Elt-50 High Efficiency Low energy Root Blower

Elt-50 High Efficiency Low energy Root Blower

We make all types of roots blower, centrifugal blower, Our Main merchandise are as underneath:

Kind Diameter Rate of movement Force
ESR-MJ(Intensive Type) Φ50~Φ300mm .five~140m³/min 9.8KPa~ninety eight.8Kpa
ESR(Common Sort) Φ50~Φ350mm .5~140m³/min 9.8KPa~78.4Kpa
ESR-H(Substantial-pressure Sort) Φ50~Φ350mm .seven~160m³/min fifty eight.8KPa~ninety eight.8Kpa
ESR-V(Vacuum Pump) Φ50~Φ350mm .five~160m³/min nine.8KPa~fifty three.3Kpa
EL Collection Φ200~Φ600mm 20.three~750m³/min nine.8KPa~58.8Kpa
Multistage Centrifugal Blower
or C-Series
Φ250~Φ500mm fifty~500m³/min nine.8KPa~98Kpa
ERR-ERG Kind Φ250~Φ500mm 120~420m³/min 9.8KPa~98.8Kpa

The operating theory of the three-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 achieve the
function of blowing.

Function of our roots blower:
one. Massive adjustment of the air volume
2. Low Sound
three. High effectiveness
four. Lower vitality cosumption
five. Extended time lifestyle
6. Trustworthy running, straightforward routine maintenance,little footprint

The parameters of our roots blower:

