We – EPG Team the most significant couplings and gears manufacturing unit in China with 5 different branches. For more particulars: Mobile/whatsapp/telegram/Kakao us at: 0086-13083988828 /
We make all sorts of roots blower, centrifugal blower, Our Principal goods are as under:
Type | Diameter | Charge of circulation | Stress |
ESR-MJ(Intense Type) | Φ50~Φ300mm | .5~140m³/min | nine.8KPa~ninety eight.8Kpa |
ESR(Regular Type) | Φ50~Φ350mm | .five~140m³/min | 9.8KPa~seventy eight.4Kpa |
ESR-H(High-force Sort) | Φ50~Φ350mm | .7~160m³/min | 58.8KPa~98.8Kpa |
ESR-V(Vacuum Pump) | Φ50~Φ350mm | .five~160m³/min | nine.8KPa~53.3Kpa |
EL Sequence | Φ200~Φ600mm | twenty.three~750m³/min | 9.8KPa~fifty eight.8Kpa |
Multistage Centrifugal Blower or C-Sequence |
Φ250~Φ500mm | 50~500m³/min | nine.8KPa~98Kpa |
ERR-ERG Sort | Φ250~Φ500mm | a hundred and twenty~420m³/min | nine.8KPa~ninety eight.8Kpa |
The functioning principle of the 3-blade roots blower: two three-lobed rotors are arranged in the cavity, and the
suction port and the discharge port are opened on the two sides of the cavity. By means of the action 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 fuel in the chamber is pushed to achieve the
function of blowing.
Function of our roots blower:
one. Large adjustment of the air volume
two. Lower Noise
3. Higher efficiency
4. Reduced power cosumption
5. Lengthy time life
six. Reputable managing, easy maintenance,tiny footprint
The parameters of our roots blower:
Sort | Ratary Pace (r/min) |
Force Increase (Kpa) |
Capability (m/min) |
Shaft Energy (Kw) |
Motor | Unit Maximn Bodyweight(Kg) |
Energy (Kw) |
||||||
ESR-50 | 1100-2120 | nine.8-58.eight | .sixty five-two.fifty eight | .three-three.fifty four | .75-four | 128-158 |
ESR-65 | 1100-2130 | 9.eight-fifty eight.8 | .94-three.sixty six | .38-four.forty six | .seventy five-five.five | 155-185 |
ESR-eighty | 1140-1900 | nine.8-58.8 | two.34-5.43 | 1.04-seven.forty two | 2.2-eleven | a hundred and fifty five-277 |
ESR-100 | 1060-1980 | nine.8-fifty eight.eight | 4.fifty seven-nine.05 | one.35-12.fifteen | 3-15 | 309-377 |
ESR-a hundred twenty five | 980-1850 | 9.8-fifty eight.8 | 5.35-twelve.four | one.65-5.19 | 5.5-18.5 | 408-451 |
ESR-125C | 970-1830 | 9.8-58.8 | 7.5-seventeen.57 | three.two-18.five | 4-22 | 408-451 |
ESR-a hundred and fifty | 810-1730 | 9.8-fifty eight.8 | ten.37-27.fifteen | three.84-forty.eighty two | seven.five-forty five | 688-848 |
ESR-one hundred seventy five | 970-1520 | 9.eight-58.eight | 19.65-36.65 | 7.2-45.95 | 11-55 | 980-1080 |
ESR-200B | 740-1450 | 9.eight-58.8 | 19.65-forty four.eight | 10.15-60.44 | 15-75 | 1272-1546 |
ESR-200 | 810-1480 | 9.8-58.eight | 27.65-59.2 | 8.05-80,12 | 15-ninety | 1272-1546 |
ESR-250B | 1100-1480 | nine.eight-58.8 | 54.seventy seven-seventy seven.fifty five | 19.97-90.97 | thirty-a hundred and ten | 1490-2454 |
ESR-250 | 990-1480 | 9.eight-58.eight | 61.4-ninety seven.52 | twenty.one-117.3 | thirty-132 | 1490-2454 |
ESR-three hundred | 990-1480 | 9.eight-fifty eight.eight | 87.one-138.one | 26.four-167.8 | 37-185 | 3326-3446 |
ESR-350 | 730-1480 | nine.eight-fifty eight.eight | 78.forty one-177.31 | fifty five-250 | ||
ESR-50H | 1230-2120 | sixty three.7-98 | .45-two.02 | 2.05-six.twelve | 3-7.5 | 160–170 |
ESR-65H | 1240-2130 | sixty three.seven-98 | .78-2.53 | 2.89-seven.fifty five | 4-eleven | 198-230 |
ESR-80H | 1140-1900 | 63.7-98 | 1.82-four.fifty five | 4.09-10.1 | 5.five-15 | 316-326 |
ESR-100H | 1060-1980 | sixty three.7-98 | 2.sixty five-8.06 | six.36-seventeen.two | 7.5-22 | 398-459 |
ESR-125H | 980-1850 | 63.seven-98 | 4.sixty four-11.23 | 8.92-24.two | eleven-30 | 544-630 |
