We – EPG Team the largest couplings and gears factory in China with 5 distinct branches. For much more specifics: Mobile/whatsapp/telegram/Kakao us at: 0086-13083988828 /
We make all kinds of roots blower, centrifugal blower, Our Major goods are as under:
Type | Diameter | Charge of flow | Force |
ESR-MJ(Intense Sort) | Φ50~Φ300mm | .5~140m³/min | nine.8KPa~ninety eight.8Kpa |
ESR(Ordinary Kind) | Φ50~Φ350mm | .five~140m³/min | 9.8KPa~seventy eight.4Kpa |
ESR-H(Higher-pressure Type) | Φ50~Φ350mm | .7~160m³/min | 58.8KPa~ninety eight.8Kpa |
ESR-V(Vacuum Pump) | Φ50~Φ350mm | .five~160m³/min | nine.8KPa~fifty three.3Kpa |
EL Series | Φ200~Φ600mm | 20.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 | one hundred twenty~420m³/min | nine.8KPa~ninety eight.8Kpa |
The operating principle of the 3-blade roots blower: two three-lobed rotors are arranged in the cavity, and the
suction port and the discharge port are opened on equally sides of the cavity. Via the motion 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 fuel in the chamber is pushed to attain the
goal of blowing.
Function of our roots blower:
1. Huge adjustment of the air volume
two. Minimal Noise
three. Substantial performance
4. Minimal vitality cosumption
5. Prolonged time life
six. Trustworthy running, straightforward servicing,little footprint
The parameters of our roots blower:
Kind | Ratary Pace (r/min) |
Pressure Increase (Kpa) |
Capacity (m/min) |
Shaft Electrical power (Kw) |
Motor | Unit Maximn Weight(Kg) |
Electricity (Kw) |
||||||
ESR-50 | 1100-2120 | nine.8-58.eight | .65-two.fifty eight | .three-three.54 | .75-four | 128-158 |
ESR-sixty five | 1100-2130 | 9.eight-58.8 | .94-3.sixty six | .38-4.forty six | .75-five.5 | one hundred fifty five-185 |
ESR-eighty | 1140-1900 | nine.eight-fifty eight.8 | two.34-five.forty three | 1.04-7.42 | two.2-11 | one hundred fifty five-277 |
ESR-a hundred | 1060-1980 | 9.8-58.8 | 4.57-9.05 | 1.35-twelve.15 | 3-15 | 309-377 |
ESR-125 | 980-1850 | 9.8-fifty eight.eight | five.35-twelve.four | one.65-5.19 | five.5-18.five | 408-451 |
ESR-125C | 970-1830 | 9.eight-fifty eight.eight | 7.five-seventeen.fifty seven | three.two-eighteen.5 | 4-22 | 408-451 |
ESR-150 | 810-1730 | nine.8-58.eight | 10.37-27.fifteen | 3.84-forty.82 | 7.five-forty five | 688-848 |
ESR-a hundred seventy five | 970-1520 | 9.eight-fifty eight.8 | 19.65-36.sixty five | 7.two-forty five.95 | eleven-55 | 980-1080 |
ESR-200B | 740-1450 | 9.eight-fifty eight.eight | 19.65-44.eight | ten.fifteen-60.44 | 15-seventy five | 1272-1546 |
ESR-200 | 810-1480 | nine.eight-fifty eight.eight | 27.65-59.2 | eight.05-80,12 | 15-ninety | 1272-1546 |
ESR-250B | 1100-1480 | 9.eight-58.8 | 54.seventy seven-77.fifty five | 19.97-90.97 | thirty-one hundred ten | 1490-2454 |
ESR-250 | 990-1480 | nine.eight-fifty eight.8 | sixty one.four-97.52 | 20.1-117.3 | thirty-132 | 1490-2454 |
ESR-300 | 990-1480 | nine.eight-58.eight | 87.one-138.1 | 26.four-167.eight | 37-185 | 3326-3446 |
ESR-350 | 730-1480 | 9.8-58.eight | seventy eight.41-177.31 | 55-250 | ||
ESR-50H | 1230-2120 | 63.7-ninety eight | .45-two.02 | two.05-six.12 | 3-seven.five | a hundred and sixty–one hundred seventy |
ESR-65H | 1240-2130 | sixty three.seven-98 | .seventy eight-2.53 | two.89-7.55 | 4-11 | 198-230 |
ESR-80H | 1140-1900 | 63.7-98 | one.82-four.fifty five | 4.09-10.1 | 5.five-fifteen | 316-326 |
ESR-100H | 1060-1980 | sixty three.7-98 | two.sixty five-8.06 | six.36-seventeen.two | 7.five-22 | 398-459 |
