We – EPG Team the most significant couplings and gears manufacturing unit in China with 5 distinct branches. For much more information: Mobile/whatsapp/telegram/Kakao us at: 0086-13083988828 /
We make all types of roots blower, centrifugal blower, Our Main products are as beneath:
Kind | Diameter | Charge of circulation | Force |
ESR-MJ(Intense Type) | Φ50~Φ300mm | .5~140m³/min | 9.8KPa~ninety eight.8Kpa |
ESR(Normal Variety) | Φ50~Φ350mm | .5~140m³/min | nine.8KPa~78.4Kpa |
ESR-H(High-force Type) | Φ50~Φ350mm | .seven~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-Series | Φ250~Φ500mm | 50~500m³/min | nine.8KPa~98Kpa |
ERR-ERG Sort | Φ250~Φ500mm | one hundred twenty~420m³/min | 9.8KPa~ninety eight.8Kpa |
The operating 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 both sides of the cavity. By means of the action of a pair of
synchronous gears, the two rotors rotate in opposite 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 accomplish the
purpose of blowing.
Function of our roots blower:
1. Huge adjustment of the air quantity
two. Minimal Sound
3. Higher effectiveness
four. Minimal energy cosumption
five. Prolonged time existence
6. Trustworthy working, effortless maintenance,modest footprint
The parameters of our roots blower:
Type | Ratary Speed (r/min) | Pressure Rise (Kpa) | Potential (m/min) | Shaft Electricity (Kw) | Motor | Unit Maximn Bodyweight(Kg) |
Power (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 | nine.8-fifty eight.8 | .ninety four-three.sixty six | .38-4.forty six | .seventy five-5.5 | 155-185 |
ESR-eighty | 1140-1900 | 9.8-58.eight | two.34-five.forty three | 1.04-seven.42 | 2.2-eleven | a hundred and fifty five-277 |
ESR-100 | 1060-1980 | nine.eight-fifty eight.8 | four.fifty seven-nine.05 | one.35-12.15 | 3-fifteen | 309-377 |
ESR-125 | 980-1850 | nine.eight-58.8 | 5.35-twelve.4 | 1.65-5.19 | 5.5-eighteen.five | 408-451 |
ESR-125C | 970-1830 | nine.eight-58.eight | seven.five-17.57 | 3.2-18.five | four-22 | 408-451 |
ESR-150 | 810-1730 | 9.8-58.eight | 10.37-27.fifteen | 3.eighty four-40.82 | seven.5-45 | 688-848 |
ESR-175 | 970-1520 | 9.eight-58.8 | 19.65-36.sixty five | 7.two-forty five.95 | eleven-fifty five | 980-1080 |
ESR-200B | 740-1450 | 9.eight-fifty eight.8 | 19.sixty five-44.eight | 10.15-sixty.44 | 15-seventy five | 1272-1546 |
ESR-two hundred | 810-1480 | nine.8-fifty eight.eight | 27.sixty five-59.2 | 8.05-80,12 | fifteen-ninety | 1272-1546 |
ESR-250B | 1100-1480 | 9.8-fifty eight.8 | 54.seventy seven-seventy seven.fifty five | 19.ninety seven-ninety.97 | thirty-one hundred ten | 1490-2454 |
ESR-250 | 990-1480 | nine.8-fifty eight.8 | sixty one.four-ninety seven.fifty two | 20.one-117.three | 30-132 | 1490-2454 |
ESR-three hundred | 990-1480 | 9.eight-fifty eight.eight | 87.1-138.one | 26.four-167.eight | 37-185 | 3326-3446 |
ESR-350 | 730-1480 | nine.eight-58.eight | 78.forty one-177.31 | 55-250 | ||
ESR-50H | 1230-2120 | 63.7-ninety eight | .forty five-two.02 | two.05-six.12 | 3-seven.five | one hundred sixty–a hundred and seventy |
ESR-65H | 1240-2130 | 63.7-98 | .seventy eight-2.53 | two.89-seven.55 | 4-eleven | 198-230 |
ESR-80H | 1140-1900 | 63.seven-ninety eight | one.eighty two-four.55 | 4.09-10.one | five.five-fifteen | 316-326 |
ESR-100H | 1060-1980 | 63.seven-98 | 2.sixty five-8.06 | six.36-17.two | seven.five-22 | 398-459 |
ESR-125H | 980-1850 | 63.seven-98 | 4.sixty four-eleven.23 | eight.ninety two-24.2 | 11-thirty | 544-630 |
ESR-150H | 810-1730 | 63.seven-ninety eight | nine.fifty three-25.seventy six | 17.16-65 | eighteen.5-seventy five | 752-1571 |
