Elt-125s High Efficieny Low Energy Roots Blower

Elt-125s High Efficieny Low Energy Roots Blower

We make all varieties of roots blower, centrifugal blower, Our Primary items are as below:

Variety Diameter Rate of circulation Stress
ESR-MJ(Intensive Variety) Φ50~Φ300mm .five~140m³/min 9.8KPa~ninety eight.8Kpa
ESR(Normal Variety) Φ50~Φ350mm .five~140m³/min 9.8KPa~seventy eight.4Kpa
ESR-H(High-pressure Variety) Φ50~Φ350mm .7~160m³/min fifty eight.8KPa~ninety eight.8Kpa
ESR-V(Vacuum Pump) Φ50~Φ350mm .5~160m³/min nine.8KPa~53.3Kpa
EL Sequence Φ200~Φ600mm twenty.3~750m³/min 9.8KPa~fifty eight.8Kpa
Multistage Centrifugal Blower
or C-Collection
Φ250~Φ500mm fifty~500m³/min nine.8KPa~98Kpa
ERR-ERG Sort Φ250~Φ500mm 120~420m³/min 9.8KPa~98.8Kpa

The functioning theory of the a few-blade roots blower: two three-lobed rotors are organized in the cavity, and the
suction port and the discharge port are opened on equally sides of the cavity. Via the motion of a pair of
synchronous gears, the two rotors rotate in opposite directions 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 attain the
function of blowing.

Characteristic of our roots blower:
1. Big adjustment of the air quantity
2. Low Noise
three. Substantial effectiveness
four. Lower power cosumption
5. Lengthy time lifestyle
6. Reputable working, effortless maintenance,modest footprint

The parameters of our roots blower:

