High Efficiency Lowe Energy Roots Vacuum Pump for Nitrogen Transport

High Efficiency Lowe Energy Roots Vacuum Pump for Nitrogen Transport

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

Variety Diameter Price of circulation Stress
ESR-MJ(Intense Sort) Φ50~Φ300mm .five~140m³/min nine.8KPa~98.8Kpa
ESR(Ordinary Kind) Φ50~Φ350mm .5~140m³/min nine.8KPa~78.4Kpa
ESR-H(Substantial-force Kind) Φ50~Φ350mm .seven~160m³/min fifty eight.8KPa~ninety eight.8Kpa
ESR-V(Vacuum Pump) Φ50~Φ350mm .5~160m³/min nine.8KPa~53.3Kpa
EL Collection Φ200~Φ600mm 20.three~750m³/min nine.8KPa~fifty eight.8Kpa
Multistage Centrifugal Blower
or C-Series
Φ250~Φ500mm 50~500m³/min nine.8KPa~98Kpa
ERR-ERG Sort Φ250~Φ500mm one hundred twenty~420m³/min 9.8KPa~ninety eight.8Kpa

The operating theory 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 equally sides of the cavity. Via the motion of a pair of
synchronous gears, the two rotors rotate in reverse directions 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 attain the
function of blowing.

Characteristic of our roots blower:
one. Large adjustment of the air quantity
2. Minimal Noise
3. Large effectiveness
4. Lower vitality cosumption
5. Extended time life
6. Reputable managing, straightforward maintenance,tiny footprint

The parameters of our roots blower:

Sort Ratary Speed
Pressure Increase
Shaft Electrical power
Motor Unit Maximn
ESR-fifty 1100-2120 9.eight-58.eight .65-two.fifty eight .three-three.54 .75-four 128-158
ESR-sixty five 1100-2130 9.eight-fifty eight.eight .94-three.sixty six .38-four.forty six .75-five.5 a hundred and fifty five-185
ESR-80 1140-1900 9.eight-fifty eight.eight two.34-five.43 1.04-seven.forty two 2.2-11 155-277
ESR-one hundred 1060-1980 nine.8-58.8 4.fifty seven-9.05 1.35-twelve.15 3-15 309-377
ESR-125 980-1850 9.8-fifty eight.eight 5.35-twelve.4 1.65-five.19 5.5-18.5 408-451
ESR-125C 970-1830 9.eight-fifty eight.eight 7.5-seventeen.fifty seven 3.two-eighteen.5 four-22 408-451
ESR-one hundred fifty 810-1730 nine.8-58.8 ten.37-27.fifteen three.eighty four-40.eighty two 7.5-45 688-848
ESR-175 970-1520 nine.8-58.eight 19.sixty five-36.sixty five seven.two-45.95 eleven-fifty five 980-1080
ESR-200B 740-1450 nine.eight-fifty eight.8 19.sixty five-44.eight ten.fifteen-sixty.forty four fifteen-seventy five 1272-1546
ESR-two hundred 810-1480 9.eight-fifty eight.eight 27.sixty five-59.two eight.05-eighty,12 fifteen-ninety 1272-1546
ESR-250B 1100-1480 nine.8-58.8 fifty four.77-77.55 19.97-90.97 30-110 1490-2454
ESR-250 990-1480 9.8-58.eight 61.four-ninety seven.52 20.1-117.3 30-132 1490-2454
ESR-300 990-1480 nine.eight-58.eight 87.one-138.one 26.4-167.eight 37-185 3326-3446
ESR-350 730-1480 nine.eight-fifty eight.8 78.forty one-177.31   fifty five-250  
ESR-50H 1230-2120 63.seven-98 .forty five-2.02 two.05-six.12 3-7.five a hundred and sixty–170
ESR-65H 1240-2130 63.seven-98 .seventy eight-two.fifty three two.89-7.55 four-eleven 198-230
ESR-80H 1140-1900 63.7-98 1.eighty two-4.fifty five 4.09-ten.1 five.five-fifteen 316-326
ESR-100H 1060-1980 63.seven-98 two.65-8.06 6.36-17.two seven.5-22 398-459
ESR-125H 980-1850 63.7-98 four.64-eleven.23 eight.92-24.2 11-30 544-630
ESR-150H 810-1730 sixty three.7-98 nine.53-twenty five.76 17.16-sixty five 18.5-75 752-1571
ESR-200H 810-1480 sixty three.7-ninety eight twenty five.34-56.92 forty two.34-a hundred and twenty fifty five-132 1426-1934
ESR-250H 990-1480 63.seven-98 58-ninety three.7 83.2-205 90-220 2980-3468
ESR300H 990-1480 63.7-ninety eight 86.nine-134.one 114.7-270 132-280 3476-3998
ERF-245 650-980 9.eight-98 forty seven.5-97.4 sixteen-183 eighteen.five-two hundred 3630-3690
ERF-250 650-980 9.8-98 61.six-a hundred and twenty.four 19-227 22-250 4450-4500
ERF-290 650-980 9.eight-seventy eight.4 92.3-128 22-213 thirty-250 4890-4710
ERF-295 650-980 nine.8-seventy eight.four 97.3-152.5 23-227 thirty-250 4890-4880
ERF-297 650-980 nine.eight-seventy eight.four 87.five-167.6 26-249 thirty-280 5330-5520
ERF-300 650-980 9.8-78.4 101.5-188.7 29-278 37-315 5330-5520
ERF-350 650-980 nine.8-78.4 126-224.9 34-249 45-280 5210-6470
ERG-300 590-730 9.eight-98 128.3-196 38-362 forty five-four hundred 9440-15710
ERG-350 590-730 9.eight-98 159.3-231.6 forty three-420 55-450 9700-1571
ERG-400 590-730 nine.eight-83.3 203.1-290.9 fifty two-449 75-five hundred 10090-11390
ERG-445 590-730 9.8-73.five 229.7-327.8 fifty eight-477 seventy five-560 10600-12230
ERG-450 590-730 nine.eight-seventy three.5 262.four-366.two 64-496 seventy five-560 10600-12230
ERG-five hundred 590-730 nine.eight-63.seven 327.4-452.4 seventy eight-529 ninety-560 12790-14620
ERF-240-V 650-980 -9.eight- -forty nine 38.1-78 13-76 18.five-90 3420-3285
