Anti Corrosion High Efficiency Roots Vacuum Pump for Pheumatic Transport

Anti Corrosion High Efficiency Roots Vacuum Pump for Pheumatic Transport

We make all kinds of roots blower, centrifugal blower, Our Principal products are as underneath:

Kind Diameter Fee of movement Force
ESR-MJ(Intense Type) Φ50~Φ300mm .five~140m³/min 9.8KPa~98.8Kpa
ESR(Regular Variety) Φ50~Φ350mm .5~140m³/min nine.8KPa~78.4Kpa
ESR-H(Higher-strain Kind) Φ50~Φ350mm .7~160m³/min fifty eight.8KPa~ninety eight.8Kpa
ESR-V(Vacuum Pump) Φ50~Φ350mm .5~160m³/min 9.8KPa~53.3Kpa
EL Sequence Φ200~Φ600mm twenty.3~750m³/min 9.8KPa~fifty eight.8Kpa
Multistage Centrifugal Blower
or C-Collection
Φ250~Φ500mm 50~500m³/min nine.8KPa~98Kpa
ERR-ERG Type 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. Through 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 gas in the chamber is pushed to attain the
function of blowing.

Attribute of our roots blower:
one. Big adjustment of the air quantity
2. Minimal Noise
3. Substantial effectiveness
four. Low vitality cosumption
5. Prolonged time existence
six. Dependable operating, effortless upkeep,small footprint

The parameters of our roots blower:

Kind Ratary Pace
Strain Increase
Shaft Electrical power
Motor Unit Maximn
Excess weight(Kg)
ESR-fifty 1100-2120 nine.eight-fifty eight.8 .65-2.58 .three-three.54 .seventy five-four 128-158
ESR-65 1100-2130 nine.8-fifty eight.8 .94-three.sixty six .38-4.forty six .75-5.five a hundred and fifty five-185
ESR-eighty 1140-1900 9.8-58.eight 2.34-five.43 1.04-7.42 2.2-eleven 155-277
ESR-a hundred 1060-1980 9.eight-58.8 4.fifty seven-9.05 one.35-12.15 three-fifteen 309-377
ESR-a hundred twenty five 980-1850 nine.eight-fifty eight.eight 5.35-12.4 one.sixty five-5.19 5.5-18.five 408-451
ESR-125C 970-1830 9.8-fifty eight.eight seven.5-17.fifty seven three.2-18.5 four-22 408-451
ESR-a hundred and fifty 810-1730 nine.eight-fifty eight.8 ten.37-27.fifteen three.eighty four-40.82 seven.five-45 688-848
ESR-a hundred seventy five 970-1520 9.8-fifty eight.eight 19.sixty five-36.sixty five seven.two-forty five.ninety five 11-fifty five 980-1080
ESR-200B 740-1450 9.8-58.eight 19.65-forty four.eight ten.fifteen-sixty.44 15-75 1272-1546
ESR-two hundred 810-1480 9.8-58.8 27.65-59.two eight.05-80,twelve fifteen-90 1272-1546
ESR-250B 1100-1480 nine.8-58.eight 54.77-seventy seven.55 19.ninety seven-90.ninety seven 30-a hundred and ten 1490-2454
ESR-250 990-1480 9.8-58.8 61.four-ninety seven.52 thirty-132 1490-2454
ESR-300 990-1480 9.eight-58.8 26.four-167.eight 37-185 3326-3446
ESR-350 730-1480 9.8-fifty eight.eight 78.41-177.31   55-250  
ESR-50H 1230-2120 .45-2.02 two.05-six.12 three-seven.5 one hundred sixty–one hundred seventy
ESR-65H 1240-2130 eight .seventy eight-two.fifty three 2.89-seven.fifty five four-11 198-230
ESR-80H 1140-1900 63.7-ninety eight one.eighty two-4.55 four.09-10.1 five.5-fifteen 316-326
ESR-100H 1060-1980 sixty 2.65-eight.06 six.36-17.two seven.5-22 398-459
ESR-125H 980-1850 sixty three.7-ninety eight 4.sixty four-eleven.23 eight.ninety two-24.2 eleven-thirty 544-630
ESR-150H 810-1730 sixty three.7-98 nine.53-twenty five.76 seventeen.sixteen-sixty five eighteen.five-75 752-1571
ESR-200H 810-1480 sixty 25.34-fifty six.ninety two 42.34-a hundred and twenty fifty five-132 1426-1934
ESR-250H 990-1480 sixty three.7-ninety eight 58-93.7 83.two-205 90-220 2980-3468
ESR300H 990-1480 sixty three.7-ninety eight 114.7-270 132-280 3476-3998
ERF-245 650-980 nine.8-ninety eight forty seven.five-ninety seven.four 16-183 eighteen.5-two hundred 3630-3690
ERF-250 650-980 nine.8-ninety eight sixty one.six-120.4 19-227 22-250 4450-4500
ERF-290 650-980 nine.8-seventy eight.four 92.three-128 22-213 thirty-250 4890-4710
ERF-295 650-980 nine.eight-78.four ninety seven.three-152.5 23-227 30-250 4890-4880
ERF-297 650-980 nine.8-78.four 87.5-167.six 26-249 thirty-280 5330-5520
ERF-three hundred 650-980 9.eight-78.four 101.5-188.7 29-278 37-315 5330-5520
ERF-350 650-980 9.8-78.4 126-224.9 34-249 45-280 5210-6470
ERG-three hundred 590-730 nine.8-ninety eight 128.three-196 38-362 forty five-four hundred 9440-15710
ERG-350 590-730 nine.8-98 159.three-231.six 43-420 fifty five-450 9700-1571
ERG-four hundred 590-730 nine.eight-83.three 52-449 75-five hundred 10090-11390
ERG-445 590-730 nine.eight-seventy three.five 58-477 75-560 10600-12230
ERG-450 590-730 nine.8-seventy three.five 262.4-366.2 sixty four-496 seventy five-560 10600-12230
ERG-500 590-730 nine.eight-sixty three.7 327.4-452.four seventy eight-529 90-560 12790-14620
ERF-240-V 650-980 -nine.eight- -forty nine 38.1-78 thirteen-76 eighteen.five-ninety 3420-3285
ERF-245-V 650-980 -nine.eight- -49 forty seven.5-97.4 16-95 22-110 3425-3360
ERF-250-V 650-980 -nine.8- -forty nine 63-one hundred twenty 19-117 22-132 3910-3830
ERF-290-V 650-980 -nine.eight- -forty nine seventy two.six-a hundred and forty four 22-136 thirty-160 4415-4270
ERF-295-V 650-980 -nine.eight- -forty nine seventy six.six-152 23-145 thirty-one hundred sixty 4425-4485
ERF-297-V 650-980 -9.8- -forty nine eighty four.3-166.eight 26-one hundred sixty 30-one hundred eighty 5000-4980
ERF-300-V 650-980 -9.eight- -49 ninety seven-192 29-178 37-two hundred 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 45-220 7800-9100
ERG-350V 590-730 -9.8- -49 163-231 forty three-216 55-250 9500-9470
ERG-400V 590-730 -nine.8- -49 199-290 fifty two-269 75-315 9900-10130
ERG-445V 590-730 -9.eight- -49 224.8-326.nine 58-303 seventy five-355 9900-10130
ERG-450V 590-730 -9.eight- -49 255-365 64-335 seventy five-four hundred 11230-11300
ERG-500V 590-730 -9.eight- -49 314-452 78-412 132-450 13630-13850
ERF-245W 650-980 -13.three- -fifty three.3 53.5-one hundred and one 21.5-102 30-a hundred and ten 3630-3360
ERF-250W 650-980 -thirteen.three- -53.three 69-127 26.5-127 30-160 3985-4115
ERF-290W 650-980 -thirteen.3- -53.three 82.6-150 30.five-149 37-185 4340-4580
ERF-295W 650-980 -thirteen.3- -53.3 87-158 32-158 37-185 4440-4580
ERF-297W 650-980 -thirteen.three- -fifty three.three 95-174 36-174 forty five-two hundred 5230-5130
ERF-300W 650-980 -13.3- -fifty three.3 109-195 forty-193 fifty five-220 5230-5130
ERF-350W 650-980 -13.three- -53.three 129-230 fifty-230 seventy five-250 5840-5670
ERG-300W 590-730 -13.three- -53.3 142-197 52-201 seventy five-220 9100-9000
ERF-350W 590-730 -thirteen.3- -53.3 168-234.four 59-235.5 75-280 9500-9600
ERG-400W 590-730 -13.3- -53.three 220-276.six 71-292 ninety-315 9900-10130
ERG-445W 590-730 -13.three- -fifty three.three 244-294.six 82-331 ninety-400 11230-11300
ERG450W 590-730 -thirteen.3- -53.three 275-368.5 ninety one-366 110-four hundred 11230-11300
650-980 ninety eight-196 sixty four.8-112 a hundred thirty five-355 160-four hundred 8700-8600
650-980 98-196 80.eight-139 167-439 185-500 9200-9100
ETRF-three hundred
650-980 ninety eight-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
(300,four hundred)
590-740 ninety eight-176.four 205-273 380-773 450-900 21350-24200
590-740 98-176.four 263-428 476-955 560-1000 24200-27600
650-980 -53.three–80 72-121 75.6-121 ninety-a hundred and sixty 6100-6470
650-980 -53.3–80 93.8-154 ninety nine.5-186 110-220 7000-6400
650-980 -53.3–80 116-189 a hundred and fifteen-220 132-250 7750-7760
EL81WD 580-980 nine.8-58.8 54.two-one hundred thirty 18-151 forty five-185 3595
EL82WDB 580-980 nine.8-fifty eight.eight 72.eight-161 22-191 forty five-220 3860
EL83WDA 580-980 nine.8-fifty eight.9 101-213 28.5-202 45-220 4300
EL84WDA 580-980 nine.8-fifty eight.eight 129-267 35.4-252 45-280 4720
EL93WDA 580-730 nine.8-forty nine 230-329 56.four-311 seventy five-355 7765
EL94WDA 580-730 nine.8-49 263-373 sixty four-353 seventy five-400 8130
EL95WDA 490-580 nine.8-58.8 308-434 81.four-414 90-450 11500
EL96WDA 580 58.eight 381 497 560 11500
E397WN 1000-1650 forty 5-nine      
E408WN 870-1650 forty ten-22      
E517WN 980-1580 40 twenty-thirty      
E520WN 930-1550 forty 24-45      
E607WN 750-1250 40 45-76      
E610WN 750-1250 40 seventy five-130      