Type Ratary Pace
Stress Increase
Shaft Electricity
Motor Unit Maximn
Excess weight(Kg)
Electrical power
ESR-fifty 1100-2120 nine.eight-fifty eight.eight .sixty five-2.fifty eight .three-three.fifty four .75-four 128-158
ESR-sixty five 1100-2130 nine.eight-fifty eight.8 .ninety four-3.sixty six .38-4.forty six .75-five.five one hundred fifty five-185
ESR-eighty 1140-1900 9.8-58.8 two.34-5.forty three one.04-seven.42 2.2-eleven a hundred and fifty five-277
ESR-one hundred 1060-1980 nine.eight-58.eight four.57-9.05 one.35-12.15 3-15 309-377
ESR-125 980-1850 9.8-fifty eight.eight five.35-12.four 1.65-five.19 five.five-eighteen.5 408-451
ESR-125C 970-1830 9.8-58.eight seven.five-seventeen.fifty seven three.2-18.five four-22 408-451
ESR-a hundred and fifty 810-1730 9.eight-fifty eight.8 ten.37-27.fifteen three.eighty four-forty.eighty two 7.5-45 688-848
ESR-175 970-1520 nine.8-58.8 19.sixty five-36.sixty five seven.2-45.95 eleven-55 980-1080
ESR-200B 740-1450 9.eight-58.eight 19.65-forty four.eight 10.fifteen-sixty.44 fifteen-seventy five 1272-1546
ESR-two hundred 810-1480 nine.8-58.eight 27.sixty five-fifty nine.two eight.05-eighty,twelve 15-90 1272-1546
ESR-250B 1100-1480 nine.8-fifty eight.8 fifty four.seventy seven-seventy seven.55 19.ninety seven-90.97 30-one hundred ten 1490-2454
ESR-250 990-1480 9.8-fifty eight.eight 61.4-97.52 twenty.one-117.three 30-132 1490-2454
ESR-three hundred 990-1480 9.eight-fifty eight.eight 87.1-138.one 26.4-167.eight 37-185 3326-3446
ESR-350 730-1480 9.eight-fifty eight.8 78.forty one-177.31   fifty five-250  
ESR-50H 1230-2120 63.7-98 .45-two.02 2.05-six.12 3-seven.5 a hundred and sixty–one hundred seventy
ESR-65H 1240-2130 63.seven-98 .seventy eight-2.53 2.89-7.fifty five 4-eleven 198-230
ESR-80H 1140-1900 63.7-ninety eight 1.eighty two-four.fifty five four.09-10.one five.5-fifteen 316-326
ESR-100H 1060-1980 sixty three.7-98 2.sixty five-eight.06 6.36-seventeen.two seven.five-22 398-459
ESR-125H 980-1850 sixty three.seven-ninety eight four.sixty four-11.23 eight.ninety two-24.two eleven-30 544-630
ESR-150H 810-1730 sixty three.seven-ninety eight nine.53-25.seventy six 17.16-sixty five eighteen.5-75 752-1571
ESR-200H 810-1480 63.7-98 25.34-56.92 forty two.34-one hundred twenty 55-132 1426-1934
ESR-250H 990-1480 63.7-98 fifty eight-93.seven 83.two-205 ninety-220 2980-3468
ESR300H 990-1480 sixty three.7-ninety eight 86.nine-134.one 114.seven-270 132-280 3476-3998
ERF-245 650-980 9.8-ninety eight 47.5-97.4 16-183 18.five-two hundred 3630-3690
ERF-250 650-980 9.8-ninety eight 61.6-one hundred twenty.4 19-227 22-250 4450-4500
ERF-290 650-980 9.eight-seventy eight.four 92.three-128 22-213 thirty-250 4890-4710
ERF-295 650-980 9.eight-78.four ninety seven.three-152.5 23-227 30-250 4890-4880
ERF-297 650-980 nine.8-78.four 87.five-167.6 26-249 30-280 5330-5520
ERF-300 650-980 9.eight-seventy eight.four 101.five-188.seven 29-278 37-315 5330-5520
ERF-350 650-980 nine.8-78.4 126-224.nine 34-249 forty five-280 5210-6470
ERG-three hundred 590-730 9.eight-ninety eight 128.three-196 38-362 45-400 9440-15710
ERG-350 590-730 9.8-98 159.three-231.six forty three-420 fifty five-450 9700-1571
ERG-400 590-730 nine.eight-eighty three.3 203.1-290.nine fifty two-449 seventy five-500 10090-11390
ERG-445 590-730 9.8-73.5 229.seven-327.eight fifty eight-477 75-560 10600-12230
ERG-450 590-730 9.eight-73.five 262.four-366.2 sixty four-496 seventy five-560 10600-12230
ERG-500 590-730 nine.eight-63.seven 327.4-452.4 78-529 ninety-560 12790-14620
ERF-240-V 650-980 -9.8- -forty nine 38.1-78 thirteen-76 18.5-90 3420-3285
