Elt-80 High Efficiency Low Engergy Roots Vacuum Pump

Elt-80 High Efficiency Low Engergy Roots Vacuum Pump

We make all types of roots blower, centrifugal blower, Our Major goods are as underneath:

Sort Diameter Fee of movement Stress
ESR-MJ(Intensive Variety) Φ50~Φ300mm .five~140m³/min 9.8KPa~ninety eight.8Kpa
ESR(Normal Variety) Φ50~Φ350mm .five~140m³/min nine.8KPa~seventy eight.4Kpa
ESR-H(Substantial-strain Variety) Φ50~Φ350mm .7~160m³/min 58.8KPa~ninety eight.8Kpa
ESR-V(Vacuum Pump) Φ50~Φ350mm .5~160m³/min 9.8KPa~53.3Kpa
EL Collection Φ200~Φ600mm twenty.three~750m³/min nine.8KPa~fifty eight.8Kpa
Multistage Centrifugal Blower
or C-Sequence
Φ250~Φ500mm fifty~500m³/min nine.8KPa~98Kpa
ERR-ERG Variety Φ250~Φ500mm 120~420m³/min nine.8KPa~98.8Kpa

The functioning basic principle of the three-blade roots blower: two three-lobed rotors are organized in the cavity, and the
suction port and the discharge port are opened on each sides of the cavity. Through 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
function of blowing.

Function of our roots blower:
1. Massive adjustment of the air volume
2. Low Sounds
3. Higher performance
4. Low vitality cosumption
five. Lengthy time existence
six. Trustworthy operating, simple servicing,small footprint

The parameters of our roots blower:

