We – EPG Group the biggest couplings and gears manufacturing facility in China with five distinct branches. For far more details: Cell/whatsapp/telegram/Kakao us at: 0086-13083988828 /
We make all sorts of roots blower, centrifugal blower, Our Major products are as underneath:
Type | Diameter | Fee of movement | Force |
ESR-MJ(Intense Kind) | Φ50~Φ300mm | .5~140m³/min | nine.8KPa~ninety eight.8Kpa |
ESR(Ordinary Variety) | Φ50~Φ350mm | .five~140m³/min | 9.8KPa~78.4Kpa |
ESR-H(Higher-strain Type) | Φ50~Φ350mm | .7~160m³/min | fifty eight.8KPa~ninety eight.8Kpa |
ESR-V(Vacuum Pump) | Φ50~Φ350mm | .5~160m³/min | 9.8KPa~53.3Kpa |
EL Collection | Φ200~Φ600mm | twenty.three~750m³/min | 9.8KPa~58.8Kpa |
Multistage Centrifugal Blower or C-Collection |
Φ250~Φ500mm | fifty~500m³/min | 9.8KPa~98Kpa |
ERR-ERG Kind | Φ250~Φ500mm | 120~420m³/min | 9.8KPa~ninety eight.8Kpa |
The working principle 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 each sides of the cavity. By means of the motion 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 obtain the
purpose of blowing.
Characteristic of our roots blower:
1. Huge adjustment of the air volume
two. Low Sounds
three. Higher performance
four. Lower energy cosumption
5. Lengthy time existence
6. Dependable working, simple maintenance,tiny footprint
The parameters of our roots blower:
Kind | Ratary Velocity (r/min) |
Strain Increase (Kpa) |
Capability (m/min) |
Shaft Power (Kw) |
Motor | Device Maximn Weight(Kg) |
Electricity (Kw) |
||||||
ESR-50 | 1100-2120 | nine.8-fifty eight.eight | .sixty five-two.58 | .3-3.54 | .75-4 | 128-158 |
ESR-sixty five | 1100-2130 | 9.eight-fifty eight.eight | .94-3.66 | .38-4.forty six | .seventy five-five.five | 155-185 |
ESR-80 | 1140-1900 | 9.eight-fifty eight.8 | two.34-5.43 | one.04-7.forty two | two.two-eleven | one hundred fifty five-277 |
ESR-a hundred | 1060-1980 | 9.8-58.eight | four.fifty seven-nine.05 | 1.35-twelve.fifteen | three-15 | 309-377 |
ESR-one hundred twenty five | 980-1850 | nine.eight-fifty eight.8 | 5.35-12.4 | 1.sixty five-5.19 | five.5-eighteen.five | 408-451 |
ESR-125C | 970-1830 | nine.8-58.eight | seven.5-seventeen.57 | 3.two-18.five | 4-22 | 408-451 |
ESR-a hundred and fifty | 810-1730 | 9.8-58.eight | ten.37-27.fifteen | three.84-40.82 | 7.five-forty five | 688-848 |
ESR-one hundred seventy five | 970-1520 | nine.8-58.eight | 19.65-36.sixty five | seven.two-45.ninety five | eleven-55 | 980-1080 |
ESR-200B | 740-1450 | nine.8-fifty eight.eight | 19.sixty five-forty four.eight | ten.15-sixty.forty four | 15-seventy five | 1272-1546 |
ESR-200 | 810-1480 | 9.8-58.8 | 27.sixty five-fifty nine.two | 8.05-80,twelve | 15-90 | 1272-1546 |
ESR-250B | 1100-1480 | nine.eight-fifty eight.8 | 54.seventy seven-seventy seven.fifty five | 19.ninety seven-ninety.ninety seven | thirty-a hundred and ten | 1490-2454 |
ESR-250 | 990-1480 | nine.8-fifty eight.eight | sixty one.4-ninety seven.52 | 20.1-117.3 | 30-132 | 1490-2454 |
ESR-300 | 990-1480 | 9.8-fifty eight.eight | 87.one-138.1 | 26.4-167.eight | 37-185 | 3326-3446 |
ESR-350 | 730-1480 | nine.eight-58.eight | 78.41-177.31 | 55-250 | ||
ESR-50H | 1230-2120 | 63.7-98 | .forty five-2.02 | two.05-6.12 | 3-7.five | one hundred sixty–170 |
ESR-65H | 1240-2130 | 63.7-98 | .seventy eight-2.fifty three | 2.89-7.fifty five | four-eleven | 198-230 |
ESR-80H | 1140-1900 | 63.7-98 | one.eighty two-four.55 | 4.09-10.one | five.five-15 | 316-326 |
ESR-100H | 1060-1980 | 63.7-98 | 2.sixty five-8.06 | six.36-17.two | 7.5-22 | 398-459 |
ESR-125H | 980-1850 | 63.seven-ninety eight | four.sixty four-11.23 | eight.ninety two-24.2 | eleven-30 | 544-630 |