ERF-245-V 650-980 -9.eight- -forty nine 47.5-97.four 16-95 22-a hundred and ten 3425-3360
ERF-250-V 650-980 -9.eight- -forty nine 63-120 19-117 22-132 3910-3830
ERF-290-V 650-980 -9.eight- -forty nine seventy two.six-a hundred and forty four 22-136 thirty-a hundred and sixty 4415-4270
ERF-295-V 650-980 -nine.eight- -49 seventy six.6-152 23-a hundred forty five 30-one hundred sixty 4425-4485
ERF-297-V 650-980 -9.8- -forty nine eighty four.three-166.8 26-one hundred sixty thirty-180 5000-4980
ERF-three hundred-V 650-980 -9.eight- -49 97-192 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 -9.eight- -49 133-193 38-184 forty five-220 7800-9100
ERG-350V 590-730 -nine.eight- -49 163-231 forty three-216 55-250 9500-9470
ERG-400V 590-730 -nine.eight- -49 199-290 52-269 seventy five-315 9900-10130
ERG-445V 590-730 -9.8- -forty nine 224.8-326.nine fifty eight-303 seventy five-355 9900-10130
ERG-450V 590-730 -9.8- -forty nine 255-365 64-335 75-400 11230-11300
ERG-500V 590-730 -nine.8- -49 314-452 78-412 132-450 13630-13850
ERF-245W 650-980 -13.three- -53.three fifty three.5-one zero one 21.five-102 thirty-one hundred ten 3630-3360
ERF-250W 650-980 -13.3- -fifty three.3 sixty nine-127 26.five-127 thirty-160 3985-4115
ERF-290W 650-980 -13.3- -53.three eighty two.6-a hundred and fifty 30.5-149 37-185 4340-4580
ERF-295W 650-980 -13.three- -53.three 87-158 32-158 37-185 4440-4580
ERF-297W 650-980 -13.three- -53.three ninety five-174 36-174 45-two hundred 5230-5130
ERF-300W 650-980 -13.three- -fifty three.3 109-195 forty-193 55-220 5230-5130
ERF-350W 650-980 -13.3- -fifty three.3 129-230 fifty-230 seventy five-250 5840-5670
ERG-300W 590-730 -13.three- -fifty three.three 142-197 52-201 75-220 9100-9000
ERF-350W 590-730 -13.3- -fifty three.three 168-234.four 59-235.five 75-280 9500-9600
ERG-400W 590-730 -thirteen.3- -fifty three.3 220-276.6 seventy one-292 90-315 9900-10130
ERG-445W 590-730 -thirteen.three- -fifty three.three 244-294.six eighty two-331 90-four hundred 11230-11300
ERG450W 590-730 -thirteen.three- -53.three 275-368.5 ninety one-366 a hundred and ten-400 11230-11300
650-980 98-196 64.8-112 a hundred thirty five-355 a hundred and sixty-four hundred 8700-8600
650-980 98-196 80.8-139 167-439 185-five hundred 9200-9100
650-980 98-176.4 102-174 206-497 250-560 10320-10500
650-980 98-137.two 124-207 241-473 280-560 10700-11110
(three hundred,400)
590-740 98-176.4 205-273 380-773 450-900 21350-24200
590-740 ninety eight-176.4 263-428 476-955 560-a thousand 24200-27600
650-980 -fifty three.three–eighty seventy two-121 seventy five.6-121 90-one hundred sixty 6100-6470
650-980 -fifty three.3–eighty ninety three.8-154 ninety nine.five-186 a hundred and ten-220 7000-6400
650-980 -fifty three.three–eighty 116-189 115-220 132-250 7750-7760
EL81WD 580-980 9.eight-58.eight fifty four.2-130 18-151 45-185 3595
EL82WDB 580-980 9.8-fifty eight.eight seventy two.8-161 22-191 45-220 3860
EL83WDA 580-980 nine.eight-58.nine one zero one-213 28.five-202 forty five-220 4300
EL84WDA 580-980 nine.eight-58.eight 129-267 35.4-252 45-280 4720
EL93WDA 580-730 nine.8-49 230-329 56.4-311 seventy five-355 7765
EL94WDA 580-730 nine.eight-49 263-373 sixty four-353 seventy five-four hundred 8130
EL95WDA 490-580 9.eight-fifty eight.eight 308-434 eighty one.four-414 ninety-450 11500
EL96WDA 580 fifty eight.eight 381 497 560 11500
E397WN a thousand-1650 40 five-nine      
E408WN 870-1650 forty 10-22      
E517WN 980-1580 40 20-thirty      
E520WN 930-1550 40 24-forty five      
E607WN 750-1250 forty 45-seventy six      
E610WN 750-1250 40 75-a hundred thirty      

