New Design High Efficiency High Pressure Roots Blower

New Design High Efficiency High Pressure Roots Blower

We make all types of roots blower, centrifugal blower, Our Primary items are as underneath:

Variety Diameter Fee of circulation Force
ESR-MJ(Intensive Sort) Φ50~Φ300mm .5~140m³/min 9.8KPa~ninety eight.8Kpa
ESR(Normal Sort) Φ50~Φ350mm .5~140m³/min 9.8KPa~78.4Kpa
ESR-H(Higher-pressure Kind) Φ50~Φ350mm .seven~160m³/min fifty eight.8KPa~98.8Kpa
ESR-V(Vacuum Pump) Φ50~Φ350mm .5~160m³/min 9.8KPa~fifty three.3Kpa
EL Collection Φ200~Φ600mm twenty.three~750m³/min nine.8KPa~58.8Kpa
Multistage Centrifugal Blower
or C-Sequence
Φ250~Φ500mm 50~500m³/min nine.8KPa~98Kpa
ERR-ERG Type Φ250~Φ500mm a hundred and twenty~420m³/min 9.8KPa~ninety eight.8Kpa

The functioning theory of the a few-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. Through 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 gas in the chamber is pushed to obtain the
goal of blowing.

Feature of our roots blower:
one. Large adjustment of the air quantity
two. Reduced Sound
3. Higher effectiveness
4. Low vitality cosumption
five. Lengthy time life
6. Trustworthy operating, straightforward maintenance,tiny footprint

The parameters of our roots blower:

Type Ratary Velocity
Force Increase
Shaft Power
Motor Device Maximn
Electrical power
ESR-fifty 1100-2120 nine.eight-fifty eight.8 .sixty five-2.58 .3-three.fifty four .75-four 128-158
ESR-65 1100-2130 9.eight-fifty eight.eight .ninety four-3.66 .38-four.46 .seventy five-five.five 155-185
ESR-eighty 1140-1900 9.eight-fifty eight.eight 2.34-five.43 one.04-7.forty two 2.2-11 a hundred and fifty five-277
ESR-a hundred 1060-1980 nine.eight-fifty eight.eight four.fifty seven-9.05 one.35-12.fifteen 3-15 309-377
ESR-one hundred twenty five 980-1850 9.eight-58.8 5.35-twelve.four one.65-five.19 5.five-eighteen.five 408-451
ESR-125C 970-1830 9.eight-fifty eight.8 7.five-17.57 three.two-18.5 four-22 408-451
ESR-150 810-1730 nine.eight-58.8 10.37-27.15 three.eighty four-forty.eighty two 7.5-forty five 688-848
ESR-one hundred seventy five 970-1520 9.eight-fifty eight.eight 19.65-36.sixty five 7.2-forty five.95 11-fifty five 980-1080
ESR-200B 740-1450 nine.eight-58.eight 19.65-44.8 10.fifteen-sixty.44 15-seventy five 1272-1546
ESR-two hundred 810-1480 nine.eight-58.eight 27.65-fifty nine.2 8.05-eighty,12 15-ninety 1272-1546
ESR-250B 1100-1480 nine.8-58.8 54.77-77.fifty five 19.ninety seven-90.97 thirty-110 1490-2454
ESR-250 990-1480 nine.8-58.8 sixty one.four-ninety seven.fifty two twenty.1-117.three 30-132 1490-2454
ESR-300 990-1480 9.8-fifty eight.8 26.4-167.eight 37-185 3326-3446
ESR-350 730-1480 9.eight-58.8 seventy eight.41-177.31   fifty five-250  
ESR-50H 1230-2120 sixty eight .45-two.02 2.05-6.12 three-7.five one hundred sixty–170
ESR-65H 1240-2130 sixty three.7-98 .78-two.53 2.89-seven.fifty five four-eleven 198-230
ESR-80H 1140-1900 63.7-98 1.82-four.55 5.5-fifteen 316-326
ESR-100H 1060-1980 63.7-98 2.sixty five-8.06 six.36-seventeen.two seven.5-22 398-459
ESR-125H 980-1850 four.sixty four-eleven.23 eight.ninety two-24.2 eleven-thirty 544-630
ESR-150H 810-1730 sixty 9.53-twenty five.seventy six 17.16-65 18.five-seventy five 752-1571
ESR-200H 810-1480 sixty three.7-ninety eight twenty five.34-56.ninety two 42.34-a hundred and twenty fifty five-132 1426-1934
ESR-250H 990-1480 eighty three.2-205 90-220 2980-3468
ESR300H 990-1480 sixty three.7-98 86.nine-134.1 114.7-270 132-280 3476-3998
ERF-245 650-980 9.8-98 forty seven.five-ninety seven.4 16-183 eighteen.five-two hundred 3630-3690
ERF-250 650-980 9.eight-ninety eight 61.6-a hundred and twenty.four 19-227 22-250 4450-4500
ERF-290 650-980 9.eight-78.4 92.three-128 22-213 thirty-250 4890-4710
ERF-295 650-980 nine.8-seventy eight.four ninety seven.three-152.five 23-227 30-250 4890-4880
ERF-297 650-980 nine.8-78.4 87.5-167.6 26-249 30-280 5330-5520
ERF-three hundred 650-980 nine.eight-78.four one zero 29-278 37-315 5330-5520
ERF-350 650-980 9.8-seventy eight.four 126-224.nine 34-249 forty five-280 5210-6470
ERG-300 590-730 nine.8-98 128.three-196 38-362 45-400 9440-15710
ERG-350 590-730 nine.eight-98 159.3-231.6 forty three-420 55-450 9700-1571
ERG-four hundred 590-730 nine.eight-83.three fifty two-449 seventy five-five hundred 10090-11390
ERG-445 590-730 nine.8-seventy three.five 229.7-327.8 58-477 75-560 10600-12230
ERG-450 590-730 9.eight-73.5 262.four-366.2 sixty four-496 75-560 10600-12230
ERG-five hundred 590-730 327.4-452.4 seventy eight-529 ninety-560 12790-14620
ERF-240-V 650-980 -9.eight- -forty nine 13-seventy six eighteen.five-90 3420-3285
