We – EPG Team the greatest couplings and gears manufacturing facility in China with 5 various branches. For more details: Mobile/whatsapp/telegram/Kakao us at: 0086-13083988828 /
We make all varieties of roots blower, centrifugal blower, Our Main merchandise are as underneath:
| Sort | Diameter | Fee of stream | Strain |
| ESR-MJ(Intense Variety) | Φ50~Φ300mm | .5~140m³/min | 9.8KPa~ninety eight.8Kpa |
| ESR(Common Variety) | Φ50~Φ350mm | .five~140m³/min | nine.8KPa~seventy eight.4Kpa |
| ESR-H(Large-pressure Variety) | Φ50~Φ350mm | .7~160m³/min | fifty eight.8KPa~98.8Kpa |
| ESR-V(Vacuum Pump) | Φ50~Φ350mm | .5~160m³/min | 9.8KPa~53.3Kpa |
| EL Collection | Φ200~Φ600mm | twenty.three~750m³/min | nine.8KPa~58.8Kpa |
| Multistage Centrifugal Blower or C-Sequence |
Φ250~Φ500mm | 50~500m³/min | 9.8KPa~98Kpa |
| ERR-ERG Kind | Φ250~Φ500mm | one hundred twenty~420m³/min | nine.8KPa~98.8Kpa |
The working principle of the 3-blade roots blower: two 3-lobed rotors are arranged in the cavity, and the
suction port and the discharge port are opened on the two sides of the cavity. Through the motion 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 achieve the
goal of blowing.
Function of our roots blower:
one. Huge adjustment of the air volume
2. Low Noise
three. Large performance
four. Low vitality cosumption
5. Lengthy time lifestyle
6. Trustworthy working, easy servicing,tiny footprint
The parameters of our roots blower:
| Type | Ratary Speed (r/min) |
Pressure Rise (Kpa) |
Ability (m/min) |
Shaft Electricity (Kw) |
Motor | Device Maximn Bodyweight(Kg) |
| Energy (Kw) |
||||||
| ESR-50 | 1100-2120 | 9.eight-58.eight | .65-two.fifty eight | .three-3.54 | .75-four | 128-158 |
| ESR-65 | 1100-2130 | 9.eight-fifty eight.8 | .ninety four-three.66 | .38-4.46 | .seventy five-5.5 | one hundred fifty five-185 |
| ESR-80 | 1140-1900 | 9.eight-58.8 | two.34-five.43 | 1.04-7.42 | two.two-eleven | a hundred and fifty five-277 |
| ESR-one hundred | 1060-1980 | nine.eight-58.8 | four.fifty seven-9.05 | one.35-twelve.15 | three-15 | 309-377 |
| ESR-a hundred twenty five | 980-1850 | 9.eight-58.8 | 5.35-twelve.4 | one.65-five.19 | five.5-eighteen.five | 408-451 |
| ESR-125C | 970-1830 | nine.eight-fifty eight.8 | 7.five-17.fifty seven | 3.2-eighteen.five | 4-22 | 408-451 |
| ESR-a hundred and fifty | 810-1730 | 9.eight-fifty eight.eight | ten.37-27.15 | three.84-40.eighty two | 7.five-forty five | 688-848 |
| ESR-175 | 970-1520 | 9.8-58.eight | 19.sixty five-36.65 | 7.two-45.ninety five | 11-fifty five | 980-1080 |
| ESR-200B | 740-1450 | 9.8-58.8 | 19.65-44.eight | ten.fifteen-sixty.44 | fifteen-seventy five | 1272-1546 |
| ESR-two hundred | 810-1480 | nine.8-fifty eight.eight | 27.65-fifty nine.2 | eight.05-eighty,twelve | fifteen-90 | 1272-1546 |
| ESR-250B | 1100-1480 | nine.eight-fifty eight.8 | 54.seventy seven-seventy seven.fifty five | 19.ninety seven-ninety.ninety seven | thirty-a hundred and ten | 1490-2454 |
| ESR-250 | 990-1480 | nine.eight-fifty eight.eight | sixty one.4-97.52 | 20.one-117.3 | 30-132 | 1490-2454 |
| ESR-three hundred | 990-1480 | 9.eight-fifty eight.8 | 87.1-138.one | 26.four-167.eight | 37-185 | 3326-3446 |
| ESR-350 | 730-1480 | 9.8-58.eight | 78.41-177.31 | 55-250 | ||
| ESR-50H | 1230-2120 | 63.seven-98 | .forty five-two.02 | 2.05-six.12 | 3-7.five | a hundred and sixty–one hundred seventy |
| ESR-65H | 1240-2130 | sixty three.seven-98 | .seventy eight-two.53 | two.89-seven.fifty five | four-11 | 198-230 |
| ESR-80H | 1140-1900 | 63.7-98 | one.eighty two-4.fifty five | 4.09-ten.one | five.five-15 | 316-326 |
| ESR-100H | 1060-1980 | 63.7-98 | 2.65-8.06 | six.36-seventeen.two | seven.5-22 | 398-459 |
