Elt-65 High Efficiency Low Engergy Roots Vacuum Pump

Elt-65 High Efficiency Low Engergy Roots Vacuum Pump

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

Sort Diameter Rate of circulation Stress
ESR-MJ(Intensive Variety) Φ50~Φ300mm .5~140m³/min nine.8KPa~ninety eight.8Kpa
ESR(Common Kind) Φ50~Φ350mm .5~140m³/min nine.8KPa~seventy eight.4Kpa
ESR-H(Higher-pressure Variety) Φ50~Φ350mm .seven~160m³/min 58.8KPa~ninety eight.8Kpa
ESR-V(Vacuum Pump) Φ50~Φ350mm .five~160m³/min 9.8KPa~53.3Kpa
EL Sequence Φ200~Φ600mm 20.three~750m³/min nine.8KPa~58.8Kpa
Multistage Centrifugal Blower
or C-Series
Φ250~Φ500mm 50~500m³/min 9.8KPa~98Kpa
ERR-ERG Kind Φ250~Φ500mm one hundred twenty~420m³/min 9.8KPa~ninety eight.8Kpa

The operating principle of the a few-blade roots blower: two 3-lobed rotors are arranged in the cavity, and the
suction port and the discharge port are opened on the two sides of the cavity. By way of 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 gas in the chamber is pushed to obtain the
objective of blowing.

Characteristic of our roots blower:
one. Huge adjustment of the air volume
two. Reduced Sound
three. Higher performance
4. Minimal energy cosumption
5. Prolonged time lifestyle
6. Reputable working, easy routine maintenance,small footprint

The parameters of our roots blower:

