.eight 129-267 35.4-252 forty five-280 4720
EL93WDA 580-730 9.eight-forty nine 230-329 56.four-311 seventy five-355 7765
EL94WDA 580-730 nine.eight-49 263-373 sixty four-353 75-four hundred 8130
EL95WDA 490-580 9.eight-fifty eight.8 308-434 eighty one.4-414 ninety-450 11500
EL96WDA 580 58.eight 381 497 560 11500
E397WN 1000-1650 forty five-nine      
E408WN 870-1650 forty 10-22      
E517WN 980-1580 forty 20-thirty      
E520WN 930-1550 40 24-forty five      
E607WN 750-1250 40 forty five-seventy six      
E610WN 750-1250 40 75-a hundred thirty      

Spare parts and framework of our roots blower:

Deal of our Roots Blower

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

Roots blower pack technique identical as iron case, just alter to Fumigation Totally free Plywood Situation

Our manufacturing unit is a skilled manufacturer of Roots blowers which has more than 20 years’ experience in equipment
manufacturing. It is positioned in Xihu (West Lake) Dis. East Industrial Park, 50 kilometers to the east of Shan EPT provincial
cash— HangZhou. Our company also has hassle-free site visitors transportation, as it is fifteen kilometers absent from
Diaozhen City station of HangZhou-HangZhou expressway, and 30 kilometers absent from East HangZhou station of
ZheJiang -ZheJiang expressway.The major item of our organization is ESR -sort Roots Blower. The roots
vacuum pump is a new variety of high-effectiveness roots blower, which is designed independently primarily based on the
domestic and international superior technologies. Several patented technologies have been adopted on Roots
Blower, and therefore we have produced important consequences in energy 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 advanced professional tools as
horizontal machining center, vertical machining center, two-way CNC surface planer, CNC lathe, CNC milling
machine, CNC planer, aircraft grinder, cylindrical grinding equipment, and three coordinates screening device.
In addition to, we have taken a variety of actions to standardize the method movement these kinds of as working and cooperating
with numerous scientific research units, schools and universities at property and overseas. We also continually consider to
absorb and improve the domestic advanced generation technologies, so as to advertise the upgrading and
optimization of the merchandise and make the solution quality get to the innovative degree at home and abroad.
ESR -type Roots Blower contains several series these kinds of as A few-leaves Kind, Two-leaves Variety and Centrifugal
Kind,which can be additional divided to hundreds of varieties. The products are commonly utilised in sewage remedy,
pneumatic conveying,vacuum packaging, aquaculture, foodstuff processing, EPT electrical power, petrochemical, cement,
mining and other industries. Our goods have this sort of positive aspects as lower noise, energy saving, steady good quality,
and long service life, and so forth.. With the product sales outlets throughout the domestic capital metropolitan areas, our goods offer well all
in excess of the nation, and have been exported to North America,Russia, Malaysia, Indonesia, Vietnam, South Africa
and some other international locations. Getting got the ISO9001 Intercontinental Top quality System Certification, we have
proven and improved the quality assurance of the items designing, producing, and installation.
From the approach of layout, study and development to the finished goods, we have got the entire
process managed independently, thus offering the entire foundation and dependability assure for the items security
and longevity. Having a perfect product sales network and following-product sales provider, we provide our clients with increased-
high quality and far more efficient service.All employees of our firm sincerely welcome the wide masses of pals to
guide, and negotiate company with us.

Our Roots Blower Workshop

         Doosn Horzitonal Machine Centre

The Application of the Roots Blower

Maintenance and inspection
(1) Check all fasteners and finding pins situations regardless of whether they are loosening.
(two) Often verify regardless of whether the leakage phenomenon of the physique.
(3) Pay consideration to lubrication, amount of grease and noises when operating,
figure out regardless of whether it functions underneath the needed circumstances.
(4) Lubricant & grease: The lubricant is for medium load industrial gear oil
(grade 220, kinematic viscosity of 198 ~ 242mm2 / s 40ºC, flash stage ≥ 200ºC)
The grease is butter (artificial lithium grease penetration 220-250, fall point ≥
190ºC). Exchange the lubricant and grease after 1st 200 several hours managing, and replace
once again following a moth operating. Later, substitute the lubricant and grease according to the
atmosphere and lubricant (grease) quality suggest a appropriate EPT for a few
(5) Always check the inlet air filter, thoroughly clean or exchange the filter in time.
(six) Blower overload occasionally not right away shown, so spend consideration to
the ingestion and exhaust pressure, bearing temperature and the present enhance developments
of motor to decide no matter whether the blower operates normally
(seven) Just before disassembling the blower, the assembling relation and dimensions
should be recorded or calculated, make marks on parts to make certain the unique
requirements right after assembling.
(8) When newly equipment or overhaul, the oil tank ought to be cleaned ahead of use
and suggest exchange all grease following 8 several hours working.

