Elt-200 High Efficiency Low Engergy Roots Vacuum Pump

Elt-200 High Efficiency Low Engergy Roots Vacuum Pump

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

Sort Diameter Rate of flow Strain
ESR-MJ(Intense Sort) Φ50~Φ300mm .5~140m³/min nine.8KPa~ninety eight.8Kpa
ESR(Normal Kind) Φ50~Φ350mm .five~140m³/min nine.8KPa~seventy eight.4Kpa
ESR-H(High-pressure Variety) Φ50~Φ350mm .seven~160m³/min fifty eight.8KPa~ninety eight.8Kpa
ESR-V(Vacuum Pump) Φ50~Φ350mm .five~160m³/min nine.8KPa~53.3Kpa
EL Sequence Φ200~Φ600mm 20.3~750m³/min 9.8KPa~fifty eight.8Kpa
Multistage Centrifugal Blower
or C-Sequence
Φ250~Φ500mm fifty~500m³/min 9.8KPa~98Kpa
ERR-ERG Kind Φ250~Φ500mm one hundred twenty~420m³/min nine.8KPa~ninety eight.8Kpa

The functioning basic principle of the 3-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. Through 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 gas in the chamber is pushed to obtain the
purpose of blowing.

Characteristic of our roots blower:
one. Huge adjustment of the air volume
two. Minimal Sound
3. High efficiency
4. Minimal vitality cosumption
5. Lengthy time life
6. Trustworthy running, easy routine maintenance,small footprint

The parameters of our roots blower:

