
We offer OEM support. With many years’ encounter in these traces, we have been distinguished from other suppliers in China by our rewards in competitive pricing, on-time delivery, prompt responses, on-hand engineering assistance and good right after-revenue services. Trying to keep in head that great services is the important to cooperating with clientele, we try to meet up with substantial quality requirements, offer you aggressive prices and ensure prompt shipping. We make all varieties of roots blower, centrifugal blower, Our Primary products are as below:
| Kind | Diameter | Rate of circulation | Stress |
| ESR-MJ(Intense Variety) | Phi50~ Phi300mm | .five~140m sup3/min | 9.8KPa~ninety eight.8Kpa |
| ESR(Ordinary Sort) | Phi50~ Phi350mm | .5~140m sup3/min | nine.8KPa~seventy eight.4Kpa |
| ESR-H(EPT-stress Variety) | Phi50~ Phi350mm | .7~160m sup3/min | fifty eight.8KPa~ninety eight.8Kpa |
| ESR-V(Vacuum EPT) | Phi50~ Phi350mm | .five~160m sup3/min | nine.8KPa~fifty three.3Kpa |
| EL Sequence | Phi200~ Phi600mm | 20.three~750m sup3/min | nine.8KPa~58.8Kpa |
| Multistage Centrifugal Blower or C-Collection |
Phi250~ Phi500mm | fifty~500m sup3/min | 9.8KPa~98Kpa |
| ERR-ERG Sort | Phi250~ Phi500mm | 120~420m sup3/min | nine.8KPa~98.8Kpa |
The operating theory of the three-blade roots blower: two three-lobed rotors are organized in the cavity, and the
suction port and the discharge port are opened on each sides of the cavity. Via the action of a pair of
synchronous EPTs, 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 attain the
goal of blowing.
Function of our roots blower:
one. Huge adjustment of the air quantity
two. Lower Noise
3. EPT performance
four. Reduced energy cosumption
five. EPTT time daily life
6. Reputable managing, straightforward maintenance,tiny footprint
The parameters of our roots blower:
| Variety | Ratary Speed (r/min) |
Force Rise (Kpa) |
Capability (m/min) |
Shaft EPTT (Kw) |
EPT | Device MaXiHu (West EPT) Dis.mn Excess weight(Kg) |
| EPTT (Kw) |
||||||
| ESR-50 | 1100-2120 | nine.8-58.eight | .65-two.fifty eight | .three-3.54 | .seventy five-4 | 128-158 |
| ESR-65 | 1100-2130 | 9.eight-58.8 | .ninety four-three.66 | .38-4.46 | .75-five.5 | a hundred and fifty five-185 |
| ESR-80 | 1140-1900 | 9.8-fifty eight.eight | two.34-5.43 | 1.04-seven.42 | 2.2-11 | one hundred fifty five-277 |
| ESR-100 | 1060-1980 | nine.eight-fifty eight.8 | 4.fifty seven-nine.05 | one.35-12.15 | 3-fifteen | 309-377 |
| ESR-a hundred twenty five | 980-1850 | 9.8-58.8 | 5.35-12.four | one.sixty five-5.19 | 5.5-eighteen.five | 408-451 |
| ESR-125C | 970-1830 | 9.8-fifty eight.eight | 7.5-seventeen.fifty seven | three.2-eighteen.five | 4-22 | 408-451 |
| ESR-a hundred and fifty | 810-1730 | nine.eight-58.eight | 10.37-27.fifteen | three.84-40.eighty two | seven.five-forty five | 688-848 |
| ESR-a hundred seventy five | 970-1520 | nine.eight-58.eight | 19.65-36.65 | 7.two-45.95 | 11-55 | 980-1080 |
| ESR-200B | 740-1450 | nine.8-58.eight | 19.65-44.8 | ten.fifteen-sixty.forty four | fifteen-75 | 1272-1546 |
| ESR-two hundred | 810-1480 | nine.8-fifty eight.8 | 27.sixty five-59.2 | 8.05-eighty,twelve | 15-ninety | 1272-1546 |
| ESR-250B | 1100-1480 | nine.eight-fifty eight.8 | 54.77-77.55 | 19.ninety seven-ninety.97 | 30-a hundred and ten | 1490-2454 |
| ESR-250 | 990-1480 | 9.eight-58.eight | sixty one.four-ninety seven.52 | twenty.one-117.3 | thirty-132 | 1490-2454 |
| ESR-300 | 990-1480 | nine.8-58.8 | 87.one-138.1 | 26.4-167.8 | 37-185 | 3326-3446 |
| ESR-350 | 730-1480 | 9.eight-58.8 | seventy eight.41-177.31 | fifty five-250 | ||
| ESR-50H | 1230-2120 | sixty three.7-ninety eight | .45-two.02 | 2.05-six.12 | 3-7.five | a hundred and sixty–a hundred and seventy |
