Double China in Guadalajara Mexico flender gear coupling shop Oil in Jacksonville United States nylon coupling sleeve factory Case Roots Blower for Pheumatic, Fishery with top quality lowest price

Double  China  in   Guadalajara Mexico   flender gear coupling  shop  Oil  in   Jacksonville United States   nylon coupling sleeve  factory  Case Roots Blower for Pheumatic, Fishery with top quality lowest price

We – EPG Group the biggest couplings and gears manufacturing facility in China with 5 distinct branches. For far more details: Cellular/whatsapp/telegram/Kakao us at: 0086-13083988828 /

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

Kind Diameter Fee of stream Strain
ESR-MJ(Intense Type) Φ50~Φ300mm .five~140m³/min nine.8KPa~98.8Kpa
ESR(Common Sort) Φ50~Φ350mm .5~140m³/min 9.8KPa~seventy eight.4Kpa
ESR-H(High-force Sort) Φ50~Φ350mm .seven~160m³/min fifty eight.8KPa~98.8Kpa
ESR-V(Vacuum Pump) Φ50~Φ350mm .five~160m³/min 9.8KPa~53.3Kpa
EL Series Φ200~Φ600mm twenty.three~750m³/min nine.8KPa~fifty eight.8Kpa
Multistage Centrifugal Blower
or C-Sequence
Φ250~Φ500mm fifty~500m³/min nine.8KPa~98Kpa
ERR-ERG Sort Φ250~Φ500mm 120~420m³/min nine.8KPa~98.8Kpa

The operating principle of the 3-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 action of a pair of
synchronous gears, the two rotors rotate in reverse 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.

Function of our roots blower:
1. Huge adjustment of the air quantity
2. Lower Sounds
three. Substantial effectiveness
4. Lower power cosumption
5. Prolonged time lifestyle
six. Dependable operating, simple routine maintenance,little footprint

The parameters of our roots blower:

Variety Ratary Velocity
Pressure Rise
Shaft Electricity
Motor Unit Maximn
ESR-50 1100-2120 9.eight-fifty eight.8 .sixty five-two.fifty eight .3-three.fifty four .75-four 128-158
ESR-65 1100-2130 nine.eight-58.8 .94-3.sixty six .38-4.forty six .75-5.5 a hundred and fifty five-185
ESR-80 1140-1900 nine.eight-58.eight two.34-5.forty three 1.04-7.42 2.2-11 155-277
ESR-100 1060-1980 9.eight-58.8 four.fifty seven-9.05 one.35-twelve.15 3-fifteen 309-377
ESR-a hundred twenty five 980-1850 9.8-58.8 5.35-12.four one.65-5.19 five.5-eighteen.5 408-451
ESR-125C 970-1830 nine.8-58.8 7.5-17.fifty seven 3.2-eighteen.5 four-22 408-451
ESR-a hundred and fifty 810-1730 9.8-58.8 10.37-27.fifteen three.84-40.eighty two 7.5-45 688-848
ESR-a hundred seventy five 970-1520 nine.8-fifty eight.eight 19.sixty five-36.65 7.two-45.ninety five eleven-fifty five 980-1080
ESR-200B 740-1450 9.eight-58.eight 19.sixty five-forty four.8 ten.15-sixty.44 fifteen-seventy five 1272-1546
ESR-two hundred 810-1480 9.eight-58.8 27.sixty five-fifty nine.2 eight.05-eighty,twelve fifteen-90 1272-1546
ESR-250B 1100-1480 nine.8-58.eight fifty four.seventy seven-77.55 19.ninety seven-90.97 thirty-a hundred and ten 1490-2454
ESR-250 990-1480 9.eight-58.eight sixty one.four-ninety seven.52 thirty-132 1490-2454
ESR-300 990-1480 nine.eight-fifty eight.8 26.4-167.eight 37-185 3326-3446
ESR-350 730-1480 9.8-fifty eight.eight 78.forty one-177.31   55-250  
ESR-50H 1230-2120 sixty .45-2.02 two.05-six.twelve 3-7.5 160–one hundred seventy
ESR-65H 1240-2130 sixty .78-two.fifty three 2.89-7.fifty five four-11 198-230
ESR-80H 1140-1900 eight one.82-four.fifty five four.09-ten.1 five.5-fifteen 316-326
ESR-100H 1060-1980 sixty two.sixty five-eight.06 six.36-seventeen.two seven.five-22 398-459
ESR-125H 980-1850 63.7-ninety eight 4.64-11.23 eight.ninety two-24.two eleven-30 544-630
ESR-150H 810-1730 sixty three.7-ninety eight 9.53-25.seventy six seventeen.sixteen-65 18.five-seventy five 752-1571
ESR-200H 810-1480 63.7-ninety eight twenty five.34-56.ninety two 42.34-120 fifty five-132 1426-1934
ESR-250H 990-1480 eight 58-ninety eighty three.2-205 90-220 2980-3468
ESR300H 990-1480 eight 86.nine-134.1 114.7-270 132-280 3476-3998
ERF-245 650-980 9.eight-98 forty seven.five-ninety seven.4 sixteen-183 18.5-200 3630-3690
ERF-250 650-980 nine.8-ninety eight sixty one.6-120.four 19-227 22-250 4450-4500
ERF-290 650-980 nine.eight-78.four ninety two.three-128 22-213 thirty-250 4890-4710
ERF-295 650-980 9.8-seventy eight.four ninety seven.3-152.5 23-227 30-250 4890-4880
ERF-297 650-980 9.8-seventy eight.four 87.five-167.6 26-249 thirty-280 5330-5520
ERF-three hundred 650-980 9.8-78.4 one zero one.5-188.7 29-278 37-315 5330-5520
ERF-350 650-980 nine.eight-seventy eight.four 126-224.9 34-249 45-280 5210-6470
ERG-300 590-730 nine.eight-98 128.3-196 38-362 45-400 9440-15710
ERG-350 590-730 9.8-ninety eight 159.three-231.6 forty three-420 fifty five-450 9700-1571
ERG-400 590-730 9.8-83.three 203.1-290.nine 52-449 75-five hundred 10090-11390
ERG-445 590-730 9.eight-73.five 229.7-327.8 fifty eight-477 seventy five-560 10600-12230
ERG-450 590-730 9.8-73.five 262.4-366.two sixty four-496 75-560 10600-12230
ERG-500 590-730 327.four-452.4 seventy eight-529 ninety-560 12790-14620
ERF-240-V 650-980 -nine.8- -forty nine 38.1-seventy eight 13-seventy six eighteen.five-ninety 3420-3285
ERF-245-V 650-980 -nine.eight- -forty nine forty seven.5-ninety seven.four sixteen-95 22-a hundred and ten 3425-3360
