Water Coolding High Efficiency Roots Vacuum Pump for Pheumatic Transport

Water Coolding High Efficiency Roots Vacuum Pump for Pheumatic Transport

We make all sorts of roots blower, centrifugal blower, Our Principal items are as underneath:

Sort Diameter Price of movement Stress
ESR-MJ(Intense Kind) Φ50~Φ300mm .5~140m³/min 9.8KPa~98.8Kpa
ESR(Normal Sort) Φ50~Φ350mm .5~140m³/min 9.8KPa~78.4Kpa
ESR-H(Large-force Variety) Φ50~Φ350mm .7~160m³/min 58.8KPa~ninety eight.8Kpa
ESR-V(Vacuum Pump) Φ50~Φ350mm .five~160m³/min nine.8KPa~53.3Kpa
EL Series Φ200~Φ600mm twenty.three~750m³/min nine.8KPa~fifty eight.8Kpa
Multistage Centrifugal Blower
or C-Sequence
Φ250~Φ500mm 50~500m³/min nine.8KPa~98Kpa
ERR-ERG Kind Φ250~Φ500mm a hundred and twenty~420m³/min 9.8KPa~ninety eight.8Kpa

The working principle of the three-blade roots blower: two 3-lobed rotors are organized in the cavity, and the
suction port and the discharge port are opened on the two sides of the cavity. By way 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 achieve the
objective of blowing.

Function of our roots blower:
one. Large adjustment of the air volume
2. Reduced Sounds
three. High performance
four. Reduced power cosumption
5. Long time daily life
six. Reliable running, easy routine maintenance,tiny footprint

The parameters of our roots blower:

