We – EPG Group the greatest couplings and gears manufacturing facility in China with 5 various branches. For more information: Mobile/whatsapp/telegram/Kakao us at: 0086-13083988828 /
We make all sorts of roots blower, centrifugal blower, Our Main goods are as under:
Type | Diameter | Price of movement | Pressure |
ESR-MJ(Intense Type) | Φ50~Φ300mm | .five~140m³/min | nine.8KPa~ninety eight.8Kpa |
ESR(Ordinary Type) | Φ50~Φ350mm | .five~140m³/min | 9.8KPa~78.4Kpa |
ESR-H(Substantial-force Sort) | Φ50~Φ350mm | .seven~160m³/min | 58.8KPa~98.8Kpa |
ESR-V(Vacuum Pump) | Φ50~Φ350mm | .5~160m³/min | nine.8KPa~53.3Kpa |
EL Sequence | Φ200~Φ600mm | twenty.3~750m³/min | nine.8KPa~58.8Kpa |
Multistage Centrifugal Blower or C-Collection |
Φ250~Φ500mm | 50~500m³/min | nine.8KPa~98Kpa |
ERR-ERG Kind | Φ250~Φ500mm | 120~420m³/min | nine.8KPa~98.8Kpa |
The operating theory of the three-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 gas in the chamber is pushed to attain the
objective of blowing.
Feature of our roots blower:
one. Large adjustment of the air volume
two. Lower Noise
3. Large efficiency
four. Reduced energy cosumption
5. Lengthy time lifestyle
6. Dependable running, straightforward servicing,modest footprint
The parameters of our roots blower:
Sort | Ratary Pace (r/min) |
Pressure Rise (Kpa) |
Capability (m/min) |
Shaft Energy (Kw) |
Motor | Unit Maximn Bodyweight(Kg) |
Energy (Kw) |
||||||
ESR-fifty | 1100-2120 | 9.eight-58.eight | .65-two.fifty eight | .three-3.fifty four | .seventy five-4 | 128-158 |
ESR-sixty five | 1100-2130 | nine.eight-58.8 | .ninety four-three.sixty six | .38-four.forty six | .seventy five-five.5 | one hundred fifty five-185 |
ESR-80 | 1140-1900 | 9.8-fifty eight.eight | 2.34-five.43 | 1.04-7.42 | two.2-11 | a hundred and fifty five-277 |
ESR-a hundred | 1060-1980 | 9.eight-58.eight | four.57-9.05 | one.35-twelve.15 | three-15 | 309-377 |
ESR-one hundred twenty five | 980-1850 | 9.8-fifty eight.eight | 5.35-twelve.four | 1.sixty five-five.19 | five.5-eighteen.5 | 408-451 |
ESR-125C | 970-1830 | nine.8-fifty eight.eight | seven.5-17.fifty seven | 3.two-eighteen.five | 4-22 | 408-451 |
ESR-150 | 810-1730 | 9.eight-58.8 | 10.37-27.15 | 3.eighty four-forty.eighty two | seven.five-45 | 688-848 |
ESR-a hundred seventy five | 970-1520 | nine.8-58.8 | 19.sixty five-36.65 | 7.two-forty five.ninety five | 11-fifty five | 980-1080 |
ESR-200B | 740-1450 | 9.eight-58.8 | 19.65-44.8 | 10.15-60.forty four | 15-75 | 1272-1546 |
ESR-200 | 810-1480 | 9.eight-fifty eight.eight | 27.65-59.2 | 8.05-80,12 | fifteen-ninety | 1272-1546 |
ESR-250B | 1100-1480 | nine.8-58.8 | 54.seventy seven-seventy seven.55 | 19.ninety seven-90.97 | 30-110 | 1490-2454 |
ESR-250 | 990-1480 | 9.eight-fifty eight.eight | 61.4-97.52 | twenty.1-117.3 | thirty-132 | 1490-2454 |
ESR-300 | 990-1480 | nine.eight-fifty eight.8 | 87.1-138.1 | 26.4-167.8 | 37-185 | 3326-3446 |
ESR-350 | 730-1480 | nine.8-58.eight | 78.41-177.31 | fifty five-250 | ||
ESR-50H | 1230-2120 | 63.seven-ninety eight | .forty five-2.02 | 2.05-six.twelve | 3-7.five | a hundred and sixty–a hundred and seventy |
ESR-65H | 1240-2130 | sixty three.7-ninety eight | .78-two.53 | 2.89-seven.fifty five | 4-11 | 198-230 |
ESR-80H | 1140-1900 | 63.seven-ninety eight | 1.eighty two-four.55 | 4.09-10.1 | five.5-15 | 316-326 |
ESR-100H | 1060-1980 | sixty three.7-98 | two.65-8.06 | 6.36-seventeen.2 | 7.five-22 | 398-459 |
ESR-125H | 980-1850 | sixty three.7-98 | 4.sixty four-11.23 | eight.92-24.two | eleven-30 | 544-630 |
