New Design High Efficiency High Pressure Roots Blower

New Design High Efficiency High Pressure Roots Blower

We make all types of roots blower, centrifugal blower, Our Major goods are as below:

Kind Diameter Rate of movement Stress
ESR-MJ(Intensive Kind) Φ50~Φ300mm .five~140m³/min nine.8KPa~ninety eight.8Kpa
ESR(Common Sort) Φ50~Φ350mm .five~140m³/min nine.8KPa~seventy eight.4Kpa
ESR-H(Large-stress Variety) Φ50~Φ350mm .7~160m³/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 nine.8KPa~fifty eight.8Kpa
Multistage Centrifugal Blower
or C-Collection
Φ250~Φ500mm fifty~500m³/min nine.8KPa~98Kpa
ERR-ERG Sort Φ250~Φ500mm 120~420m³/min nine.8KPa~ninety eight.8Kpa

The operating basic principle of the three-blade roots blower: two 3-lobed rotors are arranged in the cavity, and the
suction port and the discharge port are opened on both sides of the cavity. By means of the action of a pair of
synchronous gears, the two rotors rotate in opposite directions 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
purpose of blowing.

Attribute of our roots blower:
1. Big adjustment of the air volume
2. Lower Noise
3. High efficiency
four. Reduced vitality cosumption
five. Lengthy time existence
six. Trustworthy working, effortless upkeep,small footprint

The parameters of our roots blower:

Variety Ratary Speed
Stress Rise
Shaft Electricity
Motor Device Maximn
ESR-50 1100-2120 nine.8-fifty eight.8 .65-two.fifty eight .three-three.54 .75-4 128-158
ESR-sixty five 1100-2130 9.8-58.eight .ninety four-3.sixty six .38-four.forty six .seventy five-5.5 a hundred and fifty five-185
ESR-80 1140-1900 9.eight-fifty eight.eight two.34-5.43 1.04-seven.forty two two.two-11 one hundred fifty five-277
ESR-a hundred 1060-1980 nine.8-58.eight four.57-9.05 1.35-twelve.fifteen three-15 309-377
ESR-a hundred twenty five 980-1850 9.eight-fifty eight.eight 5.35-twelve.four 1.65-five.19 five.five-eighteen.5 408-451
ESR-125C 970-1830 9.8-fifty eight.8 7.5-17.57 3.2-18.5 four-22 408-451
ESR-150 810-1730 9.8-fifty eight.eight 10.37-27.15 3.84-forty.eighty two 7.five-45 688-848
ESR-175 970-1520 nine.eight-58.8 19.sixty five-36.65 7.2-forty five.ninety five 11-fifty five 980-1080
ESR-200B 740-1450 nine.8-fifty eight.eight 19.65-forty four.eight ten.fifteen-sixty.44 15-75 1272-1546
ESR-two hundred 810-1480 9.eight-58.8 27.sixty five-59.2 eight.05-eighty,twelve fifteen-ninety 1272-1546
ESR-250B 1100-1480 9.eight-58.eight fifty four.77-seventy seven.fifty five 19.97-90.97 30-110 1490-2454
ESR-250 990-1480 nine.8-58.eight sixty one.4-97.52 twenty.1-117.3 30-132 1490-2454
ESR-three hundred 990-1480 9.8-58.8 26.four-167.8 37-185 3326-3446
ESR-350 730-1480 9.eight-fifty eight.eight seventy eight.41-177.31   55-250  
ESR-50H 1230-2120 sixty three.7-ninety eight .forty five-two.02 2.05-six.twelve 3-seven.five one hundred sixty–one hundred seventy
ESR-65H 1240-2130 sixty three.7-98 .78-2.fifty three two.89-seven.fifty five four-11 198-230
ESR-80H 1140-1900 sixty eight one.eighty two-4.fifty five four.09-ten.1 five.5-fifteen 316-326
ESR-100H 1060-1980 63.7-ninety eight two.65-eight.06 six.36-17.2 seven.five-22 398-459
ESR-125H 980-1850 63.7-ninety eight 4.64-11.23 eight.92-24.2 eleven-30 544-630
ESR-150H 810-1730 9.fifty three-25.seventy six seventeen.sixteen-sixty five 18.five-75 752-1571
ESR-200H 810-1480 sixty three.7-98 25.34-fifty six.ninety two forty two.34-a hundred and twenty fifty five-132 1426-1934
ESR-250H 990-1480 sixty eight 58-ninety three.7 eighty three.2-205 ninety-220 2980-3468
ESR300H 990-1480 86.9-134.1 114.7-270 132-280 3476-3998
ERF-245 650-980 9.8-ninety eight forty seven.five-97.four sixteen-183 18.5-two hundred 3630-3690
ERF-250 650-980 9.eight-ninety eight sixty one.6-120.4 19-227 22-250 4450-4500
ERF-290 650-980 nine.8-seventy eight.4 ninety two.three-128 22-213 thirty-250 4890-4710
ERF-295 650-980 9.eight-78.four 97.three-152.five 23-227 30-250 4890-4880
ERF-297 650-980 nine.eight-seventy eight.four 87.five-167.6 26-249 30-280 5330-5520
ERF-three hundred 650-980 9.8-seventy eight.4 a hundred and one.five-188.7 29-278 37-315 5330-5520
ERF-350 650-980 nine.eight-seventy eight.4 126-224.9 34-249 45-280 5210-6470
ERG-three hundred 590-730 nine.8-ninety eight 128.three-196 38-362 forty five-four hundred 9440-15710
ERG-350 590-730 nine.eight-98 159.3-231.six forty three-420 fifty five-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.five 58-477 75-560 10600-12230
ERG-450 590-730 9.8-73.five 262.four-366.two sixty four-496 75-560 10600-12230
ERG-500 590-730 327.four-452.4 78-529 ninety-560 12790-14620
ERF-240-V 650-980 -nine.8- -forty nine 38.1-seventy eight 13-seventy six 18.5-90 3420-3285
ERF-245-V 650-980 -9.8- -forty nine 47.5-97.4 16-ninety five 22-110 3425-3360