ESR-200H | 810-1480 | sixty three.seven-98 | twenty five.34-56.ninety two | 42.34-120 | fifty five-132 | 1426-1934 |
ESR-250H | 990-1480 | sixty three.7-ninety eight | fifty eight-ninety three.seven | 83.two-205 | 90-220 | 2980-3468 |
ESR300H | 990-1480 | sixty three.7-ninety eight | 86.9-134.one | 114.seven-270 | 132-280 | 3476-3998 |
ERF-245 | 650-980 | 9.8-98 | forty seven.five-ninety seven.4 | sixteen-183 | eighteen.5-200 | 3630-3690 |
ERF-250 | 650-980 | 9.8-98 | 61.six-a hundred and twenty.four | 19-227 | 22-250 | 4450-4500 |
ERF-290 | 650-980 | nine.eight-78.4 | ninety two.3-128 | 22-213 | 30-250 | 4890-4710 |
ERF-295 | 650-980 | 9.eight-78.four | ninety seven.3-152.5 | 23-227 | thirty-250 | 4890-4880 |
ERF-297 | 650-980 | 9.8-78.4 | 87.five-167.6 | 26-249 | thirty-280 | 5330-5520 |
ERF-300 | 650-980 | nine.8-seventy eight.4 | one hundred and one.five-188.7 | 29-278 | 37-315 | 5330-5520 |
ERF-350 | 650-980 | nine.8-seventy eight.four | 126-224.nine | 34-249 | 45-280 | 5210-6470 |
ERG-300 | 590-730 | 9.8-98 | 128.3-196 | 38-362 | 45-400 | 9440-15710 |
ERG-350 | 590-730 | nine.eight-ninety eight | 159.3-231.6 | forty three-420 | fifty five-450 | 9700-1571 |
ERG-400 | 590-730 | nine.eight-83.3 | 203.one-290.nine | fifty two-449 | 75-five hundred | 10090-11390 |
ERG-445 | 590-730 | 9.8-73.five | 229.7-327.eight | fifty eight-477 | seventy five-560 | 10600-12230 |
ERG-450 | 590-730 | 9.8-73.5 | 262.four-366.two | 64-496 | 75-560 | 10600-12230 |
ERG-500 | 590-730 | 9.eight-63.seven | 327.four-452.four | seventy eight-529 | 90-560 | 12790-14620 |
ERF-240-V | 650-980 | -nine.eight- -49 | 38.one-78 | 13-76 | eighteen.five-90 | 3420-3285 |
ERF-245-V | 650-980 | -9.8- -49 | 47.five-ninety seven.four | 16-95 | 22-a hundred and ten | 3425-3360 |
ERF-250-V | 650-980 | -nine.8- -49 | sixty three-one hundred twenty | 19-117 | 22-132 | 3910-3830 |
ERF-290-V | 650-980 | -9.8- -49 | 72.six-one hundred forty four | 22-136 | thirty-one hundred sixty | 4415-4270 |
ERF-295-V | 650-980 | -9.eight- -49 | seventy six.6-152 | 23-145 | 30-one hundred sixty | 4425-4485 |
ERF-297-V | 650-980 | -nine.8- -forty nine | eighty four.3-166.eight | 26-160 | 30-a hundred and eighty | 5000-4980 |
ERF-300-V | 650-980 | -9.eight- -49 | 97-192 | 29-178 | 37-two hundred | 5000-4980 |
ERF-350-V | 650-980 | -9.8- -49 | 116-225 | 34-209 | forty five-250 | 5400-5700 |
ERG-300V | 590-730 | -9.eight- -forty nine | 133-193 | 38-184 | 45-220 | 7800-9100 |
ERG-350V | 590-730 | -nine.eight- -49 | 163-231 | forty three-216 | 55-250 | 9500-9470 |
ERG-400V | 590-730 | -nine.8- -forty nine | 199-290 | 52-269 | seventy five-315 | 9900-10130 |
ERG-445V | 590-730 | -9.8- -forty nine | 224.8-326.nine | fifty eight-303 | 75-355 | 9900-10130 |
ERG-450V | 590-730 | -9.eight- -49 | 255-365 | sixty four-335 | seventy five-400 | 11230-11300 |
ERG-500V | 590-730 | -9.eight- -forty nine | 314-452 | seventy eight-412 | 132-450 | 13630-13850 |
ERF-245W | 650-980 | -13.3- -fifty three.3 | 53.five-101 | 21.5-102 | thirty-one hundred ten | 3630-3360 |
ERF-250W | 650-980 | -13.three- -53.three | sixty nine-127 | 26.5-127 | thirty-one hundred sixty | 3985-4115 |
ERF-290W | 650-980 | -thirteen.three- -fifty three.3 | eighty two.6-a hundred and fifty | 30.5-149 | 37-185 | 4340-4580 |
ERF-295W | 650-980 | -13.3- -53.3 | 87-158 | 32-158 | 37-185 | 4440-4580 |
ERF-297W | 650-980 | -thirteen.three- -fifty three.3 | 95-174 | 36-174 | forty five-two hundred | 5230-5130 |
ERF-300W | 650-980 | -thirteen.3- -53.3 | 109-195 | 40-193 | fifty five-220 | 5230-5130 |