ERF-245-V 650-980 -nine.8- -forty nine 47.5-ninety seven.4 16-ninety five 22-a hundred and ten 3425-3360
ERF-250-V 650-980 -9.eight- -49 sixty three-120 19-117 22-132 3910-3830
ERF-290-V 650-980 -9.8- -49 seventy two.6-144 22-136 thirty-160 4415-4270
ERF-295-V 650-980 -9.eight- -49 seventy six.6-152 23-one hundred forty five thirty-160 4425-4485
ERF-297-V 650-980 -9.8- -49 84.3-166.eight 26-one hundred sixty thirty-one hundred eighty 5000-4980
ERF-three hundred-V 650-980 -9.eight- -forty nine ninety seven-192 29-178 37-two hundred 5000-4980
ERF-350-V 650-980 -9.eight- -forty nine 116-225 34-209 forty five-250 5400-5700
ERG-300V 590-730 -nine.eight- -49 133-193 38-184 forty five-220 7800-9100
ERG-350V 590-730 -nine.8- -49 163-231 forty three-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 -nine.8- -49 224.8-326.nine fifty eight-303 75-355 9900-10130
ERG-450V 590-730 -nine.eight- -forty nine 255-365 sixty four-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 -13.three- -fifty three.3 fifty three.five-101 21.5-102 30-110 3630-3360
ERF-250W 650-980 -thirteen.3- -fifty three.3 69-127 26.5-127 thirty-160 3985-4115
ERF-290W 650-980 -thirteen.three- -fifty three.3 82.6-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- -53.3 ninety five-174 36-174 45-two hundred 5230-5130
ERF-300W 650-980 -13.three- -53.3 109-195 forty-193 55-220 5230-5130
ERF-350W 650-980 -13.3- -fifty three.3 129-230 fifty-230 75-250 5840-5670
ERG-300W 590-730 -13.3- -53.three 142-197 52-201 75-220 9100-9000
ERF-350W 590-730 -13.three- -fifty three.three 168-234.4 fifty nine-235.5 75-280 9500-9600
ERG-400W 590-730 -thirteen.3- -53.three 220-276.six seventy one-292 ninety-315 9900-10130
ERG-445W 590-730 -13.three- -53.three 244-294.6 82-331 ninety-400 11230-11300
ERG450W 590-730 -13.three- -53.3 275-368.five ninety one-366 a hundred and ten-four hundred 11230-11300
650-980 ninety eight-196 64.eight-112 one hundred thirty five-355 a hundred and sixty-four hundred 8700-8600
650-980 ninety eight-196 80.eight-139 167-439 185-500 9200-9100
650-980 ninety eight-176.four 102-174 206-497 250-560 10320-10500
650-980 98-137.2 124-207 241-473 280-560 10700-11110
ETRG-four hundred
590-740 ninety eight-176.four 205-273 380-773 450-900 21350-24200
590-740 ninety eight-176.4 263-428 476-955 560-a thousand 24200-27600
650-980 -53.3–80 seventy two-121 seventy five.6-121 90-160 6100-6470
650-980 -fifty three.three–80 ninety three.eight-154 ninety nine.five-186 a hundred and ten-220 7000-6400
(2505/three hundred)
650-980 -fifty three.three–eighty 116-189 115-220 132-250 7750-7760
EL81WD 580-980 nine.8-fifty eight.eight 54.2-a hundred thirty eighteen-151 forty five-185 3595
EL82WDB 580-980 9.8-58.eight 72.8-161 22-191 45-220 3860
EL83WDA 580-980 9.8-58.nine 101-213 28.5-202 45-220 4300
EL84WDA 580-980 9.eight-fifty eight.8 129-267 35.4-252 forty five-280 4720
EL93WDA 580-730 9.8-forty nine 230-329 fifty six.4-311 75-355 7765
EL94WDA 580-730 nine.eight-49 263-373 sixty four-353 75-400 8130
EL95WDA 490-580 nine.8-fifty eight.8 308-434 81.four-414 90-450 11500
EL96WDA 580 58.eight 381 497 560 11500
E397WN 1000-1650 forty five-9      
E408WN 870-1650 forty ten-22      
E517WN 980-1580 forty twenty-30      
E520WN 930-1550 40 24-45      
E607WN 750-1250 40 45-seventy six      
E610WN 750-1250 40 seventy five-one hundred thirty      