ERF-245-V 650-980 -nine.8- -49 47.5-ninety seven.four 16-ninety five 22-one hundred ten 3425-3360
ERF-250-V 650-980 -9.eight- -49 63-a hundred and twenty 19-117 22-132 3910-3830
ERF-290-V 650-980 -nine.8- -forty nine seventy two.six-one hundred forty four 22-136 thirty-160 4415-4270
ERF-295-V 650-980 -nine.eight- -49 76.six-152 23-145 thirty-a hundred and sixty 4425-4485
ERF-297-V 650-980 -nine.eight- -49 84.3-166.8 26-one hundred sixty 30-180 5000-4980
ERF-300-V 650-980 -9.8- -forty nine 97-192 29-178 37-200 5000-4980
ERF-350-V 650-980 -nine.8- -49 116-225 34-209 forty five-250 5400-5700
ERG-300V 590-730 -9.eight- -forty nine 133-193 38-184 45-220 7800-9100
ERG-350V 590-730 -9.eight- -forty nine 163-231 forty three-216 55-250 9500-9470
ERG-400V 590-730 -nine.eight- -49 199-290 fifty two-269 75-315 9900-10130
ERG-445V 590-730 -9.8- -49 224.eight-326.nine fifty eight-303 75-355 9900-10130
ERG-450V 590-730 -9.8- -49 255-365 64-335 seventy five-four hundred 11230-11300
ERG-500V 590-730 -9.eight- -49 314-452 seventy eight-412 132-450 13630-13850
ERF-245W 650-980 -13.3- -53.three fifty three.five-one zero one 21.5-102 30-110 3630-3360
ERF-250W 650-980 -13.three- -fifty three.3 sixty nine-127 26.five-127 30-one hundred sixty 3985-4115
ERF-290W 650-980 -thirteen.three- -53.3 82.six-a hundred and fifty 30.five-149 37-185 4340-4580
ERF-295W 650-980 -13.3- -fifty three.three 87-158 32-158 37-185 4440-4580
ERF-297W 650-980 -13.3- -fifty three.3 ninety five-174 36-174 forty five-two hundred 5230-5130
ERF-300W 650-980 -thirteen.3- -53.3 109-195 forty-193 55-220 5230-5130
ERF-350W 650-980 -thirteen.3- -53.3 129-230 50-230 75-250 5840-5670
ERG-300W 590-730 -13.three- -53.3 142-197 fifty two-201 seventy five-220 9100-9000
ERF-350W 590-730 -13.3- -53.three 168-234.4 fifty nine-235.five 75-280 9500-9600
ERG-400W 590-730 -thirteen.three- -53.3 220-276.six 71-292 90-315 9900-10130
ERG-445W 590-730 -13.3- -53.3 244-294.six 82-331 90-four hundred 11230-11300
ERG450W 590-730 -thirteen.three- -53.3 275-368.5 ninety one-366 one hundred ten-four hundred 11230-11300
650-980 ninety eight-196 64.8-112 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
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
ETRG-four hundred
590-740 98-176.four 205-273 380-773 450-900 21350-24200
590-740 98-176.four 263-428 476-955 560-one thousand 24200-27600
650-980 -fifty three.3–eighty seventy two-121 seventy five.6-121 90-a hundred and sixty 6100-6470
650-980 -53.3–eighty ninety three.8-154 99.5-186 one hundred ten-220 7000-6400
(2505/three hundred)
650-980 -fifty three.three–eighty 116-189 a hundred and fifteen-220 132-250 7750-7760
EL81WD 580-980 9.eight-fifty eight.eight fifty four.two-a hundred thirty eighteen-151 45-185 3595
EL82WDB 580-980 9.eight-fifty eight.8 seventy two.8-161 22-191 45-220 3860
EL83WDA 580-980 nine.eight-fifty eight.9 a hundred and one-213 28.five-202 45-220 4300
EL84WDA 580-980 nine.8-58.8 129-267 35.four-252 45-280 4720
EL93WDA 580-730 nine.eight-49 230-329 fifty six.four-311 75-355 7765
EL94WDA 580-730 nine.eight-forty nine 263-373 sixty four-353 75-400 8130
EL95WDA 490-580 9.8-58.eight 308-434 81.four-414 ninety-450 11500
EL96WDA 580 fifty eight.eight 381 497 560 11500
E397WN one thousand-1650 forty 5-nine      
E408WN 870-1650 40 10-22      
E517WN 980-1580 forty 20-thirty      
E520WN 930-1550 40 24-45      
E607WN 750-1250 forty 45-76      
E610WN 750-1250 40 75-130      

