We – EPG Group the greatest couplings and gears factory in China with five various branches. For more details: Mobile/whatsapp/telegram/Kakao us at: 0086-13083988828 /
We make all kinds of roots blower, centrifugal blower, Our Principal items are as below:
Variety | Diameter | Price of circulation | Force |
ESR-MJ(Intensive Type) | Φ50~Φ300mm | .5~140m³/min | 9.8KPa~98.8Kpa |
ESR(Normal Variety) | Φ50~Φ350mm | .five~140m³/min | nine.8KPa~78.4Kpa |
ESR-H(High-pressure Sort) | Φ50~Φ350mm | .seven~160m³/min | 58.8KPa~ninety eight.8Kpa |
ESR-V(Vacuum Pump) | Φ50~Φ350mm | .five~160m³/min | 9.8KPa~fifty three.3Kpa |
EL Series | Φ200~Φ600mm | 20.3~750m³/min | nine.8KPa~58.8Kpa |
Multistage Centrifugal Blower or C-Collection |
Φ250~Φ500mm | 50~500m³/min | nine.8KPa~98Kpa |
ERR-ERG Type | Φ250~Φ500mm | 120~420m³/min | 9.8KPa~98.8Kpa |
The functioning principle of the a few-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 action 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 fuel in the chamber is pushed to accomplish the
goal of blowing.
Characteristic of our roots blower:
1. Huge adjustment of the air volume
2. Reduced Sounds
three. High performance
four. Low vitality cosumption
five. Prolonged time existence
6. Dependable running, simple routine maintenance,little footprint
The parameters of our roots blower:
Type | Ratary Velocity (r/min) |
Pressure Rise (Kpa) |
Capacity (m/min) |
Shaft Energy (Kw) |
Motor | Device Maximn Bodyweight(Kg) |
Electricity (Kw) |
||||||
ESR-fifty | 1100-2120 | 9.eight-fifty eight.8 | .sixty five-two.58 | .3-three.54 | .seventy five-four | 128-158 |
ESR-65 | 1100-2130 | 9.eight-58.eight | .94-3.sixty six | .38-four.46 | .75-5.5 | 155-185 |
ESR-80 | 1140-1900 | nine.eight-58.8 | two.34-five.43 | 1.04-seven.forty two | 2.2-11 | one hundred fifty five-277 |
ESR-a hundred | 1060-1980 | nine.eight-58.eight | four.fifty seven-9.05 | one.35-12.15 | three-15 | 309-377 |
ESR-one hundred twenty five | 980-1850 | 9.8-58.eight | 5.35-12.4 | one.sixty five-5.19 | 5.five-eighteen.five | 408-451 |
ESR-125C | 970-1830 | 9.8-fifty eight.eight | seven.five-17.fifty seven | 3.two-eighteen.5 | 4-22 | 408-451 |
ESR-150 | 810-1730 | nine.8-fifty eight.8 | ten.37-27.fifteen | three.84-40.eighty two | seven.five-45 | 688-848 |
ESR-175 | 970-1520 | 9.8-fifty eight.8 | 19.65-36.sixty five | seven.two-forty five.95 | 11-fifty five | 980-1080 |
ESR-200B | 740-1450 | nine.8-fifty eight.8 | 19.65-44.eight | 10.15-sixty.44 | fifteen-75 | 1272-1546 |
ESR-two hundred | 810-1480 | nine.8-58.eight | 27.65-fifty nine.2 | 8.05-eighty,twelve | fifteen-ninety | 1272-1546 |
ESR-250B | 1100-1480 | 9.8-fifty eight.eight | fifty four.seventy seven-seventy seven.fifty five | 19.ninety seven-ninety.ninety seven | 30-a hundred and ten | 1490-2454 |
ESR-250 | 990-1480 | nine.eight-fifty eight.8 | 61.4-ninety seven.fifty two | twenty.one-117.three | thirty-132 | 1490-2454 |
ESR-300 | 990-1480 | 9.8-fifty eight.eight | 87.one-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-ninety eight | .45-2.02 | 2.05-six.12 | three-seven.five | a hundred and sixty–a hundred and seventy |
ESR-65H | 1240-2130 | sixty three.7-98 | .78-two.53 | two.89-seven.55 | 4-11 | 198-230 |
ESR-80H | 1140-1900 | 63.7-98 | one.eighty two-four.55 | four.09-ten.1 | 5.5-15 | 316-326 |
ESR-100H | 1060-1980 | 63.seven-ninety eight | two.65-8.06 | 6.36-seventeen.two | seven.five-22 | 398-459 |
ESR-125H | 980-1850 | 63.7-ninety eight | four.sixty four-eleven.23 | eight.ninety two-24.2 | eleven-thirty | 544-630 |
ESR-150H | 810-1730 | sixty three.seven-98 | 9.fifty three-twenty five.seventy six | 17.16-sixty five | 18.five-seventy five | 752-1571 |
