Elt-65 High Efficiency Low Engergy Roots Vacuum Pump

Elt-65 High Efficiency Low Engergy Roots Vacuum Pump

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

Kind Diameter Fee of stream Force
ESR-MJ(Intense Kind) Φ50~Φ300mm .5~140m³/min 9.8KPa~98.8Kpa
ESR(Ordinary Sort) Φ50~Φ350mm .five~140m³/min 9.8KPa~78.4Kpa
ESR-H(High-pressure Type) Φ50~Φ350mm .7~160m³/min 58.8KPa~ninety eight.8Kpa
ESR-V(Vacuum Pump) Φ50~Φ350mm .five~160m³/min nine.8KPa~53.3Kpa
EL Series Φ200~Φ600mm twenty.three~750m³/min 9.8KPa~58.8Kpa
Multistage Centrifugal Blower
or C-Sequence
Φ250~Φ500mm 50~500m³/min nine.8KPa~98Kpa
ERR-ERG Sort Φ250~Φ500mm 120~420m³/min nine.8KPa~ninety eight.8Kpa

The operating theory of the 3-blade roots blower: two a few-lobed rotors are organized in the cavity, and the
suction port and the discharge port are opened on each sides of the cavity. By way of the action 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 gasoline in the chamber is pushed to accomplish the
function of blowing.

Characteristic of our roots blower:
1. Massive adjustment of the air quantity
2. Low Noise
three. High effectiveness
4. Minimal strength cosumption
five. Prolonged time existence
six. Reputable managing, easy upkeep,small footprint

The parameters of our roots blower:

Kind Ratary Pace
Strain Rise
Shaft Power
Motor Unit Maximn
Electrical power
ESR-50 1100-2120 nine.eight-fifty eight.8 .65-2.fifty eight .3-3.54 .75-4 128-158
ESR-sixty five 1100-2130 nine.8-58.8 .ninety four-3.66 .38-four.forty six .75-5.five 155-185
ESR-80 1140-1900 nine.eight-fifty eight.8 two.34-5.43 1.04-seven.42 two.2-eleven 155-277
ESR-a hundred 1060-1980 9.eight-fifty eight.eight four.57-9.05 1.35-12.15 three-fifteen 309-377
ESR-one hundred twenty five 980-1850 nine.8-58.eight 5.35-12.four one.sixty five-five.19 five.five-eighteen.five 408-451
ESR-125C 970-1830 nine.8-58.eight 7.five-17.fifty seven three.two-eighteen.5 four-22 408-451
ESR-a hundred and fifty 810-1730 9.eight-fifty eight.8 10.37-27.fifteen 3.eighty four-40.82 seven.5-forty five 688-848
ESR-a hundred seventy five 970-1520 nine.8-58.8 19.65-36.sixty five seven.two-forty five.ninety five 11-fifty five 980-1080
ESR-200B 740-1450 9.8-fifty eight.eight 19.sixty five-forty four.8 ten.fifteen-60.forty four 15-seventy five 1272-1546
ESR-200 810-1480 9.8-58.eight 27.65-fifty nine.two eight.05-eighty,12 fifteen-90 1272-1546
ESR-250B 1100-1480 9.eight-fifty eight.8 fifty four.77-seventy seven.55 19.97-90.ninety seven thirty-a hundred and ten 1490-2454
ESR-250 990-1480 nine.eight-fifty eight.eight sixty one.four-ninety seven.52 twenty.one-117.three thirty-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.8-58.8 78.forty one-177.31   55-250  
ESR-50H 1230-2120 63.seven-98 .45-2.02 2.05-6.12 three-seven.5 one hundred sixty–one hundred seventy
ESR-65H 1240-2130 sixty three.7-98 .78-two.53 two.89-7.fifty five four-eleven 198-230
ESR-80H 1140-1900 63.7-ninety eight 1.eighty two-4.55 4.09-ten.1 5.5-15 316-326
ESR-100H 1060-1980 63.seven-98 2.sixty five-8.06 six.36-seventeen.two 7.five-22 398-459
ESR-125H 980-1850 sixty three.7-98 4.64-eleven.23 8.92-24.two eleven-30 544-630
ESR-150H 810-1730 sixty three.seven-ninety eight 9.fifty three-twenty five.76 seventeen.sixteen-sixty five eighteen.5-seventy five 752-1571
ESR-200H 810-1480 63.7-98 25.34-fifty six.92 forty two.34-one hundred twenty 55-132 1426-1934
ESR-250H 990-1480 sixty three.seven-ninety eight fifty eight-93.7 eighty three.two-205 90-220 2980-3468
ESR300H 990-1480 63.seven-ninety eight 86.9-134.one 114.seven-270 132-280 3476-3998
ERF-245 650-980 nine.eight-98 47.5-97.4 sixteen-183 18.5-200 3630-3690
ERF-250 650-980 9.eight-ninety eight 61.six-a hundred and twenty.four 19-227 22-250 4450-4500
ERF-290 650-980 nine.eight-seventy eight.4 92.three-128 22-213 30-250 4890-4710
ERF-295 650-980 9.eight-seventy eight.4 ninety seven.3-152.5 23-227 thirty-250 4890-4880
ERF-297 650-980 nine.eight-78.4 87.5-167.6 26-249 30-280 5330-5520
ERF-300 650-980 nine.eight-seventy eight.4 one zero one.five-188.seven 29-278 37-315 5330-5520
ERF-350 650-980 nine.eight-78.four 126-224.9 34-249 45-280 5210-6470
ERG-three hundred 590-730 9.8-98 128.three-196 38-362 forty five-four hundred 9440-15710
ERG-350 590-730 nine.8-ninety eight 159.3-231.6 43-420 fifty five-450 9700-1571
ERG-400 590-730 nine.eight-eighty three.3 203.1-290.nine 52-449 75-500 10090-11390
ERG-445 590-730 9.8-seventy three.5 229.7-327.eight 58-477 seventy five-560 10600-12230
ERG-450 590-730 9.8-73.five 262.4-366.2 64-496 75-560 10600-12230
ERG-five hundred 590-730 9.8-sixty three.seven 327.4-452.four seventy eight-529 90-560 12790-14620
ERF-240-V 650-980 -9.8- -49 38.one-78 13-seventy six 18.5-ninety 3420-3285
ERF-245-V 650-980 -9.eight- -49 47.5-97.four sixteen-95 22-one hundred ten 3425-3360
ERF-250-V 650-980 -9.eight- -forty nine 63-120 19-117 22-132 3910-3830
ERF-290-V 650-980 -nine.8- -forty nine seventy two.six-144 22-136 30-a hundred and sixty 4415-4270
ERF-295-V 650-980 -nine.8- -49 seventy six.six-152 23-one hundred forty five thirty-a hundred and sixty 4425-4485
ERF-297-V 650-980 -nine.8- -49 84.3-166.eight 26-one hundred sixty thirty-a hundred and eighty 5000-4980
ERF-three hundred-V 650-980 -nine.eight- -49 97-192 29-178 37-two hundred 5000-4980
ERF-350-V 650-980 -9.8- -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.8- -49 163-231 forty three-216 55-250 9500-9470
ERG-400V 590-730 -nine.8- -49 199-290 52-269 75-315 9900-10130
ERG-445V 590-730 -9.8- -forty nine 224.8-326.nine 58-303 75-355 9900-10130
ERG-450V 590-730 -9.8- -49 255-365 sixty four-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- -fifty three.3 53.five-a hundred and one 21.five-102 30-a hundred and 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 -13.three- -53.three 82.6-150 30.five-149 37-185 4340-4580
ERF-295W 650-980 -13.three- -53.3 87-158 32-158 37-185 4440-4580
ERF-297W 650-980 -13.three- -53.three ninety five-174 36-174 45-two hundred 5230-5130
ERF-300W 650-980 -13.3- -53.3 109-195 40-193 55-220 5230-5130
ERF-350W 650-980 -thirteen.three- -fifty three.3 129-230 fifty-230 75-250 5840-5670
ERG-300W 590-730 -thirteen.three- -fifty three.three 142-197 52-201 seventy five-220 9100-9000
ERF-350W 590-730 -thirteen.three- -fifty three.three 168-234.four 59-235.5 seventy five-280 9500-9600
ERG-400W 590-730 -thirteen.three- -53.3 220-276.6 71-292 ninety-315 9900-10130
ERG-445W 590-730 -13.3- -53.three 244-294.six eighty two-331 90-four hundred 11230-11300
ERG450W 590-730 -thirteen.3- -fifty three.three 275-368.five ninety one-366 one hundred ten-four hundred 11230-11300
650-980 ninety eight-196 64.8-112 a hundred thirty five-355 160-400 8700-8600
650-980 ninety eight-196 eighty.8-139 167-439 185-five hundred 9200-9100
650-980 ninety eight-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
(300,four hundred)
590-740 98-176.4 205-273 380-773 450-900 21350-24200
590-740 98-176.four 263-428 476-955 560-a thousand 24200-27600
650-980 -fifty three.3–80 72-121 75.6-121 90-a hundred and sixty 6100-6470
650-980 -53.3–eighty ninety three.8-154 99.5-186 110-220 7000-6400
(2505/three hundred)
650-980 -53.three–eighty 116-189 one hundred fifteen-220 132-250 7750-7760
EL81WD 580-980 nine.8-58.eight 54.2-130 eighteen-151 45-185 3595
EL82WDB 580-980 9.8-58.eight seventy two.eight-161 22-191 45-220 3860
EL83WDA 580-980 9.8-fifty eight.nine 101-213 28.5-202 forty five-220 4300
EL84WDA 580-980 9.eight-58.8 129-267 35.4-252 forty five-280 4720
EL93WDA 580-730 nine.8-49 230-329 56.four-311 seventy five-355 7765
EL94WDA 580-730 9.8-49 263-373 sixty four-353 seventy five-400 8130
EL95WDA 490-580 nine.8-58.8 308-434 eighty one.four-414 ninety-450 11500
EL96WDA 580 58.eight 381 497 560 11500
E397WN a thousand-1650 40 5-9      
E408WN 870-1650 forty 10-22      
E517WN 980-1580 40 twenty-30      
E520WN 930-1550 forty 24-forty five      
E607WN 750-1250 40 forty five-76      
E610WN 750-1250 40 75-130      

