We - EPG Group the greatest couplings and gears manufacturing unit in China with 5 different branches. For a lot more specifics: Mobile/whatsapp/telegram/Kakao us at: 0086-13083988828 /
We make all sorts of roots blower, centrifugal blower, Our Main items are as below:
| Kind | Diameter | Price of flow | Pressure |
| ESR-MJ(Intense Type) | Φ50~Φ300mm | .5~140m³/min | nine.8KPa~ninety eight.8Kpa |
| ESR(Regular Type) | Φ50~Φ350mm | .5~140m³/min | 9.8KPa~seventy eight.4Kpa |
| ESR-H(Higher-strain Kind) | Φ50~Φ350mm | .seven~160m³/min | 58.8KPa~98.8Kpa |
| ESR-V(Vacuum Pump) | Φ50~Φ350mm | .5~160m³/min | nine.8KPa~fifty three.3Kpa |
| EL Series | Φ200~Φ600mm | 20.3~750m³/min | nine.8KPa~fifty eight.8Kpa |
| Multistage Centrifugal Blower or C-Sequence |
Φ250~Φ500mm | 50~500m³/min | nine.8KPa~98Kpa |
| ERR-ERG Variety | Φ250~Φ500mm | 120~420m³/min | 9.8KPa~98.8Kpa |
The working basic principle of the three-blade roots blower: two a few-lobed rotors are organized 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 gas in the chamber is pushed to obtain the
function of blowing.
Function of our roots blower:
1. Massive adjustment of the air quantity
2. Lower Sound
three. Higher efficiency
four. Low vitality cosumption
5. Extended time lifestyle
6. Reputable managing, easy upkeep,little footprint
The parameters of our roots blower:
| Kind | Ratary Pace (r/min) |
Strain Rise (Kpa) |
Ability (m/min) |
Shaft Electrical power (Kw) |
Motor | Unit Maximn Excess weight(Kg) |
| Energy (Kw) |
||||||
| ESR-fifty | 1100-2120 | 9.8-fifty eight.eight | .sixty five-2.fifty eight | .three-three.54 | .seventy five-four | 128-158 |
| ESR-sixty five | 1100-2130 | 9.8-58.eight | .94-3.sixty six | .38-four.forty six | .seventy five-five.five | 155-185 |
| ESR-80 | 1140-1900 | 9.8-fifty eight.eight | two.34-five.forty three | one.04-7.42 | 2.2-eleven | one hundred fifty five-277 |
| ESR-100 | 1060-1980 | nine.eight-fifty eight.eight | four.57-9.05 | 1.35-twelve.15 | 3-15 | 309-377 |
| ESR-125 | 980-1850 | nine.eight-fifty eight.eight | 5.35-12.four | one.65-five.19 | 5.5-18.5 | 408-451 |
| ESR-125C | 970-1830 | nine.eight-58.eight | seven.5-17.fifty seven | 3.2-18.five | 4-22 | 408-451 |
| ESR-150 | 810-1730 | 9.eight-58.eight | ten.37-27.15 | three.eighty four-40.eighty two | 7.5-forty five | 688-848 |
| ESR-a hundred seventy five | 970-1520 | nine.8-58.8 | 19.65-36.65 | 7.two-forty five.ninety five | 11-fifty five | 980-1080 |
| ESR-200B | 740-1450 | 9.eight-fifty eight.eight | 19.65-44.8 | 10.15-sixty.44 | fifteen-75 | 1272-1546 |
| ESR-200 | 810-1480 | nine.8-58.8 | 27.sixty five-fifty nine.two | 8.05-eighty,12 | 15-90 | 1272-1546 |
| ESR-250B | 1100-1480 | nine.eight-fifty eight.eight | 54.77-77.fifty five | 19.ninety seven-ninety.97 | 30-one hundred ten | 1490-2454 |
| ESR-250 | 990-1480 | 9.8-58.eight | 61.four-ninety seven.52 | 20.1-117.3 | thirty-132 | 1490-2454 |
| ESR-300 | 990-1480 | 9.eight-58.eight | 87.1-138.1 | 26.four-167.8 | 37-185 | 3326-3446 |
| ESR-350 | 730-1480 | 9.eight-fifty eight.8 | seventy eight.forty one-177.31 | fifty five-250 | ||
| ESR-50H | 1230-2120 | 63.7-98 | .45-two.02 | 2.05-six.twelve | three-seven.5 | a hundred and sixty--170 |
| ESR-65H | 1240-2130 | 63.7-ninety eight | .seventy eight-2.53 | two.89-7.fifty five | four-eleven | 198-230 |
| ESR-80H | 1140-1900 | sixty three.seven-98 | 1.82-four.fifty five | four.09-ten.one | five.five-fifteen | 316-326 |
| ESR-100H | 1060-1980 | sixty three.seven-98 | 2.65-eight.06 | 6.36-seventeen.two | 7.5-22 | 398-459 |
| ESR-125H | 980-1850 | 63.seven-ninety eight | four.64-eleven.23 | eight.92-24.2 | eleven-thirty | 544-630 |
