We – EPG Team the greatest couplings and gears manufacturing facility in China with five various branches. For more information: Mobile/whatsapp/telegram/Kakao us at: 0086-13083988828 /
We make all sorts of roots blower, centrifugal blower, Our Primary goods are as below:
| Sort | Diameter | Rate of flow | Strain |
| ESR-MJ(Intensive Type) | Φ50~Φ300mm | .five~140m³/min | nine.8KPa~ninety eight.8Kpa |
| ESR(Common Type) | Φ50~Φ350mm | .five~140m³/min | nine.8KPa~78.4Kpa |
| ESR-H(Substantial-strain Type) | Φ50~Φ350mm | .seven~160m³/min | fifty eight.8KPa~98.8Kpa |
| ESR-V(Vacuum Pump) | Φ50~Φ350mm | .five~160m³/min | 9.8KPa~53.3Kpa |
| EL Sequence | Φ200~Φ600mm | twenty.three~750m³/min | nine.8KPa~fifty eight.8Kpa |
| Multistage Centrifugal Blower or C-Series |
Φ250~Φ500mm | fifty~500m³/min | nine.8KPa~98Kpa |
| ERR-ERG Type | Φ250~Φ500mm | one hundred twenty~420m³/min | 9.8KPa~ninety eight.8Kpa |
The working basic principle of the three-blade roots blower: two three-lobed rotors are arranged in the cavity, and the
suction port and the discharge port are opened on equally sides of the cavity. Via 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 fuel in the chamber is pushed to accomplish the
function of blowing.
Feature of our roots blower:
one. Huge adjustment of the air volume
2. Lower Noise
three. Higher effectiveness
4. Minimal vitality cosumption
5. Lengthy time life
six. Trustworthy working, simple servicing,little footprint
The parameters of our roots blower:
| Sort | Ratary Speed (r/min) |
Pressure Increase (Kpa) |
Capacity (m/min) |
Shaft Electrical power (Kw) |
Motor | Device Maximn Excess weight(Kg) |
| Electrical power (Kw) |
||||||
| ESR-fifty | 1100-2120 | nine.8-58.8 | .sixty five-2.58 | .three-three.54 | .seventy five-4 | 128-158 |
| ESR-65 | 1100-2130 | nine.8-fifty eight.eight | .94-3.sixty six | .38-four.46 | .75-5.5 | 155-185 |
| ESR-80 | 1140-1900 | nine.eight-58.8 | 2.34-five.43 | one.04-7.42 | 2.two-eleven | 155-277 |
| ESR-a hundred | 1060-1980 | nine.eight-58.eight | 4.fifty seven-9.05 | one.35-12.15 | 3-fifteen | 309-377 |
| ESR-a hundred twenty five | 980-1850 | 9.8-58.8 | five.35-12.4 | 1.65-5.19 | 5.5-eighteen.5 | 408-451 |
| ESR-125C | 970-1830 | 9.8-58.eight | 7.5-seventeen.fifty seven | three.2-eighteen.five | four-22 | 408-451 |
| ESR-150 | 810-1730 | 9.8-fifty eight.eight | 10.37-27.fifteen | three.eighty four-forty.82 | 7.5-45 | 688-848 |
| ESR-a hundred seventy five | 970-1520 | nine.eight-58.eight | 19.65-36.65 | seven.two-45.ninety five | eleven-55 | 980-1080 |
| ESR-200B | 740-1450 | 9.8-58.eight | 19.65-44.eight | 10.15-60.forty four | fifteen-75 | 1272-1546 |
| ESR-200 | 810-1480 | nine.8-fifty eight.eight | 27.sixty five-59.two | eight.05-80,12 | 15-ninety | 1272-1546 |
| ESR-250B | 1100-1480 | 9.8-58.8 | 54.seventy seven-77.55 | 19.97-90.97 | 30-a hundred and ten | 1490-2454 |
| ESR-250 | 990-1480 | nine.8-58.eight | 61.four-ninety seven.52 | 20.1-117.3 | 30-132 | 1490-2454 |
| ESR-300 | 990-1480 | nine.8-58.eight | 87.1-138.1 | 26.4-167.eight | 37-185 | 3326-3446 |
| ESR-350 | 730-1480 | 9.8-fifty eight.8 | 78.forty one-177.31 | fifty five-250 | ||
| ESR-50H | 1230-2120 | 63.seven-ninety eight | .forty five-2.02 | 2.05-six.12 | 3-seven.five | 160–a hundred and seventy |
| ESR-65H | 1240-2130 | sixty three.7-98 | .78-2.fifty three | 2.89-7.fifty five | four-eleven | 198-230 |
| ESR-80H | 1140-1900 | 63.seven-ninety eight | 1.eighty two-four.55 | 4.09-10.1 | five.five-15 | 316-326 |
| ESR-100H | 1060-1980 | 63.7-ninety eight | two.sixty five-eight.06 | 6.36-seventeen.2 | seven.five-22 | 398-459 |
| ESR-125H | 980-1850 | sixty three.7-98 | four.64-eleven.23 | eight.92-24.two | eleven-thirty | 544-630 |