ESR-150H | 810-1730 | sixty three.seven-98 | 9.fifty three-25.76 | seventeen.16-sixty five | 18.five-seventy five | 752-1571 |
ESR-200H | 810-1480 | 63.seven-ninety eight | twenty five.34-fifty six.92 | 42.34-one hundred twenty | 55-132 | 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.7-ninety eight | 86.9-134.one | 114.7-270 | 132-280 | 3476-3998 |
ERF-245 | 650-980 | 9.eight-98 | forty seven.5-ninety seven.4 | sixteen-183 | eighteen.5-200 | 3630-3690 |
ERF-250 | 650-980 | nine.eight-98 | sixty one.six-a hundred and twenty.four | 19-227 | 22-250 | 4450-4500 |
ERF-290 | 650-980 | 9.8-78.4 | 92.3-128 | 22-213 | 30-250 | 4890-4710 |
ERF-295 | 650-980 | nine.eight-78.four | 97.three-152.five | 23-227 | thirty-250 | 4890-4880 |
ERF-297 | 650-980 | nine.eight-seventy eight.4 | 87.five-167.six | 26-249 | 30-280 | 5330-5520 |
ERF-three hundred | 650-980 | 9.8-78.4 | one hundred and one.5-188.7 | 29-278 | 37-315 | 5330-5520 |
ERF-350 | 650-980 | nine.eight-78.4 | 126-224.9 | 34-249 | 45-280 | 5210-6470 |
ERG-three hundred | 590-730 | 9.8-ninety eight | 128.three-196 | 38-362 | 45-four hundred | 9440-15710 |
ERG-350 | 590-730 | 9.8-98 | 159.three-231.six | forty three-420 | 55-450 | 9700-1571 |
ERG-four hundred | 590-730 | 9.eight-83.3 | 203.1-290.nine | 52-449 | seventy five-five hundred | 10090-11390 |
ERG-445 | 590-730 | nine.eight-73.five | 229.seven-327.8 | fifty eight-477 | seventy five-560 | 10600-12230 |
ERG-450 | 590-730 | 9.eight-73.five | 262.four-366.2 | 64-496 | 75-560 | 10600-12230 |
ERG-five hundred | 590-730 | 9.eight-63.7 | 327.four-452.4 | 78-529 | ninety-560 | 12790-14620 |
ERF-240-V | 650-980 | -nine.eight- -49 | 38.1-78 | thirteen-76 | 18.five-ninety | 3420-3285 |
ERF-245-V | 650-980 | -9.8- -49 | forty seven.five-ninety seven.four | sixteen-ninety five | 22-a hundred and ten | 3425-3360 |
ERF-250-V | 650-980 | -nine.eight- -forty nine | 63-120 | 19-117 | 22-132 | 3910-3830 |
ERF-290-V | 650-980 | -nine.eight- -forty nine | seventy two.6-a hundred and forty four | 22-136 | 30-160 | 4415-4270 |
ERF-295-V | 650-980 | -nine.eight- -49 | 76.6-152 | 23-a hundred forty five | thirty-a hundred and sixty | 4425-4485 |
ERF-297-V | 650-980 | -nine.eight- -49 | eighty four.three-166.8 | 26-a hundred and sixty | thirty-a hundred and eighty | 5000-4980 |
ERF-three hundred-V | 650-980 | -nine.eight- -49 | ninety seven-192 | 29-178 | 37-200 | 5000-4980 |
ERF-350-V | 650-980 | -9.8- -forty nine | 116-225 | 34-209 | 45-250 | 5400-5700 |
ERG-300V | 590-730 | -nine.eight- -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 | -9.eight- -49 | 199-290 | 52-269 | seventy five-315 | 9900-10130 |
ERG-445V | 590-730 | -nine.8- -49 | 224.eight-326.9 | fifty eight-303 | seventy five-355 | 9900-10130 |
ERG-450V | 590-730 | -nine.eight- -49 | 255-365 | 64-335 | seventy five-four hundred | 11230-11300 |
ERG-500V | 590-730 | -nine.8- -forty nine | 314-452 | seventy eight-412 | 132-450 | 13630-13850 |
ERF-245W | 650-980 | -thirteen.three- -fifty three.3 | fifty three.five-a hundred and one | 21.5-102 | 30-110 | 3630-3360 |
ERF-250W | 650-980 | -13.three- -53.three | sixty nine-127 | 26.five-127 | 30-a hundred and sixty | 3985-4115 |
ERF-290W | 650-980 | -13.3- -fifty three.3 | eighty two.6-one hundred fifty | 30.5-149 | 37-185 | 4340-4580 |
ERF-295W | 650-980 | -13.three- -53.3 | 87-158 | 32-158 | 37-185 | 4440-4580 |
ERF-297W | 650-980 | -13.three- -fifty three.3 | 95-174 | 36-174 | 45-200 | 5230-5130 |
ERF-300W | 650-980 | -thirteen.three- -53.3 | 109-195 | 40-193 | fifty five-220 | 5230-5130 |