| ESR-150H | 810-1730 | sixty three.seven-98 | 9.53-25.seventy six | seventeen.16-65 | eighteen.5-seventy five | 752-1571 |
| ESR-200H | 810-1480 | 63.7-98 | 25.34-fifty six.ninety two | 42.34-120 | fifty five-132 | 1426-1934 |
| ESR-250H | 990-1480 | sixty three.7-98 | 58-93.7 | 83.2-205 | 90-220 | 2980-3468 |
| ESR300H | 990-1480 | sixty three.seven-98 | 86.9-134.one | 114.seven-270 | 132-280 | 3476-3998 |
| ERF-245 | 650-980 | nine.8-98 | forty seven.5-ninety seven.4 | sixteen-183 | eighteen.five-two hundred | 3630-3690 |
| ERF-250 | 650-980 | 9.eight-98 | 61.6-one hundred twenty.4 | 19-227 | 22-250 | 4450-4500 |
| ERF-290 | 650-980 | 9.eight-seventy eight.4 | ninety two.3-128 | 22-213 | thirty-250 | 4890-4710 |
| ERF-295 | 650-980 | nine.eight-78.four | ninety seven.three-152.five | 23-227 | 30-250 | 4890-4880 |
| ERF-297 | 650-980 | 9.8-seventy eight.four | 87.5-167.6 | 26-249 | 30-280 | 5330-5520 |
| ERF-three hundred | 650-980 | nine.8-78.4 | one hundred and one.5-188.seven | 29-278 | 37-315 | 5330-5520 |
| ERF-350 | 650-980 | 9.eight-78.four | 126-224.nine | 34-249 | forty five-280 | 5210-6470 |
| ERG-three hundred | 590-730 | 9.eight-98 | 128.3-196 | 38-362 | 45-four hundred | 9440-15710 |
| ERG-350 | 590-730 | nine.8-98 | 159.three-231.6 | forty three-420 | 55-450 | 9700-1571 |
| ERG-four hundred | 590-730 | nine.eight-83.three | 203.one-290.9 | fifty two-449 | seventy five-five hundred | 10090-11390 |
| ERG-445 | 590-730 | nine.8-seventy three.five | 229.seven-327.eight | fifty eight-477 | seventy five-560 | 10600-12230 |
| ERG-450 | 590-730 | nine.eight-73.5 | 262.four-366.two | sixty four-496 | seventy five-560 | 10600-12230 |
| ERG-500 | 590-730 | 9.eight-sixty three.seven | 327.four-452.four | seventy eight-529 | 90-560 | 12790-14620 |
| ERF-240-V | 650-980 | -nine.8- -49 | 38.1-78 | 13-seventy six | 18.5-ninety | 3420-3285 |
| ERF-245-V | 650-980 | -nine.eight- -49 | 47.5-97.four | 16-ninety five | 22-a hundred and 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 | -9.8- -49 | seventy two.6-one hundred forty four | 22-136 | thirty-one hundred sixty | 4415-4270 |
| ERF-295-V | 650-980 | -nine.8- -49 | 76.six-152 | 23-145 | 30-one hundred sixty | 4425-4485 |
| ERF-297-V | 650-980 | -9.8- -49 | 84.three-166.8 | 26-one hundred sixty | thirty-180 | 5000-4980 |
| ERF-three hundred-V | 650-980 | -9.eight- -49 | ninety seven-192 | 29-178 | 37-two hundred | 5000-4980 |
| ERF-350-V | 650-980 | -nine.8- -forty nine | 116-225 | 34-209 | 45-250 | 5400-5700 |
| ERG-300V | 590-730 | -nine.eight- -49 | 133-193 | 38-184 | forty five-220 | 7800-9100 |
| ERG-350V | 590-730 | -9.eight- -49 | 163-231 | 43-216 | 55-250 | 9500-9470 |
| ERG-400V | 590-730 | -9.8- -49 | 199-290 | 52-269 | 75-315 | 9900-10130 |
| ERG-445V | 590-730 | -9.eight- -forty nine | 224.eight-326.nine | fifty eight-303 | 75-355 | 9900-10130 |
| ERG-450V | 590-730 | -9.8- -49 | 255-365 | 64-335 | 75-400 | 11230-11300 |
| ERG-500V | 590-730 | -nine.8- -49 | 314-452 | 78-412 | 132-450 | 13630-13850 |
| ERF-245W | 650-980 | -thirteen.3- -53.three | 53.5-one zero one | 21.5-102 | 30-a hundred and ten | 3630-3360 |
| ERF-250W | 650-980 | -13.3- -fifty three.3 | sixty nine-127 | 26.5-127 | thirty-160 | 3985-4115 |
| ERF-290W | 650-980 | -13.three- -53.3 | eighty two.six-a hundred and fifty | 30.five-149 | 37-185 | 4340-4580 |
| ERF-295W | 650-980 | -thirteen.three- -fifty three.three | 87-158 | 32-158 | 37-185 | 4440-4580 |
| ERF-297W | 650-980 | -thirteen.three- -fifty three.3 | 95-174 | 36-174 | forty five-200 | 5230-5130 |
| ERF-300W | 650-980 | -thirteen.3- -fifty three.3 | 109-195 | forty-193 | fifty five-220 | 5230-5130 |
| ERF-350W | 650-980 | -13.3- -53.3 | 129-230 | fifty-230 | seventy five-250 | 5840-5670 |
