We – EPG Team the biggest couplings and gears factory in China with five different branches. For a lot more details: Mobile/whatsapp/telegram/Kakao us at: 0086-13083988828 /
We make all types of roots blower, centrifugal blower, Our Principal merchandise are as below:
Kind | Diameter | Price of stream | Strain |
ESR-MJ(Intensive Type) | Φ50~Φ300mm | .5~140m³/min | 9.8KPa~ninety eight.8Kpa |
ESR(Normal Type) | Φ50~Φ350mm | .5~140m³/min | nine.8KPa~seventy eight.4Kpa |
ESR-H(High-strain Sort) | Φ50~Φ350mm | .7~160m³/min | 58.8KPa~98.8Kpa |
ESR-V(Vacuum Pump) | Φ50~Φ350mm | .five~160m³/min | 9.8KPa~53.3Kpa |
EL Series | Φ200~Φ600mm | 20.three~750m³/min | 9.8KPa~58.8Kpa |
Multistage Centrifugal Blower or C-Collection |
Φ250~Φ500mm | 50~500m³/min | nine.8KPa~98Kpa |
ERR-ERG Kind | Φ250~Φ500mm | one hundred twenty~420m³/min | 9.8KPa~98.8Kpa |
The operating 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. By way of 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 gas in the chamber is pushed to obtain the
purpose of blowing.
Characteristic of our roots blower:
one. Massive adjustment of the air quantity
2. Reduced Sound
three. Large performance
4. Reduced strength cosumption
five. Lengthy time life
6. Reliable working, effortless upkeep,modest footprint
The parameters of our roots blower:
Sort | Ratary Pace (r/min) |
Force Increase (Kpa) |
Capacity (m/min) |
Shaft Power (Kw) |
Motor | Device Maximn Bodyweight(Kg) |
Energy (Kw) |
||||||
ESR-fifty | 1100-2120 | nine.8-58.eight | .65-2.fifty eight | .3-three.54 | .seventy five-four | 128-158 |
ESR-sixty five | 1100-2130 | 9.8-fifty eight.8 | .ninety four-3.66 | .38-four.forty six | .75-five.five | 155-185 |
ESR-80 | 1140-1900 | 9.8-58.eight | two.34-5.forty three | 1.04-7.forty two | 2.2-eleven | 155-277 |
ESR-100 | 1060-1980 | nine.8-58.eight | four.57-9.05 | 1.35-12.fifteen | three-fifteen | 309-377 |
ESR-one hundred twenty five | 980-1850 | nine.eight-58.8 | five.35-twelve.4 | 1.65-five.19 | 5.5-18.5 | 408-451 |
ESR-125C | 970-1830 | 9.8-fifty eight.8 | 7.5-17.fifty seven | three.two-18.5 | 4-22 | 408-451 |
ESR-one hundred fifty | 810-1730 | 9.8-fifty eight.eight | ten.37-27.15 | 3.eighty four-40.eighty two | seven.5-forty five | 688-848 |
ESR-175 | 970-1520 | nine.eight-fifty eight.eight | 19.sixty five-36.sixty five | 7.2-45.ninety five | 11-fifty five | 980-1080 |
ESR-200B | 740-1450 | nine.8-58.8 | 19.sixty five-forty four.8 | 10.fifteen-sixty.44 | 15-75 | 1272-1546 |
ESR-two hundred | 810-1480 | 9.8-fifty eight.8 | 27.sixty five-59.2 | 8.05-80,twelve | 15-90 | 1272-1546 |
ESR-250B | 1100-1480 | 9.eight-58.8 | fifty four.77-seventy seven.55 | 19.ninety seven-ninety.97 | 30-110 | 1490-2454 |
ESR-250 | 990-1480 | nine.eight-fifty eight.8 | sixty one.4-ninety seven.fifty two | 20.1-117.3 | 30-132 | 1490-2454 |
ESR-300 | 990-1480 | nine.8-58.eight | 87.1-138.1 | 26.four-167.8 | 37-185 | 3326-3446 |
ESR-350 | 730-1480 | 9.eight-fifty eight.eight | seventy eight.41-177.31 | 55-250 | ||
ESR-50H | 1230-2120 | 63.7-98 | .45-2.02 | two.05-6.12 | 3-seven.five | a hundred and sixty–one hundred seventy |
ESR-65H | 1240-2130 | sixty three.seven-98 | .78-two.53 | 2.89-seven.fifty five | four-11 | 198-230 |
ESR-80H | 1140-1900 | sixty three.7-98 | one.eighty two-four.55 | 4.09-10.one | five.5-fifteen | 316-326 |
