We – EPG Group the most significant couplings and gears factory in China with five distinct branches. For more particulars: Mobile/whatsapp/telegram/Kakao us at: 0086-13083988828 /
We make all types of roots blower, centrifugal blower, Our Major items are as under:
Sort | Diameter | Price of stream | Stress |
ESR-MJ(Intensive Sort) | Φ50~Φ300mm | .five~140m³/min | nine.8KPa~ninety eight.8Kpa |
ESR(Normal Sort) | Φ50~Φ350mm | .five~140m³/min | 9.8KPa~78.4Kpa |
ESR-H(Large-pressure Kind) | Φ50~Φ350mm | .7~160m³/min | fifty eight.8KPa~ninety eight.8Kpa |
ESR-V(Vacuum Pump) | Φ50~Φ350mm | .5~160m³/min | nine.8KPa~53.3Kpa |
EL Sequence | Φ200~Φ600mm | 20.three~750m³/min | nine.8KPa~fifty eight.8Kpa |
Multistage Centrifugal Blower or C-Collection |
Φ250~Φ500mm | 50~500m³/min | nine.8KPa~98Kpa |
ERR-ERG Sort | Φ250~Φ500mm | 120~420m³/min | 9.8KPa~ninety eight.8Kpa |
The operating theory of the a few-blade roots blower: two 3-lobed rotors are arranged in the cavity, and the
suction port and the discharge port are opened on the two sides of the cavity. By means of the motion of a pair of
synchronous gears, the two rotors rotate in reverse 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 accomplish the
goal of blowing.
Feature of our roots blower:
1. Huge adjustment of the air quantity
two. Minimal Noise
three. High efficiency
four. Minimal vitality cosumption
5. Long time lifestyle
6. Reputable running, effortless servicing,little footprint
The parameters of our roots blower:
Variety | Ratary Velocity (r/min) |
Strain Increase (Kpa) |
Ability (m/min) |
Shaft Electrical power (Kw) |
Motor | Device Maximn Fat(Kg) |
Power (Kw) |
||||||
ESR-fifty | 1100-2120 | nine.8-fifty eight.8 | .sixty five-2.58 | .3-three.54 | .75-4 | 128-158 |
ESR-sixty five | 1100-2130 | 9.eight-fifty eight.eight | .ninety four-3.66 | .38-4.46 | .seventy five-5.5 | 155-185 |
ESR-eighty | 1140-1900 | 9.8-58.8 | two.34-five.43 | one.04-7.42 | 2.two-11 | 155-277 |
ESR-100 | 1060-1980 | nine.8-58.eight | 4.57-nine.05 | one.35-twelve.fifteen | 3-fifteen | 309-377 |
ESR-125 | 980-1850 | 9.eight-58.8 | 5.35-twelve.4 | one.sixty five-five.19 | five.5-18.five | 408-451 |
ESR-125C | 970-1830 | 9.eight-58.8 | 7.5-seventeen.57 | 3.two-18.5 | 4-22 | 408-451 |
ESR-one hundred fifty | 810-1730 | nine.8-58.eight | 10.37-27.15 | three.84-40.eighty two | seven.5-forty five | 688-848 |
ESR-175 | 970-1520 | nine.8-58.8 | 19.65-36.65 | 7.two-forty five.ninety five | eleven-55 | 980-1080 |
ESR-200B | 740-1450 | nine.8-58.8 | 19.65-forty four.8 | 10.15-sixty.forty four | 15-seventy five | 1272-1546 |
ESR-200 | 810-1480 | 9.eight-fifty eight.8 | 27.65-59.two | 8.05-eighty,twelve | 15-ninety | 1272-1546 |
ESR-250B | 1100-1480 | 9.eight-fifty eight.eight | 54.seventy seven-77.55 | 19.97-ninety.97 | 30-110 | 1490-2454 |
ESR-250 | 990-1480 | nine.8-fifty eight.8 | sixty one.four-97.fifty two | twenty.one-117.three | 30-132 | 1490-2454 |
ESR-three hundred | 990-1480 | 9.8-58.eight | 87.1-138.1 | 26.four-167.eight | 37-185 | 3326-3446 |
ESR-350 | 730-1480 | nine.8-58.eight | seventy eight.forty one-177.31 | 55-250 | ||
ESR-50H | 1230-2120 | 63.7-98 | .forty five-two.02 | two.05-six.twelve | 3-7.five | one hundred sixty–one hundred seventy |
ESR-65H | 1240-2130 | 63.7-ninety eight | .78-two.53 | 2.89-seven.fifty five | four-11 | 198-230 |
ESR-80H | 1140-1900 | 63.seven-ninety eight | one.82-4.55 | 4.09-10.1 | five.5-15 | 316-326 |
ESR-100H | 1060-1980 | 63.seven-ninety eight | 2.sixty five-8.06 | six.36-seventeen.2 | 7.five-22 | 398-459 |
