Double China in Taiz Yemen zapex coupling sales Oil in Patiala India hydax nylon gear coupling supplier Case Water Cooling High Efficiency Roots Vacuum Pump with top quality lowest price

Double  China  in   Taiz Yemen   zapex coupling sales  Oil  in   Patiala India   hydax nylon gear coupling  supplier  Case Water Cooling High Efficiency Roots Vacuum Pump with top quality lowest price

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

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

Type Diameter Price of movement Pressure
ESR-MJ(Intense Type) Φ50~Φ300mm .five~140m³/min nine.8KPa~ninety eight.8Kpa
ESR(Ordinary Type) Φ50~Φ350mm .five~140m³/min 9.8KPa~78.4Kpa
ESR-H(Substantial-force Sort) Φ50~Φ350mm .seven~160m³/min 58.8KPa~98.8Kpa
ESR-V(Vacuum Pump) Φ50~Φ350mm .5~160m³/min nine.8KPa~53.3Kpa
EL Sequence Φ200~Φ600mm twenty.3~750m³/min nine.8KPa~58.8Kpa
Multistage Centrifugal Blower
or C-Collection
Φ250~Φ500mm 50~500m³/min nine.8KPa~98Kpa
ERR-ERG Kind Φ250~Φ500mm 120~420m³/min nine.8KPa~98.8Kpa

The operating theory 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 equally sides of the cavity. By means of the action 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 gas in the chamber is pushed to attain the
objective of blowing.

Feature of our roots blower:
one. Large adjustment of the air volume
two. Lower Noise
3. Large efficiency
four. Reduced energy cosumption
5. Lengthy time lifestyle
6. Dependable running, straightforward servicing,modest footprint

The parameters of our roots blower:

