We – EPG Group the biggest couplings and gears manufacturing unit in China with five diverse branches. For far more details: Cell/whatsapp/telegram/Kakao us at: 0086-13083988828 /
We make all varieties of roots blower, centrifugal blower, Our Primary goods are as beneath:
Type | Diameter | Charge of flow | Strain |
ESR-MJ(Intense Kind) | Φ50~Φ300mm | .five~140m³/min | nine.8KPa~98.8Kpa |
ESR(Regular Sort) | Φ50~Φ350mm | .five~140m³/min | 9.8KPa~78.4Kpa |
ESR-H(Substantial-stress Sort) | Φ50~Φ350mm | .7~160m³/min | fifty eight.8KPa~ninety eight.8Kpa |
ESR-V(Vacuum Pump) | Φ50~Φ350mm | .five~160m³/min | nine.8KPa~fifty three.3Kpa |
EL Sequence | Φ200~Φ600mm | twenty.three~750m³/min | nine.8KPa~fifty eight.8Kpa |
Multistage Centrifugal Blower or C-Sequence |
Φ250~Φ500mm | 50~500m³/min | 9.8KPa~98Kpa |
ERR-ERG Sort | Φ250~Φ500mm | one hundred twenty~420m³/min | 9.8KPa~98.8Kpa |
The doing work basic principle of the three-blade roots blower: two 3-lobed rotors are organized 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 reverse 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 attain the
objective of blowing.
Attribute of our roots blower:
1. Big adjustment of the air volume
2. Minimal Sound
three. Substantial effectiveness
four. Low power cosumption
5. Long time daily life
6. Dependable working, straightforward maintenance,modest footprint
The parameters of our roots blower:
Sort | Ratary Pace (r/min) |
Strain Rise (Kpa) |
Ability (m/min) |
Shaft Electrical power (Kw) |
Motor | Device Maximn Fat(Kg) |
Energy (Kw) |
||||||
ESR-50 | 1100-2120 | 9.8-fifty eight.eight | .sixty five-two.fifty eight | .3-three.54 | .seventy five-4 | 128-158 |
ESR-65 | 1100-2130 | 9.eight-58.eight | .94-3.sixty six | .38-four.46 | .75-5.5 | a hundred and fifty five-185 |
ESR-80 | 1140-1900 | nine.8-58.eight | 2.34-5.43 | 1.04-7.42 | two.2-11 | one hundred fifty five-277 |
ESR-a hundred | 1060-1980 | nine.eight-58.eight | four.57-9.05 | one.35-12.15 | three-15 | 309-377 |
ESR-a hundred twenty five | 980-1850 | 9.8-58.8 | 5.35-twelve.4 | one.sixty five-5.19 | 5.5-18.five | 408-451 |
ESR-125C | 970-1830 | nine.eight-fifty eight.eight | 7.5-seventeen.fifty seven | 3.two-eighteen.five | 4-22 | 408-451 |
ESR-a hundred and fifty | 810-1730 | 9.eight-58.8 | ten.37-27.15 | 3.eighty four-forty.eighty two | seven.five-45 | 688-848 |
ESR-a hundred seventy five | 970-1520 | nine.8-fifty eight.eight | 19.65-36.65 | 7.2-forty five.95 | 11-55 | 980-1080 |
ESR-200B | 740-1450 | nine.eight-58.eight | 19.sixty five-forty four.8 | ten.15-sixty.forty four | fifteen-75 | 1272-1546 |
ESR-200 | 810-1480 | 9.eight-58.8 | 27.sixty five-59.2 | eight.05-80,twelve | fifteen-90 | 1272-1546 |
ESR-250B | 1100-1480 | nine.eight-fifty eight.8 | fifty four.seventy seven-77.fifty five | 19.ninety seven-ninety.97 | 30-110 | 1490-2454 |
ESR-250 | 990-1480 | nine.8-58.eight | 61.four-ninety seven.fifty two | 20.1-117.3 | 30-132 | 1490-2454 |
ESR-300 | 990-1480 | 9.8-58.eight | 87.one-138.1 | 26.four-167.eight | 37-185 | 3326-3446 |
ESR-350 | 730-1480 | 9.8-58.eight | 78.41-177.31 | fifty five-250 | ||
ESR-50H | 1230-2120 | sixty three.seven-ninety eight | .45-2.02 | 2.05-6.twelve | 3-seven.5 | a hundred and sixty–one hundred seventy |
ESR-65H | 1240-2130 | 63.7-98 | .78-2.53 | 2.89-seven.55 | 4-eleven | 198-230 |
ESR-80H | 1140-1900 | 63.7-ninety eight | 1.eighty two-four.fifty five | four.09-ten.one | five.five-fifteen | 316-326 |
ESR-100H | 1060-1980 | sixty three.seven-ninety eight | two.sixty five-eight.06 | six.36-seventeen.2 | 7.5-22 | 398-459 |
ESR-125H | 980-1850 | sixty three.7-ninety eight | 4.64-11.23 | eight.ninety two-24.two | 11-thirty | 544-630 |