Spare elements and structure of our roots blower:

Package deal of our Roots Blower

Pack into iron situation, two layer,blower entire body and motor in decrease layer, inlet/out silencer etc in higher layer

Roots blower pack approach identical as iron circumstance, just modify to Fumigation Free of charge Plywood Scenario

Our manufacturing unit is a professional producer of Roots blowers which has above twenty years’ experience in equipment
producing. It is found in Xihu (West Lake) Dis. East CZPT Park, 50 kilometers to the east of ZheCZPT provincial
funds— HangCZPT. Our company also has handy visitors transportation, as it is fifteen kilometers absent from
Diaozhen Town station of HangCZPT-HangCZPT expressway, and thirty kilometers absent from East HangCZPT station of
ZheCZPT -ZheCZPT expressway.The top solution of our firm is ESR -sort Roots Blower. The roots
vacuum pump is a new sort of substantial-effectiveness roots blower, which is created independently based mostly on the
domestic and international sophisticated systems. Many patented technologies have been adopted on Roots
Blower, and therefore we have created considerable results in strength conservation and noise reduction, and many others.. So significantly, our
company has invested far more than thirty,000,000 RMB to introduce this sort of advanced specialist gear as
horizontal machining heart, vertical machining middle, two-way CNC surface area planer, CNC lathe, CNC milling
machine, CNC planer, airplane grinder, cylindrical grinding machine, and three coordinates screening equipment.
In addition to, we have taken numerous steps to standardize the procedure movement this kind of as operating and cooperating
with many scientific research units, faculties and universities at residence and overseas. We also constantly try to
take up and increase the domestic sophisticated creation systems, so as to advertise the upgrading and
optimization of the item and make the merchandise top quality achieve the sophisticated amount at residence and overseas.
ESR -variety Roots Blower consists of a number of collection this sort of as 3-leaves Variety, Two-leaves Variety and Centrifugal
Type,which can be even more divided to hundreds of versions. The products are broadly utilised in sewage treatment method,
pneumatic conveying,vacuum packaging, aquaculture, foodstuff processing, electric powered power, petrochemical, cement,
mining and other industries. Our merchandise have these kinds of positive aspects as minimal sounds, vitality saving, stable top quality,
and long provider lifestyle, and so on.. With the revenue outlets throughout the domestic cash metropolitan areas, our items market well all
more than the region, and have been exported to North The us,Russia, Malaysia, Indonesia, Vietnam, South Africa
and some other countries. Obtaining got the ISO9001 CZPT High quality Method Certification, we have
established and enhanced the high quality assurance of the items designing, production, and installation.
From the procedure of design, analysis and growth to the concluded merchandise, we have got the entire
process managed independently, hence supplying the complete basis and reliability promise for the items steadiness
and durability. Having a perfect product sales community and soon after-product sales support, we supply our buyers with higher-
quality and far more productive support.All employees of our business sincerely welcome the broad masses of close friends to
information, and negotiate company with us.

Our Roots Blower Workshop

         Doosn Horzitonal Device Middle

The Software of the Roots Blower

Routine maintenance and inspection
(1) Check all fasteners and finding pins conditions regardless of whether they are loosening.
(2) Constantly check out no matter whether the leakage phenomenon of the entire body.
(three) Shell out consideration to lubrication, amount of grease and noises when managing,
determine regardless of whether it works under the required conditions.
(4) Lubricant & grease: The lubricant is for medium load industrial equipment oil
(grade 220, kinematic viscosity of 198 ~ 242mm2 / s 40ºC, flash level ≥ 200ºC)
The grease is butter (synthetic lithium grease penetration 220-250, fall position ≥
190ºC). Change the lubricant and grease right after initial two hundred hrs working, and exchange
once more after a moth operating. Later, change the lubricant and grease according to the
surroundings and lubricant (grease) good quality propose a appropriate alternative for 3
(5) Constantly examine the inlet air filter, cleanse or change the filter in time.
(six) Blower overload sometimes not quickly shown, so spend attention to
the consumption and exhaust stress, bearing temperature and the recent increase traits
of motor to determine regardless of whether the blower functions generally
(seven) Just before disassembling the blower, the assembling relation and proportions
should be recorded or calculated, make marks on factors to make certain the CZPT
requirements soon after assembling.
(eight) When recently machine or overhaul, the oil tank ought to be cleaned just before use
and propose change all grease after eight hrs working.