ESR-150H | 810-1730 | sixty three.seven-ninety eight | nine.fifty three-25.seventy six | 17.16-sixty five | eighteen.five-seventy five | 752-1571 |
ESR-200H | 810-1480 | sixty three.seven-ninety eight | twenty five.34-fifty six.92 | forty two.34-one hundred twenty | fifty five-132 | 1426-1934 |
ESR-250H | 990-1480 | 63.seven-98 | fifty eight-ninety three.7 | eighty three.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 | nine.8-ninety eight | 47.5-97.4 | sixteen-183 | eighteen.five-two hundred | 3630-3690 |
ERF-250 | 650-980 | nine.eight-ninety eight | sixty one.6-120.4 | 19-227 | 22-250 | 4450-4500 |
ERF-290 | 650-980 | nine.eight-78.four | 92.three-128 | 22-213 | thirty-250 | 4890-4710 |
ERF-295 | 650-980 | nine.8-78.four | ninety seven.three-152.5 | 23-227 | 30-250 | 4890-4880 |
ERF-297 | 650-980 | nine.eight-seventy eight.four | 87.five-167.six | 26-249 | 30-280 | 5330-5520 |
ERF-three hundred | 650-980 | 9.8-78.four | 101.5-188.seven | 29-278 | 37-315 | 5330-5520 |
ERF-350 | 650-980 | 9.eight-seventy eight.four | 126-224.nine | 34-249 | 45-280 | 5210-6470 |
ERG-three hundred | 590-730 | 9.eight-98 | 128.3-196 | 38-362 | forty five-four hundred | 9440-15710 |
ERG-350 | 590-730 | nine.eight-ninety eight | 159.3-231.6 | forty three-420 | 55-450 | 9700-1571 |
ERG-four hundred | 590-730 | 9.8-83.three | 203.1-290.nine | fifty two-449 | 75-500 | 10090-11390 |
ERG-445 | 590-730 | 9.8-seventy three.5 | 229.7-327.8 | fifty eight-477 | seventy five-560 | 10600-12230 |
ERG-450 | 590-730 | nine.8-seventy three.5 | 262.4-366.2 | 64-496 | seventy five-560 | 10600-12230 |
ERG-500 | 590-730 | 9.eight-63.7 | 327.four-452.4 | seventy eight-529 | 90-560 | 12790-14620 |
ERF-240-V | 650-980 | -9.eight- -49 | 38.one-seventy eight | thirteen-seventy six | eighteen.5-ninety | 3420-3285 |
ERF-245-V | 650-980 | -9.8- -forty nine | forty seven.five-ninety seven.four | 16-95 | 22-one hundred ten | 3425-3360 |
ERF-250-V | 650-980 | -nine.eight- -49 | sixty three-a hundred and twenty | 19-117 | 22-132 | 3910-3830 |
ERF-290-V | 650-980 | -nine.eight- -49 | 72.6-a hundred and forty four | 22-136 | 30-160 | 4415-4270 |
ERF-295-V | 650-980 | -nine.eight- -forty nine | seventy six.six-152 | 23-a hundred forty five | 30-a hundred and sixty | 4425-4485 |
ERF-297-V | 650-980 | -9.8- -forty nine | eighty four.3-166.eight | 26-a hundred and sixty | 30-180 | 5000-4980 |
ERF-three hundred-V | 650-980 | -nine.eight- -forty nine | ninety seven-192 | 29-178 | 37-200 | 5000-4980 |
ERF-350-V | 650-980 | -nine.eight- -49 | 116-225 | 34-209 | 45-250 | 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 | -nine.eight- -forty nine | 199-290 | 52-269 | seventy five-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.eight- -forty nine | 255-365 | 64-335 | seventy five-400 | 11230-11300 |
ERG-500V | 590-730 | -nine.8- -49 | 314-452 | seventy eight-412 | 132-450 | 13630-13850 |
ERF-245W | 650-980 | -13.three- -53.3 | fifty three.five-101 | 21.5-102 | thirty-110 | 3630-3360 |
ERF-250W | 650-980 | -13.3- -53.three | sixty nine-127 | 26.five-127 | 30-one hundred sixty | 3985-4115 |
ERF-290W | 650-980 | -thirteen.three- -53.three | 82.six-a hundred and fifty | 30.five-149 | 37-185 | 4340-4580 |
ERF-295W | 650-980 | -13.3- -fifty three.three | 87-158 | 32-158 | 37-185 | 4440-4580 |
ERF-297W | 650-980 | -13.3- -fifty three.three | ninety five-174 | 36-174 | forty five-two hundred | 5230-5130 |
ERF-300W | 650-980 | -13.3- -fifty three.three | 109-195 | 40-193 | 55-220 | 5230-5130 |
ERF-350W | 650-980 | -thirteen.3- -53.three | 129-230 | fifty-230 | 75-250 | 5840-5670 |