ERF-350W | 650-980 | -thirteen.3- -fifty three.3 | 129-230 | fifty-230 | seventy five-250 | 5840-5670 |
ERG-300W | 590-730 | -13.3- -fifty three.3 | 142-197 | 52-201 | 75-220 | 9100-9000 |
ERF-350W | 590-730 | -13.three- -53.three | 168-234.4 | 59-235.5 | seventy five-280 | 9500-9600 |
ERG-400W | 590-730 | -thirteen.three- -53.3 | 220-276.six | 71-292 | ninety-315 | 9900-10130 |
ERG-445W | 590-730 | -thirteen.3- -53.3 | 244-294.6 | eighty two-331 | 90-400 | 11230-11300 |
ERG450W | 590-730 | -thirteen.three- -fifty three.three | 275-368.5 | ninety one-366 | a hundred and ten-400 | 11230-11300 |
ETRF-250 (240,250) |
650-980 | ninety eight-196 | sixty four.eight-112 | 135-355 | 160-four hundred | 8700-8600 |
ETRF-295 (245,295) |
650-980 | 98-196 | eighty.8-139 | 167-439 | 185-five hundred | 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 | ninety eight-137.two | 124-207 | 241-473 | 280-560 | 10700-11110 |
ETRG-four hundred (three hundred,four hundred) |
590-740 | ninety eight-176.4 | 205-273 | 380-773 | 450-900 | 21350-24200 |
ETRG-450 (350,450) |
590-740 | 98-176.4 | 263-428 | 476-955 | 560-one thousand | 24200-27600 |
ETRF-250W (240,250) |
650-980 | -53.3–80 | 72-121 | seventy five.six-121 | ninety-160 | 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 | -53.three–eighty | 116-189 | 115-220 | 132-250 | 7750-7760 |
EL81WD | 580-980 | 9.8-58.8 | 54.two-one hundred thirty | eighteen-151 | forty five-185 | 3595 |
EL82WDB | 580-980 | nine.8-fifty eight.8 | 72.eight-161 | 22-191 | 45-220 | 3860 |
EL83WDA | 580-980 | 9.eight-fifty eight.nine | one hundred and one-213 | 28.5-202 | forty five-220 | 4300 |
EL84WDA | 580-980 | nine.8-58.eight | 129-267 | 35.four-252 | 45-280 | 4720 |
EL93WDA | 580-730 | 9.eight-49 | 230-329 | 56.4-311 | 75-355 | 7765 |
EL94WDA | 580-730 | 9.eight-49 | 263-373 | 64-353 | 75-four hundred | 8130 |
EL95WDA | 490-580 | nine.8-fifty eight.8 | 308-434 | eighty one.4-414 | ninety-450 | 11500 |
EL96WDA | 580 | 58.8 | 381 | 497 | 560 | 11500 |
E397WN | a thousand-1650 | forty | 5-9 | |||
E408WN | 870-1650 | 40 | 10-22 | |||
E517WN | 980-1580 | forty | 20-thirty | |||
E520WN | 930-1550 | 40 | 24-forty five | |||
E607WN | 750-1250 | 40 | forty five-seventy six | |||
E610WN | 750-1250 | forty | 75-130 |
Spare parts and construction of our roots blower:
Package of our Roots Blower
Pack into iron case, two layer,blower body and motor in reduced layer, inlet/out silencer and many others in higher layer
Roots blower pack approach same as iron circumstance, just modify to Fumigation Free of charge Plywood Circumstance
Our manufacturing facility is a professional producer of Roots blowers which has in excess of twenty years’ experience in equipment
manufacturing. It is located in Xihu (West Lake) Dis. East Industrial Park, 50 kilometers to the east of Shan EPT provincial
funds— HangZhou. Our firm also has hassle-free site visitors transportation, as it is fifteen kilometers absent from
Diaozhen City station of HangZhou-HangZhou expressway, and thirty kilometers absent from East HangZhou station of
ZheJiang -ZheJiang expressway.The major merchandise of our firm is ESR -variety Roots Blower. The roots
vacuum pump is a new sort of substantial-effectiveness roots blower, which is created independently primarily based on the
domestic and overseas sophisticated technologies. Several 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 significantly, our
company has invested more than 30,000,000 RMB to introduce these kinds of superior specialist products as
