Double Oil Case Water Cooling High Efficiency Roots Vacuum Pump

Double Oil Case Water Cooling High Efficiency Roots Vacuum Pump

We make all sorts of roots blower, centrifugal blower, Our Primary products are as beneath:

Type Diameter Price of movement Force
ESR-MJ(Intense Kind) Φ50~Φ300mm .5~140m³/min nine.8KPa~ninety eight.8Kpa
ESR(Regular Variety) Φ50~Φ350mm .5~140m³/min nine.8KPa~78.4Kpa
ESR-H(Higher-force Kind) Φ50~Φ350mm .7~160m³/min fifty eight.8KPa~ninety eight.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-Sequence
Φ250~Φ500mm fifty~500m³/min nine.8KPa~98Kpa
ERR-ERG Type Φ250~Φ500mm a hundred and twenty~420m³/min 9.8KPa~ninety eight.8Kpa

The doing work theory of the a few-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 gas in the chamber is pushed to accomplish the
goal of blowing.

Characteristic of our roots blower:
one. Huge adjustment of the air quantity
2. Reduced Sound
three. Substantial effectiveness
4. Reduced strength cosumption
5. Extended time life
6. Trustworthy running, easy servicing,modest footprint

The parameters of our roots blower:

Kind Ratary Pace
(r/min)
Stress Increase
(Kpa)
Capacity
(m/min)
Shaft Electricity
(Kw)
Motor Device Maximn
Bodyweight(Kg)
Electricity
(Kw)
ESR-50 1100-2120 9.8-58.eight .sixty five-two.58 .3-three.54 .seventy five-4 128-158
ESR-sixty five 1100-2130 nine.8-58.8 .ninety four-three.sixty six .38-4.46 .75-five.5 a hundred and fifty five-185
ESR-80 1140-1900 nine.8-fifty eight.8 2.34-five.43 1.04-7.forty two two.2-11 155-277
ESR-one hundred 1060-1980 nine.8-fifty eight.eight four.fifty seven-9.05 one.35-12.fifteen three-15 309-377
ESR-125 980-1850 9.8-58.8 5.35-twelve.four 1.sixty five-five.19 5.5-eighteen.five 408-451
ESR-125C 970-1830 nine.eight-58.eight 7.five-17.fifty seven three.two-18.5 four-22 408-451
ESR-150 810-1730 9.8-fifty eight.eight ten.37-27.15 three.eighty four-forty.82 7.5-forty five 688-848
ESR-a hundred seventy five 970-1520 nine.8-fifty eight.eight 19.65-36.65 seven.two-45.95 11-55 980-1080
ESR-200B 740-1450 9.8-58.8 19.sixty five-forty four.8 10.fifteen-sixty.44 15-75 1272-1546
ESR-two hundred 810-1480 9.eight-fifty eight.eight 27.65-59.2 eight.05-eighty,12 fifteen-ninety 1272-1546
ESR-250B 1100-1480 nine.8-fifty eight.eight fifty four.77-seventy seven.55 19.ninety seven-ninety.ninety seven thirty-one hundred ten 1490-2454
ESR-250 990-1480 nine.8-58.eight sixty one.four-ninety seven.fifty two 20.one-117.3 30-132 1490-2454
ESR-three hundred 990-1480 nine.eight-58.8 87.one-138.one 26.4-167.eight 37-185 3326-3446
ESR-350 730-1480 9.eight-fifty eight.eight 78.41-177.31   fifty five-250  
ESR-50H 1230-2120 sixty three.seven-ninety eight .forty five-two.02 two.05-6.twelve 3-7.five 160–a hundred and seventy
ESR-65H 1240-2130 63.7-ninety eight .seventy eight-2.53 2.89-seven.55 4-eleven 198-230