ERF-350W | 650-980 | -13.3- -fifty three.three | 129-230 | 50-230 | seventy five-250 | 5840-5670 |
ERG-300W | 590-730 | -13.3- -53.three | 142-197 | fifty two-201 | seventy five-220 | 9100-9000 |
ERF-350W | 590-730 | -13.three- -53.three | 168-234.four | fifty nine-235.five | 75-280 | 9500-9600 |
ERG-400W | 590-730 | -thirteen.3- -53.three | 220-276.6 | 71-292 | ninety-315 | 9900-10130 |
ERG-445W | 590-730 | -thirteen.three- -53.three | 244-294.6 | eighty two-331 | ninety-four hundred | 11230-11300 |
ERG450W | 590-730 | -13.three- -fifty three.three | 275-368.five | ninety one-366 | a hundred and ten-400 | 11230-11300 |
ETRF-250 (240,250) | 650-980 | ninety eight-196 | sixty four.eight-112 | one hundred thirty five-355 | 160-400 | 8700-8600 |
ETRF-295 (245,295) | 650-980 | 98-196 | eighty.eight-139 | 167-439 | 185-500 | 9200-9100 |
ETRF-300 (245,295) | 650-980 | 98-176.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 (300,400) | 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 | 560-1000 | 24200-27600 |
ETRF-250W (240,250) | 650-980 | -53.three–eighty | 72-121 | seventy five.six-121 | ninety-a hundred and sixty | 6100-6470 |
ETRF-295W (245/295) | 650-980 | -53.3–eighty | 93.eight-154 | ninety nine.5-186 | one hundred ten-220 | 7000-6400 |
ETRF-300W (2505/300) | 650-980 | -fifty three.three–eighty | 116-189 | one hundred fifteen-220 | 132-250 | 7750-7760 |
EL81WD | 580-980 | nine.eight-fifty eight.8 | 54.2-130 | 18-151 | forty five-185 | 3595 |
EL82WDB | 580-980 | 9.eight-58.eight | seventy two.eight-161 | 22-191 | 45-220 | 3860 |
EL83WDA | 580-980 | 9.eight-fifty eight.nine | one zero one-213 | 28.five-202 | 45-220 | 4300 |
EL84WDA | 580-980 | 9.8-fifty eight.8 | 129-267 | 35.four-252 | forty five-280 | 4720 |
EL93WDA | 580-730 | nine.eight-49 | 230-329 | 56.four-311 | seventy five-355 | 7765 |
EL94WDA | 580-730 | nine.8-forty nine | 263-373 | sixty four-353 | 75-four hundred | 8130 |
EL95WDA | 490-580 | nine.eight-58.8 | 308-434 | 81.4-414 | 90-450 | 11500 |
EL96WDA | 580 | 58.8 | 381 | 497 | 560 | 11500 |
E397WN | 1000-1650 | forty | 5-9 | |||
E408WN | 870-1650 | forty | 10-22 | |||
E517WN | 980-1580 | 40 | 20-thirty | |||
E520WN | 930-1550 | 40 | 24-forty five | |||
E607WN | 750-1250 | 40 | forty five-76 | |||
E610WN | 750-1250 | forty | 75-one hundred thirty |
Spare areas and construction of our roots blower:
Package deal of our Roots Blower
Pack into iron circumstance, two layer,blower physique and motor in reduced layer, inlet/out silencer and so on in upper layer
Roots blower pack approach very same as iron scenario, just change to Fumigation Free of charge Plywood Scenario
Our manufacturing facility is a specialist manufacturer of Roots blowers which has in excess of twenty years’ experience in equipment
production. It is located in Xihu (West Lake) Dis. East Industrial Park, 50 kilometers to the east of Shan EPT provincial
cash— HangZhou. Our business also has hassle-free 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 foremost solution of our organization is ESR -type Roots Blower. The roots
vacuum pump is a new sort of higher-efficiency roots blower, which is developed independently based mostly on the
domestic and foreign superior technologies. Several patented technologies have been adopted on Roots
Blower, and therefore we have made considerable consequences in power conservation and noise reduction, etc.. So far, our
organization has invested a lot more than thirty,000,000 RMB to introduce this sort of advanced expert gear as