ERF-250-V 650-980 -9.eight- -forty nine sixty three-a hundred and twenty 19-117 22-132 3910-3830
ERF-290-V 650-980 -nine.eight- -forty nine seventy two.six-one hundred forty four 22-136 30-a hundred and sixty 4415-4270
ERF-295-V 650-980 -9.eight- -49 76.6-152 23-a hundred forty five thirty-160 4425-4485
ERF-297-V 650-980 -9.8- -49 eighty four.three-166.8 26-a hundred and sixty thirty-one hundred eighty 5000-4980
ERF-300-V 650-980 -nine.8- -forty nine ninety seven-192 29-178 37-200 5000-4980
ERF-350-V 650-980 -nine.8- -forty nine 116-225 34-209 forty five-250 5400-5700
ERG-300V 590-730 -9.eight- -forty nine 133-193 38-184 forty five-220 7800-9100
ERG-350V 590-730 -nine.eight- -forty nine 163-231 43-216 fifty five-250 9500-9470
ERG-400V 590-730 -9.8- -forty nine 199-290 52-269 75-315 9900-10130
ERG-445V 590-730 -9.8- -forty nine 224.eight-326.9 fifty eight-303 seventy five-355 9900-10130
ERG-450V 590-730 -nine.eight- -forty nine 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 -13.3- -53.3 fifty three.5-one hundred and one 21.five-102 thirty-one hundred ten 3630-3360
ERF-250W 650-980 -13.3- -53.3 sixty nine-127 26.5-127 30-one hundred sixty 3985-4115
ERF-290W 650-980 -13.three- -53.three 82.6-one hundred fifty 30.5-149 37-185 4340-4580
ERF-295W 650-980 -13.three- -fifty three.three 87-158 32-158 37-185 4440-4580
ERF-297W 650-980 -thirteen.three- -53.3 ninety five-174 36-174 45-200 5230-5130
ERF-300W 650-980 -13.three- -53.3 109-195 40-193 55-220 5230-5130
ERF-350W 650-980 -13.3- -fifty three.three 129-230 fifty-230 seventy five-250 5840-5670
ERG-300W 590-730 -13.three- -53.3 142-197 fifty two-201 seventy five-220 9100-9000
ERF-350W 590-730 -13.3- -fifty three.three 168-234.4 59-235.5 seventy five-280 9500-9600
ERG-400W 590-730 -13.three- -53.three 220-276.6 seventy one-292 ninety-315 9900-10130
ERG-445W 590-730 -13.3- -53.three 244-294.six 82-331 ninety-400 11230-11300
ERG450W 590-730 -thirteen.3- -fifty three.three 275-368.5 91-366 one hundred ten-four hundred 11230-11300
650-980 98-196 64.eight-112 a hundred thirty five-355 one hundred sixty-four hundred 8700-8600
650-980 98-196 eighty.eight-139 167-439 185-500 9200-9100
ETRF-three hundred
650-980 98-176.4 102-174 206-497 250-560 10320-10500
650-980 98-137.two 124-207 241-473 280-560 10700-11110
(three hundred,400)
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 -53.three–eighty 72-121 75.six-121 ninety-160 6100-6470
650-980 -53.three–eighty 93.eight-154 ninety nine.five-186 110-220 7000-6400
650-980 -fifty three.three–eighty 116-189 one hundred fifteen-220 132-250 7750-7760
EL81WD 580-980 nine.eight-58.8 fifty four.two-a hundred thirty 18-151 forty five-185 3595
EL82WDB 580-980 nine.8-58.eight 72.8-161 22-191 forty five-220 3860
EL83WDA 580-980 9.8-fifty eight.9 one zero one-213 28.5-202 forty five-220 4300
EL84WDA 580-980 nine.eight-58.8 129-267 35.four-252 forty five-280 4720
EL93WDA 580-730 9.8-49 230-329 56.4-311 75-355 7765
EL94WDA 580-730 nine.eight-49 263-373 64-353 75-four hundred 8130
EL95WDA 490-580 nine.8-fifty eight.eight 308-434 81.4-414 90-450 11500
EL96WDA 580 fifty eight.eight 381 497 560 11500
E397WN one thousand-1650 40 five-9      
E408WN 870-1650 forty ten-22      
E517WN 980-1580 forty 20-30      
E520WN 930-1550 forty 24-45      
E607WN 750-1250 40 forty five-seventy six      
E610WN 750-1250 40 seventy five-130      

