Intensive Type Roots Blower for Fishery, Pheumatic

Intensive Type Roots Blower for Fishery, Pheumatic

We make all types of roots blower, centrifugal blower, Our Main products are as beneath:

Sort Diameter Charge of circulation Force
ESR-MJ(Intensive Kind) Φ50~Φ300mm .5~140m³/min nine.8KPa~ninety eight.8Kpa
ESR(Regular Variety) Φ50~Φ350mm .five~140m³/min 9.8KPa~seventy eight.4Kpa
ESR-H(Substantial-pressure Kind) Φ50~Φ350mm .seven~160m³/min 58.8KPa~98.8Kpa
ESR-V(Vacuum Pump) Φ50~Φ350mm .5~160m³/min nine.8KPa~53.3Kpa
EL Series Φ200~Φ600mm 20.three~750m³/min nine.8KPa~58.8Kpa
Multistage Centrifugal Blower
or C-Series
Φ250~Φ500mm fifty~500m³/min 9.8KPa~98Kpa
ERR-ERG Variety Φ250~Φ500mm 120~420m³/min nine.8KPa~ninety eight.8Kpa

The doing work principle of the three-blade roots blower: two three-lobed rotors are arranged in the cavity, and the
suction port and the discharge port are opened on equally 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 gas in the chamber is pushed to attain the
objective of blowing.

Characteristic of our roots blower:
1. Massive adjustment of the air volume
2. Reduced Sound
three. Substantial effectiveness
4. Minimal strength cosumption
5. Prolonged time life
6. Reputable operating, simple servicing,small footprint

The parameters of our roots blower:

Kind Ratary Pace
Stress Increase
Shaft Electrical power
Motor Unit Maximn
ESR-fifty 1100-2120 nine.eight-fifty eight.8 .65-2.58 .three-3.54 .75-four 128-158
ESR-sixty five 1100-2130 9.eight-fifty eight.8 .94-3.66 .38-four.forty six .75-5.five a hundred and fifty five-185
ESR-eighty 1140-1900 nine.8-58.8 two.34-5.forty three one.04-7.forty two 2.two-11 155-277
ESR-one hundred 1060-1980 nine.8-fifty eight.eight four.57-9.05 1.35-twelve.fifteen 3-fifteen 309-377
ESR-125 980-1850 9.eight-58.8 5.35-twelve.four 1.65-5.19 five.5-18.5 408-451
ESR-125C 970-1830 9.eight-58.eight 7.5-seventeen.57 three.2-18.5 4-22 408-451
ESR-a hundred and fifty 810-1730 9.8-58.eight 10.37-27.15 3.84-forty.eighty two 7.5-forty five 688-848
ESR-175 970-1520 nine.8-fifty eight.8 19.sixty five-36.sixty five 7.2-45.95 11-fifty five 980-1080
ESR-200B 740-1450 nine.8-fifty eight.8 19.sixty five-44.eight 10.15-sixty.44 15-75 1272-1546
ESR-200 810-1480 9.eight-fifty eight.eight 27.sixty five-59.two 8.05-eighty,twelve 15-ninety 1272-1546
ESR-250B 1100-1480 nine.8-58.eight fifty four.seventy seven-77.fifty five 19.97-90.ninety seven 30-110 1490-2454
ESR-250 990-1480 nine.8-fifty eight.8 61.4-ninety seven.52 30-132 1490-2454
ESR-300 990-1480 9.8-58.8 26.four-167.eight 37-185 3326-3446
ESR-350 730-1480 9.eight-58.eight 78.41-177.31   55-250  
ESR-50H 1230-2120 eight .45-2.02 2.05-6.12 three-7.five one hundred sixty–one hundred seventy
ESR-65H 1240-2130 sixty three.7-98 .78-two.fifty three two.89-7.55 four-11 198-230
ESR-80H 1140-1900 sixty one.82-four.fifty five four.09-ten.1 5.5-15 316-326
ESR-100H 1060-1980 two.sixty five-8.06 six.36-17.two seven.5-22 398-459
ESR-125H 980-1850 63.7-ninety eight 4.64-11.23 8.ninety two-24.two eleven-30 544-630
ESR-150H 810-1730 9.53-25.76 seventeen.sixteen-65 18.five-seventy five 752-1571
ESR-200H 810-1480 sixty twenty five.34-fifty six.ninety two forty two.34-a hundred and twenty fifty five-132 1426-1934
ESR-250H 990-1480 sixty three.7-98 fifty eight-ninety three.7 83.two-205 90-220 2980-3468
ESR300H 990-1480 sixty eight 86.9-134.1 132-280 3476-3998
ERF-245 650-980 9.8-98 47.5-97.four 16-183 eighteen.5-two hundred 3630-3690
ERF-250 650-980 nine.eight-98 61.six-one hundred twenty.4 19-227 22-250 4450-4500
ERF-290 650-980 9.8-seventy eight.4 92.three-128 22-213 thirty-250 4890-4710
ERF-295 650-980 nine.eight-78.4 97.three-152.5 23-227 30-250 4890-4880
ERF-297 650-980 nine.8-78.four 87.five-167.six 26-249 30-280 5330-5520
ERF-300 650-980 9.8-78.4 one hundred and 29-278 37-315 5330-5520
ERF-350 650-980 9.eight-78.4 126-224.9 34-249 forty five-280 5210-6470
ERG-300 590-730 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 forty three-420 fifty five-450 9700-1571
ERG-400 590-730 nine.eight-eighty three.3 203.1-290.9 fifty two-449 75-five hundred 10090-11390
ERG-445 590-730 nine.eight-73.5 229.7-327.eight fifty eight-477 75-560 10600-12230
ERG-450 590-730 nine.eight-73.five 262.4-366.two sixty four-496 seventy five-560 10600-12230
ERG-five hundred 590-730 327.four-452.four seventy eight-529 ninety-560 12790-14620
ERF-240-V 650-980 -nine.8- -49 eight 13-76 18.5-90 3420-3285
ERF-245-V 650-980 -9.8- -forty nine 47.5-97.four 16-95 22-a hundred and ten 3425-3360
ERF-250-V 650-980 -9.eight- -forty nine sixty three-one hundred twenty 19-117 22-132 3910-3830
ERF-290-V 650-980 -nine.8- -49 seventy two.six-one hundred forty four 22-136 thirty-a hundred and sixty 4415-4270
ERF-295-V 650-980 -9.eight- -forty nine seventy six.six-152 23-145 thirty-a hundred and sixty 4425-4485
ERF-297-V 650-980 -nine.8- -49 eighty four.3-166.8 26-a hundred and sixty 30-one hundred eighty 5000-4980
ERF-300-V 650-980 -9.eight- -49 97-192 29-178 37-two hundred 5000-4980
ERF-350-V 650-980 -nine.eight- -forty nine 116-225 34-209 forty five-250 5400-5700
ERG-300V 590-730 -nine.eight- -forty nine 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.eight- -forty nine 199-290 fifty two-269 75-315 9900-10130
ERG-445V 590-730 -nine.8- -forty nine 224.8-326.nine 58-303 75-355 9900-10130
ERG-450V 590-730 -9.eight- -forty nine 255-365 64-335 75-400 11230-11300
ERG-500V 590-730 -nine.eight- -forty nine 314-452 78-412 132-450 13630-13850
ERF-245W 650-980 -thirteen.three- -fifty three.three fifty three.5-one hundred and one 21.five-102 30-110 3630-3360
ERF-250W 650-980 -13.3- -53.3 69-127 26.5-127 thirty-160 3985-4115
ERF-290W 650-980 -thirteen.three- -fifty three.three eighty two.six-a hundred and fifty thirty.5-149 37-185 4340-4580
ERF-295W 650-980 -13.three- -53.three 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 -thirteen.three- -fifty three.three 109-195 forty-193 55-220 5230-5130
ERF-350W 650-980 -13.three- -fifty three.three 129-230 50-230 75-250 5840-5670
ERG-300W 590-730 -13.3- -53.3 142-197 fifty two-201 seventy five-220 9100-9000
ERF-350W 590-730 -thirteen.3- -fifty three.3 168-234.four 59-235.5 75-280 9500-9600
ERG-400W 590-730 -thirteen.three- -fifty three.three 220-276.six 71-292 ninety-315 9900-10130
ERG-445W 590-730 -thirteen.three- -fifty three.three 244-294.6 eighty two-331 90-four hundred 11230-11300
ERG450W 590-730 -13.three- -53.3 275-368.five ninety one-366 110-400 11230-11300
650-980 ninety eight-196 64.8-112 one hundred thirty five-355 one hundred sixty-four hundred 8700-8600
650-980 ninety eight-196 80.eight-139 167-439 185-five hundred 9200-9100
650-980 98-176.4 102-174 206-497 250-560 10320-10500
650-980 98-137.2 124-207 241-473 280-560 10700-11110
590-740 ninety eight-176.four 205-273 380-773 450-900 21350-24200
590-740 98-176.4 263-428 476-955 560-one thousand 24200-27600
650-980 -fifty three.three–eighty seventy two-121 75.6-121 ninety-a hundred and sixty 6100-6470
650-980 -53.3–eighty 93.8-154 ninety nine.five-186 one hundred ten-220 7000-6400
(2505/three hundred)
650-980 -fifty three.3–eighty 116-189 a hundred and fifteen-220 132-250 7750-7760
EL81WD 580-980 nine.8-58.eight 54.2-a hundred thirty 18-151 forty five-185 3595
EL82WDB 580-980 nine.eight-58.8 72.eight-161 22-191 forty five-220 3860
EL83WDA 580-980 nine.8-58.9 one hundred and one-213 28.5-202 forty five-220 4300
EL84WDA 580-980 nine.eight-58.eight 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 64-353 75-four hundred 8130
EL95WDA 490-580 9.8-fifty eight.8 308-434 eighty one.four-414 ninety-450 11500
EL96WDA 580 fifty eight.8 381 497 560 11500
E397WN 1000-1650 40 five-nine      
E408WN 870-1650 40 ten-22      
E517WN 980-1580 40 20-thirty      
E520WN 930-1550 forty 24-forty five      
E607WN 750-1250 forty 45-seventy six      
E610WN 750-1250 40 seventy five-a hundred thirty      

