Intensive Type High Efficiency Roots Vacuum Pump for Pheumatic Transport

Intensive Type High Efficiency Roots Vacuum Pump for Pheumatic Transport

We make all sorts of roots blower, centrifugal blower, Our Main merchandise are as below:

Sort Diameter Fee of movement Strain
ESR-MJ(Intense Type) Φ50~Φ300mm .5~140m³/min nine.8KPa~98.8Kpa
ESR(Normal Sort) Φ50~Φ350mm .5~140m³/min 9.8KPa~78.4Kpa
ESR-H(Higher-stress Sort) Φ50~Φ350mm .7~160m³/min fifty eight.8KPa~ninety eight.8Kpa
ESR-V(Vacuum Pump) Φ50~Φ350mm .five~160m³/min nine.8KPa~fifty three.3Kpa
EL Sequence Φ200~Φ600mm 20.three~750m³/min nine.8KPa~fifty eight.8Kpa
Multistage Centrifugal Blower
or C-Series
Φ250~Φ500mm 50~500m³/min nine.8KPa~98Kpa
ERR-ERG Type Φ250~Φ500mm a hundred and twenty~420m³/min nine.8KPa~ninety eight.8Kpa

The operating basic principle of the 3-blade roots blower: two a few-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 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 gasoline in the chamber is pushed to achieve the
purpose of blowing.

Function of our roots blower:
one. Massive adjustment of the air quantity
2. Lower Sounds
3. Large performance
four. Lower vitality cosumption
5. Extended time life
6. Trustworthy running, easy servicing,small footprint

The parameters of our roots blower:

Kind Ratary Velocity
Strain Increase
Shaft Power
Motor Unit Maximn
ESR-fifty 1100-2120 9.8-fifty eight.8 .65-two.58 .3-three.54 .seventy five-4 128-158
ESR-sixty five 1100-2130 nine.eight-58.8 .94-three.sixty six .38-four.46 .seventy five-five.five 155-185
ESR-80 1140-1900 nine.eight-fifty eight.8 two.34-5.forty three 1.04-seven.42 2.2-11 a hundred and fifty five-277
ESR-a hundred 1060-1980 9.8-fifty eight.eight four.fifty seven-nine.05 one.35-12.fifteen three-15 309-377
ESR-a hundred twenty five 980-1850 9.8-58.8 5.35-12.4 1.65-5.19 five.5-eighteen.five 408-451
ESR-125C 970-1830 9.eight-fifty eight.eight seven.5-seventeen.fifty seven three.2-eighteen.5 4-22 408-451
ESR-150 810-1730 nine.8-58.8 10.37-27.fifteen 3.84-forty.eighty two 7.5-45 688-848
ESR-175 970-1520 9.eight-58.eight 19.sixty five-36.65 7.2-45.ninety five 11-55 980-1080
ESR-200B 740-1450 9.8-58.eight 19.sixty five-forty four.8 10.fifteen-sixty.forty four fifteen-75 1272-1546
ESR-200 810-1480 nine.eight-58.8 27.65-fifty nine.2 8.05-80,twelve fifteen-ninety 1272-1546
ESR-250B 1100-1480 nine.eight-fifty eight.eight 54.77-77.55 19.ninety seven-90.97 thirty-a hundred and ten 1490-2454
ESR-250 990-1480 nine.eight-58.8 61.four-ninety seven.fifty two 20.1-117.three 30-132 1490-2454
ESR-300 990-1480 9.eight-58.eight 87.1-138.1 26.four-167.eight 37-185 3326-3446
ESR-350 730-1480 nine.8-58.8 seventy eight.forty one-177.31   55-250  
ESR-50H 1230-2120 sixty three.7-98 .45-2.02 two.05-six.12 3-seven.5 one hundred sixty–one hundred seventy
ESR-65H 1240-2130 sixty three.7-98 .78-2.fifty three 2.89-7.fifty five 4-eleven 198-230
ESR-80H 1140-1900 sixty three.7-ninety eight one.eighty two-four.fifty five 4.09-10.1 5.5-15 316-326
ESR-100H 1060-1980 sixty two.sixty five-eight.06 six.36-17.two seven.5-22 398-459
ESR-125H 980-1850 4.64-11.23 eight.ninety two-24.2 eleven-30 544-630
ESR-150H 810-1730 nine.fifty three-25.76 17.16-sixty five 18.5-seventy five 752-1571
ESR-200H 810-1480 eight twenty five.34-fifty six.92 forty two.34-120 fifty five-132 1426-1934
ESR-250H 990-1480 63.7-ninety eight fifty 83.two-205 90-220 2980-3468
ESR300H 990-1480 sixty three.7-ninety eight 114.7-270 132-280 3476-3998
ERF-245 650-980 9.eight-ninety eight forty seven.5-97.four sixteen-183 eighteen.five-200 3630-3690
ERF-250 650-980 9.8-ninety eight sixty one.six-120.four 19-227 22-250 4450-4500
ERF-290 650-980 nine.eight-78.4 ninety two.3-128 22-213 30-250 4890-4710
ERF-295 650-980 9.eight-seventy eight.4 97.three-152.5 23-227 30-250 4890-4880
ERF-297 650-980 9.eight-seventy eight.4 87.five-167.six 26-249 30-280 5330-5520
ERF-three hundred 650-980 nine.eight-78.four one hundred and one.five-188.7 29-278 37-315 5330-5520
ERF-350 650-980 nine.8-78.four 126-224.9 34-249 45-280 5210-6470
ERG-three hundred 590-730 9.8-ninety eight 128.3-196 38-362 45-400 9440-15710
ERG-350 590-730 9.8-98 159.3-231.six 43-420 fifty five-450 9700-1571
ERG-400 590-730 9.eight-83.3 52-449 seventy five-five hundred 10090-11390
ERG-445 590-730 nine.eight-73.five 229.7-327.eight fifty eight-477 75-560 10600-12230
ERG-450 590-730 9.eight-seventy three.five 262.4-366.two sixty four-496 75-560 10600-12230
ERG-five hundred 590-730 nine.eight-sixty three.7 327.4-452.4 78-529 ninety-560 12790-14620
ERF-240-V 650-980 -9.8- -49 38.1-78 13-76 eighteen.five-90 3420-3285
ERF-245-V 650-980 -nine.8- -49 forty seven.five-97.four 16-95 22-110 3425-3360