| ESR-125H | 980-1850 | 63.7-ninety eight | four.64-11.23 | 8.92-24.2 | eleven-30 | 544-630 |
| ESR-150H | 810-1730 | 63.7-98 | 9.53-twenty five.seventy six | 17.sixteen-sixty five | 18.5-seventy five | 752-1571 |
| ESR-200H | 810-1480 | 63.7-ninety eight | 25.34-56.ninety two | 42.34-one hundred twenty | fifty five-132 | 1426-1934 |
| ESR-250H | 990-1480 | sixty three.seven-ninety eight | 58-93.seven | 83.2-205 | ninety-220 | 2980-3468 |
| ESR300H | 990-1480 | sixty three.7-ninety eight | 86.nine-134.one | 114.7-270 | 132-280 | 3476-3998 |
| ERF-245 | 650-980 | 9.8-98 | forty seven.5-ninety seven.four | sixteen-183 | 18.5-two hundred | 3630-3690 |
| ERF-250 | 650-980 | nine.8-98 | sixty one.6-one hundred twenty.four | 19-227 | 22-250 | 4450-4500 |
| ERF-290 | 650-980 | 9.eight-78.4 | 92.3-128 | 22-213 | thirty-250 | 4890-4710 |
| ERF-295 | 650-980 | nine.8-seventy eight.4 | ninety seven.three-152.five | 23-227 | 30-250 | 4890-4880 |
| ERF-297 | 650-980 | 9.8-seventy eight.4 | 87.5-167.6 | 26-249 | 30-280 | 5330-5520 |
| ERF-three hundred | 650-980 | nine.8-seventy eight.4 | 101.five-188.7 | 29-278 | 37-315 | 5330-5520 |
| ERF-350 | 650-980 | 9.eight-78.4 | 126-224.9 | 34-249 | forty five-280 | 5210-6470 |
| ERG-three hundred | 590-730 | 9.8-98 | 128.3-196 | 38-362 | forty five-400 | 9440-15710 |
| ERG-350 | 590-730 | nine.8-ninety eight | 159.3-231.six | 43-420 | fifty five-450 | 9700-1571 |
| ERG-400 | 590-730 | 9.8-eighty three.three | 203.1-290.nine | 52-449 | 75-500 | 10090-11390 |
| ERG-445 | 590-730 | 9.8-73.5 | 229.seven-327.eight | 58-477 | 75-560 | 10600-12230 |
| ERG-450 | 590-730 | nine.8-seventy three.5 | 262.four-366.2 | sixty four-496 | 75-560 | 10600-12230 |
| ERG-500 | 590-730 | nine.8-sixty three.7 | 327.four-452.4 | 78-529 | ninety-560 | 12790-14620 |
| ERF-240-V | 650-980 | -9.eight- -forty nine | 38.1-78 | 13-seventy six | eighteen.five-90 | 3420-3285 |
| ERF-245-V | 650-980 | -9.8- -forty nine | forty seven.5-ninety seven.four | 16-95 | 22-110 | 3425-3360 |
| ERF-250-V | 650-980 | -nine.8- -49 | 63-120 | 19-117 | 22-132 | 3910-3830 |
| ERF-290-V | 650-980 | -nine.eight- -49 | 72.6-a hundred and forty four | 22-136 | thirty-one hundred sixty | 4415-4270 |
| ERF-295-V | 650-980 | -nine.eight- -49 | 76.6-152 | 23-a hundred forty five | 30-a hundred and sixty | 4425-4485 |
| ERF-297-V | 650-980 | -9.8- -forty nine | 84.three-166.8 | 26-a hundred and sixty | thirty-a hundred and eighty | 5000-4980 |
| ERF-300-V | 650-980 | -9.8- -forty nine | ninety seven-192 | 29-178 | 37-200 | 5000-4980 |
| ERF-350-V | 650-980 | -9.eight- -forty nine | 116-225 | 34-209 | forty five-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 | 55-250 | 9500-9470 |
| ERG-400V | 590-730 | -nine.8- -49 | 199-290 | 52-269 | 75-315 | 9900-10130 |
| ERG-445V | 590-730 | -nine.eight- -forty nine | 224.8-326.9 | 58-303 | 75-355 | 9900-10130 |
| ERG-450V | 590-730 | -nine.8- -49 | 255-365 | sixty four-335 | seventy five-400 | 11230-11300 |
| ERG-500V | 590-730 | -nine.8- -forty nine | 314-452 | seventy eight-412 | 132-450 | 13630-13850 |
| ERF-245W | 650-980 | -13.3- -53.three | 53.5-one zero one | 21.5-102 | 30-a hundred and ten | 3630-3360 |
| ERF-250W | 650-980 | -13.three- -fifty three.three | 69-127 | 26.five-127 | 30-one hundred sixty | 3985-4115 |
| ERF-290W | 650-980 | -thirteen.3- -fifty three.3 | 82.six-150 | 30.five-149 | 37-185 | 4340-4580 |
| ERF-295W | 650-980 | -13.3- -53.three | 87-158 | 32-158 | 37-185 | 4440-4580 |
| ERF-297W | 650-980 | -13.three- -53.3 | ninety five-174 | 36-174 | forty five-200 | 5230-5130 |
| ERF-300W | 650-980 | -13.three- -53.three | 109-195 | forty-193 | 55-220 | 5230-5130 |
