Elt-80 High Efficiency Low Engergy Roots Vacuum Pump

Elt-80 High Efficiency Low Engergy Roots Vacuum Pump

We make all kinds of roots blower, centrifugal blower, Our Main products are as underneath:

Type Diameter Fee of movement Stress
ESR-MJ(Intense Variety) Φ50~Φ300mm .five~140m³/min 9.8KPa~ninety eight.8Kpa
ESR(Normal Kind) Φ50~Φ350mm .five~140m³/min nine.8KPa~seventy eight.4Kpa
ESR-H(Higher-stress Sort) Φ50~Φ350mm .seven~160m³/min 58.8KPa~ninety eight.8Kpa
ESR-V(Vacuum Pump) Φ50~Φ350mm .five~160m³/min 9.8KPa~fifty three.3Kpa
EL Series Φ200~Φ600mm twenty.three~750m³/min 9.8KPa~58.8Kpa
Multistage Centrifugal Blower
or C-Collection
Φ250~Φ500mm 50~500m³/min 9.8KPa~98Kpa
ERR-ERG Kind Φ250~Φ500mm a hundred and twenty~420m³/min nine.8KPa~98.8Kpa

The operating principle of the a few-blade roots blower: two 3-lobed rotors are organized in the cavity, and the
suction port and the discharge port are opened on both sides of the cavity. Via the action of a pair of
synchronous gears, the two rotors rotate in reverse instructions and Relying on the mutual engagement of the two
rotors, the suction port and the discharge port are isolated, and the fuel in the chamber is pushed to achieve the
goal of blowing.

Attribute of our roots blower:
one. Massive adjustment of the air quantity
2. Reduced Sound
3. Higher efficiency
4. Low power cosumption
five. Prolonged time lifestyle
six. Reliable managing, easy servicing,modest footprint

The parameters of our roots blower:

Type Ratary Velocity
Pressure Rise
Shaft Energy
Motor Unit Maximn
Excess weight(Kg)
ESR-fifty 1100-2120 nine.8-58.8 .sixty five-2.58 .three-three.54 .75-4 128-158
ESR-sixty five 1100-2130 nine.eight-fifty eight.8 .ninety four-three.66 .38-4.46 .seventy five-5.five 155-185
ESR-eighty 1140-1900 9.eight-58.eight 2.34-5.43 1.04-seven.forty two two.2-11 155-277
ESR-100 1060-1980 9.8-58.eight 4.57-nine.05 one.35-12.fifteen three-fifteen 309-377
ESR-one hundred twenty five 980-1850 nine.8-fifty eight.eight five.35-twelve.4 one.sixty five-5.19 five.5-18.5 408-451
ESR-125C 970-1830 9.eight-58.8 seven.five-17.57 three.two-18.five 4-22 408-451
ESR-a hundred and fifty 810-1730 9.eight-58.eight 10.37-27.15 3.84-forty.eighty two seven.five-45 688-848
ESR-one hundred seventy five 970-1520 nine.eight-58.eight 19.sixty five-36.65 7.2-forty five.ninety five eleven-55 980-1080
ESR-200B 740-1450 9.8-58.eight 19.65-forty four.8 ten.fifteen-60.44 15-75 1272-1546
ESR-two hundred 810-1480 9.eight-58.eight 27.sixty five-fifty nine.2 8.05-eighty,twelve fifteen-90 1272-1546
ESR-250B 1100-1480 nine.eight-58.8 54.seventy seven-77.fifty five 19.97-90.97 thirty-one hundred ten 1490-2454
ESR-250 990-1480 nine.eight-58.eight 61.4-ninety seven.52 twenty.one-117.3 thirty-132 1490-2454
ESR-300 990-1480 nine.8-fifty eight.eight 87.one-138.one 26.4-167.8 37-185 3326-3446
ESR-350 730-1480 nine.eight-fifty eight.8 seventy eight.forty one-177.31   fifty five-250  
ESR-50H 1230-2120 63.seven-98 .forty five-two.02 2.05-6.12 three-7.five one hundred sixty–170
ESR-65H 1240-2130 sixty three.seven-ninety eight .78-two.fifty three two.89-7.fifty five four-eleven 198-230
ESR-80H 1140-1900 63.seven-98 1.82-four.55 4.09-10.one 5.5-fifteen 316-326
ESR-100H 1060-1980 63.7-98 2.sixty five-eight.06 six.36-seventeen.2 7.5-22 398-459
ESR-125H 980-1850 sixty three.seven-98 four.64-11.23 8.ninety two-24.two eleven-thirty 544-630
ESR-150H 810-1730 63.seven-ninety eight 9.fifty three-25.76 17.sixteen-sixty five 18.5-75 752-1571
ESR-200H 810-1480 63.seven-ninety eight 25.34-56.92 42.34-one hundred twenty fifty five-132 1426-1934
ESR-250H 990-1480 63.7-ninety eight 58-93.seven eighty three.two-205 90-220 2980-3468
ESR300H 990-1480 sixty three.7-98 86.9-134.1 114.seven-270 132-280 3476-3998
ERF-245 650-980 9.eight-98 47.5-ninety seven.four sixteen-183 eighteen.5-two hundred 3630-3690
ERF-250 650-980 9.eight-98 sixty one.6-one hundred twenty.four 19-227 22-250 4450-4500
ERF-290 650-980 9.eight-78.four ninety two.three-128 22-213 thirty-250 4890-4710
ERF-295 650-980 nine.8-78.four 97.three-152.five 23-227 thirty-250 4890-4880
ERF-297 650-980 nine.eight-seventy eight.4 87.five-167.six 26-249 thirty-280 5330-5520
ERF-three hundred 650-980 9.8-78.four one hundred and one.five-188.7 29-278 37-315 5330-5520
ERF-350 650-980 nine.8-78.four 126-224.nine 34-249 forty five-280 5210-6470
ERG-300 590-730 nine.8-98 128.3-196 38-362 forty five-four hundred 9440-15710
ERG-350 590-730 nine.eight-ninety eight 159.3-231.six forty three-420 fifty five-450 9700-1571
ERG-400 590-730 nine.8-83.3 203.1-290.nine 52-449 75-500 10090-11390
ERG-445 590-730 nine.8-seventy three.five 229.seven-327.8 58-477 seventy five-560 10600-12230
ERG-450 590-730 9.8-73.five 262.four-366.two 64-496 seventy five-560 10600-12230
ERG-five hundred 590-730 nine.8-sixty three.seven 327.four-452.4 78-529 ninety-560 12790-14620