ERF-250-V 650-980 -9.8- -forty nine 63-120 19-117 22-132 3910-3830
ERF-290-V 650-980 -9.8- -49 seventy two.6-a hundred and forty four 22-136 thirty-a hundred and sixty 4415-4270
ERF-295-V 650-980 -nine.eight- -forty nine 76.six-152 23-a hundred forty five 30-a hundred and sixty 4425-4485
ERF-297-V 650-980 -nine.eight- -49 eighty four.3-166.eight 26-160 30-one hundred eighty 5000-4980
ERF-300-V 650-980 -nine.eight- -forty nine 97-192 29-178 37-two hundred 5000-4980
ERF-350-V 650-980 -nine.8- -49 116-225 34-209 forty five-250 5400-5700
ERG-300V 590-730 -nine.8- -forty nine 133-193 38-184 forty five-220 7800-9100
ERG-350V 590-730 -nine.eight- -49 163-231 43-216 55-250 9500-9470
ERG-400V 590-730 -nine.8- -forty nine 199-290 fifty two-269 75-315 9900-10130
ERG-445V 590-730 -nine.eight- -49 224.8-326.9 fifty eight-303 75-355 9900-10130
ERG-450V 590-730 -nine.8- -49 255-365 sixty four-335 75-four hundred 11230-11300
ERG-500V 590-730 -9.eight- -49 314-452 78-412 132-450 13630-13850
ERF-245W 650-980 -thirteen.3- -fifty three.3 53.five-one zero one 21.5-102 30-110 3630-3360
ERF-250W 650-980 -thirteen.three- -53.three 69-127 26.5-127 30-160 3985-4115
ERF-290W 650-980 -13.3- -fifty three.three eighty two.6-150 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 -thirteen.3- -fifty three.3 95-174 36-174 45-200 5230-5130
ERF-300W 650-980 -thirteen.three- -53.three 109-195 40-193 55-220 5230-5130
ERF-350W 650-980 -13.three- -fifty three.3 129-230 fifty-230 seventy five-250 5840-5670
ERG-300W 590-730 -thirteen.3- -53.3 142-197 52-201 75-220 9100-9000
ERF-350W 590-730 -13.3- -53.3 168-234.4 fifty nine-235.five seventy five-280 9500-9600
ERG-400W 590-730 -13.3- -fifty three.3 220-276.six seventy one-292 90-315 9900-10130
ERG-445W 590-730 -thirteen.3- -fifty three.3 244-294.6 82-331 90-400 11230-11300
ERG450W 590-730 -13.3- -fifty three.three 275-368.five ninety one-366 a hundred and ten-four hundred 11230-11300
650-980 ninety eight-196 sixty four.eight-112 135-355 160-four hundred 8700-8600
650-980 98-196 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-137.2 124-207 241-473 280-560 10700-11110
ETRG-four hundred
(three hundred,400)
590-740 98-176.4 205-273 380-773 450-900 21350-24200
590-740 98-176.4 263-428 476-955 560-one thousand 24200-27600
650-980 -53.3–eighty seventy two-121 seventy five.6-121 90-one hundred sixty 6100-6470
650-980 -53.3–80 93.eight-154 ninety nine.5-186 a hundred and ten-220 7000-6400
(2505/three hundred)
650-980 -53.three–80 116-189 one hundred fifteen-220 132-250 7750-7760
EL81WD 580-980 9.8-58.eight fifty four.two-130 eighteen-151 45-185 3595
EL82WDB 580-980 9.8-58.8 seventy two.eight-161 22-191 forty five-220 3860
EL83WDA 580-980 9.eight-58.9 one hundred and one-213 28.five-202 forty five-220 4300
EL84WDA 580-980 nine.eight-fifty eight.8 129-267 35.4-252 45-280 4720
EL93WDA 580-730 nine.eight-49 230-329 56.4-311 75-355 7765
EL94WDA 580-730 9.8-forty nine 263-373 sixty four-353 seventy five-400 8130
EL95WDA 490-580 nine.8-fifty eight.8 308-434 eighty one.4-414 90-450 11500
EL96WDA 580 fifty eight.8 381 497 560 11500
E397WN 1000-1650 40 five-9      
E408WN 870-1650 40 ten-22      
E517WN 980-1580 forty 20-thirty      
E520WN 930-1550 40 24-forty five      
E607WN 750-1250 40 forty five-76      
E610WN 750-1250 forty 75-a hundred thirty      