| ESR-150H | 810-1730 | 63.seven-98 | nine.fifty three-twenty five.76 | seventeen.sixteen-65 | eighteen.5-seventy five | 752-1571 |
| ESR-200H | 810-1480 | sixty three.seven-98 | 25.34-fifty six.92 | forty two.34-a hundred and twenty | 55-132 | 1426-1934 |
| ESR-250H | 990-1480 | 63.7-98 | 58-93.7 | eighty three.two-205 | ninety-220 | 2980-3468 |
| ESR300H | 990-1480 | 63.7-ninety eight | 86.9-134.1 | 114.7-270 | 132-280 | 3476-3998 |
| ERF-245 | 650-980 | nine.8-98 | 47.five-ninety seven.4 | sixteen-183 | eighteen.5-two hundred | 3630-3690 |
| ERF-250 | 650-980 | nine.8-ninety eight | 61.6-a hundred and twenty.4 | 19-227 | 22-250 | 4450-4500 |
| ERF-290 | 650-980 | nine.8-78.4 | ninety two.three-128 | 22-213 | thirty-250 | 4890-4710 |
| ERF-295 | 650-980 | 9.eight-78.4 | ninety seven.3-152.five | 23-227 | thirty-250 | 4890-4880 |
| ERF-297 | 650-980 | nine.eight-78.four | 87.5-167.6 | 26-249 | 30-280 | 5330-5520 |
| ERF-three hundred | 650-980 | nine.8-78.four | one zero one.five-188.7 | 29-278 | 37-315 | 5330-5520 |
| ERF-350 | 650-980 | nine.8-seventy eight.four | 126-224.9 | 34-249 | 45-280 | 5210-6470 |
| ERG-300 | 590-730 | nine.8-ninety eight | 128.3-196 | 38-362 | 45-400 | 9440-15710 |
| ERG-350 | 590-730 | 9.8-ninety eight | 159.3-231.six | forty three-420 | fifty five-450 | 9700-1571 |
| ERG-400 | 590-730 | 9.8-eighty three.3 | 203.one-290.nine | 52-449 | seventy five-five hundred | 10090-11390 |
| ERG-445 | 590-730 | nine.eight-seventy three.five | 229.seven-327.eight | 58-477 | 75-560 | 10600-12230 |
| ERG-450 | 590-730 | 9.8-73.five | 262.four-366.2 | 64-496 | seventy five-560 | 10600-12230 |
| ERG-500 | 590-730 | 9.8-63.seven | 327.4-452.four | seventy eight-529 | 90-560 | 12790-14620 |
| ERF-240-V | 650-980 | -9.eight- -forty nine | 38.1-78 | 13-seventy six | 18.5-90 | 3420-3285 |
| ERF-245-V | 650-980 | -9.eight- -49 | forty seven.five-97.four | 16-ninety five | 22-one hundred ten | 3425-3360 |
| ERF-250-V | 650-980 | -9.eight- -forty nine | 63-one hundred twenty | 19-117 | 22-132 | 3910-3830 |
| ERF-290-V | 650-980 | -nine.8- -49 | 72.6-144 | 22-136 | thirty-160 | 4415-4270 |
| ERF-295-V | 650-980 | -9.eight- -forty nine | seventy six.six-152 | 23-145 | thirty-a hundred and sixty | 4425-4485 |
| ERF-297-V | 650-980 | -nine.8- -49 | 84.3-166.8 | 26-160 | 30-a hundred and eighty | 5000-4980 |
| ERF-three hundred-V | 650-980 | -nine.8- -forty nine | 97-192 | 29-178 | 37-200 | 5000-4980 |
| ERF-350-V | 650-980 | -nine.8- -49 | 116-225 | 34-209 | forty five-250 | 5400-5700 |
| ERG-300V | 590-730 | -9.8- -forty nine | 133-193 | 38-184 | forty five-220 | 7800-9100 |
| ERG-350V | 590-730 | -9.eight- -forty nine | 163-231 | forty three-216 | fifty five-250 | 9500-9470 |
| ERG-400V | 590-730 | -9.eight- -49 | 199-290 | 52-269 | 75-315 | 9900-10130 |
| ERG-445V | 590-730 | -nine.eight- -49 | 224.eight-326.nine | 58-303 | seventy five-355 | 9900-10130 |
| ERG-450V | 590-730 | -9.8- -forty nine | 255-365 | sixty four-335 | seventy five-400 | 11230-11300 |
| ERG-500V | 590-730 | -9.8- -forty nine | 314-452 | 78-412 | 132-450 | 13630-13850 |
| ERF-245W | 650-980 | -13.3- -53.3 | 53.5-a hundred and one | 21.five-102 | thirty-a hundred and ten | 3630-3360 |
| ERF-250W | 650-980 | -13.three- -53.three | 69-127 | 26.five-127 | thirty-one hundred sixty | 3985-4115 |
| ERF-290W | 650-980 | -13.three- -fifty three.3 | eighty two.six-150 | 30.5-149 | 37-185 | 4340-4580 |
| ERF-295W | 650-980 | -thirteen.three- -fifty three.3 | 87-158 | 32-158 | 37-185 | 4440-4580 |
| ERF-297W | 650-980 | -thirteen.three- -fifty three.three | ninety five-174 | 36-174 | 45-two hundred | 5230-5130 |
| ERF-300W | 650-980 | -13.three- -fifty three.3 | 109-195 | 40-193 | fifty five-220 | 5230-5130 |