Kind Ratary Speed
Force Increase
Shaft Energy
Motor Unit Maximn
Excess weight(Kg)
ESR-fifty 1100-2120 9.8-fifty eight.eight .sixty five-2.fifty eight .three-3.54 .75-4 128-158
ESR-65 1100-2130 9.eight-58.eight .ninety four-3.66 .38-four.46 .seventy five-5.five one hundred fifty five-185
ESR-80 1140-1900 9.eight-58.8 two.34-5.43 one.04-seven.forty two two.two-eleven one hundred fifty five-277
ESR-100 1060-1980 9.8-58.8 4.fifty seven-9.05 1.35-twelve.fifteen three-15 309-377
ESR-a hundred twenty five 980-1850 9.8-58.8 5.35-twelve.4 one.65-5.19 5.5-eighteen.five 408-451
ESR-125C 970-1830 nine.8-58.8 7.5-seventeen.fifty seven 3.2-eighteen.5 4-22 408-451
ESR-150 810-1730 nine.eight-fifty eight.8 ten.37-27.fifteen 3.eighty four-forty.82 7.five-forty five 688-848
ESR-one hundred seventy five 970-1520 9.8-58.eight 19.65-36.sixty five seven.two-45.ninety five eleven-55 980-1080
ESR-200B 740-1450 9.eight-fifty eight.eight 19.65-forty four.eight 10.fifteen-60.44 fifteen-seventy five 1272-1546
ESR-200 810-1480 nine.8-58.eight 27.sixty five-59.2 eight.05-eighty,12 15-ninety 1272-1546
ESR-250B 1100-1480 9.eight-58.8 54.seventy seven-77.55 19.ninety seven-90.97 30-a hundred and ten 1490-2454
ESR-250 990-1480 nine.8-58.eight 61.4-ninety seven.52 20.1-117.three 30-132 1490-2454
ESR-300 990-1480 9.8-58.eight 87.one-138.1 26.four-167.eight 37-185 3326-3446
ESR-350 730-1480 nine.8-fifty eight.eight 78.41-177.31   fifty five-250  
ESR-50H 1230-2120 63.seven-98 .forty five-2.02 2.05-six.twelve 3-seven.5 one hundred sixty–one hundred seventy
ESR-65H 1240-2130 sixty three.7-98 .seventy eight-two.53 2.89-7.fifty five 4-11 198-230
ESR-80H 1140-1900 63.seven-98 1.eighty two-four.fifty five 4.09-ten.one 5.5-15 316-326
ESR-100H 1060-1980 63.7-ninety eight two.65-8.06 six.36-seventeen.2 seven.five-22 398-459
ESR-125H 980-1850 63.7-ninety eight 4.64-eleven.23 eight.ninety two-24.two eleven-thirty 544-630
ESR-150H 810-1730 63.7-ninety eight nine.fifty three-twenty five.seventy six seventeen.16-sixty five eighteen.5-seventy five 752-1571
ESR-200H 810-1480 63.7-ninety eight 25.34-fifty six.92 42.34-one hundred twenty 55-132 1426-1934
ESR-250H 990-1480 sixty three.seven-98 58-93.7 eighty three.two-205 90-220 2980-3468
ESR300H 990-1480 63.7-98 86.nine-134.1 114.7-270 132-280 3476-3998
ERF-245 650-980 9.8-ninety eight 47.five-ninety seven.four 16-183 18.5-200 3630-3690
ERF-250 650-980 nine.8-ninety eight 61.6-120.four 19-227 22-250 4450-4500
ERF-290 650-980 nine.8-seventy eight.4 92.3-128 22-213 thirty-250 4890-4710
ERF-295 650-980 nine.eight-78.four 97.three-152.five 23-227 30-250 4890-4880
ERF-297 650-980 nine.eight-seventy eight.four 87.5-167.6 26-249 thirty-280 5330-5520
ERF-three hundred 650-980 nine.8-seventy eight.four one zero one.five-188.seven 29-278 37-315 5330-5520
ERF-350 650-980 9.eight-78.4 126-224.nine 34-249 45-280 5210-6470
ERG-three hundred 590-730 9.eight-ninety eight 128.three-196 38-362 45-four hundred 9440-15710
ERG-350 590-730 9.8-ninety eight 159.three-231.6 forty three-420 55-450 9700-1571
ERG-four hundred 590-730 nine.eight-eighty three.three 203.1-290.nine fifty two-449 seventy five-five hundred 10090-11390
ERG-445 590-730 9.8-73.five 229.7-327.eight 58-477 75-560 10600-12230
ERG-450 590-730 9.8-seventy three.five 262.4-366.2 64-496 75-560 10600-12230
ERG-500 590-730 nine.8-sixty three.7 327.4-452.4 seventy eight-529 90-560 12790-14620
ERF-240-V 650-980 -nine.eight- -forty nine 38.1-seventy eight thirteen-seventy six 18.five-90 3420-3285
