We – EPG Team the biggest couplings and gears manufacturing unit in China with 5 distinct branches. For a lot more particulars: Cell/whatsapp/telegram/Kakao us at: 0086-13083988828 /
We make all sorts of roots blower, centrifugal blower, Our Main items are as underneath:
| Sort | Diameter | Charge of movement | Stress |
| ESR-MJ(Intensive Sort) | Φ50~Φ300mm | .five~140m³/min | 9.8KPa~ninety eight.8Kpa |
| ESR(Common Variety) | Φ50~Φ350mm | .5~140m³/min | 9.8KPa~seventy eight.4Kpa |
| ESR-H(Higher-stress Kind) | Φ50~Φ350mm | .7~160m³/min | fifty eight.8KPa~98.8Kpa |
| ESR-V(Vacuum Pump) | Φ50~Φ350mm | .5~160m³/min | nine.8KPa~fifty three.3Kpa |
| EL Collection | Φ200~Φ600mm | twenty.3~750m³/min | nine.8KPa~fifty eight.8Kpa |
| Multistage Centrifugal Blower or C-Sequence |
Φ250~Φ500mm | fifty~500m³/min | nine.8KPa~98Kpa |
| ERR-ERG Sort | Φ250~Φ500mm | one hundred twenty~420m³/min | 9.8KPa~98.8Kpa |
The functioning principle of the three-blade roots blower: two three-lobed rotors are organized in the cavity, and the
suction port and the discharge port are opened on each sides of the cavity. Through 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 attain the
goal of blowing.
Feature of our roots blower:
one. Massive adjustment of the air quantity
2. Low Sounds
three. Higher performance
four. Lower power cosumption
5. Lengthy time daily life
6. Trustworthy working, simple upkeep,tiny footprint
The parameters of our roots blower:
| Type | Ratary Velocity (r/min) |
Pressure Increase (Kpa) |
Capability (m/min) |
Shaft Power (Kw) |
Motor | Device Maximn Bodyweight(Kg) |
| Electricity (Kw) |
||||||
| ESR-50 | 1100-2120 | nine.8-fifty eight.eight | .65-2.58 | .three-three.54 | .75-four | 128-158 |
| ESR-sixty five | 1100-2130 | 9.eight-fifty eight.8 | .ninety four-three.66 | .38-four.46 | .seventy five-five.5 | one hundred fifty five-185 |
| ESR-80 | 1140-1900 | 9.8-fifty eight.eight | 2.34-five.43 | one.04-7.forty two | two.two-eleven | 155-277 |
| ESR-a hundred | 1060-1980 | 9.eight-fifty eight.8 | 4.57-nine.05 | 1.35-twelve.fifteen | 3-fifteen | 309-377 |
| ESR-a hundred twenty five | 980-1850 | nine.8-58.eight | 5.35-12.four | 1.sixty five-5.19 | five.five-eighteen.5 | 408-451 |
| ESR-125C | 970-1830 | nine.8-58.eight | seven.5-17.57 | three.two-eighteen.five | four-22 | 408-451 |
| ESR-a hundred and fifty | 810-1730 | nine.8-58.eight | ten.37-27.fifteen | 3.eighty four-forty.eighty two | seven.5-45 | 688-848 |
| ESR-175 | 970-1520 | 9.8-fifty eight.eight | 19.sixty five-36.65 | seven.two-forty five.95 | 11-fifty five | 980-1080 |
| ESR-200B | 740-1450 | nine.eight-fifty eight.8 | 19.65-44.8 | 10.15-60.forty four | fifteen-seventy five | 1272-1546 |
| ESR-200 | 810-1480 | 9.eight-58.8 | 27.sixty five-fifty nine.two | eight.05-80,twelve | 15-ninety | 1272-1546 |
| ESR-250B | 1100-1480 | 9.eight-fifty eight.8 | 54.77-77.fifty five | 19.ninety seven-90.97 | thirty-one hundred ten | 1490-2454 |
| ESR-250 | 990-1480 | 9.eight-58.8 | 61.four-ninety seven.fifty two | 20.1-117.three | thirty-132 | 1490-2454 |
| ESR-three hundred | 990-1480 | nine.8-fifty eight.8 | 87.1-138.one | 26.4-167.eight | 37-185 | 3326-3446 |
| ESR-350 | 730-1480 | 9.8-58.eight | seventy eight.forty one-177.31 | fifty five-250 | ||
| ESR-50H | 1230-2120 | sixty three.7-98 | .forty five-two.02 | 2.05-6.12 | three-7.5 | one hundred sixty–170 |
| ESR-65H | 1240-2130 | 63.seven-98 | .78-two.fifty three | two.89-7.fifty five | 4-11 | 198-230 |
| ESR-80H | 1140-1900 | sixty three.7-ninety eight | 1.82-four.55 | 4.09-10.one | five.5-15 | 316-326 |
| ESR-100H | 1060-1980 | sixty three.seven-ninety eight | two.65-eight.06 | 6.36-seventeen.2 | 7.5-22 | 398-459 |