ESR-150H | 810-1730 | sixty three.7-98 | 9.53-25.seventy six | seventeen.sixteen-sixty five | 18.5-75 | 752-1571 |
ESR-200H | 810-1480 | sixty three.seven-98 | 25.34-fifty six.ninety two | 42.34-one hundred twenty | 55-132 | 1426-1934 |
ESR-250H | 990-1480 | 63.7-ninety eight | 58-ninety three.seven | 83.2-205 | ninety-220 | 2980-3468 |
ESR300H | 990-1480 | sixty three.7-98 | 86.9-134.one | 114.seven-270 | 132-280 | 3476-3998 |
ERF-245 | 650-980 | nine.8-ninety eight | 47.five-ninety seven.4 | sixteen-183 | 18.five-two hundred | 3630-3690 |
ERF-250 | 650-980 | nine.8-98 | 61.6-120.4 | 19-227 | 22-250 | 4450-4500 |
ERF-290 | 650-980 | nine.8-seventy eight.4 | ninety two.three-128 | 22-213 | thirty-250 | 4890-4710 |
ERF-295 | 650-980 | nine.eight-seventy eight.4 | 97.3-152.five | 23-227 | thirty-250 | 4890-4880 |
ERF-297 | 650-980 | nine.eight-78.4 | 87.5-167.six | 26-249 | 30-280 | 5330-5520 |
ERF-300 | 650-980 | 9.eight-78.four | 101.5-188.7 | 29-278 | 37-315 | 5330-5520 |
ERF-350 | 650-980 | 9.8-seventy eight.4 | 126-224.9 | 34-249 | forty five-280 | 5210-6470 |
ERG-300 | 590-730 | nine.8-ninety eight | 128.3-196 | 38-362 | 45-400 | 9440-15710 |
ERG-350 | 590-730 | nine.eight-ninety eight | 159.3-231.6 | 43-420 | 55-450 | 9700-1571 |
ERG-four hundred | 590-730 | nine.8-eighty three.3 | 203.1-290.nine | fifty two-449 | seventy five-five hundred | 10090-11390 |
ERG-445 | 590-730 | 9.eight-73.five | 229.seven-327.8 | fifty eight-477 | seventy five-560 | 10600-12230 |
ERG-450 | 590-730 | 9.eight-73.5 | 262.four-366.two | 64-496 | 75-560 | 10600-12230 |
ERG-five hundred | 590-730 | 9.8-63.seven | 327.four-452.four | seventy eight-529 | ninety-560 | 12790-14620 |
ERF-240-V | 650-980 | -nine.eight- -49 | 38.1-seventy eight | thirteen-76 | eighteen.5-ninety | 3420-3285 |
ERF-245-V | 650-980 | -nine.eight- -forty nine | 47.5-97.four | sixteen-95 | 22-one hundred ten | 3425-3360 |
ERF-250-V | 650-980 | -9.8- -forty nine | 63-a hundred and twenty | 19-117 | 22-132 | 3910-3830 |
ERF-290-V | 650-980 | -9.8- -forty nine | 72.6-144 | 22-136 | thirty-160 | 4415-4270 |
ERF-295-V | 650-980 | -9.8- -49 | seventy six.six-152 | 23-a hundred forty five | thirty-one hundred sixty | 4425-4485 |
ERF-297-V | 650-980 | -9.8- -forty nine | eighty four.three-166.8 | 26-a hundred and sixty | 30-one hundred eighty | 5000-4980 |
ERF-three hundred-V | 650-980 | -nine.8- -forty nine | ninety seven-192 | 29-178 | 37-200 | 5000-4980 |
ERF-350-V | 650-980 | -9.8- -49 | 116-225 | 34-209 | forty five-250 | 5400-5700 |
ERG-300V | 590-730 | -nine.8- -49 | 133-193 | 38-184 | 45-220 | 7800-9100 |
ERG-350V | 590-730 | -nine.8- -forty nine | 163-231 | 43-216 | 55-250 | 9500-9470 |
ERG-400V | 590-730 | -9.eight- -forty nine | 199-290 | fifty two-269 | 75-315 | 9900-10130 |
ERG-445V | 590-730 | -9.8- -forty nine | 224.eight-326.9 | 58-303 | seventy five-355 | 9900-10130 |
ERG-450V | 590-730 | -9.eight- -49 | 255-365 | 64-335 | 75-four hundred | 11230-11300 |
ERG-500V | 590-730 | -nine.eight- -49 | 314-452 | seventy eight-412 | 132-450 | 13630-13850 |
ERF-245W | 650-980 | -13.3- -fifty three.three | 53.five-one hundred and one | 21.five-102 | thirty-a hundred and ten | 3630-3360 |
ERF-250W | 650-980 | -thirteen.three- -fifty three.3 | sixty nine-127 | 26.five-127 | thirty-one hundred sixty | 3985-4115 |
ERF-290W | 650-980 | -13.three- -fifty three.three | eighty two.6-one hundred fifty | thirty.5-149 | 37-185 | 4340-4580 |
ERF-295W | 650-980 | -13.three- -fifty three.3 | 87-158 | 32-158 | 37-185 | 4440-4580 |
ERF-297W | 650-980 | -13.three- -53.three | 95-174 | 36-174 | forty five-two hundred | 5230-5130 |
ERF-300W | 650-980 | -thirteen.3- -fifty three.3 | 109-195 | 40-193 | 55-220 | 5230-5130 |