Kind Ratary Pace
Stress Increase
Shaft Electrical power
Motor Unit Maximn
ESR-50 1100-2120 9.8-fifty eight.8 .65-2.58 .3-3.54 .seventy five-4 128-158
ESR-65 1100-2130 nine.8-58.8 .ninety four-3.sixty six .38-four.46 .75-five.5 one hundred fifty five-185
ESR-eighty 1140-1900 nine.8-58.eight 2.34-five.forty three 1.04-seven.forty two 2.two-11 a hundred and fifty five-277
ESR-100 1060-1980 nine.8-58.eight four.57-nine.05 one.35-12.fifteen three-fifteen 309-377
ESR-125 980-1850 9.eight-58.8 5.35-12.four 1.65-5.19 5.5-eighteen.5 408-451
ESR-125C 970-1830 9.eight-fifty eight.8 seven.5-17.fifty seven three.2-eighteen.5 4-22 408-451
ESR-one hundred fifty 810-1730 nine.8-fifty eight.8 10.37-27.fifteen three.eighty four-forty.82 7.five-forty five 688-848
ESR-a hundred seventy five 970-1520 nine.eight-fifty eight.eight 19.sixty five-36.sixty five 7.two-forty five.ninety five 11-55 980-1080
ESR-200B 740-1450 nine.eight-fifty eight.8 19.65-forty four.8 10.fifteen-60.forty four fifteen-seventy five 1272-1546
ESR-two hundred 810-1480 9.8-58.8 27.65-59.two eight.05-eighty,12 fifteen-ninety 1272-1546
ESR-250B 1100-1480 9.8-58.eight fifty four.77-77.55 19.ninety seven-90.97 30-one hundred ten 1490-2454
ESR-250 990-1480 9.8-58.eight sixty one.4-97.52 20.1-117.three 30-132 1490-2454
ESR-three hundred 990-1480 9.eight-fifty eight.eight 87.1-138.one 26.four-167.eight 37-185 3326-3446
ESR-350 730-1480 nine.8-fifty eight.8 seventy eight.forty one-177.31   fifty five-250  
ESR-50H 1230-2120 sixty three.seven-ninety eight .forty five-2.02 two.05-six.twelve 3-7.five a hundred and sixty–170
ESR-65H 1240-2130 sixty three.seven-98 .78-2.fifty three two.89-7.55 four-11 198-230
ESR-80H 1140-1900 63.7-ninety eight one.82-four.55 four.09-10.one five.5-15 316-326
ESR-100H 1060-1980 63.7-ninety eight 2.sixty five-eight.06 6.36-17.2 7.5-22 398-459
ESR-125H 980-1850 63.seven-98 four.64-eleven.23 eight.ninety two-24.2 11-30 544-630
ESR-150H 810-1730 sixty three.7-ninety eight 9.53-25.seventy six seventeen.sixteen-sixty five 18.five-seventy five 752-1571
ESR-200H 810-1480 sixty three.7-ninety eight 25.34-56.ninety two forty two.34-120 55-132 1426-1934
ESR-250H 990-1480 63.7-98 58-ninety three.7 eighty three.two-205 90-220 2980-3468
ESR300H 990-1480 sixty three.7-98 86.9-134.one 114.7-270 132-280 3476-3998
ERF-245 650-980 9.8-ninety eight forty seven.5-97.4 16-183 eighteen.5-two hundred 3630-3690
ERF-250 650-980 nine.eight-98 61.6-a hundred and twenty.4 19-227 22-250 4450-4500
ERF-290 650-980 9.eight-seventy eight.4 92.three-128 22-213 30-250 4890-4710
ERF-295 650-980 9.8-seventy eight.four ninety seven.three-152.5 23-227 30-250 4890-4880
ERF-297 650-980 nine.eight-seventy eight.four 87.five-167.6 26-249 30-280 5330-5520
ERF-three hundred 650-980 9.eight-seventy eight.4 a hundred and one.five-188.7 29-278 37-315 5330-5520
ERF-350 650-980 nine.8-78.4 126-224.9 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 nine.eight-98 159.three-231.six 43-420 55-450 9700-1571
ERG-four hundred 590-730 9.eight-83.3 203.1-290.nine fifty two-449 seventy five-five hundred 10090-11390
ERG-445 590-730 nine.eight-73.5 229.seven-327.eight 58-477 seventy five-560 10600-12230
ERG-450 590-730 nine.8-73.five 262.4-366.two 64-496 75-560 10600-12230
ERG-500 590-730 9.8-63.7 327.four-452.four 78-529 90-560 12790-14620
ERF-240-V 650-980 -9.8- -49 38.one-seventy eight 13-76 18.5-ninety 3420-3285
ERF-245-V 650-980 -9.8- -49 forty seven.five-ninety seven.4 sixteen-ninety five 22-a hundred and ten 3425-3360
ERF-250-V 650-980 -9.8- -forty nine 63-a hundred and twenty 19-117 22-132 3910-3830
ERF-290-V 650-980 -nine.eight- -forty nine seventy two.6-a hundred and forty four 22-136 thirty-a hundred and sixty 4415-4270
ERF-295-V 650-980 -9.8- -49 seventy six.six-152 23-a hundred forty five 30-one hundred sixty 4425-4485
ERF-297-V 650-980 -9.8- -49 eighty four.3-166.eight 26-a hundred and sixty thirty-180 5000-4980
ERF-three hundred-V 650-980 -nine.eight- -49 ninety seven-192 29-178 37-two hundred 5000-4980
ERF-350-V 650-980 -9.8- -49 116-225 34-209 45-250 5400-5700
ERG-300V 590-730 -9.8- -49 133-193 38-184 forty five-220 7800-9100
ERG-350V 590-730 -9.8- -forty nine 163-231 forty three-216 55-250 9500-9470
ERG-400V 590-730 -9.eight- -49 199-290 52-269 seventy five-315 9900-10130
ERG-445V 590-730 -nine.eight- -forty nine 224.eight-326.nine 58-303 75-355 9900-10130
ERG-450V 590-730 -9.8- -49 255-365 sixty four-335 seventy five-four hundred 11230-11300
ERG-500V 590-730 -nine.8- -forty nine 314-452 78-412 132-450 13630-13850
ERF-245W 650-980 -13.3- -fifty three.three fifty three.five-101 21.five-102 thirty-a hundred and ten 3630-3360
ERF-250W 650-980 -13.3- -fifty three.3 sixty nine-127 26.five-127 thirty-one hundred sixty 3985-4115
ERF-290W 650-980 -thirteen.three- -fifty three.three 82.6-150 30.five-149 37-185 4340-4580
ERF-295W 650-980 -13.three- -fifty three.three 87-158 32-158 37-185 4440-4580
ERF-297W 650-980 -thirteen.3- -53.3 ninety five-174 36-174 45-200 5230-5130
ERF-300W 650-980 -13.three- -fifty three.three 109-195 forty-193 55-220 5230-5130
ERF-350W 650-980 -thirteen.three- -53.three 129-230 50-230 seventy five-250 5840-5670
ERG-300W 590-730 -thirteen.three- -fifty three.3 142-197 52-201 seventy five-220 9100-9000
ERF-350W 590-730 -13.three- -fifty three.three 168-234.four fifty nine-235.5 75-280 9500-9600
ERG-400W 590-730 -thirteen.three- -fifty three.3 220-276.6 71-292 90-315 9900-10130
ERG-445W 590-730 -13.three- -fifty three.3 244-294.six 82-331 90-400 11230-11300
ERG450W 590-730 -thirteen.3- -fifty three.3 275-368.5 91-366 one hundred ten-400 11230-11300
650-980 98-196 sixty four.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 ninety eight-137.2 124-207 241-473 280-560 10700-11110
590-740 98-176.four 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.three–eighty 72-121 seventy five.six-121 90-160 6100-6470
650-980 -fifty three.three–eighty 93.8-154 ninety nine.five-186 110-220 7000-6400
650-980 -53.three–80 116-189 115-220 132-250 7750-7760
EL81WD 580-980 9.eight-58.eight 54.two-a hundred thirty 18-151 45-185 3595
EL82WDB 580-980 nine.eight-fifty eight.8 seventy two.eight-161 22-191 45-220 3860
EL83WDA 580-980 9.8-58.nine 101-213 28.five-202 45-220 4300
EL84WDA 580-980 nine.eight-fifty eight.8 129-267 35.4-252 45-280 4720
EL93WDA 580-730 nine.eight-forty nine 230-329 fifty six.four-311 seventy five-355 7765
EL94WDA 580-730 9.8-forty nine 263-373 sixty four-353 seventy five-four hundred 8130
EL95WDA 490-580 9.eight-58.8 308-434 81.four-414 90-450 11500
EL96WDA 580 fifty eight.8 381 497 560 11500
E397WN one thousand-1650 40 five-9      
E408WN 870-1650 forty 10-22      
E517WN 980-1580 40 twenty-thirty      
E520WN 930-1550 forty 24-forty five      
E607WN 750-1250 forty forty five-76      
E610WN 750-1250 40 75-one hundred thirty      