ESR-150H | 810-1730 | 63.seven-ninety eight | 9.fifty three-twenty five.seventy six | seventeen.sixteen-65 | eighteen.5-seventy five | 752-1571 |
ESR-200H | 810-1480 | sixty three.7-ninety eight | 25.34-56.92 | forty two.34-one hundred twenty | fifty five-132 | 1426-1934 |
ESR-250H | 990-1480 | sixty three.7-98 | 58-93.seven | 83.two-205 | ninety-220 | 2980-3468 |
ESR300H | 990-1480 | sixty three.seven-ninety eight | 86.9-134.1 | 114.seven-270 | 132-280 | 3476-3998 |
ERF-245 | 650-980 | nine.8-98 | 47.five-ninety seven.4 | sixteen-183 | eighteen.five-two hundred | 3630-3690 |
ERF-250 | 650-980 | 9.8-98 | sixty one.6-120.4 | 19-227 | 22-250 | 4450-4500 |
ERF-290 | 650-980 | nine.8-78.four | 92.three-128 | 22-213 | 30-250 | 4890-4710 |
ERF-295 | 650-980 | nine.eight-78.4 | ninety seven.3-152.five | 23-227 | 30-250 | 4890-4880 |
ERF-297 | 650-980 | 9.8-seventy eight.4 | 87.5-167.6 | 26-249 | 30-280 | 5330-5520 |
ERF-300 | 650-980 | 9.eight-78.four | a hundred and one.5-188.7 | 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 | nine.eight-ninety eight | 128.three-196 | 38-362 | forty five-four hundred | 9440-15710 |
ERG-350 | 590-730 | 9.eight-ninety eight | 159.3-231.six | forty three-420 | 55-450 | 9700-1571 |
ERG-400 | 590-730 | nine.eight-83.three | 203.1-290.9 | fifty two-449 | 75-500 | 10090-11390 |
ERG-445 | 590-730 | 9.eight-seventy three.5 | 229.7-327.8 | 58-477 | 75-560 | 10600-12230 |
ERG-450 | 590-730 | nine.eight-seventy three.five | 262.4-366.two | sixty four-496 | seventy five-560 | 10600-12230 |
ERG-500 | 590-730 | 9.eight-sixty three.seven | 327.four-452.four | seventy eight-529 | 90-560 | 12790-14620 |
ERF-240-V | 650-980 | -9.eight- -forty nine | 38.one-seventy eight | thirteen-seventy six | eighteen.five-ninety | 3420-3285 |
ERF-245-V | 650-980 | -9.8- -forty nine | forty seven.5-97.four | sixteen-ninety five | 22-one hundred ten | 3425-3360 |
ERF-250-V | 650-980 | -nine.8- -49 | 63-120 | 19-117 | 22-132 | 3910-3830 |
ERF-290-V | 650-980 | -9.8- -forty nine | seventy two.6-one hundred forty four | 22-136 | thirty-a hundred and sixty | 4415-4270 |
ERF-295-V | 650-980 | -nine.8- -forty nine | 76.six-152 | 23-one hundred forty five | thirty-a hundred and sixty | 4425-4485 |
ERF-297-V | 650-980 | -9.eight- -forty nine | eighty four.3-166.eight | 26-a hundred and sixty | 30-a hundred and eighty | 5000-4980 |
ERF-three hundred-V | 650-980 | -nine.8- -49 | 97-192 | 29-178 | 37-two hundred | 5000-4980 |
ERF-350-V | 650-980 | -nine.8- -forty nine | 116-225 | 34-209 | 45-250 | 5400-5700 |
ERG-300V | 590-730 | -9.8- -forty nine | 133-193 | 38-184 | 45-220 | 7800-9100 |
ERG-350V | 590-730 | -nine.eight- -forty nine | 163-231 | 43-216 | fifty five-250 | 9500-9470 |
ERG-400V | 590-730 | -9.8- -forty nine | 199-290 | fifty two-269 | seventy five-315 | 9900-10130 |
ERG-445V | 590-730 | -9.eight- -49 | 224.8-326.9 | fifty eight-303 | 75-355 | 9900-10130 |
ERG-450V | 590-730 | -9.eight- -49 | 255-365 | sixty four-335 | 75-four hundred | 11230-11300 |
ERG-500V | 590-730 | -nine.eight- -forty nine | 314-452 | 78-412 | 132-450 | 13630-13850 |
ERF-245W | 650-980 | -13.3- -53.three | 53.5-101 | 21.five-102 | 30-110 | 3630-3360 |
ERF-250W | 650-980 | -thirteen.three- -53.3 | sixty nine-127 | 26.five-127 | 30-a hundred and sixty | 3985-4115 |
ERF-290W | 650-980 | -13.3- -fifty three.three | 82.6-one hundred fifty | 30.five-149 | 37-185 | 4340-4580 |
ERF-295W | 650-980 | -thirteen.three- -53.3 | 87-158 | 32-158 | 37-185 | 4440-4580 |
ERF-297W | 650-980 | -13.three- -53.3 | ninety five-174 | 36-174 | 45-two hundred | 5230-5130 |
