Anti Corrosion High Efficiency Roots Vacuum Pump

Anti Corrosion High Efficiency Roots Vacuum Pump

We make all types of roots blower, centrifugal blower, Our Main merchandise are as below:

Kind Diameter Charge of circulation Pressure
ESR-MJ(Intense Variety) Φ50~Φ300mm .5~140m³/min nine.8KPa~ninety eight.8Kpa
ESR(Normal Type) Φ50~Φ350mm .five~140m³/min 9.8KPa~seventy eight.4Kpa
ESR-H(Higher-stress Type) Φ50~Φ350mm .7~160m³/min 58.8KPa~98.8Kpa
ESR-V(Vacuum Pump) Φ50~Φ350mm .five~160m³/min 9.8KPa~53.3Kpa
EL Collection Φ200~Φ600mm twenty.3~750m³/min nine.8KPa~58.8Kpa
Multistage Centrifugal Blower
or C-Sequence
Φ250~Φ500mm fifty~500m³/min 9.8KPa~98Kpa
ERR-ERG Type Φ250~Φ500mm one hundred twenty~420m³/min 9.8KPa~98.8Kpa

The doing work basic principle 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 equally sides of the cavity. By means of the action 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
objective of blowing.

Characteristic of our roots blower:
1. Large adjustment of the air volume
two. Reduced Noise
three. Higher effectiveness
four. Low strength cosumption
five. Lengthy time daily life
6. Reputable operating, simple servicing,modest footprint

The parameters of our roots blower:

Type Ratary Velocity
Force Increase
Shaft Energy
Motor Unit Maximn
ESR-fifty 1100-2120 9.eight-58.eight .sixty five-2.fifty eight .three-three.54 .seventy five-4 128-158
ESR-65 1100-2130 nine.eight-fifty eight.8 .ninety four-three.sixty six .38-four.46 .75-five.five one hundred fifty five-185
ESR-eighty 1140-1900 9.8-fifty eight.eight 2.34-5.43 one.04-7.42 two.two-eleven a hundred and fifty five-277
ESR-100 1060-1980 nine.eight-58.eight 4.fifty seven-9.05 1.35-twelve.15 3-fifteen 309-377
ESR-a hundred twenty five 980-1850 nine.8-58.8 five.35-twelve.four 1.sixty five-five.19 5.5-eighteen.5 408-451
ESR-125C 970-1830 9.8-58.8 seven.5-seventeen.57 three.2-eighteen.5 four-22 408-451
ESR-150 810-1730 nine.8-58.8 ten.37-27.15 3.84-40.82 seven.five-45 688-848
ESR-175 970-1520 9.eight-fifty eight.8 19.65-36.65 seven.two-forty five.95 11-55 980-1080
ESR-200B 740-1450 nine.eight-58.8 19.65-forty four.eight 10.15-sixty.44 15-75 1272-1546
ESR-200 810-1480 9.8-fifty eight.eight 27.sixty five-59.two 8.05-eighty,twelve fifteen-ninety 1272-1546
ESR-250B 1100-1480 9.8-fifty eight.eight fifty four.77-77.fifty five 19.97-90.97 thirty-110 1490-2454
ESR-250 990-1480 9.eight-fifty eight.8 61.4-97.fifty two thirty-132 1490-2454
ESR-three hundred 990-1480 9.eight-58.eight 87.1-138.1 26.4-167.eight 37-185 3326-3446
ESR-350 730-1480 9.8-fifty eight.eight 78.41-177.31   fifty five-250  
ESR-50H 1230-2120 .forty five-2.02 two.05-six.twelve three-7.five 160–170
ESR-65H 1240-2130 .seventy eight-2.fifty three 2.89-7.fifty five 4-eleven 198-230
ESR-80H 1140-1900 1.82-4.fifty five 5.five-15 316-326
ESR-100H 1060-1980 eight two.sixty five-8.06 six.36-17.2 7.5-22 398-459
ESR-125H 980-1850 sixty three.7-98 four.64-11.23 8.ninety two-24.two eleven-30 544-630
ESR-150H 810-1730 sixty eight nine.fifty three-25.76 17.sixteen-sixty five eighteen.five-seventy five 752-1571
ESR-200H 810-1480 eight twenty five.34-fifty six.92 42.34-a hundred and twenty fifty five-132 1426-1934
ESR-250H 990-1480 58-93.7 83.two-205 ninety-220 2980-3468
ESR300H 990-1480 sixty three.7-98 114.7-270 132-280 3476-3998
ERF-245 650-980 9.8-ninety eight 47.five-97.four 16-183 18.five-200 3630-3690
ERF-250 650-980 nine.eight-ninety eight 61.six-a hundred and twenty.four 19-227 22-250 4450-4500
ERF-290 650-980 9.8-78.4 92.3-128 22-213 30-250 4890-4710
ERF-295 650-980 9.eight-seventy eight.four 97.three-152.5 23-227 30-250 4890-4880
ERF-297 650-980 nine.eight-seventy eight.four 87.5-167.six 26-249 thirty-280 5330-5520
ERF-300 650-980 nine.8-seventy eight.four one zero one.5-188.7 29-278 37-315 5330-5520
ERF-350 650-980 9.eight-seventy eight.four 126-224.nine 34-249 45-280 5210-6470
ERG-three hundred 590-730 nine.8-98 128.three-196 38-362 45-four hundred 9440-15710
ERG-350 590-730 9.eight-ninety eight 159.three-231.6 forty three-420 55-450 9700-1571
ERG-four hundred 590-730 9.eight-83.3 203.1-290.9 52-449 seventy five-five hundred 10090-11390
ERG-445 590-730 9.eight-73.five 229.7-327.eight 58-477 75-560 10600-12230
ERG-450 590-730 nine.eight-73.5 262.four-366.2 sixty four-496 75-560 10600-12230
ERG-five hundred 590-730 nine.eight-sixty three.7 327.four-452.4 seventy eight-529 ninety-560 12790-14620
ERF-240-V 650-980 -nine.8- -49 38.1-78 thirteen-seventy six eighteen.5-90 3420-3285
ERF-245-V 650-980 -nine.8- -49 47.5-97.4 16-95 22-a hundred and ten 3425-3360
ERF-250-V 650-980 -nine.eight- -49 63-120 19-117 22-132 3910-3830
ERF-290-V 650-980 -9.eight- -forty nine seventy two.6-a hundred and forty four 22-136 30-160 4415-4270
ERF-295-V 650-980 -9.8- -49 76.6-152 23-a hundred forty five 30-one hundred sixty 4425-4485
ERF-297-V 650-980 -nine.8- -forty nine 84.3-166.8 26-a hundred and sixty thirty-180 5000-4980
ERF-300-V 650-980 -nine.8- -forty nine 97-192 29-178 37-200 5000-4980
ERF-350-V 650-980 -nine.8- -49 116-225 34-209 45-250 5400-5700
ERG-300V 590-730 -nine.eight- -forty nine 133-193 38-184 45-220 7800-9100
ERG-350V 590-730 -9.8- -49 163-231 forty three-216 fifty five-250 9500-9470
ERG-400V 590-730 -nine.eight- -forty nine 199-290 52-269 75-315 9900-10130
ERG-445V 590-730 -9.eight- -49 224.eight-326.9 58-303 75-355 9900-10130
ERG-450V 590-730 -9.eight- -49 255-365 sixty four-335 75-four hundred 11230-11300
ERG-500V 590-730 -nine.eight- -forty nine 314-452 seventy eight-412 132-450 13630-13850
ERF-245W 650-980 -thirteen.three- -fifty three.3 53.five-a hundred and one 21.five-102 30-one hundred ten 3630-3360
ERF-250W 650-980 -13.three- -fifty three.3 69-127 26.five-127 thirty-160 3985-4115
ERF-290W 650-980 -13.three- -fifty three.3 eighty two.6-150 30.5-149 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 -thirteen.three- -fifty three.3 ninety five-174 36-174 forty five-two hundred 5230-5130
ERF-300W 650-980 -thirteen.three- -53.3 109-195 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 -13.3- -fifty three.3 142-197 52-201 seventy five-220 9100-9000
ERF-350W 590-730 -13.3- -53.three 168-234.four 59-235.5 75-280 9500-9600
ERG-400W 590-730 -13.3- -53.3 220-276.6 seventy one-292 90-315 9900-10130
ERG-445W 590-730 -thirteen.3- -fifty three.three 244-294.6 eighty two-331 90-four hundred 11230-11300
ERG450W 590-730 -13.three- -53.3 275-368.five 91-366 one hundred ten-four hundred 11230-11300
650-980 ninety eight-196 sixty four.eight-112 one hundred thirty five-355 160-four hundred 8700-8600
650-980 98-196 eighty.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.two 124-207 241-473 280-560 10700-11110
(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-one thousand 24200-27600
650-980 -53.3–80 seventy two-121 seventy five.6-121 ninety-a hundred and sixty 6100-6470
650-980 -53.three–eighty ninety three.eight-154 99.five-186 110-220 7000-6400
650-980 -53.three–eighty 116-189 115-220 132-250 7750-7760
EL81WD 580-980 nine.8-fifty eight.8 54.two-130 eighteen-151 forty five-185 3595
EL82WDB 580-980 nine.eight-58.8 72.8-161 22-191 forty five-220 3860
EL83WDA 580-980 9.8-58.9 a hundred and one-213 28.5-202 forty five-220 4300
EL84WDA 580-980 nine.8-58.8 129-267 35.4-252 forty five-280 4720
EL93WDA 580-730 nine.8-forty nine 230-329 fifty six.4-311 75-355 7765
EL94WDA 580-730 nine.eight-forty nine 263-373 64-353 seventy five-four hundred 8130
EL95WDA 490-580 9.eight-fifty eight.eight 308-434 81.four-414 90-450 11500
EL96WDA 580 58.8 381 497 560 11500
E397WN one thousand-1650 40 five-9      
E408WN 870-1650 40 ten-22      
E517WN 980-1580 40 twenty-thirty      
E520WN 930-1550 forty 24-forty five      
E607WN 750-1250 forty forty five-76      
E610WN 750-1250 forty 75-130      