Kind Ratary Velocity
Stress Rise
Shaft Power
Motor Unit Maximn
ESR-fifty 1100-2120 9.eight-58.eight .65-two.58 .three-3.fifty four .seventy five-4 128-158
ESR-65 1100-2130 9.eight-fifty eight.eight .94-3.sixty six .38-4.forty six .seventy five-five.five one hundred fifty five-185
ESR-eighty 1140-1900 nine.8-fifty eight.8 2.34-five.forty three one.04-seven.forty two 2.two-eleven a hundred and fifty five-277
ESR-a hundred 1060-1980 9.8-fifty eight.8 4.57-9.05 1.35-twelve.fifteen 3-fifteen 309-377
ESR-one hundred twenty five 980-1850 nine.eight-fifty eight.8 5.35-twelve.4 1.65-five.19 five.5-18.5 408-451
ESR-125C 970-1830 9.8-58.8 seven.five-seventeen.57 3.2-18.five four-22 408-451
ESR-150 810-1730 nine.8-fifty eight.8 ten.37-27.fifteen 3.84-forty.82 7.5-forty five 688-848
ESR-a hundred seventy five 970-1520 9.eight-58.eight 19.65-36.65 seven.two-forty five.ninety five 11-fifty five 980-1080
ESR-200B 740-1450 9.8-58.8 19.65-forty four.eight ten.15-60.forty four 15-75 1272-1546
ESR-two hundred 810-1480 nine.eight-fifty eight.eight 27.65-59.2 8.05-eighty,12 fifteen-ninety 1272-1546
ESR-250B 1100-1480 9.8-58.eight fifty four.seventy seven-seventy seven.fifty five 19.ninety seven-90.ninety seven 30-a hundred and ten 1490-2454
ESR-250 990-1480 9.eight-58.eight 61.4-97.fifty two 20.one-117.three thirty-132 1490-2454
ESR-300 990-1480 nine.eight-58.8 87.one-138.one 26.4-167.eight 37-185 3326-3446
ESR-350 730-1480 nine.eight-58.8 seventy eight.forty one-177.31   fifty five-250  
ESR-50H 1230-2120 sixty three.seven-98 .forty five-2.02 2.05-six.twelve 3-7.five 160–a hundred and seventy
ESR-65H 1240-2130 sixty three.7-ninety eight .78-2.fifty three two.89-seven.55 four-eleven 198-230
ESR-80H 1140-1900 63.7-98 one.eighty two-4.55 4.09-10.one five.five-15 316-326
ESR-100H 1060-1980 63.7-ninety eight 2.65-8.06 6.36-17.2 seven.five-22 398-459
ESR-125H 980-1850 sixty three.7-98 four.64-11.23 eight.92-24.two 11-thirty 544-630
ESR-150H 810-1730 sixty three.seven-98 9.fifty three-25.76 17.16-sixty five eighteen.five-75 752-1571
ESR-200H 810-1480 63.7-98 twenty five.34-fifty six.ninety two forty two.34-one hundred twenty fifty five-132 1426-1934
ESR-250H 990-1480 sixty three.seven-ninety eight fifty eight-ninety three.seven eighty three.two-205 ninety-220 2980-3468
ESR300H 990-1480 63.seven-98 86.nine-134.one 114.7-270 132-280 3476-3998
ERF-245 650-980 nine.eight-ninety eight 47.5-ninety seven.four sixteen-183 18.five-200 3630-3690
ERF-250 650-980 nine.8-98 sixty one.six-one hundred twenty.4 19-227 22-250 4450-4500
ERF-290 650-980 nine.eight-seventy eight.four ninety two.three-128 22-213 30-250 4890-4710
ERF-295 650-980 9.8-78.four ninety seven.three-152.5 23-227 thirty-250 4890-4880
ERF-297 650-980 nine.eight-78.four 87.5-167.6 26-249 thirty-280 5330-5520
ERF-three hundred 650-980 nine.eight-78.4 one zero one.5-188.seven 29-278 37-315 5330-5520
ERF-350 650-980 9.eight-78.four 126-224.9 34-249 45-280 5210-6470
ERG-300 590-730 9.8-ninety eight 128.3-196 38-362 forty five-four hundred 9440-15710
ERG-350 590-730 nine.8-ninety eight 159.three-231.6 43-420 fifty five-450 9700-1571
ERG-four hundred 590-730 nine.eight-eighty three.3 203.1-290.nine 52-449 75-500 10090-11390
ERG-445 590-730 9.8-73.5 229.7-327.eight 58-477 seventy five-560 10600-12230
ERG-450 590-730 nine.8-seventy three.five 262.four-366.2 sixty four-496 75-560 10600-12230
ERG-five hundred 590-730 nine.eight-sixty three.7 327.4-452.4 78-529 ninety-560 12790-14620
