We – EPG Team the biggest couplings and gears manufacturing facility in China with five various branches. For far more details: Cellular/whatsapp/telegram/Kakao us at: 0086-13083988828 /
We make all sorts of roots blower, centrifugal blower, Our Principal merchandise are as underneath:
Sort | Diameter | Fee of circulation | Stress |
ESR-MJ(Intense Sort) | Φ50~Φ300mm | .five~140m³/min | 9.8KPa~ninety eight.8Kpa |
ESR(Ordinary Kind) | Φ50~Φ350mm | .5~140m³/min | 9.8KPa~seventy eight.4Kpa |
ESR-H(High-strain Kind) | Φ50~Φ350mm | .7~160m³/min | fifty eight.8KPa~ninety eight.8Kpa |
ESR-V(Vacuum Pump) | Φ50~Φ350mm | .five~160m³/min | nine.8KPa~fifty three.3Kpa |
EL Sequence | Φ200~Φ600mm | twenty.3~750m³/min | 9.8KPa~58.8Kpa |
Multistage Centrifugal Blower or C-Series |
Φ250~Φ500mm | 50~500m³/min | 9.8KPa~98Kpa |
ERR-ERG Kind | Φ250~Φ500mm | a hundred and twenty~420m³/min | nine.8KPa~98.8Kpa |
The working basic principle of the 3-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. By means of the motion 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 fuel in the chamber is pushed to obtain the
goal of blowing.
Attribute of our roots blower:
1. Big adjustment of the air volume
2. Reduced Noise
three. Substantial performance
four. Minimal vitality cosumption
five. Prolonged time life
6. Dependable managing, straightforward maintenance,small footprint
The parameters of our roots blower:
Type | Ratary Speed (r/min) |
Stress Rise (Kpa) |
Capability (m/min) |
Shaft Power (Kw) |
Motor | Device Maximn Fat(Kg) |
Electricity (Kw) |
||||||
ESR-fifty | 1100-2120 | nine.eight-fifty eight.eight | .sixty five-two.58 | .3-3.54 | .75-four | 128-158 |
ESR-sixty five | 1100-2130 | nine.eight-fifty eight.8 | .94-three.sixty six | .38-four.forty six | .75-five.five | one hundred fifty five-185 |
ESR-eighty | 1140-1900 | 9.eight-fifty eight.eight | 2.34-5.43 | 1.04-seven.forty two | two.two-11 | a hundred and fifty five-277 |
ESR-100 | 1060-1980 | 9.eight-58.8 | 4.57-nine.05 | 1.35-12.fifteen | three-fifteen | 309-377 |
ESR-one hundred twenty five | 980-1850 | nine.8-fifty eight.8 | 5.35-twelve.four | one.65-five.19 | five.five-eighteen.5 | 408-451 |
ESR-125C | 970-1830 | nine.eight-fifty eight.8 | seven.5-seventeen.fifty seven | three.2-18.five | 4-22 | 408-451 |
ESR-one hundred fifty | 810-1730 | nine.eight-58.eight | ten.37-27.fifteen | 3.eighty four-forty.82 | 7.5-45 | 688-848 |
ESR-175 | 970-1520 | 9.8-58.8 | 19.65-36.sixty five | 7.2-forty five.ninety five | eleven-fifty five | 980-1080 |
ESR-200B | 740-1450 | 9.eight-58.8 | 19.65-forty four.eight | ten.15-60.forty four | 15-seventy five | 1272-1546 |
ESR-200 | 810-1480 | 9.eight-58.8 | 27.sixty five-59.two | eight.05-eighty,12 | 15-ninety | 1272-1546 |
ESR-250B | 1100-1480 | 9.eight-fifty eight.8 | fifty four.77-seventy seven.55 | 19.97-ninety.97 | 30-a hundred and ten | 1490-2454 |
ESR-250 | 990-1480 | nine.eight-fifty eight.8 | sixty one.4-97.52 | twenty.one-117.3 | thirty-132 | 1490-2454 |
ESR-300 | 990-1480 | nine.8-fifty eight.eight | 87.1-138.1 | 26.4-167.8 | 37-185 | 3326-3446 |
ESR-350 | 730-1480 | nine.eight-58.eight | seventy eight.forty one-177.31 | 55-250 | ||
ESR-50H | 1230-2120 | sixty three.seven-98 | .45-two.02 | two.05-6.twelve | 3-7.5 | 160–a hundred and seventy |
ESR-65H | 1240-2130 | 63.7-98 | .78-2.53 | 2.89-seven.55 | 4-eleven | 198-230 |
ESR-80H | 1140-1900 | 63.7-98 | 1.82-4.55 | 4.09-10.one | 5.5-fifteen | 316-326 |
ESR-100H | 1060-1980 | sixty three.7-98 | 2.sixty five-8.06 | 6.36-seventeen.2 | 7.5-22 | 398-459 |
ESR-125H | 980-1850 | 63.7-98 | 4.sixty four-eleven.23 | eight.92-24.two | 11-30 | 544-630 |
