We – EPG Team the most significant couplings and gears factory in China with 5 different branches. For far more information: Cellular/whatsapp/telegram/Kakao us at: 0086-13083988828 /
We make all types of roots blower, centrifugal blower, Our Major products are as beneath:
Variety | Diameter | Rate of flow | Pressure |
ESR-MJ(Intensive Kind) | Φ50~Φ300mm | .five~140m³/min | nine.8KPa~ninety eight.8Kpa |
ESR(Regular Type) | Φ50~Φ350mm | .5~140m³/min | 9.8KPa~seventy eight.4Kpa |
ESR-H(Large-force Kind) | Φ50~Φ350mm | .7~160m³/min | 58.8KPa~98.8Kpa |
ESR-V(Vacuum Pump) | Φ50~Φ350mm | .five~160m³/min | nine.8KPa~53.3Kpa |
EL Sequence | Φ200~Φ600mm | 20.3~750m³/min | nine.8KPa~58.8Kpa |
Multistage Centrifugal Blower or C-Series |
Φ250~Φ500mm | 50~500m³/min | nine.8KPa~98Kpa |
ERR-ERG Kind | Φ250~Φ500mm | one hundred twenty~420m³/min | 9.8KPa~98.8Kpa |
The doing work theory of the three-blade roots blower: two a few-lobed rotors are organized in the cavity, and the
suction port and the discharge port are opened on both sides of the cavity. Through 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 gasoline in the chamber is pushed to accomplish the
goal of blowing.
Feature of our roots blower:
1. Large adjustment of the air volume
2. Reduced Sounds
3. High efficiency
4. Lower power cosumption
5. Lengthy time lifestyle
6. Trustworthy running, straightforward routine maintenance,tiny footprint
The parameters of our roots blower:
Sort | Ratary Velocity (r/min) |
Pressure Rise (Kpa) |
Capacity (m/min) |
Shaft Energy (Kw) |
Motor | Unit Maximn Excess weight(Kg) |
Electricity (Kw) |
||||||
ESR-50 | 1100-2120 | nine.eight-fifty eight.8 | .65-2.fifty eight | .3-three.fifty four | .75-four | 128-158 |
ESR-65 | 1100-2130 | 9.8-58.8 | .94-three.66 | .38-four.46 | .seventy five-5.five | one hundred fifty five-185 |
ESR-eighty | 1140-1900 | nine.8-fifty eight.eight | two.34-five.forty three | one.04-seven.forty two | 2.2-eleven | a hundred and fifty five-277 |
ESR-one hundred | 1060-1980 | nine.eight-fifty eight.8 | four.57-9.05 | 1.35-12.15 | 3-fifteen | 309-377 |
ESR-a hundred twenty five | 980-1850 | 9.8-fifty eight.8 | 5.35-twelve.four | 1.65-5.19 | five.5-eighteen.five | 408-451 |
ESR-125C | 970-1830 | nine.8-fifty eight.eight | 7.five-17.57 | three.2-18.five | 4-22 | 408-451 |
ESR-one hundred fifty | 810-1730 | nine.8-fifty eight.8 | ten.37-27.15 | 3.eighty four-40.82 | seven.five-forty five | 688-848 |
ESR-175 | 970-1520 | nine.8-fifty eight.eight | 19.65-36.sixty five | seven.two-45.ninety five | 11-fifty five | 980-1080 |
ESR-200B | 740-1450 | nine.eight-fifty eight.eight | 19.65-44.eight | ten.15-sixty.forty four | fifteen-seventy five | 1272-1546 |
ESR-200 | 810-1480 | 9.8-fifty eight.eight | 27.sixty five-59.two | 8.05-80,twelve | fifteen-90 | 1272-1546 |
ESR-250B | 1100-1480 | nine.eight-fifty eight.8 | 54.seventy seven-seventy seven.55 | 19.97-ninety.97 | thirty-one hundred ten | 1490-2454 |
ESR-250 | 990-1480 | nine.8-58.eight | 61.4-ninety seven.52 | 20.1-117.three | 30-132 | 1490-2454 |
ESR-three hundred | 990-1480 | 9.eight-58.8 | 87.one-138.1 | 26.four-167.eight | 37-185 | 3326-3446 |
ESR-350 | 730-1480 | 9.8-fifty eight.eight | seventy eight.forty one-177.31 | 55-250 | ||
ESR-50H | 1230-2120 | 63.7-ninety eight | .forty five-2.02 | 2.05-6.twelve | three-7.5 | 160–170 |
ESR-65H | 1240-2130 | sixty three.7-98 | .78-2.fifty three | two.89-7.fifty five | 4-11 | 198-230 |
ESR-80H | 1140-1900 | 63.7-98 | one.82-4.fifty five | four.09-10.one | five.5-fifteen | 316-326 |
ESR-100H | 1060-1980 | sixty three.seven-98 | two.65-eight.06 | 6.36-seventeen.two | 7.five-22 | 398-459 |