ESR-200H | 810-1480 | sixty three.seven-ninety eight | 25.34-56.ninety two | forty two.34-one hundred twenty | fifty five-132 | 1426-1934 |
ESR-250H | 990-1480 | 63.7-98 | 58-93.7 | eighty three.2-205 | ninety-220 | 2980-3468 |
ESR300H | 990-1480 | sixty three.seven-98 | 86.nine-134.1 | 114.seven-270 | 132-280 | 3476-3998 |
ERF-245 | 650-980 | nine.eight-ninety eight | forty seven.five-ninety seven.four | sixteen-183 | eighteen.five-two hundred | 3630-3690 |
ERF-250 | 650-980 | nine.eight-ninety eight | 61.six-120.four | 19-227 | 22-250 | 4450-4500 |
ERF-290 | 650-980 | 9.eight-seventy eight.four | ninety two.three-128 | 22-213 | thirty-250 | 4890-4710 |
ERF-295 | 650-980 | 9.eight-78.4 | ninety seven.three-152.5 | 23-227 | thirty-250 | 4890-4880 |
ERF-297 | 650-980 | 9.8-seventy eight.4 | 87.five-167.6 | 26-249 | 30-280 | 5330-5520 |
ERF-three hundred | 650-980 | 9.8-78.4 | a hundred and one.five-188.seven | 29-278 | 37-315 | 5330-5520 |
ERF-350 | 650-980 | 9.eight-seventy eight.four | 126-224.nine | 34-249 | 45-280 | 5210-6470 |
ERG-300 | 590-730 | 9.8-ninety eight | 128.3-196 | 38-362 | forty five-400 | 9440-15710 |
ERG-350 | 590-730 | 9.8-98 | 159.3-231.six | 43-420 | fifty five-450 | 9700-1571 |
ERG-four hundred | 590-730 | 9.8-eighty three.3 | 203.1-290.nine | fifty two-449 | 75-500 | 10090-11390 |
ERG-445 | 590-730 | 9.eight-seventy three.five | 229.seven-327.eight | fifty eight-477 | seventy five-560 | 10600-12230 |
ERG-450 | 590-730 | 9.8-seventy three.5 | 262.4-366.2 | sixty four-496 | 75-560 | 10600-12230 |
ERG-500 | 590-730 | nine.8-63.seven | 327.four-452.four | 78-529 | 90-560 | 12790-14620 |
ERF-240-V | 650-980 | -nine.eight- -forty nine | 38.1-seventy eight | thirteen-seventy six | eighteen.5-ninety | 3420-3285 |
ERF-245-V | 650-980 | -nine.8- -forty nine | 47.5-ninety seven.4 | 16-95 | 22-one hundred ten | 3425-3360 |
ERF-250-V | 650-980 | -nine.8- -49 | sixty three-120 | 19-117 | 22-132 | 3910-3830 |
ERF-290-V | 650-980 | -9.eight- -49 | 72.six-a hundred and forty four | 22-136 | 30-one hundred sixty | 4415-4270 |
ERF-295-V | 650-980 | -nine.eight- -forty nine | seventy six.six-152 | 23-a hundred forty five | 30-160 | 4425-4485 |
ERF-297-V | 650-980 | -9.8- -49 | 84.three-166.eight | 26-one hundred sixty | 30-a hundred and eighty | 5000-4980 |
ERF-three hundred-V | 650-980 | -nine.eight- -49 | ninety seven-192 | 29-178 | 37-200 | 5000-4980 |
ERF-350-V | 650-980 | -9.8- -forty nine | 116-225 | 34-209 | 45-250 | 5400-5700 |
ERG-300V | 590-730 | -nine.8- -forty nine | 133-193 | 38-184 | forty five-220 | 7800-9100 |
ERG-350V | 590-730 | -9.8- -forty nine | 163-231 | 43-216 | fifty five-250 | 9500-9470 |
ERG-400V | 590-730 | -9.eight- -forty nine | 199-290 | 52-269 | 75-315 | 9900-10130 |
ERG-445V | 590-730 | -9.eight- -forty nine | 224.8-326.9 | 58-303 | seventy five-355 | 9900-10130 |
ERG-450V | 590-730 | -9.eight- -forty nine | 255-365 | 64-335 | seventy five-400 | 11230-11300 |
ERG-500V | 590-730 | -nine.8- -forty nine | 314-452 | 78-412 | 132-450 | 13630-13850 |
ERF-245W | 650-980 | -thirteen.3- -fifty three.three | fifty three.5-a hundred and one | 21.five-102 | 30-one hundred ten | 3630-3360 |
ERF-250W | 650-980 | -thirteen.three- -53.three | 69-127 | 26.5-127 | thirty-one hundred sixty | 3985-4115 |
ERF-290W | 650-980 | -13.three- -fifty three.three | eighty two.6-one hundred fifty | 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- -fifty three.three | ninety five-174 | 36-174 | 45-200 | 5230-5130 |
ERF-300W | 650-980 | -13.3- -fifty three.3 | 109-195 | forty-193 | fifty five-220 | 5230-5130 |
