We – EPG Team the largest couplings and gears manufacturing facility in China with five diverse branches. For more information: Mobile/whatsapp/telegram/Kakao us at: 0086-13083988828 /
We make all types of roots blower, centrifugal blower, Our Principal merchandise are as beneath:
Variety | Diameter | Charge of circulation | Strain |
ESR-MJ(Intense Variety) | Φ50~Φ300mm | .5~140m³/min | nine.8KPa~98.8Kpa |
ESR(Regular Sort) | Φ50~Φ350mm | .5~140m³/min | nine.8KPa~78.4Kpa |
ESR-H(High-stress Type) | Φ50~Φ350mm | .seven~160m³/min | fifty eight.8KPa~ninety eight.8Kpa |
ESR-V(Vacuum Pump) | Φ50~Φ350mm | .five~160m³/min | 9.8KPa~53.3Kpa |
EL Sequence | Φ200~Φ600mm | twenty.3~750m³/min | nine.8KPa~58.8Kpa |
Multistage Centrifugal Blower or C-Series |
Φ250~Φ500mm | 50~500m³/min | 9.8KPa~98Kpa |
ERR-ERG Variety | Φ250~Φ500mm | one hundred twenty~420m³/min | nine.8KPa~ninety eight.8Kpa |
The working theory of the 3-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 way of 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 obtain the
objective of blowing.
Function of our roots blower:
one. Huge adjustment of the air volume
2. Lower Sound
three. Higher effectiveness
four. Lower energy cosumption
five. Long time life
six. Reliable managing, simple routine maintenance,little footprint
The parameters of our roots blower:
Kind | Ratary Speed (r/min) |
Stress Rise (Kpa) |
Capability (m/min) |
Shaft Energy (Kw) |
Motor | Unit Maximn Bodyweight(Kg) |
Electrical power (Kw) |
||||||
ESR-50 | 1100-2120 | 9.eight-fifty eight.8 | .65-2.fifty eight | .three-three.fifty four | .75-four | 128-158 |
ESR-65 | 1100-2130 | 9.eight-fifty eight.eight | .ninety four-3.66 | .38-four.forty six | .seventy five-5.5 | a hundred and fifty five-185 |
ESR-80 | 1140-1900 | nine.eight-fifty eight.8 | 2.34-5.43 | 1.04-seven.42 | 2.2-11 | 155-277 |
ESR-a hundred | 1060-1980 | nine.eight-fifty eight.eight | 4.57-9.05 | one.35-twelve.15 | three-15 | 309-377 |
ESR-one hundred twenty five | 980-1850 | 9.eight-58.8 | 5.35-12.4 | one.sixty five-five.19 | 5.five-18.5 | 408-451 |
ESR-125C | 970-1830 | nine.8-58.eight | 7.five-seventeen.57 | 3.two-18.five | 4-22 | 408-451 |
ESR-one hundred fifty | 810-1730 | nine.eight-58.eight | ten.37-27.15 | three.eighty four-40.82 | seven.five-45 | 688-848 |
ESR-one hundred seventy five | 970-1520 | nine.eight-58.eight | 19.sixty five-36.65 | 7.2-forty five.95 | eleven-55 | 980-1080 |
ESR-200B | 740-1450 | nine.8-fifty eight.eight | 19.65-44.8 | ten.15-sixty.forty four | 15-75 | 1272-1546 |
ESR-two hundred | 810-1480 | nine.8-58.8 | 27.sixty five-59.2 | eight.05-eighty,twelve | fifteen-ninety | 1272-1546 |
ESR-250B | 1100-1480 | 9.8-fifty eight.8 | 54.seventy seven-77.55 | 19.ninety seven-90.ninety seven | thirty-110 | 1490-2454 |
ESR-250 | 990-1480 | nine.8-fifty eight.8 | sixty one.four-97.52 | 20.one-117.three | 30-132 | 1490-2454 |
ESR-300 | 990-1480 | nine.eight-58.8 | 87.1-138.1 | 26.four-167.8 | 37-185 | 3326-3446 |
ESR-350 | 730-1480 | 9.8-fifty eight.8 | seventy eight.41-177.31 | 55-250 | ||
ESR-50H | 1230-2120 | sixty three.7-98 | .forty five-two.02 | two.05-6.12 | three-7.five | 160–170 |
ESR-65H | 1240-2130 | sixty three.7-ninety eight | .seventy eight-2.fifty three | 2.89-seven.55 | four-11 | 198-230 |
ESR-80H | 1140-1900 | 63.seven-ninety eight | 1.82-four.55 | four.09-10.1 | five.five-fifteen | 316-326 |
ESR-100H | 1060-1980 | 63.7-98 | 2.65-eight.06 | 6.36-seventeen.two | seven.five-22 | 398-459 |
ESR-125H | 980-1850 | 63.7-ninety eight | four.64-eleven.23 | eight.92-24.2 | 11-thirty | 544-630 |