| ERF-350W | 650-980 | -13.3- -fifty three.three | 129-230 | fifty-230 | 75-250 | 5840-5670 |
| ERG-300W | 590-730 | -thirteen.three- -53.three | 142-197 | fifty two-201 | 75-220 | 9100-9000 |
| ERF-350W | 590-730 | -thirteen.three- -fifty three.three | 168-234.4 | 59-235.five | seventy five-280 | 9500-9600 |
| ERG-400W | 590-730 | -thirteen.three- -53.3 | 220-276.six | seventy one-292 | ninety-315 | 9900-10130 |
| ERG-445W | 590-730 | -13.three- -53.three | 244-294.six | 82-331 | 90-400 | 11230-11300 |
| ERG450W | 590-730 | -13.3- -53.three | 275-368.5 | ninety one-366 | one hundred ten-400 | 11230-11300 |
| ETRF-250 (240,250) |
650-980 | ninety eight-196 | sixty four.8-112 | 135-355 | 160-four hundred | 8700-8600 |
| ETRF-295 (245,295) |
650-980 | ninety eight-196 | 80.eight-139 | 167-439 | 185-500 | 9200-9100 |
| ETRF-300 (245,295) |
650-980 | 98-176.four | 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-400 (300,400) |
590-740 | ninety eight-176.4 | 205-273 | 380-773 | 450-900 | 21350-24200 |
| ETRG-450 (350,450) |
590-740 | 98-176.four | 263-428 | 476-955 | 560-a thousand | 24200-27600 |
| ETRF-250W (240,250) |
650-980 | -53.three–80 | seventy two-121 | 75.6-121 | 90-one hundred sixty | 6100-6470 |
| ETRF-295W (245/295) |
650-980 | -53.3–eighty | ninety three.eight-154 | ninety nine.five-186 | 110-220 | 7000-6400 |
| ETRF-300W (2505/300) |
650-980 | -53.3–80 | 116-189 | 115-220 | 132-250 | 7750-7760 |
| EL81WD | 580-980 | 9.eight-58.eight | 54.2-a hundred thirty | eighteen-151 | 45-185 | 3595 |
| EL82WDB | 580-980 | nine.eight-58.eight | 72.eight-161 | 22-191 | 45-220 | 3860 |
| EL83WDA | 580-980 | 9.8-fifty eight.9 | one zero one-213 | 28.five-202 | forty five-220 | 4300 |
| EL84WDA | 580-980 | 9.eight-fifty eight.8 | 129-267 | 35.4-252 | forty five-280 | 4720 |
| EL93WDA | 580-730 | 9.eight-forty nine | 230-329 | fifty six.4-311 | 75-355 | 7765 |
| EL94WDA | 580-730 | 9.8-49 | 263-373 | sixty four-353 | seventy five-four hundred | 8130 |
| EL95WDA | 490-580 | 9.8-58.eight | 308-434 | 81.4-414 | ninety-450 | 11500 |
| EL96WDA | 580 | fifty eight.8 | 381 | 497 | 560 | 11500 |
| E397WN | a thousand-1650 | 40 | 5-nine | |||
| E408WN | 870-1650 | forty | ten-22 | |||
| E517WN | 980-1580 | 40 | 20-30 | |||
| E520WN | 930-1550 | 40 | 24-forty five | |||
| E607WN | 750-1250 | forty | forty five-seventy six | |||
| E610WN | 750-1250 | forty | 75-a hundred thirty |
Spare parts and composition of our roots blower:
Deal of our Roots Blower
Pack into iron situation, two layer,blower body and motor in reduced layer, inlet/out silencer and so forth in higher layer
Roots blower pack strategy very same as iron situation, just alter to Fumigation Cost-free Plywood Case
Our manufacturing unit is a skilled company of Roots blowers which has more than twenty years’ experience in equipment
producing. It is located in Xihu (West Lake) Dis. East Industrial Park, fifty kilometers to the east of Shan EPT provincial
capital— HangZhou. Our firm also has practical site visitors transportation, as it is fifteen kilometers away from
Diaozhen Town station of HangZhou-HangZhou expressway, and thirty kilometers away from East HangZhou station of
ZheJiang -ZheJiang expressway.The leading item of our business is ESR -variety Roots Blower. The roots
vacuum pump is a new sort of higher-efficiency roots blower, which is developed independently primarily based on the
domestic and international superior technologies. Many patented technologies have been adopted on Roots
Blower, and thus we have created substantial outcomes in power conservation and noise reduction, and many others.. So much, our
