We – EPG Group the greatest couplings and gears factory in China with 5 distinct branches. For far more specifics: Cellular/whatsapp/telegram/Kakao us at: 0086-13083988828 /
We make all sorts of roots blower, centrifugal blower, Our Major items are as below:
Variety | Diameter | Rate of circulation | Strain |
ESR-MJ(Intense Kind) | Φ50~Φ300mm | .five~140m³/min | 9.8KPa~ninety eight.8Kpa |
ESR(Regular Sort) | Φ50~Φ350mm | .five~140m³/min | nine.8KPa~78.4Kpa |
ESR-H(Large-pressure Kind) | Φ50~Φ350mm | .seven~160m³/min | fifty eight.8KPa~98.8Kpa |
ESR-V(Vacuum Pump) | Φ50~Φ350mm | .five~160m³/min | nine.8KPa~fifty three.3Kpa |
EL Series | Φ200~Φ600mm | twenty.3~750m³/min | nine.8KPa~58.8Kpa |
Multistage Centrifugal Blower or C-Collection |
Φ250~Φ500mm | 50~500m³/min | nine.8KPa~98Kpa |
ERR-ERG Variety | Φ250~Φ500mm | a hundred and twenty~420m³/min | 9.8KPa~98.8Kpa |
The working basic principle of the 3-blade roots blower: two a few-lobed rotors are organized 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 fuel in the chamber is pushed to achieve the
purpose of blowing.
Characteristic of our roots blower:
1. Big adjustment of the air volume
2. Minimal Sound
three. Large effectiveness
four. Lower vitality cosumption
5. Lengthy time existence
6. Dependable running, easy servicing,modest footprint
The parameters of our roots blower:
Sort | Ratary Velocity (r/min) |
Stress Rise (Kpa) |
Capacity (m/min) |
Shaft Electrical power (Kw) |
Motor | Unit Maximn Bodyweight(Kg) |
Power (Kw) |
||||||
ESR-fifty | 1100-2120 | nine.8-fifty eight.8 | .65-two.58 | .3-three.fifty four | .75-4 | 128-158 |
ESR-65 | 1100-2130 | 9.8-58.8 | .94-3.66 | .38-4.46 | .seventy five-five.5 | a hundred and fifty five-185 |
ESR-80 | 1140-1900 | 9.8-58.8 | two.34-five.forty three | one.04-7.42 | 2.2-eleven | 155-277 |
ESR-100 | 1060-1980 | nine.eight-58.8 | four.57-nine.05 | 1.35-12.fifteen | 3-15 | 309-377 |
ESR-a hundred twenty five | 980-1850 | nine.eight-58.8 | five.35-twelve.4 | 1.sixty five-5.19 | five.five-eighteen.five | 408-451 |
ESR-125C | 970-1830 | nine.eight-fifty eight.eight | seven.five-17.57 | 3.2-eighteen.5 | four-22 | 408-451 |
ESR-150 | 810-1730 | nine.8-fifty eight.8 | ten.37-27.15 | three.eighty four-forty.82 | 7.five-45 | 688-848 |
ESR-175 | 970-1520 | nine.eight-fifty eight.8 | 19.65-36.65 | 7.two-45.ninety five | 11-55 | 980-1080 |
ESR-200B | 740-1450 | 9.eight-58.8 | 19.65-forty four.eight | 10.15-sixty.forty four | 15-75 | 1272-1546 |
ESR-200 | 810-1480 | nine.8-fifty eight.8 | 27.65-fifty nine.two | eight.05-80,12 | 15-ninety | 1272-1546 |
ESR-250B | 1100-1480 | 9.8-fifty eight.8 | fifty four.77-77.fifty five | 19.97-90.ninety seven | 30-110 | 1490-2454 |
ESR-250 | 990-1480 | 9.8-fifty eight.eight | 61.4-97.fifty two | twenty.1-117.3 | thirty-132 | 1490-2454 |
ESR-three hundred | 990-1480 | nine.8-fifty eight.8 | 87.1-138.1 | 26.four-167.eight | 37-185 | 3326-3446 |
ESR-350 | 730-1480 | nine.eight-fifty eight.eight | 78.forty one-177.31 | 55-250 | ||
ESR-50H | 1230-2120 | sixty three.7-ninety eight | .forty five-two.02 | 2.05-6.12 | 3-seven.5 | one hundred sixty–a hundred and seventy |
ESR-65H | 1240-2130 | 63.7-98 | .78-two.53 | two.89-7.fifty five | 4-11 | 198-230 |
ESR-80H | 1140-1900 | sixty three.seven-98 | 1.82-four.fifty five | 4.09-10.one | five.5-15 | 316-326 |
ESR-100H | 1060-1980 | 63.seven-98 | 2.65-8.06 | six.36-17.2 | 7.5-22 | 398-459 |
ESR-125H | 980-1850 | sixty three.seven-98 | 4.sixty four-eleven.23 | eight.92-24.two | eleven-thirty | 544-630 |