Type Ratary Pace
Strain Increase
Shaft Power
Motor Unit Maximn
ESR-fifty 1100-2120 nine.eight-58.8 .sixty five-two.58 .three-3.fifty four .seventy five-four 128-158
ESR-sixty five 1100-2130 nine.eight-fifty eight.eight .ninety four-3.sixty six .38-four.46 .75-five.five one hundred fifty five-185
ESR-80 1140-1900 9.eight-fifty eight.eight two.34-five.43 one.04-7.42 two.2-11 155-277
ESR-100 1060-1980 9.8-58.8 four.fifty seven-9.05 1.35-twelve.fifteen 3-15 309-377
ESR-a hundred twenty five 980-1850 9.8-58.8 5.35-12.four one.65-five.19 5.5-eighteen.five 408-451
ESR-125C 970-1830 9.eight-fifty eight.8 7.5-17.fifty seven 3.two-18.five 4-22 408-451
ESR-one hundred fifty 810-1730 nine.8-58.8 ten.37-27.15 3.eighty four-forty.eighty two seven.five-45 688-848
ESR-a hundred seventy five 970-1520 9.eight-58.8 19.sixty five-36.sixty five seven.2-45.95 11-55 980-1080
ESR-200B 740-1450 nine.eight-58.eight 19.sixty five-forty four.8 ten.15-60.forty four fifteen-seventy five 1272-1546
ESR-200 810-1480 nine.8-58.eight 27.sixty five-fifty nine.two eight.05-80,12 15-90 1272-1546
ESR-250B 1100-1480 9.eight-fifty eight.eight fifty four.seventy seven-seventy seven.fifty five 19.ninety seven-ninety.ninety seven 30-110 1490-2454
ESR-250 990-1480 nine.eight-58.8 61.4-97.52 twenty.1-117.3 30-132 1490-2454
ESR-300 990-1480 nine.eight-fifty eight.8 87.one-138.1 26.4-167.eight 37-185 3326-3446
ESR-350 730-1480 nine.eight-58.eight seventy eight.forty one-177.31   55-250  
ESR-50H 1230-2120 63.7-98 .forty five-2.02 two.05-6.twelve three-seven.5 160–a hundred and seventy
ESR-65H 1240-2130 63.7-98 .78-2.53 two.89-7.fifty five four-eleven 198-230
ESR-80H 1140-1900 sixty three.seven-98 1.82-4.55 4.09-10.one five.5-fifteen 316-326
ESR-100H 1060-1980 sixty three.7-98 2.sixty five-8.06 six.36-seventeen.two seven.five-22 398-459
ESR-125H 980-1850 63.seven-98 4.64-11.23 eight.ninety two-24.two 11-30 544-630
ESR-150H 810-1730 sixty three.seven-98 9.53-25.76 seventeen.16-sixty five eighteen.five-75 752-1571
ESR-200H 810-1480 sixty three.7-ninety eight 25.34-fifty six.ninety two forty two.34-120 55-132 1426-1934
ESR-250H 990-1480 63.7-ninety eight 58-93.7 83.2-205 ninety-220 2980-3468
ESR300H 990-1480 sixty three.7-98 86.9-134.one 114.7-270 132-280 3476-3998
ERF-245 650-980 nine.8-98 forty seven.5-97.4 16-183 18.5-two hundred 3630-3690
ERF-250 650-980 nine.8-98 sixty one.six-one hundred twenty.4 19-227 22-250 4450-4500
ERF-290 650-980 9.8-78.four ninety two.3-128 22-213 30-250 4890-4710
ERF-295 650-980 nine.8-seventy eight.four 97.three-152.5 23-227 thirty-250 4890-4880
ERF-297 650-980 nine.eight-78.4 87.five-167.six 26-249 30-280 5330-5520
ERF-three hundred 650-980 9.8-seventy eight.four one zero one.5-188.seven 29-278 37-315 5330-5520
ERF-350 650-980 nine.8-78.four 126-224.nine 34-249 forty five-280 5210-6470
ERG-300 590-730 nine.8-98 128.3-196 38-362 45-400 9440-15710
ERG-350 590-730 9.8-ninety eight 159.3-231.6 43-420 fifty five-450 9700-1571
ERG-four hundred 590-730 nine.8-eighty three.three 203.one-290.9 52-449 seventy five-five hundred 10090-11390
ERG-445 590-730 nine.eight-seventy three.5 229.seven-327.eight fifty eight-477 seventy five-560 10600-12230
ERG-450 590-730 nine.8-73.5 262.4-366.2 64-496 75-560 10600-12230
ERG-five hundred 590-730 nine.eight-63.7 327.four-452.4 seventy eight-529 ninety-560 12790-14620
ERF-240-V 650-980 -nine.eight- -49 38.one-78 thirteen-76 eighteen.five-ninety 3420-3285
ERF-245-V 650-980 -nine.8- -49 47.5-97.four 16-95 22-a hundred and ten 3425-3360