ESR-150H | 810-1730 | sixty three.seven-98 | 9.53-twenty five.76 | seventeen.16-sixty five | eighteen.5-75 | 752-1571 |
ESR-200H | 810-1480 | 63.seven-98 | twenty five.34-fifty six.92 | forty two.34-a hundred and twenty | fifty five-132 | 1426-1934 |
ESR-250H | 990-1480 | 63.seven-ninety eight | 58-ninety three.seven | 83.2-205 | 90-220 | 2980-3468 |
ESR300H | 990-1480 | 63.7-ninety eight | 86.9-134.1 | 114.7-270 | 132-280 | 3476-3998 |
ERF-245 | 650-980 | 9.eight-98 | forty seven.five-97.four | 16-183 | eighteen.5-200 | 3630-3690 |
ERF-250 | 650-980 | nine.eight-ninety eight | sixty one.6-a hundred and twenty.four | 19-227 | 22-250 | 4450-4500 |
ERF-290 | 650-980 | 9.8-78.four | 92.3-128 | 22-213 | 30-250 | 4890-4710 |
ERF-295 | 650-980 | nine.8-78.4 | ninety seven.three-152.5 | 23-227 | 30-250 | 4890-4880 |
ERF-297 | 650-980 | 9.eight-seventy eight.four | 87.5-167.six | 26-249 | thirty-280 | 5330-5520 |
ERF-300 | 650-980 | nine.8-seventy eight.4 | one zero one.five-188.7 | 29-278 | 37-315 | 5330-5520 |
ERF-350 | 650-980 | nine.eight-78.4 | 126-224.nine | 34-249 | forty five-280 | 5210-6470 |
ERG-300 | 590-730 | 9.8-ninety eight | 128.three-196 | 38-362 | forty five-400 | 9440-15710 |
ERG-350 | 590-730 | 9.eight-98 | 159.three-231.six | forty three-420 | 55-450 | 9700-1571 |
ERG-400 | 590-730 | 9.eight-83.three | 203.1-290.nine | fifty two-449 | seventy five-five hundred | 10090-11390 |
ERG-445 | 590-730 | nine.eight-73.five | 229.seven-327.8 | fifty eight-477 | 75-560 | 10600-12230 |
ERG-450 | 590-730 | 9.eight-73.five | 262.4-366.2 | 64-496 | seventy five-560 | 10600-12230 |
ERG-500 | 590-730 | nine.8-63.seven | 327.4-452.4 | seventy eight-529 | ninety-560 | 12790-14620 |
ERF-240-V | 650-980 | -nine.8- -forty nine | 38.1-seventy eight | 13-seventy six | eighteen.five-ninety | 3420-3285 |
ERF-245-V | 650-980 | -nine.eight- -49 | forty seven.five-97.four | 16-95 | 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.8- -49 | seventy two.6-a hundred and forty four | 22-136 | thirty-160 | 4415-4270 |
ERF-295-V | 650-980 | -nine.eight- -49 | seventy six.six-152 | 23-one hundred forty five | 30-160 | 4425-4485 |
ERF-297-V | 650-980 | -9.8- -forty nine | eighty four.three-166.eight | 26-a hundred and sixty | thirty-180 | 5000-4980 |
ERF-300-V | 650-980 | -nine.8- -forty nine | ninety seven-192 | 29-178 | 37-200 | 5000-4980 |
ERF-350-V | 650-980 | -9.eight- -49 | 116-225 | 34-209 | forty five-250 | 5400-5700 |
ERG-300V | 590-730 | -nine.eight- -49 | 133-193 | 38-184 | forty five-220 | 7800-9100 |
ERG-350V | 590-730 | -nine.8- -forty nine | 163-231 | forty three-216 | 55-250 | 9500-9470 |
ERG-400V | 590-730 | -nine.eight- -49 | 199-290 | 52-269 | seventy five-315 | 9900-10130 |
ERG-445V | 590-730 | -nine.eight- -forty nine | 224.8-326.nine | fifty eight-303 | 75-355 | 9900-10130 |
ERG-450V | 590-730 | -nine.eight- -forty nine | 255-365 | 64-335 | 75-four hundred | 11230-11300 |
ERG-500V | 590-730 | -9.eight- -49 | 314-452 | seventy eight-412 | 132-450 | 13630-13850 |
ERF-245W | 650-980 | -13.3- -53.3 | fifty three.5-one hundred and one | 21.5-102 | 30-a hundred and ten | 3630-3360 |
ERF-250W | 650-980 | -thirteen.three- -53.3 | 69-127 | 26.five-127 | thirty-160 | 3985-4115 |
ERF-290W | 650-980 | -thirteen.3- -53.3 | eighty two.six-150 | 30.5-149 | 37-185 | 4340-4580 |
ERF-295W | 650-980 | -13.3- -53.3 | 87-158 | 32-158 | 37-185 | 4440-4580 |
ERF-297W | 650-980 | -13.3- -53.3 | ninety five-174 | 36-174 | forty five-two hundred | 5230-5130 |
ERF-300W | 650-980 | -thirteen.three- -53.3 | 109-195 | forty-193 | fifty five-220 | 5230-5130 |
ERF-350W | 650-980 | -thirteen.3- -fifty three.three | 129-230 | 50-230 | 75-250 | 5840-5670 |
