Anti Corrosion High Efficiency Roots Vacuum Pump

Anti Corrosion High Efficiency Roots Vacuum Pump

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

Sort Diameter Charge of flow Pressure
ESR-MJ(Intensive Variety) Φ50~Φ300mm .5~140m³/min nine.8KPa~ninety eight.8Kpa
ESR(Normal Variety) Φ50~Φ350mm .5~140m³/min nine.8KPa~78.4Kpa
ESR-H(Large-pressure Variety) Φ50~Φ350mm .7~160m³/min fifty eight.8KPa~98.8Kpa
ESR-V(Vacuum Pump) Φ50~Φ350mm .5~160m³/min nine.8KPa~53.3Kpa
EL Collection Φ200~Φ600mm 20.3~750m³/min 9.8KPa~fifty eight.8Kpa
Multistage Centrifugal Blower
or C-Series
Φ250~Φ500mm 50~500m³/min nine.8KPa~98Kpa
ERR-ERG Variety Φ250~Φ500mm one hundred twenty~420m³/min nine.8KPa~ninety eight.8Kpa

The functioning theory 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 the two sides of the cavity. By way of 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 fuel in the chamber is pushed to achieve the
purpose of blowing.

Feature of our roots blower:
1. Big adjustment of the air volume
2. Lower Noise
3. Substantial efficiency
four. Low strength cosumption
five. Prolonged time daily life
six. Trustworthy running, easy maintenance,modest footprint

The parameters of our roots blower:

Variety Ratary Velocity
Pressure Rise
Shaft Electrical power
Motor Device Maximn
Excess weight(Kg)
Electrical power
ESR-50 1100-2120 nine.8-58.eight .65-2.fifty eight .three-3.fifty four .75-four 128-158
ESR-sixty five 1100-2130 nine.8-58.8 .ninety four-three.sixty six .38-4.46 .75-5.5 a hundred and fifty five-185
ESR-80 1140-1900 9.8-58.eight two.34-5.forty three 1.04-seven.42 two.two-11 155-277
ESR-a hundred 1060-1980 nine.eight-58.8 4.57-9.05 1.35-twelve.15 3-15 309-377
ESR-a hundred twenty five 980-1850 nine.8-fifty eight.eight 5.35-12.4 1.65-five.19 5.5-18.five 408-451
ESR-125C 970-1830 nine.8-fifty eight.8 7.five-seventeen.57 three.two-18.five 4-22 408-451
ESR-150 810-1730 9.eight-58.8 ten.37-27.fifteen three.84-40.eighty two seven.five-forty five 688-848
ESR-one hundred seventy five 970-1520 nine.eight-fifty eight.eight 19.sixty five-36.65 seven.two-forty five.95 11-fifty five 980-1080
ESR-200B 740-1450 9.eight-fifty eight.eight 19.65-forty four.8 10.15-60.44 15-75 1272-1546
ESR-two hundred 810-1480 nine.8-fifty eight.8 27.sixty five-fifty nine.2 eight.05-80,12 fifteen-ninety 1272-1546
ESR-250B 1100-1480 nine.8-58.eight fifty four.seventy seven-seventy seven.55 19.97-90.97 thirty-110 1490-2454
ESR-250 990-1480 nine.8-fifty eight.8 61.four-ninety seven.fifty two twenty.1-117.three thirty-132 1490-2454
ESR-300 990-1480 nine.eight-58.eight 87.1-138.1 26.4-167.8 37-185 3326-3446
ESR-350 730-1480 nine.8-fifty eight.eight 78.forty one-177.31   fifty five-250  
ESR-50H 1230-2120 sixty three.7-ninety eight .45-two.02 two.05-6.twelve three-7.5 160–170
ESR-65H 1240-2130 .78-two.53 2.89-7.55 four-11 198-230
ESR-80H 1140-1900 sixty three.7-98 1.eighty two-4.55 4.09-ten.1 5.five-fifteen 316-326
ESR-100H 1060-1980 sixty three.7-98 two.65-8.06 six.36-17.2 seven.5-22 398-459
ESR-125H 980-1850 sixty four.64-eleven.23 eight.92-24.2 eleven-thirty 544-630
ESR-150H 810-1730 sixty eight nine.fifty three-twenty five.seventy six 17.sixteen-65 eighteen.five-seventy five 752-1571
ESR-200H 810-1480 63.7-98 twenty five.34-56.92 forty two.34-a hundred and twenty fifty five-132 1426-1934
ESR-250H 990-1480 sixty three.7-ninety eight eighty three.two-205 90-220 2980-3468
ESR300H 990-1480 eight 86.nine-134.1 114.7-270 132-280 3476-3998
ERF-245 650-980 nine.eight-ninety eight 47.five-ninety seven.four sixteen-183 18.five-200 3630-3690
ERF-250 650-980 nine.8-ninety eight sixty one.6-a hundred and twenty.4 19-227 22-250 4450-4500
ERF-290 650-980 9.eight-seventy eight.four 92.3-128 22-213 30-250 4890-4710
ERF-295 650-980 9.8-78.four ninety seven.three-152.five 23-227 30-250 4890-4880
ERF-297 650-980 9.eight-78.4 87.five-167.six 26-249 30-280 5330-5520
ERF-300 650-980 9.eight-78.4 one hundred and one.5-188.7 29-278 37-315 5330-5520
ERF-350 650-980 nine.eight-seventy eight.four 126-224.nine 34-249 45-280 5210-6470
ERG-three hundred 590-730 9.8-98 128.3-196 38-362 45-four hundred 9440-15710
ERG-350 590-730 nine.eight-ninety eight 159.3-231.six 43-420 fifty five-450 9700-1571
ERG-four hundred 590-730 nine.eight-eighty three.three 203.1-290.9 52-449 75-500 10090-11390
ERG-445 590-730 nine.eight-seventy three.five 229.7-327.8 58-477 75-560 10600-12230
ERG-450 590-730 9.eight-73.five 262.4-366.2 sixty four-496 75-560 10600-12230
ERG-500 590-730 9.eight-sixty 327.4-452.4 78-529 ninety-560 12790-14620
ERF-240-V 650-980 -nine.8- -49 13-seventy six 18.five-90 3420-3285
ERF-245-V 650-980 -9.eight- -49 forty seven.five-ninety seven.four 16-ninety five 22-110 3425-3360
ERF-250-V 650-980 -nine.8- -49 63-120 19-117 22-132 3910-3830
ERF-290-V 650-980 -9.eight- -forty nine seventy two.6-one hundred forty four 22-136 30-160 4415-4270
ERF-295-V 650-980 -9.8- -forty nine 76.6-152 23-one hundred forty five thirty-one hundred sixty 4425-4485
ERF-297-V 650-980 -9.eight- -forty nine eighty four.three-166.eight 26-160 30-one hundred eighty 5000-4980
ERF-300-V 650-980 -nine.eight- -forty nine 97-192 29-178 37-200 5000-4980
ERF-350-V 650-980 -nine.eight- -49 116-225 34-209 forty five-250 5400-5700
ERG-300V 590-730 -nine.eight- -49 133-193 38-184 forty five-220 7800-9100
ERG-350V 590-730 -nine.8- -forty nine 163-231 forty three-216 fifty five-250 9500-9470
ERG-400V 590-730 -9.8- -49 199-290 52-269 seventy five-315 9900-10130
ERG-445V 590-730 -9.eight- -forty nine 224.8-326.9 58-303 75-355 9900-10130
ERG-450V 590-730 -9.eight- -49 255-365 sixty four-335 seventy five-four hundred 11230-11300
ERG-500V 590-730 -9.8- -forty nine 314-452 seventy eight-412 132-450 13630-13850
ERF-245W 650-980 -13.three- -fifty three.3 fifty three.5-one zero one 21.five-102 30-110 3630-3360
ERF-250W 650-980 -13.three- -fifty three.three 69-127 26.five-127 thirty-one hundred sixty 3985-4115
ERF-290W 650-980 -13.three- -53.3 82.6-150 thirty.five-149 37-185 4340-4580
ERF-295W 650-980 -thirteen.three- -fifty three.three 87-158 32-158 37-185 4440-4580
ERF-297W 650-980 -13.3- -53.3 95-174 36-174 45-two hundred 5230-5130
ERF-300W 650-980 -13.three- -fifty three.three 109-195 forty-193 55-220 5230-5130
ERF-350W 650-980 -thirteen.three- -53.3 129-230 50-230 75-250 5840-5670
ERG-300W 590-730 -thirteen.3- -fifty three.three 142-197 52-201 75-220 9100-9000
ERF-350W 590-730 -13.three- -53.three 168-234.four 59-235.five 75-280 9500-9600
ERG-400W 590-730 -thirteen.three- -53.three 220-276.6 seventy one-292 90-315 9900-10130
ERG-445W 590-730 -13.3- -fifty three.three 244-294.6 eighty two-331 ninety-four hundred 11230-11300
ERG450W 590-730 -13.3- -fifty three.three 275-368.5 91-366 a hundred and ten-four hundred 11230-11300
650-980 98-196 64.eight-112 135-355 one hundred sixty-four hundred 8700-8600
650-980 ninety eight-196 eighty.8-139 167-439 185-five hundred 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
(three hundred,400)
590-740 ninety eight-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 -53.3–eighty seventy two-121 75.6-121 ninety-a hundred and sixty 6100-6470
650-980 -fifty three.3–80 93.8-154 99.five-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 9.eight-fifty eight.eight fifty four.two-one hundred thirty eighteen-151 forty five-185 3595
EL82WDB 580-980 nine.eight-fifty eight.eight seventy two.8-161 22-191 45-220 3860
EL83WDA 580-980 nine.8-58.nine 101-213 28.five-202 forty five-220 4300
EL84WDA 580-980 nine.8-58.eight 129-267 35.four-252 45-280 4720
EL93WDA 580-730 9.8-49 230-329 fifty six.4-311 seventy five-355 7765
EL94WDA 580-730 9.eight-forty nine 263-373 sixty four-353 seventy five-four hundred 8130
EL95WDA 490-580 9.eight-fifty eight.eight 308-434 eighty one.4-414 90-450 11500
EL96WDA 580 fifty eight.eight 381 497 560 11500
E397WN a thousand-1650 40 5-nine      
E408WN 870-1650 40 ten-22      
E517WN 980-1580 40 twenty-30      
E520WN 930-1550 forty 24-45      
E607WN 750-1250 40 45-seventy six      
E610WN 750-1250 40 75-one hundred thirty      

