Water Cooling High Efficiency Roots Vacuum Pump

Water Cooling High Efficiency Roots Vacuum Pump

We make all kinds of roots blower, centrifugal blower, Our Main products are as underneath:

Variety Diameter Charge of movement Force
ESR-MJ(Intensive Variety) Φ50~Φ300mm .5~140m³/min nine.8KPa~98.8Kpa
ESR(Common Variety) Φ50~Φ350mm .5~140m³/min 9.8KPa~seventy eight.4Kpa
ESR-H(High-force Type) Φ50~Φ350mm .seven~160m³/min 58.8KPa~ninety eight.8Kpa
ESR-V(Vacuum Pump) Φ50~Φ350mm .5~160m³/min nine.8KPa~fifty three.3Kpa
EL Collection Φ200~Φ600mm 20.3~750m³/min 9.8KPa~fifty eight.8Kpa
Multistage Centrifugal Blower
or C-Sequence
Φ250~Φ500mm fifty~500m³/min nine.8KPa~98Kpa
ERR-ERG Type Φ250~Φ500mm 120~420m³/min 9.8KPa~ninety eight.8Kpa

The working principle of the a few-blade roots blower: two three-lobed rotors are arranged in the cavity, and the
suction port and the discharge port are opened on both sides of the cavity. By means of 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 gas in the chamber is pushed to obtain the
goal of blowing.

Characteristic of our roots blower:
one. Big adjustment of the air volume
two. Lower Sound
three. High performance
4. Lower strength cosumption
5. Extended time existence
6. Dependable working, straightforward maintenance,tiny footprint

The parameters of our roots blower:

Kind Ratary Speed
Strain Rise
Shaft Electrical power
Motor Unit Maximn
Electrical power
ESR-fifty 1100-2120 9.8-fifty eight.eight .65-two.fifty eight .3-three.54 .seventy five-4 128-158
ESR-65 1100-2130 nine.8-58.8 .ninety four-3.sixty six .38-4.forty six .seventy five-five.5 a hundred and fifty five-185
ESR-80 1140-1900 nine.eight-58.8 2.34-5.43 one.04-seven.forty two two.2-11 a hundred and fifty five-277
ESR-100 1060-1980 9.eight-58.8 4.fifty seven-nine.05 one.35-twelve.fifteen three-fifteen 309-377
ESR-125 980-1850 nine.eight-58.8 5.35-twelve.four one.65-five.19 5.5-eighteen.five 408-451
ESR-125C 970-1830 9.8-58.eight 7.5-17.57 three.two-eighteen.five four-22 408-451
ESR-a hundred and fifty 810-1730 9.eight-58.8 ten.37-27.15 3.eighty four-40.82 7.5-forty five 688-848
ESR-one hundred seventy five 970-1520 9.8-fifty eight.eight 19.sixty five-36.sixty five seven.2-45.ninety five eleven-55 980-1080
ESR-200B 740-1450 9.eight-fifty eight.eight 19.sixty five-44.8 ten.15-sixty.forty four 15-75 1272-1546
ESR-two hundred 810-1480 nine.eight-58.eight 27.sixty five-fifty nine.2 8.05-80,12 15-ninety 1272-1546
ESR-250B 1100-1480 nine.eight-fifty eight.eight 54.seventy seven-seventy seven.55 19.97-90.ninety seven thirty-110 1490-2454
ESR-250 990-1480 9.8-fifty eight.8 61.four-97.52 twenty.one-117.3 thirty-132 1490-2454
ESR-300 990-1480 nine.8-fifty eight.eight 87.one-138.1 26.four-167.8 37-185 3326-3446
ESR-350 730-1480 9.eight-fifty eight.8 seventy eight.forty one-177.31   fifty five-250  
ESR-50H 1230-2120 sixty three.seven-ninety eight .forty five-two.02 2.05-six.twelve three-seven.5 one hundred sixty–170
ESR-65H 1240-2130 63.7-98 .seventy eight-two.53 two.89-seven.55 four-eleven 198-230
ESR-80H 1140-1900 sixty three.seven-ninety eight one.eighty two-4.55 4.09-ten.1 five.5-fifteen 316-326
ESR-100H 1060-1980 sixty three.7-ninety eight two.65-eight.06 six.36-17.two seven.five-22 398-459
ESR-125H 980-1850 sixty three.seven-98 four.sixty four-eleven.23 eight.92-24.2 11-thirty 544-630
ESR-150H 810-1730 sixty three.7-98 nine.fifty three-twenty five.76 17.16-65 eighteen.five-75 752-1571
ESR-200H 810-1480 sixty three.seven-ninety eight twenty five.34-fifty six.ninety two forty two.34-120 fifty five-132 1426-1934
ESR-250H 990-1480 63.seven-ninety eight 58-ninety three.seven 83.2-205 90-220 2980-3468
ESR300H 990-1480 63.seven-98 86.nine-134.one 114.7-270 132-280 3476-3998
ERF-245 650-980 9.eight-98 forty seven.5-ninety seven.four sixteen-183 eighteen.five-two hundred 3630-3690
ERF-250 650-980 9.8-ninety eight 61.six-a hundred and twenty.four 19-227 22-250 4450-4500
ERF-290 650-980 9.8-78.4 ninety two.3-128 22-213 thirty-250 4890-4710
ERF-295 650-980 nine.8-78.four 97.three-152.5 23-227 thirty-250 4890-4880
ERF-297 650-980 nine.8-78.four 87.five-167.six 26-249 30-280 5330-5520
ERF-three hundred 650-980 9.eight-78.4 one zero one.five-188.seven 29-278 37-315 5330-5520
ERF-350 650-980 nine.eight-78.4 126-224.nine 34-249 45-280 5210-6470
ERG-three hundred 590-730 nine.8-ninety eight 128.three-196 38-362 forty five-400 9440-15710
ERG-350 590-730 nine.8-ninety eight 159.three-231.six forty three-420 fifty five-450 9700-1571
ERG-400 590-730 9.eight-83.three 203.1-290.9 fifty two-449 75-five hundred 10090-11390
ERG-445 590-730 nine.eight-73.five 229.7-327.8 58-477 75-560 10600-12230
ERG-450 590-730 nine.8-seventy three.five 262.four-366.two sixty four-496 seventy five-560 10600-12230
ERG-500 590-730 nine.eight-sixty three.7 327.four-452.4 seventy eight-529 ninety-560 12790-14620