ESR-150H | 810-1730 | sixty three.7-ninety eight | nine.53-twenty five.76 | seventeen.sixteen-65 | eighteen.five-75 | 752-1571 |
ESR-200H | 810-1480 | sixty three.seven-98 | twenty five.34-fifty six.92 | 42.34-120 | 55-132 | 1426-1934 |
ESR-250H | 990-1480 | 63.seven-ninety eight | 58-93.seven | 83.2-205 | ninety-220 | 2980-3468 |
ESR300H | 990-1480 | 63.seven-98 | 86.9-134.1 | 114.seven-270 | 132-280 | 3476-3998 |
ERF-245 | 650-980 | 9.eight-ninety eight | forty seven.5-97.four | 16-183 | eighteen.5-two hundred | 3630-3690 |
ERF-250 | 650-980 | 9.8-98 | 61.6-one hundred twenty.4 | 19-227 | 22-250 | 4450-4500 |
ERF-290 | 650-980 | 9.8-78.4 | 92.3-128 | 22-213 | thirty-250 | 4890-4710 |
ERF-295 | 650-980 | nine.eight-78.4 | 97.3-152.five | 23-227 | thirty-250 | 4890-4880 |
ERF-297 | 650-980 | 9.8-seventy eight.4 | 87.five-167.six | 26-249 | thirty-280 | 5330-5520 |
ERF-three hundred | 650-980 | nine.8-seventy eight.4 | a hundred and one.5-188.7 | 29-278 | 37-315 | 5330-5520 |
ERF-350 | 650-980 | nine.eight-seventy eight.four | 126-224.nine | 34-249 | forty five-280 | 5210-6470 |
ERG-300 | 590-730 | nine.8-98 | 128.three-196 | 38-362 | forty five-400 | 9440-15710 |
ERG-350 | 590-730 | 9.eight-98 | 159.three-231.six | 43-420 | 55-450 | 9700-1571 |
ERG-400 | 590-730 | 9.8-eighty three.three | 203.1-290.nine | fifty two-449 | seventy five-500 | 10090-11390 |
ERG-445 | 590-730 | nine.eight-seventy three.5 | 229.7-327.eight | fifty eight-477 | 75-560 | 10600-12230 |
ERG-450 | 590-730 | nine.eight-seventy three.5 | 262.4-366.two | sixty four-496 | 75-560 | 10600-12230 |
ERG-five hundred | 590-730 | 9.eight-63.seven | 327.4-452.four | seventy eight-529 | 90-560 | 12790-14620 |
ERF-240-V | 650-980 | -9.eight- -49 | 38.one-seventy eight | thirteen-seventy six | eighteen.5-90 | 3420-3285 |
ERF-245-V | 650-980 | -9.eight- -forty nine | 47.5-ninety seven.four | sixteen-95 | 22-110 | 3425-3360 |
ERF-250-V | 650-980 | -nine.eight- -forty nine | 63-120 | 19-117 | 22-132 | 3910-3830 |
ERF-290-V | 650-980 | -nine.8- -forty nine | 72.6-one hundred forty four | 22-136 | thirty-a hundred and sixty | 4415-4270 |
ERF-295-V | 650-980 | -nine.8- -49 | seventy six.6-152 | 23-one hundred forty five | thirty-160 | 4425-4485 |
ERF-297-V | 650-980 | -9.8- -49 | 84.3-166.eight | 26-a hundred and sixty | 30-180 | 5000-4980 |
ERF-300-V | 650-980 | -nine.8- -49 | ninety seven-192 | 29-178 | 37-two hundred | 5000-4980 |
ERF-350-V | 650-980 | -9.8- -49 | 116-225 | 34-209 | forty five-250 | 5400-5700 |
ERG-300V | 590-730 | -nine.eight- -49 | 133-193 | 38-184 | forty five-220 | 7800-9100 |
ERG-350V | 590-730 | -9.eight- -forty nine | 163-231 | 43-216 | fifty five-250 | 9500-9470 |
ERG-400V | 590-730 | -9.8- -forty nine | 199-290 | fifty two-269 | seventy five-315 | 9900-10130 |
ERG-445V | 590-730 | -nine.8- -forty nine | 224.eight-326.9 | 58-303 | seventy five-355 | 9900-10130 |
ERG-450V | 590-730 | -9.8- -49 | 255-365 | sixty four-335 | seventy five-four hundred | 11230-11300 |
ERG-500V | 590-730 | -nine.8- -forty nine | 314-452 | seventy eight-412 | 132-450 | 13630-13850 |
ERF-245W | 650-980 | -13.three- -fifty three.3 | 53.5-one zero one | 21.5-102 | 30-a hundred and ten | 3630-3360 |
ERF-250W | 650-980 | -thirteen.3- -53.three | sixty nine-127 | 26.5-127 | 30-160 | 3985-4115 |
ERF-290W | 650-980 | -13.3- -53.3 | 82.6-150 | 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 | -thirteen.three- -53.3 | 109-195 | 40-193 | fifty five-220 | 5230-5130 |
ERF-350W | 650-980 | -13.3- -fifty three.three | 129-230 | 50-230 | 75-250 | 5840-5670 |
ERG-300W | 590-730 | -thirteen.3- -53.3 | 142-197 | 52-201 | seventy five-220 | 9100-9000 |