| ERG-300W | 590-730 | -thirteen.3- -53.3 | 142-197 | fifty two-201 | 75-220 | 9100-9000 |
| ERF-350W | 590-730 | -13.3- -fifty three.three | 168-234.4 | fifty nine-235.five | 75-280 | 9500-9600 |
| ERG-400W | 590-730 | -13.three- -53.three | 220-276.six | 71-292 | 90-315 | 9900-10130 |
| ERG-445W | 590-730 | -thirteen.three- -53.three | 244-294.6 | eighty two-331 | 90-four hundred | 11230-11300 |
| ERG450W | 590-730 | -thirteen.three- -53.three | 275-368.5 | 91-366 | one hundred ten-four hundred | 11230-11300 |
| ETRF-250 (240,250) |
650-980 | 98-196 | 64.eight-112 | a hundred thirty five-355 | one hundred sixty-400 | 8700-8600 |
| ETRF-295 (245,295) |
650-980 | ninety eight-196 | eighty.eight-139 | 167-439 | 185-500 | 9200-9100 |
| ETRF-three hundred (245,295) |
650-980 | 98-176.4 | 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,four hundred) |
590-740 | 98-176.four | 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 | -fifty three.three--80 | 72-121 | seventy five.six-121 | 90-a hundred and sixty | 6100-6470 |
| ETRF-295W (245/295) |
650-980 | -fifty three.three--eighty | 93.8-154 | 99.5-186 | 110-220 | 7000-6400 |
| ETRF-300W (2505/300) |
650-980 | -fifty three.3--80 | 116-189 | 115-220 | 132-250 | 7750-7760 |
| EL81WD | 580-980 | 9.8-fifty eight.8 | 54.two-one hundred thirty | eighteen-151 | 45-185 | 3595 |
| EL82WDB | 580-980 | nine.eight-fifty eight.eight | 72.eight-161 | 22-191 | 45-220 | 3860 |
| EL83WDA | 580-980 | nine.eight-58.9 | 101-213 | 28.five-202 | 45-220 | 4300 |
| EL84WDA | 580-980 | 9.8-fifty eight.8 | 129-267 | 35.4-252 | forty five-280 | 4720 |
| EL93WDA | 580-730 | 9.8-forty nine | 230-329 | 56.4-311 | 75-355 | 7765 |
| EL94WDA | 580-730 | 9.8-forty nine | 263-373 | sixty four-353 | 75-four hundred | 8130 |
| EL95WDA | 490-580 | nine.8-58.eight | 308-434 | eighty one.4-414 | 90-450 | 11500 |
| EL96WDA | 580 | 58.eight | 381 | 497 | 560 | 11500 |
| E397WN | 1000-1650 | forty | 5-nine | |||
| E408WN | 870-1650 | forty | 10-22 | |||
| E517WN | 980-1580 | 40 | twenty-30 | |||
| E520WN | 930-1550 | forty | 24-45 | |||
| E607WN | 750-1250 | forty | forty five-seventy six | |||
| E610WN | 750-1250 | 40 | seventy five-a hundred thirty |
Spare areas and framework of our roots blower:
Package deal of our Roots Blower
Pack into iron scenario, two layer,blower human body and motor in reduce layer, inlet/out silencer and many others in higher layer
Roots blower pack approach very same as iron situation, just change to Fumigation Totally free Plywood Case
Our manufacturing facility is a skilled manufacturer of Roots blowers which has above 20 years' experience in equipment
producing. It is positioned in Xihu (West Lake) Dis. East Industrial Park, 50 kilometers to the east of Shan EPT provincial
funds--- HangZhou. Our company also has hassle-free visitors transportation, as it is 15 kilometers absent from
Diaozhen Town station of HangZhou-HangZhou expressway, and 30 kilometers absent from East HangZhou station of
ZheJiang -ZheJiang expressway.The top item of our organization is ESR -kind Roots Blower. The roots
vacuum pump is a new variety of higher-performance roots blower, which is designed independently based mostly on the
domestic and overseas innovative technologies. Many patented technologies have been adopted on Roots
Blower, and therefore we have made substantial effects in strength conservation and noise reduction, and many others.. So considerably, our
business has invested a lot more than thirty,000,000 RMB to introduce these kinds of advanced expert gear as
horizontal machining heart, vertical machining middle, two-way CNC surface planer, CNC lathe, CNC milling