| ESR-65H | 1240-2130 | 63.seven-98 | .78-two.fifty three | two.89-seven.fifty five | four-11 | 198-230 |
| ESR-80H | 1140-1900 | 63.seven-98 | 1.82-4.55 | 4.09-ten.1 | five.five-15 | 316-326 |
| ESR-100H | 1060-1980 | sixty three.7-ninety eight | 2.65-eight.06 | six.36-17.2 | seven.five-22 | 398-459 |
| ESR-125H | 980-1850 | 63.seven-98 | four.sixty four-eleven.23 | eight.92-24.two | 11-thirty | 544-630 |
| ESR-150H | 810-1730 | 63.seven-ninety eight | nine.fifty three-twenty five.76 | seventeen.sixteen-sixty five | eighteen.5-seventy five | 752-1571 |
| ESR-200H | 810-1480 | sixty three.7-ninety eight | 25.34-fifty six.ninety two | forty two.34-one hundred twenty | 55-132 | 1426-1934 |
| ESR-250H | 990-1480 | sixty three.7-98 | fifty eight-ninety three.7 | eighty three.two-205 | 90-220 | 2980-3468 |
| ESR300H | 990-1480 | sixty three.seven-ninety eight | 86.nine-134.1 | 114.seven-270 | 132-280 | 3476-3998 |
| ERF-245 | 650-980 | nine.eight-ninety eight | 47.5-97.4 | 16-183 | 18.five-two hundred | 3630-3690 |
| ERF-250 | 650-980 | 9.8-98 | sixty one.6-a hundred and twenty.4 | 19-227 | 22-250 | 4450-4500 |
| ERF-290 | 650-980 | 9.eight-78.4 | 92.three-128 | 22-213 | thirty-250 | 4890-4710 |
| ERF-295 | 650-980 | nine.8-78.4 | ninety seven.three-152.five | 23-227 | thirty-250 | 4890-4880 |
| ERF-297 | 650-980 | nine.eight-seventy eight.four | 87.five-167.six | 26-249 | thirty-280 | 5330-5520 |
| ERF-300 | 650-980 | 9.eight-seventy eight.4 | 101.5-188.seven | 29-278 | 37-315 | 5330-5520 |
| ERF-350 | 650-980 | 9.eight-seventy eight.four | 126-224.9 | 34-249 | 45-280 | 5210-6470 |
| ERG-300 | 590-730 | 9.8-ninety eight | 128.three-196 | 38-362 | 45-four hundred | 9440-15710 |
| ERG-350 | 590-730 | nine.8-ninety eight | 159.3-231.6 | forty three-420 | fifty five-450 | 9700-1571 |
| ERG-400 | 590-730 | 9.8-eighty three.3 | 203.1-290.nine | 52-449 | seventy five-five hundred | 10090-11390 |
| ERG-445 | 590-730 | nine.eight-seventy three.five | 229.seven-327.8 | fifty eight-477 | seventy five-560 | 10600-12230 |
| ERG-450 | 590-730 | nine.eight-73.five | 262.four-366.two | sixty four-496 | 75-560 | 10600-12230 |
| ERG-500 | 590-730 | 9.eight-63.7 | 327.four-452.four | seventy eight-529 | ninety-560 | 12790-14620 |
| ERF-240-V | 650-980 | -nine.eight- -forty nine | 38.one-seventy eight | 13-seventy six | 18.5-ninety | 3420-3285 |
| ERF-245-V | 650-980 | -9.eight- -49 | forty seven.5-ninety seven.four | sixteen-95 | 22-a hundred and ten | 3425-3360 |
| ERF-250-V | 650-980 | -9.8- -forty nine | sixty three-120 | 19-117 | 22-132 | 3910-3830 |
| ERF-290-V | 650-980 | -9.eight- -forty nine | 72.six-144 | 22-136 | thirty-160 | 4415-4270 |
| ERF-295-V | 650-980 | -nine.8- -forty nine | 76.six-152 | 23-145 | 30-160 | 4425-4485 |
| ERF-297-V | 650-980 | -nine.8- -forty nine | eighty four.3-166.eight | 26-one hundred sixty | 30-a hundred and eighty | 5000-4980 |
| ERF-300-V | 650-980 | -9.eight- -forty nine | ninety seven-192 | 29-178 | 37-two hundred | 5000-4980 |
| ERF-350-V | 650-980 | -9.8- -forty nine | 116-225 | 34-209 | 45-250 | 5400-5700 |
| ERG-300V | 590-730 | -nine.eight- -49 | 133-193 | 38-184 | 45-220 | 7800-9100 |
| ERG-350V | 590-730 | -9.eight- -49 | 163-231 | forty three-216 | 55-250 | 9500-9470 |
| ERG-400V | 590-730 | -9.8- -49 | 199-290 | fifty two-269 | 75-315 | 9900-10130 |
| ERG-445V | 590-730 | -9.eight- -forty nine | 224.eight-326.9 | fifty eight-303 | 75-355 | 9900-10130 |
| ERG-450V | 590-730 | -9.8- -forty nine | 255-365 | 64-335 | 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.three- -fifty three.three | fifty three.5-101 | 21.5-102 | thirty-one hundred ten | 3630-3360 |
| ERF-250W | 650-980 | -13.3- -53.3 | sixty nine-127 | 26.5-127 | 30-one hundred sixty | 3985-4115 |
