We – EPG Team the largest couplings and gears manufacturing facility in China with five different branches. For a lot more particulars: Mobile/whatsapp/telegram/Kakao us at: 0086-13083988828 /
We make all types of roots blower, centrifugal blower, Our Main merchandise are as under:
Variety | Diameter | Charge of circulation | Pressure |
ESR-MJ(Intense Type) | Φ50~Φ300mm | .5~140m³/min | nine.8KPa~98.8Kpa |
ESR(Regular Type) | Φ50~Φ350mm | .5~140m³/min | nine.8KPa~78.4Kpa |
ESR-H(High-force Type) | Φ50~Φ350mm | .seven~160m³/min | fifty eight.8KPa~98.8Kpa |
ESR-V(Vacuum Pump) | Φ50~Φ350mm | .5~160m³/min | nine.8KPa~fifty three.3Kpa |
EL Series | Φ200~Φ600mm | 20.three~750m³/min | nine.8KPa~58.8Kpa |
Multistage Centrifugal Blower or C-Collection |
Φ250~Φ500mm | fifty~500m³/min | 9.8KPa~98Kpa |
ERR-ERG Kind | Φ250~Φ500mm | a hundred and twenty~420m³/min | 9.8KPa~ninety eight.8Kpa |
The functioning theory of the a few-blade roots blower: two three-lobed rotors are arranged in the cavity, and the
suction port and the discharge port are opened on the two sides of the cavity. Through 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 gasoline in the chamber is pushed to obtain the
goal of blowing.
Characteristic of our roots blower:
one. Massive adjustment of the air volume
2. Low Sounds
3. Substantial performance
4. Reduced strength cosumption
5. Extended time life
6. Dependable working, simple routine maintenance,small footprint
The parameters of our roots blower:
Kind | Ratary Speed (r/min) |
Pressure Rise (Kpa) |
Capability (m/min) |
Shaft Electrical power (Kw) |
Motor | Unit Maximn Bodyweight(Kg) |
Electricity (Kw) |
||||||
ESR-fifty | 1100-2120 | 9.8-fifty eight.eight | .sixty five-two.58 | .3-3.fifty four | .seventy five-four | 128-158 |
ESR-sixty five | 1100-2130 | nine.8-58.8 | .94-three.66 | .38-four.46 | .75-5.5 | one hundred fifty five-185 |
ESR-eighty | 1140-1900 | 9.eight-58.eight | two.34-five.43 | one.04-seven.forty two | two.2-eleven | a hundred and fifty five-277 |
ESR-a hundred | 1060-1980 | nine.8-58.eight | 4.fifty seven-nine.05 | one.35-twelve.fifteen | 3-15 | 309-377 |
ESR-one hundred twenty five | 980-1850 | nine.eight-58.8 | 5.35-twelve.4 | 1.sixty five-five.19 | 5.5-eighteen.five | 408-451 |
ESR-125C | 970-1830 | 9.8-fifty eight.8 | seven.five-17.fifty seven | three.two-eighteen.five | 4-22 | 408-451 |
ESR-150 | 810-1730 | nine.8-fifty eight.eight | ten.37-27.fifteen | three.84-40.eighty two | 7.5-forty five | 688-848 |
ESR-one hundred seventy five | 970-1520 | 9.eight-fifty eight.eight | 19.sixty five-36.65 | 7.2-forty five.ninety five | 11-55 | 980-1080 |
ESR-200B | 740-1450 | nine.eight-fifty eight.8 | 19.sixty five-forty four.8 | 10.fifteen-60.forty four | 15-seventy five | 1272-1546 |
ESR-two hundred | 810-1480 | nine.8-fifty eight.8 | 27.65-59.2 | eight.05-80,12 | fifteen-ninety | 1272-1546 |
ESR-250B | 1100-1480 | 9.8-fifty eight.8 | 54.seventy seven-77.55 | 19.ninety seven-ninety.ninety seven | 30-a hundred and ten | 1490-2454 |
ESR-250 | 990-1480 | 9.8-58.eight | sixty one.4-97.52 | 20.1-117.3 | 30-132 | 1490-2454 |
ESR-300 | 990-1480 | nine.eight-58.eight | 87.one-138.1 | 26.4-167.eight | 37-185 | 3326-3446 |
ESR-350 | 730-1480 | 9.eight-fifty eight.8 | seventy eight.41-177.31 | 55-250 | ||
ESR-50H | 1230-2120 | sixty three.7-ninety eight | .forty five-2.02 | two.05-six.12 | three-seven.5 | a hundred and sixty–a hundred and seventy |
ESR-65H | 1240-2130 | 63.seven-ninety eight | .78-2.53 | 2.89-7.55 | four-eleven | 198-230 |
ESR-80H | 1140-1900 | sixty three.7-98 | one.82-4.fifty five | four.09-ten.one | 5.5-fifteen | 316-326 |
ESR-100H | 1060-1980 | 63.seven-98 | two.65-eight.06 | six.36-17.two | 7.five-22 | 398-459 |
