Anti Corrision Roots Blower for Pheumatic

Anti Corrision Roots Blower for Pheumatic

We make all varieties of roots blower, centrifugal blower, Our Principal products are as beneath:

Sort Diameter Price of flow Stress
ESR-MJ(Intensive Sort) Φ50~Φ300mm .5~140m³/min 9.8KPa~ninety eight.8Kpa
ESR(Regular Variety) Φ50~Φ350mm .five~140m³/min 9.8KPa~78.4Kpa
ESR-H(Large-force Sort) Φ50~Φ350mm .7~160m³/min fifty eight.8KPa~98.8Kpa
ESR-V(Vacuum Pump) Φ50~Φ350mm .five~160m³/min nine.8KPa~fifty three.3Kpa
EL Sequence Φ200~Φ600mm 20.3~750m³/min nine.8KPa~58.8Kpa
Multistage Centrifugal Blower
or C-Collection
Φ250~Φ500mm 50~500m³/min nine.8KPa~98Kpa
ERR-ERG Sort Φ250~Φ500mm 120~420m³/min 9.8KPa~98.8Kpa

The working 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 both sides of the cavity. By way of the motion of a pair of
synchronous gears, the two rotors rotate in opposite instructions and Relying on the mutual engagement of the two
rotors, the suction port and the discharge port are isolated, and the gasoline in the chamber is pushed to obtain the
function of blowing.

Attribute of our roots blower:
1. Massive adjustment of the air volume
two. Reduced Noise
3. Substantial efficiency
four. Minimal energy cosumption
5. Extended time lifestyle
6. Reputable managing, simple upkeep,little footprint

The parameters of our roots blower:

Sort Ratary Speed
Stress Increase
Shaft Energy
Motor Unit Maximn
ESR-fifty 1100-2120 nine.eight-fifty eight.eight .65-two.58 .3-3.fifty four .75-four 128-158
ESR-65 1100-2130 nine.eight-fifty eight.8 .ninety four-3.sixty six .38-four.forty six .75-5.five 155-185
ESR-eighty 1140-1900 9.eight-fifty eight.eight 2.34-five.forty three 1.04-7.forty two 2.2-11 a hundred and fifty five-277
ESR-a hundred 1060-1980 9.8-58.8 4.fifty seven-nine.05 one.35-twelve.fifteen 3-fifteen 309-377
ESR-125 980-1850 nine.eight-58.eight five.35-twelve.four 1.sixty five-five.19 5.five-18.5 408-451
ESR-125C 970-1830 9.8-58.8 seven.five-seventeen.fifty seven three.2-eighteen.five 4-22 408-451
ESR-150 810-1730 9.8-fifty eight.8 10.37-27.15 three.84-40.82 seven.five-45 688-848
ESR-one hundred seventy five 970-1520 nine.8-fifty eight.8 19.65-36.sixty five 7.2-45.ninety five 11-55 980-1080
ESR-200B 740-1450 9.eight-58.8 19.65-forty four.eight ten.fifteen-60.44 15-seventy five 1272-1546
ESR-200 810-1480 9.eight-fifty eight.8 27.65-fifty nine.two 8.05-80,twelve 15-90 1272-1546
ESR-250B 1100-1480 9.eight-fifty eight.eight 54.77-77.55 19.97-ninety.97 30-a hundred and ten 1490-2454
ESR-250 990-1480 nine.eight-58.eight sixty one.4-97.fifty two 30-132 1490-2454
ESR-300 990-1480 9.eight-58.eight 87.1-138.1 26.4-167.eight 37-185 3326-3446
ESR-350 730-1480 nine.8-fifty eight.eight seventy eight.41-177.31   fifty five-250  
ESR-50H 1230-2120 63.7-98 .45-two.02 two.05-6.12 3-7.5 a hundred and sixty–170
ESR-65H 1240-2130 sixty three.7-ninety eight .78-2.fifty three two.89-7.55 four-eleven 198-230
ESR-80H 1140-1900 sixty three.7-ninety eight 1.82-4.55 five.5-fifteen 316-326
ESR-100H 1060-1980 63.7-98 2.sixty five-eight.06 six.36-17.two 7.5-22 398-459
ESR-125H 980-1850 sixty three.7-98 four.64-11.23 eight.92-24.2 eleven-30 544-630
ESR-150H 810-1730 sixty three.7-98 9.fifty three-25.76 17.16-sixty five 18.5-seventy five 752-1571
ESR-200H 810-1480 sixty 25.34-56.ninety two forty two.34-a hundred and twenty 55-132 1426-1934
ESR-250H 990-1480 eight eighty three.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 9.eight-ninety eight 47.five-ninety seven.four 16-183 18.five-200 3630-3690
ERF-250 650-980 9.eight-98 61.6-a hundred and twenty.4 19-227 22-250 4450-4500
ERF-290 650-980 9.eight-seventy eight.4 92.3-128 22-213 30-250 4890-4710
ERF-295 650-980 nine.eight-seventy eight.four ninety seven.3-152.5 23-227 30-250 4890-4880
ERF-297 650-980 9.8-seventy eight.four 87.5-167.six 26-249 30-280 5330-5520
ERF-300 650-980 nine.8-seventy eight.4 29-278 37-315 5330-5520
ERF-350 650-980 nine.8-seventy eight.4 126-224.nine 34-249 45-280 5210-6470
ERG-300 590-730 nine.8-98 128.three-196 38-362 forty five-four hundred 9440-15710
ERG-350 590-730 9.eight-98 159.3-231.six forty three-420 55-450 9700-1571
ERG-400 590-730 nine.8-83.three 203.1-290.9 fifty two-449 75-500 10090-11390
ERG-445 590-730 9.8-73.5 fifty eight-477 75-560 10600-12230
ERG-450 590-730 9.8-73.5 262.4-366.2 64-496 75-560 10600-12230
ERG-500 590-730 9.eight-63.7 327.four-452.4 78-529 ninety-560 12790-14620
ERF-240-V 650-980 -nine.eight- -forty nine 13-seventy six eighteen.5-90 3420-3285
ERF-245-V 650-980 -nine.eight- -49 forty seven.5-ninety seven.4 16-ninety five 22-a hundred and ten 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.eight- -forty nine seventy two.6-one hundred forty four 22-136 30-a hundred and sixty 4415-4270
ERF-295-V 650-980 -nine.eight- -49 seventy six.6-152 23-a hundred forty five thirty-one hundred sixty 4425-4485
ERF-297-V 650-980 -9.8- -forty nine 84.three-166.eight 26-a hundred and sixty 30-a hundred and eighty 5000-4980
ERF-300-V 650-980 -nine.eight- -49 97-192 29-178 37-two hundred 5000-4980
ERF-350-V 650-980 -nine.eight- -49 116-225 34-209 45-250 5400-5700
ERG-300V 590-730 -9.8- -forty nine 133-193 38-184 45-220 7800-9100
ERG-350V 590-730 -nine.8- -forty nine 163-231 forty three-216 55-250 9500-9470
ERG-400V 590-730 -nine.eight- -forty nine 199-290 52-269 75-315 9900-10130
ERG-445V 590-730 -nine.eight- -forty nine 224.8-326.nine fifty eight-303 seventy five-355 9900-10130
ERG-450V 590-730 -9.eight- -forty nine 255-365 sixty four-335 seventy five-400 11230-11300
ERG-500V 590-730 -9.8- -49 314-452 78-412 132-450 13630-13850
ERF-245W 650-980 -13.3- -53.3 53.5-a hundred and one 21.five-102 30-a hundred and ten 3630-3360
ERF-250W 650-980 -thirteen.three- -fifty three.3 sixty nine-127 26.5-127 thirty-160 3985-4115
ERF-290W 650-980 -13.three- -53.3 82.6-one hundred fifty 30.five-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 -thirteen.3- -fifty three.three 95-174 36-174 forty five-two hundred 5230-5130
ERF-300W 650-980 -13.three- -53.three 109-195 40-193 55-220 5230-5130
ERF-350W 650-980 -thirteen.three- -53.three 129-230 50-230 75-250 5840-5670
ERG-300W 590-730 -13.3- -53.3 142-197 52-201 75-220 9100-9000
ERF-350W 590-730 -13.three- -fifty three.3 168-234.4 fifty nine-235.5 seventy five-280 9500-9600
ERG-400W 590-730 -13.three- -53.3 220-276.six 71-292 90-315 9900-10130
ERG-445W 590-730 -thirteen.3- -fifty three.3 244-294.six eighty two-331 90-four hundred 11230-11300
ERG450W 590-730 -thirteen.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 one hundred sixty-four hundred 8700-8600
650-980 ninety eight-196 eighty.8-139 167-439 185-five hundred 9200-9100
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 98-176.four 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 -53.3–80 seventy two-121 seventy five.6-121 ninety-160 6100-6470
650-980 -fifty three.three–80 93.8-154 ninety nine.five-186 a hundred and ten-220 7000-6400
(2505/three hundred)
650-980 -53.three–80 116-189 a hundred and fifteen-220 132-250 7750-7760
EL81WD 580-980 nine.eight-fifty eight.eight 54.two-one hundred thirty 18-151 45-185 3595
EL82WDB 580-980 nine.eight-fifty eight.8 72.8-161 22-191 45-220 3860
EL83WDA 580-980 nine.eight-fifty eight.nine one hundred and one-213 28.5-202 45-220 4300
EL84WDA 580-980 9.8-fifty eight.8 129-267 35.4-252 forty five-280 4720
EL93WDA 580-730 9.8-forty nine 230-329 56.4-311 75-355 7765
EL94WDA 580-730 nine.8-49 263-373 sixty four-353 seventy five-400 8130
EL95WDA 490-580 nine.eight-58.8 308-434 eighty one.4-414 90-450 11500
EL96WDA 580 fifty eight.eight 381 497 560 11500
E397WN one thousand-1650 40 5-nine      
E408WN 870-1650 forty 10-22      
E517WN 980-1580 40 twenty-thirty      
E520WN 930-1550 forty 24-45      
E607WN 750-1250 forty forty five-seventy six      
E610WN 750-1250 forty seventy five-130      

