We – EPG Group the biggest couplings and gears manufacturing unit in China with 5 various branches. For more details: Cellular/whatsapp/telegram/Kakao us at: 0086-13083988828 /
We make all kinds of roots blower, centrifugal blower, Our Primary products are as beneath:
Kind | Diameter | Fee of circulation | Stress |
ESR-MJ(Intense Variety) | Φ50~Φ300mm | .five~140m³/min | 9.8KPa~98.8Kpa |
ESR(Normal Variety) | Φ50~Φ350mm | .five~140m³/min | 9.8KPa~78.4Kpa |
ESR-H(Large-stress Type) | Φ50~Φ350mm | .7~160m³/min | 58.8KPa~98.8Kpa |
ESR-V(Vacuum Pump) | Φ50~Φ350mm | .five~160m³/min | nine.8KPa~53.3Kpa |
EL Collection | Φ200~Φ600mm | twenty.3~750m³/min | nine.8KPa~fifty eight.8Kpa |
Multistage Centrifugal Blower or C-Collection |
Φ250~Φ500mm | fifty~500m³/min | nine.8KPa~98Kpa |
ERR-ERG Type | Φ250~Φ500mm | one hundred twenty~420m³/min | nine.8KPa~98.8Kpa |
The working basic principle of the three-blade roots blower: two 3-lobed rotors are organized in the cavity, and the
suction port and the discharge port are opened on each sides of the cavity. Via the action 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 achieve the
function of blowing.
Characteristic of our roots blower:
1. Large adjustment of the air volume
two. Low Sound
three. Substantial performance
four. Reduced strength cosumption
five. Extended time existence
six. Reputable operating, straightforward maintenance,tiny footprint
The parameters of our roots blower:
Sort | Ratary Speed (r/min) |
Stress Rise (Kpa) |
Ability (m/min) |
Shaft Electrical power (Kw) |
Motor | Device Maximn Fat(Kg) |
Energy (Kw) |
||||||
ESR-fifty | 1100-2120 | 9.8-58.8 | .sixty five-two.58 | .3-3.fifty four | .75-four | 128-158 |
ESR-65 | 1100-2130 | nine.8-58.eight | .ninety four-three.66 | .38-four.46 | .75-five.5 | one hundred fifty five-185 |
ESR-80 | 1140-1900 | nine.8-58.eight | two.34-five.43 | one.04-7.42 | 2.two-eleven | a hundred and fifty five-277 |
ESR-one hundred | 1060-1980 | 9.8-58.eight | four.57-9.05 | 1.35-twelve.15 | three-fifteen | 309-377 |
ESR-125 | 980-1850 | 9.eight-58.8 | 5.35-twelve.4 | 1.65-five.19 | 5.five-18.5 | 408-451 |
ESR-125C | 970-1830 | nine.eight-fifty eight.eight | seven.5-17.fifty seven | 3.2-eighteen.5 | four-22 | 408-451 |
ESR-a hundred and fifty | 810-1730 | nine.eight-fifty eight.eight | 10.37-27.fifteen | three.84-forty.eighty two | 7.5-forty five | 688-848 |
ESR-one hundred seventy five | 970-1520 | nine.eight-fifty eight.eight | 19.sixty five-36.sixty five | seven.2-45.95 | 11-55 | 980-1080 |
ESR-200B | 740-1450 | 9.8-fifty eight.eight | 19.65-forty four.eight | ten.fifteen-60.forty four | 15-75 | 1272-1546 |
ESR-200 | 810-1480 | 9.eight-58.8 | 27.sixty five-fifty nine.two | 8.05-eighty,12 | fifteen-ninety | 1272-1546 |
ESR-250B | 1100-1480 | nine.8-fifty eight.8 | 54.77-seventy seven.fifty five | 19.97-90.97 | 30-110 | 1490-2454 |
ESR-250 | 990-1480 | nine.8-fifty eight.eight | 61.four-97.fifty two | 20.one-117.three | 30-132 | 1490-2454 |
ESR-three hundred | 990-1480 | nine.eight-fifty eight.eight | 87.1-138.1 | 26.4-167.eight | 37-185 | 3326-3446 |
ESR-350 | 730-1480 | nine.8-fifty eight.eight | seventy eight.forty one-177.31 | 55-250 | ||
ESR-50H | 1230-2120 | sixty three.7-ninety eight | .forty five-2.02 | two.05-6.12 | 3-7.five | 160–one hundred seventy |
ESR-65H | 1240-2130 | sixty three.seven-ninety eight | .78-2.53 | 2.89-7.55 | 4-eleven | 198-230 |
ESR-80H | 1140-1900 | 63.7-98 | 1.eighty two-four.55 | 4.09-10.1 | five.5-fifteen | 316-326 |
ESR-100H | 1060-1980 | 63.7-ninety eight | 2.sixty five-8.06 | 6.36-seventeen.2 | seven.5-22 | 398-459 |
