We – EPG Group the largest couplings and gears manufacturing unit in China with 5 various branches. For much more specifics: Mobile/whatsapp/telegram/Kakao us at: 0086-13083988828 /
We make all sorts of roots blower, centrifugal blower, Our Main goods are as below:
Type | Diameter | Fee of flow | Stress |
ESR-MJ(Intensive Sort) | Φ50~Φ300mm | .5~140m³/min | 9.8KPa~ninety eight.8Kpa |
ESR(Ordinary Type) | Φ50~Φ350mm | .five~140m³/min | 9.8KPa~seventy eight.4Kpa |
ESR-H(Large-force Type) | Φ50~Φ350mm | .seven~160m³/min | 58.8KPa~98.8Kpa |
ESR-V(Vacuum Pump) | Φ50~Φ350mm | .5~160m³/min | 9.8KPa~fifty three.3Kpa |
EL Collection | Φ200~Φ600mm | twenty.3~750m³/min | nine.8KPa~58.8Kpa |
Multistage Centrifugal Blower or C-Series |
Φ250~Φ500mm | 50~500m³/min | 9.8KPa~98Kpa |
ERR-ERG Kind | Φ250~Φ500mm | 120~420m³/min | 9.8KPa~98.8Kpa |
The functioning basic principle of the 3-blade roots blower: two a few-lobed rotors are organized in the cavity, and the
suction port and the discharge port are opened on equally sides of the cavity. Through the action of a pair of
synchronous gears, the two rotors rotate in reverse directions 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 accomplish the
goal of blowing.
Function of our roots blower:
one. Big adjustment of the air quantity
two. Lower Sounds
three. High effectiveness
four. Minimal energy cosumption
five. Extended time lifestyle
6. Trustworthy working, easy servicing,modest footprint
The parameters of our roots blower:
Type | Ratary Speed (r/min) |
Pressure Increase (Kpa) |
Capacity (m/min) |
Shaft Energy (Kw) |
Motor | Device Maximn Weight(Kg) |
Power (Kw) |
||||||
ESR-50 | 1100-2120 | nine.8-58.eight | .sixty five-2.58 | .3-3.fifty four | .seventy five-4 | 128-158 |
ESR-sixty five | 1100-2130 | nine.8-fifty eight.eight | .94-three.sixty six | .38-four.46 | .seventy five-5.five | a hundred and fifty five-185 |
ESR-eighty | 1140-1900 | 9.8-fifty eight.eight | two.34-five.43 | one.04-seven.42 | 2.2-eleven | 155-277 |
ESR-one hundred | 1060-1980 | 9.eight-58.eight | 4.57-9.05 | one.35-12.fifteen | 3-fifteen | 309-377 |
ESR-a hundred twenty five | 980-1850 | nine.eight-fifty eight.8 | five.35-12.four | 1.65-five.19 | 5.5-eighteen.five | 408-451 |
ESR-125C | 970-1830 | nine.eight-fifty eight.eight | seven.five-17.57 | three.two-18.five | four-22 | 408-451 |
ESR-one hundred fifty | 810-1730 | 9.eight-fifty eight.8 | ten.37-27.fifteen | three.84-forty.eighty two | 7.5-forty five | 688-848 |
ESR-a hundred seventy five | 970-1520 | nine.8-fifty eight.eight | 19.sixty five-36.65 | 7.two-forty five.95 | 11-55 | 980-1080 |
ESR-200B | 740-1450 | nine.8-fifty eight.eight | 19.65-forty four.8 | 10.fifteen-60.44 | 15-seventy five | 1272-1546 |
ESR-two hundred | 810-1480 | nine.eight-58.8 | 27.sixty five-59.2 | 8.05-80,twelve | fifteen-90 | 1272-1546 |
ESR-250B | 1100-1480 | 9.eight-fifty eight.eight | fifty four.77-seventy seven.55 | 19.ninety seven-90.97 | 30-one hundred ten | 1490-2454 |
ESR-250 | 990-1480 | nine.8-58.8 | 61.4-ninety seven.52 | 20.one-117.3 | 30-132 | 1490-2454 |
ESR-300 | 990-1480 | nine.eight-58.8 | 87.1-138.1 | 26.four-167.eight | 37-185 | 3326-3446 |
ESR-350 | 730-1480 | 9.8-fifty eight.8 | 78.41-177.31 | fifty five-250 | ||
ESR-50H | 1230-2120 | sixty three.7-98 | .45-two.02 | two.05-six.twelve | 3-seven.5 | 160–170 |
ESR-65H | 1240-2130 | sixty three.seven-ninety eight | .78-two.53 | two.89-seven.55 | 4-11 | 198-230 |
ESR-80H | 1140-1900 | 63.seven-98 | 1.eighty two-four.55 | 4.09-ten.1 | five.5-fifteen | 316-326 |
ESR-100H | 1060-1980 | 63.7-98 | 2.sixty five-eight.06 | 6.36-seventeen.2 | 7.five-22 | 398-459 |