ERF-250-V 650-980 -nine.8- -49 63-120 19-117 22-132 3910-3830
ERF-290-V 650-980 -nine.eight- -49 seventy two.6-144 22-136 30-160 4415-4270
ERF-295-V 650-980 -nine.eight- -forty nine seventy six.six-152 23-one hundred forty five thirty-160 4425-4485
ERF-297-V 650-980 -nine.8- -49 eighty four.three-166.eight 26-a hundred and sixty thirty-a hundred and eighty 5000-4980
ERF-three hundred-V 650-980 -nine.8- -49 97-192 29-178 37-200 5000-4980
ERF-350-V 650-980 -nine.eight- -forty nine 116-225 34-209 45-250 5400-5700
ERG-300V 590-730 -nine.8- -49 133-193 38-184 forty five-220 7800-9100
ERG-350V 590-730 -9.eight- -49 163-231 43-216 fifty five-250 9500-9470
ERG-400V 590-730 -9.8- -49 199-290 fifty two-269 seventy five-315 9900-10130
ERG-445V 590-730 -9.8- -forty nine 224.8-326.9 58-303 75-355 9900-10130
ERG-450V 590-730 -9.eight- -49 255-365 sixty four-335 seventy five-400 11230-11300
ERG-500V 590-730 -nine.eight- -forty nine 314-452 seventy eight-412 132-450 13630-13850
ERF-245W 650-980 -13.3- -fifty three.3 53.five-a hundred and one 21.five-102 thirty-one hundred ten 3630-3360
ERF-250W 650-980 -thirteen.three- -53.three sixty nine-127 26.five-127 thirty-one hundred sixty 3985-4115
ERF-290W 650-980 -13.3- -fifty three.3 eighty two.6-one hundred fifty thirty.5-149 37-185 4340-4580
ERF-295W 650-980 -thirteen.3- -fifty three.three 87-158 32-158 37-185 4440-4580
ERF-297W 650-980 -thirteen.three- -fifty three.three 95-174 36-174 forty five-two hundred 5230-5130
ERF-300W 650-980 -thirteen.three- -53.three 109-195 forty-193 fifty five-220 5230-5130
ERF-350W 650-980 -thirteen.three- -53.three 129-230 fifty-230 seventy five-250 5840-5670
ERG-300W 590-730 -13.3- -fifty three.3 142-197 fifty two-201 75-220 9100-9000
ERF-350W 590-730 -thirteen.three- -fifty three.three 168-234.4 59-235.five seventy five-280 9500-9600
ERG-400W 590-730 -13.3- -53.3 220-276.six seventy one-292 ninety-315 9900-10130
ERG-445W 590-730 -13.three- -53.three 244-294.6 82-331 90-four hundred 11230-11300
ERG450W 590-730 -thirteen.three- -53.3 275-368.5 91-366 a hundred and ten-400 11230-11300
650-980 ninety eight-196 64.8-112 135-355 a hundred and sixty-four hundred 8700-8600
650-980 ninety eight-196 80.8-139 167-439 185-500 9200-9100
ETRF-three hundred
650-980 98-176.4 102-174 206-497 250-560 10320-10500
650-980 ninety eight-137.two 124-207 241-473 280-560 10700-11110
ETRG-four hundred
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 -fifty three.3–eighty 72-121 75.6-121 90-160 6100-6470
650-980 -fifty three.3–eighty 93.8-154 ninety nine.five-186 one hundred ten-220 7000-6400
650-980 -53.three–80 116-189 115-220 132-250 7750-7760
EL81WD 580-980 9.eight-58.eight fifty four.2-a hundred thirty 18-151 forty five-185 3595
EL82WDB 580-980 9.eight-fifty eight.8 seventy two.8-161 22-191 forty five-220 3860
EL83WDA 580-980 9.8-58.nine one hundred and one-213 28.5-202 45-220 4300
EL84WDA 580-980 nine.eight-58.eight 129-267 35.four-252 45-280 4720
EL93WDA 580-730 nine.8-forty nine 230-329 56.four-311 75-355 7765
EL94WDA 580-730 nine.eight-49 263-373 64-353 seventy five-four hundred 8130
EL95WDA 490-580 nine.8-58.eight 308-434 81.4-414 90-450 11500
EL96WDA 580 fifty eight.8 381 497 560 11500
E397WN one thousand-1650 forty five-nine      
E408WN 870-1650 40 ten-22      
E517WN 980-1580 forty twenty-thirty      
E520WN 930-1550 40 24-45      
E607WN 750-1250 forty 45-seventy six      
E610WN 750-1250 forty seventy five-130      