| ERF-350W | 650-980 | -13.3- -fifty three.3 | 129-230 | 50-230 | 75-250 | 5840-5670 |
| ERG-300W | 590-730 | -thirteen.three- -fifty three.3 | 142-197 | 52-201 | seventy five-220 | 9100-9000 |
| ERF-350W | 590-730 | -thirteen.3- -53.3 | 168-234.4 | 59-235.five | seventy five-280 | 9500-9600 |
| ERG-400W | 590-730 | -thirteen.three- -fifty three.3 | 220-276.6 | seventy one-292 | 90-315 | 9900-10130 |
| ERG-445W | 590-730 | -13.3- -fifty three.3 | 244-294.6 | 82-331 | ninety-400 | 11230-11300 |
| ERG450W | 590-730 | -thirteen.3- -fifty three.three | 275-368.five | ninety one-366 | 110-four hundred | 11230-11300 |
| ETRF-250 (240,250) |
650-980 | ninety eight-196 | sixty four.8-112 | a hundred thirty five-355 | one hundred sixty-400 | 8700-8600 |
| ETRF-295 (245,295) |
650-980 | ninety eight-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 | 98-137.2 | 124-207 | 241-473 | 280-560 | 10700-11110 |
| ETRG-400 (three hundred,400) |
590-740 | 98-176.4 | 205-273 | 380-773 | 450-900 | 21350-24200 |
| ETRG-450 (350,450) |
590-740 | 98-176.4 | 263-428 | 476-955 | 560-a thousand | 24200-27600 |
| ETRF-250W (240,250) |
650-980 | -fifty three.three–eighty | seventy two-121 | seventy five.six-121 | ninety-one hundred sixty | 6100-6470 |
| ETRF-295W (245/295) |
650-980 | -fifty three.3–80 | ninety three.8-154 | 99.5-186 | one hundred ten-220 | 7000-6400 |
| ETRF-300W (2505/300) |
650-980 | -53.three–80 | 116-189 | 115-220 | 132-250 | 7750-7760 |
| EL81WD | 580-980 | nine.8-fifty eight.8 | 54.2-a hundred thirty | 18-151 | forty five-185 | 3595 |
| EL82WDB | 580-980 | nine.8-fifty eight.eight | seventy two.eight-161 | 22-191 | forty five-220 | 3860 |
| EL83WDA | 580-980 | 9.eight-fifty eight.9 | 101-213 | 28.five-202 | 45-220 | 4300 |
| EL84WDA | 580-980 | 9.eight-fifty eight.8 | 129-267 | 35.4-252 | 45-280 | 4720 |
| EL93WDA | 580-730 | 9.eight-49 | 230-329 | 56.four-311 | seventy five-355 | 7765 |
| EL94WDA | 580-730 | nine.eight-49 | 263-373 | 64-353 | 75-400 | 8130 |
| EL95WDA | 490-580 | nine.8-fifty eight.eight | 308-434 | eighty one.four-414 | ninety-450 | 11500 |
| EL96WDA | 580 | fifty eight.eight | 381 | 497 | 560 | 11500 |
| E397WN | one thousand-1650 | forty | five-9 | |||
| E408WN | 870-1650 | 40 | 10-22 | |||
| E517WN | 980-1580 | 40 | twenty-thirty | |||
| E520WN | 930-1550 | forty | 24-45 | |||
| E607WN | 750-1250 | 40 | forty five-76 | |||
| E610WN | 750-1250 | forty | seventy five-130 |
Spare elements and structure of our roots blower:
Bundle of our Roots Blower
Pack into iron case, two layer,blower entire body and motor in decrease layer, inlet/out silencer and many others in upper layer
Roots blower pack strategy exact same as iron scenario, just modify to Fumigation Free of charge Plywood Scenario
Our manufacturing unit is a expert producer 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
funds— HangZhou. Our organization also has hassle-free visitors transportation, as it is 15 kilometers absent from
Diaozhen City station of HangZhou-HangZhou expressway, and 30 kilometers absent from East HangZhou station of
ZheJiang -ZheJiang expressway.The foremost solution of our firm is ESR -sort Roots Blower. The roots
vacuum pump is a new variety of large-effectiveness roots blower, which is designed independently primarily based on the
domestic and international sophisticated systems. Numerous patented technologies have been adopted on Roots
Blower, and hence we have made important effects in vitality conservation and noise reduction, and many others.. So significantly, our
company has invested more than 30,000,000 RMB to introduce these kinds of superior specialist equipment as