Typical failure purpose and troubleshooting

No Failure Possible causes Elimination approaches
one Friction
between the
(1) Impurities on the impeller,
ensuing in the gap is too little
(two) Gear put on, resulting in a
big backlash
(3) The equipment is not effectively mounted,
can not preserve the impeller
(four) Bearing use ensuing in
clearance rising.
(1) Remove dirt and verify
regardless of whether there is damage parts
(2) Change the gear gap, substitute
the gears if the equipment backlash is
better than the common 30% to
(three)Re-assemble the gears, hold
the taper make contact with location is to 75%
(4)Exchange the bearing
two Collision
in between
impeller and
wall, the
impeller prime
and casing
(one) Installation hole is not proper
(two) running force is too
high, exceeding the specified
(three) Working temperature is too large
(four) Casing or base deformation,
positioning supporter failure
(five) Bearing axial spot is not excellent
(one) Adjust the gap
(2) Recognize leads to of
overloading, lowered the stress
to the specified price
(three) Check out the installation
precision and reduce the pipe
(4) Check out and fix bearings,
and to make certain the clearance
three Temperature
way too substantial
(one) Oil in tank is also considerably, too
thick or too dirty
(two) Filter or silencer is blocked
(3)The force is higher than
the specified worth
(4)Excessive dress in of the
impeller, huge hole
(five)Inadequate ventilation, indoor
temperature is higher, ensuing in
inlet air’s substantial temperature
(6) The rotating velocity is as well lower,end result in the belt slipping.
(one)Reduce the oil degree or depend on
(2)Get rid of of blocking objects
(3)Minimizing the strain by means of
the blower
(4)Repair its clearance
(5)Open vents to decrease space
(6) Boost pace to avoid the
belt slipping.
four Insufficient
(1) The inlet filter is blocked
(two) Impeller use and the hole
will increase also considerably
(three) Belt slipping
(4) Huge imports pressure loss
(five) Pipeline ventilation leakage
(1) Clean the filter dust and
(two) Fix the hole
(3)Tighten the belt and enhance
the number of belts
(4)Adjust the inlet pressure to the
specified value
(5) Check out and fix the pipeline
5 Oil leaking or
oil leaking
into the enclosure
(one)Higher tank position cause
leakage from the discharge port
(two) Seal put on, ensuing in shaft oil spills
(three) The strain is increased than
the specified worth

(1)Reduce the oil amount
(two)Substitute the seals
(three)Obvious the air vents, 2mm diameter faucet is fixed in the
middle chamber, open the faucet
under the wall
6 Irregular
vibration and
(one)Bearing clearance exceeds the
specified benefit or bearing dress in
(two) The equipment backlash is way too
massive, not in a restricted fixed
(3) The international objects and dust
triggered by the impeller and the
impeller, the impeller and the
housing collision
(4) the impeller shaft
deformation caused the collision
triggered by overload,
(5) Friction amongst the impeller
and the inlet housing induced by
(6) Unbalance of the impeller
induced by fouling or international
entire body
(7) Anchor bolts or other
fasteners are loosened
(1)Change bearings or bearing
(2)Reassemble gear and guarantee
(3)Cleansing blower, check out the
case is damaged
(4)Verify the back again stress, verify
the wheel and change hole
(five)Examine the filter and back again
strain, increase the gap
between the impeller inlet and the
(6)Thoroughly clean the impeller and the
casing, to make certain that the impeller
clearance perform
(7) Tighten the anchor bolts and
leveling the foundation.
seven Motor
(1)In contrast with the necessary
stress, the force difference
is huge that the back pressure or
the inlet force is substantial
(two) In contrast with the
gear specifications, blower
stream is also massive, so its strain
(3)Inlet filter is blocked, or outlet
pipe is obstructed or blocked
(4) Collusion or friction (trapped)
rotating elements
(5) The oil amount is too higher
(six) Slim V-belt is overheat,
vibration is too big, or pulley
is way too tiny
(1) Reduce the force to the
specified price
(two) Exhaust the surplus gas into
the environment or decrease the
blower velocity
(three) Remove the obstructions
(4)Quickly shut down, check
the purpose
(five) Adjust the oil to the correct
(six) Examine the belt rigidity, and
replaced it with massive diameter

Our Services

one. Pre sell service                                                                              2. After promote service                                          
a. suggest the suited model                                             c. on the internet specialized assistance,                                                                                   
b. factory tour                                                                              d. whole life spare parts and techinical assist


twelve months gurantee for our roots blowers

/ The use of original gear manufacturer’s (OEM) part figures or emblems , e.g. CASE® and John Deere® are for reference purposes only and for indicating merchandise use and compatibility. Our company and the listed EPT parts contained herein are not sponsored, accredited, or made by the OEM. /

Intensive  China  in   San Diego United States   full gear coupling  supplier  Type  in   La Paz Xihu (West Lake) Dis.via (Plurinational State of)   tooth coupling  factory  Roots Blower for Pheumatic, Fishery with top quality lowest price

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