Kind Ratary Velocity
Strain Rise
Shaft Power
Motor Unit Maximn
ESR-50 1100-2120 nine.eight-fifty eight.8 .sixty five-2.58 .3-three.fifty four .seventy five-four 128-158
ESR-65 1100-2130 nine.8-58.8 .ninety four-3.sixty six .38-4.46 .seventy five-5.five one hundred fifty five-185
ESR-80 1140-1900 nine.eight-fifty eight.eight two.34-five.43 one.04-seven.forty two two.two-eleven 155-277
ESR-one hundred 1060-1980 nine.eight-58.8 4.57-9.05 1.35-12.fifteen 3-fifteen 309-377
ESR-125 980-1850 9.eight-58.eight five.35-12.4 1.65-five.19 five.5-18.five 408-451
ESR-125C 970-1830 9.8-58.8 seven.5-seventeen.fifty seven 3.two-18.five 4-22 408-451
ESR-150 810-1730 9.8-58.8 ten.37-27.15 three.eighty four-forty.82 seven.five-45 688-848
ESR-one hundred seventy five 970-1520 nine.eight-58.8 19.65-36.sixty five seven.two-forty five.ninety five 11-fifty five 980-1080
ESR-200B 740-1450 nine.8-58.eight 19.65-forty four.eight ten.15-sixty.44 15-75 1272-1546
ESR-two hundred 810-1480 nine.8-58.8 27.sixty five-59.two eight.05-eighty,12 15-90 1272-1546
ESR-250B 1100-1480 9.eight-fifty eight.8 fifty four.seventy seven-77.55 19.97-ninety.97 thirty-a hundred and ten 1490-2454
ESR-250 990-1480 9.8-58.8 sixty one.four-ninety seven.fifty two 20.one-117.3 30-132 1490-2454
ESR-three hundred 990-1480 9.eight-fifty eight.eight 87.one-138.one 26.4-167.eight 37-185 3326-3446
ESR-350 730-1480 nine.8-58.8 78.41-177.31   fifty five-250  
ESR-50H 1230-2120 63.7-ninety eight .forty five-2.02 2.05-six.12 3-7.five one hundred sixty–a hundred and seventy
ESR-65H 1240-2130 sixty three.7-98 .seventy eight-2.53 2.89-seven.fifty five four-eleven 198-230
ESR-80H 1140-1900 sixty three.seven-ninety eight 1.eighty two-four.fifty five 4.09-ten.1 five.five-fifteen 316-326
ESR-100H 1060-1980 63.7-98 2.65-eight.06 six.36-17.2 7.five-22 398-459
ESR-125H 980-1850 63.7-98 four.sixty four-eleven.23 eight.ninety two-24.2 eleven-thirty 544-630
ESR-150H 810-1730 sixty three.seven-ninety eight 9.53-twenty five.seventy six seventeen.16-65 18.five-75 752-1571
ESR-200H 810-1480 sixty three.7-ninety eight 25.34-56.92 42.34-120 fifty five-132 1426-1934
ESR-250H 990-1480 sixty three.seven-98 fifty eight-93.seven 83.2-205 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 nine.8-98 forty seven.5-ninety seven.4 sixteen-183 18.five-200 3630-3690
ERF-250 650-980 9.eight-ninety eight 61.6-120.four 19-227 22-250 4450-4500
ERF-290 650-980 nine.eight-seventy eight.four 92.3-128 22-213 thirty-250 4890-4710
ERF-295 650-980 nine.8-78.4 ninety seven.three-152.5 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-300 650-980 9.8-seventy eight.4 one zero one.five-188.7 29-278 37-315 5330-5520
ERF-350 650-980 9.eight-78.four 126-224.nine 34-249 forty five-280 5210-6470
ERG-300 590-730 nine.eight-ninety eight 128.3-196 38-362 forty five-four hundred 9440-15710
ERG-350 590-730 9.8-ninety eight 159.3-231.6 43-420 55-450 9700-1571
ERG-four hundred 590-730 9.8-eighty three.three 203.one-290.nine fifty two-449 seventy five-five hundred 10090-11390
ERG-445 590-730 9.eight-seventy three.five 229.seven-327.eight 58-477 seventy five-560 10600-12230
ERG-450 590-730 nine.8-seventy three.five 262.four-366.two 64-496 75-560 10600-12230
ERG-500 590-730 9.8-63.seven 327.four-452.four 78-529 ninety-560 12790-14620
ERF-240-V 650-980 -nine.8- -49 38.1-seventy eight 13-76 18.five-90 3420-3285
ERF-245-V 650-980 -nine.eight- -forty nine forty seven.5-97.four sixteen-ninety five 22-one hundred ten 3425-3360