horizontal machining center, vertical machining heart, two-way CNC area planer, CNC lathe, CNC milling
machine, CNC planer, airplane grinder, cylindrical grinding machine, and three coordinates testing device.
In addition to, we have taken various steps to standardize the approach circulation this kind of as operating and cooperating
with several scientific research units, colleges and universities at property and abroad. We also repeatedly attempt to
take in and increase the domestic superior production systems, so as to encourage the upgrading and
optimization of the product and make the item good quality reach the sophisticated amount at house and abroad.
ESR -variety Roots Blower contains several collection this kind of as Three-leaves Kind, Two-leaves Sort and Centrifugal
Kind,which can be further divided to hundreds of varieties. The goods are widely employed in sewage therapy,
pneumatic conveying,vacuum packaging, aquaculture, foodstuff processing, EPT electrical power, petrochemical, cement,
mining and other industries. Our products have such rewards as minimal sound, strength conserving, steady top quality,
and long services daily life, and so on.. With the sales outlets throughout the domestic money metropolitan areas, our goods offer effectively all
more than the region, and have been exported to North America,Russia, Malaysia, Indonesia, Vietnam, South Africa
and some other international locations. Possessing acquired the ISO9001 Global High quality Program Certification, we have
set up and enhanced the good quality assurance of the merchandise designing, production, and installation.
From the method of style, research and improvement to the concluded products, we have acquired the whole
approach managed independently, as a result providing the entire foundation and trustworthiness ensure for the products balance
and toughness. Getting a perfect product sales network and following-product sales service, we provide our consumers with greater-
top quality and a lot more productive services.All personnel of our company sincerely welcome the wide masses of pals to
guide, and negotiate organization with us.
Our Roots Blower Workshop
Doosn Horzitonal Equipment Heart
The Software of the Roots Blower
Maintenance and inspection
(one) Check all fasteners and finding pins circumstances whether they are loosening.
(two) Usually verify no matter whether the leakage phenomenon of the human body.
(3) Shell out interest to lubrication, quantity of grease and noises when working,
figure out whether or not it works beneath the necessary problems.
(4) Lubricant & grease: The lubricant is for medium load industrial equipment oil
(grade 220, kinematic viscosity of 198 ~ 242mm2 / s 40ºC, flash level ≥ 200ºC)
The grease is butter (synthetic lithium grease penetration 220-250, fall level ≥
190ºC). Change the lubricant and grease after very first two hundred hrs operating, and change
once again soon after a moth running. Afterwards, exchange the lubricant and grease in accordance to the
setting and lubricant (grease) quality suggest a suited EPT for three
months.
(five) Constantly check out the inlet air filter, clean or replace the filter in time.
(6) Blower overload occasionally not immediately displayed, so shell out attention to
the consumption and exhaust force, bearing temperature and the recent increase traits
of motor to figure out whether or not the blower functions normally
(seven) Ahead of disassembling the blower, the assembling relation and dimensions
must be recorded or measured, make marks on parts to make sure the authentic
specifications after assembling.
(eight) When recently device or overhaul, the oil tank should be cleaned prior to use
and propose replace all grease after eight hours working.