Spare areas and construction of our roots blower:

Bundle of our Roots Blower

Pack into iron situation, two layer,blower human body and motor in reduce layer, inlet/out silencer and so on in upper layer

Roots blower pack strategy identical as iron circumstance, just modify to Fumigation Cost-free Plywood Situation

Our manufacturing unit is a skilled company of Roots blowers which has in excess of 20 years’ experience in equipment
production. It is found in Xihu (West Lake) Dis. CZPT CZPT Park, 50 kilometers to the east of ZheJiang provincial
cash— HangZhou. Our business also has hassle-free visitors transportation, as it is fifteen kilometers absent from
Diaozhen City station of HangZhou-HangZhou expressway, and 30 kilometers absent from CZPT HangZhou station of
ZheJiang -ZheJiang expressway.The top item of our business is ESR -sort Roots Blower. The roots
vacuum pump is a new type of higher-performance roots blower, which is produced independently based mostly on the
domestic and international sophisticated systems. Many patented technologies have been adopted on Roots
Blower, and thus we have manufactured considerable consequences in vitality conservation and noise reduction, and many others.. So much, our
organization has invested a lot more than 30,000,000 RMB to introduce such advanced professional equipment as
horizontal machining middle, vertical machining middle, two-way CNC surface area planer, CNC lathe, CNC milling
machine, CNC planer, plane grinder, cylindrical grinding machine, and 3 coordinates screening equipment.
Apart from, we have taken various steps to CZPTize the process stream these kinds of as operating and cooperating
with many scientific research units, colleges and universities at property and abroad. We also continually consider to
take up and improve the domestic advanced creation technologies, so as to encourage the upgrading and
optimization of the solution and make the merchandise quality achieve the advanced amount at property and abroad.
ESR -kind Roots Blower includes several series these kinds of as A few-leaves Type, Two-leaves Kind and Centrifugal
Kind,which can be more divided to hundreds of versions. The merchandise are broadly utilised in sewage treatment,
pneumatic conveying,vacuum packaging, aquaculture, meals processing, electric energy, petrochemical, cement,
mining and other industries. Our products have this kind of advantages as minimal sound, vitality saving, stable top quality,
and prolonged service daily life, and so on.. With the revenue outlets throughout the domestic cash towns, our items offer effectively all
more than the place, and have been exported to North CZPTica,Russia, Malaysia, Indonesia, Vietnam, South Africa
and some other countries. Having obtained the ISO9001 CZPT CZPT Program Certification, we have
established and enhanced the quality assurance of the items planning, manufacturing, and installation.
From the procedure of style, investigation and development to the finished goods, we have received the total
procedure managed independently, thus supplying the complete basis and trustworthiness assure for the goods security
and durability. Possessing a perfect revenue community and soon after-sales service, we supply our buyers with greater-
quality and much more successful services.All staff of our organization sincerely welcome the broad masses of friends to
guide, and negotiate organization with us.

Our Roots Blower Workshop

         Doosn Horzitonal CZPT Center

The Application of the Roots Blower

Maintenance and inspection
(one) Check out all fasteners and locating pins problems no matter whether they are loosening.
(two) Constantly check out regardless of whether the leakage phenomenon of the physique.
(three) Pay out attention to lubrication, quantity of grease and noises when running,
establish whether it operates below the required circumstances.
(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 (artificial lithium grease penetration 220-250, fall level ≥
190ºC). Replace the lubricant and grease following initial two hundred hrs managing, and change
once again soon after a moth working. Later, exchange the lubricant and grease according to the
atmosphere and lubricant (grease) quality propose a suited alternative for three
(five) Constantly check the inlet air filter, thoroughly clean or replace the filter in time.
(six) Blower overload sometimes not instantly exhibited, so shell out focus to
the intake and exhaust pressure, bearing temperature and the recent increase trends
of motor to figure out regardless of whether the blower works normally
(7) Before disassembling the blower, the assembling relation and dimensions
have to be recorded or measured, make marks on factors to guarantee the CZPT
demands right after assembling.
(8) When recently equipment or overhaul, the oil tank should be cleaned ahead of use
and suggest exchange all grease after eight hours managing.