ESR-125H | 980-1850 | 63.seven-ninety eight | four.64-eleven.23 | 8.92-24.two | eleven-thirty | 544-630 |
ESR-150H | 810-1730 | 63.7-ninety eight | 9.fifty three-twenty five.seventy six | seventeen.16-sixty five | 18.five-seventy five | 752-1571 |
ESR-200H | 810-1480 | sixty three.seven-ninety eight | twenty five.34-fifty six.ninety two | forty two.34-120 | fifty five-132 | 1426-1934 |
ESR-250H | 990-1480 | 63.seven-98 | 58-ninety three.7 | eighty three.2-205 | ninety-220 | 2980-3468 |
ESR300H | 990-1480 | sixty three.seven-98 | 86.nine-134.1 | 114.7-270 | 132-280 | 3476-3998 |
ERF-245 | 650-980 | nine.8-ninety eight | forty seven.5-97.four | sixteen-183 | eighteen.five-two hundred | 3630-3690 |
ERF-250 | 650-980 | nine.8-98 | sixty one.6-120.4 | 19-227 | 22-250 | 4450-4500 |
ERF-290 | 650-980 | nine.8-78.four | 92.3-128 | 22-213 | thirty-250 | 4890-4710 |
ERF-295 | 650-980 | nine.8-seventy eight.four | ninety seven.three-152.five | 23-227 | 30-250 | 4890-4880 |
ERF-297 | 650-980 | 9.eight-seventy eight.4 | 87.5-167.six | 26-249 | 30-280 | 5330-5520 |
ERF-three hundred | 650-980 | 9.8-78.4 | one zero one.five-188.7 | 29-278 | 37-315 | 5330-5520 |
ERF-350 | 650-980 | 9.eight-seventy eight.4 | 126-224.nine | 34-249 | 45-280 | 5210-6470 |
ERG-three hundred | 590-730 | 9.eight-98 | 128.three-196 | 38-362 | forty five-400 | 9440-15710 |
ERG-350 | 590-730 | 9.eight-98 | 159.three-231.six | 43-420 | 55-450 | 9700-1571 |
ERG-four hundred | 590-730 | 9.8-eighty three.three | 203.1-290.nine | fifty two-449 | 75-500 | 10090-11390 |
ERG-445 | 590-730 | 9.8-seventy three.5 | 229.seven-327.8 | 58-477 | 75-560 | 10600-12230 |
ERG-450 | 590-730 | nine.eight-seventy three.five | 262.4-366.2 | sixty four-496 | seventy five-560 | 10600-12230 |
ERG-500 | 590-730 | nine.8-63.7 | 327.four-452.4 | seventy eight-529 | 90-560 | 12790-14620 |
ERF-240-V | 650-980 | -9.8- -49 | 38.1-78 | thirteen-seventy six | 18.five-90 | 3420-3285 |
ERF-245-V | 650-980 | -9.eight- -49 | 47.five-ninety seven.four | 16-95 | 22-110 | 3425-3360 |
ERF-250-V | 650-980 | -nine.eight- -forty nine | sixty three-one hundred twenty | 19-117 | 22-132 | 3910-3830 |
ERF-290-V | 650-980 | -9.8- -forty nine | seventy two.six-one hundred forty four | 22-136 | 30-a hundred and sixty | 4415-4270 |
ERF-295-V | 650-980 | -nine.eight- -49 | 76.6-152 | 23-a hundred forty five | 30-160 | 4425-4485 |
ERF-297-V | 650-980 | -9.eight- -49 | 84.three-166.eight | 26-a hundred and sixty | thirty-180 | 5000-4980 |
ERF-three hundred-V | 650-980 | -nine.8- -forty nine | 97-192 | 29-178 | 37-two hundred | 5000-4980 |
ERF-350-V | 650-980 | -9.eight- -49 | 116-225 | 34-209 | 45-250 | 5400-5700 |
ERG-300V | 590-730 | -9.eight- -49 | 133-193 | 38-184 | 45-220 | 7800-9100 |
ERG-350V | 590-730 | -nine.8- -forty nine | 163-231 | 43-216 | fifty five-250 | 9500-9470 |
ERG-400V | 590-730 | -nine.8- -forty nine | 199-290 | 52-269 | 75-315 | 9900-10130 |
ERG-445V | 590-730 | -nine.8- -49 | 224.8-326.9 | 58-303 | 75-355 | 9900-10130 |
ERG-450V | 590-730 | -9.eight- -49 | 255-365 | 64-335 | 75-400 | 11230-11300 |
ERG-500V | 590-730 | -9.eight- -forty nine | 314-452 | seventy eight-412 | 132-450 | 13630-13850 |
ERF-245W | 650-980 | -13.three- -fifty three.three | 53.5-one zero one | 21.five-102 | thirty-a hundred and ten | 3630-3360 |
ERF-250W | 650-980 | -thirteen.three- -fifty three.three | sixty nine-127 | 26.five-127 | 30-a hundred and sixty | 3985-4115 |
ERF-290W | 650-980 | -13.3- -53.three | 82.6-a hundred and fifty | 30.five-149 | 37-185 | 4340-4580 |
ERF-295W | 650-980 | -thirteen.3- -fifty three.3 | 87-158 | 32-158 | 37-185 | 4440-4580 |
ERF-297W | 650-980 | -thirteen.three- -53.3 | 95-174 | 36-174 | forty five-two hundred | 5230-5130 |