horizontal machining heart, vertical machining middle, two-way CNC surface area planer, CNC lathe, CNC milling
equipment, CNC planer, aircraft grinder, cylindrical grinding device, and three coordinates tests machine.
Aside from, we have taken numerous steps to standardize the approach circulation this kind of as working and cooperating
with a lot of scientific research units, faculties and universities at house and overseas. We also continuously try out to
take in and enhance the domestic sophisticated manufacturing technologies, so as to promote the upgrading and
optimization of the solution and make the merchandise high quality achieve the advanced degree at property and overseas.
ESR -kind Roots Blower involves a number of series this kind of as Three-leaves Variety, Two-leaves Kind and Centrifugal
Type,which can be additional divided to hundreds of types. The items are broadly utilized in sewage therapy,
pneumatic conveying,vacuum packaging, aquaculture, foodstuff processing, EPT energy, petrochemical, cement,
mining and other industries. Our products have this sort of positive aspects as low sound, vitality saving, steady quality,
and long support life, and so on.. With the revenue outlets throughout the domestic funds towns, our products promote properly all
above the country, and have been exported to North The us,Russia, Malaysia, Indonesia, Vietnam, South Africa
and some other nations. Obtaining acquired the ISO9001 Worldwide Quality System Certification, we have
proven and improved the good quality assurance of the merchandise designing, manufacturing, and set up.
From the process of design and style, investigation and improvement to the concluded items, we have acquired the whole
procedure managed independently, thus delivering the entire basis and reliability ensure for the products balance
and toughness. Obtaining a perfect sales community and following-sales support, we supply our customers with larger-
quality and much more successful provider.All workers of our company sincerely welcome the broad masses of buddies to
guide, and negotiate organization with us.
Our Roots Blower Workshop
Doosn Horzitonal Equipment Middle
The Software of the Roots Blower
Routine maintenance and inspection
(1) Check all fasteners and finding pins situations no matter whether they are loosening.
(two) Constantly examine no matter whether the leakage phenomenon of the physique.
(three) Spend consideration to lubrication, quantity of grease and noises when managing,
figure out regardless of whether it operates underneath the necessary 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 (artificial lithium grease penetration 220-250, drop stage ≥
190ºC). Exchange the lubricant and grease after initial two hundred hrs managing, and substitute
once again following a moth working. Later on, replace the lubricant and grease according to the
surroundings and lubricant (grease) top quality propose a suited EPT for a few
months.
(five) Always check the inlet air filter, clear or change the filter in time.
(6) Blower overload sometimes not quickly displayed, so pay out focus to
the ingestion and exhaust pressure, bearing temperature and the existing enhance tendencies
of motor to establish whether or not the blower works normally
(7) Before disassembling the blower, the assembling relation and dimensions
should be recorded or calculated, make marks on elements to guarantee the original
requirements following assembling.
(8) When newly device or overhaul, the oil tank ought to be cleaned prior to use
and suggest exchange all grease soon after 8 hours running.