ERG-300W | 590-730 | -thirteen.three- -fifty three.three | 142-197 | 52-201 | 75-220 | 9100-9000 |
ERF-350W | 590-730 | -13.3- -fifty three.three | 168-234.four | fifty nine-235.5 | 75-280 | 9500-9600 |
ERG-400W | 590-730 | -13.3- -53.three | 220-276.six | 71-292 | 90-315 | 9900-10130 |
ERG-445W | 590-730 | -13.three- -fifty three.3 | 244-294.six | 82-331 | ninety-four hundred | 11230-11300 |
ERG450W | 590-730 | -13.3- -53.3 | 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 | one hundred thirty five-355 | a hundred and sixty-400 | 8700-8600 |
ETRF-295 (245,295) |
650-980 | 98-196 | eighty.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-137.2 | 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 | ninety eight-176.4 | 263-428 | 476-955 | 560-one thousand | 24200-27600 |
ETRF-250W (240,250) |
650-980 | -53.3–80 | 72-121 | 75.six-121 | ninety-one hundred sixty | 6100-6470 |
ETRF-295W (245/295) |
650-980 | -53.three–eighty | 93.8-154 | ninety nine.5-186 | 110-220 | 7000-6400 |
ETRF-300W (2505/300) |
650-980 | -53.three–eighty | 116-189 | 115-220 | 132-250 | 7750-7760 |
EL81WD | 580-980 | 9.eight-fifty eight.8 | fifty four.two-a hundred thirty | 18-151 | forty five-185 | 3595 |
EL82WDB | 580-980 | 9.8-fifty eight.eight | seventy two.eight-161 | 22-191 | 45-220 | 3860 |
EL83WDA | 580-980 | 9.8-fifty eight.nine | one hundred and one-213 | 28.five-202 | forty five-220 | 4300 |
EL84WDA | 580-980 | nine.eight-58.8 | 129-267 | 35.4-252 | forty five-280 | 4720 |
EL93WDA | 580-730 | nine.8-49 | 230-329 | 56.4-311 | 75-355 | 7765 |
EL94WDA | 580-730 | 9.eight-49 | 263-373 | 64-353 | seventy five-400 | 8130 |
EL95WDA | 490-580 | nine.eight-58.8 | 308-434 | 81.4-414 | ninety-450 | 11500 |
EL96WDA | 580 | 58.eight | 381 | 497 | 560 | 11500 |
E397WN | 1000-1650 | 40 | five-nine | |||
E408WN | 870-1650 | 40 | 10-22 | |||
E517WN | 980-1580 | forty | 20-thirty | |||
E520WN | 930-1550 | forty | 24-forty five | |||
E607WN | 750-1250 | forty | forty five-76 | |||
E610WN | 750-1250 | 40 | 75-one hundred thirty |
Spare areas and composition of our roots blower:
Bundle of our Roots Blower
Pack into iron case, two layer,blower human body and motor in lower layer, inlet/out silencer and so on in higher layer
Roots blower pack strategy same as iron scenario, just modify to Fumigation Totally free Plywood Circumstance
Our manufacturing facility is a skilled producer of Roots blowers which has over 20 years’ experience in equipment
manufacturing. It is situated in Xihu (West Lake) Dis. East Industrial Park, fifty kilometers to the east of Shan EPT provincial
capital— HangZhou. Our company also has practical visitors transportation, as it is fifteen kilometers away from
Diaozhen Town station of HangZhou-HangZhou expressway, and 30 kilometers absent from East HangZhou station of
ZheJiang -ZheJiang expressway.The foremost item of our organization is ESR -type Roots Blower. The roots
vacuum pump is a new variety of large-performance roots blower, which is designed independently based mostly on the
domestic and foreign innovative systems. Numerous patented technologies have been adopted on Roots
Blower, and thus we have manufactured considerable outcomes in vitality conservation and noise reduction, and so forth.. So far, our
business has invested much more than 30,000,000 RMB to introduce this sort of sophisticated specialist gear as
horizontal machining center, vertical machining heart, two-way CNC surface area planer, CNC lathe, CNC milling
equipment, CNC planer, aircraft grinder, cylindrical grinding equipment, and a few coordinates tests equipment.