ESR-150H | 810-1730 | sixty three.seven-ninety eight | 9.53-twenty five.seventy six | 17.sixteen-65 | eighteen.five-seventy five | 752-1571 |
ESR-200H | 810-1480 | 63.7-ninety eight | 25.34-fifty six.92 | forty two.34-a hundred and twenty | 55-132 | 1426-1934 |
ESR-250H | 990-1480 | sixty three.seven-ninety eight | fifty eight-ninety three.7 | 83.two-205 | ninety-220 | 2980-3468 |
ESR300H | 990-1480 | 63.seven-98 | 86.nine-134.one | 114.seven-270 | 132-280 | 3476-3998 |
ERF-245 | 650-980 | nine.eight-ninety eight | forty seven.5-ninety seven.four | sixteen-183 | eighteen.five-two hundred | 3630-3690 |
ERF-250 | 650-980 | nine.eight-98 | 61.six-a hundred and twenty.4 | 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 | 9.eight-seventy eight.four | 97.3-152.5 | 23-227 | 30-250 | 4890-4880 |
ERF-297 | 650-980 | 9.eight-78.four | 87.five-167.six | 26-249 | 30-280 | 5330-5520 |
ERF-three hundred | 650-980 | nine.8-seventy eight.4 | one hundred and one.five-188.7 | 29-278 | 37-315 | 5330-5520 |
ERF-350 | 650-980 | nine.8-78.four | 126-224.9 | 34-249 | forty five-280 | 5210-6470 |
ERG-three hundred | 590-730 | 9.8-ninety eight | 128.3-196 | 38-362 | forty five-four hundred | 9440-15710 |
ERG-350 | 590-730 | 9.8-ninety eight | 159.three-231.6 | forty three-420 | 55-450 | 9700-1571 |
ERG-four hundred | 590-730 | 9.eight-eighty three.3 | 203.1-290.9 | fifty two-449 | seventy five-500 | 10090-11390 |
ERG-445 | 590-730 | 9.8-73.five | 229.7-327.eight | fifty eight-477 | seventy five-560 | 10600-12230 |
ERG-450 | 590-730 | nine.8-73.five | 262.4-366.2 | 64-496 | 75-560 | 10600-12230 |
ERG-500 | 590-730 | 9.eight-63.seven | 327.4-452.4 | seventy eight-529 | 90-560 | 12790-14620 |
ERF-240-V | 650-980 | -9.8- -49 | 38.1-seventy eight | thirteen-76 | 18.5-90 | 3420-3285 |
ERF-245-V | 650-980 | -9.8- -49 | forty seven.five-ninety seven.4 | 16-ninety five | 22-a hundred and ten | 3425-3360 |
ERF-250-V | 650-980 | -9.8- -forty nine | sixty three-one hundred twenty | 19-117 | 22-132 | 3910-3830 |
ERF-290-V | 650-980 | -nine.8- -49 | seventy two.six-a hundred and forty four | 22-136 | thirty-one hundred sixty | 4415-4270 |
ERF-295-V | 650-980 | -nine.8- -49 | seventy six.6-152 | 23-145 | thirty-one hundred sixty | 4425-4485 |
ERF-297-V | 650-980 | -nine.eight- -forty nine | eighty four.three-166.8 | 26-160 | thirty-a hundred and eighty | 5000-4980 |
ERF-three hundred-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 | forty five-250 | 5400-5700 |
ERG-300V | 590-730 | -nine.8- -forty nine | 133-193 | 38-184 | forty five-220 | 7800-9100 |
ERG-350V | 590-730 | -9.8- -forty nine | 163-231 | forty three-216 | fifty five-250 | 9500-9470 |
ERG-400V | 590-730 | -9.eight- -49 | 199-290 | fifty two-269 | seventy five-315 | 9900-10130 |
ERG-445V | 590-730 | -nine.eight- -49 | 224.8-326.9 | fifty eight-303 | 75-355 | 9900-10130 |
ERG-450V | 590-730 | -nine.8- -49 | 255-365 | 64-335 | seventy five-400 | 11230-11300 |
ERG-500V | 590-730 | -nine.8- -49 | 314-452 | 78-412 | 132-450 | 13630-13850 |
ERF-245W | 650-980 | -thirteen.three- -53.three | fifty three.five-one hundred and one | 21.five-102 | thirty-a hundred and ten | 3630-3360 |
ERF-250W | 650-980 | -13.three- -fifty three.3 | 69-127 | 26.5-127 | thirty-one hundred sixty | 3985-4115 |
ERF-290W | 650-980 | -13.three- -fifty three.three | 82.six-a hundred and fifty | 30.5-149 | 37-185 | 4340-4580 |
ERF-295W | 650-980 | -thirteen.three- -53.three | 87-158 | 32-158 | 37-185 | 4440-4580 |
ERF-297W | 650-980 | -thirteen.3- -fifty three.3 | 95-174 | 36-174 | 45-200 | 5230-5130 |
ERF-300W | 650-980 | -thirteen.3- -53.3 | 109-195 | 40-193 | 55-220 | 5230-5130 |
