We – EPG Team the largest couplings and gears manufacturing facility in China with five distinct branches. For far more particulars: Mobile/whatsapp/telegram/Kakao us at: 0086-13083988828 /
We make all sorts of roots blower, centrifugal blower, Our Main items are as under:
| Variety | Diameter | Fee of stream | Force |
| ESR-MJ(Intense Kind) | Φ50~Φ300mm | .five~140m³/min | 9.8KPa~ninety eight.8Kpa |
| ESR(Normal Sort) | Φ50~Φ350mm | .five~140m³/min | 9.8KPa~78.4Kpa |
| ESR-H(Higher-force Variety) | Φ50~Φ350mm | .seven~160m³/min | 58.8KPa~ninety eight.8Kpa |
| ESR-V(Vacuum Pump) | Φ50~Φ350mm | .5~160m³/min | nine.8KPa~fifty three.3Kpa |
| EL Series | Φ200~Φ600mm | 20.3~750m³/min | 9.8KPa~58.8Kpa |
| Multistage Centrifugal Blower or C-Sequence |
Φ250~Φ500mm | 50~500m³/min | nine.8KPa~98Kpa |
| ERR-ERG Sort | Φ250~Φ500mm | one hundred twenty~420m³/min | nine.8KPa~ninety eight.8Kpa |
The doing work theory of the 3-blade roots blower: two 3-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 way of the motion of a pair of
synchronous gears, the two rotors rotate in reverse instructions 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 accomplish the
purpose of blowing.
Function of our roots blower:
1. Huge adjustment of the air quantity
two. Reduced Sounds
three. Substantial effectiveness
four. Reduced power cosumption
five. Prolonged time life
6. Reliable managing, easy upkeep,little footprint
The parameters of our roots blower:
| Variety | Ratary Speed (r/min) |
Pressure Increase (Kpa) |
Capability (m/min) |
Shaft Electricity (Kw) |
Motor | Device Maximn Bodyweight(Kg) |
| Electricity (Kw) |
||||||
| ESR-50 | 1100-2120 | nine.8-58.eight | .65-two.58 | .3-3.54 | .seventy five-4 | 128-158 |
| ESR-sixty five | 1100-2130 | nine.8-58.eight | .94-3.sixty six | .38-4.forty six | .75-5.five | 155-185 |
| ESR-80 | 1140-1900 | nine.8-58.8 | 2.34-five.forty three | one.04-7.42 | two.two-11 | 155-277 |
| ESR-one hundred | 1060-1980 | nine.eight-fifty eight.eight | 4.fifty seven-nine.05 | one.35-twelve.15 | three-fifteen | 309-377 |
| ESR-125 | 980-1850 | nine.8-58.eight | five.35-12.four | 1.sixty five-5.19 | 5.5-eighteen.5 | 408-451 |
| ESR-125C | 970-1830 | 9.eight-58.8 | seven.5-17.fifty seven | three.two-eighteen.5 | four-22 | 408-451 |
| ESR-a hundred and fifty | 810-1730 | nine.eight-fifty eight.eight | 10.37-27.15 | three.84-forty.eighty two | 7.five-45 | 688-848 |
| ESR-a hundred seventy five | 970-1520 | nine.8-58.8 | 19.sixty five-36.sixty five | seven.two-forty five.ninety five | eleven-fifty five | 980-1080 |
| ESR-200B | 740-1450 | 9.eight-fifty eight.8 | 19.65-forty four.eight | 10.15-60.44 | fifteen-75 | 1272-1546 |
| ESR-two hundred | 810-1480 | nine.eight-58.8 | 27.65-fifty nine.two | eight.05-80,twelve | fifteen-ninety | 1272-1546 |
| ESR-250B | 1100-1480 | nine.eight-fifty eight.eight | 54.77-77.fifty five | 19.97-90.ninety seven | thirty-one hundred ten | 1490-2454 |
| ESR-250 | 990-1480 | nine.eight-fifty eight.8 | 61.4-ninety seven.fifty two | twenty.one-117.3 | thirty-132 | 1490-2454 |
| ESR-three hundred | 990-1480 | 9.8-58.eight | 87.one-138.1 | 26.four-167.8 | 37-185 | 3326-3446 |
| ESR-350 | 730-1480 | nine.8-fifty eight.8 | seventy eight.forty one-177.31 | 55-250 | ||
| ESR-50H | 1230-2120 | sixty three.7-98 | .forty five-two.02 | two.05-6.twelve | 3-7.5 | a hundred and sixty–170 |
| ESR-65H | 1240-2130 | sixty three.seven-ninety eight | .seventy eight-2.53 | two.89-7.fifty five | 4-11 | 198-230 |
| ESR-80H | 1140-1900 | 63.7-ninety eight | 1.82-four.fifty five | 4.09-ten.1 | five.five-fifteen | 316-326 |
| ESR-100H | 1060-1980 | sixty three.7-98 | two.65-8.06 | 6.36-seventeen.2 | seven.5-22 | 398-459 |