ERG-300W | 590-730 | -13.three- -fifty three.3 | 142-197 | 52-201 | 75-220 | 9100-9000 |
ERF-350W | 590-730 | -13.3- -53.3 | 168-234.four | fifty nine-235.five | seventy five-280 | 9500-9600 |
ERG-400W | 590-730 | -thirteen.3- -53.three | 220-276.six | seventy one-292 | 90-315 | 9900-10130 |
ERG-445W | 590-730 | -thirteen.three- -fifty three.3 | 244-294.six | 82-331 | 90-four hundred | 11230-11300 |
ERG450W | 590-730 | -thirteen.three- -53.three | 275-368.5 | 91-366 | 110-four hundred | 11230-11300 |
ETRF-250 (240,250) |
650-980 | 98-196 | 64.8-112 | 135-355 | 160-400 | 8700-8600 |
ETRF-295 (245,295) |
650-980 | 98-196 | 80.eight-139 | 167-439 | 185-500 | 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.two | 124-207 | 241-473 | 280-560 | 10700-11110 |
ETRG-four hundred (300,four hundred) |
590-740 | ninety eight-176.four | 205-273 | 380-773 | 450-900 | 21350-24200 |
ETRG-450 (350,450) |
590-740 | 98-176.4 | 263-428 | 476-955 | 560-one thousand | 24200-27600 |
ETRF-250W (240,250) |
650-980 | -fifty three.three–80 | 72-121 | 75.6-121 | ninety-a hundred and sixty | 6100-6470 |
ETRF-295W (245/295) |
650-980 | -53.three–80 | ninety three.eight-154 | ninety nine.5-186 | 110-220 | 7000-6400 |
ETRF-300W (2505/300) |
650-980 | -fifty three.three–80 | 116-189 | one hundred fifteen-220 | 132-250 | 7750-7760 |
EL81WD | 580-980 | 9.eight-58.eight | fifty four.two-130 | eighteen-151 | 45-185 | 3595 |
EL82WDB | 580-980 | 9.8-fifty eight.eight | seventy two.8-161 | 22-191 | forty five-220 | 3860 |
EL83WDA | 580-980 | nine.eight-58.nine | one hundred and one-213 | 28.five-202 | forty five-220 | 4300 |
EL84WDA | 580-980 | 9.eight-58.eight | 129-267 | 35.4-252 | 45-280 | 4720 |
EL93WDA | 580-730 | nine.8-49 | 230-329 | 56.four-311 | seventy five-355 | 7765 |
EL94WDA | 580-730 | 9.eight-49 | 263-373 | 64-353 | seventy five-400 | 8130 |
EL95WDA | 490-580 | 9.eight-fifty eight.eight | 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 | 40 | ten-22 | |||
E517WN | 980-1580 | forty | twenty-thirty | |||
E520WN | 930-1550 | forty | 24-45 | |||
E607WN | 750-1250 | forty | forty five-seventy six | |||
E610WN | 750-1250 | forty | seventy five-130 |
Spare parts and framework of our roots blower:
Deal of our Roots Blower
Pack into iron situation, two layer,blower human body and motor in reduced layer, inlet/out silencer and so forth in upper layer
Roots blower pack method same as iron situation, just alter to Fumigation Free Plywood Scenario
Our manufacturing unit is a skilled company of Roots blowers which has over twenty years’ experience in equipment
production. It is situated in Xihu (West Lake) Dis. East Industrial Park, 50 kilometers to the east of Shan EPT provincial
cash— HangZhou. Our company also has convenient targeted traffic transportation, as it is fifteen kilometers absent from
Diaozhen Town station of HangZhou-HangZhou expressway, and 30 kilometers away from East HangZhou station of
ZheJiang -ZheJiang expressway.The top solution of our business is ESR -kind Roots Blower. The roots
vacuum pump is a new sort of higher-efficiency roots blower, which is developed independently primarily based on the
domestic and international superior systems. Many patented technologies have been adopted on Roots
Blower, and therefore we have manufactured considerable effects in strength conservation and noise reduction, and so forth.. So much, our
firm has invested much more than thirty,000,000 RMB to introduce this sort of advanced expert tools as
horizontal machining middle, vertical machining middle, two-way CNC surface area planer, CNC lathe, CNC milling