Spare elements and composition of our roots blower:

Package of our Roots Blower

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

Roots blower pack method same as iron case, just change to Fumigation Free of charge Plywood Case

Our manufacturing facility is a skilled manufacturer of Roots blowers which has more than 20 years’ experience in equipment
producing. It is positioned in Xihu (West Lake) Dis. East CZPT Park, 50 kilometers to the east of ZheJiang provincial
capital— HangZhou. Our firm also has practical visitors transportation, as it is fifteen kilometers absent from
Diaozhen City station of HangZhou-HangZhou expressway, and 30 kilometers away from East HangZhou station of
ZheJiang -ZheJiang expressway.The top item of our business is ESR -kind Roots Blower. The roots
vacuum pump is a new sort of substantial-efficiency roots blower, which is developed independently dependent on the
domestic and overseas superior systems. Several patented technologies have been adopted on Roots
Blower, and as a result we have manufactured significant consequences in vitality conservation and noise reduction, etc.. So considerably, our
firm has invested a lot more than 30,000,000 RMB to introduce these kinds of advanced professional gear as
horizontal machining center, vertical machining centre, two-way CNC area planer, CNC lathe, CNC milling
equipment, CNC planer, airplane grinder, cylindrical grinding equipment, and 3 coordinates screening device.
In addition to, we have taken different actions to CZPTize the method flow these kinds of as functioning and cooperating
with a lot of scientific research units, schools and universities at house and abroad. We also constantly attempt to
soak up and increase the domestic sophisticated production technologies, so as to market the upgrading and
optimization of the product and make the solution top quality get to the advanced degree at property and overseas.
ESR -type Roots Blower involves numerous sequence this sort of as A few-leaves Type, Two-leaves Sort and Centrifugal
Kind,which can be even more divided to hundreds of varieties. The items are widely employed in sewage treatment,
pneumatic conveying,vacuum packaging, aquaculture, foodstuff processing, electrical electrical power, petrochemical, cement,
mining and other industries. Our items have this kind of positive aspects as minimal noise, strength preserving, steady good quality,
and extended provider daily life, and so forth.. With the income outlets throughout the domestic cash towns, our products promote properly all
over the place, and have been exported to North The us,Russia, Malaysia, Indonesia, Vietnam, South Africa
and some other nations around the world. Obtaining acquired the ISO9001 CZPT CZPT System Certification, we have
established and enhanced the top quality assurance of the products developing, production, and installation.
From the method of layout, analysis and growth to the completed items, we have acquired the entire
approach controlled independently, therefore supplying the entire basis and trustworthiness promise for the items stability
and durability. Getting a perfect product sales community and after-sales services, we give our buyers with higher-
high quality and much more efficient support.All personnel of our business sincerely welcome the broad masses of buddies to
guide, and negotiate business with us.

Our Roots Blower Workshop

         Doosn Horzitonal CZPT Middle

The Software of the Roots Blower

Routine maintenance and inspection
(one) Examine all fasteners and locating pins situations regardless of whether they are loosening.
(2) Constantly examine no matter whether the leakage phenomenon of the human body.
(three) Shell out focus to lubrication, amount of grease and noises when managing,
figure out no matter whether it performs below the necessary circumstances.
(four) CZPT & grease: The lubricant is for medium load industrial equipment oil
(quality 220, kinematic viscosity of 198 ~ 242mm2 / s 40ºC, flash level ≥ 200ºC)
The grease is butter (synthetic lithium grease penetration 220-250, fall point ≥
190ºC). Replace the lubricant and grease soon after first 200 hrs running, and replace
yet again after a moth running. Later on, change the lubricant and grease according to the
environment and lubricant (grease) top quality suggest a suitable replacement for a few
(5) Often check out the inlet air filter, clear or substitute the filter in time.
(6) Blower overload often not right away displayed, so pay attention to
the consumption and exhaust pressure, bearing temperature and the existing increase trends
of motor to figure out regardless of whether the blower works generally
(7) Ahead of disassembling the blower, the assembling relation and proportions
have to be recorded or measured, make marks on factors to make certain the CZPT
specifications right after assembling.
(8) When newly equipment or overhaul, the oil tank need to be cleaned just before use
and propose change all grease right after eight several hours running.