ERF-250-V 650-980 -nine.eight- -forty nine 63-a hundred and twenty 19-117 22-132 3910-3830
ERF-290-V 650-980 -nine.8- -49 72.six-144 22-136 30-one hundred sixty 4415-4270
ERF-295-V 650-980 -nine.eight- -forty nine 76.6-152 23-145 30-a hundred and sixty 4425-4485
ERF-297-V 650-980 -9.8- -49 84.3-166.eight 26-a hundred and sixty thirty-180 5000-4980
ERF-three hundred-V 650-980 -9.8- -49 ninety seven-192 29-178 37-200 5000-4980
ERF-350-V 650-980 -nine.eight- -forty nine 116-225 34-209 45-250 5400-5700
ERG-300V 590-730 -nine.8- -forty nine 133-193 38-184 45-220 7800-9100
ERG-350V 590-730 -nine.eight- -49 163-231 forty three-216 fifty five-250 9500-9470
ERG-400V 590-730 -nine.eight- -forty nine 199-290 52-269 75-315 9900-10130
ERG-445V 590-730 -9.8- -forty nine 224.eight-326.nine 58-303 75-355 9900-10130
ERG-450V 590-730 -9.eight- -49 255-365 sixty four-335 75-four hundred 11230-11300
ERG-500V 590-730 -9.8- -49 314-452 seventy eight-412 132-450 13630-13850
ERF-245W 650-980 -13.3- -53.three 53.5-a hundred and one 21.5-102 thirty-one hundred ten 3630-3360
ERF-250W 650-980 -13.3- -fifty three.three sixty nine-127 26.five-127 30-one hundred sixty 3985-4115
ERF-290W 650-980 -thirteen.3- -fifty three.three eighty two.6-a hundred and fifty 30.five-149 37-185 4340-4580
ERF-295W 650-980 -thirteen.3- -53.three 87-158 32-158 37-185 4440-4580
ERF-297W 650-980 -thirteen.3- -53.three 95-174 36-174 forty five-two hundred 5230-5130
ERF-300W 650-980 -thirteen.3- -53.three 109-195 40-193 55-220 5230-5130
ERF-350W 650-980 -13.3- -53.three 129-230 fifty-230 seventy five-250 5840-5670
ERG-300W 590-730 -thirteen.three- -53.3 142-197 52-201 75-220 9100-9000
ERF-350W 590-730 -13.three- -53.three 168-234.four 59-235.5 seventy five-280 9500-9600
ERG-400W 590-730 -thirteen.3- -fifty three.three 220-276.6 seventy one-292 90-315 9900-10130
ERG-445W 590-730 -13.3- -53.3 244-294.six 82-331 90-400 11230-11300
ERG450W 590-730 -13.three- -53.3 275-368.five 91-366 110-four hundred 11230-11300
650-980 ninety eight-196 64.eight-112 135-355 160-400 8700-8600
650-980 ninety eight-196 80.8-139 167-439 185-500 9200-9100
ETRF-three hundred
650-980 ninety eight-176.4 102-174 206-497 250-560 10320-10500
650-980 98-137.two 124-207 241-473 280-560 10700-11110
ETRG-four hundred
(three hundred,four hundred)
590-740 ninety eight-176.4 205-273 380-773 450-900 21350-24200
590-740 98-176.4 263-428 476-955 560-1000 24200-27600
650-980 -fifty three.three–eighty seventy two-121 75.six-121 90-160 6100-6470
650-980 -53.three–eighty 93.eight-154 ninety nine.5-186 110-220 7000-6400
(2505/three hundred)
650-980 -fifty three.3–80 116-189 a hundred and fifteen-220 132-250 7750-7760
EL81WD 580-980 nine.8-fifty eight.8 fifty four.2-a hundred thirty eighteen-151 45-185 3595
EL82WDB 580-980 9.8-58.eight 72.eight-161 22-191 45-220 3860
EL83WDA 580-980 9.eight-fifty eight.nine 101-213 28.five-202 45-220 4300
EL84WDA 580-980 nine.8-fifty eight.eight 129-267 35.four-252 forty five-280 4720
EL93WDA 580-730 nine.eight-forty nine 230-329 56.four-311 seventy five-355 7765
EL94WDA 580-730 9.8-49 263-373 sixty four-353 75-four hundred 8130
EL95WDA 490-580 9.eight-58.8 308-434 eighty one.four-414 90-450 11500
EL96WDA 580 fifty eight.eight 381 497 560 11500
E397WN 1000-1650 forty five-9      
E408WN 870-1650 forty ten-22      
E517WN 980-1580 forty twenty-thirty      
E520WN 930-1550 forty 24-forty five      
E607WN 750-1250 40 forty five-seventy six      
E610WN 750-1250 forty seventy five-130      