Spare components and construction of our roots blower:

Bundle of our Roots Blower

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

Roots blower pack approach identical as iron circumstance, just adjust to Fumigation Cost-free Plywood Scenario

Our manufacturing unit is a professional manufacturer of Roots blowers which has more than twenty years’ experience in machinery
production. It is found in Xihu (West Lake) Dis. CZPT CZPT Park, 50 kilometers to the east of ZheJiang provincial
cash— HangZhou. Our organization also has handy traffic transportation, as it is 15 kilometers away from
Diaozhen City station of HangZhou-HangZhou expressway, and thirty kilometers absent from CZPT HangZhou station of
ZheJiang -ZheJiang expressway.The top merchandise of our company is ESR -type Roots Blower. The roots
vacuum pump is a new sort of large-performance roots blower, which is produced independently based on the
domestic and foreign advanced technologies. Several patented technologies have been adopted on Roots
Blower, and therefore we have produced considerable effects in power conservation and noise reduction, and so forth.. So much, our
business has invested much more than 30,000,000 RMB to introduce this kind of sophisticated expert equipment as
horizontal machining centre, vertical machining middle, two-way CNC surface planer, CNC lathe, CNC milling
device, CNC planer, airplane grinder, cylindrical grinding equipment, and three coordinates testing device.
Aside from, we have taken different actions to CZPTize the process stream such as doing work and cooperating
with many scientific research units, colleges and universities at home and abroad. We also continually consider to
absorb and increase the domestic innovative manufacturing technologies, so as to market the upgrading and
optimization of the item and make the merchandise top quality get to the advanced degree at home and abroad.
ESR -type Roots Blower contains many series this sort of as A few-leaves Variety, Two-leaves Kind and Centrifugal
Sort,which can be further divided to hundreds of kinds. The products are widely utilised in sewage remedy,
pneumatic conveying,vacuum packaging, aquaculture, foods processing, electric powered energy, petrochemical, cement,
mining and other industries. Our items have such advantages as reduced sounds, strength saving, secure good quality,
and long support lifestyle, and many others.. With the revenue outlets throughout the domestic money metropolitan areas, our products promote well all
over the nation, and have been exported to North CZPTica,Russia, Malaysia, Indonesia, Vietnam, South Africa
and some other nations. Possessing got the ISO9001 CZPT CZPT Method Certification, we have
recognized and enhanced the top quality assurance of the products creating, production, and installation.
From the procedure of layout, analysis and advancement to the completed items, we have got the entire
method managed independently, hence providing the complete basis and reliability ensure for the merchandise balance
and sturdiness. Having a perfect income network and after-income services, we provide our consumers with higher-
top quality and more successful provider.All workers of our firm 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

Maintenance and inspection
(one) Examine all fasteners and locating pins problems regardless of whether they are loosening.
(2) Often verify regardless of whether the leakage phenomenon of the body.
(3) Spend interest to lubrication, quantity of grease and noises when managing,
establish whether or not it functions under the required problems.
(four) CZPT & grease: The lubricant is for medium load industrial gear oil
(quality 220, kinematic viscosity of 198 ~ 242mm2 / s 40ºC, flash level ≥ 200ºC)
The grease is butter (artificial lithium grease penetration 220-250, drop stage ≥
190ºC). Substitute the lubricant and grease following first two hundred hours operating, and substitute
once again following a moth operating. Afterwards, change the lubricant and grease according to the
surroundings and lubricant (grease) quality suggest a ideal replacement for three
(5) Always examine the inlet air filter, clean or exchange the filter in time.
(6) Blower overload occasionally not immediately exhibited, so pay attention to
the consumption and exhaust force, bearing temperature and the present enhance developments
of motor to figure out whether or not the blower performs generally
(7) Prior to disassembling the blower, the assembling relation and proportions
should be recorded or measured, make marks on parts to make certain the CZPT
demands after assembling.
(8) When freshly equipment or overhaul, the oil tank should be cleaned just before use
and propose change all grease soon after 8 several hours running.