Sort Ratary Pace
Pressure Rise
Shaft Energy
Motor Unit Maximn
ESR-fifty 1100-2120 9.eight-58.eight .65-two.fifty eight .three-3.fifty four .seventy five-4 128-158
ESR-sixty five 1100-2130 nine.eight-58.8 .ninety four-three.sixty six .38-four.forty six .seventy five-five.5 one hundred fifty five-185
ESR-80 1140-1900 9.8-fifty eight.eight 2.34-five.43 1.04-7.42 two.2-11 a hundred and fifty five-277
ESR-a hundred 1060-1980 9.eight-58.eight four.57-9.05 one.35-twelve.15 three-15 309-377
ESR-one hundred twenty five 980-1850 9.8-fifty eight.eight 5.35-twelve.four 1.sixty five-five.19 five.5-eighteen.5 408-451
ESR-125C 970-1830 nine.8-fifty eight.eight seven.5-17.fifty seven 3.two-eighteen.five 4-22 408-451
ESR-150 810-1730 9.eight-58.8 10.37-27.15 3.eighty four-forty.eighty two seven.five-45 688-848
ESR-a hundred seventy five 970-1520 nine.8-58.8 19.sixty five-36.65 7.two-forty five.ninety five 11-fifty five 980-1080
ESR-200B 740-1450 9.eight-58.8 19.65-44.8 10.15-60.forty four 15-75 1272-1546
ESR-200 810-1480 9.eight-fifty eight.eight 27.65-59.2 8.05-80,12 fifteen-ninety 1272-1546
ESR-250B 1100-1480 nine.8-58.8 54.seventy seven-seventy seven.55 19.ninety seven-90.97 30-110 1490-2454
ESR-250 990-1480 9.eight-fifty eight.eight 61.4-97.52 twenty.1-117.3 thirty-132 1490-2454
ESR-300 990-1480 nine.eight-fifty eight.8 87.1-138.1 26.4-167.8 37-185 3326-3446
ESR-350 730-1480 nine.8-58.eight 78.41-177.31   fifty five-250  
ESR-50H 1230-2120 eight .forty five-2.02 2.05-six.twelve 3-7.five a hundred and sixty–a hundred and seventy
ESR-65H 1240-2130 sixty three.7-ninety eight .78-two.53 2.89-seven.fifty five 4-11 198-230
ESR-80H 1140-1900 eight 1.eighty two-four.55 4.09-10.1 five.5-15 316-326
ESR-100H 1060-1980 sixty three.7-98 two.65-8.06 6.36-seventeen.2 7.five-22 398-459
ESR-125H 980-1850 sixty three.7-98 4.sixty four-11.23 eight.92-24.two eleven-30 544-630
ESR-150H 810-1730 sixty 9.fifty three-25.76 seventeen.16-sixty five 18.five-seventy five 752-1571
ESR-200H 810-1480 eight twenty five.34-fifty six.92 42.34-one hundred twenty 55-132 1426-1934
ESR-250H 990-1480 58-ninety three.7 eighty three.2-205 ninety-220 2980-3468
ESR300H 990-1480 sixty three.7-ninety eight 114.7-270 132-280 3476-3998
ERF-245 650-980 9.eight-98 forty seven.5-ninety seven.4 sixteen-183 eighteen.5-200 3630-3690
ERF-250 650-980 nine.eight-98 sixty one.six-a hundred and twenty.four 19-227 22-250 4450-4500
ERF-290 650-980 9.8-78.4 92.3-128 22-213 30-250 4890-4710
ERF-295 650-980 nine.eight-78.four 97.three-152.five 23-227 thirty-250 4890-4880
ERF-297 650-980 nine.eight-seventy eight.4 87.five-167.six 26-249 30-280 5330-5520
ERF-three hundred 650-980 9.8-78.4 one hundred and one.5-188.7 29-278 37-315 5330-5520
ERF-350 650-980 nine.eight-78.4 126-224.9 34-249 45-280 5210-6470
ERG-three hundred 590-730 9.8-ninety eight 128.three-196 38-362 45-four hundred 9440-15710
ERG-350 590-730 9.8-98 159.three-231.six forty three-420 55-450 9700-1571
ERG-four hundred 590-730 9.eight-83.3 203.1-290.nine 52-449 seventy five-five hundred 10090-11390
ERG-445 590-730 nine.eight-73.five fifty eight-477 seventy five-560 10600-12230
ERG-450 590-730 9.eight-73.five 262.four-366.2 64-496 75-560 10600-12230
ERG-five hundred 590-730 9.eight-63.7 327.four-452.4 78-529 ninety-560 12790-14620
ERF-240-V 650-980 -nine.eight- -49 38.1-78 thirteen-76 18.five-ninety 3420-3285
ERF-245-V 650-980 -9.8- -49 forty seven.five-ninety seven.four sixteen-ninety five 22-a hundred and ten 3425-3360