ESR-100H | 1060-1980 | 63.seven-98 | 2.sixty five-eight.06 | six.36-seventeen.2 | 7.5-22 | 398-459 |
ESR-125H | 980-1850 | sixty three.seven-ninety eight | four.sixty four-eleven.23 | 8.92-24.two | 11-30 | 544-630 |
ESR-150H | 810-1730 | 63.7-ninety eight | 9.53-twenty five.76 | 17.sixteen-65 | 18.5-seventy five | 752-1571 |
ESR-200H | 810-1480 | 63.7-ninety eight | 25.34-fifty six.92 | 42.34-120 | 55-132 | 1426-1934 |
ESR-250H | 990-1480 | sixty three.seven-98 | fifty eight-ninety three.7 | 83.two-205 | ninety-220 | 2980-3468 |
ESR300H | 990-1480 | 63.7-ninety eight | 86.9-134.one | 114.seven-270 | 132-280 | 3476-3998 |
ERF-245 | 650-980 | 9.eight-98 | forty seven.5-ninety seven.4 | sixteen-183 | eighteen.five-200 | 3630-3690 |
ERF-250 | 650-980 | 9.8-ninety eight | sixty one.six-one hundred twenty.four | 19-227 | 22-250 | 4450-4500 |
ERF-290 | 650-980 | nine.8-seventy eight.4 | 92.three-128 | 22-213 | thirty-250 | 4890-4710 |
ERF-295 | 650-980 | nine.eight-seventy eight.4 | 97.three-152.5 | 23-227 | thirty-250 | 4890-4880 |
ERF-297 | 650-980 | nine.8-78.4 | 87.5-167.6 | 26-249 | 30-280 | 5330-5520 |
ERF-three hundred | 650-980 | nine.8-seventy eight.four | 101.5-188.7 | 29-278 | 37-315 | 5330-5520 |
ERF-350 | 650-980 | nine.eight-seventy eight.four | 126-224.9 | 34-249 | forty five-280 | 5210-6470 |
ERG-300 | 590-730 | nine.eight-ninety eight | 128.3-196 | 38-362 | 45-four hundred | 9440-15710 |
ERG-350 | 590-730 | 9.eight-ninety eight | 159.3-231.six | 43-420 | 55-450 | 9700-1571 |
ERG-400 | 590-730 | nine.8-83.3 | 203.1-290.nine | 52-449 | 75-500 | 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 | 9.8-seventy three.five | 262.four-366.two | 64-496 | 75-560 | 10600-12230 |
ERG-500 | 590-730 | 9.eight-sixty three.seven | 327.four-452.4 | 78-529 | ninety-560 | 12790-14620 |
ERF-240-V | 650-980 | -9.8- -49 | 38.one-seventy eight | thirteen-seventy six | eighteen.five-90 | 3420-3285 |
ERF-245-V | 650-980 | -nine.8- -49 | 47.five-ninety seven.4 | 16-95 | 22-one hundred 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 | 72.6-a hundred and forty four | 22-136 | 30-160 | 4415-4270 |
ERF-295-V | 650-980 | -nine.8- -forty nine | 76.six-152 | 23-a hundred forty five | thirty-160 | 4425-4485 |
ERF-297-V | 650-980 | -nine.8- -49 | eighty four.3-166.eight | 26-one hundred sixty | 30-180 | 5000-4980 |
ERF-three hundred-V | 650-980 | -9.8- -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 | -9.8- -49 | 163-231 | forty three-216 | fifty five-250 | 9500-9470 |
ERG-400V | 590-730 | -9.8- -forty nine | 199-290 | fifty two-269 | 75-315 | 9900-10130 |
ERG-445V | 590-730 | -9.eight- -forty nine | 224.8-326.nine | 58-303 | seventy five-355 | 9900-10130 |
ERG-450V | 590-730 | -9.8- -49 | 255-365 | sixty four-335 | 75-400 | 11230-11300 |
ERG-500V | 590-730 | -nine.8- -49 | 314-452 | 78-412 | 132-450 | 13630-13850 |
ERF-245W | 650-980 | -thirteen.three- -53.three | 53.5-a hundred and one | 21.five-102 | thirty-one hundred ten | 3630-3360 |
ERF-250W | 650-980 | -13.3- -53.three | 69-127 | 26.five-127 | thirty-one hundred sixty | 3985-4115 |
ERF-290W | 650-980 | -13.three- -fifty three.three | 82.six-150 | 30.5-149 | 37-185 | 4340-4580 |
ERF-295W | 650-980 | -13.three- -fifty three.3 | 87-158 | 32-158 | 37-185 | 4440-4580 |
ERF-297W | 650-980 | -13.3- -53.three | 95-174 | 36-174 | 45-two hundred | 5230-5130 |