ERF-350W | 590-730 | -thirteen.three- -53.3 | 168-234.four | 59-235.five | 75-280 | 9500-9600 |
ERG-400W | 590-730 | -13.three- -fifty three.three | 220-276.6 | seventy one-292 | 90-315 | 9900-10130 |
ERG-445W | 590-730 | -13.3- -fifty three.3 | 244-294.six | eighty two-331 | 90-four hundred | 11230-11300 |
ERG450W | 590-730 | -13.3- -53.three | 275-368.five | ninety one-366 | a hundred and ten-four hundred | 11230-11300 |
ETRF-250 (240,250) |
650-980 | 98-196 | 64.eight-112 | 135-355 | a hundred and sixty-four hundred | 8700-8600 |
ETRF-295 (245,295) |
650-980 | 98-196 | 80.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 | ninety eight-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 | 98-176.four | 263-428 | 476-955 | 560-one thousand | 24200-27600 |
ETRF-250W (240,250) |
650-980 | -53.three–eighty | 72-121 | seventy five.6-121 | 90-a hundred and sixty | 6100-6470 |
ETRF-295W (245/295) |
650-980 | -fifty three.3–80 | ninety three.8-154 | ninety nine.5-186 | one hundred ten-220 | 7000-6400 |
ETRF-300W (2505/300) |
650-980 | -fifty three.three–80 | 116-189 | 115-220 | 132-250 | 7750-7760 |
EL81WD | 580-980 | 9.eight-fifty eight.8 | fifty four.2-130 | 18-151 | forty five-185 | 3595 |
EL82WDB | 580-980 | 9.eight-58.eight | seventy two.8-161 | 22-191 | 45-220 | 3860 |
EL83WDA | 580-980 | 9.eight-fifty eight.nine | a hundred and one-213 | 28.5-202 | forty five-220 | 4300 |
EL84WDA | 580-980 | 9.8-58.eight | 129-267 | 35.four-252 | 45-280 | 4720 |
EL93WDA | 580-730 | nine.eight-forty nine | 230-329 | 56.4-311 | seventy five-355 | 7765 |
EL94WDA | 580-730 | nine.eight-forty nine | 263-373 | sixty four-353 | 75-400 | 8130 |
EL95WDA | 490-580 | 9.eight-fifty eight.eight | 308-434 | 81.4-414 | ninety-450 | 11500 |
EL96WDA | 580 | 58.8 | 381 | 497 | 560 | 11500 |
E397WN | a thousand-1650 | forty | 5-9 | |||
E408WN | 870-1650 | 40 | 10-22 | |||
E517WN | 980-1580 | forty | 20-30 | |||
E520WN | 930-1550 | forty | 24-45 | |||
E607WN | 750-1250 | 40 | forty five-76 | |||
E610WN | 750-1250 | 40 | seventy five-one hundred thirty |
Spare parts and construction of our roots blower:
Package deal of our Roots Blower
Pack into iron circumstance, two layer,blower body and motor in reduced layer, inlet/out silencer and so on in higher layer
Roots blower pack approach same as iron situation, just modify to Fumigation Totally free Plywood Situation
Our factory is a specialist manufacturer of Roots blowers which has above twenty years' experience in machinery
producing. It is positioned in Xihu (West Lake) Dis. East Industrial Park, fifty kilometers to the east of Shan EPT provincial
funds— HangZhou. Our company also has practical targeted traffic transportation, as it is 15 kilometers away from
Diaozhen Town station of HangZhou-HangZhou expressway, and 30 kilometers away from East HangZhou station of
ZheJiang -ZheJiang expressway.The major item of our organization is ESR -sort Roots Blower. The roots
vacuum pump is a new kind of large-performance roots blower, which is designed independently based mostly on the
domestic and foreign superior systems. Several patented technologies have been adopted on Roots
Blower, and thus we have manufactured significant outcomes in energy conservation and noise reduction, and so on.. So far, our
organization has invested far more than thirty,000,000 RMB to introduce such superior skilled tools as
horizontal machining middle, vertical machining middle, two-way CNC floor planer, CNC lathe, CNC milling
machine, CNC planer, airplane grinder, cylindrical grinding equipment, and three coordinates tests equipment.