ERF-350W | 650-980 | -13.three- -53.3 | 129-230 | 50-230 | seventy five-250 | 5840-5670 |
ERG-300W | 590-730 | -13.3- -fifty three.3 | 142-197 | fifty two-201 | seventy five-220 | 9100-9000 |
ERF-350W | 590-730 | -thirteen.three- -fifty three.three | 168-234.4 | fifty nine-235.5 | 75-280 | 9500-9600 |
ERG-400W | 590-730 | -13.3- -53.3 | 220-276.six | seventy one-292 | 90-315 | 9900-10130 |
ERG-445W | 590-730 | -thirteen.three- -53.three | 244-294.six | 82-331 | ninety-four hundred | 11230-11300 |
ERG450W | 590-730 | -thirteen.three- -fifty three.3 | 275-368.5 | ninety one-366 | 110-400 | 11230-11300 |
ETRF-250 (240,250) |
650-980 | 98-196 | sixty four.8-112 | 135-355 | one hundred sixty-four hundred | 8700-8600 |
ETRF-295 (245,295) |
650-980 | 98-196 | 80.eight-139 | 167-439 | 185-five hundred | 9200-9100 |
ETRF-300 (245,295) |
650-980 | ninety eight-176.four | 102-174 | 206-497 | 250-560 | 10320-10500 |
ETRF-350 (245,295) |
650-980 | ninety eight-137.2 | 124-207 | 241-473 | 280-560 | 10700-11110 |
ETRG-400 (300,four hundred) |
590-740 | 98-176.4 | 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.3–eighty | 72-121 | 75.6-121 | 90-one hundred sixty | 6100-6470 |
ETRF-295W (245/295) |
650-980 | -fifty three.three–80 | 93.8-154 | 99.5-186 | 110-220 | 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 | 9.8-58.8 | 54.2-a hundred thirty | 18-151 | 45-185 | 3595 |
EL82WDB | 580-980 | 9.8-fifty eight.eight | seventy two.eight-161 | 22-191 | 45-220 | 3860 |
EL83WDA | 580-980 | 9.8-58.nine | one zero one-213 | 28.5-202 | 45-220 | 4300 |
EL84WDA | 580-980 | 9.8-fifty eight.eight | 129-267 | 35.4-252 | forty five-280 | 4720 |
EL93WDA | 580-730 | nine.8-forty nine | 230-329 | fifty six.4-311 | seventy five-355 | 7765 |
EL94WDA | 580-730 | 9.8-forty nine | 263-373 | sixty four-353 | seventy five-four hundred | 8130 |
EL95WDA | 490-580 | nine.8-58.8 | 308-434 | eighty one.four-414 | 90-450 | 11500 |
EL96WDA | 580 | fifty eight.eight | 381 | 497 | 560 | 11500 |
E397WN | 1000-1650 | 40 | five-nine | |||
E408WN | 870-1650 | 40 | 10-22 | |||
E517WN | 980-1580 | 40 | 20-30 | |||
E520WN | 930-1550 | 40 | 24-45 | |||
E607WN | 750-1250 | forty | forty five-seventy six | |||
E610WN | 750-1250 | forty | seventy five-a hundred thirty |
Spare areas and structure of our roots blower:
Deal of our Roots Blower
Pack into iron scenario, two layer,blower physique and motor in decrease layer, inlet/out silencer etc in higher layer
Roots blower pack strategy identical as iron circumstance, just modify to Fumigation Free Plywood Case
Our manufacturing unit is a professional producer of Roots blowers which has above twenty years’ experience in machinery
manufacturing. It is found in Xihu (West Lake) Dis. East Industrial Park, fifty kilometers to the east of Shan EPT provincial
money— HangZhou. Our firm also has practical visitors transportation, as it is fifteen kilometers away from
Diaozhen Town station of HangZhou-HangZhou expressway, and thirty kilometers away from East HangZhou station of
ZheJiang -ZheJiang expressway.The major product of our organization is ESR -sort Roots Blower. The roots
vacuum pump is a new sort of higher-efficiency roots blower, which is designed independently dependent on the
domestic and overseas innovative technologies. Several patented technologies have been adopted on Roots
Blower, and thus we have created significant outcomes in strength conservation and noise reduction, and so on.. So significantly, our
firm has invested far more than thirty,000,000 RMB to introduce such sophisticated expert gear as
horizontal machining heart, vertical machining middle, two-way CNC surface area planer, CNC lathe, CNC milling