ESR-125H | 980-1850 | sixty three.seven-98 | four.sixty four-11.23 | eight.ninety two-24.two | 11-30 | 544-630 |
ESR-150H | 810-1730 | sixty three.7-98 | nine.53-twenty five.seventy six | seventeen.sixteen-sixty five | 18.five-seventy five | 752-1571 |
ESR-200H | 810-1480 | 63.seven-98 | 25.34-56.92 | forty two.34-a hundred and twenty | fifty five-132 | 1426-1934 |
ESR-250H | 990-1480 | 63.7-ninety eight | fifty eight-93.seven | 83.2-205 | 90-220 | 2980-3468 |
ESR300H | 990-1480 | sixty three.7-ninety eight | 86.9-134.1 | 114.7-270 | 132-280 | 3476-3998 |
ERF-245 | 650-980 | nine.8-98 | 47.five-97.four | sixteen-183 | 18.five-two hundred | 3630-3690 |
ERF-250 | 650-980 | 9.eight-98 | 61.6-120.4 | 19-227 | 22-250 | 4450-4500 |
ERF-290 | 650-980 | nine.8-78.4 | ninety two.three-128 | 22-213 | 30-250 | 4890-4710 |
ERF-295 | 650-980 | 9.8-78.four | 97.3-152.5 | 23-227 | 30-250 | 4890-4880 |
ERF-297 | 650-980 | nine.eight-seventy eight.four | 87.five-167.six | 26-249 | thirty-280 | 5330-5520 |
ERF-three hundred | 650-980 | 9.eight-seventy eight.four | 101.5-188.seven | 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-three hundred | 590-730 | 9.eight-ninety eight | 128.3-196 | 38-362 | 45-four hundred | 9440-15710 |
ERG-350 | 590-730 | nine.8-98 | 159.three-231.six | 43-420 | fifty five-450 | 9700-1571 |
ERG-four hundred | 590-730 | 9.8-83.3 | 203.1-290.9 | fifty two-449 | 75-500 | 10090-11390 |
ERG-445 | 590-730 | nine.eight-73.five | 229.7-327.eight | 58-477 | seventy five-560 | 10600-12230 |
ERG-450 | 590-730 | nine.eight-seventy three.5 | 262.4-366.2 | sixty four-496 | 75-560 | 10600-12230 |
ERG-500 | 590-730 | 9.eight-63.seven | 327.4-452.4 | 78-529 | 90-560 | 12790-14620 |
ERF-240-V | 650-980 | -9.eight- -forty nine | 38.1-seventy eight | thirteen-76 | eighteen.5-ninety | 3420-3285 |
ERF-245-V | 650-980 | -nine.8- -49 | 47.5-ninety seven.4 | 16-ninety five | 22-a hundred and ten | 3425-3360 |
ERF-250-V | 650-980 | -nine.eight- -forty nine | 63-a hundred and twenty | 19-117 | 22-132 | 3910-3830 |
ERF-290-V | 650-980 | -9.eight- -forty nine | seventy two.6-a hundred and forty four | 22-136 | 30-160 | 4415-4270 |
ERF-295-V | 650-980 | -9.eight- -49 | 76.six-152 | 23-one hundred forty five | 30-a hundred and sixty | 4425-4485 |
ERF-297-V | 650-980 | -nine.8- -49 | eighty four.three-166.eight | 26-a hundred and sixty | thirty-a hundred and eighty | 5000-4980 |
ERF-300-V | 650-980 | -9.8- -forty nine | 97-192 | 29-178 | 37-two hundred | 5000-4980 |
ERF-350-V | 650-980 | -nine.eight- -49 | 116-225 | 34-209 | forty five-250 | 5400-5700 |
ERG-300V | 590-730 | -nine.8- -forty nine | 133-193 | 38-184 | 45-220 | 7800-9100 |
ERG-350V | 590-730 | -9.eight- -forty nine | 163-231 | forty three-216 | fifty five-250 | 9500-9470 |
ERG-400V | 590-730 | -9.8- -49 | 199-290 | 52-269 | 75-315 | 9900-10130 |
ERG-445V | 590-730 | -nine.8- -forty nine | 224.eight-326.nine | 58-303 | seventy five-355 | 9900-10130 |
ERG-450V | 590-730 | -nine.eight- -49 | 255-365 | 64-335 | 75-four hundred | 11230-11300 |
ERG-500V | 590-730 | -9.8- -49 | 314-452 | 78-412 | 132-450 | 13630-13850 |
ERF-245W | 650-980 | -13.3- -53.3 | fifty three.five-a hundred and one | 21.5-102 | thirty-110 | 3630-3360 |
ERF-250W | 650-980 | -thirteen.three- -fifty three.three | 69-127 | 26.five-127 | 30-160 | 3985-4115 |
ERF-290W | 650-980 | -13.three- -fifty three.3 | 82.6-150 | thirty.five-149 | 37-185 | 4340-4580 |
ERF-295W | 650-980 | -thirteen.3- -fifty three.three | 87-158 | 32-158 | 37-185 | 4440-4580 |