ESR-125H | 980-1850 | 63.seven-98 | four.64-11.23 | eight.ninety two-24.2 | eleven-thirty | 544-630 |
ESR-150H | 810-1730 | sixty three.seven-98 | nine.fifty three-twenty five.76 | seventeen.16-sixty five | 18.five-75 | 752-1571 |
ESR-200H | 810-1480 | 63.7-ninety eight | 25.34-56.ninety two | forty two.34-a hundred and twenty | 55-132 | 1426-1934 |
ESR-250H | 990-1480 | sixty three.seven-ninety eight | 58-ninety three.7 | 83.2-205 | ninety-220 | 2980-3468 |
ESR300H | 990-1480 | 63.7-98 | 86.9-134.1 | 114.7-270 | 132-280 | 3476-3998 |
ERF-245 | 650-980 | nine.8-ninety eight | 47.five-ninety seven.four | sixteen-183 | eighteen.5-200 | 3630-3690 |
ERF-250 | 650-980 | 9.8-ninety eight | sixty one.6-a hundred and twenty.4 | 19-227 | 22-250 | 4450-4500 |
ERF-290 | 650-980 | 9.eight-seventy eight.four | 92.3-128 | 22-213 | thirty-250 | 4890-4710 |
ERF-295 | 650-980 | 9.eight-78.four | 97.three-152.five | 23-227 | thirty-250 | 4890-4880 |
ERF-297 | 650-980 | 9.eight-78.4 | 87.five-167.6 | 26-249 | 30-280 | 5330-5520 |
ERF-300 | 650-980 | 9.8-seventy eight.four | a hundred and one.five-188.seven | 29-278 | 37-315 | 5330-5520 |
ERF-350 | 650-980 | 9.8-seventy eight.four | 126-224.9 | 34-249 | forty five-280 | 5210-6470 |
ERG-three hundred | 590-730 | nine.8-98 | 128.three-196 | 38-362 | forty five-400 | 9440-15710 |
ERG-350 | 590-730 | 9.eight-98 | 159.three-231.six | 43-420 | 55-450 | 9700-1571 |
ERG-four hundred | 590-730 | nine.8-eighty three.three | 203.1-290.9 | 52-449 | seventy five-five hundred | 10090-11390 |
ERG-445 | 590-730 | nine.eight-seventy three.five | 229.7-327.eight | fifty eight-477 | seventy five-560 | 10600-12230 |
ERG-450 | 590-730 | nine.8-73.5 | 262.4-366.two | 64-496 | seventy five-560 | 10600-12230 |
ERG-five hundred | 590-730 | 9.eight-sixty three.7 | 327.4-452.4 | 78-529 | ninety-560 | 12790-14620 |
ERF-240-V | 650-980 | -9.8- -forty nine | 38.one-seventy eight | thirteen-seventy six | eighteen.5-90 | 3420-3285 |
ERF-245-V | 650-980 | -9.8- -forty nine | forty seven.five-ninety seven.4 | 16-95 | 22-a hundred and ten | 3425-3360 |
ERF-250-V | 650-980 | -nine.eight- -49 | sixty three-120 | 19-117 | 22-132 | 3910-3830 |
ERF-290-V | 650-980 | -9.8- -forty nine | seventy two.6-one hundred forty four | 22-136 | thirty-a hundred and sixty | 4415-4270 |
ERF-295-V | 650-980 | -9.eight- -forty nine | 76.six-152 | 23-one hundred forty five | thirty-160 | 4425-4485 |
ERF-297-V | 650-980 | -9.eight- -forty nine | 84.three-166.eight | 26-one hundred sixty | thirty-180 | 5000-4980 |
ERF-300-V | 650-980 | -nine.eight- -forty nine | 97-192 | 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.eight- -forty nine | 133-193 | 38-184 | 45-220 | 7800-9100 |
ERG-350V | 590-730 | -nine.8- -49 | 163-231 | forty three-216 | fifty five-250 | 9500-9470 |
ERG-400V | 590-730 | -nine.eight- -49 | 199-290 | fifty two-269 | seventy five-315 | 9900-10130 |
ERG-445V | 590-730 | -9.8- -49 | 224.eight-326.nine | fifty eight-303 | 75-355 | 9900-10130 |
ERG-450V | 590-730 | -nine.8- -forty nine | 255-365 | 64-335 | 75-400 | 11230-11300 |
ERG-500V | 590-730 | -9.eight- -49 | 314-452 | 78-412 | 132-450 | 13630-13850 |
ERF-245W | 650-980 | -13.3- -fifty three.3 | 53.five-one zero one | 21.five-102 | thirty-110 | 3630-3360 |
ERF-250W | 650-980 | -thirteen.3- -53.3 | 69-127 | 26.5-127 | thirty-160 | 3985-4115 |
ERF-290W | 650-980 | -thirteen.three- -fifty three.three | 82.6-a hundred and fifty | 30.five-149 | 37-185 | 4340-4580 |
ERF-295W | 650-980 | -thirteen.three- -fifty three.3 | 87-158 | 32-158 | 37-185 | 4440-4580 |