ESR-125H | 980-1850 | sixty three.seven-ninety eight | 4.sixty four-11.23 | 8.92-24.2 | 11-thirty | 544-630 |
ESR-150H | 810-1730 | sixty three.7-98 | 9.fifty three-twenty five.seventy six | 17.16-65 | eighteen.5-75 | 752-1571 |
ESR-200H | 810-1480 | sixty three.seven-98 | 25.34-56.92 | 42.34-a hundred and twenty | fifty five-132 | 1426-1934 |
ESR-250H | 990-1480 | 63.seven-98 | fifty eight-ninety three.7 | 83.2-205 | 90-220 | 2980-3468 |
ESR300H | 990-1480 | sixty three.seven-ninety eight | 86.9-134.one | 114.seven-270 | 132-280 | 3476-3998 |
ERF-245 | 650-980 | 9.eight-98 | 47.five-97.4 | sixteen-183 | 18.five-two hundred | 3630-3690 |
ERF-250 | 650-980 | nine.8-ninety eight | 61.6-one hundred twenty.four | 19-227 | 22-250 | 4450-4500 |
ERF-290 | 650-980 | 9.eight-78.four | ninety two.3-128 | 22-213 | 30-250 | 4890-4710 |
ERF-295 | 650-980 | nine.8-78.4 | 97.three-152.five | 23-227 | 30-250 | 4890-4880 |
ERF-297 | 650-980 | 9.eight-78.4 | 87.five-167.six | 26-249 | 30-280 | 5330-5520 |
ERF-300 | 650-980 | 9.8-78.four | 101.five-188.seven | 29-278 | 37-315 | 5330-5520 |
ERF-350 | 650-980 | nine.8-78.four | 126-224.9 | 34-249 | 45-280 | 5210-6470 |
ERG-three hundred | 590-730 | nine.eight-ninety eight | 128.3-196 | 38-362 | forty five-four hundred | 9440-15710 |
ERG-350 | 590-730 | nine.8-98 | 159.three-231.six | forty three-420 | 55-450 | 9700-1571 |
ERG-400 | 590-730 | 9.eight-83.three | 203.1-290.nine | 52-449 | seventy five-500 | 10090-11390 |
ERG-445 | 590-730 | nine.eight-73.five | 229.seven-327.eight | fifty eight-477 | seventy five-560 | 10600-12230 |
ERG-450 | 590-730 | nine.8-seventy three.5 | 262.four-366.2 | 64-496 | seventy five-560 | 10600-12230 |
ERG-five hundred | 590-730 | nine.eight-63.7 | 327.four-452.4 | seventy eight-529 | 90-560 | 12790-14620 |
ERF-240-V | 650-980 | -nine.8- -49 | 38.one-78 | thirteen-76 | 18.five-ninety | 3420-3285 |
ERF-245-V | 650-980 | -nine.eight- -49 | 47.5-ninety seven.4 | sixteen-ninety five | 22-a hundred and ten | 3425-3360 |
ERF-250-V | 650-980 | -9.8- -forty nine | sixty three-one hundred twenty | 19-117 | 22-132 | 3910-3830 |
ERF-290-V | 650-980 | -nine.8- -49 | 72.6-a hundred and forty four | 22-136 | thirty-160 | 4415-4270 |
ERF-295-V | 650-980 | -9.8- -forty nine | 76.6-152 | 23-145 | thirty-a hundred and sixty | 4425-4485 |
ERF-297-V | 650-980 | -nine.eight- -49 | eighty four.3-166.8 | 26-a hundred and sixty | 30-one hundred eighty | 5000-4980 |
ERF-300-V | 650-980 | -nine.eight- -forty nine | 97-192 | 29-178 | 37-two hundred | 5000-4980 |
ERF-350-V | 650-980 | -nine.eight- -forty nine | 116-225 | 34-209 | 45-250 | 5400-5700 |
ERG-300V | 590-730 | -nine.eight- -forty nine | 133-193 | 38-184 | 45-220 | 7800-9100 |
ERG-350V | 590-730 | -9.8- -forty nine | 163-231 | 43-216 | fifty five-250 | 9500-9470 |
ERG-400V | 590-730 | -nine.eight- -forty nine | 199-290 | 52-269 | 75-315 | 9900-10130 |
ERG-445V | 590-730 | -9.8- -49 | 224.eight-326.nine | 58-303 | 75-355 | 9900-10130 |
ERG-450V | 590-730 | -9.8- -49 | 255-365 | sixty four-335 | seventy five-four hundred | 11230-11300 |
ERG-500V | 590-730 | -9.8- -49 | 314-452 | seventy eight-412 | 132-450 | 13630-13850 |
ERF-245W | 650-980 | -thirteen.3- -fifty three.three | fifty three.five-101 | 21.5-102 | thirty-110 | 3630-3360 |
ERF-250W | 650-980 | -13.three- -53.3 | 69-127 | 26.5-127 | thirty-160 | 3985-4115 |
ERF-290W | 650-980 | -thirteen.3- -53.three | 82.six-one hundred fifty | 30.five-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 | -13.3- -fifty three.3 | 95-174 | 36-174 | 45-200 | 5230-5130 |