ERF-297W | 650-980 | -thirteen.3- -fifty three.three | ninety five-174 | 36-174 | forty five-200 | 5230-5130 |
ERF-300W | 650-980 | -13.3- -fifty three.3 | 109-195 | 40-193 | 55-220 | 5230-5130 |
ERF-350W | 650-980 | -13.three- -53.3 | 129-230 | fifty-230 | 75-250 | 5840-5670 |
ERG-300W | 590-730 | -thirteen.3- -53.three | 142-197 | fifty two-201 | seventy five-220 | 9100-9000 |
ERF-350W | 590-730 | -thirteen.three- -53.3 | 168-234.four | 59-235.5 | 75-280 | 9500-9600 |
ERG-400W | 590-730 | -thirteen.3- -53.3 | 220-276.6 | 71-292 | ninety-315 | 9900-10130 |
ERG-445W | 590-730 | -13.three- -53.3 | 244-294.six | 82-331 | ninety-four hundred | 11230-11300 |
ERG450W | 590-730 | -thirteen.3- -53.3 | 275-368.5 | ninety one-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-four hundred | 8700-8600 |
ETRF-295 (245,295) |
650-980 | ninety eight-196 | eighty.eight-139 | 167-439 | 185-five hundred | 9200-9100 |
ETRF-300 (245,295) |
650-980 | 98-176.4 | 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-four hundred (300,400) |
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 | -53.three–eighty | seventy two-121 | seventy five.6-121 | ninety-160 | 6100-6470 |
ETRF-295W (245/295) |
650-980 | -fifty three.three–eighty | 93.eight-154 | ninety nine.five-186 | 110-220 | 7000-6400 |
ETRF-300W (2505/three hundred) |
650-980 | -fifty three.3–80 | 116-189 | 115-220 | 132-250 | 7750-7760 |
EL81WD | 580-980 | 9.8-58.8 | 54.2-a hundred thirty | eighteen-151 | forty five-185 | 3595 |
EL82WDB | 580-980 | 9.8-58.8 | 72.8-161 | 22-191 | forty five-220 | 3860 |
EL83WDA | 580-980 | 9.eight-58.nine | 101-213 | 28.five-202 | 45-220 | 4300 |
EL84WDA | 580-980 | 9.8-fifty eight.8 | 129-267 | 35.four-252 | 45-280 | 4720 |
EL93WDA | 580-730 | nine.eight-49 | 230-329 | fifty six.four-311 | 75-355 | 7765 |
EL94WDA | 580-730 | nine.eight-forty nine | 263-373 | sixty four-353 | seventy five-four hundred | 8130 |
EL95WDA | 490-580 | nine.eight-fifty eight.8 | 308-434 | eighty one.four-414 | 90-450 | 11500 |
EL96WDA | 580 | fifty eight.eight | 381 | 497 | 560 | 11500 |
E397WN | one thousand-1650 | forty | five-9 | |||
E408WN | 870-1650 | forty | 10-22 | |||
E517WN | 980-1580 | 40 | twenty-thirty | |||
E520WN | 930-1550 | 40 | 24-forty five | |||
E607WN | 750-1250 | 40 | 45-seventy six | |||
E610WN | 750-1250 | forty | seventy five-130 |
Spare elements and composition of our roots blower:
Bundle of our Roots Blower
Pack into iron case, two layer,blower entire body and motor in decrease layer, inlet/out silencer and many others in higher layer
Roots blower pack method exact same as iron circumstance, just modify to Fumigation Cost-free Plywood Circumstance
Our factory is a specialist producer of Roots blowers which has over twenty years’ experience in equipment
production. It is located in Xihu (West Lake) Dis. East Industrial Park, fifty kilometers to the east of Shan EPT provincial
cash— HangZhou. Our firm also has convenient targeted traffic transportation, as it is 15 kilometers absent 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 organization is ESR -variety Roots Blower. The roots
vacuum pump is a new kind of high-effectiveness roots blower, which is designed independently based on the
domestic and overseas sophisticated technologies. Several patented technologies have been adopted on Roots
Blower, and as a result we have produced important outcomes in strength conservation and noise reduction, etc.. So considerably, our
organization has invested much more than thirty,000,000 RMB to introduce such sophisticated professional tools as