| ESR-125H | 980-1850 | 63.7-ninety eight | four.sixty four-eleven.23 | 8.92-24.two | eleven-thirty | 544-630 |
| ESR-150H | 810-1730 | 63.7-98 | 9.fifty three-25.seventy six | seventeen.16-65 | 18.5-75 | 752-1571 |
| ESR-200H | 810-1480 | sixty three.seven-98 | 25.34-fifty six.ninety two | forty two.34-a hundred and twenty | fifty five-132 | 1426-1934 |
| ESR-250H | 990-1480 | 63.7-98 | 58-93.seven | 83.2-205 | 90-220 | 2980-3468 |
| ESR300H | 990-1480 | 63.seven-98 | 86.9-134.one | 114.7-270 | 132-280 | 3476-3998 |
| ERF-245 | 650-980 | nine.8-ninety eight | forty seven.5-97.four | 16-183 | eighteen.5-200 | 3630-3690 |
| ERF-250 | 650-980 | nine.eight-98 | sixty one.six-one hundred twenty.four | 19-227 | 22-250 | 4450-4500 |
| ERF-290 | 650-980 | 9.eight-78.four | 92.three-128 | 22-213 | 30-250 | 4890-4710 |
| ERF-295 | 650-980 | nine.8-78.four | 97.3-152.five | 23-227 | 30-250 | 4890-4880 |
| ERF-297 | 650-980 | nine.eight-seventy eight.four | 87.5-167.6 | 26-249 | thirty-280 | 5330-5520 |
| ERF-three hundred | 650-980 | nine.8-78.4 | one hundred and one.five-188.seven | 29-278 | 37-315 | 5330-5520 |
| ERF-350 | 650-980 | nine.eight-seventy eight.4 | 126-224.9 | 34-249 | forty five-280 | 5210-6470 |
| ERG-three hundred | 590-730 | 9.8-ninety eight | 128.three-196 | 38-362 | 45-400 | 9440-15710 |
| ERG-350 | 590-730 | nine.eight-98 | 159.three-231.6 | 43-420 | fifty five-450 | 9700-1571 |
| ERG-four hundred | 590-730 | 9.eight-eighty three.3 | 203.one-290.9 | fifty two-449 | 75-500 | 10090-11390 |
| ERG-445 | 590-730 | nine.8-seventy three.five | 229.seven-327.8 | fifty eight-477 | 75-560 | 10600-12230 |
| ERG-450 | 590-730 | nine.eight-73.five | 262.four-366.2 | 64-496 | seventy five-560 | 10600-12230 |
| ERG-five hundred | 590-730 | 9.eight-63.seven | 327.four-452.four | 78-529 | 90-560 | 12790-14620 |
| ERF-240-V | 650-980 | -nine.8- -forty nine | 38.1-seventy eight | thirteen-seventy six | 18.five-90 | 3420-3285 |
| ERF-245-V | 650-980 | -nine.8- -49 | forty seven.5-ninety seven.4 | 16-ninety five | 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 | -9.eight- -forty nine | 72.6-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 | 84.three-166.eight | 26-a hundred and sixty | 30-180 | 5000-4980 |
| ERF-three hundred-V | 650-980 | -9.8- -49 | 97-192 | 29-178 | 37-200 | 5000-4980 |
| ERF-350-V | 650-980 | -9.eight- -forty nine | 116-225 | 34-209 | forty five-250 | 5400-5700 |
| ERG-300V | 590-730 | -9.eight- -49 | 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 | -9.8- -49 | 224.8-326.nine | 58-303 | 75-355 | 9900-10130 |
| ERG-450V | 590-730 | -nine.8- -49 | 255-365 | sixty four-335 | 75-four hundred | 11230-11300 |
| ERG-500V | 590-730 | -9.8- -49 | 314-452 | 78-412 | 132-450 | 13630-13850 |
| ERF-245W | 650-980 | -13.three- -fifty three.three | fifty three.5-one hundred and one | 21.five-102 | 30-110 | 3630-3360 |
| ERF-250W | 650-980 | -13.three- -fifty three.three | sixty nine-127 | 26.5-127 | thirty-a hundred and sixty | 3985-4115 |
| ERF-290W | 650-980 | -thirteen.three- -fifty three.three | eighty two.six-a hundred and fifty | thirty.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 | -thirteen.three- -53.three | ninety five-174 | 36-174 | forty five-200 | 5230-5130 |
| ERF-300W | 650-980 | -13.three- -53.3 | 109-195 | forty-193 | 55-220 | 5230-5130 |
| ERF-350W | 650-980 | -thirteen.three- -53.3 | 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-235.5 | 75-280 | 9500-9600 |
| ERG-400W | 590-730 | -13.3- -fifty three.3 | 220-276.six | 71-292 | ninety-315 | 9900-10130 |
| ERG-445W | 590-730 | -thirteen.3- -fifty three.3 | 244-294.six | eighty two-331 | ninety-400 | 11230-11300 |