| ESR-125H | 980-1850 | sixty three.seven-ninety eight | 4.64-eleven.23 | 8.ninety two-24.two | eleven-30 | 544-630 |
| ESR-150H | 810-1730 | sixty three.7-98 | 9.fifty three-25.seventy six | seventeen.sixteen-sixty five | 18.5-seventy five | 752-1571 |
| ESR-200H | 810-1480 | sixty three.7-ninety eight | twenty five.34-56.ninety two | 42.34-120 | fifty five-132 | 1426-1934 |
| ESR-250H | 990-1480 | sixty three.seven-98 | fifty eight-93.7 | eighty three.two-205 | ninety-220 | 2980-3468 |
| ESR300H | 990-1480 | 63.seven-ninety eight | 86.nine-134.1 | 114.seven-270 | 132-280 | 3476-3998 |
| ERF-245 | 650-980 | 9.eight-98 | 47.5-97.four | sixteen-183 | eighteen.5-200 | 3630-3690 |
| ERF-250 | 650-980 | nine.eight-98 | 61.six-one hundred twenty.four | 19-227 | 22-250 | 4450-4500 |
| ERF-290 | 650-980 | nine.8-78.4 | 92.3-128 | 22-213 | thirty-250 | 4890-4710 |
| ERF-295 | 650-980 | 9.eight-78.four | 97.three-152.5 | 23-227 | thirty-250 | 4890-4880 |
| ERF-297 | 650-980 | nine.eight-seventy eight.four | 87.5-167.6 | 26-249 | 30-280 | 5330-5520 |
| ERF-300 | 650-980 | nine.eight-78.four | one zero one.5-188.7 | 29-278 | 37-315 | 5330-5520 |
| ERF-350 | 650-980 | nine.8-78.four | 126-224.nine | 34-249 | forty five-280 | 5210-6470 |
| ERG-300 | 590-730 | 9.eight-ninety eight | 128.three-196 | 38-362 | forty five-400 | 9440-15710 |
| ERG-350 | 590-730 | 9.eight-ninety eight | 159.3-231.6 | 43-420 | fifty five-450 | 9700-1571 |
| ERG-400 | 590-730 | 9.eight-83.3 | 203.one-290.9 | fifty two-449 | seventy five-500 | 10090-11390 |
| ERG-445 | 590-730 | 9.eight-seventy three.5 | 229.seven-327.eight | fifty eight-477 | 75-560 | 10600-12230 |
| ERG-450 | 590-730 | nine.8-73.5 | 262.four-366.2 | 64-496 | 75-560 | 10600-12230 |
| ERG-five hundred | 590-730 | nine.eight-sixty three.7 | 327.four-452.4 | seventy eight-529 | ninety-560 | 12790-14620 |
| ERF-240-V | 650-980 | -nine.eight- -forty nine | 38.1-seventy eight | 13-seventy six | 18.five-ninety | 3420-3285 |
| ERF-245-V | 650-980 | -9.8- -49 | forty seven.five-ninety seven.four | sixteen-ninety five | 22-one hundred ten | 3425-3360 |
| ERF-250-V | 650-980 | -9.8- -forty nine | sixty three-a hundred and twenty | 19-117 | 22-132 | 3910-3830 |
| ERF-290-V | 650-980 | -nine.eight- -forty nine | 72.6-one hundred forty four | 22-136 | thirty-a hundred and sixty | 4415-4270 |
| ERF-295-V | 650-980 | -9.8- -forty nine | seventy six.6-152 | 23-one hundred forty five | 30-one hundred sixty | 4425-4485 |
| ERF-297-V | 650-980 | -9.eight- -49 | 84.three-166.8 | 26-one hundred sixty | thirty-180 | 5000-4980 |
| ERF-three hundred-V | 650-980 | -9.8- -forty nine | ninety seven-192 | 29-178 | 37-two hundred | 5000-4980 |
| ERF-350-V | 650-980 | -9.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.eight- -forty nine | 163-231 | forty three-216 | 55-250 | 9500-9470 |
| ERG-400V | 590-730 | -nine.eight- -49 | 199-290 | fifty two-269 | seventy five-315 | 9900-10130 |
| ERG-445V | 590-730 | -9.8- -forty nine | 224.8-326.nine | fifty eight-303 | seventy five-355 | 9900-10130 |
| ERG-450V | 590-730 | -nine.eight- -49 | 255-365 | sixty four-335 | seventy five-four hundred | 11230-11300 |
| ERG-500V | 590-730 | -9.eight- -49 | 314-452 | seventy eight-412 | 132-450 | 13630-13850 |
| ERF-245W | 650-980 | -13.three- -fifty three.three | 53.five-a hundred and one | 21.five-102 | 30-a hundred and ten | 3630-3360 |
| ERF-250W | 650-980 | -thirteen.three- -53.three | sixty nine-127 | 26.five-127 | thirty-one hundred sixty | 3985-4115 |
| ERF-290W | 650-980 | -thirteen.three- -53.three | 82.6-one hundred fifty | 30.5-149 | 37-185 | 4340-4580 |
| ERF-295W | 650-980 | -thirteen.three- -53.3 | 87-158 | 32-158 | 37-185 | 4440-4580 |
| ERF-297W | 650-980 | -thirteen.3- -fifty three.3 | 95-174 | 36-174 | forty five-200 | 5230-5130 |