ERF-240-V 650-980 -9.eight- -forty nine 38.one-78 thirteen-seventy six 18.5-90 3420-3285
ERF-245-V 650-980 -9.eight- -49 47.5-97.4 16-95 22-one hundred ten 3425-3360
ERF-250-V 650-980 -nine.8- -forty nine sixty three-a hundred and twenty 19-117 22-132 3910-3830
ERF-290-V 650-980 -nine.8- -forty nine seventy two.6-a hundred and forty four 22-136 thirty-one hundred sixty 4415-4270
ERF-295-V 650-980 -9.8- -49 76.six-152 23-a hundred forty five thirty-160 4425-4485
ERF-297-V 650-980 -9.8- -49 eighty four.3-166.8 26-one hundred sixty 30-180 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 -nine.8- -49 116-225 34-209 45-250 5400-5700
ERG-300V 590-730 -nine.eight- -forty nine 133-193 38-184 forty five-220 7800-9100
ERG-350V 590-730 -9.eight- -forty nine 163-231 43-216 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 -nine.8- -forty nine 224.eight-326.nine fifty eight-303 seventy five-355 9900-10130
ERG-450V 590-730 -9.eight- -forty nine 255-365 sixty four-335 seventy five-400 11230-11300
ERG-500V 590-730 -9.eight- -49 314-452 seventy eight-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 -thirteen.3- -fifty three.3 sixty nine-127 26.five-127 30-one hundred sixty 3985-4115
ERF-290W 650-980 -thirteen.3- -fifty three.3 eighty two.6-150 thirty.five-149 37-185 4340-4580
ERF-295W 650-980 -thirteen.3- -fifty three.3 87-158 32-158 37-185 4440-4580
ERF-297W 650-980 -thirteen.three- -53.3 95-174 36-174 45-200 5230-5130
ERF-300W 650-980 -13.3- -fifty three.3 109-195 forty-193 55-220 5230-5130
ERF-350W 650-980 -13.3- -fifty three.3 129-230 50-230 75-250 5840-5670
ERG-300W 590-730 -thirteen.3- -fifty three.3 142-197 fifty two-201 75-220 9100-9000
ERF-350W 590-730 -thirteen.3- -53.three 168-234.4 59-235.five seventy five-280 9500-9600
ERG-400W 590-730 -13.three- -53.three 220-276.six seventy one-292 90-315 9900-10130
ERG-445W 590-730 -13.3- -fifty three.three 244-294.6 eighty two-331 90-four hundred 11230-11300
ERG450W 590-730 -13.3- -53.3 275-368.5 91-366 a hundred and ten-four hundred 11230-11300
650-980 ninety eight-196 sixty four.8-112 135-355 one hundred sixty-four hundred 8700-8600
650-980 98-196 80.eight-139 167-439 185-500 9200-9100
ETRF-three hundred
650-980 98-176.4 102-174 206-497 250-560 10320-10500
650-980 ninety eight-137.two 124-207 241-473 280-560 10700-11110
590-740 98-176.4 205-273 380-773 450-900 21350-24200
590-740 ninety eight-176.4 263-428 476-955 560-1000 24200-27600
650-980 -fifty three.3–80 seventy two-121 75.6-121 90-160 6100-6470
650-980 -fifty three.3–eighty 93.eight-154 99.5-186 one hundred ten-220 7000-6400
650-980 -fifty three.3–eighty 116-189 a hundred and fifteen-220 132-250 7750-7760
EL81WD 580-980 nine.eight-58.8 fifty four.two-130 eighteen-151 45-185 3595
EL82WDB 580-980 9.8-fifty eight.8 seventy two.8-161 22-191 forty five-220 3860
EL83WDA 580-980 9.8-fifty eight.nine one zero one-213 28.five-202 forty five-220 4300
EL84WDA 580-980 nine.eight-fifty eight.eight 129-267 35.four-252 45-280 4720
EL93WDA 580-730 9.eight-forty nine 230-329 56.4-311 75-355 7765
EL94WDA 580-730 9.eight-forty nine 263-373 sixty four-353 75-400 8130
EL95WDA 490-580 nine.eight-fifty eight.eight 308-434 eighty one.four-414 90-450 11500
EL96WDA 580 fifty eight.eight 381 497 560 11500
E397WN a thousand-1650 forty five-9      
E408WN 870-1650 forty 10-22      
E517WN 980-1580 forty twenty-30      
E520WN 930-1550 40 24-forty five      
E607WN 750-1250 forty forty five-seventy six      
E610WN 750-1250 forty 75-130      

