Double Oil Case Roots Blower for Fishery

Double Oil Case Roots Blower for Fishery

We make all types of roots blower, centrifugal blower, Our Primary merchandise are as beneath:

Kind Diameter Rate of movement Force
ESR-MJ(Intense Sort) Φ50~Φ300mm .five~140m³/min nine.8KPa~ninety eight.8Kpa
ESR(Normal Sort) Φ50~Φ350mm .5~140m³/min nine.8KPa~78.4Kpa
ESR-H(Large-stress Kind) Φ50~Φ350mm .seven~160m³/min fifty eight.8KPa~98.8Kpa
ESR-V(Vacuum Pump) Φ50~Φ350mm .5~160m³/min 9.8KPa~fifty three.3Kpa
EL Series Φ200~Φ600mm 20.3~750m³/min 9.8KPa~fifty eight.8Kpa
Multistage Centrifugal Blower
or C-Collection
Φ250~Φ500mm 50~500m³/min nine.8KPa~98Kpa
ERR-ERG Sort Φ250~Φ500mm one hundred twenty~420m³/min nine.8KPa~98.8Kpa

The working basic principle of the a few-blade roots blower: two three-lobed rotors are arranged in the cavity, and the
suction port and the discharge port are opened on the two sides of the cavity. By means of the action of a pair of
synchronous gears, the two rotors rotate in reverse instructions 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 achieve the
purpose of blowing.

Function of our roots blower:
one. Huge adjustment of the air volume
2. Low Noise
three. Higher efficiency
4. Lower strength cosumption
five. Lengthy time daily life
six. Dependable working, effortless servicing,modest footprint

The parameters of our roots blower:

Variety Ratary Velocity
Force Rise
Shaft Electricity
Motor Device Maximn
Electrical power
ESR-50 1100-2120 nine.eight-fifty eight.eight .65-2.58 .three-three.fifty four .seventy five-four 128-158
ESR-65 1100-2130 9.eight-fifty eight.eight .ninety four-three.sixty six .38-4.46 .75-five.five a hundred and fifty five-185
ESR-80 1140-1900 9.eight-fifty eight.eight 2.34-5.forty three one.04-seven.42 2.two-eleven one hundred fifty five-277
ESR-a hundred 1060-1980 nine.8-58.eight four.57-9.05 one.35-twelve.fifteen three-15 309-377
ESR-a hundred twenty five 980-1850 9.eight-58.8 5.35-12.four 1.sixty five-five.19 5.five-eighteen.five 408-451
ESR-125C 970-1830 nine.8-fifty eight.8 seven.five-seventeen.fifty seven 3.2-eighteen.five four-22 408-451
ESR-one hundred fifty 810-1730 nine.eight-58.8 10.37-27.15 3.eighty four-40.eighty two 7.five-forty five 688-848
ESR-a hundred seventy five 970-1520 9.eight-fifty eight.eight 19.65-36.sixty five 7.two-45.95 11-55 980-1080
ESR-200B 740-1450 9.eight-fifty eight.eight 19.sixty five-forty four.eight 10.fifteen-sixty.44 15-seventy five 1272-1546
ESR-200 810-1480 nine.8-fifty eight.8 27.65-fifty nine.two eight.05-80,12 15-90 1272-1546
ESR-250B 1100-1480 nine.eight-fifty eight.8 fifty four.77-seventy seven.55 19.97-ninety.97 30-110 1490-2454
ESR-250 990-1480 9.8-fifty eight.8 61.4-97.fifty two 20.1-117.three 30-132 1490-2454
ESR-three hundred 990-1480 9.eight-58.8 26.4-167.eight 37-185 3326-3446
ESR-350 730-1480 nine.8-fifty eight.8 seventy eight.41-177.31   55-250  
ESR-50H 1230-2120 eight .45-two.02 2.05-six.12 three-7.5 160–a hundred and seventy
ESR-65H 1240-2130 .78-two.fifty three 2.89-7.55 four-11 198-230
ESR-80H 1140-1900 sixty three.7-98 1.eighty two-four.55 four.09-ten.1 five.five-fifteen 316-326
ESR-100H 1060-1980 sixty two.sixty five-eight.06 6.36-17.2 7.five-22 398-459
ESR-125H 980-1850 4.sixty four-eleven.23 eight.92-24.2 eleven-thirty 544-630
ESR-150H 810-1730 9.fifty three-25.76 seventeen.sixteen-65 eighteen.5-seventy five 752-1571
ESR-200H 810-1480 twenty five.34-56.92 forty two.34-one hundred twenty fifty five-132 1426-1934
ESR-250H 990-1480 sixty eight 58-93.7 eighty three.two-205 ninety-220 2980-3468
ESR300H 990-1480 63.7-98 114.7-270 132-280 3476-3998
ERF-245 650-980 nine.eight-98 forty seven.5-ninety seven.4 sixteen-183 18.5-200 3630-3690
ERF-250 650-980 nine.eight-98 sixty one.six-a hundred and twenty.four 19-227 22-250 4450-4500
ERF-290 650-980 nine.8-78.four ninety two.3-128 22-213 thirty-250 4890-4710
ERF-295 650-980 nine.eight-seventy eight.four 97.three-152.five 23-227 30-250 4890-4880
ERF-297 650-980 9.8-78.4 87.five-167.6 26-249 thirty-280 5330-5520
ERF-300 650-980 9.8-seventy eight.four one zero one.five-188.7 29-278 37-315 5330-5520
ERF-350 650-980 nine.8-78.four 126-224.nine 34-249 forty five-280 5210-6470
ERG-300 590-730 9.8-ninety eight 128.3-196 38-362 forty five-four hundred 9440-15710
ERG-350 590-730 nine.8-ninety eight 159.three-231.six 43-420 55-450 9700-1571
ERG-400 590-730 9.8-83.3 fifty two-449 seventy five-500 10090-11390
ERG-445 590-730 nine.eight-73.five 229.7-327.8 58-477 seventy five-560 10600-12230
ERG-450 590-730 nine.eight-73.5 262.4-366.2 64-496 seventy five-560 10600-12230
ERG-five hundred 590-730 nine.eight-sixty 327.four-452.four 78-529 90-560 12790-14620
ERF-240-V 650-980 -nine.8- -49 38.1-seventy eight 13-76 eighteen.five-ninety 3420-3285