| ERF-300W | 650-980 | -thirteen.three- -53.three | 109-195 | 40-193 | 55-220 | 5230-5130 |
| ERF-350W | 650-980 | -13.three- -53.three | 129-230 | 50-230 | 75-250 | 5840-5670 |
| ERG-300W | 590-730 | -thirteen.3- -fifty three.3 | 142-197 | fifty two-201 | seventy five-220 | 9100-9000 |
| ERF-350W | 590-730 | -thirteen.3- -fifty three.three | 168-234.4 | fifty nine-235.five | seventy five-280 | 9500-9600 |
| ERG-400W | 590-730 | -13.three- -53.3 | 220-276.6 | seventy one-292 | 90-315 | 9900-10130 |
| ERG-445W | 590-730 | -13.3- -fifty three.3 | 244-294.6 | 82-331 | 90-400 | 11230-11300 |
| ERG450W | 590-730 | -13.3- -53.3 | 275-368.five | 91-366 | one hundred ten-400 | 11230-11300 |
| ETRF-250 (240,250) |
650-980 | 98-196 | 64.8-112 | 135-355 | one hundred sixty-400 | 8700-8600 |
| ETRF-295 (245,295) |
650-980 | ninety eight-196 | eighty.eight-139 | 167-439 | 185-five hundred | 9200-9100 |
| ETRF-three hundred (245,295) |
650-980 | ninety eight-176.four | 102-174 | 206-497 | 250-560 | 10320-10500 |
| ETRF-350 (245,295) |
650-980 | 98-137.two | 124-207 | 241-473 | 280-560 | 10700-11110 |
| ETRG-four hundred (three hundred,400) |
590-740 | ninety eight-176.four | 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 | -53.3–eighty | 72-121 | seventy five.6-121 | ninety-a hundred and sixty | 6100-6470 |
| ETRF-295W (245/295) |
650-980 | -53.3–80 | 93.8-154 | 99.5-186 | 110-220 | 7000-6400 |
| ETRF-300W (2505/300) |
650-980 | -53.3–eighty | 116-189 | one hundred fifteen-220 | 132-250 | 7750-7760 |
| EL81WD | 580-980 | 9.eight-fifty eight.8 | fifty four.two-130 | 18-151 | forty five-185 | 3595 |
| EL82WDB | 580-980 | 9.eight-fifty eight.eight | 72.eight-161 | 22-191 | forty five-220 | 3860 |
| EL83WDA | 580-980 | 9.eight-58.nine | a hundred and one-213 | 28.5-202 | forty five-220 | 4300 |
| EL84WDA | 580-980 | nine.8-58.eight | 129-267 | 35.4-252 | 45-280 | 4720 |
| EL93WDA | 580-730 | nine.eight-49 | 230-329 | fifty six.four-311 | seventy five-355 | 7765 |
| EL94WDA | 580-730 | 9.eight-49 | 263-373 | sixty four-353 | 75-four hundred | 8130 |
| EL95WDA | 490-580 | nine.eight-fifty eight.8 | 308-434 | 81.four-414 | 90-450 | 11500 |
| EL96WDA | 580 | fifty eight.8 | 381 | 497 | 560 | 11500 |
| E397WN | 1000-1650 | 40 | five-nine | |||
| E408WN | 870-1650 | forty | 10-22 | |||
| E517WN | 980-1580 | 40 | 20-30 | |||
| E520WN | 930-1550 | forty | 24-45 | |||
| E607WN | 750-1250 | forty | 45-seventy six | |||
| E610WN | 750-1250 | forty | seventy five-one hundred thirty |
Spare components and structure of our roots blower:
Bundle of our Roots Blower
Pack into iron situation, two layer,blower physique and motor in decrease layer, inlet/out silencer and so on in upper layer
Roots blower pack strategy identical as iron case, just change to Fumigation Cost-free Plywood Situation
Our manufacturing unit is a expert company of Roots blowers which has more than twenty years’ experience in machinery
producing. It is found in Xihu (West Lake) Dis. East Industrial Park, 50 kilometers to the east of Shan EPT provincial
cash— HangZhou. Our business also has handy traffic transportation, as it is 15 kilometers absent from
Diaozhen City station of HangZhou-HangZhou expressway, and thirty kilometers absent from East HangZhou station of
ZheJiang -ZheJiang expressway.The top product of our organization is ESR -sort Roots Blower. The roots
vacuum pump is a new kind of higher-effectiveness roots blower, which is designed independently primarily based on the
domestic and overseas advanced technologies. Many patented technologies have been adopted on Roots
Blower, and therefore we have produced considerable effects in energy conservation and noise reduction, etc.. So much, our