| ERG450W | 590-730 | -13.three- -fifty three.three | 275-368.5 | ninety one-366 | one hundred ten-four hundred | 11230-11300 |
| ETRF-250 (240,250) |
650-980 | ninety eight-196 | 64.8-112 | one hundred thirty five-355 | a hundred and sixty-four hundred | 8700-8600 |
| ETRF-295 (245,295) |
650-980 | ninety eight-196 | eighty.8-139 | 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 | 98-176.4 | 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.three–80 | seventy two-121 | 75.six-121 | ninety-160 | 6100-6470 |
| ETRF-295W (245/295) |
650-980 | -fifty three.three–eighty | 93.8-154 | 99.five-186 | a hundred and ten-220 | 7000-6400 |
| ETRF-300W (2505/three hundred) |
650-980 | -53.three–80 | 116-189 | 115-220 | 132-250 | 7750-7760 |
| EL81WD | 580-980 | nine.eight-fifty eight.eight | 54.2-130 | eighteen-151 | 45-185 | 3595 |
| EL82WDB | 580-980 | nine.8-58.eight | seventy two.8-161 | 22-191 | 45-220 | 3860 |
| EL83WDA | 580-980 | nine.eight-fifty eight.9 | 101-213 | 28.5-202 | forty five-220 | 4300 |
| EL84WDA | 580-980 | nine.8-58.8 | 129-267 | 35.4-252 | 45-280 | 4720 |
| EL93WDA | 580-730 | nine.8-forty nine | 230-329 | 56.four-311 | seventy five-355 | 7765 |
| EL94WDA | 580-730 | 9.8-49 | 263-373 | sixty four-353 | 75-400 | 8130 |
| EL95WDA | 490-580 | nine.8-fifty eight.8 | 308-434 | eighty one.four-414 | 90-450 | 11500 |
| EL96WDA | 580 | fifty eight.eight | 381 | 497 | 560 | 11500 |
| E397WN | 1000-1650 | 40 | five-nine | |||
| E408WN | 870-1650 | 40 | 10-22 | |||
| E517WN | 980-1580 | forty | twenty-30 | |||
| E520WN | 930-1550 | 40 | 24-forty five | |||
| E607WN | 750-1250 | 40 | forty five-76 | |||
| E610WN | 750-1250 | 40 | 75-one hundred thirty |
Spare parts and composition of our roots compressor:
Package of our Roots Compressor
Pack into iron circumstance, two layer,blower physique and motor in decrease layer, inlet/out silencer etc in upper layer
Roots blower pack approach very same as iron circumstance, just adjust to Fumigation Cost-free Plywood Scenario
Our manufacturing unit is a specialist maker of Roots blowers which has more than 20 years’ experience in machinery
production. It is found in Xihu (West Lake) Dis. East Industrial Park, fifty kilometers to the east of Shan EPT provincial
funds— HangZhou. Our firm also has convenient site visitors transportation, as it is fifteen kilometers absent from
Diaozhen Town station of HangZhou-HangZhou expressway, and thirty kilometers absent from East HangZhou station of
ZheJiang -ZheJiang expressway.The leading product of our business is ESR -sort Roots Blower. The roots
vacuum pump is a new variety of substantial-efficiency roots blower, which is developed independently primarily based on the
domestic and foreign sophisticated technologies. A number of patented technologies have been adopted on Roots
Blower, and therefore we have produced important outcomes in energy conservation and noise reduction, and so forth.. So far, our
firm has invested much more than 30,000,000 RMB to introduce such sophisticated professional tools as
horizontal machining centre, vertical machining heart, two-way CNC area planer, CNC lathe, CNC milling
equipment, CNC planer, aircraft grinder, cylindrical grinding device, and three coordinates screening device.
Aside from, we have taken numerous measures to standardize the process flow this kind of as operating and cooperating
with numerous scientific research units, faculties and universities at residence and abroad. We also continually consider to
absorb and increase the domestic advanced creation technologies, so as to encourage the upgrading and
optimization of the solution and make the item good quality get to the innovative level at residence and overseas.