Spare components and framework of our roots blower:

Package deal of our Roots Blower

Pack into iron circumstance, two layer,blower body and motor in lower layer, inlet/out silencer and so on in higher layer

Roots blower pack approach same as iron case, just change to Fumigation Totally free Plywood Circumstance

Our factory is a professional maker of Roots blowers which has more than twenty years’ experience in equipment
production. It is situated in Xihu (West Lake) Dis. East CZPT Park, fifty kilometers to the east of ZheCZPT provincial
cash— HangCZPT. Our business also has practical traffic transportation, as it is fifteen kilometers absent from
Diaozhen Town station of HangCZPT-HangCZPT expressway, and 30 kilometers away from East HangCZPT station of
ZheCZPT -ZheCZPT expressway.The major item of our business is ESR -sort Roots Blower. The roots
vacuum pump is a new type of higher-performance roots blower, which is developed independently primarily based on the
domestic and overseas innovative technologies. Numerous patented technologies have been adopted on Roots
Blower, and hence we have produced considerable effects in strength conservation and noise reduction, and so forth.. So considerably, our
firm has invested far more than 30,000,000 RMB to introduce this sort of sophisticated professional tools as
horizontal machining middle, vertical machining centre, two-way CNC surface planer, CNC lathe, CNC milling
machine, CNC planer, aircraft grinder, cylindrical grinding machine, and three coordinates screening machine.
Apart from, we have taken numerous measures to standardize the process stream such as operating and cooperating
with a lot of scientific research units, colleges and universities at home and abroad. We also repeatedly try to
take up and boost the domestic sophisticated manufacturing systems, so as to market the upgrading and
optimization of the solution and make the product high quality get to the superior level at house and overseas.
ESR -type Roots Blower involves numerous series such as A few-leaves Variety, Two-leaves Type and Centrifugal
Sort,which can be additional divided to hundreds of kinds. The merchandise are widely utilized in sewage remedy,
pneumatic conveying,vacuum packaging, aquaculture, meals processing, electrical energy, petrochemical, cement,
mining and other industries. Our items have this kind of rewards as minimal sounds, strength preserving, stable good quality,
and long support daily life, and so on.. With the income outlets throughout the domestic cash towns, our items promote nicely all
more than the place, and have been exported to North America,Russia, Malaysia, Indonesia, Vietnam, South Africa
and some other countries. Possessing obtained the ISO9001 CZPT High quality Technique Certification, we have
proven and improved the top quality assurance of the merchandise creating, production, and installation.
From the process of design and style, investigation and improvement to the concluded merchandise, we have received the total
process controlled independently, thus providing the full foundation and reliability ensure for the goods balance
and toughness. Having a perfect product sales community and after-product sales provider, we offer our customers with higher-
quality and much more productive services.All employees of our business sincerely welcome the broad masses of close friends to
guidebook, and negotiate enterprise with us.

Our Roots Blower Workshop

         Doosn Horzitonal Equipment Centre

The Software of the Roots Blower

Routine maintenance and inspection
(1) Verify all fasteners and finding pins situations whether or not they are loosening.
(2) Usually check out regardless of whether the leakage phenomenon of the physique.
(3) Shell out consideration to lubrication, sum of grease and noises when managing,
establish regardless of whether it performs underneath the essential problems.
(4) Lubricant & grease: The lubricant is for medium load industrial equipment oil
(quality 220, kinematic viscosity of 198 ~ 242mm2 / s 40ºC, flash position ≥ 200ºC)
The grease is butter (synthetic lithium grease penetration 220-250, drop stage ≥
190ºC). Replace the lubricant and grease after 1st two hundred several hours working, and change
once more right after a moth running. Later, replace the lubricant and grease according to the
setting and lubricant (grease) top quality suggest a suited alternative for a few
(five) Usually examine the inlet air filter, clear or exchange the filter in time.
(6) Blower overload often not immediately shown, so shell out focus to
the ingestion and exhaust force, bearing temperature and the existing boost trends
of motor to figure out no matter whether the blower operates usually
(seven) Ahead of disassembling the blower, the assembling relation and dimensions
should be recorded or measured, make marks on components to ensure the CZPT
requirements after assembling.
(eight) When freshly device or overhaul, the oil tank ought to be cleaned ahead of use
and propose substitute all grease right after 8 several hours working.