Spare components and structure of our roots blower:

Package of our Roots Blower

Pack into iron case, two layer,blower human body and motor in reduced layer, inlet/out silencer etc in upper layer

Roots blower pack strategy identical as iron circumstance, just alter to Fumigation Free Plywood Circumstance

Our factory is a skilled producer of Roots blowers which has in excess of twenty years’ experience in equipment
producing. It is found in Xihu (West Lake) Dis. CZPT CZPT Park, 50 kilometers to the east of ZheJiang provincial
capital— HangZhou. Our organization also has handy site visitors 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 merchandise of our business is ESR -variety Roots Blower. The roots
vacuum pump is a new type of large-effectiveness roots blower, which is produced independently primarily based on the
domestic and international superior technologies. Several patented technologies have been adopted on Roots
Blower, and hence we have made substantial consequences in power conservation and noise reduction, and many others.. So considerably, our
organization has invested more than thirty,000,000 RMB to introduce this kind of advanced specialist products as
horizontal machining heart, vertical machining centre, two-way CNC floor planer, CNC lathe, CNC milling
equipment, CNC planer, plane grinder, cylindrical grinding machine, and a few coordinates testing equipment.
Apart from, we have taken a variety of actions to CZPTize the procedure stream these kinds of as working and cooperating
with many scientific research units, colleges and universities at house and overseas. We also constantly consider to
absorb and increase the domestic innovative creation technologies, so as to market the upgrading and
optimization of the item and make the solution quality attain the superior stage at property and overseas.
ESR -type Roots Blower contains a number of collection these kinds of as 3-leaves Kind, Two-leaves Sort and Centrifugal
Kind,which can be more divided to hundreds of types. The products are widely utilized in sewage treatment method,
pneumatic conveying,vacuum packaging, aquaculture, food processing, electrical energy, petrochemical, cement,
mining and other industries. Our items have such positive aspects as lower noise, energy conserving, steady good quality,
and lengthy support life, and so forth.. With the revenue outlets throughout the domestic cash metropolitan areas, our merchandise sell well all
more than the region, and have been exported to North CZPTica,Russia, Malaysia, Indonesia, Vietnam, South Africa
and some other nations. Having got the ISO9001 CZPT CZPT System Certification, we have
set up and enhanced the high quality assurance of the goods designing, producing, and set up.
From the procedure of design, research and improvement to the finished items, we have got the whole
process controlled independently, hence supplying the complete foundation and trustworthiness guarantee for the goods balance
and durability. Possessing a perfect revenue network and soon after-product sales support, we provide our consumers with larger-
quality and a lot more productive service.All employees of our business sincerely welcome the wide masses of buddies to
information, and negotiate company with us.

Our Roots Blower Workshop

         Doosn Horzitonal CZPT Heart

The Application of the Roots Blower

Upkeep and inspection
(1) Check out all fasteners and locating pins circumstances no matter whether they are loosening.
(2) Always check whether or not the leakage phenomenon of the physique.
(three) Pay focus to lubrication, amount of grease and noises when running,
determine whether it functions under the needed circumstances.
(four) CZPT & grease: The lubricant is for medium load industrial gear oil
(grade 220, kinematic viscosity of 198 ~ 242mm2 / s 40ºC, flash point ≥ 200ºC)
The grease is butter (artificial lithium grease penetration 220-250, drop point ≥
190ºC). Replace the lubricant and grease after initial 200 hrs working, and exchange
once more right after a moth working. Later on, substitute the lubricant and grease in accordance to the
surroundings and lubricant (grease) good quality suggest a ideal alternative for a few
(5) Usually check out the inlet air filter, cleanse or change the filter in time.
(6) Blower overload often not right away exhibited, so pay out attention to
the consumption and exhaust stress, bearing temperature and the recent boost traits
of motor to establish no matter whether the blower performs normally
(7) Ahead of disassembling the blower, the assembling relation and proportions
have to be recorded or calculated, make marks on elements to make sure the CZPT
needs right after assembling.
(8) When newly machine or overhaul, the oil tank need to be cleaned just before use
and suggest exchange all grease right after 8 hrs running.