equipment, CNC planer, airplane grinder, cylindrical grinding equipment, and a few coordinates screening equipment.
In addition to, we have taken different measures to standardize the process circulation such as working and cooperating
with several scientific research units, colleges and universities at property and abroad. We also constantly attempt to
take up and improve the domestic sophisticated production technologies, so as to advertise the upgrading and
optimization of the solution and make the product good quality get to the sophisticated stage at property and overseas.
ESR -kind Roots Blower includes a number of collection this kind of as 3-leaves Sort, Two-leaves Sort and Centrifugal
Type,which can be even more divided to hundreds of kinds. The items are extensively utilised in sewage remedy,
pneumatic conveying,vacuum packaging, aquaculture, foods processing, EPT electrical power, petrochemical, cement,
mining and other industries. Our products have this kind of advantages as reduced sounds, energy preserving, secure high quality,
and lengthy provider life, etc.. With the revenue outlets throughout the domestic cash metropolitan areas, our items promote well all
above the nation, and have been exported to North The us,Russia, Malaysia, Indonesia, Vietnam, South Africa
and some other nations around the world. Possessing got the ISO9001 Intercontinental Top quality Program Certification, we have
proven and enhanced the top quality assurance of the products designing, manufacturing, and installation.
From the approach of layout, investigation and improvement to the completed products, we have got the entire
process managed independently, as a result supplying the total basis and trustworthiness assure for the merchandise balance
and longevity. Possessing a perfect revenue community and after-product sales service, we supply our buyers with larger-
high quality and much more effective service.All workers of our business sincerely welcome the wide masses of close friends to
manual, and negotiate company with us.
Our Roots Blower Workshop
Doosn Horzitonal Equipment Middle
The Software of the Roots Blower
Servicing and inspection
(one) Check out all fasteners and locating pins problems no matter whether they are loosening.
(two) Usually examine whether or not the leakage phenomenon of the entire body.
(three) Pay out focus to lubrication, quantity of grease and noises when running,
determine regardless of whether it works underneath the essential conditions.
(four) Lubricant & grease: The lubricant is for medium load industrial gear oil
(quality 220, kinematic viscosity of 198 ~ 242mm2 / s 40ºC, flash stage ≥ 200ºC)
The grease is butter (synthetic lithium grease penetration 220-250, fall point ≥
190ºC). Replace the lubricant and grease following initial 200 hrs managing, and substitute
again following a moth running. Later, replace the lubricant and grease in accordance to the
environment and lubricant (grease) quality suggest a ideal EPT for three
months.
(five) Always check the inlet air filter, thoroughly clean or exchange the filter in time.
(6) Blower overload occasionally not quickly displayed, so pay out interest to
the ingestion and exhaust strain, bearing temperature and the existing increase trends
of motor to decide no matter whether the blower performs generally
(seven) Ahead of disassembling the blower, the assembling relation and dimensions
have to be recorded or measured, make marks on factors to guarantee the original
requirements soon after assembling.
(eight) When newly equipment or overhaul, the oil tank ought to be cleaned ahead of use
and propose exchange all grease right after 8 several hours managing.