ERF-245-V 650-980 -nine.eight- -forty nine forty seven.5-ninety seven.4 sixteen-95 22-110 3425-3360
ERF-250-V 650-980 -9.eight- -49 sixty three-a hundred and twenty 19-117 22-132 3910-3830
ERF-290-V 650-980 -9.8- -49 72.6-one hundred forty four 22-136 thirty-a hundred and sixty 4415-4270
ERF-295-V 650-980 -9.eight- -forty nine seventy six.6-152 23-one hundred forty five thirty-160 4425-4485
ERF-297-V 650-980 -9.8- -49 84.3-166.eight 26-a hundred and sixty 30-180 5000-4980
ERF-300-V 650-980 -9.8- -forty nine ninety seven-192 29-178 37-two hundred 5000-4980
ERF-350-V 650-980 -9.8- -forty nine 116-225 34-209 forty five-250 5400-5700
ERG-300V 590-730 -nine.8- -49 133-193 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 -nine.eight- -forty nine 199-290 fifty two-269 75-315 9900-10130
ERG-445V 590-730 -nine.8- -49 224.8-326.9 fifty eight-303 seventy five-355 9900-10130
ERG-450V 590-730 -9.eight- -forty nine 255-365 64-335 seventy five-four hundred 11230-11300
ERG-500V 590-730 -9.eight- -forty nine 314-452 seventy eight-412 132-450 13630-13850
ERF-245W 650-980 -13.3- -53.3 53.five-a hundred and one 21.five-102 thirty-a hundred and ten 3630-3360
ERF-250W 650-980 -13.three- -53.three sixty nine-127 26.five-127 30-a hundred and sixty 3985-4115
ERF-290W 650-980 -thirteen.three- -fifty three.3 eighty two.six-150 thirty.five-149 37-185 4340-4580
ERF-295W 650-980 -thirteen.three- -53.three 87-158 32-158 37-185 4440-4580
ERF-297W 650-980 -13.three- -53.3 ninety five-174 36-174 45-200 5230-5130
ERF-300W 650-980 -13.three- -fifty three.3 109-195 forty-193 fifty five-220 5230-5130
ERF-350W 650-980 -thirteen.3- -fifty three.three 129-230 fifty-230 75-250 5840-5670
ERG-300W 590-730 -13.three- -53.three 142-197 52-201 75-220 9100-9000
ERF-350W 590-730 -thirteen.3- -53.3 168-234.four 59-235.5 seventy five-280 9500-9600
ERG-400W 590-730 -thirteen.3- -fifty three.3 220-276.6 71-292 ninety-315 9900-10130
ERG-445W 590-730 -thirteen.three- -fifty three.3 244-294.six eighty two-331 ninety-four hundred 11230-11300
ERG450W 590-730 -thirteen.3- -53.three 275-368.5 ninety one-366 one hundred ten-four hundred 11230-11300
650-980 98-196 64.eight-112 a hundred thirty five-355 160-400 8700-8600
650-980 ninety eight-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 98-137.2 124-207 241-473 280-560 10700-11110
ETRG-four hundred
590-740 98-176.four 205-273 380-773 450-900 21350-24200
590-740 98-176.4 263-428 476-955 560-one thousand 24200-27600
650-980 -53.three–eighty seventy two-121 seventy five.six-121 ninety-a hundred and sixty 6100-6470
650-980 -fifty three.three–80 93.8-154 ninety nine.five-186 110-220 7000-6400
(2505/three hundred)
650-980 -fifty three.3–eighty 116-189 a hundred and fifteen-220 132-250 7750-7760
EL81WD 580-980 9.8-58.8 54.two-one hundred thirty 18-151 45-185 3595
EL82WDB 580-980 nine.eight-58.eight 72.8-161 22-191 forty five-220 3860
EL83WDA 580-980 9.8-fifty eight.9 a hundred and one-213 28.five-202 45-220 4300
EL84WDA 580-980 9.eight-58.eight 129-267 35.four-252 45-280 4720
EL93WDA 580-730 9.eight-forty nine 230-329 56.four-311 75-355 7765
EL94WDA 580-730 nine.8-49 263-373 sixty four-353 75-four hundred 8130
EL95WDA 490-580 9.eight-58.8 308-434 81.four-414 ninety-450 11500
EL96WDA 580 fifty eight.8 381 497 560 11500
E397WN 1000-1650 forty five-nine      
E408WN 870-1650 forty ten-22      
E517WN 980-1580 forty twenty-thirty      
E520WN 930-1550 forty 24-forty five      
E607WN 750-1250 forty forty five-76      
E610WN 750-1250 40 75-a hundred thirty      