ERF-245-V 650-980 -nine.eight- -49 47.5-97.four 16-ninety five 22-110 3425-3360
ERF-250-V 650-980 -nine.8- -49 sixty three-a hundred and twenty 19-117 22-132 3910-3830
ERF-290-V 650-980 -nine.8- -49 72.6-144 22-136 30-160 4415-4270
ERF-295-V 650-980 -9.8- -49 seventy six.six-152 23-145 thirty-160 4425-4485
ERF-297-V 650-980 -nine.eight- -49 eighty four.three-166.eight 26-one hundred sixty 30-a hundred and eighty 5000-4980
ERF-three hundred-V 650-980 -nine.eight- -forty nine ninety seven-192 29-178 37-two hundred 5000-4980
ERF-350-V 650-980 -nine.8- -forty nine 116-225 34-209 forty five-250 5400-5700
ERG-300V 590-730 -nine.8- -forty nine 133-193 38-184 45-220 7800-9100
ERG-350V 590-730 -9.8- -49 163-231 43-216 55-250 9500-9470
ERG-400V 590-730 -9.eight- -forty nine 199-290 52-269 seventy five-315 9900-10130
ERG-445V 590-730 -9.8- -49 224.8-326.9 58-303 75-355 9900-10130
ERG-450V 590-730 -9.8- -forty nine 255-365 sixty four-335 75-four hundred 11230-11300
ERG-500V 590-730 -nine.8- -49 314-452 seventy eight-412 132-450 13630-13850
ERF-245W 650-980 -thirteen.three- -53.3 fifty three.5-a hundred and one 21.five-102 30-110 3630-3360
ERF-250W 650-980 -thirteen.three- -fifty three.3 sixty nine-127 26.five-127 thirty-a hundred and sixty 3985-4115
ERF-290W 650-980 -13.3- -fifty three.3 eighty two.6-one hundred fifty thirty.5-149 37-185 4340-4580
ERF-295W 650-980 -13.3- -fifty three.3 87-158 32-158 37-185 4440-4580
ERF-297W 650-980 -13.3- -53.3 95-174 36-174 forty five-200 5230-5130
ERF-300W 650-980 -13.3- -fifty three.3 109-195 forty-193 55-220 5230-5130
ERF-350W 650-980 -13.3- -fifty three.three 129-230 fifty-230 seventy five-250 5840-5670
ERG-300W 590-730 -13.3- -53.three 142-197 fifty two-201 seventy five-220 9100-9000
ERF-350W 590-730 -13.3- -fifty three.3 168-234.four fifty nine-235.5 seventy five-280 9500-9600
ERG-400W 590-730 -13.3- -fifty three.3 220-276.six seventy one-292 ninety-315 9900-10130
ERG-445W 590-730 -13.3- -53.3 244-294.six eighty two-331 ninety-400 11230-11300
ERG450W 590-730 -13.3- -53.three 275-368.5 91-366 one hundred ten-400 11230-11300
650-980 98-196 sixty four.eight-112 one hundred thirty five-355 160-four hundred 8700-8600
650-980 ninety eight-196 eighty.8-139 167-439 185-500 9200-9100
650-980 ninety eight-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 ninety eight-176.four 263-428 476-955 560-a thousand 24200-27600
650-980 -53.three–eighty 72-121 seventy five.six-121 ninety-a hundred and sixty 6100-6470
650-980 -fifty three.3–80 93.eight-154 ninety nine.5-186 a hundred and ten-220 7000-6400
650-980 -53.three–80 116-189 115-220 132-250 7750-7760
EL81WD 580-980 9.eight-fifty eight.eight fifty four.2-a hundred thirty eighteen-151 forty five-185 3595
EL82WDB 580-980 nine.8-58.8 seventy two.eight-161 22-191 forty five-220 3860
EL83WDA 580-980 nine.8-58.9 a hundred and one-213 28.five-202 45-220 4300
EL84WDA 580-980 nine.eight-58.8 129-267 35.4-252 45-280 4720
EL93WDA 580-730 9.8-forty nine 230-329 56.four-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.8 308-434 81.four-414 ninety-450 11500
EL96WDA 580 fifty eight.8 381 497 560 11500
E397WN one thousand-1650 forty 5-nine      
E408WN 870-1650 forty ten-22      
E517WN 980-1580 40 20-30      
E520WN 930-1550 40 24-45      
E607WN 750-1250 forty forty five-76      
E610WN 750-1250 forty 75-a hundred thirty      