ERF-240-V 650-980 -nine.eight- -49 38.1-seventy eight thirteen-76 eighteen.5-ninety 3420-3285
ERF-245-V 650-980 -9.8- -forty nine forty seven.five-97.4 sixteen-ninety five 22-110 3425-3360
ERF-250-V 650-980 -nine.8- -49 sixty three-one hundred twenty 19-117 22-132 3910-3830
ERF-290-V 650-980 -nine.eight- -49 72.6-a hundred and forty four 22-136 thirty-a hundred and sixty 4415-4270
ERF-295-V 650-980 -nine.8- -49 76.6-152 23-one hundred forty five thirty-one hundred sixty 4425-4485
ERF-297-V 650-980 -9.8- -forty nine eighty four.3-166.8 26-160 thirty-a hundred and eighty 5000-4980
ERF-300-V 650-980 -9.eight- -forty nine ninety seven-192 29-178 37-200 5000-4980
ERF-350-V 650-980 -9.eight- -forty nine 116-225 34-209 forty five-250 5400-5700
ERG-300V 590-730 -9.eight- -49 133-193 38-184 forty five-220 7800-9100
ERG-350V 590-730 -nine.eight- -49 163-231 43-216 fifty five-250 9500-9470
ERG-400V 590-730 -9.8- -forty nine 199-290 52-269 seventy five-315 9900-10130
ERG-445V 590-730 -nine.8- -forty nine 224.8-326.9 fifty eight-303 75-355 9900-10130
ERG-450V 590-730 -9.8- -49 255-365 64-335 seventy five-400 11230-11300
ERG-500V 590-730 -nine.eight- -49 314-452 seventy eight-412 132-450 13630-13850
ERF-245W 650-980 -13.three- -53.3 fifty three.5-101 21.5-102 thirty-110 3630-3360
ERF-250W 650-980 -13.3- -fifty three.3 sixty nine-127 26.five-127 30-160 3985-4115
ERF-290W 650-980 -thirteen.3- -53.three 82.6-one hundred fifty 30.5-149 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 -13.3- -fifty three.3 ninety five-174 36-174 forty five-two hundred 5230-5130
ERF-300W 650-980 -thirteen.three- -fifty three.three 109-195 forty-193 fifty five-220 5230-5130
ERF-350W 650-980 -thirteen.three- -fifty three.3 129-230 fifty-230 seventy five-250 5840-5670
ERG-300W 590-730 -13.3- -fifty three.three 142-197 fifty two-201 seventy five-220 9100-9000
ERF-350W 590-730 -thirteen.3- -fifty three.3 168-234.4 59-235.5 75-280 9500-9600
ERG-400W 590-730 -thirteen.three- -fifty three.three 220-276.six seventy one-292 ninety-315 9900-10130
ERG-445W 590-730 -thirteen.3- -53.three 244-294.six eighty two-331 ninety-400 11230-11300
ERG450W 590-730 -13.three- -fifty three.three 275-368.5 91-366 one hundred ten-400 11230-11300
650-980 ninety eight-196 64.8-112 a hundred thirty five-355 160-four hundred 8700-8600
650-980 98-196 eighty.eight-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
(three hundred,400)
590-740 ninety eight-176.four 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.three–80 seventy two-121 75.6-121 90-160 6100-6470
650-980 -fifty three.3–80 93.8-154 99.5-186 a hundred and ten-220 7000-6400
650-980 -53.3–80 116-189 a hundred and fifteen-220 132-250 7750-7760
EL81WD 580-980 nine.eight-58.eight fifty four.two-a hundred thirty eighteen-151 45-185 3595
EL82WDB 580-980 nine.eight-58.eight 72.8-161 22-191 45-220 3860
EL83WDA 580-980 nine.8-fifty eight.nine one zero one-213 28.five-202 forty five-220 4300
EL84WDA 580-980 9.eight-58.8 129-267 35.four-252 forty five-280 4720
EL93WDA 580-730 9.8-49 230-329 56.four-311 75-355 7765
EL94WDA 580-730 nine.eight-49 263-373 sixty four-353 seventy five-four hundred 8130
EL95WDA 490-580 nine.8-58.8 308-434 81.4-414 ninety-450 11500
EL96WDA 580 58.eight 381 497 560 11500
E397WN a thousand-1650 forty 5-nine      
E408WN 870-1650 forty 10-22      
E517WN 980-1580 forty 20-30      
E520WN 930-1550 forty 24-forty five      
E607WN 750-1250 40 forty five-seventy six      
E610WN 750-1250 40 75-130      