| ERF-290W | 650-980 | -13.3- -fifty three.three | eighty two.six-a hundred and fifty | thirty.five-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 | -13.3- -fifty three.3 | ninety five-174 | 36-174 | forty five-two hundred | 5230-5130 |
| ERF-300W | 650-980 | -13.three- -53.three | 109-195 | 40-193 | fifty five-220 | 5230-5130 |
| ERF-350W | 650-980 | -thirteen.three- -53.3 | 129-230 | 50-230 | seventy five-250 | 5840-5670 |
| ERG-300W | 590-730 | -13.3- -fifty three.3 | 142-197 | fifty two-201 | 75-220 | 9100-9000 |
| ERF-350W | 590-730 | -thirteen.three- -fifty three.three | 168-234.4 | fifty nine-235.five | seventy five-280 | 9500-9600 |
| ERG-400W | 590-730 | -thirteen.three- -53.three | 220-276.6 | seventy one-292 | ninety-315 | 9900-10130 |
| ERG-445W | 590-730 | -thirteen.three- -fifty three.3 | 244-294.6 | 82-331 | 90-four hundred | 11230-11300 |
| ERG450W | 590-730 | -13.three- -53.3 | 275-368.five | ninety one-366 | 110-four hundred | 11230-11300 |
| ETRF-250 (240,250) |
650-980 | 98-196 | 64.8-112 | 135-355 | one hundred sixty-four hundred | 8700-8600 |
| ETRF-295 (245,295) |
650-980 | 98-196 | eighty.eight-139 | 167-439 | 185-five hundred | 9200-9100 |
| ETRF-300 (245,295) |
650-980 | ninety eight-176.four | 102-174 | 206-497 | 250-560 | 10320-10500 |
| ETRF-350 (245,295) |
650-980 | 98-137.2 | 124-207 | 241-473 | 280-560 | 10700-11110 |
| ETRG-four hundred (three hundred,four hundred) |
590-740 | 98-176.four | 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 | -fifty three.three–eighty | 72-121 | seventy five.six-121 | ninety-one hundred sixty | 6100-6470 |
| ETRF-295W (245/295) |
650-980 | -fifty three.3–eighty | ninety three.8-154 | ninety nine.5-186 | a hundred and ten-220 | 7000-6400 |
| ETRF-300W (2505/300) |
650-980 | -53.3–eighty | 116-189 | one hundred fifteen-220 | 132-250 | 7750-7760 |
| EL81WD | 580-980 | 9.8-58.eight | 54.two-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-fifty eight.nine | a hundred and one-213 | 28.5-202 | forty five-220 | 4300 |
| EL84WDA | 580-980 | nine.eight-fifty eight.8 | 129-267 | 35.4-252 | 45-280 | 4720 |
| EL93WDA | 580-730 | nine.eight-forty nine | 230-329 | fifty six.four-311 | 75-355 | 7765 |
| EL94WDA | 580-730 | 9.8-forty nine | 263-373 | 64-353 | seventy five-400 | 8130 |
| EL95WDA | 490-580 | 9.eight-58.eight | 308-434 | eighty one.4-414 | 90-450 | 11500 |
| EL96WDA | 580 | 58.8 | 381 | 497 | 560 | 11500 |
| E397WN | 1000-1650 | forty | 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-130 |
EPT parts and structure of our roots blower:
Deal of our Roots Blower
Pack into iron circumstance, two layer,blower physique and motor in reduce layer, inlet/out silencer and so on in upper layer
Roots blower pack approach same as iron case, just change to Fumigation Free Plywood Case
Our manufacturing facility is a specialist manufacturer of Roots blowers which has in excess of 20 years’ encounter in EPTTry
manufacturing. It is positioned in XiHu (West EPT) Dis.hu (West EPT) Dis. EPT EPTT Park, fifty kilometers to the EPT of ZheJCEP provincial
funds— EPTEPTTn. Our firm also has handy targeted traffic transportation, as it is 15 kilometers absent from
Diaozhen City station of EPTTngdao-HangEPT expressway, and thirty kilometers away from EPT EPTEPTTn station of
BeiEPTTg-ZheJCEP expressway.The major item of our firm is ESR -type Roots Blower. The roots
EPT pump is a new sort of higher-efficiency roots blower, which is deveXiHu (West EPT) Dis.Hu (West EPT) Dis.ed independently dependent on the
domestic and foreign EPTd technologies. Many patEPTTd technologies have been adopted on Roots
Blower, and therefore we have produced significant results in energy conservation and sounds reduction, etc.. So far, our