Frequent failure cause and troubleshooting
| No | Failure | Feasible causes | Elimination methods |
| one | Friction in between the impeller |
(one) Impurities on the impeller, resulting in the gap is too small (2) Gear put on, resulting in a massive backlash (3) The equipment is not nicely fastened, can not keep the impeller synchronization (4) Bearing dress in resulting in clearance increasing. |
(1) Get rid of dust and verify whether there is hurt elements (2) Change the gear hole, replace the gears if the gear backlash is better than the average 30% to fifty% (three)Re-assemble the gears, maintain the taper get in touch with region is to 75% (4)Substitute the bearing |
| 2 | Collision amongst impeller and wall, the impeller leading and casing |
(one) Installation hole is not correct (2) functioning pressure is way too large, exceeding the specified worth (3) Functioning temperature is too substantial (four) Casing or base deformation, positioning admirer failure (five) Bearing axial place is not great |
(1) Alter the hole (2) Recognize brings about of overloading, reduced the pressure to the specified benefit (3) Check out the installation precision and lessen the pipe stress (4) Check and mend bearings, and to make certain the clearance (5)Relocation |
| three | Temperature way too substantial |
(1) Oil in tank is as well significantly, as well thick or also soiled (2) Filter or silencer is blocked (3)The strain is increased than the specified worth (4)Excessive wear of the impeller, huge gap (5)Inadequate air flow, indoor temperature is high, resulting in inlet air’s higher temperature (six) The rotating velocity is way too low,consequence in the belt slipping. |
(one)Decrease the oil degree or rely on oil (two)Get rid of of blocking objects (3)Minimizing the force by means of the blower (4)Repair its clearance (five)Open vents to reduce space temperature (six) Enhance speed to avert the belt slipping. |
| four | Insufficient flow |
(one) The inlet filter is blocked (2) Impeller use and the hole raises also significantly (3) Belt slipping (4) Huge imports strain decline (5) Pipeline air flow leakage |
(1) Clean the filter dust and obstruction (two) Fix the gap (3)Tighten the belt and improve the number of belts (four)Adjust the inlet force to the specified benefit (5) Check and mend the pipeline |
| 5 | Oil leaking or oil leaking into the enclosure |
(one)Higher tank place result in leakage from the discharge port (two) Seal put on, resulting in shaft oil spills (3) The pressure is larger than the specified price |
(1)Minimize the oil stage (two)Exchange the seals (3)Distinct the air vents, 2mm diameter faucet is set in the center chamber, open the faucet below the wall |
| 6 | Irregular vibration and sound |
(one)Bearing clearance exceeds the specified worth or bearing use (two) The gear backlash is as well large, not in a limited fastened (3) The international objects and dust brought on 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 among the impeller and the inlet housing brought on by overheating (six) Unbalance of the impeller brought on by fouling or overseas entire body (seven) Anchor bolts or other fasteners are loosened |
(one)Substitute bearings or bearing seat (two)Reassemble equipment and make sure backlash (3)Cleaning blower, check out the case is broken (4)Verify the back stress, check the wheel and change gap (five)Check out the filter and back again force, increase the hole between the impeller inlet and the casing (6)Cleanse the impeller and the casing, to make sure that the impeller clearance work (7) Tighten the anchor bolts and leveling the foundation. |
| seven | Motor overload |
(1)When compared with the necessary force, the pressure variation is huge that the back again stress or the inlet force is higher (two) Compared with the products requirements, blower stream is way too huge, so its pressure raises (three)Inlet filter is blocked, or outlet pipe is obstructed or blocked (four) Collusion or friction (caught) rotating parts (5) The oil stage is also higher (six) Narrow V-belt is overheat, vibration is as well huge, or pulley is also little |
(one) Lessen the strain to the specified benefit (two) Exhaust the surplus fuel into the atmosphere or decrease the blower pace (three) Take away the obstructions (four)Immediately shut down, check out the explanation (five) Alter the oil to the right degree (6) Check the belt rigidity, and changed it with large diameter pulley. |
Our Provider
one. Pre offer service two. Following market service
a. advocate the appropriate model c. online complex assist,
b. factory tour d. entire daily life spare components and techinical assistance
Gurantee
12 months gurantee for our roots blowers
/ The use of original tools manufacturer’s (OEM) element numbers or logos , e.g. CASE® and John Deere® are for reference needs only and for indicating merchandise use and compatibility. Our business and the outlined EPT elements contained herein are not sponsored, authorized, or created by the OEM. /