ERF-300W | 650-980 | -thirteen.three- -53.three | 109-195 | forty-193 | fifty five-220 | 5230-5130 |
ERF-350W | 650-980 | -thirteen.three- -fifty three.three | 129-230 | 50-230 | seventy five-250 | 5840-5670 |
ERG-300W | 590-730 | -thirteen.3- -fifty three.3 | 142-197 | 52-201 | seventy five-220 | 9100-9000 |
ERF-350W | 590-730 | -thirteen.3- -53.3 | 168-234.four | 59-235.five | seventy five-280 | 9500-9600 |
ERG-400W | 590-730 | -13.3- -53.three | 220-276.6 | 71-292 | 90-315 | 9900-10130 |
ERG-445W | 590-730 | -thirteen.three- -fifty three.3 | 244-294.6 | eighty two-331 | 90-four hundred | 11230-11300 |
ERG450W | 590-730 | -13.3- -53.three | 275-368.5 | 91-366 | one hundred ten-400 | 11230-11300 |
ETRF-250 (240,250) |
650-980 | ninety eight-196 | sixty four.8-112 | a hundred thirty five-355 | 160-four hundred | 8700-8600 |
ETRF-295 (245,295) |
650-980 | 98-196 | 80.8-139 | 167-439 | 185-500 | 9200-9100 |
ETRF-three hundred (245,295) |
650-980 | ninety eight-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 (300,four hundred) |
590-740 | ninety eight-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–80 | 72-121 | seventy five.six-121 | ninety-160 | 6100-6470 |
ETRF-295W (245/295) |
650-980 | -53.3–eighty | 93.eight-154 | ninety nine.five-186 | 110-220 | 7000-6400 |
ETRF-300W (2505/three hundred) |
650-980 | -53.3–80 | 116-189 | a hundred and fifteen-220 | 132-250 | 7750-7760 |
EL81WD | 580-980 | nine.eight-fifty eight.8 | 54.two-130 | 18-151 | forty five-185 | 3595 |
EL82WDB | 580-980 | nine.eight-58.eight | 72.eight-161 | 22-191 | forty five-220 | 3860 |
EL83WDA | 580-980 | nine.eight-58.nine | one zero one-213 | 28.5-202 | 45-220 | 4300 |
EL84WDA | 580-980 | nine.eight-fifty eight.eight | 129-267 | 35.four-252 | 45-280 | 4720 |
EL93WDA | 580-730 | nine.eight-forty nine | 230-329 | 56.4-311 | seventy five-355 | 7765 |
EL94WDA | 580-730 | nine.eight-forty nine | 263-373 | 64-353 | seventy five-400 | 8130 |
EL95WDA | 490-580 | 9.8-58.8 | 308-434 | eighty one.4-414 | ninety-450 | 11500 |
EL96WDA | 580 | 58.eight | 381 | 497 | 560 | 11500 |
E397WN | 1000-1650 | 40 | 5-9 | |||
E408WN | 870-1650 | forty | ten-22 | |||
E517WN | 980-1580 | 40 | twenty-thirty | |||
E520WN | 930-1550 | 40 | 24-forty five | |||
E607WN | 750-1250 | forty | 45-seventy six | |||
E610WN | 750-1250 | 40 | 75-one hundred thirty |
Spare parts and composition of our roots blower:
Bundle of our Roots Blower
Pack into iron case, two layer,blower entire body and motor in lower layer, inlet/out silencer and so on in higher layer
Roots blower pack strategy very same as iron circumstance, just modify to Fumigation Free of charge Plywood Scenario
Our manufacturing facility is a expert producer of Roots blowers which has in excess of twenty years’ experience in machinery
producing. It is found in Xihu (West Lake) Dis. East Industrial Park, fifty kilometers to the east of Shan EPT provincial
money— HangZhou. Our company also has convenient site visitors transportation, as it is 15 kilometers absent from
Diaozhen Town station of HangZhou-HangZhou expressway, and thirty kilometers away from East HangZhou station of
ZheJiang -ZheJiang expressway.The foremost merchandise of our organization is ESR -sort Roots Blower. The roots
vacuum pump is a new variety of higher-effectiveness roots blower, which is created independently dependent on the
domestic and international sophisticated systems. Many patented technologies have been adopted on Roots
Blower, and as a result we have made significant results in power conservation and noise reduction, and many others.. So considerably, our