ERF-300W | 650-980 | -thirteen.three- -53.3 | 109-195 | 40-193 | 55-220 | 5230-5130 |
ERF-350W | 650-980 | -13.3- -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- -53.3 | 168-234.four | fifty nine-235.5 | 75-280 | 9500-9600 |
ERG-400W | 590-730 | -thirteen.3- -53.3 | 220-276.6 | seventy one-292 | 90-315 | 9900-10130 |
ERG-445W | 590-730 | -thirteen.three- -fifty three.three | 244-294.six | eighty two-331 | 90-400 | 11230-11300 |
ERG450W | 590-730 | -thirteen.three- -fifty three.3 | 275-368.5 | ninety one-366 | one hundred 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 | 98-196 | 80.8-139 | 167-439 | 185-500 | 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 | ninety eight-137.two | 124-207 | 241-473 | 280-560 | 10700-11110 |
ETRG-400 (300,four hundred) |
590-740 | 98-176.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 | -53.3–eighty | 72-121 | 75.6-121 | 90-a hundred and sixty | 6100-6470 |
ETRF-295W (245/295) |
650-980 | -fifty three.three–eighty | 93.eight-154 | 99.five-186 | 110-220 | 7000-6400 |
ETRF-300W (2505/three hundred) |
650-980 | -fifty three.three–eighty | 116-189 | one hundred fifteen-220 | 132-250 | 7750-7760 |
EL81WD | 580-980 | 9.8-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 | forty five-220 | 3860 |
EL83WDA | 580-980 | nine.eight-58.9 | one hundred and one-213 | 28.5-202 | 45-220 | 4300 |
EL84WDA | 580-980 | 9.8-58.8 | 129-267 | 35.four-252 | forty five-280 | 4720 |
EL93WDA | 580-730 | 9.eight-forty nine | 230-329 | 56.4-311 | 75-355 | 7765 |
EL94WDA | 580-730 | nine.8-forty nine | 263-373 | 64-353 | seventy five-four hundred | 8130 |
EL95WDA | 490-580 | nine.8-58.eight | 308-434 | 81.4-414 | 90-450 | 11500 |
EL96WDA | 580 | fifty eight.8 | 381 | 497 | 560 | 11500 |
E397WN | 1000-1650 | 40 | 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 | 40 | seventy five-130 |
Spare areas and structure of our roots blower:
Deal of our Roots Blower
Pack into iron circumstance, two layer,blower physique and motor in reduce layer, inlet/out silencer etc in upper layer
Roots blower pack strategy exact same as iron circumstance, just modify to Fumigation Free Plywood Situation
Our manufacturing facility is a expert producer of Roots blowers which has above twenty years’ experience in machinery
producing. It is found in Xihu (West Lake) Dis. East Industrial Park, 50 kilometers to the east of Shan EPT provincial
funds— HangZhou. Our firm also has practical targeted traffic transportation, as it is fifteen kilometers away from
Diaozhen City station of HangZhou-HangZhou expressway, and 30 kilometers away from East HangZhou station of
ZheJiang -ZheJiang expressway.The leading merchandise of our business is ESR -variety Roots Blower. The roots
vacuum pump is a new variety of higher-efficiency roots blower, which is developed independently dependent on the
domestic and international innovative technologies. Many patented technologies have been adopted on Roots
Blower, and thus we have manufactured important effects in strength conservation and noise reduction, and many others.. So far, our
business has invested much more than 30,000,000 RMB to introduce such superior professional products as
horizontal machining centre, vertical machining centre, two-way CNC surface planer, CNC lathe, CNC milling
machine, CNC planer, aircraft grinder, cylindrical grinding machine, and 3 coordinates tests machine.