ERF-350W | 650-980 | -thirteen.3- -fifty three.3 | 129-230 | fifty-230 | seventy five-250 | 5840-5670 |
ERG-300W | 590-730 | -13.3- -fifty three.three | 142-197 | fifty two-201 | 75-220 | 9100-9000 |
ERF-350W | 590-730 | -thirteen.3- -53.3 | 168-234.four | 59-235.five | 75-280 | 9500-9600 |
ERG-400W | 590-730 | -thirteen.3- -53.three | 220-276.6 | 71-292 | 90-315 | 9900-10130 |
ERG-445W | 590-730 | -thirteen.three- -53.three | 244-294.6 | eighty two-331 | ninety-400 | 11230-11300 |
ERG450W | 590-730 | -thirteen.3- -fifty three.three | 275-368.5 | ninety one-366 | a hundred and ten-four hundred | 11230-11300 |
ETRF-250 (240,250) |
650-980 | ninety eight-196 | 64.8-112 | 135-355 | 160-400 | 8700-8600 |
ETRF-295 (245,295) |
650-980 | 98-196 | 80.eight-139 | 167-439 | 185-500 | 9200-9100 |
ETRF-three hundred (245,295) |
650-980 | 98-176.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 (three hundred,four hundred) |
590-740 | 98-176.four | 205-273 | 380-773 | 450-900 | 21350-24200 |
ETRG-450 (350,450) |
590-740 | 98-176.four | 263-428 | 476-955 | 560-1000 | 24200-27600 |
ETRF-250W (240,250) |
650-980 | -fifty three.three–80 | 72-121 | seventy five.six-121 | 90-a hundred and sixty | 6100-6470 |
ETRF-295W (245/295) |
650-980 | -53.three–80 | ninety three.8-154 | 99.5-186 | a hundred and ten-220 | 7000-6400 |
ETRF-300W (2505/300) |
650-980 | -fifty three.3–eighty | 116-189 | 115-220 | 132-250 | 7750-7760 |
EL81WD | 580-980 | nine.eight-58.8 | fifty four.two-one hundred thirty | 18-151 | forty five-185 | 3595 |
EL82WDB | 580-980 | 9.8-58.8 | 72.8-161 | 22-191 | forty five-220 | 3860 |
EL83WDA | 580-980 | nine.8-58.9 | 101-213 | 28.5-202 | 45-220 | 4300 |
EL84WDA | 580-980 | nine.8-fifty eight.8 | 129-267 | 35.4-252 | forty five-280 | 4720 |
EL93WDA | 580-730 | 9.8-49 | 230-329 | fifty six.four-311 | seventy five-355 | 7765 |
EL94WDA | 580-730 | nine.eight-forty nine | 263-373 | sixty four-353 | 75-four hundred | 8130 |
EL95WDA | 490-580 | 9.8-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-nine | |||
E408WN | 870-1650 | forty | ten-22 | |||
E517WN | 980-1580 | 40 | twenty-thirty | |||
E520WN | 930-1550 | 40 | 24-forty five | |||
E607WN | 750-1250 | forty | 45-76 | |||
E610WN | 750-1250 | 40 | 75-one hundred thirty |
Spare parts and structure of our roots blower:
Bundle of our Roots Blower
Pack into iron scenario, two layer,blower physique and motor in reduce layer, inlet/out silencer and so on in upper layer
Roots blower pack strategy very same as iron scenario, just adjust to Fumigation Free of charge Plywood Situation
Our manufacturing facility is a skilled manufacturer of Roots blowers which has over twenty years’ experience in equipment
producing. It is found in Xihu (West Lake) Dis. East Industrial Park, fifty kilometers to the east of Shan EPT provincial
cash— HangZhou. Our company also has practical site visitors transportation, as it is 15 kilometers away from
Diaozhen City station of HangZhou-HangZhou expressway, and thirty kilometers away from East HangZhou station of
ZheJiang -ZheJiang expressway.The leading product of our company is ESR -kind Roots Blower. The roots
vacuum pump is a new type of large-efficiency roots blower, which is created independently based mostly on the
domestic and overseas innovative technologies. Several patented technologies have been adopted on Roots
Blower, and thus we have produced substantial effects in vitality conservation and noise reduction, and so forth.. So significantly, our
company has invested more than thirty,000,000 RMB to introduce this kind of sophisticated professional equipment as