ERF-297W | 650-980 | -thirteen.three- -fifty three.3 | 95-174 | 36-174 | forty five-two hundred | 5230-5130 |
ERF-300W | 650-980 | -thirteen.3- -53.three | 109-195 | forty-193 | fifty five-220 | 5230-5130 |
ERF-350W | 650-980 | -thirteen.three- -fifty three.three | 129-230 | 50-230 | seventy five-250 | 5840-5670 |
ERG-300W | 590-730 | -thirteen.three- -53.three | 142-197 | fifty two-201 | 75-220 | 9100-9000 |
ERF-350W | 590-730 | -13.3- -fifty three.3 | 168-234.four | fifty nine-235.five | seventy five-280 | 9500-9600 |
ERG-400W | 590-730 | -13.three- -fifty three.3 | 220-276.six | 71-292 | 90-315 | 9900-10130 |
ERG-445W | 590-730 | -13.3- -53.three | 244-294.six | 82-331 | 90-four hundred | 11230-11300 |
ERG450W | 590-730 | -13.3- -53.three | 275-368.five | 91-366 | 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-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 | ninety eight-176.four | 102-174 | 206-497 | 250-560 | 10320-10500 |
ETRF-350 (245,295) |
650-980 | ninety eight-137.2 | 124-207 | 241-473 | 280-560 | 10700-11110 |
ETRG-400 (three hundred,four hundred) |
590-740 | 98-176.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 | -53.3–80 | seventy two-121 | 75.6-121 | ninety-160 | 6100-6470 |
ETRF-295W (245/295) |
650-980 | -fifty three.3–80 | ninety three.8-154 | 99.5-186 | one hundred ten-220 | 7000-6400 |
ETRF-300W (2505/three hundred) |
650-980 | -53.three–eighty | 116-189 | 115-220 | 132-250 | 7750-7760 |
EL81WD | 580-980 | 9.eight-58.eight | fifty four.two-130 | 18-151 | forty five-185 | 3595 |
EL82WDB | 580-980 | 9.8-58.eight | seventy two.eight-161 | 22-191 | forty five-220 | 3860 |
EL83WDA | 580-980 | nine.8-fifty eight.9 | 101-213 | 28.5-202 | 45-220 | 4300 |
EL84WDA | 580-980 | nine.8-fifty eight.8 | 129-267 | 35.4-252 | 45-280 | 4720 |
EL93WDA | 580-730 | nine.8-forty nine | 230-329 | fifty six.4-311 | seventy five-355 | 7765 |
EL94WDA | 580-730 | 9.8-forty nine | 263-373 | sixty four-353 | 75-400 | 8130 |
EL95WDA | 490-580 | nine.eight-fifty eight.eight | 308-434 | 81.4-414 | 90-450 | 11500 |
EL96WDA | 580 | fifty eight.8 | 381 | 497 | 560 | 11500 |
E397WN | 1000-1650 | forty | 5-nine | |||
E408WN | 870-1650 | 40 | 10-22 | |||
E517WN | 980-1580 | 40 | twenty-30 | |||
E520WN | 930-1550 | 40 | 24-45 | |||
E607WN | 750-1250 | forty | forty five-76 | |||
E610WN | 750-1250 | forty | 75-130 |
Spare areas and structure of our roots blower:
Deal of our Roots Blower
Pack into iron circumstance, two layer,blower human body and motor in reduced layer, inlet/out silencer and so on in higher layer
Roots blower pack strategy identical as iron scenario, just modify to Fumigation Totally free Plywood Circumstance
Our factory is a expert maker of Roots blowers which has above twenty years’ experience in equipment
production. It is found in Xihu (West Lake) Dis. East Industrial Park, fifty kilometers to the east of Shan EPT provincial
capital— HangZhou. Our firm also has convenient traffic transportation, as it is fifteen kilometers away 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 -sort Roots Blower. The roots
vacuum pump is a new sort of higher-performance roots blower, which is created independently based mostly on the
domestic and international advanced technologies. A number of patented technologies have been adopted on Roots
Blower, and thus we have manufactured significant outcomes in energy conservation and noise reduction, and so on.. So much, our
organization has invested a lot more than thirty,000,000 RMB to introduce such innovative specialist equipment as