Widespread failure reason and troubleshooting

No Failure Feasible motives Elimination methods
1 Friction
amongst the
(1) Impurities on the impeller,
ensuing in the gap is as well modest
(two) Equipment wear, ensuing in a
big backlash
(three) The gear is not effectively fixed,
can not maintain the impeller
(4) Bearing put on ensuing in
clearance escalating.
(1) Remove dirt and verify
whether there is damage areas
(two) Change the gear hole, replace
the gears if the equipment backlash is
better than the average thirty% to
(three)Re-assemble the gears, keep
the taper get in touch with spot is to seventy five%
(four)Exchange the bearing
2 Collision
impeller and
wall, the
impeller prime
and casing
(1) Set up gap is not appropriate
(2) operating stress is as well
higher, exceeding the specified
(three) Operating temperature is as well higher
(four) Casing or foundation deformation,
positioning supporter failure
(5) Bearing axial location is not great
(1) Change the hole
(2) Identify causes of
overloading, decreased the strain
to the specified price
(three) Check out the set up
precision and reduce the pipe
(four) Examine and restore bearings,
and to make sure the clearance
three Temperature
way too higher
(1) Oil in tank is way too significantly, way too
thick or way too filthy
(2) CZPT or silencer is blocked
(three)The pressure is increased than
the specified price
(4)Too much use of the
impeller, massive hole
(five)Inadequate ventilation, indoor
temperature is higher, resulting in
inlet air’s high temperature
(6) The rotating speed is way too lower,outcome in the belt slipping.
(1)Decrease the oil stage or count on
(2)Get rid of of blocking objects
(three)Reducing the pressure by way of
the blower
(four)Fix its clearance
(5)Open up vents to lessen space
(6) Improve speed to stop the
belt slipping.
4 Insufficient
(one) The inlet filter is blocked
(2) Impeller put on and the hole
boosts too considerably
(3) Belt slipping
(4) Massive imports stress decline
(5) Pipeline ventilation leakage
(1) Cleanse the filter dust and
(two) Mend the hole
(3)Tighten the belt and enhance
the amount of belts
(four)Alter the inlet strain to the
specified price
(five) Verify and fix the pipeline
5 Oil leaking or
oil leaking
into the enclosure
(one)High tank situation result in
leakage from the discharge port
(2) Seal use, resulting in shaft oil spills
(3) The stress is larger than
the specified value

(one)Minimize the oil amount
(two)Change the seals
(three)Very clear the air vents, 2mm diameter faucet is set in the
center chamber, open up the faucet
below the wall
6 Irregular
vibration and
(one)Bearing clearance exceeds the
specified price or bearing dress in
(two) The gear backlash is also
big, not in a tight mounted
(3) The foreign objects and dust
brought on by the impeller and the
impeller, the impeller and the
housing collision
(4) the impeller shaft
deformation triggered the collision
triggered by overload,
(5) Friction among the impeller
and the inlet housing triggered by
(6) Unbalance of the impeller
brought on by fouling or overseas
(seven) Anchor bolts or other
fasteners are loosened
(1)Replace bearings or bearing
(two)Reassemble equipment and make certain
(three)Cleansing blower, examine the
circumstance is damaged
(4)Verify the again stress, verify
the wheel and alter gap
(5)Check out the filter and again
pressure, improve the gap
in between the impeller inlet and the
(6)Clear the impeller and the
casing, to guarantee that the impeller
clearance function
(seven) Tighten the anchor bolts and
leveling the foundation.
7 Motor
(1)When compared with the needed
strain, the stress distinction
is big that the again stress or
the inlet pressure is higher
(2) Compared with the
equipment requirements, blower
flow is too big, so its strain
(3)Inlet filter is blocked, or outlet
pipe is obstructed or blocked
(four) Collusion or friction (caught)
rotating elements
(5) The oil amount is too high
(six) Slim V-belt is overheat,
vibration is too huge, or pulley
is way too tiny
(1) Decrease the strain to the
specified worth
(two) Exhaust the surplus fuel into
the environment or reduce the
blower pace
(three) Remove the obstructions
(4)Instantly shut down, verify
the explanation
(5) Change the oil to the appropriate
(six) Examine the belt rigidity, and
changed it with massive diameter

Our Service

one. Pre market service                                                                              2. After offer service                                          
a. advocate the suitable model                                             c. on the web complex help,                                                                                   
b. factory tour                                                                              d. complete existence CZPT and techinical assistance


twelve months gurantee for our roots blowers

High Efficiency Lowe Energy Roots Vacuum Pump for Nitrogen Transport