Common failure cause and troubleshooting

No Failure Achievable motives Elimination methods
one Friction
amongst the
(1) Impurities on the impeller,
ensuing in the hole is as well tiny
(2) Gear wear, resulting in a
large backlash
(3) The gear is not well fastened,
can not sustain the impeller
(four) Bearing use resulting in
clearance rising.
(1) Take away filth and verify
no matter whether there is injury areas
(2) Adjust the equipment hole, replace
the gears if the gear backlash is
increased than the regular thirty% to
(three)Re-assemble the gears, keep
the taper contact location is to seventy five%
(four)Exchange the bearing
2 Collision
in between
impeller and
wall, the
impeller best
and casing
(1) Set up hole is not correct
(two) working force is too
substantial, exceeding the specified
(three) Running temperature is as well high
(4) Casing or base deformation,
positioning enthusiast failure
(5) Bearing axial location is not good
(one) Adjust the hole
(two) Identify brings about of
overloading, lowered the pressure
to the specified price
(3) Check out the installation
precision and minimize the pipe
(four) Verify and mend bearings,
and to make certain the clearance
3 Temperature
too substantial
(1) Oil in tank is also a lot, also
thick or too soiled
(two) CZPT or silencer is blocked
(3)The force is larger than
the specified price
(four)Too much use of the
impeller, massive gap
(five)Poor air flow, indoor
temperature is substantial, resulting in
inlet air’s large temperature
(6) The rotating speed is way too low,consequence in the belt slipping.
(1)Minimize the oil level or rely on
(two)Get rid of of blocking objects
(3)Decreasing the force via
the blower
(four)Fix its clearance
(5)Open vents to decrease place
(6) Enhance velocity to stop the
belt slipping.
4 Inadequate
(1) The inlet filter is blocked
(2) Impeller wear and the hole
increases as well significantly
(3) Belt slipping
(4) Huge imports pressure decline
(five) CZPT ventilation leakage
(one) Cleanse the filter dust and
(two) Restore the hole
(3)Tighten the belt and boost
the number of belts
(4)Change the inlet pressure to the
specified price
(5) Check and fix the pipeline
5 Oil leaking or
oil leaking
into the enclosure
(one)High tank position lead to
leakage from the discharge port
(2) Seal put on, resulting in shaft oil spills
(3) The force is higher than
the specified benefit

(one)Reduce the oil amount
(two)Change the seals
(three)Distinct the air vents, 2mm diameter faucet is mounted in the
middle chamber, open up the faucet
under the wall
6 Irregular
vibration and
(1)Bearing clearance exceeds the
specified worth or bearing put on
(two) The equipment backlash is also
big, not in a tight fixed
(three) The international objects and dust
brought on by the impeller and the
impeller, the impeller and the
housing collision
(4) the impeller shaft
deformation induced the collision
caused by overload,
(5) Friction among the impeller
and the inlet housing caused by
(six) Unbalance of the impeller
brought on by fouling or foreign
human body
(seven) CZPT bolts or other
fasteners are loosened
(one)Replace bearings or bearing
(2)Reassemble equipment and guarantee
(three)Cleaning blower, examine the
situation is ruined
(4)Examine the back force, examine
the wheel and change gap
(five)Check out the filter and back
stress, improve the gap
in between the impeller inlet and the
(6)Cleanse the impeller and the
casing, to ensure that the impeller
clearance work
(7) Tighten the anchor bolts and
leveling the foundation.
seven Motor
(1)In comparison with the essential
stress, the stress difference
is big that the back pressure or
the inlet force is high
(two) In contrast with the
tools requirements, blower
stream is way too big, so its stress
(3)Inlet filter is blocked, or outlet
pipe is obstructed or blocked
(four) Collusion or friction (trapped)
rotating parts
(five) The oil degree is also high
(6) Slim V-belt is overheat,
vibration is also massive, or pulley
is too modest
(one) Lessen the strain to the
specified value
(two) Exhaust the excess gas into
the environment or lessen the
blower velocity
(3) Eliminate the obstructions
(4)Immediately shut down, verify
the cause
(5) Adjust the oil to the right
(six) Check out the belt tension, and
replaced it with big diameter

Our Support

one. Pre promote service                                                                              two. After promote service                                          
a. advise the appropriate model                                             c. on the web technical assistance,                                                                                   
b. manufacturing facility tour                                                                              d. complete daily life spare parts and techinical support


12 months gurantee for our roots blowers

Elt-125s High Efficieny Low Energy Roots Blower