Spare areas and construction of our roots blower:

Package deal of our Roots Blower

Pack into iron case, two layer,blower entire body and motor in reduced layer, inlet/out silencer and so forth in upper layer

Roots blower pack strategy very same as iron circumstance, just modify to Fumigation Cost-free Plywood Scenario

Our factory is a expert producer of Roots blowers which has in excess of twenty years’ experience in equipment
manufacturing. It is found in Xihu (West Lake) Dis. CZPT CZPT Park, 50 kilometers to the east of ZheJiang provincial
capital— HangZhou. Our firm also has handy visitors transportation, as it is 15 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 organization is ESR -kind Roots Blower. The roots
vacuum pump is a new kind of substantial-performance roots blower, which is created independently primarily based on the
domestic and overseas sophisticated technologies. Several patented technologies have been adopted on Roots
Blower, and thus we have made considerable effects in vitality conservation and noise reduction, etc.. So significantly, our
company has invested more than 30,000,000 RMB to introduce this kind of innovative skilled equipment as
horizontal machining middle, vertical machining heart, two-way CNC surface area planer, CNC lathe, CNC milling
device, CNC planer, airplane grinder, cylindrical grinding machine, and three coordinates testing device.
Besides, we have taken various actions to CZPTize the process movement such as operating and cooperating
with many scientific research units, colleges and universities at residence and abroad. We also continuously try to
take up and increase the domestic advanced manufacturing technologies, so as to encourage the upgrading and
optimization of the item and make the product good quality achieve the advanced amount at home and overseas.
ESR -variety Roots Blower involves several series these kinds of as A few-leaves Sort, Two-leaves Variety and Centrifugal
Sort,which can be additional divided to hundreds of kinds. The merchandise are widely utilised in sewage therapy,
pneumatic conveying,vacuum packaging, aquaculture, food processing, electrical electrical power, petrochemical, cement,
mining and other industries. Our merchandise have this kind of benefits as reduced noise, strength saving, secure top quality,
and lengthy services lifestyle, and so forth.. With the sales outlets throughout the domestic money towns, our merchandise offer well all
above the country, and have been exported to North CZPTica,Russia, Malaysia, Indonesia, Vietnam, South Africa
and some other nations. Obtaining got the ISO9001 CZPT CZPT Method Certification, we have
set up and enhanced the top quality assurance of the items developing, manufacturing, and set up.
From the method of layout, study and improvement to the concluded products, we have got the whole
approach controlled independently, hence offering the total basis and trustworthiness promise for the merchandise balance
and toughness. Getting a perfect product sales network and right after-product sales services, we give our customers with higher-
top quality and far more successful provider.All employees of our organization sincerely welcome the broad masses of buddies to
manual, and negotiate organization with us.

Our Roots Blower Workshop

         Doosn Horzitonal CZPT Centre

The Software of the Roots Blower

Upkeep and inspection
(1) Check out all fasteners and finding pins problems whether they are loosening.
(2) Usually verify regardless of whether the leakage phenomenon of the entire body.
(3) Pay out attention to lubrication, volume of grease and noises when operating,
determine no matter whether it operates below the needed situations.
(four) CZPT & 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 (artificial lithium grease penetration 220-250, drop stage ≥
190ºC). Substitute the lubricant and grease soon after first 200 several hours working, and change
once more right after a moth managing. Later, replace the lubricant and grease according to the
surroundings and lubricant (grease) top quality suggest a suitable replacement for a few
(five) Constantly check out the inlet air filter, clear or exchange the filter in time.
(6) Blower overload sometimes not immediately shown, so pay out interest to
the consumption and exhaust strain, bearing temperature and the existing improve traits
of motor to determine whether or not the blower works usually
(7) Prior to disassembling the blower, the assembling relation and proportions
have to be recorded or measured, make marks on elements to ensure the CZPT
needs after assembling.
(eight) When freshly machine or overhaul, the oil tank ought to be cleaned prior to use
and suggest exchange all grease after eight hours working.