ERF-350W | 650-980 | -13.three- -fifty three.three | 129-230 | 50-230 | seventy five-250 | 5840-5670 |
ERG-300W | 590-730 | -thirteen.3- -fifty three.three | 142-197 | 52-201 | 75-220 | 9100-9000 |
ERF-350W | 590-730 | -thirteen.3- -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 | -thirteen.3- -fifty three.3 | 244-294.6 | 82-331 | ninety-four hundred | 11230-11300 |
ERG450W | 590-730 | -13.3- -53.three | 275-368.5 | ninety one-366 | a hundred and ten-400 | 11230-11300 |
ETRF-250 (240,250) |
650-980 | ninety eight-196 | sixty four.eight-112 | one hundred thirty five-355 | 160-400 | 8700-8600 |
ETRF-295 (245,295) |
650-980 | ninety eight-196 | eighty.eight-139 | 167-439 | 185-five hundred | 9200-9100 |
ETRF-three hundred (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 | 98-176.four | 205-273 | 380-773 | 450-900 | 21350-24200 |
ETRG-450 (350,450) |
590-740 | ninety eight-176.4 | 263-428 | 476-955 | 560-1000 | 24200-27600 |
ETRF-250W (240,250) |
650-980 | -fifty three.three–80 | seventy two-121 | 75.6-121 | ninety-one hundred sixty | 6100-6470 |
ETRF-295W (245/295) |
650-980 | -fifty three.3–80 | 93.8-154 | ninety nine.5-186 | 110-220 | 7000-6400 |
ETRF-300W (2505/three hundred) |
650-980 | -fifty three.three–eighty | 116-189 | 115-220 | 132-250 | 7750-7760 |
EL81WD | 580-980 | nine.8-fifty eight.eight | fifty four.two-one hundred thirty | 18-151 | forty five-185 | 3595 |
EL82WDB | 580-980 | 9.8-58.eight | seventy two.eight-161 | 22-191 | 45-220 | 3860 |
EL83WDA | 580-980 | 9.8-fifty eight.nine | 101-213 | 28.five-202 | forty five-220 | 4300 |
EL84WDA | 580-980 | nine.eight-58.8 | 129-267 | 35.four-252 | 45-280 | 4720 |
EL93WDA | 580-730 | 9.eight-forty nine | 230-329 | 56.4-311 | seventy five-355 | 7765 |
EL94WDA | 580-730 | 9.eight-forty nine | 263-373 | 64-353 | 75-400 | 8130 |
EL95WDA | 490-580 | 9.eight-fifty eight.8 | 308-434 | 81.4-414 | ninety-450 | 11500 |
EL96WDA | 580 | 58.8 | 381 | 497 | 560 | 11500 |
E397WN | a thousand-1650 | 40 | 5-nine | |||
E408WN | 870-1650 | forty | ten-22 | |||
E517WN | 980-1580 | forty | twenty-thirty | |||
E520WN | 930-1550 | forty | 24-forty five | |||
E607WN | 750-1250 | 40 | 45-seventy six | |||
E610WN | 750-1250 | forty | seventy five-a hundred thirty |
Spare elements and framework of our roots blower:
Bundle of our Roots Blower
Pack into iron case, two layer,blower body and motor in decrease layer, inlet/out silencer and many others in upper layer
Roots blower pack technique identical as iron scenario, just modify to Fumigation Free of charge Plywood Case
Our manufacturing unit is a specialist manufacturer of Roots blowers which has more than 20 years’ experience in equipment
producing. It is located in Xihu (West Lake) Dis. East Industrial Park, fifty kilometers to the east of Shan EPT provincial
money— HangZhou. Our business also has practical site visitors transportation, as it is fifteen kilometers absent from
Diaozhen City station of HangZhou-HangZhou expressway, and 30 kilometers absent from East HangZhou station of
ZheJiang -ZheJiang expressway.The foremost product of our firm is ESR -variety Roots Blower. The roots
vacuum pump is a new variety of large-performance roots blower, which is designed independently primarily based on the
domestic and overseas superior technologies. Many patented technologies have been adopted on Roots
Blower, and therefore we have made important results in energy conservation and noise reduction, and many others.. So far, our
business has invested a lot more than thirty,000,000 RMB to introduce this kind of advanced expert tools as