ERF-300W | 650-980 | -13.three- -53.3 | 109-195 | forty-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 | -thirteen.3- -fifty three.3 | 142-197 | 52-201 | 75-220 | 9100-9000 |
ERF-350W | 590-730 | -13.3- -53.three | 168-234.four | fifty nine-235.five | 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- -fifty three.three | 244-294.6 | 82-331 | 90-400 | 11230-11300 |
ERG450W | 590-730 | -13.three- -53.three | 275-368.5 | 91-366 | a hundred and ten-400 | 11230-11300 |
ETRF-250 (240,250) |
650-980 | 98-196 | sixty four.8-112 | a hundred thirty five-355 | one hundred sixty-400 | 8700-8600 |
ETRF-295 (245,295) |
650-980 | 98-196 | 80.eight-139 | 167-439 | 185-500 | 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-400 (three hundred,400) |
590-740 | ninety eight-176.4 | 205-273 | 380-773 | 450-900 | 21350-24200 |
ETRG-450 (350,450) |
590-740 | ninety eight-176.4 | 263-428 | 476-955 | 560-one thousand | 24200-27600 |
ETRF-250W (240,250) |
650-980 | -fifty three.3–eighty | 72-121 | seventy five.six-121 | 90-a hundred and sixty | 6100-6470 |
ETRF-295W (245/295) |
650-980 | -fifty three.three–80 | ninety three.eight-154 | ninety nine.five-186 | one hundred ten-220 | 7000-6400 |
ETRF-300W (2505/300) |
650-980 | -53.3–eighty | 116-189 | one hundred fifteen-220 | 132-250 | 7750-7760 |
EL81WD | 580-980 | nine.eight-fifty eight.8 | 54.2-130 | 18-151 | forty five-185 | 3595 |
EL82WDB | 580-980 | 9.eight-58.8 | seventy two.8-161 | 22-191 | forty five-220 | 3860 |
EL83WDA | 580-980 | nine.eight-fifty eight.nine | one hundred and one-213 | 28.five-202 | forty five-220 | 4300 |
EL84WDA | 580-980 | 9.8-58.eight | 129-267 | 35.four-252 | 45-280 | 4720 |
EL93WDA | 580-730 | 9.8-49 | 230-329 | fifty six.4-311 | seventy five-355 | 7765 |
EL94WDA | 580-730 | 9.eight-49 | 263-373 | 64-353 | 75-400 | 8130 |
EL95WDA | 490-580 | 9.eight-58.8 | 308-434 | 81.4-414 | 90-450 | 11500 |
EL96WDA | 580 | 58.8 | 381 | 497 | 560 | 11500 |
E397WN | a thousand-1650 | 40 | 5-9 | |||
E408WN | 870-1650 | 40 | 10-22 | |||
E517WN | 980-1580 | 40 | twenty-30 | |||
E520WN | 930-1550 | 40 | 24-45 | |||
E607WN | 750-1250 | 40 | forty five-76 | |||
E610WN | 750-1250 | 40 | 75-130 |
Spare components and composition of our roots blower:
Package of our Roots Blower
Pack into iron circumstance, two layer,blower entire body and motor in reduce layer, inlet/out silencer and so on in higher layer
Roots blower pack strategy identical as iron scenario, just alter to Fumigation Free Plywood Situation
Our manufacturing unit is a professional manufacturer of Roots blowers which has more than 20 years’ experience in equipment
producing. It is situated in Xihu (West Lake) Dis. East Industrial Park, 50 kilometers to the east of Shan EPT provincial
money— HangZhou. Our company also has handy visitors transportation, as it is 15 kilometers away from
Diaozhen City station of HangZhou-HangZhou expressway, and 30 kilometers away from East HangZhou station of
ZheJiang -ZheJiang expressway.The foremost product of our business is ESR -variety Roots Blower. The roots
vacuum pump is a new kind of higher-efficiency roots blower, which is developed independently primarily based on the
domestic and foreign advanced systems. Many patented technologies have been adopted on Roots
Blower, and thus we have produced significant consequences in energy conservation and noise reduction, and so on.. So considerably, our
firm has invested more than thirty,000,000 RMB to introduce these kinds of advanced skilled products as
horizontal machining heart, vertical machining heart, two-way CNC surface area planer, CNC lathe, CNC milling