Besides, we have taken a variety of measures to standardize the procedure movement these kinds of as operating and cooperating
with many scientific research units, colleges and universities at residence and overseas. We also continuously try to
take in and enhance the domestic sophisticated creation systems, so as to promote the upgrading and
optimization of the product and make the merchandise high quality reach the sophisticated amount at house and overseas.
ESR -sort Roots Blower consists of several collection this kind of as 3-leaves Kind, Two-leaves Variety and Centrifugal
Variety,which can be more divided to hundreds of varieties. The products are widely utilised in sewage treatment,
pneumatic conveying,vacuum packaging, aquaculture, food processing, EPT energy, petrochemical, cement,
mining and other industries. Our goods have this sort of positive aspects as low noise, power saving, steady good quality,
and prolonged support existence, and so forth.. With the income outlets throughout the domestic capital metropolitan areas, our goods market nicely all
over the region, and have been exported to North The us,Russia, Malaysia, Indonesia, Vietnam, South Africa
and some other nations. Getting obtained the ISO9001 International High quality Method Certification, we have
established and improved the good quality assurance of the goods planning, manufacturing, and installation.
From the process of design, investigation and growth to the finished merchandise, we have received the entire
process managed independently, thus offering the entire basis and trustworthiness promise for the goods security
and durability. Possessing a perfect revenue community and following-revenue service, we provide our clients with higher-
top quality and a lot more successful services.All workers of our firm sincerely welcome the wide masses of friends to
guide, and negotiate business with us.
Our Roots Blower Workshop
Doosn Horzitonal Equipment Heart
The Application of the Roots Blower
Routine maintenance and inspection
(one) Check out all fasteners and finding pins circumstances regardless of whether they are loosening.
(two) Constantly verify no matter whether the leakage phenomenon of the human body.
(three) Spend interest to lubrication, sum of grease and noises when running,
decide whether or not it functions under the necessary conditions.
(4) Lubricant & grease: The lubricant is for medium load industrial equipment oil
(grade 220, kinematic viscosity of 198 ~ 242mm2 / s 40ºC, flash level ≥ 200ºC)
The grease is butter (artificial lithium grease penetration 220-250, drop position ≥
190ºC). Exchange the lubricant and grease after very first two hundred several hours working, and exchange
again soon after a moth managing. Later on, replace the lubricant and grease in accordance to the
surroundings and lubricant (grease) high quality propose a appropriate EPT for a few
months.
(five) Constantly check the inlet air filter, cleanse or change the filter in time.
(six) Blower overload sometimes not quickly exhibited, so spend attention to
the consumption and exhaust strain, bearing temperature and the recent increase trends
of motor to figure out whether or not the blower performs typically
(seven) Before disassembling the blower, the assembling relation and proportions
need to be recorded or calculated, make marks on parts to make certain the authentic
requirements after assembling.
(8) When recently device or overhaul, the oil tank ought to be cleaned just before use
and suggest substitute all grease right after 8 hrs working.