firm has invested more than thirty,000,000 RMB to introduce this sort of advanced professional gear as
horizontal machining center, vertical machining centre, two-way CNC area planer, CNC lathe, CNC milling
equipment, CNC planer, airplane grinder, cylindrical grinding equipment, and three coordinates screening device.
Apart from, we have taken numerous steps to standardize the method flow these kinds of as doing work and cooperating
with several scientific research units, faculties and universities at property and overseas. We also repeatedly try out to
take up and enhance the domestic advanced manufacturing systems, so as to promote the upgrading and
optimization of the product and make the item high quality reach the sophisticated stage at property and abroad.
ESR -sort Roots Blower consists of several collection this sort of as A few-leaves Variety, Two-leaves Sort and Centrifugal
Sort,which can be even more divided to hundreds of kinds. The goods are broadly used in sewage remedy,
pneumatic conveying,vacuum packaging, aquaculture, foods processing, EPT electrical power, petrochemical, cement,
mining and other industries. Our goods have such advantages as low sounds, energy preserving, secure good quality,
and lengthy service existence, and so forth.. With the product sales outlets throughout the domestic cash metropolitan areas, our products promote nicely 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. Having received the ISO9001 Worldwide Good quality Method Certification, we have
set up and improved the good quality assurance of the products planning, producing, and installation.
From the method of style, investigation and improvement to the concluded items, we have got the whole
approach managed independently, hence providing the total foundation and reliability guarantee for the products security
and longevity. Having a perfect income network and right after-income services, we give our customers with greater-
good quality and far more effective support.All employees of our company sincerely welcome the broad masses of friends to
guide, and negotiate organization with us.
Our Roots Blower Workshop
Doosn Horzitonal Machine Center
The Application of the Roots Blower
Servicing and inspection
(1) Check all fasteners and finding pins problems no matter whether they are loosening.
(two) Often check whether the leakage phenomenon of the physique.
(three) Pay attention to lubrication, amount of grease and noises when running,
decide whether it works beneath the essential conditions.
(four) Lubricant & grease: The lubricant is for medium load industrial equipment oil
(grade 220, kinematic viscosity of 198 ~ 242mm2 / s 40ºC, flash stage ≥ 200ºC)
The grease is butter (artificial lithium grease penetration 220-250, drop stage ≥
190ºC). Exchange the lubricant and grease soon after first 200 several hours running, and substitute
once more right after a moth running. Later on, substitute the lubricant and grease in accordance to the
setting and lubricant (grease) good quality suggest a suited EPT for 3
months.
(five) Often check out the inlet air filter, clear or substitute the filter in time.
(6) Blower overload sometimes not right away shown, so pay out focus to
the consumption and exhaust strain, bearing temperature and the present boost traits
of motor to determine regardless of whether the blower operates generally
(7) Ahead of disassembling the blower, the assembling relation and proportions
need to be recorded or measured, make marks on components to make certain the authentic
requirements right after assembling.
(eight) When freshly device or overhaul, the oil tank need to be cleaned just before use
and propose replace all grease after 8 several hours managing.