firm has invested more than thirty,000,000 RMB to introduce this sort of innovative expert gear as
horizontal machining heart, vertical machining heart, two-way CNC surface area planer, CNC lathe, CNC milling
device, CNC planer, aircraft grinder, cylindrical grinding machine, and three coordinates screening machine.
Aside from, we have taken numerous steps to standardize the procedure stream this kind of as functioning and cooperating
with several scientific research units, schools and universities at property and abroad. We also continuously try to
take up and enhance the domestic advanced manufacturing technologies, so as to promote the upgrading and
optimization of the merchandise and make the item quality get to the advanced level at home and abroad.
ESR -kind Roots Blower involves several sequence these kinds of as A few-leaves Variety, Two-leaves Type and Centrifugal
Sort,which can be more divided to hundreds of kinds. The items are commonly employed in sewage therapy,
pneumatic conveying,vacuum packaging, aquaculture, meals processing, EPT power, petrochemical, cement,
mining and other industries. Our goods have this kind of advantages as reduced noise, vitality conserving, secure top quality,
and long services daily life, and so on.. With the revenue outlets throughout the domestic funds cities, our goods promote effectively all
in excess of the nation, and have been exported to North The usa,Russia, Malaysia, Indonesia, Vietnam, South Africa
and some other international locations. Obtaining acquired the ISO9001 International Quality Program Certification, we have
set up and improved the quality assurance of the items designing, producing, and installation.
From the procedure of style, research and improvement to the concluded goods, we have received the total
procedure controlled independently, as a result offering the entire foundation and dependability guarantee for the goods security
and sturdiness. Possessing a perfect product sales network and soon after-income provider, we offer our customers with increased-
top quality and much more effective services.All employees of our business sincerely welcome the broad masses of close friends to
guidebook, and negotiate business with us.
Our Roots Blower Workshop
Doosn Horzitonal Device Middle
The Application of the Roots Blower
Maintenance and inspection
(one) Check all fasteners and finding pins situations whether they are loosening.
(2) Always examine regardless of whether the leakage phenomenon of the entire body.
(3) Spend attention to lubrication, volume of grease and noises when managing,
decide whether or not it works beneath the required situations.
(four) Lubricant & 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 (synthetic lithium grease penetration 220-250, fall position ≥
190ºC). Replace the lubricant and grease soon after first 200 hrs running, and replace
yet again following a moth managing. Afterwards, exchange the lubricant and grease according to the
setting and lubricant (grease) quality propose a suitable EPT for a few
months.
(five) Often verify the inlet air filter, clean or replace the filter in time.
(6) Blower overload occasionally not immediately displayed, so spend attention to
the ingestion and exhaust force, bearing temperature and the recent boost traits
of motor to establish no matter whether the blower operates typically
(7) Prior to disassembling the blower, the assembling relation and proportions
should be recorded or measured, make marks on elements to make sure the original
demands after assembling.
(eight) When freshly equipment or overhaul, the oil tank should be cleaned just before use
and propose change all grease after 8 hours managing.
