We – EPG Team the most significant couplings and gears manufacturing facility in China with five distinct branches. For more specifics: Mobile/whatsapp/telegram/Kakao us at: 0086-13083988828 /
We make all kinds of roots blower, centrifugal blower, Our Primary merchandise are as under:
Sort | Diameter | Fee of circulation | Force |
ESR-MJ(Intensive Variety) | Φ50~Φ300mm | .five~140m³/min | nine.8KPa~ninety eight.8Kpa |
ESR(Common Sort) | Φ50~Φ350mm | .5~140m³/min | 9.8KPa~78.4Kpa |
ESR-H(Substantial-stress Kind) | Φ50~Φ350mm | .7~160m³/min | fifty eight.8KPa~ninety eight.8Kpa |
ESR-V(Vacuum Pump) | Φ50~Φ350mm | .five~160m³/min | nine.8KPa~53.3Kpa |
EL Collection | Φ200~Φ600mm | twenty.3~750m³/min | 9.8KPa~fifty eight.8Kpa |
Multistage Centrifugal Blower or C-Series |
Φ250~Φ500mm | fifty~500m³/min | nine.8KPa~98Kpa |
ERR-ERG Variety | Φ250~Φ500mm | a hundred and twenty~420m³/min | nine.8KPa~98.8Kpa |
The working basic principle of the 3-blade roots blower: two a few-lobed rotors are arranged in the cavity, and the
suction port and the discharge port are opened on equally sides of the cavity. By means of the action of a pair of
synchronous gears, the two rotors rotate in opposite instructions 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 obtain the
goal of blowing.
Characteristic of our roots blower:
1. Large adjustment of the air volume
two. Lower Sound
3. High performance
4. Minimal strength cosumption
five. Long time existence
6. Dependable running, simple servicing,modest footprint
The parameters of our roots blower:
Variety | Ratary Velocity (r/min) |
Strain Rise (Kpa) |
Capacity (m/min) |
Shaft Electrical power (Kw) |
Motor | Unit Maximn Bodyweight(Kg) |
Electricity (Kw) |
||||||
ESR-50 | 1100-2120 | nine.8-fifty eight.eight | .65-two.fifty eight | .3-3.54 | .seventy five-4 | 128-158 |
ESR-65 | 1100-2130 | 9.8-fifty eight.8 | .ninety four-3.sixty six | .38-four.forty six | .seventy five-five.five | a hundred and fifty five-185 |
ESR-80 | 1140-1900 | nine.eight-58.8 | two.34-5.43 | 1.04-seven.forty two | 2.two-eleven | 155-277 |
ESR-a hundred | 1060-1980 | 9.eight-58.8 | four.fifty seven-nine.05 | 1.35-twelve.fifteen | three-fifteen | 309-377 |
ESR-125 | 980-1850 | 9.8-fifty eight.eight | five.35-12.4 | 1.65-5.19 | 5.five-eighteen.5 | 408-451 |
ESR-125C | 970-1830 | nine.8-fifty eight.8 | seven.five-seventeen.fifty seven | 3.two-eighteen.5 | four-22 | 408-451 |
ESR-one hundred fifty | 810-1730 | 9.8-58.eight | 10.37-27.15 | 3.eighty four-forty.82 | 7.five-45 | 688-848 |
ESR-one hundred seventy five | 970-1520 | 9.eight-58.8 | 19.sixty five-36.65 | seven.2-45.95 | 11-fifty five | 980-1080 |
ESR-200B | 740-1450 | 9.eight-fifty eight.eight | 19.65-forty four.eight | ten.15-60.forty four | fifteen-75 | 1272-1546 |
ESR-200 | 810-1480 | 9.eight-fifty eight.eight | 27.65-59.2 | eight.05-eighty,12 | fifteen-ninety | 1272-1546 |
ESR-250B | 1100-1480 | 9.8-fifty eight.eight | fifty four.77-seventy seven.fifty five | 19.ninety seven-90.97 | 30-110 | 1490-2454 |
ESR-250 | 990-1480 | 9.eight-58.eight | sixty one.four-ninety seven.fifty two | twenty.1-117.three | 30-132 | 1490-2454 |
ESR-three hundred | 990-1480 | nine.8-fifty eight.8 | 87.one-138.1 | 26.4-167.8 | 37-185 | 3326-3446 |
ESR-350 | 730-1480 | 9.eight-fifty eight.8 | seventy eight.41-177.31 | fifty five-250 | ||
ESR-50H | 1230-2120 | 63.7-98 | .forty five-two.02 | 2.05-six.12 | 3-7.five | 160–170 |
ESR-65H | 1240-2130 | 63.7-ninety eight | .78-two.fifty three | 2.89-seven.55 | 4-eleven | 198-230 |
ESR-80H | 1140-1900 | 63.7-ninety eight | 1.82-4.fifty five | four.09-10.1 | 5.five-15 | 316-326 |