ESR-125H | 980-1850 | sixty three.seven-ninety eight | four.sixty four-eleven.23 | eight.92-24.two | 11-30 | 544-630 |
ESR-150H | 810-1730 | sixty three.7-98 | nine.fifty three-twenty five.seventy six | seventeen.sixteen-sixty five | 18.5-75 | 752-1571 |
ESR-200H | 810-1480 | 63.7-98 | twenty five.34-fifty six.ninety two | forty two.34-one hundred twenty | 55-132 | 1426-1934 |
ESR-250H | 990-1480 | 63.7-ninety eight | fifty eight-93.seven | 83.two-205 | 90-220 | 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 | 47.five-97.4 | sixteen-183 | eighteen.five-200 | 3630-3690 |
ERF-250 | 650-980 | nine.eight-98 | sixty one.6-one hundred twenty.four | 19-227 | 22-250 | 4450-4500 |
ERF-290 | 650-980 | 9.eight-seventy eight.4 | ninety two.three-128 | 22-213 | 30-250 | 4890-4710 |
ERF-295 | 650-980 | nine.eight-78.4 | ninety seven.three-152.five | 23-227 | 30-250 | 4890-4880 |
ERF-297 | 650-980 | nine.eight-seventy eight.4 | 87.5-167.6 | 26-249 | 30-280 | 5330-5520 |
ERF-300 | 650-980 | 9.8-seventy eight.4 | one hundred and one.five-188.7 | 29-278 | 37-315 | 5330-5520 |
ERF-350 | 650-980 | 9.8-78.4 | 126-224.9 | 34-249 | forty five-280 | 5210-6470 |
ERG-three hundred | 590-730 | nine.8-ninety eight | 128.3-196 | 38-362 | forty five-400 | 9440-15710 |
ERG-350 | 590-730 | nine.8-98 | 159.3-231.six | forty three-420 | fifty five-450 | 9700-1571 |
ERG-400 | 590-730 | 9.8-eighty three.three | 203.one-290.nine | fifty two-449 | seventy five-five hundred | 10090-11390 |
ERG-445 | 590-730 | 9.8-seventy three.five | 229.7-327.eight | fifty eight-477 | 75-560 | 10600-12230 |
ERG-450 | 590-730 | 9.8-73.5 | 262.4-366.2 | sixty four-496 | seventy five-560 | 10600-12230 |
ERG-five hundred | 590-730 | 9.8-sixty three.seven | 327.four-452.four | 78-529 | ninety-560 | 12790-14620 |
ERF-240-V | 650-980 | -nine.8- -forty nine | 38.1-78 | thirteen-76 | eighteen.5-90 | 3420-3285 |
ERF-245-V | 650-980 | -9.eight- -49 | 47.5-97.four | 16-95 | 22-110 | 3425-3360 |
ERF-250-V | 650-980 | -nine.8- -forty nine | 63-120 | 19-117 | 22-132 | 3910-3830 |
ERF-290-V | 650-980 | -nine.eight- -forty nine | 72.six-one hundred forty four | 22-136 | thirty-160 | 4415-4270 |
ERF-295-V | 650-980 | -nine.8- -forty nine | 76.6-152 | 23-145 | 30-one hundred sixty | 4425-4485 |
ERF-297-V | 650-980 | -9.8- -forty nine | 84.three-166.8 | 26-one hundred sixty | thirty-a hundred and eighty | 5000-4980 |
ERF-300-V | 650-980 | -9.8- -49 | 97-192 | 29-178 | 37-two hundred | 5000-4980 |
ERF-350-V | 650-980 | -9.8- -forty nine | 116-225 | 34-209 | 45-250 | 5400-5700 |
ERG-300V | 590-730 | -9.eight- -forty nine | 133-193 | 38-184 | forty five-220 | 7800-9100 |
ERG-350V | 590-730 | -nine.8- -49 | 163-231 | forty three-216 | 55-250 | 9500-9470 |
ERG-400V | 590-730 | -9.eight- -49 | 199-290 | fifty two-269 | 75-315 | 9900-10130 |
ERG-445V | 590-730 | -nine.8- -forty nine | 224.8-326.nine | fifty eight-303 | 75-355 | 9900-10130 |
ERG-450V | 590-730 | -9.eight- -forty nine | 255-365 | sixty four-335 | 75-four hundred | 11230-11300 |
ERG-500V | 590-730 | -9.8- -49 | 314-452 | 78-412 | 132-450 | 13630-13850 |
ERF-245W | 650-980 | -thirteen.3- -53.three | fifty three.five-101 | 21.5-102 | thirty-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.3- -fifty three.three | eighty two.6-150 | 30.5-149 | 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- -fifty three.three | 95-174 | 36-174 | 45-two hundred | 5230-5130 |
ERF-300W | 650-980 | -13.3- -53.three | 109-195 | forty-193 | 55-220 | 5230-5130 |
ERF-350W | 650-980 | -13.3- -53.three | 129-230 | fifty-230 | 75-250 | 5840-5670 |