Spare areas and framework of our roots blower:

Bundle of our Roots Blower

Pack into iron case, two layer,blower body and motor in decrease layer, inlet/out silencer etc in upper layer

Roots blower pack approach identical as iron scenario, just change to Fumigation Free Plywood Circumstance

Our manufacturing facility is a skilled maker of Roots blowers which has in excess of 20 years’ experience in equipment
manufacturing. It is located in Xihu (West Lake) Dis. CZPT CZPT Park, fifty kilometers to the east of ZheJiang provincial
capital— HangZhou. Our organization also has practical visitors transportation, as it is fifteen kilometers absent from
Diaozhen City station of HangZhou-HangZhou expressway, and thirty kilometers away from CZPT HangZhou station of
ZheJiang -ZheJiang expressway.The major solution of our company is ESR -type Roots Blower. The roots
vacuum pump is a new sort of substantial-effectiveness roots blower, which is created independently based mostly on the
domestic and international superior technologies. Many patented technologies have been adopted on Roots
Blower, and hence we have made important results in power conservation and noise reduction, etc.. So significantly, our
organization has invested more than 30,000,000 RMB to introduce this sort of sophisticated specialist gear as
horizontal machining centre, vertical machining centre, two-way CNC surface area planer, CNC lathe, CNC milling
equipment, CNC planer, aircraft grinder, cylindrical grinding machine, and 3 coordinates tests equipment.
Apart from, we have taken various measures to CZPTize the process circulation such as working and cooperating
with numerous scientific research units, schools and universities at house and overseas. We also continually attempt to
take up and increase the domestic superior creation technologies, so as to encourage the upgrading and
optimization of the solution and make the item good quality attain the innovative stage at home and abroad.
ESR -sort Roots Blower includes many collection this sort of as Three-leaves Sort, Two-leaves Sort and Centrifugal
Kind,which can be more divided to hundreds of versions. The goods are broadly utilised in sewage therapy,
pneumatic conveying,vacuum packaging, aquaculture, meals processing, electric energy, petrochemical, cement,
mining and other industries. Our products have this sort of benefits as minimal noise, energy conserving, secure top quality,
and prolonged service existence, and so on.. With the product sales outlets throughout the domestic capital towns, our products offer effectively all
in excess of the country, and have been exported to North CZPTica,Russia, Malaysia, Indonesia, Vietnam, South Africa
and some other nations. Having acquired the ISO9001 CZPT CZPT Technique Certification, we have
established and enhanced the top quality assurance of the items planning, manufacturing, and set up.
From the procedure of style, research and improvement to the completed goods, we have got the entire
approach managed independently, therefore offering the total basis and dependability guarantee for the merchandise steadiness
and longevity. Obtaining a perfect product sales network and following-revenue services, we offer our clients with higher-
top quality and much more efficient support.All workers of our business sincerely welcome the wide masses of pals to
information, and negotiate business with us.

Our Roots Blower Workshop

         Doosn Horzitonal CZPT Center

The Software of the Roots Blower

Maintenance and inspection
(one) Check all fasteners and finding pins problems whether they are loosening.
(2) Constantly verify whether or not the leakage phenomenon of the human body.
(3) Pay interest to lubrication, quantity of grease and noises when running,
decide no matter whether it operates underneath the essential problems.
(4) CZPT & grease: The lubricant is for medium load industrial equipment oil
(grade 220, kinematic viscosity of 198 ~ 242mm2 / s 40ºC, flash stage ≥ 200ºC)
The grease is butter (synthetic lithium grease penetration 220-250, drop position ≥
190ºC). Replace the lubricant and grease after first 200 hours working, and change
yet again after a moth managing. Afterwards, substitute the lubricant and grease in accordance to the
atmosphere and lubricant (grease) quality suggest a ideal alternative for three
(5) Always check out the inlet air filter, cleanse or exchange the filter in time.
(6) Blower overload occasionally not right away displayed, so spend interest to
the consumption and exhaust pressure, bearing temperature and the recent boost traits
of motor to determine regardless of whether the blower functions generally
(seven) Just before disassembling the blower, the assembling relation and dimensions
must be recorded or measured, make marks on components to make sure the CZPT
demands soon after assembling.
(8) When recently device or overhaul, the oil tank need to be cleaned prior to use
and suggest replace all grease after eight several hours running.