ERF-250-V 650-980 -nine.eight- -forty nine 63-120 19-117 22-132 3910-3830
ERF-290-V 650-980 -nine.eight- -forty nine seventy two.6-a hundred and forty four 22-136 30-160 4415-4270
ERF-295-V 650-980 -nine.eight- -49 76.6-152 23-a hundred forty five thirty-a hundred and sixty 4425-4485
ERF-297-V 650-980 -nine.eight- -49 eighty four.three-166.8 26-a hundred and sixty thirty-a hundred and eighty 5000-4980
ERF-three hundred-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.eight- -forty nine 133-193 38-184 forty five-220 7800-9100
ERG-350V 590-730 -9.eight- -forty nine 163-231 forty three-216 55-250 9500-9470
ERG-400V 590-730 -9.eight- -49 199-290 52-269 seventy five-315 9900-10130
ERG-445V 590-730 -nine.8- -49 224.eight-326.9 fifty eight-303 seventy five-355 9900-10130
ERG-450V 590-730 -nine.eight- -49 255-365 64-335 seventy five-four hundred 11230-11300
ERG-500V 590-730 -nine.8- -forty nine 314-452 seventy eight-412 132-450 13630-13850
ERF-245W 650-980 -thirteen.three- -fifty three.3 fifty three.five-a hundred and one 21.5-102 30-110 3630-3360
ERF-250W 650-980 -13.three- -53.three sixty nine-127 26.five-127 30-a hundred and sixty 3985-4115
ERF-290W 650-980 -13.3- -fifty three.3 eighty two.6-one hundred fifty 30.5-149 37-185 4340-4580
ERF-295W 650-980 -13.three- -53.3 87-158 32-158 37-185 4440-4580
ERF-297W 650-980 -13.three- -fifty three.3 95-174 36-174 45-200 5230-5130
ERF-300W 650-980 -thirteen.three- -53.3 109-195 40-193 fifty five-220 5230-5130
ERF-350W 650-980 -thirteen.3- -fifty three.3 129-230 fifty-230 seventy five-250 5840-5670
ERG-300W 590-730 -13.3- -fifty three.3 142-197 52-201 75-220 9100-9000
ERF-350W 590-730 -13.three- -53.three 168-234.4 59-235.5 seventy five-280 9500-9600
ERG-400W 590-730 -thirteen.three- -53.3 220-276.six 71-292 ninety-315 9900-10130
ERG-445W 590-730 -thirteen.3- -53.3 244-294.6 eighty two-331 90-400 11230-11300
ERG450W 590-730 -thirteen.three- -fifty three.three 275-368.5 ninety one-366 a hundred and ten-400 11230-11300
650-980 ninety eight-196 sixty four.eight-112 135-355 160-four hundred 8700-8600
650-980 98-196 eighty.8-139 167-439 185-five hundred 9200-9100
ETRF-three hundred
650-980 ninety eight-176.4 102-174 206-497 250-560 10320-10500
650-980 ninety eight-137.two 124-207 241-473 280-560 10700-11110
ETRG-four hundred
(three hundred,four hundred)
590-740 ninety eight-176.4 205-273 380-773 450-900 21350-24200
590-740 98-176.4 263-428 476-955 560-one thousand 24200-27600
650-980 -53.3–80 72-121 seventy five.six-121 ninety-160 6100-6470
650-980 -fifty three.3–80 93.8-154 ninety nine.five-186 one hundred ten-220 7000-6400
(2505/three hundred)
650-980 -53.three–eighty 116-189 115-220 132-250 7750-7760
EL81WD 580-980 9.8-58.8 54.two-one hundred thirty eighteen-151 forty five-185 3595
EL82WDB 580-980 nine.8-fifty eight.8 72.eight-161 22-191 45-220 3860
EL83WDA 580-980 9.eight-fifty eight.nine one hundred and one-213 28.5-202 forty five-220 4300
EL84WDA 580-980 nine.8-58.eight 129-267 35.four-252 45-280 4720
EL93WDA 580-730 9.eight-49 230-329 56.4-311 75-355 7765
EL94WDA 580-730 9.eight-49 263-373 64-353 75-four hundred 8130
EL95WDA 490-580 nine.8-fifty eight.8 308-434 eighty one.4-414 ninety-450 11500
EL96WDA 580 58.8 381 497 560 11500
E397WN a thousand-1650 forty 5-9      
E408WN 870-1650 40 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 forty 75-130      