ERF-250-V 650-980 -nine.eight- -49 63-a hundred and twenty 19-117 22-132 3910-3830
ERF-290-V 650-980 -9.eight- -forty nine 72.6-144 22-136 30-160 4415-4270
ERF-295-V 650-980 -nine.eight- -49 seventy six.6-152 23-a hundred forty five 30-160 4425-4485
ERF-297-V 650-980 -9.8- -forty nine 84.three-166.8 26-160 30-180 5000-4980
ERF-300-V 650-980 -nine.eight- -forty nine 97-192 29-178 37-two hundred 5000-4980
ERF-350-V 650-980 -nine.eight- -forty nine 116-225 34-209 45-250 5400-5700
ERG-300V 590-730 -9.8- -49 133-193 38-184 45-220 7800-9100
ERG-350V 590-730 -nine.8- -49 163-231 forty three-216 fifty five-250 9500-9470
ERG-400V 590-730 -9.8- -49 199-290 fifty two-269 seventy five-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 -9.8- -forty nine 255-365 sixty four-335 75-400 11230-11300
ERG-500V 590-730 -9.8- -49 314-452 78-412 132-450 13630-13850
ERF-245W 650-980 -13.three- -fifty three.three 53.five-one hundred and one 21.five-102 thirty-a hundred and ten 3630-3360
ERF-250W 650-980 -thirteen.3- -53.three sixty nine-127 26.5-127 thirty-160 3985-4115
ERF-290W 650-980 -thirteen.three- -fifty three.three 82.six-one hundred fifty thirty.five-149 37-185 4340-4580
ERF-295W 650-980 -thirteen.3- -fifty three.3 87-158 32-158 37-185 4440-4580
ERF-297W 650-980 -thirteen.three- -53.three 95-174 36-174 forty five-two hundred 5230-5130
ERF-300W 650-980 -thirteen.3- -53.three 109-195 40-193 55-220 5230-5130
ERF-350W 650-980 -thirteen.three- -fifty three.3 129-230 50-230 seventy five-250 5840-5670
ERG-300W 590-730 -13.three- -fifty three.3 142-197 52-201 seventy five-220 9100-9000
ERF-350W 590-730 -thirteen.three- -53.three 168-234.four fifty nine-235.five 75-280 9500-9600
ERG-400W 590-730 -thirteen.three- -53.3 220-276.6 seventy one-292 ninety-315 9900-10130
ERG-445W 590-730 -13.3- -fifty three.3 244-294.six 82-331 90-four hundred 11230-11300
ERG450W 590-730 -thirteen.three- -fifty three.three 275-368.5 91-366 one hundred ten-four hundred 11230-11300
650-980 98-196 sixty four.eight-112 one hundred thirty five-355 160-400 8700-8600
650-980 98-196 80.8-139 167-439 185-five hundred 9200-9100
650-980 ninety eight-176.four 102-174 206-497 250-560 10320-10500
650-980 ninety eight-137.2 124-207 241-473 280-560 10700-11110
(three hundred,400)
590-740 98-176.4 205-273 380-773 450-900 21350-24200
590-740 ninety eight-176.four 263-428 476-955 560-one thousand 24200-27600
650-980 -fifty three.three–80 seventy two-121 seventy five.six-121 90-160 6100-6470
650-980 -fifty three.three–80 93.8-154 99.five-186 110-220 7000-6400
650-980 -fifty three.three–80 116-189 a hundred and fifteen-220 132-250 7750-7760
EL81WD 580-980 nine.eight-58.eight fifty four.2-130 18-151 45-185 3595
EL82WDB 580-980 nine.eight-58.8 seventy two.eight-161 22-191 forty five-220 3860
EL83WDA 580-980 9.eight-fifty eight.9 a hundred and one-213 28.five-202 forty five-220 4300
EL84WDA 580-980 9.8-fifty eight.8 129-267 35.4-252 forty five-280 4720
EL93WDA 580-730 9.eight-49 230-329 56.four-311 seventy five-355 7765
EL94WDA 580-730 9.eight-49 263-373 sixty four-353 seventy five-400 8130
EL95WDA 490-580 9.eight-58.eight 308-434 81.4-414 ninety-450 11500
EL96WDA 580 58.eight 381 497 560 11500
E397WN a thousand-1650 40 five-nine      
E408WN 870-1650 forty 10-22      
E517WN 980-1580 forty twenty-thirty      
E520WN 930-1550 40 24-forty five      
E607WN 750-1250 forty forty five-seventy six      
E610WN 750-1250 forty seventy five-one hundred thirty      