company has invested more than thirty,000,000 RMB to introduce such sophisticated professional products as
horizontal machining centre, vertical machining centre, two-way CNC surface area planer, CNC lathe, CNC milling
device, CNC planer, aircraft grinder, cylindrical grinding device, and three coordinates tests device.
Besides, we have taken numerous steps to standardize the process stream this sort of as operating and cooperating
with several scientific research units, schools and universities at residence and abroad. We also continuously consider to
take in and enhance the domestic sophisticated manufacturing systems, so as to promote the upgrading and
optimization of the product and make the product good quality get to the advanced amount at house and overseas.
ESR -type Roots Blower consists of several collection these kinds of as Three-leaves Type, Two-leaves Type and Centrifugal
Type,which can be even more divided to hundreds of kinds. The goods are widely utilized in sewage therapy,
pneumatic conveying,vacuum packaging, aquaculture, foodstuff processing, EPT electricity, petrochemical, cement,
mining and other industries. Our merchandise have this sort of benefits as reduced sound, vitality saving, stable top quality,
and lengthy services existence, and many others.. With the product sales outlets throughout the domestic cash towns, our products market effectively all
over the place, and have been exported to North The united states,Russia, Malaysia, Indonesia, Vietnam, South Africa
and some other nations around the world. Obtaining obtained the ISO9001 Intercontinental Top quality Method Certification, we have
proven and improved the quality assurance of the merchandise developing, manufacturing, and installation.
From the procedure of design, research and growth to the finished items, we have received the entire
method managed independently, thus delivering the entire foundation and reliability promise for the merchandise security
and sturdiness. Possessing a perfect revenue network and after-income service, we supply our buyers with higher-
good quality and much more productive support.All employees of our organization sincerely welcome the broad masses of buddies to
manual, and negotiate company with us.
Our Roots Blower Workshop
Doosn Horzitonal Equipment Heart
The Application of the Roots Blower
Servicing and inspection
(1) Check all fasteners and locating pins conditions whether or not they are loosening.
(2) Often examine whether the leakage phenomenon of the human body.
(3) Pay focus to lubrication, sum of grease and noises when working,
decide no matter whether it performs beneath the required conditions.
(four) Lubricant & grease: The lubricant is for medium load industrial gear oil
(grade 220, kinematic viscosity of 198 ~ 242mm2 / s 40ºC, flash level ≥ 200ºC)
The grease is butter (artificial lithium grease penetration 220-250, drop point ≥
190ºC). Substitute the lubricant and grease right after 1st two hundred hrs operating, and exchange
once again right after a moth running. Afterwards, substitute the lubricant and grease in accordance to the
environment and lubricant (grease) good quality suggest a appropriate EPT for 3
months.
(five) Constantly check out the inlet air filter, clean or replace the filter in time.
(6) Blower overload occasionally not right away shown, so pay out attention to
the consumption and exhaust force, bearing temperature and the existing enhance tendencies
of motor to figure out whether the blower performs generally
(seven) Just before disassembling the blower, the assembling relation and proportions
must be recorded or calculated, make marks on factors to make certain the unique
needs following assembling.