horizontal machining heart, vertical machining centre, two-way CNC area planer, CNC lathe, CNC milling
device, CNC planer, plane grinder, cylindrical grinding machine, and 3 coordinates testing equipment.
Apart from, we have taken a variety of actions to standardize the process stream these kinds of as operating and cooperating
with numerous scientific research units, colleges and universities at home and abroad. We also continually consider to
absorb and enhance the domestic innovative generation systems, so as to advertise the upgrading and
optimization of the product and make the item high quality achieve the advanced degree at home and overseas.
ESR -type Roots Blower contains a number of collection such as 3-leaves Sort, Two-leaves Variety and Centrifugal
Sort,which can be further divided to hundreds of types. The products are commonly utilized in sewage remedy,
pneumatic conveying,vacuum packaging, aquaculture, foodstuff processing, EPT electrical power, petrochemical, cement,
mining and other industries. Our merchandise have such advantages as low noise, energy saving, stable quality,
and lengthy provider lifestyle, etc.. With the product sales outlets throughout the domestic capital cities, our goods sell properly all
above the country, and have been exported to North The usa,Russia, Malaysia, Indonesia, Vietnam, South Africa
and some other nations around the world. Having received the ISO9001 Global Top quality Program Certification, we have
recognized and enhanced the good quality assurance of the products creating, producing, and installation.
From the approach of design, analysis and improvement to the completed goods, we have obtained the whole
procedure managed independently, thus offering the entire basis and dependability promise for the goods security
and toughness. Getting a perfect income network and right after-revenue services, we give our consumers with higher-
quality and more effective services.All staff of our organization sincerely welcome the broad masses of buddies to
guide, and negotiate business with us.
Our Roots Blower Workshop
Doosn Horzitonal Device Heart
The Application of the Roots Blower
Upkeep and inspection
(1) Examine all fasteners and locating pins conditions regardless of whether they are loosening.
(two) Usually examine no matter whether the leakage phenomenon of the body.
(3) Pay out consideration to lubrication, volume of grease and noises when running,
decide whether it performs underneath the needed situations.
(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 (synthetic lithium grease penetration 220-250, drop position ≥
190ºC). Replace the lubricant and grease soon after initial 200 several hours running, and change
yet again soon after a moth running. Later, change the lubricant and grease according to the
setting and lubricant (grease) top quality suggest a suitable EPT for a few
months.
(five) Always verify the inlet air filter, clear or substitute the filter in time.
(six) Blower overload sometimes not instantly exhibited, so shell out focus to
the intake and exhaust strain, bearing temperature and the present enhance traits
of motor to determine whether the blower performs normally
(7) Just before disassembling the blower, the assembling relation and dimensions
should be recorded or measured, make marks on elements to make certain the unique
demands soon after assembling.
(8) When newly machine or overhaul, the oil tank ought to be cleaned prior to use
and propose replace all grease following 8 hours managing.