ESR-125H | 980-1850 | sixty three.seven-ninety eight | 4.sixty four-eleven.23 | 8.ninety two-24.2 | eleven-30 | 544-630 |
ESR-150H | 810-1730 | 63.seven-ninety eight | 9.53-25.seventy six | seventeen.sixteen-sixty five | 18.five-75 | 752-1571 |
ESR-200H | 810-1480 | 63.7-98 | 25.34-56.ninety two | 42.34-one hundred twenty | 55-132 | 1426-1934 |
ESR-250H | 990-1480 | sixty three.7-ninety eight | 58-93.7 | 83.two-205 | ninety-220 | 2980-3468 |
ESR300H | 990-1480 | sixty three.7-ninety eight | 86.nine-134.one | 114.7-270 | 132-280 | 3476-3998 |
ERF-245 | 650-980 | 9.8-ninety eight | forty seven.5-97.four | 16-183 | 18.5-200 | 3630-3690 |
ERF-250 | 650-980 | nine.eight-98 | 61.6-a hundred and twenty.4 | 19-227 | 22-250 | 4450-4500 |
ERF-290 | 650-980 | nine.eight-seventy eight.4 | ninety two.3-128 | 22-213 | thirty-250 | 4890-4710 |
ERF-295 | 650-980 | 9.8-78.4 | ninety seven.3-152.five | 23-227 | thirty-250 | 4890-4880 |
ERF-297 | 650-980 | nine.8-78.four | 87.five-167.six | 26-249 | 30-280 | 5330-5520 |
ERF-three hundred | 650-980 | 9.eight-78.four | 101.five-188.seven | 29-278 | 37-315 | 5330-5520 |
ERF-350 | 650-980 | nine.8-78.4 | 126-224.nine | 34-249 | forty five-280 | 5210-6470 |
ERG-three hundred | 590-730 | nine.eight-ninety eight | 128.three-196 | 38-362 | 45-four hundred | 9440-15710 |
ERG-350 | 590-730 | nine.8-ninety eight | 159.three-231.6 | 43-420 | fifty five-450 | 9700-1571 |
ERG-four hundred | 590-730 | 9.8-eighty three.3 | 203.one-290.9 | fifty two-449 | seventy five-five hundred | 10090-11390 |
ERG-445 | 590-730 | 9.eight-seventy three.five | 229.7-327.8 | fifty eight-477 | seventy five-560 | 10600-12230 |
ERG-450 | 590-730 | nine.eight-seventy three.five | 262.four-366.two | sixty four-496 | seventy five-560 | 10600-12230 |
ERG-five hundred | 590-730 | 9.8-sixty three.seven | 327.four-452.4 | 78-529 | ninety-560 | 12790-14620 |
ERF-240-V | 650-980 | -9.eight- -49 | 38.1-78 | thirteen-76 | eighteen.5-90 | 3420-3285 |
ERF-245-V | 650-980 | -nine.8- -49 | 47.5-ninety seven.4 | sixteen-95 | 22-110 | 3425-3360 |
ERF-250-V | 650-980 | -nine.8- -49 | 63-a hundred and twenty | 19-117 | 22-132 | 3910-3830 |
ERF-290-V | 650-980 | -nine.eight- -49 | 72.6-144 | 22-136 | 30-a hundred and sixty | 4415-4270 |
ERF-295-V | 650-980 | -9.8- -forty nine | 76.6-152 | 23-a hundred forty five | thirty-a hundred and sixty | 4425-4485 |
ERF-297-V | 650-980 | -9.eight- -49 | eighty four.three-166.8 | 26-160 | thirty-one hundred eighty | 5000-4980 |
ERF-300-V | 650-980 | -9.8- -forty nine | 97-192 | 29-178 | 37-200 | 5000-4980 |
ERF-350-V | 650-980 | -nine.eight- -49 | 116-225 | 34-209 | forty five-250 | 5400-5700 |
ERG-300V | 590-730 | -nine.eight- -49 | 133-193 | 38-184 | 45-220 | 7800-9100 |
ERG-350V | 590-730 | -9.eight- -49 | 163-231 | forty three-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- -49 | 224.eight-326.9 | fifty eight-303 | seventy five-355 | 9900-10130 |
ERG-450V | 590-730 | -nine.8- -forty nine | 255-365 | sixty four-335 | 75-400 | 11230-11300 |
ERG-500V | 590-730 | -9.8- -forty nine | 314-452 | 78-412 | 132-450 | 13630-13850 |
ERF-245W | 650-980 | -13.three- -fifty three.3 | fifty three.five-101 | 21.five-102 | thirty-one hundred ten | 3630-3360 |
ERF-250W | 650-980 | -thirteen.three- -fifty three.three | 69-127 | 26.5-127 | thirty-one hundred sixty | 3985-4115 |
ERF-290W | 650-980 | -thirteen.3- -53.3 | 82.six-a hundred and fifty | 30.five-149 | 37-185 | 4340-4580 |
ERF-295W | 650-980 | -13.3- -fifty three.3 | 87-158 | 32-158 | 37-185 | 4440-4580 |