ESR-100H | 1060-1980 | sixty three.seven-98 | 2.sixty five-8.06 | six.36-seventeen.2 | seven.5-22 | 398-459 |
ESR-125H | 980-1850 | 63.7-ninety eight | four.64-11.23 | eight.92-24.two | eleven-thirty | 544-630 |
ESR-150H | 810-1730 | sixty three.seven-98 | 9.fifty three-twenty five.seventy six | seventeen.16-sixty five | 18.five-75 | 752-1571 |
ESR-200H | 810-1480 | sixty three.7-ninety eight | 25.34-fifty six.ninety two | 42.34-one hundred twenty | fifty five-132 | 1426-1934 |
ESR-250H | 990-1480 | sixty three.seven-98 | fifty eight-ninety three.7 | eighty three.two-205 | 90-220 | 2980-3468 |
ESR300H | 990-1480 | 63.7-98 | 86.9-134.one | 114.7-270 | 132-280 | 3476-3998 |
ERF-245 | 650-980 | 9.8-ninety eight | 47.five-97.four | 16-183 | 18.five-200 | 3630-3690 |
ERF-250 | 650-980 | nine.eight-ninety eight | 61.six-one hundred twenty.four | 19-227 | 22-250 | 4450-4500 |
ERF-290 | 650-980 | nine.eight-seventy eight.4 | ninety two.three-128 | 22-213 | 30-250 | 4890-4710 |
ERF-295 | 650-980 | nine.eight-seventy eight.four | 97.three-152.5 | 23-227 | thirty-250 | 4890-4880 |
ERF-297 | 650-980 | 9.eight-seventy eight.4 | 87.five-167.six | 26-249 | 30-280 | 5330-5520 |
ERF-300 | 650-980 | 9.eight-78.four | 101.5-188.seven | 29-278 | 37-315 | 5330-5520 |
ERF-350 | 650-980 | 9.8-seventy eight.4 | 126-224.nine | 34-249 | 45-280 | 5210-6470 |
ERG-three hundred | 590-730 | 9.8-98 | 128.3-196 | 38-362 | 45-four hundred | 9440-15710 |
ERG-350 | 590-730 | 9.8-98 | 159.3-231.6 | forty three-420 | 55-450 | 9700-1571 |
ERG-400 | 590-730 | nine.eight-83.3 | 203.one-290.9 | 52-449 | seventy five-five hundred | 10090-11390 |
ERG-445 | 590-730 | nine.eight-seventy three.5 | 229.7-327.eight | fifty eight-477 | 75-560 | 10600-12230 |
ERG-450 | 590-730 | nine.eight-seventy three.5 | 262.four-366.two | 64-496 | 75-560 | 10600-12230 |
ERG-five hundred | 590-730 | nine.eight-sixty three.seven | 327.four-452.4 | 78-529 | 90-560 | 12790-14620 |
ERF-240-V | 650-980 | -9.eight- -forty nine | 38.one-seventy eight | 13-76 | 18.5-ninety | 3420-3285 |
ERF-245-V | 650-980 | -9.8- -forty nine | 47.five-97.four | sixteen-ninety five | 22-110 | 3425-3360 |
ERF-250-V | 650-980 | -9.eight- -49 | sixty three-one hundred twenty | 19-117 | 22-132 | 3910-3830 |
ERF-290-V | 650-980 | -9.8- -49 | 72.6-one hundred forty four | 22-136 | thirty-one hundred sixty | 4415-4270 |
ERF-295-V | 650-980 | -9.8- -49 | seventy six.6-152 | 23-145 | 30-a hundred and sixty | 4425-4485 |
ERF-297-V | 650-980 | -9.eight- -forty nine | eighty four.three-166.8 | 26-one hundred sixty | thirty-one hundred eighty | 5000-4980 |
ERF-three hundred-V | 650-980 | -nine.8- -49 | 97-192 | 29-178 | 37-two hundred | 5000-4980 |
ERF-350-V | 650-980 | -9.eight- -forty nine | 116-225 | 34-209 | forty five-250 | 5400-5700 |
ERG-300V | 590-730 | -9.8- -forty nine | 133-193 | 38-184 | 45-220 | 7800-9100 |
ERG-350V | 590-730 | -nine.eight- -49 | 163-231 | 43-216 | fifty five-250 | 9500-9470 |
ERG-400V | 590-730 | -nine.eight- -forty nine | 199-290 | fifty two-269 | 75-315 | 9900-10130 |
ERG-445V | 590-730 | -9.eight- -49 | 224.eight-326.9 | fifty eight-303 | 75-355 | 9900-10130 |
ERG-450V | 590-730 | -nine.8- -49 | 255-365 | sixty four-335 | 75-four hundred | 11230-11300 |
ERG-500V | 590-730 | -9.8- -49 | 314-452 | seventy eight-412 | 132-450 | 13630-13850 |
ERF-245W | 650-980 | -thirteen.3- -fifty three.3 | 53.five-one zero one | 21.5-102 | 30-a hundred and ten | 3630-3360 |
ERF-250W | 650-980 | -thirteen.3- -53.three | 69-127 | 26.five-127 | 30-a hundred and sixty | 3985-4115 |