ESR-80H 1140-1900 63.7-ninety eight 1.82-4.fifty five four.09-10.one 5.5-fifteen 316-326
ESR-100H 1060-1980 63.seven-ninety eight two.sixty five-eight.06 6.36-seventeen.two seven.5-22 398-459
ESR-125H 980-1850 63.7-98 4.sixty four-eleven.23 8.ninety two-24.two eleven-thirty 544-630
ESR-150H 810-1730 63.seven-ninety eight 9.fifty three-25.seventy six 17.sixteen-65 18.five-75 752-1571
ESR-200H 810-1480 sixty three.seven-ninety eight twenty five.34-fifty six.92 42.34-120 55-132 1426-1934
ESR-250H 990-1480 sixty three.7-ninety eight fifty eight-ninety three.7 eighty three.two-205 ninety-220 2980-3468
ESR300H 990-1480 63.seven-ninety eight 86.9-134.1 114.seven-270 132-280 3476-3998
ERF-245 650-980 9.8-ninety eight 47.five-ninety seven.4 sixteen-183 18.5-two hundred 3630-3690
ERF-250 650-980 9.eight-98 sixty one.six-a hundred and twenty.4 19-227 22-250 4450-4500
ERF-290 650-980 9.8-78.four ninety two.three-128 22-213 thirty-250 4890-4710
ERF-295 650-980 9.8-78.4 ninety seven.three-152.five 23-227 thirty-250 4890-4880
ERF-297 650-980 9.8-78.four 87.five-167.six 26-249 thirty-280 5330-5520
ERF-300 650-980 nine.8-78.4 101.5-188.7 29-278 37-315 5330-5520
ERF-350 650-980 9.eight-78.four 126-224.nine 34-249 forty five-280 5210-6470
ERG-300 590-730 9.8-ninety eight 128.three-196 38-362 forty five-400 9440-15710
ERG-350 590-730 nine.eight-98 159.three-231.six 43-420 55-450 9700-1571
ERG-400 590-730 9.8-eighty three.three 203.one-290.nine 52-449 seventy five-500 10090-11390
ERG-445 590-730 nine.eight-seventy three.5 229.seven-327.eight fifty eight-477 75-560 10600-12230
ERG-450 590-730 9.8-73.five 262.4-366.2 sixty four-496 seventy five-560 10600-12230
ERG-500 590-730 9.8-63.seven 327.4-452.4 78-529 90-560 12790-14620
ERF-240-V 650-980 -nine.8- -forty nine 38.1-78 13-seventy six 18.5-90 3420-3285
ERF-245-V 650-980 -nine.eight- -forty nine 47.5-ninety seven.four 16-ninety five 22-110 3425-3360
ERF-250-V 650-980 -9.eight- -forty nine 63-a hundred and twenty 19-117 22-132 3910-3830
ERF-290-V 650-980 -nine.eight- -forty nine seventy two.6-144 22-136 thirty-one hundred sixty 4415-4270
ERF-295-V 650-980 -9.eight- -forty nine 76.6-152 23-a hundred forty five thirty-a hundred and sixty 4425-4485
ERF-297-V 650-980 -9.eight- -49 eighty four.three-166.8 26-one hundred sixty 30-a hundred and eighty 5000-4980
ERF-300-V 650-980 -9.8- -forty nine ninety seven-192 29-178 37-two hundred 5000-4980
ERF-350-V 650-980 -9.eight- -forty nine 116-225 34-209 45-250 5400-5700
ERG-300V 590-730 -nine.8- -49 133-193 38-184 forty five-220 7800-9100
ERG-350V 590-730 -nine.eight- -forty nine 163-231 forty three-216 fifty five-250 9500-9470
ERG-400V 590-730 -nine.eight- -forty nine 199-290 fifty two-269 75-315 9900-10130
ERG-445V 590-730 -nine.8- -forty nine 224.8-326.nine fifty eight-303 75-355 9900-10130