Frequent failure cause and troubleshooting
No | Failure | Feasible motives | Elimination approaches |
1 | Friction among the impeller |
(1) Impurities on the impeller, ensuing in the hole is way too tiny (2) Equipment wear, resulting in a huge backlash (three) The gear is not properly set, can not maintain the impeller synchronization (4) Bearing put on resulting in clearance rising. |
(one) Remove filth and check out whether there is harm areas (two) Modify the gear gap, exchange the gears if the gear backlash is higher than the regular 30% to 50% (3)Re-assemble the gears, keep the taper make contact with region is to seventy five% (four)Substitute the bearing |
2 | Collision in between impeller and wall, the impeller best and casing |
(1) Set up gap is not appropriate (2) functioning pressure is as well high, exceeding the specified value (3) Operating temperature is as well higher (4) Casing or base deformation, positioning supporter failure (five) Bearing axial spot is not very good |
(1) Adjust the hole (two) Recognize triggers of overloading, lowered the force to the specified worth (3) Check out the installation precision and decrease the pipe stress (four) Check and repair bearings, and to make sure the clearance (five)Relocation |
3 | Temperature also large |
(1) Oil in tank is too much, also thick or also soiled (two) Filter or silencer is blocked (3)The pressure is increased than the specified price (four)Excessive use of the impeller, massive gap (five)Inadequate ventilation, indoor temperature is large, ensuing in inlet air’s higher temperature (6) The rotating velocity is also lower,end result in the belt slipping. |
(1)Minimize the oil stage or depend on oil (2)Remove of blocking objects (three)Minimizing the strain through the blower (four)Mend its clearance (five)Open vents to reduce area temperature (6) Enhance pace to avert the belt slipping. |
four | Insufficient circulation |
(one) The inlet filter is blocked (two) Impeller dress in and the gap boosts way too a lot (3) Belt slipping (four) Huge imports stress loss (five) Pipeline ventilation leakage |
(1) Clean the filter dust and obstruction (two) Restore the gap (three)Tighten the belt and boost the number of belts (4)Alter the inlet pressure to the specified value (five) Check and mend the pipeline |
5 | Oil leaking or oil leaking into the enclosure |
(1)Higher tank place cause leakage from the discharge port (two) Seal put on, ensuing in shaft oil spills (3) The strain is larger than the specified benefit |
(one)Decrease the oil degree (two)Replace the seals (three)Distinct the air vents, 2mm diameter faucet is fastened in the middle chamber, open up the faucet under the wall |
six | Abnormal vibration and noise |
(one)Bearing clearance exceeds the specified price or bearing wear (two) The gear backlash is also massive, not in a tight set (three) The overseas objects and dust caused by the impeller and the impeller, the impeller and the housing collision (four) the impeller shaft deformation brought on the collision triggered by overload, (5) Friction among the impeller and the inlet housing brought on by overheating (6) Unbalance of the impeller brought on by fouling or international body (7) Anchor bolts or other fasteners are loosened |
(one)Change bearings or bearing seat (2)Reassemble equipment and make sure backlash (3)Cleansing blower, examine the circumstance is destroyed (four)Verify the again pressure, check the wheel and change hole (5)Examine the filter and again pressure, increase the hole between the impeller inlet and the casing (six)Thoroughly clean the impeller and the casing, to make certain that the impeller clearance operate (seven) Tighten the anchor bolts and leveling the foundation. |
7 | Motor overload |
(one)Compared with the essential strain, the strain difference is huge that the back force or the inlet strain is large (2) In comparison with the products demands, blower movement is as well massive, so its force will increase (3)Inlet filter is blocked, or outlet pipe is obstructed or blocked (four) Collusion or friction (stuck) rotating parts (5) The oil level is as well large (six) Narrow V-belt is overheat, vibration is too huge, or pulley is too small |
(one) Reduce the pressure to the specified price (2) Exhaust the excess fuel into the atmosphere or reduce the blower pace (three) Get rid of the obstructions (four)Immediately shut down, examine the purpose (5) Alter the oil to the correct amount (six) Check out the belt stress, and replaced it with huge diameter pulley. |
Our Service
1. Pre sell service two. After market service
a. advise the ideal model c. on the internet complex help,
b. factory tour d. complete existence spare components and techinical support
Gurantee
twelve months gurantee for our roots blowers
/ The use of authentic tools manufacturer’s (OEM) portion quantities or emblems , e.g. CASE® and John Deere® are for reference reasons only and for indicating product use and compatibility. Our organization and the outlined EPT parts contained herein are not sponsored, accepted, or produced by the OEM. /