horizontal machining middle, vertical machining middle, two-way CNC surface area planer, CNC lathe, CNC milling
machine, CNC planer, aircraft grinder, cylindrical grinding equipment, and a few coordinates screening device.
Besides, we have taken various measures to standardize the process stream these kinds of as working and cooperating
with a lot of scientific research units, faculties and universities at house and abroad. We also continuously try out to
soak up and increase the domestic sophisticated production systems, so as to advertise the upgrading and
optimization of the merchandise and make the product good quality attain the sophisticated stage at house and abroad.
ESR -variety Roots Blower consists of several collection this kind of as 3-leaves Kind, Two-leaves Variety and Centrifugal
Type,which can be even more divided to hundreds of versions. The items are extensively utilized in sewage therapy,
pneumatic conveying,vacuum packaging, aquaculture, food processing, EPT electrical power, petrochemical, cement,
mining and other industries. Our products have this sort of positive aspects as minimal sound, energy conserving, steady top quality,
and extended support existence, and many others.. With the sales outlets throughout the domestic funds cities, our goods offer effectively all
more than the region, and have been exported to North The united states,Russia, Malaysia, Indonesia, Vietnam, South Africa
and some other nations. Getting got the ISO9001 Global Quality System Certification, we have
proven and improved the high quality assurance of the items creating, manufacturing, and set up.
From the process of design, study and development to the finished items, we have got the whole
procedure controlled independently, as a result providing the full basis and trustworthiness ensure for the goods balance
and longevity. Getting a perfect sales community and after-product sales support, we offer our clients with larger-
good quality and much more successful support.All staff of our firm sincerely welcome the wide masses of close friends to
manual, and negotiate company with us.
Our Roots Blower Workshop
Doosn Horzitonal Device Heart
The Application of the Roots Blower
Servicing and inspection
(one) Verify all fasteners and finding pins conditions no matter whether they are loosening.
(2) Usually check out whether or not the leakage phenomenon of the physique.
(3) Shell out interest to lubrication, volume of grease and noises when running,
figure out no matter whether it works below the needed circumstances.
(four) Lubricant & grease: The lubricant is for medium load industrial gear 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 following first two hundred hrs managing, and change
yet again right after a moth working. Afterwards, replace the lubricant and grease according to the
atmosphere and lubricant (grease) top quality propose a suitable EPT for a few
months.
(five) Always check out the inlet air filter, cleanse or exchange the filter in time.
(six) Blower overload sometimes not instantly shown, so spend interest to
the consumption and exhaust strain, bearing temperature and the current improve tendencies
of motor to establish 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 factors to make certain the authentic
demands soon after assembling.
(8) When recently device or overhaul, the oil tank must be cleaned ahead of use
and suggest exchange all grease soon after eight hrs operating.