Spare parts and construction of our roots blower:

Package of our Roots Blower

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

Roots blower pack method exact same as iron situation, just adjust to Fumigation Free Plywood Situation

Our factory is a professional manufacturer of Roots blowers which has over twenty years’ experience in equipment
producing. It is situated in Xihu (West Lake) Dis. CZPT CZPT Park, 50 kilometers to the east of ZheJiang provincial
money— HangZhou. Our business also has handy traffic transportation, as it is fifteen kilometers absent from
Diaozhen Town station of HangZhou-HangZhou expressway, and 30 kilometers away from CZPT HangZhou station of
ZheJiang -ZheJiang expressway.The foremost merchandise of our firm is ESR -kind Roots Blower. The roots
vacuum pump is a new variety of substantial-efficiency roots blower, which is developed independently primarily based on the
domestic and foreign superior systems. Numerous patented technologies have been adopted on Roots
Blower, and hence we have manufactured significant outcomes in energy conservation and noise reduction, etc.. So much, our
company has invested far more than 30,000,000 RMB to introduce these kinds of sophisticated specialist gear as
horizontal machining heart, vertical machining middle, two-way CNC surface planer, CNC lathe, CNC milling
device, CNC planer, aircraft grinder, cylindrical grinding machine, and three coordinates screening device.
Apart from, we have taken a variety of measures to CZPTize the method flow this kind of as doing work and cooperating
with many scientific research units, schools and universities at house and overseas. We also constantly try to
absorb and boost the domestic innovative manufacturing systems, so as to encourage the upgrading and
optimization of the item and make the solution good quality achieve the superior degree at home and overseas.
ESR -sort Roots Blower involves several collection these kinds of as Three-leaves Sort, Two-leaves Sort and Centrifugal
Kind,which can be more divided to hundreds of types. The merchandise are extensively utilized in sewage treatment,
pneumatic conveying,vacuum packaging, aquaculture, foodstuff processing, electric powered energy, petrochemical, cement,
mining and other industries. Our products have these kinds of rewards as minimal sounds, vitality saving, secure high quality,
and lengthy support existence, and so on.. With the product sales outlets throughout the domestic funds towns, our goods offer effectively all
more than the region, and have been exported to North CZPTica,Russia, Malaysia, Indonesia, Vietnam, South Africa
and some other international locations. Obtaining received the ISO9001 CZPT CZPT System Certification, we have
proven and enhanced the top quality assurance of the items planning, production, and installation.
From the procedure of design and style, investigation and development to the finished merchandise, we have acquired the whole
procedure controlled independently, therefore supplying the complete foundation and dependability assure for the items balance
and durability. Having a perfect revenue community and soon after-sales support, we offer our buyers with larger-
quality and far more productive service.All staff of our company sincerely welcome the broad masses of close friends to
manual, and negotiate business with us.

Our Roots Blower Workshop

         Doosn Horzitonal CZPT Middle

The Software of the Roots Blower

Upkeep and inspection
(one) Examine all fasteners and locating pins situations whether they are loosening.
(two) Constantly verify regardless of whether the leakage phenomenon of the human body.
(3) Spend consideration to lubrication, volume of grease and noises when running,
establish regardless of whether it operates underneath the essential circumstances.
(4) CZPT & grease: The lubricant is for medium load industrial equipment oil
(quality 220, kinematic viscosity of 198 ~ 242mm2 / s 40ºC, flash level ≥ 200ºC)
The grease is butter (synthetic lithium grease penetration 220-250, drop point ≥
190ºC). Exchange the lubricant and grease soon after initial 200 hours working, and replace
yet again soon after a moth running. Afterwards, substitute the lubricant and grease according to the
environment and lubricant (grease) top quality suggest a suitable substitute for a few
(five) Always examine the inlet air filter, thoroughly clean or replace the filter in time.
(six) Blower overload occasionally not instantly exhibited, so pay out interest to
the intake and exhaust force, bearing temperature and the present boost traits
of motor to determine whether or not the blower operates usually
(7) Before disassembling the blower, the assembling relation and proportions
need to be recorded or calculated, make marks on elements to ensure the CZPT
needs following assembling.
(eight) When freshly device or overhaul, the oil tank must be cleaned just before use
and propose replace all grease after 8 hrs running.