Apart from, we have taken a variety of steps to standardize the method stream these kinds of as working and cooperating
with many scientific research units, colleges and universities at house and overseas. We also constantly consider to
take up and improve the domestic sophisticated production technologies, so as to market the upgrading and
optimization of the merchandise and make the merchandise top quality achieve the advanced amount at residence and overseas.
ESR -sort Roots Blower contains many series this kind of as A few-leaves Type, Two-leaves Kind and Centrifugal
Type,which can be additional divided to hundreds of versions. The items are extensively employed in sewage therapy,
pneumatic conveying,vacuum packaging, aquaculture, foodstuff processing, EPT energy, petrochemical, cement,
mining and other industries. Our products have such advantages as minimal sounds, power saving, stable high quality,
and extended provider life, and many others.. With the income outlets throughout the domestic funds cities, our goods sell nicely all
more than the place, and have been exported to North The us,Russia, Malaysia, Indonesia, Vietnam, South Africa
and some other countries. Getting got the ISO9001 International High quality Program Certification, we have
set up and enhanced the good quality assurance of the items designing, producing, and set up.
From the process of style, investigation and growth to the finished items, we have got the complete
method managed independently, thus delivering the entire foundation and trustworthiness ensure for the goods security
and sturdiness. Getting a perfect product sales network and after-sales service, we give our customers with higher-
quality and far more productive services.All employees of our organization sincerely welcome the broad masses of friends to
manual, and negotiate business with us.
Our Roots Blower Workshop
Doosn Horzitonal Machine Middle
The Software of the Roots Blower
Upkeep and inspection
(1) Verify all fasteners and finding pins problems no matter whether they are loosening.
(2) Often examine whether or not the leakage phenomenon of the entire body.
(3) Pay interest to lubrication, volume of grease and noises when operating,
decide whether or not it operates under the required conditions.
(4) Lubricant & grease: The lubricant is for medium load industrial equipment oil
(grade 220, kinematic viscosity of 198 ~ 242mm2 / s 40ºC, flash position ≥ 200ºC)
The grease is butter (artificial lithium grease penetration 220-250, fall stage ≥
190ºC). Replace the lubricant and grease following first 200 hours managing, and change
once again after a moth working. Later on, replace the lubricant and grease in accordance to the
atmosphere and lubricant (grease) good quality propose a suitable EPT for three
months.
(5) Constantly check the inlet air filter, cleanse or replace the filter in time.
(six) Blower overload occasionally not right away displayed, so spend focus to
the intake and exhaust pressure, bearing temperature and the current enhance traits
of motor to figure out whether or not the blower works usually
(seven) Just before disassembling the blower, the assembling relation and proportions
must be recorded or calculated, make marks on elements to make sure the first
requirements right after assembling.
(eight) When recently equipment or overhaul, the oil tank need to be cleaned before use
and suggest exchange all grease after 8 hours working.