equipment, CNC planer, airplane grinder, cylindrical grinding device, and a few coordinates testing device.
Aside from, we have taken various measures to standardize the method movement these kinds of as doing work and cooperating
with a lot of scientific research units, colleges and universities at residence and overseas. We also repeatedly try out to
take in and improve the domestic superior production technologies, so as to promote the upgrading and
optimization of the item and make the solution high quality get to the superior stage at house and overseas.
ESR -type Roots Blower involves several series such as A few-leaves Variety, Two-leaves Type and Centrifugal
Type,which can be further divided to hundreds of types. The goods are extensively utilized in sewage therapy,
pneumatic conveying,vacuum packaging, aquaculture, food processing, EPT power, petrochemical, cement,
mining and other industries. Our items have such rewards as low noise, energy saving, secure top quality,
and extended service life, and so forth.. With the income outlets throughout the domestic cash metropolitan areas, our merchandise promote properly all
over the country, and have been exported to North The united states,Russia, Malaysia, Indonesia, Vietnam, South Africa
and some other international locations. Getting acquired the ISO9001 International Good quality Method Certification, we have
set up and improved the quality assurance of the items planning, producing, and set up.
From the approach of layout, investigation and growth to the completed goods, we have acquired the complete
procedure controlled independently, hence offering the complete foundation and trustworthiness guarantee for the goods security
and toughness. Obtaining a perfect income community and following-income support, we offer our consumers with greater-
top quality and more effective provider.All workers of our business sincerely welcome the wide masses of friends to
guide, and negotiate business with us.
Our Roots Blower Workshop
Doosn Horzitonal Machine Heart
The Application of the Roots Blower
Servicing and inspection
(one) Check out all fasteners and locating pins circumstances regardless of whether they are loosening.
(2) Constantly check no matter whether the leakage phenomenon of the physique.
(3) Pay consideration to lubrication, amount of grease and noises when managing,
decide no matter whether it operates beneath the essential problems.
(4) Lubricant & grease: The lubricant is for medium load industrial gear oil
(quality 220, kinematic viscosity of 198 ~ 242mm2 / s 40ºC, flash point ≥ 200ºC)
The grease is butter (artificial lithium grease penetration 220-250, fall point ≥
190ºC). Substitute the lubricant and grease following first two hundred several hours working, and replace
again after a moth operating. Afterwards, substitute the lubricant and grease according to the
setting and lubricant (grease) high quality propose a suited EPT for a few
months.
(5) Often check the inlet air filter, cleanse or substitute the filter in time.
(6) Blower overload at times not right away exhibited, so shell out interest to
the intake and exhaust pressure, bearing temperature and the current improve trends
of motor to decide whether the blower works generally
(seven) Ahead of disassembling the blower, the assembling relation and dimensions
should be recorded or calculated, make marks on parts to ensure the original
specifications soon after assembling.
(eight) When newly device or overhaul, the oil tank ought to be cleaned ahead of use
and suggest replace all grease after eight several hours running.