Spare parts and construction of our roots blower:

Package of our Roots Blower

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

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

Our manufacturing facility is a professional producer of Roots blowers which has in excess of twenty years’ experience in equipment
manufacturing. It is located in Xihu (West Lake) Dis. East Industrial Park, 50 kilometers to the east of Shan EPT provincial
funds— HangZhou. Our firm also has hassle-free site visitors transportation, as it is fifteen kilometers absent from
Diaozhen City station of HangZhou-HangZhou expressway, and thirty kilometers absent from East HangZhou station of
ZheJiang -ZheJiang expressway.The major merchandise of our firm is ESR -variety Roots Blower. The roots
vacuum pump is a new sort of substantial-effectiveness roots blower, which is created independently primarily based on the
domestic and overseas sophisticated technologies. Several patented technologies have been adopted on Roots
Blower, and as a result we have made significant results in power conservation and noise reduction, and many others.. So significantly, our
company has invested more than 30,000,000 RMB to introduce these kinds of superior specialist products as
horizontal machining heart, vertical machining middle, two-way CNC surface area planer, CNC lathe, CNC milling
equipment, CNC planer, aircraft grinder, cylindrical grinding device, and three coordinates tests machine.
Aside from, we have taken numerous steps to standardize the approach circulation this kind of as working and cooperating
with a lot of scientific research units, faculties and universities at house and overseas. We also continuously try out to
take in and enhance the domestic sophisticated manufacturing technologies, so as to promote the upgrading and
optimization of the solution and make the merchandise high quality achieve the advanced degree at property and overseas.
ESR -kind Roots Blower involves a number of series this kind of as Three-leaves Variety, Two-leaves Kind and Centrifugal
Type,which can be additional divided to hundreds of types. The items are broadly utilized in sewage therapy,
pneumatic conveying,vacuum packaging, aquaculture, foodstuff processing, EPT energy, petrochemical, cement,
mining and other industries. Our products have this sort of positive aspects as low sound, vitality saving, steady quality,
and long support life, and so on.. With the revenue outlets throughout the domestic funds towns, our products promote properly all
above the country, and have been exported to North The us,Russia, Malaysia, Indonesia, Vietnam, South Africa
and some other nations. Obtaining acquired the ISO9001 Worldwide Quality System Certification, we have
proven and improved the good quality assurance of the merchandise designing, manufacturing, and set up.
From the process of design and style, investigation and improvement to the concluded items, we have acquired the whole
procedure managed independently, thus delivering the entire basis and reliability ensure for the products balance
and toughness. Obtaining a perfect sales community and following-sales support, we supply our customers with larger-
quality and much more successful provider.All workers of our company sincerely welcome the broad masses of buddies to
guide, and negotiate organization with us.

Our Roots Blower Workshop

         Doosn Horzitonal Equipment Middle

The Software of the Roots Blower

Routine maintenance and inspection
(1) Check all fasteners and finding pins situations no matter whether they are loosening.
(two) Constantly examine no matter whether the leakage phenomenon of the physique.
(three) Spend consideration to lubrication, quantity of grease and noises when managing,
figure out regardless of whether it operates underneath the necessary conditions.
(four) Lubricant & grease: The lubricant is for medium load industrial gear oil
(quality 220, kinematic viscosity of 198 ~ 242mm2 / s 40ºC, flash stage ≥ 200ºC)
The grease is butter (artificial lithium grease penetration 220-250, drop stage ≥
190ºC). Exchange the lubricant and grease after initial two hundred hrs managing, and substitute
once again following a moth working. Later on, replace the lubricant and grease according to the
surroundings and lubricant (grease) top quality propose a suited EPT for a few
(five) Always check the inlet air filter, clear or change the filter in time.
(6) Blower overload sometimes not quickly displayed, so pay out focus to
the ingestion and exhaust pressure, bearing temperature and the existing enhance tendencies
of motor to establish whether or not the blower works normally
(7) Before disassembling the blower, the assembling relation and dimensions
should be recorded or calculated, make marks on elements to guarantee the original
requirements following assembling.
(8) When newly device or overhaul, the oil tank ought to be cleaned prior to use
and suggest exchange all grease soon after 8 hours running.