ERG-300W | 590-730 | -thirteen.three- -fifty three.3 | 142-197 | fifty two-201 | 75-220 | 9100-9000 |
ERF-350W | 590-730 | -thirteen.three- -fifty three.3 | 168-234.4 | 59-235.5 | 75-280 | 9500-9600 |
ERG-400W | 590-730 | -13.3- -fifty three.three | 220-276.six | 71-292 | ninety-315 | 9900-10130 |
ERG-445W | 590-730 | -thirteen.3- -53.three | 244-294.six | 82-331 | ninety-400 | 11230-11300 |
ERG450W | 590-730 | -thirteen.three- -fifty three.three | 275-368.five | ninety one-366 | a hundred and ten-four hundred | 11230-11300 |
ETRF-250 (240,250) |
650-980 | ninety eight-196 | sixty four.8-112 | a hundred thirty five-355 | 160-400 | 8700-8600 |
ETRF-295 (245,295) |
650-980 | ninety eight-196 | 80.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 | ninety eight-137.two | 124-207 | 241-473 | 280-560 | 10700-11110 |
ETRG-400 (three hundred,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-one thousand | 24200-27600 |
ETRF-250W (240,250) |
650-980 | -53.three–eighty | 72-121 | 75.6-121 | 90-one hundred sixty | 6100-6470 |
ETRF-295W (245/295) |
650-980 | -53.three–eighty | ninety three.8-154 | 99.five-186 | 110-220 | 7000-6400 |
ETRF-300W (2505/300) |
650-980 | -53.3–80 | 116-189 | 115-220 | 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 | nine.8-58.8 | 72.8-161 | 22-191 | forty five-220 | 3860 |
EL83WDA | 580-980 | nine.8-fifty eight.nine | one zero one-213 | 28.5-202 | 45-220 | 4300 |
EL84WDA | 580-980 | nine.8-58.8 | 129-267 | 35.4-252 | forty five-280 | 4720 |
EL93WDA | 580-730 | nine.8-forty nine | 230-329 | 56.4-311 | seventy five-355 | 7765 |
EL94WDA | 580-730 | nine.8-49 | 263-373 | sixty four-353 | 75-four hundred | 8130 |
EL95WDA | 490-580 | 9.8-fifty eight.eight | 308-434 | eighty one.four-414 | ninety-450 | 11500 |
EL96WDA | 580 | 58.8 | 381 | 497 | 560 | 11500 |
E397WN | 1000-1650 | 40 | five-9 | |||
E408WN | 870-1650 | forty | ten-22 | |||
E517WN | 980-1580 | 40 | 20-thirty | |||
E520WN | 930-1550 | forty | 24-45 | |||
E607WN | 750-1250 | forty | forty five-76 | |||
E610WN | 750-1250 | forty | seventy five-130 |
Spare areas and structure of our roots blower:
Package deal of our Roots Blower
Pack into iron case, two layer,blower entire body and motor in reduced layer, inlet/out silencer etc in higher layer
Roots blower pack technique very same as iron circumstance, just alter to Fumigation Totally free Plywood Situation
Our factory is a specialist maker of Roots blowers which has over 20 years’ experience in machinery
production. It is situated in Xihu (West Lake) Dis. East Industrial Park, fifty kilometers to the east of Shan EPT provincial
capital— HangZhou. Our organization also has hassle-free traffic transportation, as it is 15 kilometers away from
Diaozhen Town station of HangZhou-HangZhou expressway, and 30 kilometers away from East HangZhou station of
ZheJiang -ZheJiang expressway.The foremost solution of our company is ESR -type Roots Blower. The roots
vacuum pump is a new kind of high-efficiency roots blower, which is created independently based on the
domestic and international sophisticated technologies. Many patented technologies have been adopted on Roots
Blower, and thus we have manufactured significant outcomes in power conservation and noise reduction, and so forth.. So far, our
business has invested far more than 30,000,000 RMB to introduce these kinds of advanced specialist gear as
horizontal machining center, vertical machining heart, two-way CNC area planer, CNC lathe, CNC milling
device, CNC planer, aircraft grinder, cylindrical grinding device, and three coordinates testing machine.