Spare areas and composition of our roots blower:

Deal of our Roots Blower

Pack into iron case, two layer,blower physique and motor in decrease layer, inlet/out silencer and so forth in upper layer

Roots blower pack strategy exact same as iron circumstance, just alter to Fumigation Totally free Plywood Situation

Our manufacturing unit is a skilled producer of Roots blowers which has over twenty years’ experience in equipment
producing. It is located in Xihu (West Lake) Dis. East CZPT Park, fifty kilometers to the east of ZheJiang provincial
cash— HangZhou. Our business also has handy traffic transportation, as it is 15 kilometers absent from
Diaozhen City station of HangZhou-HangZhou expressway, and thirty kilometers away from East HangZhou station of
ZheJiang -ZheJiang expressway.The top merchandise of our organization is ESR -kind Roots Blower. The roots
vacuum pump is a new type of higher-effectiveness roots blower, which is created independently dependent on the
domestic and international superior technologies. Several patented technologies have been adopted on Roots
Blower, and as a result we have produced considerable effects in vitality conservation and noise reduction, and many others.. So far, our
company has invested more than 30,000,000 RMB to introduce these kinds of sophisticated skilled gear as
horizontal machining middle, vertical machining heart, two-way CNC surface area planer, CNC lathe, CNC milling
equipment, CNC planer, plane grinder, cylindrical grinding equipment, and three coordinates tests equipment.
In addition to, we have taken numerous steps to CZPTize the procedure circulation these kinds of as working and cooperating
with a lot of scientific research units, schools and universities at residence and abroad. We also continually try out to
absorb and improve the domestic superior creation systems, so as to advertise the upgrading and
optimization of the merchandise and make the merchandise top quality get to the superior level at home and overseas.
ESR -type Roots Blower involves numerous series such as 3-leaves Sort, Two-leaves Kind and Centrifugal
Variety,which can be additional divided to hundreds of kinds. The items are extensively used in sewage treatment,
pneumatic conveying,vacuum packaging, aquaculture, foodstuff processing, electric powered energy, petrochemical, cement,
mining and other industries. Our items have these kinds of advantages as reduced sound, vitality preserving, secure good quality,
and lengthy services daily life, and so on.. With the product sales outlets throughout the domestic capital metropolitan areas, our products sell nicely all
over the country, and have been exported to North The usa,Russia, Malaysia, Indonesia, Vietnam, South Africa
and some other nations. Possessing got the ISO9001 CZPT CZPT Program Certification, we have
recognized and enhanced the quality assurance of the goods designing, manufacturing, and installation.
From the procedure of layout, investigation and improvement to the concluded items, we have acquired the entire
procedure managed independently, thus supplying the total foundation and dependability promise for the goods security
and toughness. Possessing a perfect revenue network and right after-revenue provider, we offer our clients with increased-
good quality and much more efficient service.All personnel of our company sincerely welcome the wide masses of close friends to
information, and negotiate organization with us.

Our Roots Blower Workshop

         Doosn Horzitonal CZPT Middle

The Software of the Roots Blower

Routine maintenance and inspection
(one) Examine all fasteners and finding pins conditions whether or not they are loosening.
(2) Always check whether the leakage phenomenon of the entire body.
(three) Spend attention to lubrication, volume of grease and noises when operating,
determine whether it performs underneath the necessary situations.
(four) CZPT & grease: The lubricant is for medium load industrial equipment oil
(grade 220, kinematic viscosity of 198 ~ 242mm2 / s 40ºC, flash point ≥ 200ºC)
The grease is butter (synthetic lithium grease penetration 220-250, fall position ≥
190ºC). Replace the lubricant and grease following very first 200 several hours running, and change
once again soon after a moth running. Later, substitute the lubricant and grease in accordance to the
environment and lubricant (grease) quality propose a suitable substitute for three
(5) Constantly examine the inlet air filter, cleanse or change the filter in time.
(six) Blower overload often not right away displayed, so spend interest to
the consumption and exhaust force, bearing temperature and the present enhance traits
of motor to establish no matter whether the blower works typically
(7) Prior to disassembling the blower, the assembling relation and proportions
should be recorded or measured, make marks on parts to make sure the CZPT
requirements right after assembling.
(eight) When newly machine or overhaul, the oil tank should be cleaned ahead of use
and propose replace all grease following eight hrs operating.