Spare areas and composition of our roots blower:

Bundle of our Roots Blower

Pack into iron circumstance, two layer,blower physique and motor in lower layer, inlet/out silencer and many others in higher layer

Roots blower pack strategy identical as iron case, just change to Fumigation Free Plywood Circumstance

Our manufacturing facility is a professional maker of Roots blowers which has more than twenty years’ experience in equipment
manufacturing. It is positioned in Xihu (West Lake) Dis. CZPT CZPT Park, 50 kilometers to the east of ZheJiang provincial
capital— HangZhou. Our organization also has convenient targeted traffic transportation, as it is 15 kilometers away from
Diaozhen City station of HangZhou-HangZhou expressway, and thirty kilometers away from CZPT HangZhou station of
ZheJiang -ZheJiang expressway.The top solution of our company is ESR -kind Roots Blower. The roots
vacuum pump is a new sort of large-efficiency roots blower, which is created independently based on the
domestic and foreign innovative systems. Many patented technologies have been adopted on Roots
Blower, and thus we have made considerable consequences in strength conservation and noise reduction, etc.. So far, our
business has invested far more than thirty,000,000 RMB to introduce these kinds of innovative specialist products as
horizontal machining centre, vertical machining center, two-way CNC surface area planer, CNC lathe, CNC milling
machine, CNC planer, plane grinder, cylindrical grinding device, and 3 coordinates testing device.
In addition to, we have taken numerous measures to CZPTize the method flow this sort of as functioning and cooperating
with numerous scientific research units, schools and universities at residence and abroad. We also constantly attempt to
take up and boost the domestic innovative manufacturing systems, so as to advertise the upgrading and
optimization of the solution and make the merchandise high quality get to the sophisticated level at residence and abroad.
ESR -kind Roots Blower consists of many series this sort of as 3-leaves Type, Two-leaves Type and Centrifugal
Sort,which can be further divided to hundreds of types. The goods are broadly utilised in sewage therapy,
pneumatic conveying,vacuum packaging, aquaculture, food processing, electric power, petrochemical, cement,
mining and other industries. Our merchandise have these kinds of benefits as reduced sounds, vitality conserving, steady high quality,
and extended provider existence, etc.. With the product sales outlets throughout the domestic cash towns, our merchandise offer well all
over the region, and have been exported to North CZPTica,Russia, Malaysia, Indonesia, Vietnam, South Africa
and some other nations around the world. Possessing got the ISO9001 CZPT CZPT Technique Certification, we have
recognized and improved the good quality assurance of the products planning, manufacturing, and installation.
From the process of layout, study and advancement to the completed goods, we have received the total
approach managed independently, thus delivering the total basis and trustworthiness guarantee for the goods steadiness
and sturdiness. Having a perfect income community and following-product sales service, we give our consumers with larger-
good quality and far more successful support.All workers of our business sincerely welcome the wide masses of buddies to
information, and negotiate organization with us.

Our Roots Blower Workshop

         Doosn Horzitonal CZPT Middle

The Application of the Roots Blower

Upkeep and inspection
(one) Check out all fasteners and finding pins conditions no matter whether they are loosening.
(2) Often check out whether the leakage phenomenon of the entire body.
(three) Pay attention to lubrication, quantity of grease and noises when operating,
establish whether or not it operates under the necessary conditions.
(four) CZPT & grease: The lubricant is for medium load industrial gear oil
(grade 220, kinematic viscosity of 198 ~ 242mm2 / s 40ºC, flash position ≥ 200ºC)
The grease is butter (artificial lithium grease penetration 220-250, fall stage ≥
190ºC). Replace the lubricant and grease right after initial two hundred hrs working, and change
once again following a moth running. Later, replace the lubricant and grease in accordance to the
environment and lubricant (grease) good quality propose a appropriate replacement for a few
(five) Usually check the inlet air filter, clear or change the filter in time.
(6) Blower overload at times not immediately shown, so pay attention to
the consumption and exhaust stress, bearing temperature and the present enhance traits
of motor to determine whether the blower performs usually
(seven) Before disassembling the blower, the assembling relation and dimensions
should be recorded or measured, make marks on components to guarantee the CZPT
needs after assembling.
(8) When recently equipment or overhaul, the oil tank must be cleaned ahead of use
and suggest exchange all grease soon after eight hrs running.