Besides, we have taken various steps to standardize the method movement such as working and cooperating
with a lot of scientific research units, schools and universities at residence and overseas. We also continuously try out to
soak up and increase the domestic innovative manufacturing technologies, so as to encourage the upgrading and
optimization of the item and make the merchandise quality get to the innovative amount at home and abroad.
ESR -variety Roots Blower contains several sequence this sort of as Three-leaves Variety, Two-leaves Variety and Centrifugal
Type,which can be even more divided to hundreds of kinds. The products are extensively employed in sewage treatment,
pneumatic conveying,vacuum packaging, aquaculture, foods processing, EPT electricity, petrochemical, cement,
mining and other industries. Our goods have such advantages as lower sounds, strength saving, stable high quality,
and long provider existence, and so on.. With the sales outlets throughout the domestic funds towns, our items sell well all
more than the country, and have been exported to North The us,Russia, Malaysia, Indonesia, Vietnam, South Africa
and some other international locations. Obtaining acquired the ISO9001 Worldwide Quality System Certification, we have
set up and enhanced the quality assurance of the merchandise creating, manufacturing, and installation.
From the method of layout, analysis and development to the finished items, we have obtained the total
approach controlled independently, therefore supplying the entire basis and dependability promise for the goods stability
and toughness. Having a perfect income community and after-sales provider, we provide our buyers with greater-
high quality and more efficient support.All personnel of our business sincerely welcome the broad masses of friends to
guidebook, and negotiate enterprise with us.
Our Roots Blower Workshop
Doosn Horzitonal Equipment Heart
The Software of the Roots Blower
Servicing and inspection
(1) Verify all fasteners and locating pins circumstances whether or not they are loosening.
(2) Always examine whether or not the leakage phenomenon of the body.
(3) Shell out consideration to lubrication, quantity of grease and noises when running,
figure out regardless of whether it performs beneath the essential problems.
(4) Lubricant & grease: The lubricant is for medium load industrial equipment oil
(quality 220, kinematic viscosity of 198 ~ 242mm2 / s 40ºC, flash position ≥ 200ºC)
The grease is butter (artificial lithium grease penetration 220-250, fall point ≥
190ºC). Substitute the lubricant and grease after very first two hundred hrs operating, and exchange
yet again after a moth operating. Afterwards, replace the lubricant and grease according to the
surroundings and lubricant (grease) high quality propose a suited EPT for three
months.
(five) Usually verify the inlet air filter, clean or substitute the filter in time.
(six) Blower overload often not immediately displayed, so pay attention to
the intake and exhaust strain, bearing temperature and the current increase trends
of motor to figure out regardless of whether the blower operates generally
(7) Just before disassembling the blower, the assembling relation and dimensions
have to be recorded or calculated, make marks on factors to guarantee the first
needs after assembling.
(8) When recently equipment or overhaul, the oil tank need to be cleaned just before use
and suggest replace all grease right after 8 hours managing.