Spare parts and framework of our roots blower:

Deal of our Roots Blower

Pack into iron case, two layer,blower body and motor in reduce layer, inlet/out silencer and many others in upper layer

Roots blower pack technique same as iron circumstance, just adjust to Fumigation Free of charge Plywood Circumstance

Our manufacturing unit is a professional manufacturer of Roots blowers which has over 20 years’ experience in equipment
manufacturing. It is located in Xihu (West Lake) Dis. East Industrial Park, fifty kilometers to the east of Shan EPT provincial
money— HangZhou. Our organization also has handy traffic transportation, as it is fifteen kilometers absent 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 -variety Roots Blower. The roots
vacuum pump is a new kind of high-effectiveness roots blower, which is designed independently dependent on the
domestic and foreign superior technologies. Several patented technologies have been adopted on Roots
Blower, and hence we have manufactured considerable consequences in power conservation and noise reduction, etc.. So far, our
business has invested far more than 30,000,000 RMB to introduce such sophisticated professional tools as
horizontal machining centre, vertical machining centre, two-way CNC surface area planer, CNC lathe, CNC milling
machine, CNC planer, plane grinder, cylindrical grinding machine, and three coordinates testing machine.
In addition to, we have taken a variety of steps to standardize the method circulation this sort of as operating and cooperating
with several scientific research units, schools and universities at home and overseas. We also constantly try to
take up and boost the domestic advanced creation technologies, so as to market the upgrading and
optimization of the item and make the merchandise good quality attain the superior degree at property and overseas.
ESR -sort Roots Blower includes a number of sequence this sort of as A few-leaves Variety, Two-leaves Type and Centrifugal
Sort,which can be further divided to hundreds of types. The merchandise are extensively utilised in sewage therapy,
pneumatic conveying,vacuum packaging, aquaculture, foodstuff processing, EPT power, petrochemical, cement,
mining and other industries. Our goods have this kind of advantages as minimal noise, power conserving, steady high quality,
and extended service lifestyle, and so on.. With the sales outlets throughout the domestic cash cities, our merchandise offer nicely all
in excess of the region, and have been exported to North The united states,Russia, Malaysia, Indonesia, Vietnam, South Africa
and some other nations. Getting acquired the ISO9001 Intercontinental Quality Program Certification, we have
recognized and improved the top quality assurance of the merchandise creating, producing, and installation.
From the procedure of design and style, research and improvement to the completed goods, we have received the entire
procedure controlled independently, thus offering the total foundation and dependability guarantee for the goods steadiness
and durability. Getting a perfect product sales community and right after-revenue services, we offer our customers with higher-
high quality and much more effective provider.All staff of our business sincerely welcome the broad masses of pals to
guidebook, and negotiate enterprise with us.

Our Roots Blower Workshop

         Doosn Horzitonal Device Middle

The Software of the Roots Blower

Servicing and inspection
(one) Check all fasteners and locating pins problems no matter whether they are loosening.
(two) Often check out no matter whether the leakage phenomenon of the human body.
(3) Pay out attention to lubrication, amount of grease and noises when running,
figure out regardless of whether it performs beneath the needed situations.
(four) Lubricant & grease: The lubricant is for medium load industrial gear oil
(quality 220, kinematic viscosity of 198 ~ 242mm2 / s 40ºC, flash point ≥ 200ºC)
The grease is butter (synthetic lithium grease penetration 220-250, drop level ≥
190ºC). Change the lubricant and grease soon after 1st 200 hrs running, and substitute
once more right after a moth operating. Afterwards, substitute the lubricant and grease in accordance to the
environment and lubricant (grease) top quality propose a suitable EPT for 3
(5) Often verify the inlet air filter, clear or change the filter in time.
(six) Blower overload often not immediately shown, so pay out interest to
the intake and exhaust stress, bearing temperature and the recent enhance tendencies
of motor to figure out whether the blower functions typically
(7) Just before disassembling the blower, the assembling relation and proportions
should be recorded or calculated, make marks on components to make certain the unique
specifications after assembling.
(eight) When recently device or overhaul, the oil tank ought to be cleaned prior to use
and suggest replace all grease right after 8 hrs managing.