Frequent failure cause and troubleshooting
No | Failure | Possible reasons | Elimination methods |
one | Friction amongst the impeller |
(one) Impurities on the impeller, resulting in the hole is too small (2) Equipment dress in, ensuing in a big backlash (3) The equipment is not nicely mounted, can not keep the impeller synchronization (four) Bearing wear ensuing in clearance escalating. |
(1) Remove filth and verify no matter whether there is hurt parts (two) Modify the equipment hole, change the gears if the equipment backlash is greater than the average thirty% to 50% (three)Re-assemble the gears, maintain the taper contact region is to seventy five% (four)Exchange the bearing |
two | Collision among impeller and wall, the impeller best and casing |
(one) Installation hole is not right (two) operating stress is way too large, exceeding the specified worth (three) Running temperature is also high (four) Casing or base deformation, positioning enthusiast failure (five) Bearing axial spot is not very good |
(one) Modify the gap (2) Discover triggers of overloading, reduced the stress to the specified price (three) Examine the installation precision and minimize the pipe tension (four) Examine and mend bearings, and to make sure the clearance (5)Relocation |
3 | Temperature as well substantial |
(1) Oil in tank is too a lot, way too thick or also dirty (2) Filter or silencer is blocked (three)The strain is increased than the specified price (4)Too much dress in of the impeller, big gap (five)Inadequate air flow, indoor temperature is large, ensuing in inlet air’s high temperature (6) The rotating pace is way too minimal,consequence in the belt slipping. |
(one)Minimize the oil amount or rely on oil (two)Get rid of of blocking objects (three)Reducing the strain through the blower (4)Mend its clearance (5)Open up vents to decrease space temperature (six) Improve velocity to prevent the belt slipping. |
four | Insufficient stream |
(one) The inlet filter is blocked (two) Impeller put on and the gap boosts way too much (three) Belt slipping (four) Large imports pressure decline (5) Pipeline air flow leakage |
(1) Clean the filter dust and obstruction (2) Restore the hole (3)Tighten the belt and enhance the amount of belts (4)Adjust the inlet pressure to the specified value (5) Verify and restore the pipeline |
five | Oil leaking or oil leaking into the enclosure |
(1)Higher tank position cause leakage from the discharge port (2) Seal put on, resulting in shaft oil spills (three) The force is greater than the specified price |
(one)Lessen the oil stage (two)Change the seals (3)Clear the air vents, 2mm diameter faucet is set in the center chamber, open up the faucet underneath the wall |
6 | Irregular vibration and sounds |
(one)Bearing clearance exceeds the specified benefit or bearing dress in (two) The equipment backlash is too large, not in a limited fastened (three) The international objects and dust caused by the impeller and the impeller, the impeller and the housing collision (4) the impeller shaft deformation caused the collision caused by overload, (five) Friction amongst the impeller and the inlet housing induced by overheating (six) Unbalance of the impeller caused by fouling or foreign human body (seven) Anchor bolts or other fasteners are loosened |
(one)Exchange bearings or bearing seat (two)Reassemble gear and make sure backlash (3)Cleansing blower, examine the situation is destroyed (four)Verify the again strain, examine the wheel and alter hole (five)Examine the filter and back pressure, boost the hole between the impeller inlet and the casing (six)Clear the impeller and the casing, to make sure that the impeller clearance function (seven) Tighten the anchor bolts and leveling the base. |
7 | Motor overload |
(one)In comparison with the necessary stress, the stress difference is massive that the back force or the inlet force is substantial (2) When compared with the tools specifications, blower circulation is also big, so its strain boosts (three)Inlet filter is blocked, or outlet pipe is obstructed or blocked (four) Collusion or friction (caught) rotating parts (5) The oil stage is way too high (6) Slim V-belt is overheat, vibration is as well large, or pulley is also tiny |
(one) Reduce the stress to the specified benefit (two) Exhaust the excessive gasoline into the atmosphere or reduce the blower velocity (three) Get rid of the obstructions (four)Instantly shut down, check out the cause (five) Adjust the oil to the proper degree (6) Check out the belt rigidity, and changed it with big diameter pulley. |
Our Support
one. Pre offer service 2. Following market service
a. advocate the suited model c. on the internet complex help,
b. factory tour d. whole life spare areas and techinical assistance
Gurantee
12 months gurantee for our roots blowers
/ The use of first equipment manufacturer’s (OEM) element figures or trademarks , e.g. CASE® and John Deere® are for reference functions only and for indicating solution use and compatibility. Our business and the listed EPT areas contained herein are not sponsored, accredited, or manufactured by the OEM. /