horizontal machining centre, vertical machining center, two-way CNC surface area planer, CNC lathe, CNC milling
device, CNC planer, airplane grinder, cylindrical grinding device, and three coordinates screening equipment.
In addition to, we have taken various actions to standardize the procedure movement this sort of as doing work and cooperating
with a lot of scientific research units, schools and universities at home and abroad. We also constantly attempt to
absorb and increase the domestic innovative generation systems, so as to market the upgrading and
optimization of the solution and make the merchandise good quality achieve the advanced stage at property and overseas.
ESR -kind Roots Blower contains many collection these kinds of as A few-leaves Type, Two-leaves Variety and Centrifugal
Kind,which can be further divided to hundreds of types. The goods are commonly utilised in sewage therapy,
pneumatic conveying,vacuum packaging, aquaculture, meals processing, EPT electricity, petrochemical, cement,
mining and other industries. Our merchandise have this kind of rewards as low sound, vitality conserving, stable good quality,
and lengthy support existence, etc.. With the product sales outlets throughout the domestic cash metropolitan areas, our merchandise promote properly all
over the place, and have been exported to North The us,Russia, Malaysia, Indonesia, Vietnam, South Africa
and some other international locations. Possessing received the ISO9001 Global Good quality Program Certification, we have
set up and enhanced the high quality assurance of the merchandise planning, production, and installation.
From the method of design, study and growth to the concluded items, we have acquired the complete
approach controlled independently, hence providing the entire basis and dependability ensure for the products steadiness
and toughness. Obtaining a perfect product sales network and following-product sales support, we give our consumers with larger-
good quality and more productive support.All staff of our organization sincerely welcome the wide masses of close friends to
guidebook, and negotiate enterprise with us.
Our Roots Blower Workshop
Doosn Horzitonal Machine Center
The Software of the Roots Blower
Servicing and inspection
(one) Verify all fasteners and finding pins conditions whether or not they are loosening.
(two) Constantly verify no matter whether the leakage phenomenon of the physique.
(three) Pay interest to lubrication, sum of grease and noises when working,
establish no matter whether it works under the needed situations.
(4) 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 (artificial lithium grease penetration 220-250, drop stage ≥
190ºC). Replace the lubricant and grease after initial 200 several hours running, and substitute
once again right after a moth working. Later on, exchange the lubricant and grease in accordance to the
setting and lubricant (grease) high quality propose a suitable EPT for three
months.
(5) Always verify the inlet air filter, thoroughly clean or change the filter in time.
(six) Blower overload occasionally not right away displayed, so shell out focus to
the consumption and exhaust pressure, bearing temperature and the existing improve tendencies
of motor to determine no matter whether the blower functions typically
(7) Prior to disassembling the blower, the assembling relation and dimensions
have to be recorded or calculated, make marks on components to make certain the original
needs right after assembling.
(8) When freshly machine or overhaul, the oil tank must be cleaned ahead of use
and propose change all grease soon after eight several hours running.