Frequent failure purpose and troubleshooting

No Failure Achievable motives Elimination strategies
1 Friction
among the
(1) Impurities on the impeller,
resulting in the hole is as well modest
(two) Gear put on, ensuing in a
large backlash
(three) The gear is not effectively mounted,
can not preserve the impeller
(four) Bearing dress in ensuing in
clearance increasing.
(one) Take away filth and check
no matter whether there is damage elements
(2) Alter the gear gap, substitute
the gears if the gear backlash is
greater than the regular 30% to
(3)Re-assemble the gears, hold
the taper speak to spot is to 75%
(four)Change the bearing
two Collision
impeller and
wall, the
impeller prime
and casing
(one) Set up gap is not correct
(2) running stress is way too
high, exceeding the specified
(3) Running temperature is also substantial
(four) Casing or base deformation,
positioning supporter failure
(5) Bearing axial place is not great
(one) Alter the hole
(2) Discover triggers of
overloading, lowered the strain
to the specified worth
(three) Check the installation
precision and reduce the pipe
(4) Verify and restore bearings,
and to guarantee the clearance
3 Temperature
as well higher
(one) Oil in tank is way too significantly, too
thick or too dirty
(two) CZPT or silencer is blocked
(3)The stress is greater than
the specified benefit
(four)Extreme use of the
impeller, huge gap
(5)Inadequate air flow, indoor
temperature is large, ensuing in
inlet air’s large temperature
(six) The rotating speed is way too minimal,outcome in the belt slipping.
(1)Reduce the oil level or count on
(2)Remove of blocking objects
(three)Minimizing the force via
the blower
(4)Repair its clearance
(5)Open vents to lessen space
(6) Increase pace to avert the
belt slipping.
4 Insufficient
(one) The inlet filter is blocked
(two) Impeller put on and the gap
raises too significantly
(3) Belt slipping
(four) Huge imports stress loss
(5) CZPT air flow leakage
(one) Clear the filter dust and
(two) Restore the hole
(3)Tighten the belt and increase
the variety of belts
(four)Change the inlet pressure to the
specified price
(5) Check and restore the pipeline
five Oil leaking or
oil leaking
into the enclosure
(one)Higher tank position lead to
leakage from the discharge port
(2) Seal wear, ensuing in shaft oil spills
(3) The stress is larger than
the specified worth

(1)Minimize the oil amount
(2)Substitute the seals
(three)Obvious the air vents, 2mm diameter faucet is set in the
center chamber, open the faucet
below the wall
6 Abnormal
vibration and
(one)Bearing clearance exceeds the
specified value or bearing wear
(two) The equipment backlash is too
massive, not in a limited set
(3) The overseas objects and dust
caused by the impeller and the
impeller, the impeller and the
housing collision
(4) the impeller shaft
deformation induced the collision
induced by overload,
(five) Friction between the impeller
and the inlet housing brought on by
(6) Unbalance of the impeller
caused by fouling or international
(7) CZPT bolts or other
fasteners are loosened
(1)Change bearings or bearing
(2)Reassemble equipment and ensure
(3)Cleansing blower, check the
case is destroyed
(four)Check the back again strain, examine
the wheel and change hole
(5)Check the filter and back again
strain, improve the gap
amongst the impeller inlet and the
(six)Thoroughly clean the impeller and the
casing, to guarantee that the impeller
clearance operate
(7) Tighten the anchor bolts and
leveling the foundation.
7 Motor
(1)Compared with the required
stress, the pressure big difference
is massive that the back pressure or
the inlet strain is high
(2) When compared with the
products demands, blower
flow is also big, so its pressure
(3)Inlet filter is blocked, or outlet
pipe is obstructed or blocked
(four) Collusion or friction (caught)
rotating parts
(5) The oil level is also substantial
(six) Slender V-belt is overheat,
vibration is also massive, or pulley
is also little
(1) Decrease the pressure to the
specified price
(two) Exhaust the extra gasoline into
the atmosphere or lessen the
blower velocity
(3) Take away the obstructions
(4)Instantly shut down, check
the purpose
(five) Change the oil to the appropriate
(6) Check the belt tension, and
replaced it with big diameter

Our Service

one. Pre offer service                                                                              2. Soon after promote service                                          
a. advocate the suitable model                                             c. on-line technological assistance,                                                                                   
b. manufacturing facility tour                                                                              d. whole daily life spare components and techinical assistance


twelve months gurantee for our roots blowers

New Design High Efficiency High Pressure Roots Blower