machine, CNC planer, airplane grinder, cylindrical grinding equipment, and a few coordinates tests equipment.
Aside from, we have taken a variety of measures to standardize the method flow this kind of as working and cooperating
with numerous scientific research units, schools and universities at house and abroad. We also continuously consider to
take up and improve the domestic innovative production systems, so as to advertise the upgrading and
optimization of the product and make the merchandise top quality get to the innovative stage at property and overseas.
ESR -variety Roots Blower contains a number of collection this kind of as Three-leaves Type, Two-leaves Kind and Centrifugal
Type,which can be further divided to hundreds of kinds. The products are widely utilized in sewage therapy,
pneumatic conveying,vacuum packaging, aquaculture, food processing, EPT power, petrochemical, cement,
mining and other industries. Our merchandise have this kind of benefits as reduced sounds, power preserving, steady top quality,
and prolonged service daily life, and so on.. With the income outlets throughout the domestic money towns, our goods promote well all
over the region, and have been exported to North The usa,Russia, Malaysia, Indonesia, Vietnam, South Africa
and some other countries. Getting got the ISO9001 International High quality Technique Certification, we have
set up and improved the good quality assurance of the products creating, producing, and installation.
From the method of design and style, study and development to the concluded products, we have got the complete
approach controlled independently, hence providing the full basis and trustworthiness assure for the merchandise steadiness
and durability. Obtaining a perfect income community and soon after-income service, we supply our consumers with greater-
top quality and a lot more effective support.All personnel of our firm sincerely welcome the wide masses of pals to
guidebook, and negotiate organization with us.
Our Roots Blower Workshop
Doosn Horzitonal Device Center
The Software of the Roots Blower
Upkeep and inspection
(one) Check out all fasteners and finding pins problems regardless of whether they are loosening.
(2) Often verify whether the leakage phenomenon of the physique.
(3) Pay attention to lubrication, quantity of grease and noises when running,
determine regardless of whether it performs below the essential conditions.
(4) Lubricant & grease: The lubricant is for medium load industrial gear oil
(grade 220, kinematic viscosity of 198 ~ 242mm2 / s 40ºC, flash point ≥ 200ºC)
The grease is butter (synthetic lithium grease penetration 220-250, drop level ≥
190ºC). Replace the lubricant and grease after 1st 200 hrs running, and change
again following a moth working. Later on, exchange the lubricant and grease in accordance to the
atmosphere and lubricant (grease) high quality propose a ideal EPT for three
months.
(5) Constantly examine the inlet air filter, clean or exchange the filter in time.
(six) Blower overload sometimes not immediately shown, so pay out focus to
the consumption and exhaust strain, bearing temperature and the existing boost trends
of motor to figure out regardless of whether the blower functions generally
(seven) Before disassembling the blower, the assembling relation and proportions
should be recorded or measured, make marks on components to make sure the unique
demands following assembling.
(eight) When recently equipment or overhaul, the oil tank need to be cleaned just before use
and propose replace all grease following 8 hrs working.