Common failure reason and troubleshooting

No Failure Feasible factors Elimination methods
1 Friction
in between the
(one) Impurities on the impeller,
resulting in the gap is also little
(2) Equipment use, ensuing in a
big backlash
(three) The gear is not effectively fixed,
can not keep the impeller
(four) Bearing use ensuing in
clearance rising.
(one) Remove grime and check out
whether or not there is hurt elements
(two) Alter the gear gap, exchange
the gears if the equipment backlash is
greater than the average thirty% to
(three)Re-assemble the gears, preserve
the taper get in touch with area is to seventy five%
(4)Substitute the bearing
two Collision
impeller and
wall, the
impeller prime
and casing
(one) Installation gap is not right
(2) operating force is way too
high, exceeding the specified
(three) Running temperature is too substantial
(4) Casing or foundation deformation,
positioning fan failure
(five) Bearing axial place is not excellent
(1) Alter the hole
(2) Discover leads to of
overloading, decreased the force
to the specified value
(three) Check the set up
precision and minimize the pipe
(4) Check out and repair bearings,
and to make sure the clearance
three Temperature
too higher
(one) Oil in tank is too a lot, too
thick or too filthy
(two) CZPT or silencer is blocked
(three)The stress is increased than
the specified worth
(four)Too much put on of the
impeller, large gap
(5)Poor ventilation, indoor
temperature is higher, resulting in
inlet air’s higher temperature
(6) The rotating speed is way too reduced,result in the belt slipping.
(one)Minimize the oil stage or count on
(two)Get rid of of blocking objects
(three)Decreasing the stress by way of
the blower
(4)Mend its clearance
(five)Open vents to decrease room
(six) Increase pace to avoid the
belt slipping.
four Inadequate
(1) The inlet filter is blocked
(2) Impeller use and the hole
boosts also a lot
(3) Belt slipping
(four) Big imports strain loss
(5) CZPT ventilation leakage
(one) Thoroughly clean the filter dust and
(2) Mend the gap
(3)Tighten the belt and enhance
the quantity of belts
(four)Adjust the inlet pressure to the
specified worth
(5) Examine and fix the pipeline
five Oil leaking or
oil leaking
into the enclosure
(1)High tank placement trigger
leakage from the discharge port
(2) Seal put on, ensuing in shaft oil spills
(three) The force is higher than
the specified worth

(1)Minimize the oil degree
(2)Exchange the seals
(three)Distinct the air vents, 2mm diameter faucet is fixed in the
center chamber, open the faucet
under the wall
6 Abnormal
vibration and
(1)Bearing clearance exceeds the
specified worth or bearing put on
(two) The equipment backlash is also
large, not in a limited set
(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
triggered by overload,
(5) Friction amongst the impeller
and the inlet housing induced by
(6) Unbalance of the impeller
triggered by fouling or overseas
(7) CZPT bolts or other
fasteners are loosened
(one)Substitute bearings or bearing
(two)Reassemble equipment and make certain
(3)Cleansing blower, examine the
scenario is ruined
(4)Check out the back again strain, check out
the wheel and change gap
(5)Verify the filter and back again
strain, boost the gap
between the impeller inlet and the
(six)Clear the impeller and the
casing, to make sure that the impeller
clearance function
(seven) Tighten the anchor bolts and
leveling the base.
seven Motor
(1)In contrast with the required
force, the force variation
is huge that the back again stress or
the inlet strain is substantial
(two) Compared with the
equipment demands, blower
stream is too large, so its force
will increase
(three)Inlet filter is blocked, or outlet
pipe is obstructed or blocked
(4) Collusion or friction (stuck)
rotating elements
(five) The oil degree is too higher
(six) Narrow V-belt is overheat,
vibration is also large, or pulley
is as well small
(one) Decrease the force to the
specified worth
(2) Exhaust the surplus fuel into
the ambiance or decrease the
blower pace
(3) Eliminate the obstructions
(four)Quickly shut down, examine
the explanation
(five) Alter the oil to the correct
(6) Check out the belt tension, and
changed it with huge diameter

Our Service

one. Pre offer service                                                                              two. After market service                                          
a. advise the appropriate model                                             c. on the web technical support,                                                                                   
b. factory tour                                                                              d. complete lifestyle spare parts and techinical assistance


12 months gurantee for our roots blowers

Anti Corrosion High Efficiency Roots Vacuum Pump