Apart from, we have taken numerous steps to standardize the process movement this kind of as doing work and cooperating
with many scientific research units, colleges and universities at house and abroad. We also repeatedly try out to
take up and improve the domestic superior generation technologies, so as to encourage the upgrading and
optimization of the solution and make the solution high quality reach the sophisticated degree at house and overseas.
ESR -type Roots Blower involves several series such as A few-leaves Kind, Two-leaves Sort and Centrifugal
Kind,which can be even more divided to hundreds of versions. The items are broadly used in sewage treatment,
pneumatic conveying,vacuum packaging, aquaculture, meals processing, EPT energy, petrochemical, cement,
mining and other industries. Our products have these kinds of advantages as low noise, strength preserving, steady good quality,
and lengthy support life, and so on.. With the product sales outlets throughout the domestic money metropolitan areas, our items promote nicely all
in excess of the nation, and have been exported to North The us,Russia, Malaysia, Indonesia, Vietnam, South Africa
and some other nations around the world. Obtaining acquired the ISO9001 Worldwide Quality Method Certification, we have
set up and enhanced the good quality assurance of the products designing, production, and set up.
From the process of layout, research and improvement to the concluded products, we have got the whole
procedure managed independently, thus supplying the entire basis and dependability assure for the items balance
and longevity. Obtaining a perfect product sales community and following-income support, we offer our clients with larger-
top quality and far more successful service.All personnel of our organization sincerely welcome the broad masses of friends to
guide, and negotiate company with us.
Our Roots Blower Workshop
Doosn Horzitonal Device Middle
The Application of the Roots Blower
Routine maintenance and inspection
(one) Check out all fasteners and finding pins circumstances whether or not they are loosening.
(2) Often verify regardless of whether the leakage phenomenon of the physique.
(three) Pay out consideration to lubrication, sum of grease and noises when running,
determine whether or not it functions below the essential situations.
(4) Lubricant & grease: The lubricant is for medium load industrial equipment oil
(quality 220, kinematic viscosity of 198 ~ 242mm2 / s 40ºC, flash stage ≥ 200ºC)
The grease is butter (artificial lithium grease penetration 220-250, fall position ≥
190ºC). Replace the lubricant and grease after 1st 200 hrs running, and exchange
yet again soon after a moth operating. Later on, change the lubricant and grease according to the
setting and lubricant (grease) quality propose a suited EPT for 3
months.
(5) Usually examine the inlet air filter, cleanse or exchange the filter in time.
(6) Blower overload often not instantly shown, so spend consideration to
the ingestion and exhaust force, bearing temperature and the recent improve traits
of motor to determine whether or not the blower works normally
(seven) Before disassembling the blower, the assembling relation and proportions
must be recorded or calculated, make marks on parts to make certain the original
specifications after assembling.
(eight) When recently machine or overhaul, the oil tank should be cleaned ahead of use
and suggest replace all grease right after eight hrs working.