Frequent failure purpose and troubleshooting

No Failure Possible factors Elimination methods
one Friction
amongst the
(1) Impurities on the impeller,
ensuing in the hole is too modest
(2) Equipment put on, ensuing in a
large backlash
(3) The equipment is not effectively fixed,
can not preserve the impeller
(four) Bearing use ensuing in
clearance increasing.
(one) Eliminate grime and verify
whether or not there is hurt components
(2) Alter the gear gap, replace
the gears if the equipment backlash is
better than the regular 30% to
(3)Re-assemble the gears, hold
the taper contact area is to seventy five%
(four)Change the bearing
two Collision
impeller and
wall, the
impeller prime
and casing
(1) Installation hole is not correct
(2) working force is as well
large, exceeding the specified
(3) Operating temperature is way too large
(four) Casing or base deformation,
positioning admirer failure
(5) Bearing axial place is not very good
(one) Adjust the gap
(2) Determine triggers of
overloading, lowered the strain
to the specified benefit
(3) Examine the installation
accuracy and decrease the pipe
(four) Check out and mend bearings,
and to make sure the clearance
3 Temperature
also higher
(1) Oil in tank is also considerably, way too
thick or too filthy
(two) CZPT or silencer is blocked
(3)The pressure is higher than
the specified benefit
(four)Excessive put on of the
impeller, large hole
(five)Very poor ventilation, indoor
temperature is large, ensuing in
inlet air’s large temperature
(6) The rotating speed is also low,outcome in the belt slipping.
(one)Lessen the oil degree or count on
(two)Remove of blocking objects
(3)Minimizing the pressure by means of
the blower
(4)Repair its clearance
(five)Open vents to reduce area
(six) Enhance velocity to avoid the
belt slipping.
four Insufficient
(one) The inlet filter is blocked
(two) Impeller use and the gap
increases as well a lot
(3) Belt slipping
(4) Big imports force loss
(5) CZPT ventilation leakage
(one) Clean the filter dust and
(two) Mend the hole
(three)Tighten the belt and enhance
the quantity of belts
(4)Change the inlet strain to the
specified value
(5) Verify and mend the pipeline
5 Oil leaking or
oil leaking
into the enclosure
(one)Substantial tank position lead to
leakage from the discharge port
(two) Seal dress in, ensuing in shaft oil spills
(3) The pressure is increased than
the specified benefit

(one)Reduce the oil level
(2)Change the seals
(3)Distinct the air vents, 2mm diameter faucet is fixed in the
center chamber, open up the faucet
underneath the wall
6 Abnormal
vibration and
(one)Bearing clearance exceeds the
specified value or bearing use
(two) The gear backlash is too
huge, not in a limited fixed
(3) The international objects and dust
caused by the impeller and the
impeller, the impeller and the
housing collision
(4) the impeller shaft
deformation caused the collision
triggered by overload,
(five) Friction between the impeller
and the inlet housing triggered by
(6) Unbalance of the impeller
brought on by fouling or overseas
(7) CZPT bolts or other
fasteners are loosened
(one)Exchange bearings or bearing
(two)Reassemble gear and ensure
(3)Cleansing blower, verify the
circumstance is ruined
(4)Examine the back again pressure, examine
the wheel and change hole
(5)Examine the filter and again
stress, increase the hole
in between the impeller inlet and the
(six)Clean the impeller and the
casing, to make certain that the impeller
clearance operate
(seven) Tighten the anchor bolts and
leveling the foundation.
seven Motor
(1)Compared with the necessary
stress, the strain distinction
is large that the again pressure or
the inlet stress is high
(two) Compared with the
tools needs, blower
flow is also large, so its stress
(three)Inlet filter is blocked, or outlet
pipe is obstructed or blocked
(four) Collusion or friction (trapped)
rotating parts
(five) The oil stage is too high
(six) Narrow V-belt is overheat,
vibration is also huge, or pulley
is way too tiny
(1) Minimize the stress to the
specified price
(2) Exhaust the excessive gas into
the environment or lessen the
blower velocity
(three) Eliminate the obstructions
(four)Right away shut down, examine
the purpose
(five) Change the oil to the correct
(six) Check out the belt stress, and
replaced it with huge diameter

Our Services

one. Pre market service                                                                              2. Right after promote service                                          
a. recommend the appropriate model                                             c. on the web technical assistance,                                                                                   
b. manufacturing unit tour                                                                              d. entire lifestyle spare parts and techinical support


12 months gurantee for our roots blowers

Elt-80 High Efficiency Low Engergy Roots Vacuum Pump

Vacuum Pump

As one of the vacuum pump manufacturers, suppliers, and exporters of mechanical products, We offer vacuum pumps and many other products.

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