Spare parts and framework 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 and so on in higher layer

Roots blower pack technique exact same as iron case, just modify to Fumigation Totally free Plywood Scenario

Our manufacturing unit is a specialist manufacturer of Roots blowers which has more than 20 years’ experience in equipment
manufacturing. It is located in Xihu (West Lake) Dis. East CZPT Park, fifty kilometers to the east of ZheJiang provincial
money— HangZhou. Our firm also has handy targeted traffic transportation, as it is fifteen kilometers away from
Diaozhen City station of HangZhou-HangZhou expressway, and 30 kilometers absent from East HangZhou station of
ZheJiang -ZheJiang expressway.The top product of our company is ESR -variety Roots Blower. The roots
vacuum pump is a new type of higher-performance roots blower, which is produced independently based mostly on the
domestic and overseas innovative technologies. Many patented technologies have been adopted on Roots
Blower, and hence we have created considerable consequences in vitality conservation and noise reduction, and so on.. So considerably, our
business has invested far more than thirty,000,000 RMB to introduce such superior professional products as
horizontal machining centre, vertical machining heart, two-way CNC area planer, CNC lathe, CNC milling
device, CNC planer, plane grinder, cylindrical grinding machine, and three coordinates tests machine.
Apart from, we have taken numerous steps to CZPTize the method movement such as operating and cooperating
with numerous scientific research units, schools and universities at home and abroad. We also continually attempt to
take in and improve the domestic superior production technologies, so as to encourage the upgrading and
optimization of the merchandise and make the merchandise quality reach the innovative amount at property and overseas.
ESR -kind Roots Blower includes numerous series such as A few-leaves Variety, Two-leaves Type and Centrifugal
Variety,which can be further divided to hundreds of varieties. The goods are broadly used in sewage therapy,
pneumatic conveying,vacuum packaging, aquaculture, meals processing, electric power, petrochemical, cement,
mining and other industries. Our merchandise have these kinds of positive aspects as minimal noise, strength preserving, steady good quality,
and prolonged support lifestyle, and so on.. With the sales outlets throughout the domestic capital metropolitan areas, our products sell nicely all
in excess of the nation, and have been exported to North America,Russia, Malaysia, Indonesia, Vietnam, South Africa
and some other nations. Possessing got the ISO9001 CZPT CZPT Program Certification, we have
recognized and improved the good quality assurance of the goods developing, manufacturing, and set up.
From the procedure of design and style, analysis and improvement to the finished products, we have acquired the whole
approach controlled independently, hence supplying the entire foundation and trustworthiness promise for the goods balance
and toughness. Possessing a perfect income community and following-revenue support, we supply our buyers with higher-
high quality and more successful support.All personnel of our organization sincerely welcome the wide masses of friends to
guide, and negotiate business with us.

Our Roots Blower Workshop

         Doosn Horzitonal CZPT Middle

The Software of the Roots Blower

Maintenance and inspection
(1) Check out all fasteners and locating pins conditions no matter whether they are loosening.
(two) Constantly verify regardless of whether the leakage phenomenon of the body.
(three) Shell out attention to lubrication, quantity of grease and noises when managing,
establish no matter whether it works under the required conditions.
(4) CZPT & grease: The lubricant is for medium load industrial gear oil
(quality 220, kinematic viscosity of 198 ~ 242mm2 / s 40ºC, flash position ≥ 200ºC)
The grease is butter (artificial lithium grease penetration 220-250, drop point ≥
190ºC). Substitute the lubricant and grease soon after very first two hundred hrs operating, and replace
yet again after a moth managing. Later, substitute the lubricant and grease according to the
setting and lubricant (grease) top quality propose a suitable alternative for a few
(five) Constantly check the inlet air filter, thoroughly clean or replace the filter in time.
(six) Blower overload often not instantly shown, so spend attention to
the consumption and exhaust pressure, bearing temperature and the recent enhance developments
of motor to determine whether or not the blower functions normally
(7) Just before disassembling the blower, the assembling relation and proportions
have to be recorded or calculated, make marks on factors to guarantee the CZPT
requirements following assembling.
(eight) When newly machine or overhaul, the oil tank need to be cleaned prior to use
and suggest replace all grease after 8 several hours working.