Widespread failure explanation and troubleshooting
No | Failure | Attainable motives | Elimination strategies |
one | Friction among the impeller |
(one) Impurities on the impeller, resulting in the hole is also little (2) Gear use, ensuing in a large backlash (3) The gear is not effectively set, can not keep the impeller synchronization (four) Bearing put on ensuing in clearance escalating. |
(one) Get rid of filth and check out no matter whether there is hurt parts (2) Modify the equipment gap, substitute the gears if the gear backlash is increased than the regular 30% to fifty% (3)Re-assemble the gears, preserve the taper speak to region is to 75% (four)Replace the bearing |
two | Collision between impeller and wall, the impeller best and casing |
(1) Installation hole is not appropriate (2) working strain is as well higher, exceeding the specified benefit (3) Running temperature is too substantial (four) Casing or base deformation, positioning enthusiast failure (five) Bearing axial spot is not excellent |
(1) Alter the gap (two) Determine causes of overloading, reduced the force to the specified benefit (3) Check the installation accuracy and minimize the pipe tension (4) Check and repair bearings, and to make certain the clearance (5)Relocation |
three | Temperature as well higher |
(1) Oil in tank is also considerably, too thick or also dirty (two) Filter or silencer is blocked (3)The stress is greater than the specified value (4)Abnormal put on of the impeller, big gap (five)Bad ventilation, indoor temperature is substantial, ensuing in inlet air’s higher temperature (six) The rotating speed is way too low,outcome in the belt slipping. |
(one)Lessen the oil amount or depend on oil (two)Take away of blocking objects (3)Minimizing the strain through the blower (four)Restore its clearance (5)Open vents to decrease area temperature (six) Enhance pace to stop the belt slipping. |
4 | Inadequate movement |
(1) The inlet filter is blocked (2) Impeller use and the gap raises way too a lot (three) Belt slipping (4) Large imports stress loss (five) Pipeline air flow leakage |
(one) Clear the filter dust and obstruction (two) Restore the gap (3)Tighten the belt and enhance the number of belts (4)Alter the inlet stress to the specified price (five) Examine and mend the pipeline |
5 | Oil leaking or oil leaking into the enclosure |
(one)Large tank place lead to leakage from the discharge port (2) Seal wear, ensuing in shaft oil spills (3) The stress is increased than the specified worth |
(1)Reduce the oil amount (two)Change the seals (three)Very clear the air vents, 2mm diameter faucet is mounted in the center chamber, open up the faucet underneath the wall |
six | Irregular vibration and sounds |
(one)Bearing clearance exceeds the specified price or bearing wear (2) The equipment backlash is as well big, not in a restricted set (3) The international objects and dust caused by the impeller and the impeller, the impeller and the housing collision (4) the impeller shaft deformation induced the collision brought on by overload, (five) Friction among the impeller and the inlet housing brought on by overheating (six) Unbalance of the impeller brought on by fouling or international entire body (7) Anchor bolts or other fasteners are loosened |
(1)Substitute bearings or bearing seat (2)Reassemble gear and ensure backlash (three)Cleaning blower, check out the circumstance is broken (4)Verify the again strain, verify the wheel and adjust hole (5)Examine the filter and again pressure, enhance the gap in between the impeller inlet and the casing (six)Clean the impeller and the casing, to make certain that the impeller clearance function (seven) Tighten the anchor bolts and leveling the base. |
7 | Motor overload |
(one)In contrast with the essential strain, the force distinction is large that the back again stress or the inlet stress is high (2) In contrast with the products requirements, blower movement is as well large, so its stress will increase (three)Inlet filter is blocked, or outlet pipe is obstructed or blocked (four) Collusion or friction (caught) rotating components (five) The oil level is way too large (6) Slender V-belt is overheat, vibration is way too big, or pulley is as well little |
(1) Decrease the force to the specified value (two) Exhaust the extra fuel into the atmosphere or minimize the blower pace (three) Take away the obstructions (four)Quickly shut down, check out the reason (five) Change the oil to the proper level (six) Check the belt pressure, and replaced it with large diameter pulley. |
Our Provider
1. Pre offer service 2. Following promote service
a. recommend the suited model c. online technical assistance,
b. manufacturing unit tour d. total lifestyle spare parts and techinical assistance
Gurantee
12 months gurantee for our roots blowers
/ The use of first gear manufacturer’s (OEM) element figures or logos , e.g. CASE® and John Deere® are for reference needs only and for indicating merchandise use and compatibility. Our organization and the listed EPT parts contained herein are not sponsored, accepted, or created by the OEM. /