Spare parts and structure of our roots blower:

Deal of our Roots Blower

Pack into iron scenario, two layer,blower human body and motor in reduce layer, inlet/out silencer and many others in upper layer

Roots blower pack approach same as iron scenario, just change to Fumigation Cost-free Plywood Case

Our factory is a skilled company of Roots blowers which has over twenty years’ experience in machinery
production. It is located in Xihu (West Lake) Dis. East CZPT Park, fifty kilometers to the east of ZheJiang provincial
cash— HangZhou. Our firm also has hassle-free visitors transportation, as it is 15 kilometers away from
Diaozhen Town station of HangZhou-HangZhou expressway, and thirty kilometers absent from East HangZhou station of
ZheJiang -ZheJiang expressway.The top solution of our business is ESR -variety Roots Blower. The roots
vacuum pump is a new kind of large-effectiveness roots blower, which is developed independently based on the
domestic and foreign sophisticated technologies. Numerous patented technologies have been adopted on Roots
Blower, and therefore we have made considerable outcomes in energy conservation and noise reduction, and many others.. So far, our
organization has invested a lot more than 30,000,000 RMB to introduce such superior skilled gear as
horizontal machining middle, vertical machining heart, two-way CNC surface planer, CNC lathe, CNC milling
equipment, CNC planer, plane grinder, cylindrical grinding equipment, and 3 coordinates tests machine.
In addition to, we have taken numerous measures to CZPTize the procedure movement this sort of as functioning and cooperating
with several scientific research units, schools and universities at home and abroad. We also continuously consider to
take in and improve the domestic superior manufacturing technologies, so as to promote the upgrading and
optimization of the product and make the merchandise high quality reach the superior level at house and overseas.
ESR -kind Roots Blower consists of a number of collection this kind of as 3-leaves Sort, Two-leaves Type and Centrifugal
Type,which can be even more divided to hundreds of versions. The merchandise are commonly employed in sewage treatment method,
pneumatic conveying,vacuum packaging, aquaculture, meals processing, electric powered energy, petrochemical, cement,
mining and other industries. Our merchandise have these kinds of rewards as lower noise, strength saving, steady quality,
and extended service life, etc.. With the sales outlets throughout the domestic money metropolitan areas, our merchandise offer effectively all
more than the nation, and have been exported to North The usa,Russia, Malaysia, Indonesia, Vietnam, South Africa
and some other nations around the world. Possessing obtained the ISO9001 CZPT CZPT System Certification, we have
established and enhanced the good quality assurance of the merchandise developing, producing, and set up.
From the procedure of design, analysis and advancement to the finished items, we have received the complete
method managed independently, thus offering the full foundation and dependability promise for the items balance
and longevity. Having a perfect income network and after-sales services, we supply our buyers with higher-
high quality and more successful services.All employees of our organization sincerely welcome the broad masses of friends to
manual, and negotiate organization with us.

Our Roots Blower Workshop

         Doosn Horzitonal CZPT Centre

The Application of the Roots Blower

Routine maintenance and inspection
(one) Check all fasteners and locating pins circumstances whether they are loosening.
(2) Constantly examine regardless of whether the leakage phenomenon of the human body.
(three) Pay out attention to lubrication, sum of grease and noises when working,
decide whether or not it functions below the needed situations.
(four) CZPT & grease: The lubricant is for medium load industrial gear oil
(quality 220, kinematic viscosity of 198 ~ 242mm2 / s 40ºC, flash point ≥ 200ºC)
The grease is butter (artificial lithium grease penetration 220-250, fall stage ≥
190ºC). Replace the lubricant and grease right after 1st 200 several hours running, and replace
once more soon after a moth operating. Later, change the lubricant and grease according to the
surroundings and lubricant (grease) high quality suggest a suitable substitute for three
(five) Constantly check the inlet air filter, thoroughly clean or replace the filter in time.
(six) Blower overload occasionally not instantly exhibited, so pay attention to
the consumption and exhaust stress, bearing temperature and the current boost trends
of motor to establish regardless of whether the blower operates typically
(seven) Ahead of disassembling the blower, the assembling relation and dimensions
need to be recorded or measured, make marks on components to make sure the CZPT
requirements following assembling.
(8) When newly device or overhaul, the oil tank must be cleaned ahead of use
and propose change all grease soon after eight several hours managing.