ERF-240-V 650-980 -9.eight- -forty nine 38.1-seventy eight 13-76 eighteen.five-90 3420-3285
ERF-245-V 650-980 -9.eight- -49 47.5-ninety seven.four 16-95 22-110 3425-3360
ERF-250-V 650-980 -9.8- -49 sixty three-120 19-117 22-132 3910-3830
ERF-290-V 650-980 -nine.8- -forty nine 72.6-a hundred and forty four 22-136 thirty-one hundred sixty 4415-4270
ERF-295-V 650-980 -nine.8- -forty nine 76.six-152 23-one hundred forty five thirty-a hundred and sixty 4425-4485
ERF-297-V 650-980 -nine.eight- -forty nine eighty four.three-166.8 26-one hundred sixty 30-one hundred eighty 5000-4980
ERF-300-V 650-980 -nine.eight- -49 97-192 29-178 37-two hundred 5000-4980
ERF-350-V 650-980 -9.eight- -forty nine 116-225 34-209 45-250 5400-5700
ERG-300V 590-730 -9.8- -forty nine 133-193 38-184 forty five-220 7800-9100
ERG-350V 590-730 -9.8- -forty nine 163-231 forty three-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- -49 224.eight-326.9 58-303 75-355 9900-10130
ERG-450V 590-730 -nine.8- -49 255-365 64-335 seventy five-400 11230-11300
ERG-500V 590-730 -9.eight- -forty nine 314-452 78-412 132-450 13630-13850
ERF-245W 650-980 -thirteen.3- -53.three 53.5-one zero one 21.5-102 thirty-one hundred ten 3630-3360
ERF-250W 650-980 -thirteen.3- -fifty three.3 sixty nine-127 26.five-127 thirty-160 3985-4115
ERF-290W 650-980 -thirteen.3- -53.three eighty two.6-150 thirty.five-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 -13.3- -53.3 ninety five-174 36-174 45-two hundred 5230-5130
ERF-300W 650-980 -13.three- -fifty three.three 109-195 40-193 55-220 5230-5130
ERF-350W 650-980 -thirteen.three- -53.3 129-230 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 -thirteen.three- -fifty three.3 168-234.four 59-235.five seventy five-280 9500-9600
ERG-400W 590-730 -thirteen.3- -53.three 220-276.6 71-292 90-315 9900-10130
ERG-445W 590-730 -13.three- -fifty three.3 244-294.6 82-331 ninety-four hundred 11230-11300
ERG450W 590-730 -13.three- -fifty three.three 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 one hundred sixty-400 8700-8600
650-980 ninety eight-196 80.8-139 167-439 185-500 9200-9100
ETRF-three hundred
650-980 98-176.four 102-174 206-497 250-560 10320-10500
650-980 ninety eight-137.two 124-207 241-473 280-560 10700-11110
(three hundred,four hundred)
590-740 ninety eight-176.four 205-273 380-773 450-900 21350-24200
590-740 ninety eight-176.four 263-428 476-955 560-a thousand 24200-27600
650-980 -fifty three.three–eighty 72-121 75.six-121 ninety-160 6100-6470
650-980 -53.3–80 ninety three.8-154 99.5-186 a hundred and ten-220 7000-6400
650-980 -fifty three.three–80 116-189 one hundred fifteen-220 132-250 7750-7760
EL81WD 580-980 nine.8-fifty eight.eight fifty four.two-one 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 nine.eight-58.nine a hundred and one-213 28.5-202 forty five-220 4300
EL84WDA 580-980 nine.eight-fifty eight.eight 129-267 35.four-252 45-280 4720
EL93WDA 580-730 nine.eight-forty nine 230-329 56.four-311 75-355 7765
EL94WDA 580-730 nine.8-forty nine 263-373 sixty four-353 seventy five-four hundred 8130
EL95WDA 490-580 nine.eight-58.eight 308-434 eighty one.4-414 90-450 11500
EL96WDA 580 fifty eight.eight 381 497 560 11500
E397WN a thousand-1650 forty 5-nine      
E408WN 870-1650 forty ten-22      
E517WN 980-1580 40 twenty-30      
E520WN 930-1550 40 24-45      
E607WN 750-1250 40 45-76      
E610WN 750-1250 40 75-one hundred thirty      