Frequent failure cause and troubleshooting

No Failure Feasible motives Elimination techniques
1 Friction
among the
(1) Impurities on the impeller,
resulting in the hole is as well little
(two) Gear put on, ensuing in a
huge backlash
(three) The equipment is not effectively fastened,
can not maintain the impeller
(four) Bearing wear resulting in
clearance rising.
(1) Take away grime and check
no matter whether there is injury elements
(2) Adjust the equipment hole, exchange
the gears if the gear backlash is
higher than the common thirty% to
(three)Re-assemble the gears, preserve
the taper make contact with area is to seventy five%
(4)Exchange the bearing
2 Collision
in between
impeller and
wall, the
impeller prime
and casing
(one) Installation gap is not correct
(two) operating strain is too
higher, exceeding the specified
(3) Operating temperature is as well large
(4) Casing or base deformation,
positioning fan failure
(5) Bearing axial place is not good
(1) Adjust the gap
(2) Recognize brings about of
overloading, diminished the stress
to the specified benefit
(three) Examine the set up
accuracy and minimize the pipe
(4) Check and mend bearings,
and to guarantee the clearance
three Temperature
too substantial
(1) Oil in tank is also a lot, too
thick or also dirty
(two) CZPT or silencer is blocked
(three)The strain is higher than
the specified worth
(four)Excessive wear of the
impeller, massive gap
(five)Poor ventilation, indoor
temperature is higher, ensuing in
inlet air’s higher temperature
(6) The rotating velocity is also low,end result in the belt slipping.
(one)Minimize the oil amount or count on
(two)Remove of blocking objects
(3)Reducing the force by way of
the blower
(four)Mend its clearance
(five)Open vents to lessen space
(six) Improve pace to avoid the
belt slipping.
4 Insufficient
(1) The inlet filter is blocked
(2) Impeller use and the gap
raises too much
(three) Belt slipping
(four) Big imports stress decline
(five) CZPT ventilation leakage
(one) Clean the filter dust and
(two) Repair the hole
(three)Tighten the belt and enhance
the variety of belts
(4)Adjust the inlet strain to the
specified price
(5) Check out and restore the pipeline
5 Oil leaking or
oil leaking
into the enclosure
(1)Higher tank placement cause
leakage from the discharge port
(two) Seal dress in, resulting in shaft oil spills
(3) The stress is greater than
the specified price

(one)Minimize the oil stage
(two)Replace the seals
(3)Obvious the air vents, 2mm diameter faucet is fixed in the
middle chamber, open the faucet
beneath the wall
six Irregular
vibration and
(one)Bearing clearance exceeds the
specified worth or bearing dress in
(two) The equipment backlash is as well
huge, not in a tight fastened
(three) The overseas objects and dust
triggered by the impeller and the
impeller, the impeller and the
housing collision
(four) the impeller shaft
deformation brought on the collision
triggered by overload,
(5) Friction among the impeller
and the inlet housing brought on by
(6) Unbalance of the impeller
triggered by fouling or overseas
(seven) CZPT bolts or other
fasteners are loosened
(1)Exchange bearings or bearing
(2)Reassemble equipment and guarantee
(three)Cleansing blower, examine the
case is damaged
(four)Check the back again stress, check out
the wheel and change gap
(5)Check the filter and back
strain, improve the gap
amongst the impeller inlet and the
(6)Thoroughly clean the impeller and the
casing, to guarantee that the impeller
clearance work
(seven) Tighten the anchor bolts and
leveling the base.
7 Motor
(1)Compared with the needed
pressure, the force distinction
is massive that the back pressure or
the inlet stress is high
(two) In comparison with the
equipment requirements, blower
circulation is too large, so its strain
(3)Inlet filter is blocked, or outlet
pipe is obstructed or blocked
(4) Collusion or friction (stuck)
rotating parts
(five) The oil level is as well higher
(six) Narrow V-belt is overheat,
vibration is also large, or pulley
is way too modest
(1) Reduce the force to the
specified worth
(two) Exhaust the extra gas into
the environment or lessen the
blower velocity
(three) Remove the obstructions
(four)Immediately shut down, check out
the explanation
(five) Adjust the oil to the appropriate
(6) Examine the belt pressure, and
replaced it with huge diameter

Our Services

1. Pre sell service                                                                              two. Following market service                                          
a. advocate the suited model                                             c. on the internet technical help,                                                                                   
b. factory tour                                                                              d. total lifestyle spare components and techinical assistance


twelve months gurantee for our roots blowers

Anti Corrision Roots Blower for Pheumatic


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