ERF-297W | 650-980 | -13.three- -fifty three.three | 95-174 | 36-174 | forty five-two hundred | 5230-5130 |
ERF-300W | 650-980 | -thirteen.three- -fifty three.3 | 109-195 | forty-193 | 55-220 | 5230-5130 |
ERF-350W | 650-980 | -thirteen.three- -fifty three.three | 129-230 | fifty-230 | 75-250 | 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 | -13.3- -53.3 | 168-234.four | 59-235.five | seventy five-280 | 9500-9600 |
ERG-400W | 590-730 | -thirteen.three- -fifty three.three | 220-276.six | 71-292 | 90-315 | 9900-10130 |
ERG-445W | 590-730 | -thirteen.3- -53.3 | 244-294.six | 82-331 | 90-four hundred | 11230-11300 |
ERG450W | 590-730 | -13.three- -53.three | 275-368.five | ninety one-366 | one hundred ten-400 | 11230-11300 |
ETRF-250 (240,250) |
650-980 | 98-196 | 64.8-112 | a hundred thirty five-355 | one hundred sixty-400 | 8700-8600 |
ETRF-295 (245,295) |
650-980 | 98-196 | eighty.eight-139 | 167-439 | 185-500 | 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-four hundred (300,400) |
590-740 | ninety eight-176.4 | 205-273 | 380-773 | 450-900 | 21350-24200 |
ETRG-450 (350,450) |
590-740 | 98-176.four | 263-428 | 476-955 | 560-1000 | 24200-27600 |
ETRF-250W (240,250) |
650-980 | -53.3–80 | 72-121 | 75.six-121 | ninety-a hundred and sixty | 6100-6470 |
ETRF-295W (245/295) |
650-980 | -53.three–80 | 93.eight-154 | ninety nine.five-186 | a hundred and 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 | 9.eight-fifty eight.8 | 54.2-a hundred thirty | 18-151 | 45-185 | 3595 |
EL82WDB | 580-980 | 9.eight-fifty eight.eight | seventy two.8-161 | 22-191 | 45-220 | 3860 |
EL83WDA | 580-980 | nine.8-58.nine | one zero one-213 | 28.5-202 | forty five-220 | 4300 |
EL84WDA | 580-980 | 9.eight-58.8 | 129-267 | 35.four-252 | 45-280 | 4720 |
EL93WDA | 580-730 | nine.8-forty nine | 230-329 | 56.4-311 | seventy five-355 | 7765 |
EL94WDA | 580-730 | nine.8-forty nine | 263-373 | sixty four-353 | 75-four hundred | 8130 |
EL95WDA | 490-580 | 9.eight-fifty eight.eight | 308-434 | eighty one.4-414 | ninety-450 | 11500 |
EL96WDA | 580 | fifty eight.eight | 381 | 497 | 560 | 11500 |
E397WN | 1000-1650 | forty | five-9 | |||
E408WN | 870-1650 | 40 | ten-22 | |||
E517WN | 980-1580 | forty | 20-30 | |||
E520WN | 930-1550 | 40 | 24-forty five | |||
E607WN | 750-1250 | forty | forty five-76 | |||
E610WN | 750-1250 | forty | 75-130 |
Spare parts and framework of our roots blower:
Package deal of our Roots Blower
Pack into iron scenario, two layer,blower physique and motor in reduced layer, inlet/out silencer and so on in higher layer
Roots blower pack method identical as iron case, just alter to Fumigation Free Plywood Case
Our manufacturing unit is a expert manufacturer of Roots blowers which has above 20 years’ experience in machinery
manufacturing. It is situated in Xihu (West Lake) Dis. East Industrial Park, fifty kilometers to the east of Shan EPT provincial
capital— HangZhou. Our firm also has handy 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 leading product of our firm is ESR -type Roots Blower. The roots
vacuum pump is a new kind of large-efficiency roots blower, which is created independently primarily based on the
domestic and international superior technologies. Numerous patented technologies have been adopted on Roots
Blower, and therefore we have made important results in power conservation and noise reduction, and so on.. So considerably, our
firm has invested more than 30,000,000 RMB to introduce this kind of advanced expert products as
horizontal machining centre, vertical machining middle, two-way CNC surface area planer, CNC lathe, CNC milling