(8) When newly device or overhaul, the oil tank need to be cleaned just before use
and suggest substitute all grease right after eight hours operating.
Widespread failure explanation and troubleshooting
| No | Failure | Achievable causes | Elimination methods |
| 1 | Friction among the impeller |
(one) Impurities on the impeller, resulting in the gap is as well little (two) Equipment dress in, ensuing in a large backlash (three) The gear is not effectively fixed, can not keep the impeller synchronization (four) Bearing use ensuing in clearance rising. |
(1) Remove dust and examine whether there is injury areas (2) Adjust the gear hole, replace the gears if the equipment backlash is better than the regular thirty% to 50% (three)Re-assemble the gears, hold the taper get in touch with region is to seventy five% (four)Replace the bearing |
| 2 | Collision amongst impeller and wall, the impeller best and casing |
(one) Set up hole is not correct (2) running strain is way too high, exceeding the specified worth (3) Running temperature is way too substantial (four) Casing or base deformation, positioning supporter failure (5) Bearing axial area is not very good |
(one) Modify the gap (2) Discover leads to of overloading, diminished the strain to the specified price (three) Verify the set up precision and lessen the pipe stress (four) Check and restore bearings, and to make certain the clearance (five)Relocation |
| 3 | Temperature also large |
(one) Oil in tank is also a lot, way too thick or also filthy (2) Filter or silencer is blocked (three)The stress is higher than the specified value (4)Too much use of the impeller, huge gap (five)Very poor ventilation, indoor temperature is large, ensuing in inlet air’s high temperature (6) The rotating pace is too minimal,end result in the belt slipping. |
(one)Lessen the oil stage or count on oil (two)Eliminate of blocking objects (three)Decreasing the strain by means of the blower (four)Fix its clearance (5)Open vents to minimize place temperature (6) Enhance pace to avert the belt slipping. |
| four | Insufficient movement |
(1) The inlet filter is blocked (2) Impeller wear and the gap will increase as well a lot (3) Belt slipping (4) Massive imports pressure reduction (five) Pipeline air flow leakage |
(one) Clean the filter dust and obstruction (two) Restore the gap (3)Tighten the belt and enhance the variety of belts (4)Adjust the inlet pressure to the specified price (5) Check and fix the pipeline |
| 5 | Oil leaking or oil leaking into the enclosure |
(one)Substantial tank place cause leakage from the discharge port (two) Seal dress in, ensuing in shaft oil spills (3) The stress is greater than the specified value |
(one)Decrease the oil amount (2)Exchange the seals (3)Very clear the air vents, 2mm diameter faucet is mounted in the middle chamber, open up the faucet under the wall |
| six | Abnormal vibration and sounds |
(one)Bearing clearance exceeds the specified benefit or bearing dress in (2) The gear backlash is way too massive, not in a tight 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, (5) Friction among the impeller and the inlet housing brought on by overheating (six) Unbalance of the impeller triggered by fouling or international physique (seven) Anchor bolts or other fasteners are loosened |
(1)Substitute bearings or bearing seat (two)Reassemble equipment and make certain backlash (3)Cleaning blower, check out the scenario is ruined (4)Verify the again force, check the wheel and modify hole (five)Verify the filter and back again force, boost the gap in between the impeller inlet and the casing (six)Thoroughly clean the impeller and the casing, to make certain that the impeller clearance operate (7) Tighten the anchor bolts and leveling the base. |
| 7 | Motor overload |
(1)In contrast with the necessary stress, the strain variation is big that the back again force or the inlet strain is high (2) When compared with the products demands, blower flow is also big, so its stress raises (3)Inlet filter is blocked, or outlet pipe is obstructed or blocked (4) Collusion or friction (caught) rotating parts (five) The oil degree is also substantial (6) Slim V-belt is overheat, vibration is also large, or pulley is way too modest |
(one) Reduce the pressure to the specified value (2) Exhaust the excess gas into the atmosphere or lessen the blower velocity (3) Get rid of the obstructions (4)Right away shut down, check the explanation (five) Change the oil to the right level (six) Check out the belt stress, and replaced it with huge diameter pulley. |
Our Support
1. Pre sell service two. Following sell service
a. recommend the ideal model c. on the internet specialized help,
b. factory tour d. total life spare elements and techinical help
Gurantee
12 months gurantee for our roots blowers
/ The use of unique products manufacturer’s (OEM) part quantities or emblems , e.g. CASE® and John Deere® are for reference purposes only and for indicating solution use and compatibility. Our business and the detailed EPT elements contained herein are not sponsored, authorized, or made by the OEM. /