Spare components and framework of our roots blower:

Bundle of our Roots Blower

Pack into iron scenario, two layer,blower physique and motor in reduce layer, inlet/out silencer and so on in upper layer

Roots blower pack strategy very same as iron situation, just alter to Fumigation Cost-free Plywood Circumstance

Our manufacturing unit is a professional company of Roots blowers which has above twenty years’ experience in equipment
production. It is found in Xihu (West Lake) Dis. CZPT CZPT Park, fifty kilometers to the east of ZheJiang provincial
funds— HangZhou. Our company also has hassle-free traffic transportation, as it is fifteen kilometers absent from
Diaozhen City station of HangZhou-HangZhou expressway, and 30 kilometers absent from CZPT HangZhou station of
ZheJiang -ZheJiang expressway.The leading product of our business is ESR -variety Roots Blower. The roots
vacuum pump is a new kind of substantial-efficiency roots blower, which is designed independently dependent on the
domestic and foreign innovative technologies. Many patented technologies have been adopted on Roots
Blower, and as a result we have made important outcomes in strength conservation and noise reduction, etc.. So considerably, our
firm has invested a lot more than thirty,000,000 RMB to introduce this kind of innovative expert tools as
horizontal machining centre, vertical machining middle, two-way CNC surface area planer, CNC lathe, CNC milling
machine, CNC planer, aircraft grinder, cylindrical grinding equipment, and three coordinates tests machine.
Besides, we have taken a variety of steps to CZPTize the process movement this kind of as functioning and cooperating
with several scientific research units, faculties and universities at house and abroad. We also repeatedly consider to
take up and boost the domestic advanced manufacturing technologies, so as to market the upgrading and
optimization of the item and make the solution top quality achieve the advanced degree at home and overseas.
ESR -type Roots Blower involves several collection these kinds of as Three-leaves Sort, Two-leaves Type and Centrifugal
Kind,which can be even more divided to hundreds of kinds. The products are commonly used in sewage remedy,
pneumatic conveying,vacuum packaging, aquaculture, food processing, electric power, petrochemical, cement,
mining and other industries. Our merchandise have these kinds of advantages as reduced sounds, energy preserving, stable high quality,
and lengthy service lifestyle, and so forth.. With the revenue outlets throughout the domestic cash metropolitan areas, our items promote well all
above the nation, 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
recognized and enhanced the quality assurance of the goods creating, production, and set up.
From the method of design, analysis and advancement to the completed products, we have obtained the whole
method controlled independently, thus supplying the full basis and trustworthiness guarantee for the products stability
and toughness. Obtaining a perfect revenue community and soon after-product sales services, we give our clients with increased-
high quality and far more efficient provider.All staff of our organization sincerely welcome the broad masses of buddies to
guide, and negotiate business with us.

Our Roots Blower Workshop

         Doosn Horzitonal CZPT Centre

The Software of the Roots Blower

Routine maintenance and inspection
(one) Check all fasteners and finding pins situations whether they are loosening.
(2) Constantly check out no matter whether the leakage phenomenon of the human body.
(3) Shell out attention to lubrication, quantity of grease and noises when managing,
figure out regardless of whether it works under the needed conditions.
(4) 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 position ≥
190ºC). Exchange the lubricant and grease following initial two hundred hrs running, and replace
yet again soon after a moth running. Later on, exchange the lubricant and grease according to the
atmosphere and lubricant (grease) good quality suggest a ideal substitute for 3
(five) Always check the inlet air filter, clean or exchange the filter in time.
(six) Blower overload often not instantly shown, so pay focus to
the ingestion and exhaust stress, bearing temperature and the current boost traits
of motor to figure out no matter whether the blower functions generally
(seven) Just before disassembling the blower, the assembling relation and proportions
need to be recorded or measured, make marks on components to make sure the CZPT
demands right after assembling.
(8) When recently equipment or overhaul, the oil tank ought to be cleaned ahead of use
and suggest replace all grease after 8 several hours running.