horizontal machining centre, vertical machining center, two-way CNC surface planer, CNC lathe, CNC milling
device, CNC planer, plane grinder, cylindrical grinding device, and 3 coordinates tests machine.
Besides, we have taken different steps to standardize the procedure circulation this kind of as doing work and cooperating
with numerous scientific research units, faculties and universities at property and abroad. We also repeatedly try to
take up and increase the domestic superior production systems, so as to advertise the upgrading and
optimization of the product and make the item high quality get to the advanced stage at house and abroad.
ESR -sort Roots Blower contains many series this kind of as Three-leaves Variety, Two-leaves Variety and Centrifugal
Type,which can be additional divided to hundreds of types. The products are broadly used in sewage treatment method,
pneumatic conveying,vacuum packaging, aquaculture, foodstuff processing, EPT power, petrochemical, cement,
mining and other industries. Our products have this sort of benefits as low sound, vitality preserving, stable high quality,
and lengthy provider life, and many others.. With the income outlets throughout the domestic cash metropolitan areas, our products market well all
more than the country, and have been exported to North The usa,Russia, Malaysia, Indonesia, Vietnam, South Africa
and some other nations around the world. Getting received the ISO9001 Worldwide High quality Method Certification, we have
set up and enhanced the quality assurance of the merchandise planning, production, and set up.
From the process of layout, investigation and improvement to the finished goods, we have got the entire
method managed independently, hence offering the total basis and trustworthiness ensure for the merchandise security
and toughness. Obtaining a perfect income network and soon after-income service, we give our clients with larger-
good quality and more successful provider.All workers of our firm sincerely welcome the broad masses of close friends to
information, and negotiate organization with us.
Our Roots Blower Workshop
Doosn Horzitonal Machine Middle
The Software of the Roots Blower
Routine maintenance and inspection
(one) Verify all fasteners and finding pins conditions regardless of whether they are loosening.
(two) Always examine whether or not the leakage phenomenon of the physique.
(3) Pay focus to lubrication, amount of grease and noises when working,
figure out whether or not it performs under the essential conditions.
(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). Substitute the lubricant and grease soon after initial two hundred hours managing, and replace
yet again following a moth managing. Afterwards, replace the lubricant and grease in accordance to the
environment and lubricant (grease) good quality propose a appropriate EPT for a few
months.
(5) Constantly check out the inlet air filter, clean or change the filter in time.
(six) Blower overload sometimes not quickly shown, so shell out focus to
the consumption and exhaust force, bearing temperature and the existing enhance traits
of motor to decide regardless of whether the blower works generally
(seven) Before disassembling the blower, the assembling relation and dimensions
have to be recorded or calculated, make marks on parts to make sure the unique
demands right after assembling.
(eight) When recently machine or overhaul, the oil tank must be cleaned prior to use
and propose replace all grease soon after eight hours running.