Common failure reason and troubleshooting

No Failure Achievable motives Elimination techniques
one Friction
amongst the
(one) Impurities on the impeller,
resulting in the gap is way too small
(2) Gear use, resulting in a
massive backlash
(3) The gear is not effectively mounted,
can not sustain the impeller
(4) Bearing dress in resulting in
clearance increasing.
(one) Take away dust and check
whether or not there is harm elements
(2) Change the gear gap, exchange
the gears if the gear backlash is
greater than the typical thirty% to
(3)Re-assemble the gears, preserve
the taper get in touch with spot is to 75%
(four)Substitute the bearing
two Collision
impeller and
wall, the
impeller top
and casing
(one) Set up gap is not proper
(two) working force is also
substantial, exceeding the specified
(three) Operating temperature is as well substantial
(4) Casing or foundation deformation,
positioning enthusiast failure
(five) Bearing axial place is not good
(1) Change the hole
(2) Recognize triggers of
overloading, diminished the pressure
to the specified benefit
(3) Check the installation
precision and decrease the pipe
(4) Examine and restore bearings,
and to make sure the clearance
3 Temperature
also substantial
(1) Oil in tank is also much, as well
thick or as well soiled
(2) Filter or silencer is blocked
(three)The stress is higher than
the specified value
(four)Excessive wear of the
impeller, big hole
(5)Inadequate ventilation, indoor
temperature is high, ensuing in
inlet air’s large temperature
(six) The rotating velocity is also minimal,consequence in the belt slipping.
(one)Lessen the oil stage or count on
(2)Remove of blocking objects
(three)Lowering the stress by way of
the blower
(four)Restore its clearance
(five)Open vents to minimize place
(6) Improve pace to stop the
belt slipping.
four Inadequate
(one) The inlet filter is blocked
(two) Impeller put on and the gap
boosts also considerably
(three) Belt slipping
(four) Huge imports strain loss
(5) Pipeline ventilation leakage
(one) Clean the filter dust and
(2) Repair the gap
(3)Tighten the belt and boost
the amount of belts
(4)Change the inlet stress to the
specified value
(5) Check out and restore the pipeline
five Oil leaking or
oil leaking
into the enclosure
(1)Substantial tank position result in
leakage from the discharge port
(two) Seal wear, resulting in shaft oil spills
(3) The force is increased than
the specified value

(one)Decrease the oil degree
(two)Substitute the seals
(three)Very clear the air vents, 2mm diameter faucet is fastened in the
center chamber, open up the faucet
underneath the wall
six Irregular
vibration and
(one)Bearing clearance exceeds the
specified benefit or bearing dress in
(2) The equipment backlash is as well
massive, not in a tight fastened
(three) The international objects and dust
brought on by the impeller and the
impeller, the impeller and the
housing collision
(four) the impeller shaft
deformation caused the collision
brought on by overload,
(5) Friction amongst the impeller
and the inlet housing triggered by
(6) Unbalance of the impeller
caused by fouling or overseas
(seven) Anchor bolts or other
fasteners are loosened
(1)Replace bearings or bearing
(two)Reassemble gear and ensure
(3)Cleaning blower, examine the
scenario is ruined
(four)Verify the again force, check out
the wheel and adjust gap
(5)Check out the filter and back
stress, boost the hole
in between the impeller inlet and the
(six)Cleanse the impeller and the
casing, to make sure that the impeller
clearance perform
(7) Tighten the anchor bolts and
leveling the base.
seven Motor
(one)In comparison with the necessary
stress, the strain variation
is large that the back pressure or
the inlet stress is substantial
(2) When compared with the
tools demands, blower
movement is way too big, so its force
will increase
(three)Inlet filter is blocked, or outlet
pipe is obstructed or blocked
(4) Collusion or friction (stuck)
rotating elements
(5) The oil degree is way too large
(6) Narrow V-belt is overheat,
vibration is also huge, or pulley
is too tiny
(1) Decrease the force to the
specified value
(2) Exhaust the extra fuel into
the ambiance or minimize the
blower speed
(three) Take away the obstructions
(four)Right away shut down, check
the reason
(5) Change the oil to the appropriate
(six) Examine the belt stress, and
replaced it with large diameter

Our Service

one. Pre promote service                                                                              2. Following sell service                                          
a. advocate the ideal model                                             c. online technical assistance,                                                                                   
b. factory tour                                                                              d. total daily life spare parts and techinical assistance


twelve months gurantee for our roots blowers

/ The use of unique products manufacturer’s (OEM) part quantities or logos , e.g. CASE® and John Deere® are for reference purposes only and for indicating item use and compatibility. Our firm and the shown EPT elements contained herein are not sponsored, authorized, or manufactured by the OEM. /

Double  China  in   Guadalajara Mexico   flender gear coupling  shop  Oil  in   Jacksonville United States   nylon coupling sleeve  factory  Case Roots Blower for Pheumatic, Fishery with top quality lowest price

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