Typical failure explanation and troubleshooting
No | Failure | Achievable causes | Elimination approaches |
1 | Friction between the impeller |
(1) Impurities on the impeller, resulting in the gap is also small (2) Equipment wear, resulting in a massive backlash (three) The equipment is not properly fastened, can not preserve the impeller synchronization (4) Bearing dress in resulting in clearance rising. |
(one) Remove dust and examine whether there is damage elements (two) Modify the gear gap, exchange the gears if the gear backlash is better than the common 30% to fifty% (3)Re-assemble the gears, hold the taper make contact with region is to seventy five% (4)Replace the bearing |
two | Collision in between impeller and wall, the impeller best and casing |
(1) Installation hole is not right (2) operating stress is also large, exceeding the specified worth (three) Running temperature is way too high (4) Casing or foundation deformation, positioning enthusiast failure (5) Bearing axial spot is not excellent |
(1) Change the gap (two) Identify leads to of overloading, decreased the strain to the specified benefit (3) Examine the installation accuracy and decrease the pipe pressure (4) Check and repair bearings, and to guarantee the clearance (five)Relocation |
three | Temperature too large |
(one) Oil in tank is as well a lot, also thick or way too filthy (2) Filter or silencer is blocked (3)The strain is greater than the specified benefit (4)Too much wear of the impeller, huge hole (five)Poor ventilation, indoor temperature is high, ensuing in inlet air’s large temperature (6) The rotating pace is also reduced,consequence in the belt slipping. |
(1)Decrease the oil level or count on oil (2)Take away of blocking objects (3)Decreasing the force by means of the blower (4)Repair its clearance (five)Open vents to lessen place temperature (6) Boost velocity to prevent the belt slipping. |
4 | Insufficient movement |
(1) The inlet filter is blocked (two) Impeller dress in and the hole raises as well a lot (three) Belt slipping (4) Huge imports force reduction (five) Pipeline air flow leakage |
(one) Clear the filter dust and obstruction (two) Fix the hole (three)Tighten the belt and improve the amount of belts (4)Alter the inlet pressure to the specified price (five) Check and repair the pipeline |
5 | Oil leaking or oil leaking into the enclosure |
(one)Large tank placement lead to leakage from the discharge port (2) Seal dress in, resulting in shaft oil spills (3) The pressure is higher than the specified value |
(one)Lessen the oil stage (two)Change the seals (3)Obvious the air vents, 2mm diameter faucet is mounted in the middle chamber, open up the faucet underneath the wall |
6 | Irregular vibration and noise |
(one)Bearing clearance exceeds the specified worth or bearing use (two) The equipment backlash is also huge, not in a restricted fastened (three) The overseas 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, (5) Friction between the impeller and the inlet housing caused by overheating (six) Unbalance of the impeller brought on by fouling or overseas physique (seven) Anchor bolts or other fasteners are loosened |
(1)Change bearings or bearing seat (two)Reassemble equipment and make certain backlash (3)Cleaning blower, verify the circumstance is damaged (4)Examine the again pressure, check out the wheel and alter gap (5)Check out the filter and back again stress, enhance the gap amongst the impeller inlet and the casing (six)Thoroughly clean the impeller and the casing, to make sure that the impeller clearance work (seven) Tighten the anchor bolts and leveling the foundation. |
7 | Motor overload |
(1)In comparison with the necessary stress, the strain variation is large that the back again strain or the inlet force is higher (two) In comparison with the equipment specifications, blower stream is too massive, so its pressure will increase (3)Inlet filter is blocked, or outlet pipe is obstructed or blocked (4) Collusion or friction (trapped) rotating elements (five) The oil stage is also substantial (6) Narrow V-belt is overheat, vibration is as well massive, or pulley is also little |
(1) Reduce the stress to the specified price (2) Exhaust the excess gas into the atmosphere or decrease the blower pace (3) Take away the obstructions (4)Quickly shut down, examine the cause (five) Change the oil to the appropriate stage (6) Check out the belt rigidity, and replaced it with large diameter pulley. |
Our Support
one. Pre sell service two. Right after offer service
a. advise the suitable model c. on the web complex assist,
b. manufacturing facility tour d. entire daily life spare areas and techinical assistance
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 purposes only and for indicating item use and compatibility. Our company and the shown EPT components contained herein are not sponsored, approved, or manufactured by the OEM. /