Common failure purpose and troubleshooting

No Failure Possible causes Elimination strategies
one Friction
in between the
(1) Impurities on the impeller,
ensuing in the gap is as well modest
(2) Gear dress in, resulting in a
large backlash
(3) The gear is not effectively mounted,
can not sustain the impeller
(four) Bearing wear resulting in
clearance growing.
(one) Take away dirt and check out
whether or not there is injury components
(2) Change the gear gap, change
the gears if the gear backlash is
better than the regular thirty% to
(3)Re-assemble the gears, hold
the taper contact region is to seventy five%
(four)Substitute the bearing
2 Collision
in between
impeller and
wall, the
impeller top
and casing
(1) Installation hole is not right
(2) running pressure is too
higher, exceeding the specified
(3) Functioning temperature is also higher
(four) Casing or base deformation,
positioning supporter failure
(five) Bearing axial location is not good
(one) Modify the hole
(two) Determine leads to of
overloading, diminished the stress
to the specified price
(3) Examine the installation
precision and minimize the pipe
(four) Verify and mend bearings,
and to ensure the clearance
three Temperature
as well large
(1) Oil in tank is way too considerably, as well
thick or as well dirty
(two) CZPT or silencer is blocked
(three)The force is larger than
the specified worth
(four)Abnormal wear of the
impeller, massive hole
(5)Very poor ventilation, indoor
temperature is substantial, ensuing in
inlet air’s substantial temperature
(six) The rotating pace is way too reduced,outcome in the belt slipping.
(one)Reduce the oil amount or rely on
(two)Take away of blocking objects
(3)Minimizing the stress through
the blower
(4)Restore its clearance
(5)Open vents to minimize place
(6) Increase velocity to avoid the
belt slipping.
4 Inadequate
(1) The inlet filter is blocked
(two) Impeller use and the hole
raises way too significantly
(three) Belt slipping
(four) Huge imports force reduction
(five) CZPT air flow leakage
(1) Thoroughly clean the filter dust and
(two) Fix the gap
(three)Tighten the belt and enhance
the variety of belts
(4)Change the inlet stress to the
specified price
(five) Examine and repair the pipeline
5 Oil leaking or
oil leaking
into the enclosure
(1)Large tank situation result in
leakage from the discharge port
(two) Seal dress in, ensuing in shaft oil spills
(3) The force is larger than
the specified benefit

(one)Decrease the oil stage
(two)Substitute the seals
(3)Obvious the air vents, 2mm diameter faucet is fastened in the
center chamber, open up the faucet
under the wall
six Irregular
vibration and
(one)Bearing clearance exceeds the
specified benefit or bearing wear
(2) The gear backlash is also
large, not in a tight mounted
(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 triggered the collision
brought on by overload,
(five) Friction in between the impeller
and the inlet housing caused by
(six) Unbalance of the impeller
caused by fouling or international
(7) CZPT bolts or other
fasteners are loosened
(1)Exchange bearings or bearing
(2)Reassemble gear and guarantee
(three)Cleansing blower, verify the
scenario is ruined
(4)Examine the again force, verify
the wheel and change gap
(5)Verify the filter and again
force, enhance the gap
amongst the impeller inlet and the
(6)Clear the impeller and the
casing, to guarantee that the impeller
clearance work
(7) Tighten the anchor bolts and
leveling the foundation.
seven Motor
(1)Compared with the required
force, the force difference
is massive that the back again strain or
the inlet strain is higher
(two) In contrast with the
equipment demands, blower
stream is also big, so its force
(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 large
(six) Narrow V-belt is overheat,
vibration is way too big, or pulley
is as well little
(1) Reduce the pressure to the
specified value
(2) Exhaust the extra gasoline into
the environment or reduce the
blower pace
(3) Take away the obstructions
(four)Quickly shut down, examine
the explanation
(5) Alter the oil to the right
(6) Check out the belt tension, and
replaced it with big diameter

Our Services

1. Pre market service                                                                              two. Right after promote service                                          
a. advise the appropriate model                                             c. on-line specialized assistance,                                                                                   
b. manufacturing unit tour                                                                              d. complete life spare components and techinical help


twelve months gurantee for our roots blowers

Anti Corrosion High Efficiency Roots Vacuum Pump for Pheumatic Transport