ERG-450V 590-730 -nine.eight- -49 255-365 sixty four-335 seventy five-400 11230-11300
ERG-500V 590-730 -nine.eight- -49 314-452 78-412 132-450 13630-13850
ERF-245W 650-980 -thirteen.3- -53.three fifty three.5-one hundred and one 21.five-102 30-110 3630-3360
ERF-250W 650-980 -13.3- -fifty three.3 sixty nine-127 26.5-127 thirty-a hundred and sixty 3985-4115
ERF-290W 650-980 -13.three- -fifty three.three eighty two.six-one hundred fifty thirty.5-149 37-185 4340-4580
ERF-295W 650-980 -13.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 45-two hundred 5230-5130
ERF-300W 650-980 -thirteen.3- -53.3 109-195 40-193 55-220 5230-5130
ERF-350W 650-980 -thirteen.three- -fifty three.three 129-230 50-230 75-250 5840-5670
ERG-300W 590-730 -13.3- -fifty three.3 142-197 52-201 seventy five-220 9100-9000
ERF-350W 590-730 -thirteen.3- -53.3 168-234.four fifty nine-235.five 75-280 9500-9600
ERG-400W 590-730 -thirteen.3- -53.3 220-276.six seventy one-292 90-315 9900-10130
ERG-445W 590-730 -13.3- -fifty three.three 244-294.six 82-331 90-four hundred 11230-11300
ERG450W 590-730 -thirteen.three- -53.three 275-368.five ninety one-366 a hundred and ten-four hundred 11230-11300
ETRF-250
(240,250)
650-980 ninety eight-196 sixty four.eight-112 a hundred thirty five-355 one hundred sixty-four hundred 8700-8600
ETRF-295
(245,295)
650-980 ninety eight-196 80.8-139 167-439 185-500 9200-9100
ETRF-300
(245,295)
650-980 98-176.4 102-174 206-497 250-560 10320-10500
ETRF-350
(245,295)
650-980 98-137.two 124-207 241-473 280-560 10700-11110
ETRG-four hundred
(300,four hundred)
590-740 98-176.4 205-273 380-773 450-900 21350-24200
ETRG-450
(350,450)
590-740 ninety eight-176.4 263-428 476-955 560-a thousand 24200-27600
ETRF-250W
(240,250)
650-980 -53.3–80 seventy two-121 seventy five.six-121 90-one hundred sixty 6100-6470
ETRF-295W
(245/295)
650-980 -53.3–80 ninety three.eight-154 ninety nine.5-186 a hundred and ten-220 7000-6400
ETRF-300W
(2505/three hundred)
650-980 -53.three–80 116-189 115-220 132-250 7750-7760
EL81WD 580-980 9.8-fifty eight.8 54.2-one hundred thirty eighteen-151 forty five-185 3595
EL82WDB 580-980 9.8-58.8 seventy two.eight-161 22-191 forty five-220 3860
EL83WDA 580-980 9.8-fifty eight.nine 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 9.8-forty nine 230-329 fifty six.4-311 75-355 7765
EL94WDA 580-730 9.8-49 263-373 64-353 seventy five-four hundred 8130
EL95WDA 490-580 nine.eight-fifty eight.eight 308-434 eighty one.4-414 ninety-450 11500
EL96WDA 580 fifty eight.8 381 497 560 11500
E397WN a thousand-1650 40 5-9      
E408WN 870-1650 forty 10-22      
E517WN 980-1580 40 twenty-thirty      
E520WN 930-1550 40 24-45      
E607WN 750-1250 forty forty five-seventy six      
E610WN 750-1250 40 75-one hundred thirty      