ERF-290W | 650-980 | -thirteen.three- -53.three | eighty two.six-a hundred and fifty | thirty.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 | -thirteen.three- -fifty three.three | 95-174 | 36-174 | forty five-200 | 5230-5130 |
ERF-300W | 650-980 | -13.three- -53.three | 109-195 | forty-193 | 55-220 | 5230-5130 |
ERF-350W | 650-980 | -thirteen.3- -fifty three.three | 129-230 | 50-230 | 75-250 | 5840-5670 |
ERG-300W | 590-730 | -13.three- -fifty three.3 | 142-197 | fifty two-201 | 75-220 | 9100-9000 |
ERF-350W | 590-730 | -13.3- -fifty three.3 | 168-234.four | fifty nine-235.5 | 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.3- -fifty three.3 | 244-294.6 | eighty two-331 | 90-four hundred | 11230-11300 |
ERG450W | 590-730 | -13.three- -fifty three.three | 275-368.5 | 91-366 | one hundred ten-four hundred | 11230-11300 |
ETRF-250 (240,250) |
650-980 | 98-196 | 64.eight-112 | one hundred thirty five-355 | a hundred and sixty-four hundred | 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-176.4 | 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-400 (300,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-a thousand | 24200-27600 |
ETRF-250W (240,250) |
650-980 | -fifty three.three–eighty | seventy two-121 | 75.six-121 | ninety-one hundred sixty | 6100-6470 |
ETRF-295W (245/295) |
650-980 | -fifty three.3–80 | 93.8-154 | ninety nine.five-186 | one hundred ten-220 | 7000-6400 |
ETRF-300W (2505/three hundred) |
650-980 | -fifty three.3–80 | 116-189 | one hundred fifteen-220 | 132-250 | 7750-7760 |
EL81WD | 580-980 | 9.8-58.eight | 54.2-a hundred thirty | 18-151 | forty five-185 | 3595 |
EL82WDB | 580-980 | nine.eight-58.8 | 72.eight-161 | 22-191 | 45-220 | 3860 |
EL83WDA | 580-980 | nine.8-fifty eight.nine | 101-213 | 28.5-202 | 45-220 | 4300 |
EL84WDA | 580-980 | 9.8-fifty eight.8 | 129-267 | 35.four-252 | forty five-280 | 4720 |
EL93WDA | 580-730 | 9.eight-49 | 230-329 | 56.4-311 | 75-355 | 7765 |
EL94WDA | 580-730 | 9.eight-49 | 263-373 | sixty four-353 | 75-400 | 8130 |
EL95WDA | 490-580 | nine.8-fifty eight.8 | 308-434 | 81.four-414 | ninety-450 | 11500 |
EL96WDA | 580 | fifty eight.8 | 381 | 497 | 560 | 11500 |
E397WN | a thousand-1650 | forty | five-nine | |||
E408WN | 870-1650 | 40 | 10-22 | |||
E517WN | 980-1580 | forty | twenty-30 | |||
E520WN | 930-1550 | 40 | 24-forty five | |||
E607WN | 750-1250 | forty | forty five-seventy six | |||
E610WN | 750-1250 | forty | 75-one hundred thirty |
Spare areas and structure of our roots blower:
Bundle of our Roots Blower
Pack into iron scenario, two layer,blower physique and motor in reduced layer, inlet/out silencer etc in higher layer
Roots blower pack method same as iron circumstance, just modify to Fumigation Cost-free Plywood Case
Our manufacturing facility is a expert producer of Roots blowers which has above 20 years’ experience in machinery
production. It is positioned in Xihu (West Lake) Dis. East Industrial Park, fifty kilometers to the east of Shan EPT provincial
funds— HangZhou. Our business also has convenient site 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 top solution of our organization is ESR -sort Roots Blower. The roots
vacuum pump is a new type of high-performance roots blower, which is developed independently dependent on the
domestic and international innovative technologies. Several patented technologies have been adopted on Roots
Blower, and as a result we have manufactured considerable results in power conservation and noise reduction, etc.. So considerably, our
firm has invested more than thirty,000,000 RMB to introduce this sort of advanced expert tools as
horizontal machining heart, vertical machining centre, two-way CNC area planer, CNC lathe, CNC milling