Common failure purpose and troubleshooting
| No | Failure | Achievable motives | Elimination methods |
| one | Friction in between the impeller |
(one) Impurities on the impeller, resulting in the hole is too tiny (two) Equipment use, resulting in a large backlash (three) The gear is not well set, can not preserve the impeller synchronization (4) Bearing put on resulting in clearance escalating. |
(1) Take away dust and examine no matter whether there is injury parts (two) Adjust the equipment gap, change the gears if the gear backlash is better than the typical 30% to fifty% (3)Re-assemble the gears, hold the taper get in touch with region is to seventy five% (four)Substitute the bearing |
| two | Collision among impeller and wall, the impeller prime and casing |
(1) Installation hole is not correct (2) operating pressure is as well large, exceeding the specified value (3) Running temperature is also higher (4) Casing or base deformation, positioning admirer failure (five) Bearing axial spot is not very good |
(one) Modify the gap (2) Identify leads to of overloading, decreased the strain to the specified price (3) Examine the installation accuracy and lessen the pipe stress (4) Check and fix bearings, and to ensure the clearance (5)Relocation |
| 3 | Temperature way too high |
(one) Oil in tank is also considerably, also thick or way too dirty (two) Filter or silencer is blocked (3)The pressure is increased than the specified value (four)Too much use of the impeller, huge hole (5)Poor ventilation, indoor temperature is substantial, resulting in inlet air’s high temperature (six) The rotating speed is too low,outcome in the belt slipping. |
(one)Reduce the oil degree or rely on oil (2)Take away of blocking objects (3)Reducing the strain through the blower (four)Mend its clearance (five)Open up vents to decrease room temperature (6) Boost velocity to stop the belt slipping. |
| 4 | Insufficient flow |
(1) The inlet filter is blocked (two) Impeller use and the gap will increase too much (three) Belt slipping (4) Massive imports pressure reduction (five) Pipeline air flow leakage |
(1) Clear the filter dust and obstruction (two) Fix the gap (3)Tighten the belt and improve the number of belts (four)Adjust the inlet strain to the specified value (five) Check out and restore the pipeline |
| five | Oil leaking or oil leaking into the enclosure |
(one)Higher tank situation lead to leakage from the discharge port (two) Seal dress in, ensuing in shaft oil spills (three) The strain is greater than the specified value |
(1)Lessen the oil degree (two)Exchange the seals (3)Clear the air vents, 2mm diameter faucet is fixed in the center chamber, open the faucet underneath the wall |
| six | Irregular vibration and sound |
(one)Bearing clearance exceeds the specified benefit or bearing use (two) The gear backlash is also big, not in a restricted fastened (three) The foreign objects and dust brought on by the impeller and the impeller, the impeller and the housing collision (four) the impeller shaft deformation caused the collision triggered by overload, (5) Friction in between the impeller and the inlet housing brought on by overheating (6) Unbalance of the impeller caused by fouling or foreign entire body (seven) Anchor bolts or other fasteners are loosened |
(1)Replace bearings or bearing seat (two)Reassemble gear and make certain backlash (3)Cleaning blower, check the circumstance is damaged (4)Examine the again strain, check the wheel and alter gap (5)Check out the filter and back again pressure, improve the hole among the impeller inlet and the casing (6)Cleanse the impeller and the casing, to make sure that the impeller clearance work (seven) Tighten the anchor bolts and leveling the base. |
| 7 | Motor overload |
(one)In contrast with the needed strain, the force difference is massive that the back pressure or the inlet stress is large (two) Compared with the tools specifications, blower stream is too huge, so its pressure boosts (3)Inlet filter is blocked, or outlet pipe is obstructed or blocked (four) Collusion or friction (stuck) rotating components (5) The oil stage is too higher (six) Slim V-belt is overheat, vibration is way too large, or pulley is way too small |
(1) Decrease the pressure to the specified benefit (two) Exhaust the extra gas into the ambiance or minimize the blower speed (three) Take away the obstructions (four)Quickly shut down, check out the reason (five) Alter the oil to the right degree (six) Check the belt tension, and replaced it with huge diameter pulley. |
Our Support
one. Pre promote service 2. Soon after offer service
a. advocate the suitable model c. on the web complex assistance,
b. manufacturing facility tour d. whole life spare components and techinical help
Gurantee
twelve months gurantee for our roots blowers
/ The use of original gear manufacturer’s (OEM) element numbers or logos , e.g. CASE® and John Deere® are for reference functions only and for indicating item use and compatibility. Our business and the listed EPT areas contained herein are not sponsored, approved, or produced by the OEM. /