Spare areas and composition of our roots blower:

Package of our Roots Blower

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

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

Our factory is a expert manufacturer of Roots blowers which has over 20 years’ experience in machinery
manufacturing. It is located in Xihu (West Lake) Dis. CZPT CZPT Park, 50 kilometers to the east of ZheJiang provincial
cash— HangZhou. Our firm also has handy site visitors transportation, as it is fifteen kilometers away from
Diaozhen Town station of HangZhou-HangZhou expressway, and 30 kilometers away from CZPT HangZhou station of
ZheJiang -ZheJiang expressway.The leading merchandise of our business is ESR -kind Roots Blower. The roots
vacuum pump is a new sort of substantial-efficiency roots blower, which is produced independently based on the
domestic and overseas sophisticated technologies. Many patented technologies have been adopted on Roots
Blower, and thus we have manufactured substantial results in strength conservation and noise reduction, and so forth.. So significantly, our
company has invested much more than 30,000,000 RMB to introduce these kinds of advanced expert tools as
horizontal machining center, vertical machining middle, two-way CNC surface planer, CNC lathe, CNC milling
device, CNC planer, aircraft grinder, cylindrical grinding device, and a few coordinates testing device.
Aside from, we have taken numerous measures to CZPTize the process flow these kinds of as operating and cooperating
with a lot of scientific research units, schools and universities at house and overseas. We also continuously try out to
soak up and increase the domestic sophisticated generation systems, so as to encourage the upgrading and
optimization of the merchandise and make the merchandise top quality get to the superior stage at residence and abroad.
ESR -sort Roots Blower involves numerous sequence such as 3-leaves Variety, Two-leaves Kind and Centrifugal
Sort,which can be further divided to hundreds of kinds. The merchandise are broadly utilized in sewage therapy,
pneumatic conveying,vacuum packaging, aquaculture, food processing, electric powered power, petrochemical, cement,
mining and other industries. Our items have these kinds of benefits as reduced sounds, strength saving, steady top quality,
and long provider life, etc.. With the sales outlets throughout the domestic capital towns, our items promote nicely all
over the nation, and have been exported to North CZPTica,Russia, Malaysia, Indonesia, Vietnam, South Africa
and some other nations. Obtaining acquired the ISO9001 CZPT CZPT Method Certification, we have
set up and enhanced the high quality assurance of the items creating, producing, and installation.
From the process of layout, analysis and advancement to the completed products, we have obtained the total
approach managed independently, hence providing the full basis and trustworthiness ensure for the products steadiness
and toughness. Getting a perfect revenue network and soon after-revenue support, we give our consumers with larger-
top quality and much more successful services.All employees of our firm sincerely welcome the broad masses of close friends to
guide, and negotiate organization with us.

Our Roots Blower Workshop

         Doosn Horzitonal CZPT Heart

The Application of the Roots Blower

Servicing and inspection
(1) Examine all fasteners and locating pins conditions no matter whether they are loosening.
(2) Usually check out whether or not the leakage phenomenon of the body.
(3) Shell out consideration to lubrication, sum of grease and noises when operating,
establish no matter whether it performs beneath the needed situations.
(four) CZPT & grease: The lubricant is for medium load industrial gear oil
(quality 220, kinematic viscosity of 198 ~ 242mm2 / s 40ºC, flash stage ≥ 200ºC)
The grease is butter (synthetic lithium grease penetration 220-250, fall level ≥
190ºC). Replace the lubricant and grease right after first 200 several hours running, and exchange
once more soon after a moth running. Afterwards, replace the lubricant and grease according to the
surroundings and lubricant (grease) quality propose a suitable substitution for 3
(five) Often examine the inlet air filter, cleanse or change the filter in time.
(6) Blower overload sometimes not immediately exhibited, so pay attention to
the intake and exhaust pressure, bearing temperature and the present boost traits
of motor to figure out whether or not the blower works typically
(7) Before disassembling the blower, the assembling relation and dimensions
should be recorded or measured, make marks on parts to ensure the CZPT
specifications after assembling.
(8) When freshly machine or overhaul, the oil tank ought to be cleaned ahead of use
and suggest change all grease after eight several hours working.