Widespread failure cause and troubleshooting

No Failure Achievable causes Elimination techniques
1 Friction
in between the
(one) Impurities on the impeller,
resulting in the hole is too tiny
(2) Equipment wear, ensuing in a
big backlash
(3) The gear is not nicely fastened,
can not sustain the impeller
(four) Bearing use ensuing in
clearance rising.
(1) Eliminate filth and check out
whether there is harm parts
(2) Change the equipment gap, change
the gears if the gear backlash is
higher than the regular thirty% to
(3)Re-assemble the gears, keep
the taper contact spot is to 75%
(four)Replace the bearing
two Collision
impeller and
wall, the
impeller top
and casing
(one) Installation hole is not proper
(two) operating force is as well
substantial, exceeding the specified
(3) Running temperature is too higher
(4) Casing or base deformation,
positioning fan failure
(five) Bearing axial place is not good
(1) Alter the hole
(2) Determine brings about of
overloading, reduced the force
to the specified benefit
(3) Verify the set up
precision and minimize the pipe
(4) Check out and restore bearings,
and to make certain the clearance
3 Temperature
too large
(1) Oil in tank is way too considerably, way too
thick or too filthy
(2) CZPT or silencer is blocked
(3)The stress is higher than
the specified benefit
(four)Abnormal use of the
impeller, big hole
(5)Very poor ventilation, indoor
temperature is large, resulting in
inlet air’s higher temperature
(6) The rotating speed is as well low,consequence in the belt slipping.
(one)Minimize the oil amount or depend on
(2)Take away of blocking objects
(3)Decreasing the stress through
the blower
(4)Repair its clearance
(5)Open up vents to lessen space
(six) Enhance speed to stop the
belt slipping.
4 Insufficient
(one) The inlet filter is blocked
(2) Impeller wear and the hole
boosts too much
(three) Belt slipping
(four) Huge imports stress decline
(5) CZPT ventilation leakage
(1) Cleanse the filter dust and
(2) Restore the hole
(three)Tighten the belt and increase
the quantity of belts
(four)Adjust the inlet pressure to the
specified benefit
(five) Check and repair the pipeline
five Oil leaking or
oil leaking
into the enclosure
(1)Large tank place lead to
leakage from the discharge port
(2) Seal wear, ensuing in shaft oil spills
(three) The force is greater than
the specified value

(one)Reduce the oil level
(2)Replace the seals
(3)Very clear the air vents, 2mm diameter faucet is set in the
middle chamber, open the faucet
below the wall
6 Irregular
vibration and
(1)Bearing clearance exceeds the
specified value or bearing put on
(2) The gear backlash is too
big, not in a tight mounted
(3) The overseas objects and dust
caused by the impeller and the
impeller, the impeller and the
housing collision
(4) the impeller shaft
deformation triggered the collision
induced by overload,
(5) Friction between the impeller
and the inlet housing triggered by
(6) Unbalance of the impeller
caused by fouling or foreign
(seven) CZPT bolts or other
fasteners are loosened
(1)Substitute bearings or bearing
(two)Reassemble gear and guarantee
(three)Cleansing blower, check the
situation is ruined
(four)Check out the again force, check out
the wheel and change hole
(five)Examine the filter and back
stress, increase the gap
between the impeller inlet and the
(6)Clear the impeller and the
casing, to guarantee that the impeller
clearance work
(seven) Tighten the anchor bolts and
leveling the base.
seven Motor
(1)In comparison with the necessary
force, the stress difference
is large that the again pressure or
the inlet pressure is higher
(2) In contrast with the
equipment requirements, blower
circulation is also massive, so its force
will increase
(three)Inlet filter is blocked, or outlet
pipe is obstructed or blocked
(4) Collusion or friction (trapped)
rotating elements
(five) The oil level is as well substantial
(6) Slim V-belt is overheat,
vibration is way too huge, or pulley
is also modest
(one) Lessen the strain to the
specified benefit
(2) Exhaust the extra gas into
the environment or lessen the
blower pace
(3) Remove the obstructions
(four)Immediately shut down, examine
the cause
(5) Alter the oil to the right
(6) Check the belt rigidity, and
replaced it with massive diameter

Our Services

one. Pre promote service                                                                              two. Right after promote service                                          
a. advocate the suited model                                             c. on the web technological support,                                                                                   
b. factory tour                                                                              d. entire life spare areas and techinical assist


12 months gurantee for our roots blowers

Water Coolding High Efficiency Roots Vacuum Pump for Pheumatic Transport