machine, CNC planer, plane grinder, cylindrical grinding device, and a few coordinates testing device.
Aside from, we have taken a variety of steps to standardize the process flow such as operating and cooperating
with several scientific research units, faculties and universities at property and abroad. We also continuously try out to
absorb and increase the domestic sophisticated creation technologies, so as to promote the upgrading and
optimization of the solution and make the merchandise good quality get to the sophisticated amount at home and overseas.
ESR -kind Roots Blower includes several collection these kinds of as Three-leaves Kind, Two-leaves Kind and Centrifugal
Sort,which can be more divided to hundreds of types. The goods are broadly employed in sewage treatment,
pneumatic conveying,vacuum packaging, aquaculture, food processing, EPT energy, petrochemical, cement,
mining and other industries. Our items have such advantages as lower sound, strength conserving, steady good quality,
and lengthy support daily life, etc.. With the revenue outlets throughout the domestic money towns, our products promote nicely all
more than the region, and have been exported to North The us,Russia, Malaysia, Indonesia, Vietnam, South Africa
and some other countries. Possessing received the ISO9001 Intercontinental High quality Technique Certification, we have
set up and enhanced the high quality assurance of the items planning, manufacturing, and set up.
From the approach of design, analysis and improvement to the concluded products, we have got the entire
process managed independently, therefore providing the total foundation and reliability assure for the goods steadiness
and toughness. Possessing a perfect income network and following-revenue services, we provide our customers with larger-
high quality and a lot more productive support.All staff of our organization sincerely welcome the wide masses of buddies to
guide, and negotiate organization with us.
Our Roots Blower Workshop
Doosn Horzitonal Machine Middle
The Application of the Roots Blower
Maintenance and inspection
(1) Check all fasteners and finding pins problems no matter whether they are loosening.
(two) Often check out regardless of whether the leakage phenomenon of the human body.
(3) Spend attention to lubrication, amount of grease and noises when operating,
figure out regardless of whether it operates under the necessary conditions.
(4) Lubricant & grease: The lubricant is for medium load industrial equipment oil
(quality 220, kinematic viscosity of 198 ~ 242mm2 / s 40ºC, flash level ≥ 200ºC)
The grease is butter (artificial lithium grease penetration 220-250, fall point ≥
190ºC). Replace the lubricant and grease after initial two hundred hrs running, and change
once more soon after a moth working. Later on, exchange the lubricant and grease in accordance to the
setting and lubricant (grease) top quality suggest a suited EPT for three
months.
(five) Constantly check the inlet air filter, thoroughly clean or exchange the filter in time.
(6) Blower overload sometimes not instantly exhibited, so pay attention to
the ingestion and exhaust strain, bearing temperature and the existing boost tendencies
of motor to establish whether the blower works generally
(seven) Ahead of disassembling the blower, the assembling relation and dimensions
must be recorded or measured, make marks on elements to make sure the unique
demands soon after assembling.
(8) When recently machine or overhaul, the oil tank ought to be cleaned ahead of use
and propose change all grease right after eight hours operating.