Typical failure purpose and troubleshooting
No | Failure | Attainable motives | Elimination approaches |
1 | Friction amongst the impeller |
(one) Impurities on the impeller, resulting in the hole is as well small (2) Gear wear, ensuing in a big backlash (3) The gear is not nicely mounted, can not preserve the impeller synchronization (four) Bearing wear resulting in clearance escalating. |
(1) Get rid of dirt and verify whether there is damage areas (two) Change the equipment hole, replace the gears if the gear backlash is increased than the regular thirty% to fifty% (three)Re-assemble the gears, maintain the taper get in touch with spot is to 75% (4)Change the bearing |
two | Collision between impeller and wall, the impeller best and casing |
(one) Installation gap is not correct (2) operating force is as well higher, exceeding the specified price (3) Functioning temperature is way too high (four) Casing or base deformation, positioning admirer failure (five) Bearing axial area is not great |
(1) Modify the gap (two) Recognize brings about of overloading, lowered the strain to the specified price (three) Examine the installation accuracy and reduce the pipe tension (four) Verify and mend bearings, and to make certain the clearance (5)Relocation |
3 | Temperature way too high |
(one) Oil in tank is as well much, too thick or too soiled (two) Filter or silencer is blocked (3)The pressure is larger than the specified benefit (4)Abnormal put on of the impeller, big hole (5)Bad air flow, indoor temperature is higher, ensuing in inlet air’s high temperature (6) The rotating pace is way too reduced,end result in the belt slipping. |
(one)Reduce the oil stage or rely on oil (2)Take away of blocking objects (three)Reducing the force via the blower (4)Repair its clearance (five)Open up vents to lessen room temperature (6) Increase pace to avoid the belt slipping. |
four | Inadequate flow |
(1) The inlet filter is blocked (two) Impeller dress in and the hole raises also significantly (3) Belt slipping (4) Huge imports stress loss (5) Pipeline air flow leakage |
(one) Clean the filter dust and obstruction (two) Restore the hole (3)Tighten the belt and increase the variety of belts (4)Change the inlet pressure to the specified benefit (5) Examine and repair the pipeline |
five | Oil leaking or oil leaking into the enclosure |
(one)High tank placement cause leakage from the discharge port (two) Seal dress in, resulting in shaft oil spills (3) The pressure is higher than the specified price |
(one)Reduce the oil level (2)Change the seals (3)Obvious the air vents, 2mm diameter faucet is mounted in the middle chamber, open the faucet under the wall |
6 | Abnormal vibration and sounds |
(1)Bearing clearance exceeds the specified worth or bearing put on (2) The equipment backlash is too huge, not in a tight fastened (3) The international objects and dust induced by the impeller and the impeller, the impeller and the housing collision (4) the impeller shaft deformation brought on the collision induced by overload, (five) Friction amongst the impeller and the inlet housing caused by overheating (6) Unbalance of the impeller triggered by fouling or overseas entire body (seven) Anchor bolts or other fasteners are loosened |
(one)Substitute bearings or bearing seat (2)Reassemble gear and guarantee backlash (3)Cleaning blower, examine the situation is damaged (four)Examine the again strain, verify the wheel and adjust hole (five)Examine the filter and back strain, increase the gap amongst the impeller inlet and the casing (6)Thoroughly clean the impeller and the casing, to guarantee that the impeller clearance work (7) Tighten the anchor bolts and leveling the foundation. |
7 | Motor overload |
(1)Compared with the necessary force, the pressure distinction is huge that the back force or the inlet strain is substantial (two) When compared with the products requirements, blower flow is way too large, so its force increases (3)Inlet filter is blocked, or outlet pipe is obstructed or blocked (4) Collusion or friction (stuck) rotating elements (five) The oil stage is as well higher (6) Slim V-belt is overheat, vibration is also big, or pulley is also tiny |
(1) Decrease the stress to the specified price (2) Exhaust the excess fuel into the atmosphere or lessen the blower pace (3) Eliminate the obstructions (four)Instantly shut down, check out the cause (5) Change the oil to the correct level (six) Examine the belt tension, and replaced it with massive diameter pulley. |
Our Services
1. Pre sell service 2. Following market service
a. advise the appropriate model c. on the internet specialized help,
b. manufacturing facility tour d. entire daily life spare components and techinical support
Gurantee
12 months gurantee for our roots blowers
/ The use of authentic equipment manufacturer’s (OEM) part numbers or logos , e.g. CASE® and John Deere® are for reference purposes only and for indicating product use and compatibility. Our company and the detailed EPT areas contained herein are not sponsored, accepted, or made by the OEM. /