horizontal machining middle, vertical machining heart, two-way CNC surface area planer, CNC lathe, CNC milling
device, CNC planer, plane grinder, cylindrical grinding machine, and three coordinates screening machine.
Aside from, we have taken different steps to standardize the method circulation such as operating and cooperating
with numerous scientific research units, faculties and universities at property and overseas. We also constantly consider to
absorb and increase the domestic advanced manufacturing technologies, so as to promote the upgrading and
optimization of the item and make the item good quality reach the advanced degree at property and overseas.
ESR -kind Roots Blower consists of several sequence this sort of as Three-leaves Sort, Two-leaves Sort and Centrifugal
Sort,which can be additional divided to hundreds of types. The merchandise are widely employed in sewage remedy,
pneumatic conveying,vacuum packaging, aquaculture, foods processing, EPT electrical power, petrochemical, cement,
mining and other industries. Our goods have this kind of rewards as reduced sound, strength preserving, stable quality,
and extended service life, etc.. With the revenue outlets throughout the domestic cash towns, our merchandise offer well all
over the country, and have been exported to North The united states,Russia, Malaysia, Indonesia, Vietnam, South Africa
and some other nations. Getting received the ISO9001 International Top quality Method Certification, we have
proven and enhanced the good quality assurance of the items developing, producing, and set up.
From the process of design and style, investigation and advancement to the concluded merchandise, we have received the total
process managed independently, hence supplying the total foundation and trustworthiness promise for the items balance
and durability. Having a perfect sales community and following-sales service, we supply our consumers with increased-
high quality and far more productive services.All personnel of our firm sincerely welcome the broad masses of friends to
guidebook, and negotiate enterprise with us.
Our Roots Blower Workshop
Doosn Horzitonal Device Centre
The Software of the Roots Blower
Maintenance and inspection
(1) Check out all fasteners and finding pins circumstances whether they are loosening.
(2) Always check no matter whether the leakage phenomenon of the human body.
(three) Shell out focus to lubrication, amount of grease and noises when working,
figure out regardless of whether it operates below the needed situations.
(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 position ≥
190ºC). Substitute the lubricant and grease following first two hundred hours working, and change
yet again right after a moth working. Afterwards, replace the lubricant and grease in accordance to the
surroundings and lubricant (grease) quality propose a suited EPT for three
months.
(five) Usually check out the inlet air filter, clear or exchange the filter in time.
(6) Blower overload sometimes not immediately exhibited, so shell out focus to
the ingestion and exhaust stress, bearing temperature and the recent boost traits
of motor to figure out regardless of whether the blower works usually
(7) Prior to disassembling the blower, the assembling relation and proportions
have to be recorded or measured, make marks on factors to make sure the original
specifications following assembling.
(eight) When freshly device or overhaul, the oil tank must be cleaned before use
and suggest exchange all grease following 8 hrs managing.