Widespread failure cause and troubleshooting
No | Failure | Achievable factors | Elimination strategies |
1 | Friction between the impeller |
(1) Impurities on the impeller, ensuing in the gap is too modest (two) Equipment wear, resulting in a massive backlash (3) The gear is not effectively set, can not keep the impeller synchronization (four) Bearing wear ensuing in clearance growing. |
(one) Remove grime and verify whether there is injury components (2) Modify the gear hole, substitute the gears if the gear backlash is increased than the regular 30% to 50% (three)Re-assemble the gears, maintain the taper contact location is to seventy five% (4)Exchange the bearing |
two | Collision amongst impeller and wall, the impeller top and casing |
(1) Installation hole is not proper (2) functioning strain is as well high, exceeding the specified worth (three) Running temperature is also substantial (four) Casing or foundation deformation, positioning fan failure (five) Bearing axial area is not great |
(one) Adjust the gap (2) Determine causes of overloading, diminished the strain to the specified benefit (3) Verify the set up precision and lessen the pipe tension (4) Check out and restore bearings, and to make sure the clearance (five)Relocation |
three | Temperature as well large |
(one) Oil in tank is also considerably, way too thick or too filthy (2) Filter or silencer is blocked (3)The force is greater than the specified price (4)Abnormal put on of the impeller, huge hole (5)Bad air flow, indoor temperature is substantial, resulting in inlet air’s high temperature (6) The rotating speed is as well minimal,end result in the belt slipping. |
(one)Lessen the oil stage or depend on oil (2)Eliminate of blocking objects (three)Decreasing the strain via the blower (4)Fix its clearance (five)Open vents to reduce space temperature (six) Boost pace to stop the belt slipping. |
4 | Insufficient flow |
(one) The inlet filter is blocked (2) Impeller use and the gap increases also a lot (three) Belt slipping (4) Large imports stress reduction (5) Pipeline ventilation leakage |
(1) Clear the filter dust and obstruction (two) Mend the gap (three)Tighten the belt and improve the amount of belts (four)Alter the inlet force to the specified value (5) Examine and repair the pipeline |
five | Oil leaking or oil leaking into the enclosure |
(one)High tank situation lead to leakage from the discharge port (two) Seal use, ensuing in shaft oil spills (three) The pressure is greater than the specified price |
(1)Lessen the oil degree (two)Change the seals (three)Clear the air vents, 2mm diameter faucet is mounted in the center chamber, open the faucet underneath the wall |
six | Irregular vibration and sounds |
(1)Bearing clearance exceeds the specified value or bearing wear (two) The gear backlash is way too massive, not in a limited 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 brought on by overload, (5) Friction among the impeller and the inlet housing brought on by overheating (six) Unbalance of the impeller triggered by fouling or international physique (seven) Anchor bolts or other fasteners are loosened |
(one)Change bearings or bearing seat (two)Reassemble gear and make certain backlash (3)Cleansing blower, examine the case is broken (4)Examine the again strain, check the wheel and alter hole (5)Check the filter and again stress, increase the hole between the impeller inlet and the casing (6)Cleanse the impeller and the casing, to make certain that the impeller clearance operate (7) Tighten the anchor bolts and leveling the base. |
seven | Motor overload |
(1)In comparison with the needed pressure, the strain variation is large that the back force or the inlet stress is higher (two) When compared with the products demands, blower circulation is as well huge, so its force raises (3)Inlet filter is blocked, or outlet pipe is obstructed or blocked (4) Collusion or friction (stuck) rotating parts (5) The oil stage is also high (six) Slim V-belt is overheat, vibration is too massive, or pulley is as well small |
(1) Decrease the force to the specified benefit (2) Exhaust the surplus gasoline into the atmosphere or reduce the blower velocity (3) Take away the obstructions (four)Immediately shut down, examine the reason (five) Change the oil to the proper degree (six) Examine the belt rigidity, and replaced it with big diameter pulley. |
Our Service
1. Pre market service two. After offer service
a. suggest the suited model c. on the internet technological support,
b. factory tour d. whole life spare parts and techinical assist
Gurantee
12 months gurantee for our roots blowers
/ The use of original equipment manufacturer’s (OEM) element figures or trademarks , e.g. CASE® and John Deere® are for reference purposes only and for indicating item use and compatibility. Our business and the outlined EPT components contained herein are not sponsored, accepted, or manufactured by the OEM. /