Common failure cause and troubleshooting

No Failure Attainable factors Elimination approaches
one Friction
amongst the
(1) Impurities on the impeller,
resulting in the hole is too tiny
(two) Gear use, ensuing in a
huge backlash
(3) The gear is not effectively fastened,
can not keep the impeller
(four) Bearing wear resulting in
clearance growing.
(1) Get rid of grime and examine
whether there is hurt elements
(two) Adjust the gear hole, replace
the gears if the equipment backlash is
better than the regular 30% to
(3)Re-assemble the gears, hold
the taper speak to region is to seventy five%
(four)Change the bearing
two Collision
impeller and
wall, the
impeller prime
and casing
(one) Installation gap is not right
(two) functioning pressure is as well
large, exceeding the specified
(3) Running temperature is way too substantial
(four) Casing or base deformation,
positioning supporter failure
(5) Bearing axial spot is not good
(1) Adjust the hole
(two) Determine brings about of
overloading, decreased the stress
to the specified value
(3) Verify the set up
accuracy and lessen the pipe
(four) Verify and restore bearings,
and to guarantee the clearance
three Temperature
as well large
(1) Oil in tank is also much, too
thick or also soiled
(2) CZPT or silencer is blocked
(three)The strain is greater than
the specified worth
(four)Excessive wear of the
impeller, big gap
(5)Poor air flow, indoor
temperature is large, resulting in
inlet air’s high temperature
(six) The rotating pace is way too lower,consequence in the belt slipping.
(one)Reduce the oil stage or depend on
(2)Remove of blocking objects
(three)Minimizing the pressure by way of
the blower
(4)Restore its clearance
(five)Open vents to minimize space
(six) Enhance speed to prevent the
belt slipping.
four Insufficient
(1) The inlet filter is blocked
(two) Impeller put on and the gap
boosts also much
(three) Belt slipping
(4) Large imports strain reduction
(5) CZPT ventilation leakage
(one) Clear the filter dust and
(2) Fix the hole
(3)Tighten the belt and increase
the quantity of belts
(four)Modify the inlet force to the
specified value
(five) Check out and mend the pipeline
five Oil leaking or
oil leaking
into the enclosure
(1)Higher tank situation trigger
leakage from the discharge port
(2) Seal wear, ensuing in shaft oil spills
(three) The pressure is greater than
the specified worth

(1)Lessen the oil stage
(2)Change the seals
(3)Obvious the air vents, 2mm diameter faucet is set in the
center chamber, open up the faucet
below the wall
6 Abnormal
vibration and
(one)Bearing clearance exceeds the
specified benefit or bearing put on
(2) The gear backlash is too
huge, not in a tight fastened
(3) The overseas objects and dust
triggered by the impeller and the
impeller, the impeller and the
housing collision
(four) the impeller shaft
deformation triggered the collision
caused by overload,
(5) Friction among the impeller
and the inlet housing caused by
(6) Unbalance of the impeller
caused by fouling or foreign
entire body
(seven) CZPT bolts or other
fasteners are loosened
(1)Replace bearings or bearing
(two)Reassemble equipment and ensure
(3)Cleansing blower, examine the
scenario is damaged
(4)Check the back again force, verify
the wheel and modify gap
(5)Examine the filter and back
pressure, boost the gap
in between the impeller inlet and the
(6)Clear the impeller and the
casing, to ensure that the impeller
clearance perform
(7) Tighten the anchor bolts and
leveling the foundation.
seven Motor
(one)In comparison with the necessary
pressure, the strain difference
is massive that the back again pressure or
the inlet strain is higher
(2) When compared with the
products specifications, blower
stream is also huge, so its stress
(three)Inlet filter is blocked, or outlet
pipe is obstructed or blocked
(4) Collusion or friction (stuck)
rotating components
(5) The oil degree is way too higher
(6) Slender V-belt is overheat,
vibration is as well large, or pulley
is way too small
(1) Lessen the pressure to the
specified price
(two) Exhaust the excessive gasoline into
the ambiance or lessen the
blower pace
(three) Eliminate the obstructions
(4)Instantly shut down, check out
the cause
(5) Modify the oil to the appropriate
(six) Check the belt pressure, and
changed it with large diameter

Our Support

one. Pre offer service                                                                              two. Soon after sell service                                          
a. suggest the suitable model                                             c. on-line technical assist,                                                                                   
b. manufacturing facility tour                                                                              d. total lifestyle spare areas and techinical assistance


twelve months gurantee for our roots blowers

Intensive Type High Efficiency Roots Vacuum Pump for Pheumatic Transport