Spare areas and composition of our roots blower:

Package of our Roots Blower

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

Roots blower pack strategy very same as iron scenario, just change to Fumigation Free of charge Plywood Scenario

Our manufacturing unit is a skilled producer of Roots blowers which has over 20 years’ experience in machinery
manufacturing. It is situated in Xihu (West Lake) Dis. East CZPT Park, fifty kilometers to the east of ZheJiang provincial
money— HangZhou. Our company also has hassle-free traffic transportation, as it is 15 kilometers absent from
Diaozhen Town station of HangZhou-HangZhou expressway, and 30 kilometers absent from East HangZhou station of
ZheJiang -ZheJiang expressway.The major merchandise of our company is ESR -kind Roots Blower. The roots
vacuum pump is a new sort of substantial-performance roots blower, which is created independently dependent on the
domestic and international sophisticated systems. Numerous patented technologies have been adopted on Roots
Blower, and as a result we have produced significant results in energy conservation and noise reduction, and so forth.. So much, our
organization has invested much more than 30,000,000 RMB to introduce these kinds of sophisticated professional gear as
horizontal machining heart, vertical machining center, two-way CNC surface planer, CNC lathe, CNC milling
machine, CNC planer, aircraft grinder, cylindrical grinding device, and 3 coordinates testing equipment.
Besides, we have taken different actions to CZPTize the process stream these kinds of as functioning and cooperating
with a lot of scientific research units, faculties and universities at residence and overseas. We also constantly attempt to
absorb and enhance the domestic superior manufacturing technologies, so as to advertise the upgrading and
optimization of the solution and make the item good quality achieve the advanced amount at residence and overseas.
ESR -kind Roots Blower contains a number of sequence these kinds of as 3-leaves Sort, Two-leaves Kind and Centrifugal
Sort,which can be even more divided to hundreds of versions. The merchandise are extensively employed in sewage treatment,
pneumatic conveying,vacuum packaging, aquaculture, foodstuff processing, electric electrical power, petrochemical, cement,
mining and other industries. Our items have this sort of advantages as low sound, energy saving, steady top quality,
and lengthy provider lifestyle, and so on.. With the product sales outlets throughout the domestic money cities, our merchandise offer well all
above the place, and have been exported to North America,Russia, Malaysia, Indonesia, Vietnam, South Africa
and some other nations around the world. Obtaining received the ISO9001 CZPT CZPT System Certification, we have
set up and improved the quality assurance of the goods designing, manufacturing, and set up.
From the approach of design, investigation and improvement to the completed merchandise, we have obtained the entire
approach controlled independently, therefore providing the full foundation and trustworthiness assure for the items security
and durability. Obtaining a perfect revenue network and following-revenue provider, we give our buyers with increased-
good quality and more productive support.All employees of our company sincerely welcome the broad masses of close friends to
information, and negotiate company with us.

Our Roots Blower Workshop

         Doosn Horzitonal CZPT Heart

The Software of the Roots Blower

Maintenance and inspection
(one) Examine all fasteners and finding pins conditions no matter whether they are loosening.
(two) Constantly examine no matter whether the leakage phenomenon of the human body.
(three) Shell out attention to lubrication, sum of grease and noises when operating,
figure out no matter whether it works beneath the needed problems.
(4) CZPT & grease: The lubricant is for medium load industrial gear oil
(quality 220, kinematic viscosity of 198 ~ 242mm2 / s 40ºC, flash position ≥ 200ºC)
The grease is butter (synthetic lithium grease penetration 220-250, drop level ≥
190ºC). Substitute the lubricant and grease soon after initial 200 several hours working, and change
yet again after a moth managing. Afterwards, change the lubricant and grease according to the
setting and lubricant (grease) top quality propose a appropriate substitute for a few
(five) Always verify the inlet air filter, thoroughly clean or change the filter in time.
(six) Blower overload sometimes not quickly exhibited, so shell out consideration to
the consumption and exhaust strain, bearing temperature and the existing increase developments
of motor to figure out no matter whether the blower operates generally
(seven) Just before disassembling the blower, the assembling relation and proportions
need to be recorded or calculated, make marks on elements to make sure the CZPT
specifications right after assembling.
(8) When freshly machine or overhaul, the oil tank must be cleaned just before use
and propose replace all grease right after eight several hours operating.