ERF-300W | 650-980 | -13.three- -53.three | 109-195 | forty-193 | 55-220 | 5230-5130 |
ERF-350W | 650-980 | -13.3- -53.three | 129-230 | 50-230 | seventy five-250 | 5840-5670 |
ERG-300W | 590-730 | -thirteen.3- -fifty three.three | 142-197 | fifty two-201 | 75-220 | 9100-9000 |
ERF-350W | 590-730 | -thirteen.three- -53.3 | 168-234.4 | 59-235.5 | seventy five-280 | 9500-9600 |
ERG-400W | 590-730 | -13.three- -53.three | 220-276.6 | 71-292 | ninety-315 | 9900-10130 |
ERG-445W | 590-730 | -13.3- -53.3 | 244-294.6 | 82-331 | 90-four hundred | 11230-11300 |
ERG450W | 590-730 | -thirteen.three- -fifty three.three | 275-368.five | 91-366 | a hundred and ten-four hundred | 11230-11300 |
ETRF-250 (240,250) |
650-980 | ninety eight-196 | 64.eight-112 | 135-355 | one hundred sixty-400 | 8700-8600 |
ETRF-295 (245,295) |
650-980 | 98-196 | eighty.8-139 | 167-439 | 185-five hundred | 9200-9100 |
ETRF-300 (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-400 (three hundred,400) |
590-740 | 98-176.4 | 205-273 | 380-773 | 450-900 | 21350-24200 |
ETRG-450 (350,450) |
590-740 | ninety eight-176.four | 263-428 | 476-955 | 560-1000 | 24200-27600 |
ETRF-250W (240,250) |
650-980 | -fifty three.3–eighty | 72-121 | seventy five.six-121 | 90-160 | 6100-6470 |
ETRF-295W (245/295) |
650-980 | -53.three–eighty | 93.8-154 | 99.five-186 | one hundred ten-220 | 7000-6400 |
ETRF-300W (2505/three hundred) |
650-980 | -fifty three.3–eighty | 116-189 | a hundred and fifteen-220 | 132-250 | 7750-7760 |
EL81WD | 580-980 | 9.eight-58.eight | fifty four.2-130 | 18-151 | 45-185 | 3595 |
EL82WDB | 580-980 | 9.eight-fifty eight.eight | seventy two.eight-161 | 22-191 | forty five-220 | 3860 |
EL83WDA | 580-980 | 9.eight-58.nine | a hundred and one-213 | 28.five-202 | 45-220 | 4300 |
EL84WDA | 580-980 | 9.8-fifty eight.eight | 129-267 | 35.4-252 | 45-280 | 4720 |
EL93WDA | 580-730 | nine.8-49 | 230-329 | 56.4-311 | seventy five-355 | 7765 |
EL94WDA | 580-730 | nine.eight-forty nine | 263-373 | sixty four-353 | seventy five-400 | 8130 |
EL95WDA | 490-580 | 9.8-58.8 | 308-434 | eighty one.4-414 | 90-450 | 11500 |
EL96WDA | 580 | fifty eight.eight | 381 | 497 | 560 | 11500 |
E397WN | one thousand-1650 | 40 | 5-nine | |||
E408WN | 870-1650 | forty | 10-22 | |||
E517WN | 980-1580 | 40 | twenty-30 | |||
E520WN | 930-1550 | 40 | 24-forty five | |||
E607WN | 750-1250 | 40 | 45-76 | |||
E610WN | 750-1250 | forty | 75-one hundred thirty |
Spare parts and construction of our roots blower:
Package deal of our Roots Blower
Pack into iron situation, two layer,blower physique and motor in reduce layer, inlet/out silencer etc in upper layer
Roots blower pack technique exact same as iron situation, just modify to Fumigation Free of charge Plywood Case
Our manufacturing unit is a expert producer of Roots blowers which has above 20 years’ experience in equipment
production. It is positioned in Xihu (West Lake) Dis. East Industrial Park, fifty kilometers to the east of Shan EPT provincial
money— HangZhou. Our firm also has hassle-free visitors transportation, as it is fifteen kilometers away from
Diaozhen Town station of HangZhou-HangZhou expressway, and thirty kilometers absent from East HangZhou station of
ZheJiang -ZheJiang expressway.The top item of our company is ESR -kind Roots Blower. The roots
vacuum pump is a new variety of higher-effectiveness roots blower, which is developed independently primarily based on the
domestic and overseas innovative systems. Numerous patented technologies have been adopted on Roots
Blower, and hence we have produced important results in vitality conservation and noise reduction, and so on.. So significantly, our