machine, CNC planer, plane grinder, cylindrical grinding machine, and a few coordinates screening equipment.
Apart from, we have taken different measures to standardize the approach circulation such as working and cooperating
with several scientific research units, colleges and universities at house and overseas. We also continuously try to
take in and boost the domestic innovative manufacturing technologies, so as to advertise the upgrading and
optimization of the item and make the item good quality reach the superior level at home and abroad.
ESR -type Roots Blower consists of many collection this kind of as A few-leaves Variety, Two-leaves Sort and Centrifugal
Kind,which can be further divided to hundreds of versions. The goods are commonly utilized in sewage treatment,
pneumatic conveying,vacuum packaging, aquaculture, meals processing, EPT power, petrochemical, cement,
mining and other industries. Our products have this kind of rewards as reduced sounds, power conserving, secure top quality,
and long provider daily life, and many others.. With the product sales outlets throughout the domestic capital towns, our goods promote nicely all
above the country, and have been exported to North The united states,Russia, Malaysia, Indonesia, Vietnam, South Africa
and some other international locations. Having received the ISO9001 International Quality Technique Certification, we have
recognized and improved the good quality assurance of the goods designing, production, and set up.
From the approach of layout, investigation and development to the finished merchandise, we have obtained the complete
process managed independently, hence offering the total basis and trustworthiness ensure for the products balance
and durability. Possessing a perfect sales network and after-income services, we supply our consumers with increased-
high quality and far more productive services.All personnel of our firm sincerely welcome the wide masses of friends to
guidebook, and negotiate organization with us.
Our Roots Blower Workshop
Doosn Horzitonal Equipment Centre
The Application of the Roots Blower
Upkeep and inspection
(one) Verify all fasteners and locating pins situations no matter whether they are loosening.
(2) Constantly verify whether the leakage phenomenon of the human body.
(three) Shell out interest to lubrication, sum of grease and noises when working,
decide no matter whether it performs below the needed problems.
(four) Lubricant & grease: The lubricant is for medium load industrial equipment oil
(grade 220, kinematic viscosity of 198 ~ 242mm2 / s 40ºC, flash level ≥ 200ºC)
The grease is butter (synthetic lithium grease penetration 220-250, drop position ≥
190ºC). Change the lubricant and grease after 1st 200 hours working, and replace
once again following a moth managing. Later, substitute the lubricant and grease in accordance to the
surroundings and lubricant (grease) top quality suggest a suited EPT for a few
months.
(five) Usually check out the inlet air filter, clean or substitute the filter in time.
(6) Blower overload occasionally not immediately displayed, so spend interest to
the consumption and exhaust pressure, bearing temperature and the current improve developments
of motor to determine whether or not the blower performs typically
(seven) Just before disassembling the blower, the assembling relation and dimensions
should be recorded or calculated, make marks on parts to make sure the original
needs soon after assembling.
(8) When newly device or overhaul, the oil tank must be cleaned ahead of use
and propose substitute all grease after eight hours managing.