Widespread failure purpose and troubleshooting

No Failure Achievable reasons Elimination approaches
1 Friction
amongst the
(one) Impurities on the impeller,
resulting in the hole is also modest
(two) Equipment put on, ensuing in a
huge backlash
(three) The equipment is not properly mounted,
can not sustain the impeller
(4) Bearing put on ensuing in
clearance rising.
(1) Get rid of grime and verify
regardless of whether there is damage areas
(2) Alter the equipment gap, exchange
the gears if the equipment backlash is
increased than the typical 30% to
(3)Re-assemble the gears, hold
the taper get in touch with region is to 75%
(4)Replace the bearing
2 Collision
impeller and
wall, the
impeller leading
and casing
(one) Set up hole is not proper
(two) working force is too
high, exceeding the specified
(three) Working temperature is too substantial
(4) Casing or base deformation,
positioning admirer failure
(5) Bearing axial place is not excellent
(1) Adjust the gap
(two) Determine leads to of
overloading, reduced the stress
to the specified worth
(three) Examine the installation
precision and decrease the pipe
(four) Verify and fix bearings,
and to guarantee the clearance
3 Temperature
also substantial
(1) Oil in tank is as well much, as well
thick or as well soiled
(two) CZPT or silencer is blocked
(three)The force is increased than
the specified price
(4)Excessive wear of the
impeller, large hole
(5)Poor air flow, indoor
temperature is large, resulting in
inlet air’s large temperature
(six) The rotating velocity is way too lower,end result in the belt slipping.
(one)Decrease the oil stage or rely on
(2)Eliminate of blocking objects
(three)Minimizing the force via
the blower
(four)Fix its clearance
(five)Open vents to reduce place
(six) Improve velocity to stop the
belt slipping.
4 Inadequate
(one) The inlet filter is blocked
(2) Impeller wear and the hole
will increase too considerably
(three) Belt slipping
(four) Large imports pressure reduction
(5) CZPT air flow leakage
(one) Thoroughly clean the filter dust and
(2) Mend the hole
(3)Tighten the belt and improve
the variety of belts
(4)Adjust the inlet force to the
specified benefit
(5) Check and fix the pipeline
five Oil leaking or
oil leaking
into the enclosure
(1)Substantial tank situation lead to
leakage from the discharge port
(2) Seal use, resulting in shaft oil spills
(3) The strain is larger than
the specified benefit

(one)Reduce the oil degree
(two)Replace the seals
(three)Distinct the air vents, 2mm diameter faucet is mounted in the
middle chamber, open up the faucet
underneath the wall
6 Irregular
vibration and
(1)Bearing clearance exceeds the
specified benefit or bearing dress in
(two) The gear backlash is too
large, not in a limited set
(3) The foreign objects and dust
triggered by the impeller and the
impeller, the impeller and the
housing collision
(four) the impeller shaft
deformation induced the collision
brought on by overload,
(five) Friction between the impeller
and the inlet housing caused by
(6) Unbalance of the impeller
induced by fouling or international
(seven) CZPT bolts or other
fasteners are loosened
(1)Replace bearings or bearing
(2)Reassemble gear and make sure
(three)Cleansing blower, verify the
circumstance is ruined
(four)Check the again stress, examine
the wheel and modify gap
(five)Examine the filter and back
stress, increase the hole
between the impeller inlet and the
(6)Clear the impeller and the
casing, to ensure that the impeller
clearance perform
(seven) Tighten the anchor bolts and
leveling the foundation.
7 Motor
(one)When compared with the needed
pressure, the pressure big difference
is huge that the back again stress or
the inlet strain is high
(two) In contrast with the
products specifications, blower
flow is also large, so its pressure
(3)Inlet filter is blocked, or outlet
pipe is obstructed or blocked
(four) Collusion or friction (trapped)
rotating parts
(5) The oil level is also large
(6) Slim V-belt is overheat,
vibration is too large, or pulley
is as well modest
(1) Minimize the stress to the
specified worth
(two) Exhaust the excessive fuel into
the ambiance or reduce the
blower velocity
(three) Take away the obstructions
(four)Right away shut down, verify
the explanation
(5) Modify the oil to the proper
(six) Verify the belt stress, and
replaced it with massive diameter

Our Support

1. Pre sell service                                                                              2. Right after offer service                                          
a. suggest the appropriate model                                             c. on the web technical assist,                                                                                   
b. factory tour                                                                              d. whole daily life spare components and techinical support


twelve months gurantee for our roots blowers

Double Oil Case Roots Blower for Fishery