Frequent failure explanation and troubleshooting
| No | Failure | Achievable motives | Elimination approaches |
| 1 | Friction in between the impeller |
(1) Impurities on the impeller, resulting in the hole is too modest (two) Gear dress in, resulting in a massive backlash (three) The gear is not well fixed, can not sustain the impeller synchronization (4) Bearing dress in resulting in clearance increasing. |
(1) Remove dirt and verify regardless of whether there is damage areas (2) Alter the gear gap, exchange the gears if the equipment backlash is increased than the common 30% to 50% (3)Re-assemble the gears, maintain the taper speak to location is to 75% (four)Exchange the bearing |
| two | Collision among impeller and wall, the impeller prime and casing |
(1) Installation hole is not proper (two) operating force is way too large, exceeding the specified price (three) Operating temperature is too substantial (4) Casing or base deformation, positioning enthusiast failure (five) Bearing axial spot is not great |
(one) Modify the hole (two) Identify causes of overloading, lowered the force to the specified worth (three) Verify the installation precision and decrease the pipe stress (4) Verify and fix bearings, and to guarantee the clearance (5)Relocation |
| 3 | Temperature too substantial |
(1) Oil in tank is also significantly, also thick or too dirty (2) Filter or silencer is blocked (3)The force is higher than the specified worth (4)Abnormal wear of the impeller, massive hole (five)Inadequate air flow, indoor temperature is large, ensuing in inlet air's higher temperature (six) The rotating pace is way too minimal,consequence in the belt slipping. |
(one)Minimize the oil amount or count on oil (two)Take away of blocking objects (three)Decreasing the stress via the blower (four)Mend its clearance (five)Open vents to lessen place temperature (six) Boost pace to prevent the belt slipping. |
| 4 | Inadequate circulation |
(1) The inlet filter is blocked (two) Impeller wear and the gap will increase too much (three) Belt slipping (four) Large imports force loss (5) Pipeline ventilation leakage |
(1) Clear the filter dust and obstruction (2) Restore the gap (three)Tighten the belt and increase the amount of belts (4)Adjust the inlet strain to the specified price (5) Check out and restore the pipeline |
| five | Oil leaking or oil leaking into the enclosure |
(one)Substantial tank situation lead to leakage from the discharge port (2) Seal put on, resulting in shaft oil spills (three) The pressure is higher than the specified price |
(one)Reduce the oil amount (2)Replace the seals (three)Very clear the air vents, 2mm diameter faucet is fastened in the middle chamber, open up the faucet beneath the wall |
| six | Abnormal vibration and sound |
(1)Bearing clearance exceeds the specified price or bearing wear (2) The gear backlash is way too massive, not in a limited mounted (three) The international objects and dust caused 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 in between the impeller and the inlet housing caused by overheating (six) Unbalance of the impeller caused by fouling or international body (seven) Anchor bolts or other fasteners are loosened |
(one)Change bearings or bearing seat (two)Reassemble gear and make sure backlash (3)Cleansing blower, check out the situation is damaged (four)Verify the back again force, check the wheel and modify gap (five)Check out the filter and again strain, enhance the hole between the impeller inlet and the casing (6)Thoroughly clean the impeller and the casing, to make certain that the impeller clearance work (7) Tighten the anchor bolts and leveling the base. |
| 7 | Motor overload |
(1)In contrast with the essential strain, the strain difference is large that the back strain or the inlet stress is large (2) When compared with the gear needs, blower circulation is also large, so its stress raises (three)Inlet filter is blocked, or outlet pipe is obstructed or blocked (4) Collusion or friction (trapped) rotating components (5) The oil degree is as well substantial (6) Narrow V-belt is overheat, vibration is also large, or pulley is way too little |
(one) Lessen the strain to the specified worth (2) Exhaust the excessive gasoline into the ambiance or reduce the blower speed (3) Get rid of the obstructions (four)Immediately shut down, check the explanation (five) Adjust the oil to the correct amount (6) Examine the belt stress, and replaced it with massive diameter pulley. |
Our Provider
one. Pre promote service two. Soon after offer service
a. suggest the appropriate model c. on the internet technological assistance,
b. manufacturing unit tour d. complete daily life spare parts and techinical support
Gurantee
twelve months gurantee for our roots blowers
/ The use of authentic gear manufacturer’s (OEM) element figures or emblems , e.g. CASE® and John Deere® are for reference functions only and for indicating product use and compatibility. Our business and the detailed EPT areas contained herein are not sponsored, accepted, or created by the OEM. /