Common failure explanation and troubleshooting
No | Failure | Feasible motives | Elimination approaches |
one | Friction in between the impeller |
(1) Impurities on the impeller, resulting in the gap is too little (2) Gear put on, resulting in a huge backlash (3) The equipment is not properly mounted, can not preserve the impeller synchronization (four) Bearing use resulting in clearance rising. |
(1) Remove grime and check out regardless of whether there is hurt components (two) Change the equipment gap, exchange the gears if the equipment backlash is increased than the regular 30% to 50% (three)Re-assemble the gears, keep the taper get in touch with location is to seventy five% (4)Substitute the bearing |
two | Collision among impeller and wall, the impeller best and casing |
(one) Set up hole is not appropriate (two) operating stress is also substantial, exceeding the specified price (three) Operating temperature is way too substantial (four) Casing or base deformation, positioning enthusiast failure (5) Bearing axial place is not excellent |
(one) Modify the hole (2) Discover causes of overloading, decreased the strain to the specified price (3) Verify the installation accuracy and minimize the pipe rigidity (four) Check out and mend bearings, and to make certain the clearance (5)Relocation |
three | Temperature as well substantial |
(1) Oil in tank is too significantly, also thick or too soiled (two) Filter or silencer is blocked (3)The strain is greater than the specified benefit (4)Abnormal wear of the impeller, large hole (five)Bad ventilation, indoor temperature is substantial, resulting in inlet air’s substantial temperature (six) The rotating speed is way too lower,end result in the belt slipping. |
(1)Reduce the oil stage or depend on oil (two)Get rid of of blocking objects (3)Minimizing the pressure by way of the blower (4)Restore its clearance (5)Open up vents to decrease area temperature (6) Improve speed to avoid the belt slipping. |
four | Inadequate circulation |
(one) The inlet filter is blocked (two) Impeller use and the gap raises as well much (3) Belt slipping (4) Large imports pressure decline (five) Pipeline air flow leakage |
(1) Clean the filter dust and obstruction (2) Repair the hole (three)Tighten the belt and enhance the amount of belts (four)Alter the inlet strain to the specified benefit (5) Check out and restore the pipeline |
five | Oil leaking or oil leaking into the enclosure |
(1)Substantial tank position result in leakage from the discharge port (two) Seal use, resulting in shaft oil spills (3) The strain is increased than the specified price |
(one)Decrease the oil level (two)Exchange the seals (3)Very clear the air vents, 2mm diameter faucet is fixed in the middle chamber, open up the faucet under the wall |
6 | Abnormal vibration and sound |
(one)Bearing clearance exceeds the specified benefit or bearing use (2) The equipment backlash is as well huge, not in a limited set (3) The foreign objects and dust induced by the impeller and the impeller, the impeller and the housing collision (4) the impeller shaft deformation caused the collision brought on by overload, (five) Friction amongst the impeller and the inlet housing brought on by overheating (6) Unbalance of the impeller induced by fouling or overseas body (7) Anchor bolts or other fasteners are loosened |
(1)Substitute bearings or bearing seat (2)Reassemble gear and make certain backlash (3)Cleansing blower, check the scenario is broken (4)Examine the back force, check the wheel and change gap (5)Examine the filter and back again strain, boost the gap in between the impeller inlet and the casing (6)Thoroughly clean the impeller and the casing, to make certain that the impeller clearance operate (seven) Tighten the anchor bolts and leveling the base. |
seven | Motor overload |
(one)When compared with the required strain, the force distinction is massive that the back again stress or the inlet pressure is high (2) In comparison with the equipment demands, blower flow is as well big, so its stress boosts (3)Inlet filter is blocked, or outlet pipe is obstructed or blocked (4) Collusion or friction (caught) rotating areas (five) The oil stage is also high (six) Slim V-belt is overheat, vibration is way too massive, or pulley is also small |
(1) Minimize the strain to the specified value (2) Exhaust the surplus gasoline into the atmosphere or minimize the blower speed (3) Take away the obstructions (4)Immediately shut down, examine the cause (five) Change the oil to the appropriate stage (6) Verify the belt pressure, and replaced it with big diameter pulley. |
Our Provider
1. Pre market service two. Right after offer service
a. advise the suitable model c. online technological support,
b. manufacturing facility tour d. whole life spare parts and techinical assist
Gurantee
12 months gurantee for our roots blowers
/ The use of first products manufacturer’s (OEM) part figures or emblems , e.g. CASE® and John Deere® are for reference functions only and for indicating solution use and compatibility. Our business and the outlined EPT elements contained herein are not sponsored, accepted, or produced by the OEM. /