Common failure reason and troubleshooting

No Failure Possible causes Elimination methods
1 Friction
in between the
(1) Impurities on the impeller,
resulting in the gap is also small
(2) Gear put on, resulting in a
big backlash
(3) The equipment is not nicely mounted,
can not maintain the impeller
(four) Bearing wear resulting in
clearance escalating.
(one) Eliminate dust and check out
whether there is harm components
(two) Modify the gear hole, substitute
the gears if the gear backlash is
higher than the regular 30% to
(3)Re-assemble the gears, preserve
the taper make contact with location is to 75%
(four)Change the bearing
2 Collision
impeller and
wall, the
impeller leading
and casing
(1) Installation gap is not right
(two) working pressure is as well
higher, exceeding the specified
(three) Operating temperature is also large
(4) Casing or base deformation,
positioning supporter failure
(5) Bearing axial area is not good
(1) Change the hole
(two) Recognize brings about of
overloading, diminished the force
to the specified price
(3) Check out the installation
accuracy and lessen the pipe
(4) Check out and restore bearings,
and to make sure the clearance
3 Temperature
as well higher
(one) Oil in tank is too a lot, as well
thick or too dirty
(2) CZPT or silencer is blocked
(three)The strain is greater than
the specified value
(4)Excessive dress in of the
impeller, large hole
(5)Inadequate ventilation, indoor
temperature is high, ensuing in
inlet air’s substantial temperature
(six) The rotating speed is too minimal,consequence in the belt slipping.
(1)Lessen the oil level or rely on
(2)Get rid of of blocking objects
(3)Decreasing the strain by means of
the blower
(four)Mend its clearance
(five)Open vents to lessen space
(six) Boost speed to stop the
belt slipping.
four Inadequate
(1) The inlet filter is blocked
(2) Impeller wear and the gap
increases also a lot
(3) Belt slipping
(four) Massive imports stress loss
(five) CZPT ventilation leakage
(one) Thoroughly clean the filter dust and
(2) Restore the hole
(3)Tighten the belt and enhance
the amount of belts
(4)Modify the inlet strain to the
specified benefit
(5) Check and mend the pipeline
five Oil leaking or
oil leaking
into the enclosure
(1)Substantial tank situation cause
leakage from the discharge port
(two) Seal put on, resulting in shaft oil spills
(3) The pressure is higher than
the specified benefit

(1)Minimize the oil stage
(2)Replace the seals
(3)Very clear the air vents, 2mm diameter faucet is set in the
center chamber, open the faucet
below the wall
six Abnormal
vibration and
(1)Bearing clearance exceeds the
specified price or bearing put on
(two) The equipment backlash is too
big, not in a restricted set
(three) The overseas objects and dust
triggered by the impeller and the
impeller, the impeller and the
housing collision
(4) the impeller shaft
deformation brought on the collision
caused by overload,
(five) Friction amongst the impeller
and the inlet housing triggered by
(six) Unbalance of the impeller
brought on by fouling or foreign
(seven) CZPT bolts or other
fasteners are loosened
(one)Exchange bearings or bearing
(2)Reassemble equipment and guarantee
(3)Cleansing blower, examine the
scenario is destroyed
(four)Check the again strain, verify
the wheel and change gap
(five)Check out the filter and back again
force, increase the hole
amongst the impeller inlet and the
(6)Thoroughly clean the impeller and the
casing, to make sure that the impeller
clearance operate
(7) Tighten the anchor bolts and
leveling the base.
seven Motor
(one)When compared with the essential
strain, the strain variation
is big that the again strain or
the inlet stress is high
(2) Compared with the
tools specifications, blower
flow is way too large, so its force
(3)Inlet filter is blocked, or outlet
pipe is obstructed or blocked
(four) Collusion or friction (stuck)
rotating components
(5) The oil degree is also higher
(6) Slender V-belt is overheat,
vibration is as well huge, or pulley
is way too small
(one) Reduce the pressure to the
specified benefit
(2) Exhaust the extra gas into
the environment or reduce the
blower speed
(three) Get rid of the obstructions
(four)Quickly shut down, check
the cause
(five) Adjust the oil to the proper
(6) Check out the belt rigidity, and
replaced it with massive diameter

Our Support

one. Pre sell service                                                                              two. Following promote service                                          
a. advise the ideal model                                             c. on the internet technical assist,                                                                                   
b. manufacturing unit tour                                                                              d. whole lifestyle spare elements and techinical help


12 months gurantee for our roots blowers

Anti Corrosion High Efficiency Roots Vacuum Pump