Widespread failure purpose and troubleshooting

No Failure Feasible motives Elimination approaches
one Friction
between the
(1) Impurities on the impeller,
resulting in the hole is way too small
(2) Gear put on, resulting in a
massive backlash
(three) The equipment is not nicely fixed,
can not keep the impeller
(4) Bearing dress in ensuing in
clearance rising.
(one) Get rid of dirt and verify
no matter whether there is damage elements
(2) Change the gear hole, change
the gears if the gear backlash is
higher than the typical thirty% to
(3)Re-assemble the gears, maintain
the taper get in touch with region is to 75%
(four)Substitute the bearing
two Collision
impeller and
wall, the
impeller prime
and casing
(one) Set up hole is not appropriate
(two) operating force is also
large, exceeding the specified
(three) Working temperature is as well substantial
(four) Casing or base deformation,
positioning supporter failure
(5) Bearing axial location is not excellent
(1) Alter the gap
(two) Identify brings about of
overloading, diminished the stress
to the specified worth
(3) Check out the set up
accuracy and reduce the pipe
(4) Verify and mend bearings,
and to ensure the clearance
3 Temperature
way too higher
(one) Oil in tank is way too much, way too
thick or as well filthy
(2) CZPT or silencer is blocked
(3)The pressure is greater than
the specified benefit
(four)Abnormal use of the
impeller, huge gap
(five)Inadequate ventilation, indoor
temperature is large, resulting in
inlet air’s higher temperature
(six) The rotating speed is as well lower,result in the belt slipping.
(one)Minimize the oil level or count on
(two)Take away of blocking objects
(three)Minimizing the stress by means of
the blower
(4)Mend its clearance
(5)Open up vents to lessen area
(6) Boost speed to prevent the
belt slipping.
4 Inadequate
(1) The inlet filter is blocked
(2) Impeller wear and the gap
boosts too a lot
(three) Belt slipping
(four) Big imports stress reduction
(5) CZPT air flow leakage
(1) Thoroughly clean the filter dust and
(2) Fix the hole
(three)Tighten the belt and improve
the amount of belts
(four)Modify the inlet force to the
specified price
(five) Check and mend the pipeline
5 Oil leaking or
oil leaking
into the enclosure
(1)Higher tank position result in
leakage from the discharge port
(two) Seal wear, resulting in shaft oil spills
(three) The pressure is larger than
the specified value

(one)Lessen the oil amount
(2)Replace the seals
(3)Distinct the air vents, 2mm diameter faucet is fixed in the
center chamber, open up the faucet
under the wall
6 Abnormal
vibration and
(one)Bearing clearance exceeds the
specified price or bearing wear
(2) The gear backlash is also
massive, not in a restricted set
(three) The overseas objects and dust
induced by the impeller and the
impeller, the impeller and the
housing collision
(4) the impeller shaft
deformation triggered the collision
triggered by overload,
(five) Friction among the impeller
and the inlet housing brought on by
(6) Unbalance of the impeller
caused by fouling or international
human body
(7) CZPT bolts or other
fasteners are loosened
(1)Change bearings or bearing
(2)Reassemble gear and make certain
(3)Cleansing blower, check the
circumstance is destroyed
(four)Verify the back again force, check
the wheel and modify gap
(5)Check the filter and back again
force, enhance the gap
between the impeller inlet and the
(six)Clear the impeller and the
casing, to ensure that the impeller
clearance work
(7) Tighten the anchor bolts and
leveling the base.
7 Motor
(1)When compared with the essential
force, the force big difference
is massive that the again pressure or
the inlet strain is high
(2) In contrast with the
tools specifications, blower
stream is too big, so its force
(3)Inlet filter is blocked, or outlet
pipe is obstructed or blocked
(four) Collusion or friction (stuck)
rotating components
(five) The oil level is as well higher
(six) Narrow V-belt is overheat,
vibration is too massive, or pulley
is too small
(one) Lessen the force to the
specified value
(2) Exhaust the excess fuel into
the ambiance or minimize the
blower pace
(3) Eliminate the obstructions
(four)Immediately shut down, verify
the reason
(5) Adjust the oil to the appropriate
(6) Check out the belt rigidity, and
replaced it with large diameter

Our Support

1. Pre offer service                                                                              two. Right after market service                                          
a. advocate the ideal model                                             c. on the internet technical help,                                                                                   
b. manufacturing unit tour                                                                              d. whole existence spare areas and techinical help


twelve months gurantee for our roots blowers

Intensive Type Roots Blower for Fishery, Pheumatic