Widespread failure cause and troubleshooting
No | Failure | Achievable factors | Elimination strategies |
one | Friction between the impeller |
(1) Impurities on the impeller, ensuing in the gap is also small (2) Gear use, resulting in a massive backlash (three) The equipment is not nicely set, can not maintain the impeller synchronization (four) Bearing dress in ensuing in clearance increasing. |
(one) Get rid of dust and check out no matter whether there is damage parts (two) Change the gear hole, change the gears if the equipment backlash is higher than the average thirty% to fifty% (3)Re-assemble the gears, maintain the taper make contact with location is to 75% (four)Change the bearing |
2 | Collision amongst impeller and wall, the impeller top and casing |
(1) Installation gap is not appropriate (two) functioning pressure is as well high, exceeding the specified worth (3) Operating temperature is way too high (four) Casing or base deformation, positioning supporter failure (five) Bearing axial area is not excellent |
(one) Adjust the hole (two) Identify causes of overloading, reduced the strain to the specified benefit (3) Check the set up accuracy and lessen the pipe rigidity (four) Verify and repair bearings, and to ensure the clearance (5)Relocation |
three | Temperature also high |
(one) Oil in tank is way too a lot, way too thick or way too dirty (two) Filter or silencer is blocked (3)The force is increased than the specified price (4)Abnormal wear of the impeller, huge gap (5)Very poor air flow, indoor temperature is high, resulting in inlet air's substantial temperature (6) The rotating velocity is as well low,end result in the belt slipping. |
(one)Minimize the oil amount or rely on oil (two)Take away of blocking objects (3)Minimizing the force through the blower (four)Fix its clearance (5)Open vents to reduce area temperature (six) Boost pace to avert the belt slipping. |
four | Insufficient stream |
(1) The inlet filter is blocked (two) Impeller use and the hole boosts as well much (3) Belt slipping (4) Massive imports pressure loss (five) Pipeline air flow leakage |
(1) Clear the filter dust and obstruction (2) Fix the hole (three)Tighten the belt and improve the variety of belts (4)Alter the inlet stress to the specified value (five) Examine and fix the pipeline |
5 | Oil leaking or oil leaking into the enclosure |
(1)Large tank position trigger leakage from the discharge port (two) Seal dress in, ensuing in shaft oil spills (three) The force is increased than the specified benefit |
(1)Reduce the oil degree (2)Exchange the seals (three)Very clear the air vents, 2mm diameter faucet is fastened in the middle chamber, open up the faucet underneath the wall |
six | Irregular vibration and noise |
(1)Bearing clearance exceeds the specified price or bearing put on (2) The equipment backlash is way too massive, not in a restricted mounted (3) The overseas objects and dust triggered by the impeller and the impeller, the impeller and the housing collision (four) the impeller shaft deformation induced the collision induced by overload, (five) Friction among the impeller and the inlet housing triggered by overheating (6) Unbalance of the impeller brought on by fouling or overseas physique (seven) Anchor bolts or other fasteners are loosened |
(one)Exchange bearings or bearing seat (two)Reassemble equipment and ensure backlash (3)Cleansing blower, verify the circumstance is destroyed (4)Check out the again force, check the wheel and modify gap (five)Check the filter and back again strain, enhance the hole among the impeller inlet and the casing (six)Thoroughly clean the impeller and the casing, to make sure that the impeller clearance function (7) Tighten the anchor bolts and leveling the base. |
seven | Motor overload |
(1)In comparison with the necessary strain, the pressure distinction is big that the back pressure or the inlet stress is higher (2) When compared with the gear requirements, blower movement is too large, so its stress increases (3)Inlet filter is blocked, or outlet pipe is obstructed or blocked (four) Collusion or friction (trapped) rotating parts (five) The oil level is also substantial (six) Narrow V-belt is overheat, vibration is also massive, or pulley is also modest |
(1) Reduce the force to the specified worth (two) Exhaust the surplus gasoline into the environment or reduce the blower speed (3) Eliminate the obstructions (four)Right away shut down, check out the purpose (five) Modify the oil to the correct degree (6) Verify the belt tension, and replaced it with big diameter pulley. |
Our Services
one. Pre market service two. Following market service
a. advise the suitable model c. online specialized assistance,
b. factory tour d. complete daily life spare areas and techinical assistance
Gurantee
12 months gurantee for our roots blowers
/ The use of authentic gear manufacturer's (OEM) part figures or trademarks , e.g. CASE® and John Deere® are for reference reasons only and for indicating item use and compatibility. Our organization and the listed EPT elements contained herein are not sponsored, authorized, or made by the OEM. /