Spare areas and structure of our roots blower:

Package deal of our Roots Blower

Pack into iron situation, two layer,blower human body and motor in lower layer, inlet/out silencer etc in upper layer

Roots blower pack approach identical as iron circumstance, just alter to Fumigation Totally free Plywood Case

Our factory is a expert company of Roots blowers which has in excess of 20 years’ experience in equipment
production. It is located in Xihu (West Lake) Dis. East CZPT Park, fifty kilometers to the east of ZheCZPT provincial
cash— HangCZPT. Our organization also has hassle-free traffic transportation, as it is fifteen kilometers absent from
Diaozhen City station of HangCZPT-HangCZPT expressway, and thirty kilometers away from East HangCZPT station of
ZheCZPT -ZheCZPT expressway.The major item of our firm is ESR -sort Roots Blower. The roots
vacuum pump is a new kind of large-performance roots blower, which is developed independently based mostly on the
domestic and international innovative technologies. A number of patented technologies have been adopted on Roots
Blower, and as a result we have produced substantial outcomes in energy conservation and noise reduction, and so forth.. So much, our
organization has invested more than 30,000,000 RMB to introduce this sort of superior skilled products as
horizontal machining heart, vertical machining heart, two-way CNC area planer, CNC lathe, CNC milling
machine, CNC planer, airplane grinder, cylindrical grinding equipment, and three coordinates testing equipment.
Aside from, we have taken different actions to standardize the method stream this sort of as operating and cooperating
with numerous scientific research units, colleges and universities at property and abroad. We also repeatedly try to
absorb and boost the domestic innovative production systems, so as to encourage the upgrading and
optimization of the product and make the solution top quality get to the advanced level at residence and abroad.
ESR -variety Roots Blower contains many collection these kinds of as 3-leaves Type, Two-leaves Kind and Centrifugal
Sort,which can be even more divided to hundreds of varieties. The products are widely used in sewage treatment method,
pneumatic conveying,vacuum packaging, aquaculture, meals processing, electrical power, petrochemical, cement,
mining and other industries. Our items have this kind of advantages as minimal sounds, strength saving, steady quality,
and extended provider daily life, and so forth.. With the sales outlets throughout the domestic cash towns, our products promote effectively all
in excess of the place, and have been exported to North The united states,Russia, Malaysia, Indonesia, Vietnam, South Africa
and some other nations. Obtaining obtained the ISO9001 CZPT High quality Method Certification, we have
established and improved the quality assurance of the goods planning, production, and set up.
From the approach of design, study and growth to the concluded merchandise, we have got the complete
process managed independently, thus offering the full foundation and dependability assure for the goods security
and toughness. Possessing a perfect sales network and after-product sales services, we offer our customers with higher-
quality and much more effective provider.All personnel of our firm sincerely welcome the broad masses of friends 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
(one) Check all fasteners and finding pins situations regardless of whether they are loosening.
(two) Often check out whether or not the leakage phenomenon of the body.
(3) Spend focus to lubrication, sum of grease and noises when operating,
decide whether it works under the necessary conditions.
(4) Lubricant & grease: The lubricant is for medium load industrial gear oil
(grade 220, kinematic viscosity of 198 ~ 242mm2 / s 40ºC, flash level ≥ 200ºC)
The grease is butter (synthetic lithium grease penetration 220-250, fall stage ≥
190ºC). Exchange the lubricant and grease after very first two hundred hrs managing, and change
once more after a moth running. Later on, exchange the lubricant and grease in accordance to the
atmosphere and lubricant (grease) good quality suggest a suitable replacement for a few
(5) Always examine the inlet air filter, clear or replace the filter in time.
(six) Blower overload often not instantly shown, so spend focus to
the consumption and exhaust strain, bearing temperature and the current enhance developments
of motor to determine regardless of whether the blower works usually
(seven) Prior to disassembling the blower, the assembling relation and dimensions
have to be recorded or measured, make marks on components to make certain the CZPT
requirements after assembling.
(eight) When freshly device or overhaul, the oil tank need to be cleaned just before use
and propose substitute all grease after eight several hours managing.