Frequent failure reason and troubleshooting
No | Failure | Possible reasons | Elimination methods |
one | Friction among the impeller |
(one) Impurities on the impeller, resulting in the hole is way too small (two) Equipment put on, ensuing in a big backlash (three) The gear is not properly fixed, can not sustain the impeller synchronization (4) Bearing put on resulting in clearance rising. |
(1) Eliminate grime and verify whether there is injury areas (two) Adjust the equipment gap, replace the gears if the gear backlash is increased than the common 30% to fifty% (3)Re-assemble the gears, hold the taper make contact with location is to 75% (4)Substitute the bearing |
two | Collision among impeller and wall, the impeller best and casing |
(1) Installation hole is not correct (two) functioning strain is too high, exceeding the specified value (three) Running temperature is too higher (4) Casing or foundation deformation, positioning supporter failure (five) Bearing axial area is not excellent |
(1) Change the hole (two) Recognize leads to of overloading, lowered the stress to the specified value (3) Examine the installation precision and lessen the pipe tension (four) Check out and fix bearings, and to make certain the clearance (5)Relocation |
3 | Temperature too large |
(1) Oil in tank is too a lot, as well thick or as well dirty (2) Filter or silencer is blocked (three)The stress is increased than the specified worth (four)Extreme dress in of the impeller, massive hole (five)Poor air flow, indoor temperature is substantial, ensuing in inlet air’s high temperature (six) The rotating velocity is also reduced,end result in the belt slipping. |
(one)Minimize the oil level or rely on oil (two)Take away of blocking objects (three)Decreasing the strain via the blower (4)Mend its clearance (five)Open vents to lessen place temperature (6) Increase pace to avoid the belt slipping. |
four | Insufficient circulation |
(one) The inlet filter is blocked (two) Impeller use and the hole increases as well considerably (three) Belt slipping (4) Large imports strain decline (five) Pipeline ventilation leakage |
(1) Thoroughly clean the filter dust and obstruction (2) Mend the hole (3)Tighten the belt and boost the amount of belts (four)Change the inlet stress to the specified price (five) Check out and mend the pipeline |
five | Oil leaking or oil leaking into the enclosure |
(one)Large tank place lead to leakage from the discharge port (2) Seal wear, resulting in shaft oil spills (three) The strain is larger than the specified worth |
(1)Decrease the oil level (2)Substitute the seals (three)Clear the air vents, 2mm diameter faucet is fastened in the middle chamber, open up the faucet below the wall |
6 | Abnormal vibration and sounds |
(one)Bearing clearance exceeds the specified price or bearing wear (two) The gear backlash is as well large, not in a restricted mounted (3) The overseas objects and dust triggered by the impeller and the impeller, the impeller and the housing collision (4) the impeller shaft deformation triggered the collision induced by overload, (5) Friction amongst the impeller and the inlet housing induced by overheating (6) Unbalance of the impeller brought on by fouling or international entire body (seven) Anchor bolts or other fasteners are loosened |
(1)Replace bearings or bearing seat (2)Reassemble gear and ensure backlash (three)Cleansing blower, verify the case is ruined (4)Verify the again pressure, check out the wheel and modify hole (five)Check the filter and back strain, increase the gap in between the impeller inlet and the casing (six)Clean the impeller and the casing, to make certain that the impeller clearance work (7) Tighten the anchor bolts and leveling the foundation. |
7 | Motor overload |
(1)When compared with the needed force, the stress big difference is big that the again strain or the inlet pressure is substantial (two) Compared with the equipment requirements, blower circulation is way too huge, so its pressure raises (three)Inlet filter is blocked, or outlet pipe is obstructed or blocked (4) Collusion or friction (stuck) rotating areas (5) The oil level is as well substantial (six) Slim V-belt is overheat, vibration is as well big, or pulley is too little |
(1) Lessen the strain to the specified value (two) Exhaust the excess fuel into the ambiance or minimize the blower pace (three) Get rid of the obstructions (four)Instantly shut down, examine the cause (five) Modify the oil to the proper stage (six) Verify the belt pressure, and replaced it with massive diameter pulley. |
Our Provider
one. Pre offer service two. Soon after promote service
a. suggest the appropriate model c. on the web technological support,
b. manufacturing facility tour d. whole life spare parts and techinical help
Gurantee
twelve months gurantee for our roots blowers
/ The use of original equipment manufacturer’s (OEM) element quantities or emblems , e.g. CASE® and John Deere® are for reference reasons only and for indicating solution use and compatibility. Our organization and the shown EPT elements contained herein are not sponsored, accredited, or produced by the OEM. /