Frequent failure cause and troubleshooting

No Failure Attainable reasons Elimination techniques
1 Friction
amongst the
(1) Impurities on the impeller,
resulting in the gap is as well little
(two) Equipment wear, ensuing in a
big backlash
(3) The equipment is not nicely set,
can not maintain the impeller
(4) Bearing use ensuing in
clearance increasing.
(1) Take away grime and examine
regardless of whether there is hurt parts
(two) Alter the equipment hole, change
the gears if the gear backlash is
increased than the regular 30% to
(3)Re-assemble the gears, keep
the taper make contact with area is to seventy five%
(4)Change the bearing
2 Collision
in between
impeller and
wall, the
impeller prime
and casing
(1) Set up hole is not correct
(two) running force is too
higher, exceeding the specified
(3) Functioning temperature is too substantial
(four) Casing or foundation deformation,
positioning supporter failure
(five) Bearing axial spot is not very good
(one) Adjust the hole
(2) Recognize triggers of
overloading, decreased the strain
to the specified value
(3) Examine the installation
accuracy and lessen the pipe
(4) Verify and repair bearings,
and to guarantee the clearance
three Temperature
as well high
(one) Oil in tank is way too a lot, also
thick or as well filthy
(two) CZPT or silencer is blocked
(3)The force is increased than
the specified worth
(4)Extreme wear of the
impeller, massive hole
(5)Poor ventilation, indoor
temperature is high, ensuing in
inlet air’s higher temperature
(six) The rotating velocity is as well reduced,end result in the belt slipping.
(one)Lessen the oil level or count on
(two)Eliminate of blocking objects
(3)Minimizing the pressure through
the blower
(four)Repair its clearance
(5)Open vents to decrease room
(six) Boost pace to stop the
belt slipping.
four Insufficient
(1) The inlet filter is blocked
(two) Impeller dress in and the hole
raises as well a lot
(three) Belt slipping
(4) Big imports pressure loss
(five) CZPT air flow leakage
(1) Thoroughly clean the filter dust and
(2) Fix the gap
(3)Tighten the belt and improve
the number of belts
(4)Alter the inlet stress to the
specified worth
(five) Check and fix the pipeline
5 Oil leaking or
oil leaking
into the enclosure
(one)Large tank place trigger
leakage from the discharge port
(two) Seal use, ensuing in shaft oil spills
(three) The pressure is greater than
the specified worth

(one)Lessen the oil level
(two)Substitute the seals
(3)Clear the air vents, 2mm diameter faucet is set in the
center chamber, open up the faucet
under the wall
six Abnormal
vibration and
(1)Bearing clearance exceeds the
specified value or bearing put on
(2) The gear backlash is as well
massive, not in a limited fixed
(3) 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
induced by overload,
(five) Friction among the impeller
and the inlet housing induced by
(6) Unbalance of the impeller
triggered by fouling or foreign
(seven) CZPT bolts or other
fasteners are loosened
(one)Substitute bearings or bearing
(2)Reassemble gear and ensure
(three)Cleaning blower, verify the
situation is destroyed
(four)Check out the back stress, verify
the wheel and change gap
(five)Check the filter and back
force, improve the gap
in between the impeller inlet and the
(six)Clean the impeller and the
casing, to ensure that the impeller
clearance operate
(7) Tighten the anchor bolts and
leveling the foundation.
7 Motor
(1)When compared with the required
pressure, the stress distinction
is massive that the back pressure or
the inlet stress is higher
(2) When compared with the
tools specifications, blower
stream is also large, so its stress
will increase
(three)Inlet filter is blocked, or outlet
pipe is obstructed or blocked
(4) Collusion or friction (trapped)
rotating elements
(five) The oil stage is as well substantial
(6) Narrow V-belt is overheat,
vibration is too large, or pulley
is too little
(1) Lessen the strain to the
specified worth
(two) Exhaust the excess gas into
the atmosphere or lessen the
blower speed
(3) Take away the obstructions
(four)Instantly shut down, check out
the explanation
(5) Modify the oil to the proper
(six) Check the belt tension, and
replaced it with large diameter

Our Support

1. Pre sell service                                                                              two. After offer service                                          
a. advise the suitable model                                             c. on-line specialized help,                                                                                   
b. manufacturing facility tour                                                                              d. entire life spare parts and techinical help


twelve months gurantee for our roots blowers

Elt-80 High Efficiency Low Engergy Roots Vacuum Pump