Frequent failure reason and troubleshooting
No | Failure | Possible reasons | Elimination techniques |
one | Friction among the impeller |
(one) Impurities on the impeller, ensuing in the gap is also little (two) Gear wear, ensuing in a huge backlash (3) The equipment is not effectively fastened, can not sustain the impeller synchronization (four) Bearing dress in resulting in clearance escalating. |
(one) Remove grime and verify whether there is harm areas (two) Change the equipment hole, substitute the gears if the equipment backlash is higher than the regular thirty% to 50% (three)Re-assemble the gears, keep the taper get in touch with region is to 75% (4)Change the bearing |
2 | Collision in between impeller and wall, the impeller top and casing |
(one) Installation gap is not appropriate (two) functioning force is as well large, exceeding the specified worth (3) Running temperature is as well high (4) Casing or foundation deformation, positioning supporter failure (5) Bearing axial area is not very good |
(one) Change the hole (2) Identify causes of overloading, diminished the force to the specified worth (three) Check out the installation precision and minimize the pipe tension (4) Examine and mend bearings, and to make certain the clearance (five)Relocation |
three | Temperature too large |
(one) Oil in tank is way too much, way too thick or too filthy (two) Filter or silencer is blocked (three)The stress is higher than the specified benefit (four)Abnormal dress in of the impeller, huge hole (5)Very poor air flow, indoor temperature is high, resulting in inlet air’s higher temperature (6) The rotating velocity is also minimal,consequence in the belt slipping. |
(1)Reduce the oil level or depend on oil (2)Eliminate of blocking objects (3)Minimizing the pressure via the blower (4)Restore its clearance (five)Open up vents to lessen space temperature (6) Enhance speed to stop the belt slipping. |
4 | Inadequate stream |
(1) The inlet filter is blocked (2) Impeller put on and the hole boosts way too much (3) Belt slipping (4) Massive imports pressure decline (five) Pipeline air flow leakage |
(1) Clean the filter dust and obstruction (two) Repair the gap (three)Tighten the belt and improve the amount of belts (four)Adjust the inlet strain to the specified price (five) Verify and mend the pipeline |
5 | Oil leaking or oil leaking into the enclosure |
(1)Substantial tank placement trigger leakage from the discharge port (2) Seal use, ensuing in shaft oil spills (3) The strain is larger than the specified benefit |
(1)Lessen the oil degree (2)Substitute the seals (3)Very clear the air vents, 2mm diameter faucet is set in the middle chamber, open up the faucet under the wall |
six | Irregular vibration and sound |
(1)Bearing clearance exceeds the specified value or bearing use (2) The gear backlash is also large, not in a tight fastened (3) The international objects and dust brought on by the impeller and the impeller, the impeller and the housing collision (four) the impeller shaft deformation induced the collision triggered by overload, (five) Friction in between the impeller and the inlet housing triggered by overheating (six) Unbalance of the impeller triggered by fouling or overseas entire body (7) Anchor bolts or other fasteners are loosened |
(one)Substitute bearings or bearing seat (two)Reassemble equipment and make certain backlash (three)Cleaning blower, verify the circumstance is ruined (four)Check out the again stress, check out the wheel and modify hole (5)Check out the filter and back pressure, boost the gap among the impeller inlet and the casing (6)Cleanse the impeller and the casing, to make sure that the impeller clearance operate (7) Tighten the anchor bolts and leveling the base. |
seven | Motor overload |
(1)In comparison with the necessary stress, the stress variation is massive that the back again stress or the inlet pressure is large (two) In comparison with the tools needs, blower flow is too huge, so its stress increases (3)Inlet filter is blocked, or outlet pipe is obstructed or blocked (4) Collusion or friction (trapped) rotating areas (five) The oil degree is too large (6) Narrow V-belt is overheat, vibration is also massive, or pulley is too small |
(1) Minimize the pressure to the specified benefit (two) Exhaust the excess fuel into the environment or decrease the blower pace (3) Get rid of the obstructions (4)Right away shut down, verify the purpose (5) Adjust the oil to the appropriate amount (6) Check out the belt stress, and replaced it with massive diameter pulley. |
Our Service
one. Pre market service 2. Following promote service
a. recommend the ideal model c. on the internet technological assist,
b. manufacturing unit tour d. total life spare components and techinical help
Gurantee
twelve months gurantee for our roots blowers
/ The use of authentic gear manufacturer’s (OEM) component quantities or trademarks , e.g. CASE® and John Deere® are for reference reasons only and for indicating solution use and compatibility. Our business and the shown EPT parts contained herein are not sponsored, approved, or created by the OEM. /