Typical failure cause and troubleshooting

No Failure Possible factors Elimination techniques
one Friction
between the
(one) Impurities on the impeller,
ensuing in the gap is as well small
(2) Gear use, resulting in a
huge backlash
(three) The gear is not well mounted,
can not preserve the impeller
(four) Bearing dress in resulting in
clearance rising.
(1) Take away dirt and examine
regardless of whether there is damage areas
(2) Modify the gear gap, change
the gears if the equipment backlash is
greater than the average 30% to
(three)Re-assemble the gears, maintain
the taper make contact with spot is to 75%
(4)Change the bearing
2 Collision
impeller and
wall, the
impeller prime
and casing
(one) Installation hole is not correct
(2) working pressure is also
large, exceeding the specified
(three) Functioning temperature is too high
(4) Casing or base deformation,
positioning fan failure
(5) Bearing axial spot is not good
(1) Alter the hole
(two) Discover causes of
overloading, reduced the pressure
to the specified price
(three) Check the installation
accuracy and decrease the pipe
(four) Examine and mend bearings,
and to make certain the clearance
3 Temperature
also higher
(1) Oil in tank is as well much, too
thick or as well dirty
(2) Filter or silencer is blocked
(3)The strain is increased than
the specified price
(four)Extreme put on of the
impeller, massive hole
(five)Poor air flow, indoor
temperature is substantial, resulting in
inlet air’s higher temperature
(6) The rotating pace is as well low,result in the belt slipping.
(1)Minimize the oil amount or depend on
(2)Take away of blocking objects
(three)Minimizing the force via
the blower
(four)Fix its clearance
(five)Open vents to decrease room
(six) Enhance pace to avoid the
belt slipping.
four Insufficient
(1) The inlet filter is blocked
(2) Impeller use and the hole
will increase too a lot
(3) Belt slipping
(four) Big imports pressure decline
(5) Pipeline ventilation leakage
(1) Cleanse the filter dust and
(two) Restore the gap
(3)Tighten the belt and enhance
the number of belts
(4)Modify the inlet pressure to the
specified price
(five) Check and repair the pipeline
5 Oil leaking or
oil leaking
into the enclosure
(1)Large tank situation cause
leakage from the discharge port
(2) Seal put on, resulting in shaft oil spills
(3) The pressure is larger than
the specified price

(one)Lessen the oil degree
(2)Substitute the seals
(3)Obvious the air vents, 2mm diameter faucet is fixed in the
center chamber, open the faucet
under the wall
6 Abnormal
vibration and
(1)Bearing clearance exceeds the
specified price or bearing put on
(2) The equipment backlash is as well
big, not in a limited mounted
(3) The foreign objects and dust
brought on by the impeller and the
impeller, the impeller and the
housing collision
(four) the impeller shaft
deformation triggered the collision
triggered by overload,
(5) Friction amongst the impeller
and the inlet housing brought on by
(six) Unbalance of the impeller
caused by fouling or foreign
human body
(seven) Anchor bolts or other
fasteners are loosened
(1)Replace bearings or bearing
(2)Reassemble gear and guarantee
(3)Cleansing blower, check out the
scenario is destroyed
(4)Check out the back again stress, check out
the wheel and adjust gap
(5)Examine the filter and again
force, enhance the gap
among the impeller inlet and the
(six)Clean the impeller and the
casing, to ensure that the impeller
clearance operate
(7) Tighten the anchor bolts and
leveling the foundation.
seven Motor
(one)When compared with the required
stress, the stress big difference
is massive that the again strain or
the inlet force is large
(2) In contrast with the
tools requirements, blower
flow is as well huge, so its pressure
will increase
(3)Inlet filter is blocked, or outlet
pipe is obstructed or blocked
(four) Collusion or friction (trapped)
rotating elements
(five) The oil degree is too high
(six) Slim V-belt is overheat,
vibration is too large, or pulley
is also tiny
(one) Reduce the stress to the
specified value
(2) Exhaust the excess fuel into
the ambiance or reduce the
blower pace
(3) Take away the obstructions
(4)Right away shut down, verify
the purpose
(5) Alter the oil to the right
(six) Check out the belt rigidity, and
replaced it with huge diameter

Our Services

1. Pre offer service                                                                              two. Soon after market service                                          
a. suggest the suited model                                             c. on the internet technological assistance,                                                                                   
b. manufacturing facility tour                                                                              d. entire life spare components and techinical assist


twelve months gurantee for our roots blowers

/ The use of unique products manufacturer’s (OEM) portion figures or logos , e.g. CASE® and John Deere® are for reference needs only and for indicating solution use and compatibility. Our business and the outlined EPT areas contained herein are not sponsored, approved, or made by the OEM. /

Double  China  in   Taiz Yemen   zapex coupling sales  Oil  in   Patiala India   hydax nylon gear coupling  supplier  Case Water Cooling High Efficiency Roots Vacuum Pump with top quality lowest price

grid coupling

As one of leading grid coupling manufacturers, suppliers and exporters of products, We offer grid coupling and many other products.

Please contact us for details.

Mail:[email protected]

Manufacturer supplier exporter of grid coupling.


Recent Posts