Typical failure cause and troubleshooting
No | Failure | Possible factors | Elimination techniques |
one | Friction between the impeller |
(one) Impurities on the impeller, ensuing in the gap is as well small (2) Gear use, resulting in a huge backlash (three) The gear is not well mounted, can not preserve the impeller synchronization (four) Bearing dress in resulting in clearance rising. |
(1) Take away dirt and examine regardless of whether there is damage areas (2) Modify the gear gap, change the gears if the equipment backlash is greater than the average 30% to fifty% (three)Re-assemble the gears, maintain the taper make contact with spot is to 75% (4)Change the bearing |
2 | Collision among impeller and wall, the impeller prime and casing |
(one) Installation hole is not correct (2) working pressure is also large, exceeding the specified price (three) Functioning temperature is too high (4) Casing or base deformation, positioning fan failure (5) Bearing axial spot is not good |
(1) Alter the hole (two) Discover causes of overloading, reduced the pressure to the specified price (three) Check the installation accuracy and decrease the pipe pressure (four) Examine and mend bearings, and to make certain the clearance (five)Relocation |
3 | Temperature also higher |
(1) Oil in tank is as well much, too thick or as well dirty (2) Filter or silencer is blocked (3)The strain is increased than the specified price (four)Extreme put on of the impeller, massive hole (five)Poor air flow, indoor temperature is substantial, resulting in inlet air’s higher temperature (6) The rotating pace is as well low,result in the belt slipping. |
(1)Minimize the oil amount or depend on oil (2)Take away of blocking objects (three)Minimizing the force via the blower (four)Fix its clearance (five)Open vents to decrease room temperature (six) Enhance pace to avoid the belt slipping. |
four | Insufficient flow |
(1) The inlet filter is blocked (2) Impeller use and the hole will increase too a lot (3) Belt slipping (four) Big imports pressure decline (5) Pipeline ventilation leakage |
(1) Cleanse the filter dust and obstruction (two) Restore the gap (3)Tighten the belt and enhance the number of belts (4)Modify the inlet pressure to the specified price (five) Check and repair the pipeline |
5 | Oil leaking or oil leaking into the enclosure |
(1)Large tank situation cause leakage from the discharge port (2) Seal put on, resulting in shaft oil spills (3) The pressure is larger than the specified price |
(one)Lessen the oil degree (2)Substitute the seals (3)Obvious the air vents, 2mm diameter faucet is fixed in the center chamber, open the faucet under the wall |
6 | Abnormal vibration and noise |
(1)Bearing clearance exceeds the specified price or bearing put on (2) The equipment backlash is as well big, not in a limited mounted (3) The foreign objects and dust brought on by the impeller and the impeller, the impeller and the housing collision (four) the impeller shaft deformation triggered the collision triggered by overload, (5) Friction amongst the impeller and the inlet housing brought on by overheating (six) Unbalance of the impeller caused by fouling or foreign human body (seven) Anchor bolts or other fasteners are loosened |
(1)Replace bearings or bearing seat (2)Reassemble gear and guarantee backlash (3)Cleansing blower, check out the scenario is destroyed (4)Check out the back again stress, check out the wheel and adjust gap (5)Examine the filter and again force, enhance the gap among the impeller inlet and the casing (six)Clean the impeller and the casing, to ensure that the impeller clearance operate (7) Tighten the anchor bolts and leveling the foundation. |
seven | Motor overload |
(one)When compared with the required stress, the stress big difference is massive that the again strain or the inlet force is large (2) In contrast with the tools requirements, blower flow is as well huge, so its pressure will increase (3)Inlet filter is blocked, or outlet pipe is obstructed or blocked (four) Collusion or friction (trapped) rotating elements (five) The oil degree is too high (six) Slim V-belt is overheat, vibration is too large, or pulley is also tiny |
(one) Reduce the stress to the specified value (2) Exhaust the excess fuel into the ambiance or reduce the blower pace (3) Take away the obstructions (4)Right away shut down, verify the purpose (5) Alter the oil to the right amount (six) Check out the belt rigidity, and replaced it with huge diameter pulley. |
Our Services
1. Pre offer service two. Soon after market service
a. suggest the suited model c. on the internet technological assistance,
b. manufacturing facility tour d. entire life spare components and techinical assist
Gurantee
twelve months gurantee for our roots blowers
/ The use of unique products manufacturer’s (OEM) portion figures or logos , e.g. CASE® and John Deere® are for reference needs only and for indicating solution use and compatibility. Our business and the outlined EPT areas contained herein are not sponsored, approved, or made by the OEM. /