business has invested more than thirty,000,000 RMB to introduce this kind of advanced professional gear as
horizontal machining heart, vertical machining middle, two-way CNC floor planer, CNC lathe, CNC milling
machine, CNC planer, plane grinder, cylindrical grinding equipment, and 3 coordinates screening device.
In addition to, we have taken various actions to standardize the procedure flow this kind of as doing work and cooperating
with a lot of scientific research units, faculties and universities at residence and abroad. We also repeatedly try out to
soak up and increase the domestic advanced creation systems, so as to market the upgrading and
optimization of the merchandise and make the item quality get to the sophisticated degree at residence and overseas.
ESR -sort Roots Blower consists of many collection this sort of as Three-leaves Kind, Two-leaves Variety and Centrifugal
Variety,which can be additional divided to hundreds of varieties. The merchandise are extensively utilized in sewage treatment method,
pneumatic conveying,vacuum packaging, aquaculture, food processing, EPT electrical power, petrochemical, cement,
mining and other industries. Our products have this sort of benefits as reduced sounds, strength preserving, steady high quality,
and long services life, and many others.. With the sales outlets throughout the domestic funds towns, our products market nicely all
in excess of the nation, and have been exported to North America,Russia, Malaysia, Indonesia, Vietnam, South Africa
and some other nations. Obtaining received the ISO9001 Worldwide Good quality Method Certification, we have
proven and improved the top quality assurance of the products designing, production, and set up.
From the process of style, analysis and advancement to the finished products, we have received the entire
approach managed independently, thus providing the complete basis and dependability assure for the items steadiness
and toughness. Having a perfect product sales network and following-sales support, we offer our consumers with greater-
top quality and a lot more efficient service.All personnel of our firm sincerely welcome the wide masses of close friends to
guidebook, and negotiate organization with us.
Our Roots Blower Workshop
Doosn Horzitonal Machine Centre
The Software of the Roots Blower
Maintenance and inspection
(one) Check all fasteners and locating pins conditions regardless of whether they are loosening.
(two) Usually verify regardless of whether the leakage phenomenon of the body.
(3) Pay consideration to lubrication, volume of grease and noises when managing,
decide regardless of whether it works below the necessary circumstances.
(4) 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). Exchange the lubricant and grease soon after 1st two hundred several hours working, and change
once more right after a moth running. Afterwards, replace the lubricant and grease according to the
atmosphere and lubricant (grease) high quality suggest a suited EPT for three
months.
(5) Constantly verify the inlet air filter, clear or substitute the filter in time.
(6) Blower overload often not quickly shown, so shell out focus to
the ingestion and exhaust pressure, bearing temperature and the existing increase tendencies
of motor to figure out regardless of whether the blower performs normally
(seven) Prior to disassembling the blower, the assembling relation and proportions
should be recorded or measured, make marks on elements to guarantee the unique
requirements following assembling.
(eight) When recently device or overhaul, the oil tank should be cleaned ahead of use
and propose change all grease following 8 hours operating.