Common failure purpose and troubleshooting

No Failure Attainable causes Elimination approaches
one Friction
between the
(one) Impurities on the impeller,
ensuing in the hole is also little
(two) Equipment dress in, resulting in a
big backlash
(3) The equipment is not effectively set,
can not keep the impeller
(four) Bearing dress in ensuing in
clearance escalating.
(one) Eliminate dust and check out
regardless of whether there is hurt elements
(two) Adjust the equipment gap, exchange
the gears if the gear backlash is
higher than the regular thirty% to
(3)Re-assemble the gears, hold
the taper speak to region is to seventy five%
(four)Replace the bearing
2 Collision
impeller and
wall, the
impeller prime
and casing
(one) Installation gap is not appropriate
(two) running pressure is also
high, exceeding the specified
(3) Working temperature is as well large
(4) Casing or base deformation,
positioning enthusiast failure
(five) Bearing axial area is not very good
(one) Change the hole
(2) Determine causes of
overloading, reduced the force
to the specified worth
(3) Examine the installation
precision and reduce the pipe
(four) Check out and repair bearings,
and to make sure the clearance
3 Temperature
too large
(one) Oil in tank is also significantly, way too
thick or also dirty
(2) CZPT or silencer is blocked
(3)The pressure is higher than
the specified benefit
(4)Abnormal dress in of the
impeller, large hole
(5)Poor air flow, indoor
temperature is substantial, ensuing in
inlet air’s high temperature
(6) The rotating velocity is also minimal,result in the belt slipping.
(one)Decrease the oil degree or count on
(two)Remove of blocking objects
(three)Minimizing the pressure via
the blower
(4)Repair its clearance
(five)Open vents to reduce area
(six) Improve velocity to avoid the
belt slipping.
4 Inadequate
(one) The inlet filter is blocked
(2) Impeller use and the hole
raises too much
(three) Belt slipping
(four) Big imports pressure decline
(5) Pipeline ventilation leakage
(one) Clear the filter dust and
(2) Repair the hole
(three)Tighten the belt and improve
the quantity of belts
(four)Change the inlet stress to the
specified value
(five) Verify and restore the pipeline
five Oil leaking or
oil leaking
into the enclosure
(1)Substantial tank placement result in
leakage from the discharge port
(two) Seal put on, resulting in shaft oil spills
(three) The force is greater than
the specified benefit

(1)Decrease the oil stage
(2)Substitute the seals
(3)Very clear the air vents, 2mm diameter faucet is fastened in the
middle chamber, open the faucet
below the wall
6 Irregular
vibration and
(1)Bearing clearance exceeds the
specified worth or bearing wear
(2) The equipment backlash is way too
big, not in a limited mounted
(3) The international objects and dust
triggered by the impeller and the
impeller, the impeller and the
housing collision
(four) the impeller shaft
deformation caused the collision
brought on by overload,
(five) Friction amongst the impeller
and the inlet housing caused by
(six) Unbalance of the impeller
triggered by fouling or international
human body
(seven) Anchor bolts or other
fasteners are loosened
(1)Substitute bearings or bearing
(two)Reassemble equipment and ensure
(3)Cleansing blower, examine the
situation is broken
(four)Examine the back again pressure, check
the wheel and alter hole
(five)Examine the filter and back
pressure, boost the hole
between the impeller inlet and the
(six)Thoroughly clean the impeller and the
casing, to make certain that the impeller
clearance operate
(seven) Tighten the anchor bolts and
leveling the foundation.
seven Motor
(one)In contrast with the essential
pressure, the stress difference
is big that the back again stress or
the inlet strain is higher
(2) When compared with the
equipment requirements, blower
movement is as well huge, so its force
(3)Inlet filter is blocked, or outlet
pipe is obstructed or blocked
(four) Collusion or friction (caught)
rotating areas
(5) The oil level is too higher
(six) Slender V-belt is overheat,
vibration is as well huge, or pulley
is way too little
(one) Decrease the force to the
specified price
(two) Exhaust the excessive gasoline into
the atmosphere or lessen the
blower pace
(3) Remove the obstructions
(4)Quickly shut down, check out
the cause
(5) Modify the oil to the appropriate
(six) Verify the belt rigidity, and
replaced it with large diameter

Our Support

one. Pre sell service                                                                              two. Right after promote service                                          
a. recommend the suited model                                             c. on the web technical assistance,                                                                                   
b. factory tour                                                                              d. whole lifestyle CZPT and techinical assistance


12 months gurantee for our roots blowers

Water Cooling High Efficiency Roots Vacuum Pump