Widespread failure explanation and troubleshooting

No Failure Feasible factors Elimination strategies
1 Friction
between the
(1) Impurities on the impeller,
ensuing in the hole is too modest
(two) Gear dress in, resulting in a
huge backlash
(three) The gear is not properly fixed,
can not maintain the impeller
(four) Bearing dress in resulting in
clearance growing.
(one) Remove dirt and examine
whether there is hurt parts
(2) Modify the gear hole, replace
the gears if the equipment backlash is
better than the regular 30% to
(3)Re-assemble the gears, keep
the taper speak to location is to seventy five%
(4)Substitute the bearing
two Collision
impeller and
wall, the
impeller prime
and casing
(one) Set up hole is not proper
(two) working strain is way too
higher, exceeding the specified
(three) Operating temperature is way too high
(4) Casing or base deformation,
positioning admirer failure
(five) Bearing axial location is not excellent
(one) Modify the gap
(two) Determine leads to of
overloading, lowered the stress
to the specified benefit
(3) Check out the set up
precision and reduce the pipe
(four) Check and repair bearings,
and to make certain the clearance
three Temperature
too substantial
(one) Oil in tank is way too a lot, as well
thick or also filthy
(2) CZPT or silencer is blocked
(3)The strain is increased than
the specified worth
(four)Abnormal wear of the
impeller, huge hole
(five)Poor air flow, indoor
temperature is high, resulting in
inlet air’s high temperature
(six) The rotating velocity is as well low,consequence in the belt slipping.
(one)Decrease the oil degree or depend on
(two)Get rid of of blocking objects
(three)Lowering the strain via
the blower
(four)Restore its clearance
(5)Open up vents to minimize place
(6) Improve speed to stop the
belt slipping.
four Inadequate
(1) The inlet filter is blocked
(2) Impeller put on and the gap
will increase also a lot
(three) Belt slipping
(four) Huge imports pressure loss
(five) CZPT ventilation leakage
(1) Clear the filter dust and
(two) Fix the gap
(three)Tighten the belt and boost
the variety of belts
(4)Alter the inlet force to the
specified value
(five) Examine and fix the pipeline
five Oil leaking or
oil leaking
into the enclosure
(1)High tank placement lead to
leakage from the discharge port
(two) Seal dress in, resulting in shaft oil spills
(three) The stress is increased than
the specified price

(one)Reduce the oil stage
(two)Substitute the seals
(3)Obvious the air vents, 2mm diameter faucet is set in the
center chamber, open up the faucet
below the wall
six Abnormal
vibration and
(one)Bearing clearance exceeds the
specified worth or bearing use
(two) The gear backlash is way too
large, not in a limited mounted
(three) The foreign objects and dust
brought on by the impeller and the
impeller, the impeller and the
housing collision
(four) the impeller shaft
deformation triggered the collision
induced by overload,
(five) Friction amongst the impeller
and the inlet housing brought on by
(six) Unbalance of the impeller
caused by fouling or foreign
human body
(7) CZPT bolts or other
fasteners are loosened
(1)Exchange bearings or bearing
(two)Reassemble gear and ensure
(three)Cleansing blower, examine the
circumstance is damaged
(four)Verify the again pressure, check out
the wheel and change hole
(5)Check the filter and back again
force, increase the gap
in between the impeller inlet and the
(six)Thoroughly clean the impeller and the
casing, to make certain that the impeller
clearance function
(7) Tighten the anchor bolts and
leveling the base.
7 Motor
(one)In comparison with the essential
stress, the pressure difference
is massive that the again stress or
the inlet pressure is high
(2) Compared with the
tools demands, blower
circulation is way too big, so its force
(three)Inlet filter is blocked, or outlet
pipe is obstructed or blocked
(4) Collusion or friction (trapped)
rotating elements
(five) The oil degree is also high
(6) Slim V-belt is overheat,
vibration is too huge, or pulley
is way too small
(1) Reduce the strain to the
specified worth
(two) Exhaust the surplus gas into
the atmosphere or minimize the
blower velocity
(3) Eliminate the obstructions
(four)Immediately shut down, check
the explanation
(5) Alter the oil to the proper
(6) Check the belt tension, and
replaced it with big diameter

Our Service

one. Pre sell service                                                                              2. After offer service                                          
a. advocate the suitable model                                             c. on-line complex assistance,                                                                                   
b. factory tour                                                                              d. whole lifestyle spare areas and techinical assistance


twelve months gurantee for our roots blowers

Elt-65 High Efficiency Low Engergy Roots Vacuum Pump

Mail: Sales@china-vacuum-pumps.com

Professional production Roots Vacuum Pumps, rotary vane pump, rotary piston pump, liquid ring vacuum pump, Oil-free Air Compressor, Screw Compressor, Scroll Compressor Manufacturer and Supplier.