Typical failure cause and troubleshooting
No | Failure | Attainable motives | Elimination approaches |
1 | Friction in between the impeller |
(one) Impurities on the impeller, ensuing in the hole is too tiny (two) Gear dress in, resulting in a huge backlash (three) The equipment is not effectively set, can not maintain the impeller synchronization (4) Bearing wear ensuing in clearance increasing. |
(one) Take away dust and examine whether or not there is damage components (2) Adjust the gear gap, replace the gears if the equipment backlash is better than the average thirty% to fifty% (three)Re-assemble the gears, keep the taper speak to spot is to 75% (4)Change the bearing |
2 | Collision between impeller and wall, the impeller top and casing |
(one) Set up hole is not appropriate (two) functioning pressure is as well higher, exceeding the specified value (three) Operating temperature is way too higher (4) Casing or base deformation, positioning supporter failure (five) Bearing axial place is not excellent |
(1) Modify the hole (2) Determine brings about of overloading, diminished the strain to the specified value (3) Check the installation precision and reduce the pipe stress (4) Verify and restore bearings, and to make certain the clearance (5)Relocation |
three | Temperature too high |
(one) Oil in tank is as well a lot, as well thick or also filthy (2) Filter or silencer is blocked (three)The stress is larger than the specified benefit (4)Excessive use of the impeller, massive gap (five)Poor air flow, indoor temperature is large, resulting in inlet air’s large temperature (6) The rotating pace is also reduced,result in the belt slipping. |
(one)Minimize the oil stage or rely on oil (two)Remove of blocking objects (3)Decreasing the strain by way of the blower (4)Fix its clearance (five)Open vents to decrease area temperature (six) Boost velocity to stop the belt slipping. |
4 | Insufficient flow |
(one) The inlet filter is blocked (2) Impeller dress in and the hole increases also much (3) Belt slipping (4) Big imports strain reduction (five) Pipeline air flow leakage |
(one) Clean the filter dust and obstruction (2) Mend the gap (three)Tighten the belt and enhance the variety of belts (4)Change the inlet force to the specified worth (five) Check and restore the pipeline |
five | Oil leaking or oil leaking into the enclosure |
(one)High tank position lead to leakage from the discharge port (two) Seal put on, ensuing in shaft oil spills (three) The stress is larger than the specified worth |
(one)Decrease the oil level (two)Change the seals (three)Clear the air vents, 2mm diameter faucet is fastened in the center chamber, open up the faucet below the wall |
6 | Abnormal vibration and noise |
(one)Bearing clearance exceeds the specified value or bearing use (2) The equipment backlash is way too huge, not in a restricted mounted (3) The foreign objects and dust triggered by the impeller and the impeller, the impeller and the housing collision (four) the impeller shaft deformation caused the collision induced by overload, (5) Friction between the impeller and the inlet housing induced by overheating (six) Unbalance of the impeller brought on by fouling or overseas human body (seven) Anchor bolts or other fasteners are loosened |
(one)Substitute bearings or bearing seat (2)Reassemble equipment and make certain backlash (3)Cleaning blower, check out the circumstance is broken (four)Examine the again stress, check out the wheel and alter hole (five)Check the filter and back strain, enhance the hole amongst the impeller inlet and the casing (six)Cleanse the impeller and the casing, to guarantee that the impeller clearance perform (7) Tighten the anchor bolts and leveling the foundation. |
seven | Motor overload |
(1)Compared with the required pressure, the force distinction is huge that the back pressure or the inlet force is higher (two) In comparison with the tools requirements, blower movement is also large, so its force raises (three)Inlet filter is blocked, or outlet pipe is obstructed or blocked (four) Collusion or friction (trapped) rotating elements (five) The oil level is way too substantial (six) Slender V-belt is overheat, vibration is also huge, or pulley is as well little |
(1) Reduce the pressure to the specified price (two) Exhaust the extra gas into the environment or decrease the blower velocity (three) Remove the obstructions (4)Instantly shut down, examine the reason (five) Modify the oil to the appropriate amount (six) Examine the belt stress, and changed it with massive diameter pulley. |
Our Provider
1. Pre promote service 2. Following offer service
a. advise the ideal model c. on-line complex assistance,
b. manufacturing unit tour d. whole life spare elements and techinical help
Gurantee
12 months gurantee for our roots blowers
/ The use of authentic products manufacturer’s (OEM) component figures or trademarks , e.g. CASE® and John Deere® are for reference needs only and for indicating item use and compatibility. Our company and the detailed EPT components contained herein are not sponsored, accredited, or manufactured by the OEM. /