Spare parts and construction of our roots blower:

Package deal of our Roots Blower

Pack into iron situation, two layer,blower physique and motor in reduce layer, inlet/out silencer and so forth in higher layer

Roots blower pack approach exact same as iron circumstance, just modify to Fumigation Totally free Plywood Scenario

Our factory is a specialist maker of Roots blowers which has above twenty years’ experience in machinery
producing. It is situated in Xihu (West Lake) Dis. CZPT CZPT Park, fifty kilometers to the east of ZheJiang provincial
funds— HangZhou. Our organization also has hassle-free traffic transportation, as it is 15 kilometers absent from
Diaozhen Town station of HangZhou-HangZhou expressway, and 30 kilometers away from CZPT HangZhou station of
ZheJiang -ZheJiang expressway.The top solution of our company is ESR -variety Roots Blower. The roots
vacuum pump is a new variety of higher-effectiveness roots blower, which is developed independently based mostly on the
domestic and foreign advanced systems. Several patented technologies have been adopted on Roots
Blower, and hence we have made significant outcomes in energy conservation and noise reduction, etc.. So much, our
business has invested more than 30,000,000 RMB to introduce these kinds of innovative professional equipment as
horizontal machining middle, vertical machining heart, two-way CNC floor planer, CNC lathe, CNC milling
equipment, CNC planer, aircraft grinder, cylindrical grinding equipment, and a few coordinates tests machine.
Apart from, we have taken various measures to CZPTize the process circulation such as operating and cooperating
with many scientific research units, schools and universities at house and overseas. We also continuously try to
soak up and boost the domestic innovative creation systems, so as to market the upgrading and
optimization of the item and make the merchandise quality reach the superior amount at house and overseas.
ESR -type Roots Blower contains several series such as A few-leaves Kind, Two-leaves Kind and Centrifugal
Sort,which can be additional divided to hundreds of versions. The items are extensively utilised in sewage therapy,
pneumatic conveying,vacuum packaging, aquaculture, foods processing, electric electrical power, petrochemical, cement,
mining and other industries. Our goods have such advantages as reduced noise, power conserving, steady good quality,
and prolonged provider lifestyle, etc.. With the product sales outlets throughout the domestic capital metropolitan areas, our goods sell effectively all
above the nation, and have been exported to North CZPTica,Russia, Malaysia, Indonesia, Vietnam, South Africa
and some other countries. Obtaining acquired the ISO9001 CZPT CZPT Program Certification, we have
set up and improved the quality assurance of the items designing, producing, and installation.
From the procedure of design and style, analysis and growth to the finished goods, we have received the total
method controlled independently, hence offering the full foundation and reliability guarantee for the goods balance
and sturdiness. Having a perfect product sales community and soon after-product sales service, we provide our buyers with higher-
high quality and more efficient support.All workers of our business sincerely welcome the broad masses of buddies to
information, and negotiate organization with us.

Our Roots Blower Workshop

         Doosn Horzitonal CZPT Heart

The Application of the Roots Blower

Maintenance and inspection
(one) Check all fasteners and locating pins problems whether they are loosening.
(two) Often examine whether the leakage phenomenon of the entire body.
(three) Pay out focus to lubrication, sum of grease and noises when working,
decide regardless of whether it works beneath the needed problems.
(four) CZPT & grease: The lubricant is for medium load industrial gear oil
(quality 220, kinematic viscosity of 198 ~ 242mm2 / s 40ºC, flash level ≥ 200ºC)
The grease is butter (synthetic lithium grease penetration 220-250, fall position ≥
190ºC). Exchange the lubricant and grease after first 200 several hours running, and replace
yet again after a moth operating. Afterwards, change the lubricant and grease in accordance to the
setting and lubricant (grease) good quality propose a suited substitute for a few
(5) Usually examine the inlet air filter, thoroughly clean or replace the filter in time.
(six) Blower overload sometimes not right away shown, so pay focus to
the ingestion and exhaust stress, bearing temperature and the existing increase trends
of motor to figure out whether the blower works typically
(7) Before disassembling the blower, the assembling relation and dimensions
should be recorded or calculated, make marks on elements to guarantee the CZPT
requirements right after assembling.
(eight) When recently equipment or overhaul, the oil tank need to be cleaned ahead of use
and propose substitute all grease right after eight hours running.