equipment, CNC planer, aircraft grinder, cylindrical grinding device, and three coordinates screening machine.
In addition to, we have taken different measures to standardize the process movement this sort of as working and cooperating
with many scientific research units, colleges and universities at home and abroad. We also constantly try out to
soak up and increase the domestic advanced creation technologies, so as to promote the upgrading and
optimization of the item and make the merchandise high quality reach the advanced degree at home and abroad.
ESR -variety Roots Blower consists of a number of sequence such as Three-leaves Type, Two-leaves Type and Centrifugal
Sort,which can be even more divided to hundreds of types. The items are broadly utilized in sewage remedy,
pneumatic conveying,vacuum packaging, aquaculture, foodstuff processing, EPT electrical power, petrochemical, cement,
mining and other industries. Our merchandise have this kind of positive aspects as lower sounds, strength saving, steady good quality,
and long provider existence, and so forth.. With the sales outlets throughout the domestic cash cities, our merchandise offer effectively all
above the nation, and have been exported to North The united states,Russia, Malaysia, Indonesia, Vietnam, South Africa
and some other nations around the world. Getting received the ISO9001 International Quality Method Certification, we have
established and improved the good quality assurance of the merchandise designing, producing, and set up.
From the procedure of layout, study and advancement to the finished products, we have obtained the total
process controlled independently, hence providing the complete basis and dependability guarantee for the goods balance
and toughness. Getting a perfect revenue community and after-sales services, we provide our consumers with greater-
high quality and far more effective services.All personnel of our organization sincerely welcome the wide masses of buddies to
information, and negotiate organization with us.
Our Roots Blower Workshop
Doosn Horzitonal Device Heart
The Application of the Roots Blower
Upkeep and inspection
(one) Check out all fasteners and locating pins circumstances whether they are loosening.
(two) Often check regardless of whether the leakage phenomenon of the physique.
(3) Spend consideration to lubrication, sum of grease and noises when running,
establish regardless of whether it works under the needed problems.
(4) Lubricant & grease: The lubricant is for medium load industrial equipment oil
(quality 220, kinematic viscosity of 198 ~ 242mm2 / s 40ºC, flash level ≥ 200ºC)
The grease is butter (artificial lithium grease penetration 220-250, fall level ≥
190ºC). Exchange the lubricant and grease after initial 200 hrs working, and change
once more right after a moth working. Later on, exchange the lubricant and grease in accordance to the
surroundings and lubricant (grease) top quality propose a ideal EPT for a few
months.
(5) Constantly check the inlet air filter, clear or replace the filter in time.
(six) Blower overload at times not instantly displayed, so pay focus to
the ingestion and exhaust force, bearing temperature and the recent enhance traits
of motor to figure out regardless of whether the blower performs usually
(7) Before disassembling the blower, the assembling relation and proportions
should be recorded or measured, make marks on parts to make sure the first
needs after assembling.
(8) When newly device or overhaul, the oil tank must be cleaned before use
and propose replace all grease right after 8 hrs managing.