Spare elements and composition of our roots blower:

Deal of our Roots Blower

Pack into iron circumstance, two layer,blower physique and motor in reduced layer, inlet/out silencer etc in upper layer

Roots blower pack approach identical as iron scenario, just alter to Fumigation Cost-free Plywood Circumstance

Our manufacturing unit is a skilled company of Roots blowers which has above 20 years’ experience in machinery
producing. It is positioned in Xihu (West Lake) Dis. CZPT CZPT Park, fifty kilometers to the east of ZheJiang provincial
cash— HangZhou. Our business also has hassle-free site visitors transportation, as it is 15 kilometers away from
Diaozhen City station of HangZhou-HangZhou expressway, and 30 kilometers away from CZPT HangZhou station of
ZheJiang -ZheJiang expressway.The major merchandise of our business is ESR -variety Roots Blower. The roots
vacuum pump is a new variety of large-effectiveness roots blower, which is developed independently based on the
domestic and foreign advanced technologies. Several patented technologies have been adopted on Roots
Blower, and thus we have produced considerable effects in vitality conservation and noise reduction, and many others.. So significantly, our
organization has invested more than 30,000,000 RMB to introduce these kinds of innovative skilled tools as
horizontal machining middle, vertical machining middle, two-way CNC surface planer, CNC lathe, CNC milling
equipment, CNC planer, airplane grinder, cylindrical grinding device, and a few coordinates screening equipment.
In addition to, we have taken numerous measures to CZPTize the process flow these kinds of as operating and cooperating
with many scientific research units, faculties and universities at property and abroad. We also continually attempt to
absorb and improve the domestic sophisticated production technologies, so as to market the upgrading and
optimization of the item and make the merchandise quality reach the innovative degree at house and overseas.
ESR -sort Roots Blower includes a number of collection these kinds of as A few-leaves Variety, Two-leaves Type and Centrifugal
Sort,which can be additional divided to hundreds of varieties. The merchandise are broadly utilised in sewage treatment method,
pneumatic conveying,vacuum packaging, aquaculture, food processing, electric powered power, petrochemical, cement,
mining and other industries. Our goods have these kinds of rewards as reduced sound, power preserving, steady high quality,
and extended support daily life, and so on.. With the revenue outlets throughout the domestic money metropolitan areas, our products sell properly all
above the nation, and have been exported to North CZPTica,Russia, Malaysia, Indonesia, Vietnam, South Africa
and some other nations. Getting received the ISO9001 CZPT CZPT System Certification, we have
set up and improved the good quality assurance of the merchandise developing, manufacturing, and installation.
From the method of design and style, study and advancement to the concluded products, we have obtained the whole
method controlled independently, therefore supplying the total basis and reliability promise for the merchandise balance
and longevity. Possessing a perfect revenue community and right after-sales service, we give our customers with larger-
top quality and a lot more successful services.All personnel of our business sincerely welcome the broad masses of close friends to
guide, and negotiate enterprise with us.

Our Roots Blower Workshop

         Doosn Horzitonal CZPT Centre

The Application of the Roots Blower

Upkeep and inspection
(1) Check out all fasteners and finding pins situations whether or not they are loosening.
(two) Always check regardless of whether the leakage phenomenon of the body.
(three) Pay interest to lubrication, sum of grease and noises when operating,
figure out no matter whether it functions under the necessary situations.
(4) CZPT & grease: The lubricant is for medium load industrial gear oil
(grade 220, kinematic viscosity of 198 ~ 242mm2 / s 40ºC, flash stage ≥ 200ºC)
The grease is butter (synthetic lithium grease penetration 220-250, drop stage ≥
190ºC). Exchange the lubricant and grease soon after initial two hundred hrs managing, and exchange
once again soon after a moth working. Later on, exchange the lubricant and grease in accordance to the
setting and lubricant (grease) good quality propose a ideal replacement for a few
months.
(five) Constantly verify the inlet air filter, thoroughly clean or substitute the filter in time.
(six) Blower overload occasionally not quickly exhibited, so shell out consideration to
the ingestion and exhaust stress, bearing temperature and the recent improve tendencies
of motor to figure out regardless of whether the blower operates generally
(7) Just before disassembling the blower, the assembling relation and dimensions
should be recorded or calculated, make marks on factors to make certain the CZPT
specifications right after assembling.
(8) When recently machine or overhaul, the oil tank should be cleaned prior to use
and propose substitute all grease right after 8 several hours operating.