Common failure explanation and troubleshooting

No Failure Attainable motives Elimination methods
one Friction
among the
(1) Impurities on the impeller,
resulting in the gap is also little
(two) Gear use, ensuing in a
huge backlash
(3) The equipment is not nicely fixed,
can not sustain the impeller
(4) Bearing dress in resulting in
clearance escalating.
(1) Take away dust and verify
whether or not there is harm components
(2) Alter the equipment gap, change
the gears if the gear backlash is
better than the common 30% to
(three)Re-assemble the gears, maintain
the taper speak to region is to 75%
(four)Change the bearing
two Collision
impeller and
wall, the
impeller leading
and casing
(one) Installation hole is not appropriate
(2) functioning stress is as well
higher, exceeding the specified
(three) Functioning temperature is as well higher
(4) Casing or base deformation,
positioning admirer failure
(five) Bearing axial spot is not very good
(1) Adjust the gap
(two) Recognize causes of
overloading, reduced the force
to the specified worth
(3) Verify the installation
precision and lessen the pipe
(4) Verify and fix bearings,
and to guarantee the clearance
3 Temperature
as well substantial
(1) Oil in tank is as well considerably, way too
thick or also filthy
(2) CZPT or silencer is blocked
(3)The pressure is higher than
the specified value
(4)Excessive use of the
impeller, massive hole
(five)Very poor air flow, indoor
temperature is substantial, resulting in
inlet air’s large temperature
(six) The rotating velocity is way too lower,end result in the belt slipping.
(1)Reduce the oil amount or rely on
(2)Take away of blocking objects
(3)Decreasing the stress by means of
the blower
(4)Restore its clearance
(5)Open vents to lessen room
(six) Enhance speed to avoid the
belt slipping.
4 Inadequate
(one) The inlet filter is blocked
(2) Impeller wear and the gap
raises too significantly
(three) Belt slipping
(4) Massive imports stress loss
(five) CZPT air flow leakage
(1) Clean the filter dust and
(2) Repair the gap
(3)Tighten the belt and enhance
the number of belts
(four)Adjust the inlet strain to the
specified value
(five) Verify and mend the pipeline
5 Oil leaking or
oil leaking
into the enclosure
(one)High tank position trigger
leakage from the discharge port
(2) Seal use, resulting in shaft oil spills
(three) The force is larger than
the specified benefit

(1)Reduce the oil amount
(2)Change the seals
(3)Distinct the air vents, 2mm diameter faucet is mounted in the
middle chamber, open the faucet
under the wall
6 Irregular
vibration and
(one)Bearing clearance exceeds the
specified worth or bearing dress in
(two) The gear backlash is as well
massive, not in a limited mounted
(three) The international objects and dust
induced by the impeller and the
impeller, the impeller and the
housing collision
(4) the impeller shaft
deformation brought on the collision
brought on by overload,
(5) Friction between the impeller
and the inlet housing caused by
(6) Unbalance of the impeller
triggered by fouling or foreign
human body
(7) CZPT bolts or other
fasteners are loosened
(one)Substitute bearings or bearing
(2)Reassemble gear and make certain
(3)Cleansing blower, check the
situation is broken
(four)Verify the back pressure, check
the wheel and change hole
(five)Examine the filter and again
force, increase the gap
in between the impeller inlet and the
(six)Thoroughly clean the impeller and the
casing, to make sure that the impeller
clearance function
(7) Tighten the anchor bolts and
leveling the base.
seven Motor
(one)Compared with the essential
strain, the strain big difference
is large that the back stress or
the inlet force is substantial
(2) In contrast with the
gear specifications, blower
movement is too massive, so its pressure
will increase
(3)Inlet filter is blocked, or outlet
pipe is obstructed or blocked
(4) Collusion or friction (caught)
rotating parts
(five) The oil stage is way too large
(six) Slender V-belt is overheat,
vibration is way too huge, or pulley
is as well little
(one) Lessen the force to the
specified price
(two) Exhaust the surplus fuel into
the environment or minimize the
blower speed
(three) Remove the obstructions
(4)Right away shut down, verify
the purpose
(5) Alter the oil to the correct
(6) Check out the belt rigidity, and
changed it with big diameter

Our Support

one. Pre market service                                                                              two. Following offer service                                          
a. advise the ideal model                                             c. on the internet specialized support,                                                                                   
b. manufacturing facility tour                                                                              d. whole existence spare elements and techinical assist


twelve months gurantee for our roots blowers

New Design High Efficiency High Pressure Roots Blower