Typical failure cause and troubleshooting
No | Failure | Feasible factors | Elimination strategies |
1 | Friction amongst the impeller |
(1) Impurities on the impeller, resulting in the hole is as well modest (two) Gear dress in, ensuing in a big backlash (3) The gear is not effectively set, can not sustain the impeller synchronization (4) Bearing put on resulting in clearance increasing. |
(1) Remove filth and check out whether there is injury elements (2) Change the equipment hole, substitute the gears if the gear backlash is higher than the regular 30% to 50% (3)Re-assemble the gears, hold the taper make contact with spot is to seventy five% (4)Exchange the bearing |
two | Collision in between impeller and wall, the impeller top and casing |
(one) Set up hole is not correct (2) operating stress is also high, exceeding the specified benefit (three) Running temperature is way too high (four) Casing or base deformation, positioning enthusiast failure (five) Bearing axial location is not very good |
(one) Modify the hole (two) Determine causes of overloading, lowered the pressure to the specified price (three) Check out the installation precision and minimize the pipe tension (four) Verify and fix bearings, and to make sure the clearance (5)Relocation |
three | Temperature also large |
(1) Oil in tank is as well considerably, too thick or as well filthy (2) Filter or silencer is blocked (3)The strain is higher than the specified benefit (four)Excessive wear of the impeller, large gap (5)Inadequate ventilation, indoor temperature is large, resulting in inlet air’s large temperature (6) The rotating velocity is also low,consequence in the belt slipping. |
(one)Lessen the oil stage or depend on oil (two)Take away of blocking objects (3)Decreasing the strain through the blower (4)Fix its clearance (5)Open vents to minimize room temperature (six) Enhance pace to prevent the belt slipping. |
4 | Inadequate movement |
(one) The inlet filter is blocked (two) Impeller use and the hole raises too a lot (three) Belt slipping (4) Big imports stress loss (five) Pipeline air flow leakage |
(one) Clear the filter dust and obstruction (2) Restore the gap (three)Tighten the belt and improve the variety of belts (4)Change the inlet force to the specified price (5) Examine and repair the pipeline |
5 | Oil leaking or oil leaking into the enclosure |
(1)Substantial tank situation trigger leakage from the discharge port (two) Seal wear, resulting in shaft oil spills (three) The stress is greater than the specified benefit |
(one)Minimize 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 below the wall |
six | Abnormal vibration and noise |
(1)Bearing clearance exceeds the specified price or bearing put on (two) The gear backlash is too large, not in a limited fixed (3) The international objects and dust induced by the impeller and the impeller, the impeller and the housing collision (4) the impeller shaft deformation brought on the collision triggered by overload, (5) Friction among the impeller and the inlet housing brought on by overheating (6) Unbalance of the impeller triggered by fouling or overseas human body (7) Anchor bolts or other fasteners are loosened |
(1)Replace bearings or bearing seat (2)Reassemble equipment and ensure backlash (3)Cleaning blower, examine the circumstance is ruined (four)Examine the back again strain, verify the wheel and modify hole (5)Check out the filter and back strain, boost the gap in between the impeller inlet and the casing (6)Thoroughly clean the impeller and the casing, to ensure that the impeller clearance work (seven) Tighten the anchor bolts and leveling the foundation. |
7 | Motor overload |
(one)When compared with the required pressure, the force difference is massive that the back again strain or the inlet pressure is higher (2) In contrast with the equipment needs, blower circulation is too massive, so its strain increases (3)Inlet filter is blocked, or outlet pipe is obstructed or blocked (4) Collusion or friction (stuck) rotating parts (five) The oil stage is as well high (6) Narrow V-belt is overheat, vibration is way too huge, or pulley is also little |
(1) Decrease the force to the specified worth (2) Exhaust the excessive gas into the atmosphere or reduce the blower speed (3) Get rid of the obstructions (four)Quickly shut down, check the purpose (five) Alter the oil to the proper degree (six) Check the belt tension, and replaced it with large diameter pulley. |
Our Service
one. Pre market service two. Following offer service
a. suggest the ideal model c. on the web technological help,
b. manufacturing facility tour d. total life spare parts and techinical assistance
Gurantee
twelve months gurantee for our roots blowers
/ The use of original products manufacturer’s (OEM) portion figures or trademarks , e.g. CASE® and John Deere® are for reference purposes only and for indicating product use and compatibility. Our company and the listed EPT elements contained herein are not sponsored, accepted, or created by the OEM. /