Typical failure purpose and troubleshooting
No | Failure | Possible reasons | Elimination methods |
one | Friction among the impeller |
(1) Impurities on the impeller, resulting in the gap is too little (2) Gear use, resulting in a big backlash (3) The equipment is not well mounted, can not maintain the impeller synchronization (4) Bearing dress in resulting in clearance increasing. |
(one) Get rid of dirt and check whether or not there is hurt components (two) Modify the equipment gap, replace the gears if the gear backlash is greater than the typical 30% to 50% (3)Re-assemble the gears, hold the taper make contact with spot is to 75% (4)Exchange the bearing |
2 | Collision between impeller and wall, the impeller best and casing |
(1) Installation gap is not appropriate (2) operating force is also substantial, exceeding the specified worth (three) Running temperature is as well high (four) Casing or foundation deformation, positioning enthusiast failure (five) Bearing axial area is not excellent |
(one) Change the hole (two) Discover brings about of overloading, lowered the force to the specified benefit (3) Examine the installation precision and reduce the pipe stress (four) Verify and repair bearings, and to guarantee the clearance (5)Relocation |
3 | Temperature as well high |
(1) Oil in tank is too significantly, also thick or too soiled (2) Filter or silencer is blocked (3)The pressure is increased than the specified price (four)Excessive wear of the impeller, huge gap (5)Inadequate air flow, indoor temperature is large, resulting in inlet air’s high temperature (6) The rotating pace is also minimal,end result in the belt slipping. |
(1)Reduce the oil level or depend on oil (2)Remove of blocking objects (three)Minimizing the pressure by way of the blower (4)Fix its clearance (five)Open up vents to decrease room temperature (6) Boost speed to prevent the belt slipping. |
4 | Insufficient movement |
(1) The inlet filter is blocked (2) Impeller put on and the hole will increase as well significantly (3) Belt slipping (4) Big imports stress reduction (5) Pipeline ventilation leakage |
(1) Cleanse the filter dust and obstruction (two) Repair the gap (three)Tighten the belt and increase the quantity of belts (four)Modify the inlet strain to the specified price (5) Verify and fix the pipeline |
5 | Oil leaking or oil leaking into the enclosure |
(1)High tank placement trigger leakage from the discharge port (two) Seal put on, resulting in shaft oil spills (3) The strain is higher than the specified worth |
(1)Decrease the oil stage (2)Replace the seals (three)Obvious the air vents, 2mm diameter faucet is set 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 use (two) The equipment backlash is also large, not in a limited fastened (3) The overseas objects and dust triggered by the impeller and the impeller, the impeller and the housing collision (four) the impeller shaft deformation induced the collision triggered by overload, (5) Friction between the impeller and the inlet housing induced by overheating (6) Unbalance of the impeller triggered by fouling or foreign entire body (7) Anchor bolts or other fasteners are loosened |
(1)Change bearings or bearing seat (two)Reassemble equipment and make sure backlash (3)Cleansing blower, check out the case is damaged (4)Check the back force, check the wheel and adjust hole (5)Examine the filter and back strain, enhance the hole among the impeller inlet and the casing (6)Thoroughly clean the impeller and the casing, to make sure that the impeller clearance function (7) Tighten the anchor bolts and leveling the foundation. |
seven | Motor overload |
(1)In contrast with the essential force, the stress variation is huge that the again stress or the inlet pressure is high (two) In contrast with the products demands, blower movement is also massive, so its force boosts (3)Inlet filter is blocked, or outlet pipe is obstructed or blocked (four) Collusion or friction (stuck) rotating elements (5) The oil level is way too large (six) Slender V-belt is overheat, vibration is as well huge, or pulley is as well small |
(1) Minimize the strain to the specified price (two) Exhaust the surplus gas into the environment or minimize the blower pace (three) Get rid of the obstructions (4)Instantly shut down, check the cause (five) Change the oil to the correct degree (six) Verify the belt pressure, and replaced it with huge diameter pulley. |
Our Services
1. Pre sell service 2. After promote service
a. advocate the suited model c. online complex assistance,
b. manufacturing unit tour d. whole life spare areas and techinical help
Gurantee
twelve months gurantee for our roots blowers
/ The use of original tools manufacturer’s (OEM) part figures or logos , e.g. CASE® and John Deere® are for reference reasons only and for indicating merchandise use and compatibility. Our organization and the listed EPT elements contained herein are not sponsored, authorized, or manufactured by the OEM. /