Typical failure purpose and troubleshooting

No Failure Attainable causes Elimination methods
one Friction
among the
(1) Impurities on the impeller,
resulting in the hole is as well small
(two) Gear put on, ensuing in a
large backlash
(3) The gear is not effectively set,
can not maintain the impeller
(four) Bearing dress in ensuing in
clearance rising.
(1) Take away grime and check
regardless of whether there is damage parts
(2) Adjust the gear gap, exchange
the gears if the gear backlash is
greater than the average 30% to
(three)Re-assemble the gears, preserve
the taper make contact with region is to seventy five%
(4)Exchange the bearing
two Collision
in between
impeller and
wall, the
impeller prime
and casing
(1) Set up hole is not proper
(2) operating stress is also
substantial, exceeding the specified
(three) Running temperature is also higher
(four) Casing or foundation deformation,
positioning fan failure
(5) Bearing axial area is not very good
(1) Adjust the gap
(two) Determine leads to of
overloading, diminished the pressure
to the specified benefit
(three) Examine the set up
precision and minimize the pipe
(four) Examine and fix bearings,
and to guarantee the clearance
3 Temperature
way too substantial
(1) Oil in tank is as well considerably, too
thick or as well soiled
(two) CZPT or silencer is blocked
(three)The strain is greater than
the specified price
(four)Extreme use of the
impeller, big gap
(five)Inadequate air flow, indoor
temperature is substantial, ensuing in
inlet air’s large temperature
(6) The rotating pace is as well low,outcome in the belt slipping.
(one)Lessen the oil stage or count on
(2)Remove of blocking objects
(three)Reducing the stress by way of
the blower
(four)Mend its clearance
(five)Open vents to decrease room
(6) Increase pace to avoid the
belt slipping.
4 Insufficient
(one) The inlet filter is blocked
(2) Impeller put on and the hole
boosts as well much
(three) Belt slipping
(4) Big imports pressure decline
(5) CZPT ventilation leakage
(one) Clear the filter dust and
(two) Fix the hole
(three)Tighten the belt and improve
the quantity of belts
(four)Alter the inlet force to the
specified value
(five) Examine and restore the pipeline
five Oil leaking or
oil leaking
into the enclosure
(one)Substantial tank placement lead to
leakage from the discharge port
(two) Seal wear, ensuing in shaft oil spills
(3) The stress is higher than
the specified worth

(1)Lessen the oil level
(two)Replace the seals
(three)Very clear the air vents, 2mm diameter faucet is set in the
center chamber, open the faucet
below the wall
six Irregular
vibration and
(one)Bearing clearance exceeds the
specified worth or bearing dress in
(2) The gear backlash is as well
huge, not in a tight fastened
(3) The international objects and dust
caused by the impeller and the
impeller, the impeller and the
housing collision
(four) the impeller shaft
deformation triggered the collision
triggered by overload,
(five) Friction in between the impeller
and the inlet housing induced by
(six) Unbalance of the impeller
induced by fouling or overseas
(7) CZPT bolts or other
fasteners are loosened
(1)Change bearings or bearing
(2)Reassemble equipment and make sure
(three)Cleansing blower, examine the
scenario is destroyed
(four)Check out the back again pressure, examine
the wheel and alter gap
(5)Verify the filter and again
force, enhance the hole
amongst the impeller inlet and the
(six)Clean the impeller and the
casing, to make sure that the impeller
clearance work
(7) Tighten the anchor bolts and
leveling the base.
7 Motor
(one)In comparison with the needed
strain, the strain distinction
is huge that the again pressure or
the inlet force is higher
(2) In contrast with the
tools needs, blower
movement is too large, so its force
(three)Inlet filter is blocked, or outlet
pipe is obstructed or blocked
(four) Collusion or friction (stuck)
rotating components
(five) The oil level is too higher
(6) Narrow V-belt is overheat,
vibration is too big, or pulley
is as well tiny
(1) Lessen the force to the
specified worth
(two) Exhaust the excessive fuel into
the environment or minimize the
blower pace
(three) Take away the obstructions
(4)Instantly shut down, check
the explanation
(5) Adjust the oil to the appropriate
(six) Check the belt tension, and
replaced it with massive diameter

Our Provider

1. Pre promote service                                                                              two. Following promote service                                          
a. suggest the appropriate model                                             c. on the web technological support,                                                                                   
b. factory tour                                                                              d. complete life spare parts and techinical help


twelve months gurantee for our roots blowers

Elt-50 High Efficiency Low energy Root Blower