Spare areas and composition of our roots blower:

Package of our Roots Blower

Pack into iron scenario, two layer,blower body and motor in lower layer, inlet/out silencer etc in upper layer

Roots blower pack approach identical as iron case, just adjust to Fumigation Free Plywood Circumstance

Our manufacturing facility is a specialist producer of Roots blowers which has more than twenty years’ experience in machinery
manufacturing. It is found in Xihu (West Lake) Dis. East CZPT Park, fifty kilometers to the east of ZheJiang provincial
capital— HangZhou. Our company also has convenient visitors transportation, as it is fifteen kilometers away from
Diaozhen Town station of HangZhou-HangZhou expressway, and 30 kilometers absent from East HangZhou station of
ZheJiang -ZheJiang expressway.The top product of our business is ESR -variety Roots Blower. The roots
vacuum pump is a new sort of large-efficiency roots blower, which is created independently based on the
domestic and foreign innovative technologies. Many patented technologies have been adopted on Roots
Blower, and therefore we have manufactured important consequences in strength conservation and noise reduction, etc.. So significantly, our
organization has invested a lot more than 30,000,000 RMB to introduce such advanced skilled gear as
horizontal machining center, vertical machining centre, two-way CNC surface planer, CNC lathe, CNC milling
machine, CNC planer, airplane grinder, cylindrical grinding machine, and 3 coordinates screening machine.
Besides, we have taken different steps to CZPTize the process movement this kind of as functioning and cooperating
with numerous scientific research units, faculties and universities at house and overseas. We also continually consider to
soak up and boost the domestic advanced production technologies, so as to market the upgrading and
optimization of the merchandise and make the merchandise high quality get to the innovative amount at house and overseas.
ESR -kind Roots Blower involves a number of collection this kind of as A few-leaves Kind, Two-leaves Variety and Centrifugal
Variety,which can be additional divided to hundreds of kinds. The items are extensively used in sewage treatment method,
pneumatic conveying,vacuum packaging, aquaculture, meals processing, electric electricity, petrochemical, cement,
mining and other industries. Our goods have this sort of rewards as minimal noise, vitality conserving, stable quality,
and prolonged provider life, and so on.. With the revenue outlets throughout the domestic capital metropolitan areas, our merchandise offer properly all
more than the country, and have been exported to North America,Russia, Malaysia, Indonesia, Vietnam, South Africa
and some other international locations. Obtaining got the ISO9001 CZPT CZPT Program Certification, we have
recognized and improved the good quality assurance of the items developing, producing, and installation.
From the method of style, study and improvement to the completed merchandise, we have received the total
method controlled independently, as a result providing the full foundation and reliability promise for the products steadiness
and sturdiness. Having a perfect income network and soon after-product sales services, we provide our customers with higher-
quality and a lot more effective provider.All staff of our firm sincerely welcome the broad masses of friends to
information, and negotiate business with us.

Our Roots Blower Workshop

         Doosn Horzitonal CZPT Center

The Software of the Roots Blower

Upkeep and inspection
(one) Verify all fasteners and finding pins conditions no matter whether they are loosening.
(2) Always check out regardless of whether the leakage phenomenon of the human body.
(three) Pay focus to lubrication, sum of grease and noises when operating,
determine whether or not it performs under the needed conditions.
(four) 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 (artificial lithium grease penetration 220-250, drop point ≥
190ºC). Exchange the lubricant and grease soon after 1st 200 hours managing, and replace
again soon after a moth running. Afterwards, replace the lubricant and grease according to the
atmosphere and lubricant (grease) top quality suggest a suitable substitute for 3
(five) Often check out the inlet air filter, clean or exchange the filter in time.
(six) Blower overload often not right away displayed, so pay interest to
the intake and exhaust force, bearing temperature and the recent boost trends
of motor to determine whether or not the blower works normally
(7) Prior to disassembling the blower, the assembling relation and dimensions
should be recorded or measured, make marks on factors to make certain the CZPT
demands right after assembling.
(8) When freshly equipment or overhaul, the oil tank should be cleaned ahead of use
and suggest change all grease soon after eight hours running.