Typical failure reason and troubleshooting
No | Failure | Attainable motives | Elimination approaches |
1 | Friction amongst the impeller | (1) Impurities on the impeller, resulting in the gap is way too small (2) Equipment dress in, resulting in a huge backlash (three) The gear is not properly mounted, can not maintain the impeller synchronization (4) Bearing dress in resulting in clearance increasing. | (one) Eliminate grime and examine whether there is hurt areas (2) Modify the gear hole, exchange the gears if the equipment backlash is higher than the average 30% to fifty% (three)Re-assemble the gears, maintain the taper get in touch with location is to seventy five% (four)Change the bearing |
2 | Collision amongst impeller and wall, the impeller leading and casing | (one) Set up hole is not correct (two) working stress is too large, exceeding the specified price (three) Operating temperature is too high (4) Casing or base deformation, positioning supporter failure (5) Bearing axial place is not very good | (one) Change the gap (two) Identify brings about of overloading, reduced the force to the specified price (3) Check out the installation precision and minimize the pipe pressure (4) Examine and restore bearings, and to make certain the clearance (five)Relocation |
three | Temperature also large | (one) Oil in tank is also a lot, too thick or also dirty (2) Filter or silencer is blocked (3)The strain is increased than the specified worth (4)Extreme dress in of the impeller, huge hole (5)Bad ventilation, indoor temperature is higher, resulting in inlet air’s higher temperature (six) The rotating pace is also lower,result in the belt slipping. | (one)Decrease the oil degree or count on oil (two)Remove of blocking objects (3)Decreasing the strain through the blower (four)Fix its clearance (5)Open up vents to lessen room temperature (6) Increase velocity to avert the belt slipping. |
4 | Insufficient circulation | (1) The inlet filter is blocked (2) Impeller wear and the gap boosts too significantly (three) Belt slipping (four) Large imports force reduction (five) Pipeline ventilation leakage | (1) Clear the filter dust and obstruction (2) Mend the gap (3)Tighten the belt and improve the quantity of belts (four)Alter the inlet strain to the specified value (five) Check and fix the pipeline |
five | Oil leaking or oil leaking into the enclosure | (one)Higher tank place lead to leakage from the discharge port (2) Seal use, resulting in shaft oil spills (3) The pressure is greater than the specified value | (1)Minimize the oil level (two)Exchange the seals (three)Obvious the air vents, 2mm diameter faucet is mounted in the center chamber, open up the faucet underneath the wall |
6 | Abnormal vibration and sounds | (one)Bearing clearance exceeds the specified benefit or bearing put on (two) The equipment backlash is way too massive, not in a limited fixed (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 among the impeller and the inlet housing brought on by overheating (six) Unbalance of the impeller induced by fouling or international physique (7) Anchor bolts or other fasteners are loosened | (1)Substitute bearings or bearing seat (2)Reassemble equipment and guarantee backlash (three)Cleaning blower, check the case is ruined (four)Verify the back stress, check the wheel and change hole (five)Check out the filter and again pressure, boost the gap amongst the impeller inlet and the casing (6)Clear the impeller and the casing, to make sure that the impeller clearance function (7) Tighten the anchor bolts and leveling the foundation. |
7 | Motor overload | (one)In contrast with the necessary strain, the strain difference is massive that the back force or the inlet stress is higher (two) When compared with the products specifications, blower circulation is too massive, so its pressure raises (three)Inlet filter is blocked, or outlet pipe is obstructed or blocked (four) Collusion or friction (caught) rotating areas (5) The oil degree is way too substantial (6) Slender V-belt is overheat, vibration is as well large, or pulley is as well tiny | (1) Lessen the strain to the specified price (2) Exhaust the extra gasoline into the ambiance or lessen the blower speed (three) Remove the obstructions (4)Instantly shut down, verify the reason (5) Modify the oil to the correct amount (6) Verify the belt rigidity, and changed it with big diameter pulley. |
Our Service
one. Pre market service two. Right after sell service
a. advocate the appropriate model c. on the internet technological assist,
b. factory tour d. entire life spare areas and techinical support
Gurantee
twelve months gurantee for our roots blowers
/ The use of authentic products manufacturer’s (OEM) component figures or emblems , e.g. CASE® and John Deere® are for reference needs only and for indicating merchandise use and compatibility. Our organization and the shown EPT areas contained herein are not sponsored, accepted, or manufactured by the OEM. /