Common failure reason and troubleshooting
No | Failure | Possible factors | Elimination techniques |
one | Friction in between the impeller |
(1) Impurities on the impeller, resulting in the gap is as well tiny (2) Gear dress in, resulting in a huge backlash (three) The gear is not effectively mounted, can not keep the impeller synchronization (4) Bearing put on resulting in clearance escalating. |
(1) Get rid of filth and verify no matter whether there is injury components (two) Modify the gear gap, exchange the gears if the gear backlash is greater than the common thirty% to fifty% (3)Re-assemble the gears, preserve the taper contact area is to seventy five% (four)Exchange the bearing |
2 | Collision in between impeller and wall, the impeller leading and casing |
(1) Set up hole is not appropriate (two) working strain is as well high, exceeding the specified benefit (three) Running temperature is also high (four) Casing or base deformation, positioning admirer failure (5) Bearing axial spot is not excellent |
(1) Modify the hole (two) Discover triggers of overloading, reduced the stress to the specified price (3) Check the installation accuracy and minimize the pipe rigidity (4) Check and repair bearings, and to make sure the clearance (five)Relocation |
3 | Temperature also substantial |
(one) Oil in tank is also considerably, too thick or as well filthy (2) Filter or silencer is blocked (three)The stress is larger than the specified value (4)Too much dress in of the impeller, massive hole (five)Poor air flow, indoor temperature is high, ensuing in inlet air’s higher temperature (6) The rotating pace is also reduced,end result in the belt slipping. |
(one)Lessen the oil amount or depend on oil (2)Eliminate of blocking objects (3)Minimizing the stress by way of the blower (4)Fix its clearance (five)Open vents to lessen space temperature (six) Improve velocity to prevent the belt slipping. |
four | Insufficient movement |
(one) The inlet filter is blocked (two) Impeller put on and the gap raises way too considerably (3) Belt slipping (four) Large imports stress decline (5) Pipeline ventilation leakage |
(1) Cleanse the filter dust and obstruction (2) Mend the hole (three)Tighten the belt and increase the quantity of belts (4)Change the inlet pressure to the specified worth (five) Verify and fix the pipeline |
five | Oil leaking or oil leaking into the enclosure |
(one)Large tank position lead to leakage from the discharge port (two) Seal dress in, ensuing in shaft oil spills (3) The pressure is increased than the specified price |
(1)Lessen the oil amount (2)Exchange the seals (three)Clear the air vents, 2mm diameter faucet is set in the center chamber, open up the faucet below the wall |
6 | Irregular vibration and noise |
(one)Bearing clearance exceeds the specified benefit or bearing put on (two) The equipment backlash is way too huge, not in a limited fastened (3) The international objects and dust triggered by the impeller and the impeller, the impeller and the housing collision (four) the impeller shaft deformation induced the collision triggered by overload, (5) Friction between the impeller and the inlet housing brought on by overheating (6) Unbalance of the impeller brought on by fouling or international entire body (seven) Anchor bolts or other fasteners are loosened |
(one)Substitute bearings or bearing seat (2)Reassemble gear and make certain backlash (3)Cleaning blower, verify the circumstance is broken (four)Check the again stress, check the wheel and change hole (5)Examine the filter and again stress, improve the gap in between the impeller inlet and the casing (6)Thoroughly clean the impeller and the casing, to guarantee that the impeller clearance function (seven) Tighten the anchor bolts and leveling the base. |
7 | Motor overload |
(1)In comparison with the essential strain, the strain big difference is huge that the back again pressure or the inlet pressure is large (two) Compared with the tools demands, blower circulation is as well large, so its force will increase (3)Inlet filter is blocked, or outlet pipe is obstructed or blocked (four) Collusion or friction (caught) rotating areas (five) The oil level is too substantial (6) Slim V-belt is overheat, vibration is way too huge, or pulley is way too small |
(1) Lessen the strain to the specified value (two) Exhaust the excess fuel into the environment or lessen the blower velocity (three) Take away the obstructions (four)Immediately shut down, verify the cause (five) Modify the oil to the right stage (6) Check out the belt stress, and changed it with massive diameter pulley. |
Our Support
one. Pre sell service 2. Following market service
a. recommend the suited model c. online technological assistance,
b. manufacturing unit tour d. complete life spare areas and techinical support
Gurantee
12 months gurantee for our roots blowers
/ The use of authentic products manufacturer’s (OEM) element quantities or emblems , e.g. CASE® and John Deere® are for reference needs only and for indicating item use and compatibility. Our company and the shown EPT parts contained herein are not sponsored, approved, or produced by the OEM. /