Typical failure reason and troubleshooting

No Failure Feasible causes Elimination strategies
1 Friction
between the
(1) Impurities on the impeller,
resulting in the hole is way too modest
(2) Equipment wear, ensuing in a
massive backlash
(3) The equipment is not effectively fastened,
can not maintain the impeller
(4) Bearing put on resulting in
clearance growing.
(1) Get rid of grime and verify
no matter whether there is injury areas
(two) Modify the equipment hole, substitute
the gears if the gear backlash is
better than the average thirty% to
(three)Re-assemble the gears, keep
the taper make contact with location is to seventy five%
(4)Exchange the bearing
two Collision
impeller and
wall, the
impeller leading
and casing
(1) Set up hole is not right
(2) running pressure is also
large, exceeding the specified
(3) Working temperature is way too large
(four) Casing or foundation deformation,
positioning fan failure
(five) Bearing axial location is not great
(one) Modify the gap
(2) Identify causes of
overloading, decreased the strain
to the specified value
(3) Verify the set up
accuracy and minimize the pipe
(four) Verify and mend bearings,
and to make sure the clearance
three Temperature
as well substantial
(one) Oil in tank is too considerably, too
thick or also dirty
(two) CZPT or silencer is blocked
(three)The pressure is larger than
the specified value
(four)Too much wear of the
impeller, large gap
(five)Very poor ventilation, indoor
temperature is substantial, resulting in
inlet air’s higher temperature
(six) The rotating pace is way too minimal,outcome in the belt slipping.
(1)Lessen the oil amount or rely on
(2)Eliminate of blocking objects
(three)Lowering the strain by means of
the blower
(four)Mend its clearance
(5)Open vents to minimize room
(six) Boost velocity to avoid the
belt slipping.
4 Insufficient
(one) The inlet filter is blocked
(two) Impeller put on and the gap
increases too a lot
(3) Belt slipping
(four) Massive imports force decline
(five) Pipeline air flow leakage
(one) Clean the filter dust and
(2) Fix the gap
(three)Tighten the belt and boost
the amount of belts
(4)Modify the inlet stress to the
specified worth
(five) Check out and fix the pipeline
5 Oil leaking or
oil leaking
into the enclosure
(one)Large tank position result in
leakage from the discharge port
(2) Seal wear, resulting in shaft oil spills
(3) The strain is increased than
the specified benefit

(1)Minimize the oil stage
(2)Change the seals
(three)Very clear the air vents, 2mm diameter faucet is mounted in the
center chamber, open the faucet
beneath the wall
six Irregular
vibration and
(1)Bearing clearance exceeds the
specified value or bearing use
(2) The gear backlash is way too
huge, not in a restricted fastened
(three) The overseas 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,
(5) Friction between the impeller
and the inlet housing induced by
(6) Unbalance of the impeller
caused by fouling or overseas
human body
(7) Anchor bolts or other
fasteners are loosened
(one)Change bearings or bearing
(2)Reassemble equipment and ensure
(three)Cleaning blower, verify the
situation is destroyed
(four)Examine the back pressure, examine
the wheel and adjust gap
(5)Examine the filter and again
force, improve the hole
in between the impeller inlet and the
(6)Clear the impeller and the
casing, to make sure that the impeller
clearance work
(seven) Tighten the anchor bolts and
leveling the base.
seven Motor
(one)Compared with the required
pressure, the force big difference
is huge that the again strain or
the inlet force is high
(two) In contrast with the
gear needs, blower
movement is also large, so its stress
(three)Inlet filter is blocked, or outlet
pipe is obstructed or blocked
(4) Collusion or friction (caught)
rotating elements
(5) The oil level is too higher
(6) Slender V-belt is overheat,
vibration is also large, or pulley
is way too little
(1) Reduce the stress to the
specified price
(two) Exhaust the surplus fuel into
the environment or minimize the
blower pace
(3) Take away the obstructions
(four)Instantly shut down, verify
the purpose
(five) Adjust the oil to the proper
(six) Check the belt pressure, and
changed it with big diameter

Our Service

one. Pre sell service                                                                              2. Right after offer service                                          
a. suggest the appropriate model                                             c. online technological assist,                                                                                   
b. factory tour                                                                              d. total existence CZPT and techinical assist


twelve months gurantee for our roots blowers

Elt-65 High Efficiency Low Engergy Roots Vacuum Pump