Frequent failure purpose and troubleshooting

No Failure Attainable factors Elimination approaches
one Friction
between the
(one) Impurities on the impeller,
resulting in the hole is way too little
(2) Gear dress in, resulting in a
large backlash
(three) The gear is not well set,
can not maintain the impeller
(four) Bearing use resulting in
clearance increasing.
(1) Get rid of filth and check out
whether there is damage areas
(two) Modify the equipment hole, exchange
the gears if the gear backlash is
higher than the typical 30% to
(three)Re-assemble the gears, maintain
the taper get in touch with location is to seventy five%
(4)Exchange the bearing
2 Collision
impeller and
wall, the
impeller prime
and casing
(1) Installation gap is not right
(two) running force is as well
large, exceeding the specified
(3) Running temperature is way too high
(4) Casing or foundation deformation,
positioning supporter failure
(five) Bearing axial spot is not excellent
(1) Change the gap
(2) Identify brings about of
overloading, reduced the strain
to the specified worth
(3) Verify the set up
precision and reduce the pipe
(4) Check out and mend bearings,
and to ensure the clearance
three Temperature
also high
(one) Oil in tank is too considerably, also
thick or also dirty
(2) CZPT or silencer is blocked
(3)The force is larger than
the specified value
(4)Excessive dress in of the
impeller, big gap
(5)Poor ventilation, indoor
temperature is substantial, ensuing in
inlet air’s higher temperature
(six) The rotating speed is way too minimal,consequence in the belt slipping.
(one)Reduce the oil stage or rely on
(2)Get rid of of blocking objects
(3)Lowering the stress via
the blower
(4)Repair its clearance
(5)Open vents to reduce place
(six) Enhance speed to avoid the
belt slipping.
4 Insufficient
(one) The inlet filter is blocked
(2) Impeller dress in and the gap
will increase too a lot
(3) Belt slipping
(four) Big imports force loss
(five) CZPT air flow leakage
(1) Clean the filter dust and
(2) Restore the hole
(three)Tighten the belt and enhance
the quantity of belts
(4)Adjust the inlet strain to the
specified price
(five) Examine and repair the pipeline
5 Oil leaking or
oil leaking
into the enclosure
(one)Large tank place lead to
leakage from the discharge port
(two) Seal put on, resulting in shaft oil spills
(3) The strain is higher than
the specified benefit

(one)Lessen the oil degree
(two)Replace the seals
(3)Very clear the air vents, 2mm diameter faucet is fixed in the
center chamber, open the faucet
under the wall
6 Abnormal
vibration and
(1)Bearing clearance exceeds the
specified worth or bearing dress in
(2) The equipment backlash is way too
huge, not in a restricted set
(three) The international objects and dust
induced by the impeller and the
impeller, the impeller and the
housing collision
(four) the impeller shaft
deformation brought on the collision
brought on by overload,
(5) Friction amongst the impeller
and the inlet housing caused by
(6) Unbalance of the impeller
triggered by fouling or overseas
(7) CZPT bolts or other
fasteners are loosened
(1)Replace bearings or bearing
(2)Reassemble equipment and make sure
(3)Cleaning blower, examine the
scenario is damaged
(4)Verify the back strain, check out
the wheel and alter gap
(five)Verify the filter and back again
force, boost the hole
among the impeller inlet and the
(six)Clear the impeller and the
casing, to make sure that the impeller
clearance perform
(7) Tighten the anchor bolts and
leveling the foundation.
seven Motor
(one)Compared with the required
pressure, the pressure difference
is big that the again pressure or
the inlet strain is large
(two) In contrast with the
equipment requirements, blower
flow is also big, so its strain
(three)Inlet filter is blocked, or outlet
pipe is obstructed or blocked
(four) Collusion or friction (trapped)
rotating areas
(five) The oil stage is way too high
(six) Slim V-belt is overheat,
vibration is also big, or pulley
is also little
(one) Decrease the pressure to the
specified value
(two) Exhaust the excess fuel into
the ambiance or lessen the
blower velocity
(three) Eliminate the obstructions
(4)Instantly shut down, check
the cause
(5) Modify the oil to the proper
(six) Check out the belt tension, and
replaced it with large diameter

Our Service

one. Pre offer service                                                                              two. Right after sell service                                          
a. advocate the suited model                                             c. on the web complex support,                                                                                   
b. manufacturing facility tour                                                                              d. entire lifestyle spare parts and techinical help


12 months gurantee for our roots blowers

Elt-200 High Efficiency Low Engergy Roots Vacuum Pump