company has invested far more than thirty,000,000 RMB to introduce such EPTd professional gear as
horizontal machining cEPTTr, vertical machining cEPTTr, two-way CNC area planer, CNC lathe, CNC milling
EPTT, CNC planer, aircraft grinder, cylindrical grinding EPTT, and 3 coordinates screening EPTT.
Aside from, we have taken various measures to stXiHu (West EPT) Dis.Hu (West EPT) Dis.rdize the process flow such as operating and cooperating
with numerous EPT investigation units, schools and universities at house and overseas. We also continually try out to
soak up and improve the domestic EPTd generation technologies, so as to advertise the upgrading and
optimization of the product and make the item high quality get to the EPTd stage at residence and overseas.
ESR -type Roots Blower incEPTTs a number of collection such as Three-leaves Sort, Two-leaves Variety and Centrifugal
Kind,which can be more divided to hundreds of types. The merchandise are broadly used in sewage therapy,
pneumatic conveying,EPT EPTT, aquaculture, meals processing, electrical EPTT, petrochemical, cement,
mining and other EPTT. Our merchandise have this kind of advantages as minimal sounds, power conserving, secure top quality,
and EPTT support lifestyle, and so on.. With the sales outlets during the domestic funds metropolitan areas, our goods offer well all
in excess of the country, and have been exported to North The usa,Russia, Malaysia, Indonesia, Vietnam, South Africa
and some other international locations. Possessing acquired the ISO9001 JCEP EPTT Technique Certification, we have
estabEPTTd and enhanced the good quality assurance of the goods developing, manufacturing, and installation.
From the method of layout, analysis and deveXiHu (West EPT) Dis.Hu (West EPT) Dis.ment to the concluded goods, we have got the EPTT
method controlled independently, therefore providing the total basis and dependability ensure for the items balance
and sturdiness. Obtaining a excellent sales network and after-sales support, we provide our customers with higher-
high quality and more successful support.All personnel of our organization sincerely welcome the wide masses of friends to
XiHu (West EPT) Dis.Hu (West EPT) Dis., and negotiate organization with us.
Our Roots Blower Workshop
Doosn Horzitonal EPTT CEPTTr
The Software of the Roots Blower
Servicing and inspection
(1) Check out all fasteners and locating pins circumstances whether or not they are loosening.
(two) AlwaEPTTcheck no matter whether the leakage phenomenon of the physique.
(three) Pay out attention to lubrication, sum of grease and noises when working,
deterEPT whether or not it works unEPTTthe JCEP situations.
(four) Lubricant amp grease: The lubricant is for medium load EPTT EPT oil
(grade 220, kinematic viscosity of 198 ~ 242mm2 / s 40 ordmC, flash position ge 200 ordmC)
The grease is butter (artificial lithium grease penetration 220-250, drop level ge
190 ordmC). Exchange the lubricant and grease following very first two hundred hours managing, and exchange
once more right after a moth working. Later on, exchange the lubricant and grease according to the
atmosphere and lubricant (grease) high quality propose a appropriate alternative for 3
months.
(five) AlwaEPTTcheck the inlet air filter, clean or change the filter in time.
(6) Blower overload at times not instantly exhibited, so pay out consideration to
the consumption and exhaust force, bearing temperature and the existing boost trends
of motor to deterEPT whether or not the blower functions usually
(seven) Ahead of disassembling the blower, the assembling relation and dimensions
need to be recorded or calculated, make marks on elements to make sure the unique
requirements soon after assembling.