Typical failure cause and troubleshooting
No | Failure | Achievable causes | Elimination methods |
one | Friction in between the impeller |
(1) Impurities on the impeller, ensuing in the gap is way too small (2) Gear put on, resulting in a large backlash (three) The equipment is not properly mounted, can not sustain the impeller synchronization (4) Bearing put on ensuing in clearance increasing. |
(one) Take away grime and verify no matter whether there is injury areas (2) Alter the gear gap, substitute the gears if the equipment backlash is higher than the average thirty% to fifty% (3)Re-assemble the gears, keep the taper speak to location is to 75% (four)Replace the bearing |
two | Collision in between impeller and wall, the impeller top and casing |
(one) Installation gap is not appropriate (two) operating pressure is way too higher, exceeding the specified benefit (3) Working temperature is too large (4) Casing or base deformation, positioning fan failure (5) Bearing axial place is not very good |
(1) Change the gap (two) Identify leads to of overloading, decreased the pressure to the specified value (three) Examine the installation precision and lessen the pipe tension (four) Examine and repair bearings, and to make certain the clearance (five)Relocation |
3 | Temperature also large |
(one) Oil in tank is as well a lot, as well thick or way too dirty (2) Filter or silencer is blocked (3)The pressure is larger than the specified benefit (four)Excessive wear of the impeller, large hole (five)Bad ventilation, indoor temperature is higher, resulting in inlet air’s higher temperature (6) The rotating pace is also reduced,outcome in the belt slipping. |
(1)Decrease the oil stage or depend on oil (two)Eliminate of blocking objects (three)Decreasing the pressure by means of the blower (4)Mend its clearance (five)Open vents to reduce place temperature (six) Boost pace to avert the belt slipping. |
four | Inadequate circulation |
(1) The inlet filter is blocked (2) Impeller put on and the gap increases too much (three) Belt slipping (4) Big imports stress loss (five) Pipeline ventilation leakage |
(1) Cleanse the filter dust and obstruction (2) Fix the hole (3)Tighten the belt and enhance the number of belts (4)Alter the inlet stress to the specified value (five) Verify and mend the pipeline |
5 | Oil leaking or oil leaking into the enclosure |
(one)Higher tank situation trigger leakage from the discharge port (two) Seal use, resulting in shaft oil spills (3) The strain is larger than the specified value |
(1)Decrease the oil degree (two)Replace the seals (3)Very clear the air vents, 2mm diameter faucet is set in the center chamber, open up the faucet below the wall |
6 | Irregular vibration and noise |
(1)Bearing clearance exceeds the specified worth or bearing use (two) The equipment backlash is also large, not in a tight fixed (3) The international objects and dust brought on by the impeller and the impeller, the impeller and the housing collision (4) the impeller shaft deformation triggered the collision triggered by overload, (five) Friction in between the impeller and the inlet housing triggered by overheating (six) Unbalance of the impeller brought on by fouling or foreign human body (seven) Anchor bolts or other fasteners are loosened |
(1)Substitute bearings or bearing seat (2)Reassemble equipment and make sure backlash (3)Cleaning blower, examine the situation is ruined (four)Check the back pressure, check out the wheel and change hole (five)Verify the filter and back force, improve the hole between the impeller inlet and the casing (six)Clean the impeller and the casing, to make sure that the impeller clearance perform (7) Tighten the anchor bolts and leveling the foundation. |
seven | Motor overload |
(1)In contrast with the needed stress, the stress distinction is huge that the back force or the inlet pressure is high (two) In comparison with the equipment demands, blower circulation is way too big, so its pressure will increase (3)Inlet filter is blocked, or outlet pipe is obstructed or blocked (4) Collusion or friction (stuck) rotating areas (five) The oil amount is as well substantial (six) Slim V-belt is overheat, vibration is also huge, or pulley is too little |
(one) Reduce the strain to the specified price (2) Exhaust the surplus fuel into the environment or decrease the blower velocity (three) Remove the obstructions (4)Instantly shut down, check out the explanation (five) Alter the oil to the proper level (six) Check the belt rigidity, and changed it with huge diameter pulley. |
Our Service
one. Pre offer service two. Soon after offer service
a. advocate the ideal model c. on-line technological help,
b. manufacturing facility tour d. complete existence spare components and techinical assistance
Gurantee
twelve months gurantee for our roots blowers
/ The use of first equipment manufacturer’s (OEM) component quantities or logos , e.g. CASE® and John Deere® are for reference functions only and for indicating item use and compatibility. Our organization and the outlined EPT elements contained herein are not sponsored, authorized, or manufactured by the OEM. /