Typical failure explanation and troubleshooting

No Failure Possible factors Elimination approaches
1 Friction
among the
impeller
(1) Impurities on the impeller,
resulting in the hole is as well small
(two) Gear wear, resulting in a
massive backlash
(3) The equipment is not nicely fastened,
can not sustain the impeller
synchronization
(four) Bearing dress in resulting in
clearance rising.
(1) Get rid of filth and verify
no matter whether there is damage areas
(two) Modify the gear gap, replace
the gears if the equipment backlash is
higher than the regular thirty% to
fifty%
(three)Re-assemble the gears, keep
the taper speak to spot is to seventy five%
(four)Replace the bearing
two Collision
in between
impeller and
wall, the
impeller leading
and casing
(1) Set up hole is not proper
(two) functioning pressure is also
large, exceeding the specified
price
(3) Functioning temperature is way too large
(four) Casing or base deformation,
positioning enthusiast failure
(five) Bearing axial location is not very good
(one) Alter the hole
(two) Discover brings about of
overloading, diminished the pressure
to the specified benefit
(3) Verify the installation
accuracy and minimize the pipe
rigidity
(4) Check out and fix bearings,
and to ensure the clearance
(5)Relocation
3 Temperature
also higher
(one) Oil in tank is also considerably, too
thick or also filthy
(two) CZPT or silencer is blocked
(3)The pressure is larger than
the specified benefit
(four)Abnormal dress in of the
impeller, massive hole
(five)Bad ventilation, indoor
temperature is high, resulting in
inlet air’s large temperature
(6) The rotating velocity is way too lower,outcome in the belt slipping.
(1)Decrease the oil amount or depend on
oil
(2)Get rid of of blocking objects
(3)Lowering the force through
the blower
(4)Restore its clearance
(five)Open up vents to decrease place
temperature
(6) Boost velocity to avoid the
belt slipping.
4 Inadequate
circulation
(1) The inlet filter is blocked
(2) Impeller wear and the hole
raises way too much
(3) Belt slipping
(4) Large imports stress decline
(5) CZPT air flow leakage
(1) Clean the filter dust and
obstruction
(2) Mend the hole
(3)Tighten the belt and increase
the variety of belts
(4)Change the inlet stress to the
specified price
(5) Check out and fix the pipeline
five Oil leaking or
oil leaking
into the enclosure
(one)Higher tank position trigger
leakage from the discharge port
(two) Seal put on, resulting in shaft oil spills
(3) The pressure is greater than
the specified benefit

 
(one)Decrease the oil amount
(2)Change the seals
(3)Obvious the air vents, 2mm diameter faucet is fixed in the
center chamber, open up the faucet
below the wall
6 Abnormal
vibration and
sound
(one)Bearing clearance exceeds the
specified benefit or bearing wear
(two) The equipment backlash is as well
large, not in a limited set
(three) The international objects and dust
induced by the impeller and the
impeller, the impeller and the
housing collision
(four) the impeller shaft
deformation brought on the collision
induced by overload,
(five) Friction between the impeller
and the inlet housing induced by
overheating
(six) Unbalance of the impeller
caused by fouling or overseas
entire body
(seven) CZPT bolts or other
fasteners are loosened
(1)Substitute bearings or bearing
seat
(2)Reassemble gear and guarantee
backlash
(3)Cleaning blower, check the
situation is broken
(four)Examine the again pressure, check out
the wheel and alter hole
(5)Check the filter and back
pressure, boost the hole
among the impeller inlet and the
casing
(six)Cleanse the impeller and the
casing, to guarantee that the impeller
clearance function
(7) Tighten the anchor bolts and
leveling the foundation.
seven Motor
overload
(1)Compared with the essential
pressure, the strain variation
is large that the again pressure or
the inlet pressure is high
(two) When compared with the
products specifications, blower
flow is too huge, so its pressure
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 also substantial
(6) Slim V-belt is overheat,
vibration is also big, or pulley
is too tiny
(one) Reduce the strain to the
specified worth
(two) Exhaust the excessive gasoline into
the atmosphere or reduce the
blower velocity
(3) Eliminate the obstructions
(four)Immediately shut down, check
the cause
(five) Modify the oil to the right
amount
(six) Check the belt rigidity, and
changed it with big diameter
pulley.

Our Services

1. Pre sell service                                                                              two. Following sell service                                          
a. suggest the appropriate model                                             c. on-line specialized assist,                                                                                   
b. manufacturing facility tour                                                                              d. whole lifestyle spare elements and techinical help

Gurantee

12 months gurantee for our roots blowers
 

Double Oil Case Water Cooling High Efficiency Roots Vacuum Pump