(8) When freshly EPTT or overhaul, the oil tank need to be cleaned just before use
and propose replace all grease right after 8 several hours operating.
Typical failure purpose and troubleshooting
| No | Failure | Possible causes | Elimination techniques |
| 1 | Friction amongst the impeller |
(1) EPTTurities on the impeller, ensuing in the hole is too modest (two) EPT put on, ensuing in a huge backlash (3) The EPT is not well set, can not maintain the impeller synchronization (four) EPTT put on ensuing in clearance increasing. |
(1) Get rid of dirt and examine no matter whether there is damage elements (2) Alter the EPT gap, substitute the EPTs if the EPT backlash is better than the average thirty% to 50% (three)Re-assemble the EPTs, preserve the EPTTr speak to area is to seventy five% (4)Exchange the bearing |
| 2 | Collision among impeller and wall, the impeller leading and casing |
(one) Installation hole is not proper (2) functioning strain is too higher, exceeding the specified worth (3) Operating temperature is as well large (4) Casing or base deformation, positioning supporter failure (5) EPTT aXiHu (West EPT) Dis.al place is not very good |
(1) Modify the hole (2) Identify causes of overloading, diminished the force to the specified value (3) Verify the set up precision and minimize the pipe pressure (4) Check out and restore bearings, and to make certain the clearance (five)Relocation |
| three | Temperature way too higher |
(one) Oil in tank is also considerably, way too thick or as well dirty (two) EPT or silencer is blocked (three)The stress is higher than the specified price (four)Too much dress in of the impeller, big gap (five)Bad ventilation, indoor temperature is substantial, resulting in inlet air’s high temperature (6) The rotating speed is too reduced,consequence in the belt slipping. |
(one)Reduce the oil degree or rely on oil (two)Get rid of of blocking objects (3)Lowering the force by means of the blower (4)Fix its clearance (five)Open up vents to decrease space temperature (six) Boost speed to avoid the belt slipping. |
| 4 | Insufficient movement |
(one) The inlet filter is blocked (two) EPTTeller dress in and the gap will increase too considerably (three) Belt slipping (four) Massive EPTTs strain decline (five) EPTline air flow leakage |
(one) Clear the filter dust and obstruction (2) Repair the gap (3)Tighten the belt and enhance the number of belts (4)Change the inlet stress to the specified benefit (five) Check out and repair the pipeline |
| 5 | Oil leaking or oil leaking into the enclosure |
(one)EPT tank position cause leakage from the discharge port (2) Seal use, resulting in shaft oil spills (three) The stress is greater than the specified benefit |
(one)Reduce the oil level (2)Change the seals (three)Distinct the air vents, 2mm diameter faucet is fixed in the center chamber, open the faucet unEPTTthe wall |
| six | Irregular vibration and noise |
(1)EPTT clearance exceeds the specified worth or bearing use (2) The EPT backlash is too massive, not in a tigEPTT fixed (3) The overseas objects and dust brought on by the impeller and the impeller, the impeller and the housing collision (4) the impeller shaft deformation triggered the collision induced by overload, (five) Friction in between the impeller and the inlet housing caused by overheating (6) Unbalance of the impeller induced by fJCEP or foreign body (seven) Anchor bolts or other fasteners are loosened |
(1)Exchange bearings or bearing seat (two)Reassemble EPT and ensure backlash (3)Cleaning blower, check the situation is damaged (4)Check out the again pressure, check out the wheel and modify hole (five)Examine the filter and back again stress, increase the gap amongst the impeller inlet and the casing (6)Cleanse the impeller and the casing, to make sure that the impeller clearance perform (7) Tighten the anchor bolts and leveling the foundation. |
| seven | EPT overload |
(one)In comparison with the JCEP pressure, the strain big difference is big that the again force or the inlet stress is large (2) Compared with the products specifications, blower circulation is too huge, so its pressure raises (3)Inlet filter is blocked, or outlet pipe is obstructed or blocked (4) Collusion or friction (caught) rotating parts (five) The oil level is as well substantial (six) NEPT V-belt is overheat, vibration is as well large, or pulley is also modest |
(one) Reduce the pressure to the specified price (2) Exhaust the surplus gas into the atmosphere or minimize the blower speed (three) Get rid of the obstructions (4)Right away shut down, check out the reason (5) Alter the oil to the appropriate stage (6) Verify the belt stress, and changed it with large diameter pulley. |
Our Services
1. Pre sell service 2. Following market services
a. advocate the suited design c. on the internet technical help,
b. manufacturing unit tour d. EPTT existence spare parts and techinical assist
Gurantee
12 months gurantee for our roots blowers