ESR -variety Roots Blower consists of numerous series these kinds of as 3-leaves Variety, Two-leaves Sort and Centrifugal
Kind,which can be more divided to hundreds of varieties. The products are widely utilized in sewage remedy,
pneumatic conveying,vacuum packaging, aquaculture, food processing, EPT power, petrochemical, cement,
mining and other industries. Our merchandise have such advantages as minimal sounds, energy preserving, steady good quality,
and lengthy service lifestyle, and so on.. With the product sales outlets throughout the domestic cash metropolitan areas, our merchandise sell properly all
over the country, and have been exported to North The united states,Russia, Malaysia, Indonesia, Vietnam, South Africa
and some other nations. Having received the ISO9001 Worldwide Good quality Program Certification, we have
proven and enhanced the good quality assurance of the items developing, producing, and set up.
From the method of layout, research and improvement to the concluded products, we have acquired the whole
process controlled independently, as a result delivering the total basis and trustworthiness guarantee for the products balance
and longevity. Getting a perfect sales network and soon after-product sales service, we offer our consumers with larger-
quality and far more productive service.All personnel of our organization sincerely welcome the broad masses of pals to
information, and negotiate company with us.
Our Roots Blower Workshop
Doosn Horzitonal Machine Heart
The Application of the Roots Blower
Upkeep and inspection
(one) Check all fasteners and finding pins situations no matter whether they are loosening.
(two) Usually check out whether the leakage phenomenon of the body.
(3) Spend interest to lubrication, volume of grease and noises when managing,
figure out no matter whether it functions below 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 point ≥ 200ºC)
The grease is butter (artificial lithium grease penetration 220-250, fall level ≥
190ºC). Exchange the lubricant and grease right after 1st two hundred hours managing, and substitute
yet again following a moth working. Later on, exchange the lubricant and grease according to the
surroundings and lubricant (grease) high quality suggest a appropriate EPT for three
months.
(five) Always examine the inlet air filter, clean or exchange the filter in time.
(6) Blower overload occasionally not immediately displayed, so pay out interest to
the intake and exhaust stress, bearing temperature and the recent increase trends
of motor to decide no matter whether the blower performs usually
(seven) Prior to disassembling the blower, the assembling relation and proportions
need to be recorded or calculated, make marks on elements to make sure the first
requirements after assembling.
(8) When newly device or overhaul, the oil tank should be cleaned prior to use
and propose exchange all grease following 8 several hours managing.
Widespread failure purpose and troubleshooting
| No | Failure | Achievable factors | Elimination strategies |
| one | Friction among the impeller |
(1) Impurities on the impeller, ensuing in the gap is also little (2) Gear use, ensuing in a big backlash (three) The equipment is not properly mounted, can not keep the impeller synchronization (four) Bearing put on ensuing in clearance rising. |
(one) Remove filth and verify whether there is damage elements (two) Modify the gear gap, exchange the gears if the equipment backlash is higher than the average thirty% to 50% (three)Re-assemble the gears, preserve the taper get in touch with region is to seventy five% (4)Exchange the bearing |
| two | Collision amongst impeller and wall, the impeller leading and casing |
(1) Installation hole is not correct (2) working strain is too higher, exceeding the specified worth (3) Running temperature is too substantial (4) Casing or foundation deformation, positioning enthusiast failure (5) Bearing axial place is not great |
(1) Modify the hole (two) Identify triggers of overloading, diminished the force to the specified price (3) Check the installation accuracy and reduce the pipe tension (four) Verify and restore bearings, and to ensure the clearance (5)Relocation |
| three | Temperature too high |
(1) Oil in tank is too significantly, also thick or too dirty (2) Filter or silencer is blocked (three)The force is increased than the specified worth (4)Too much put on of the impeller, massive hole (five)Bad air flow, indoor temperature is substantial, resulting in inlet air’s high temperature (six) The rotating velocity is way too reduced,outcome in the belt slipping. |
(one)Minimize the oil degree or depend on oil (two)Eliminate of blocking objects (3)Decreasing the force by way of the blower (4)Restore its clearance (5)Open up vents to decrease space temperature (6) Enhance pace to avert the belt slipping. |
| 4 | Insufficient movement |
(one) The inlet filter is blocked (2) Impeller wear and the hole will increase too considerably (three) Belt slipping (4) Massive imports force decline (five) Pipeline ventilation leakage |
(1) Thoroughly clean the filter dust and obstruction (2) Mend the gap (three)Tighten the belt and enhance the amount of belts (4)Modify the inlet stress to the specified benefit (five) Check out and repair the pipeline |
| 5 | Oil leaking or oil leaking into the enclosure |
(one)Higher tank place cause leakage from the discharge port (2) Seal dress in, ensuing in shaft oil spills (3) The strain is larger than the specified value |
(1)Lessen the oil level (two)Replace the seals (three)Clear the air vents, 2mm diameter faucet is set in the center chamber, open up the faucet underneath the wall |
| 6 | Abnormal vibration and sound |
(1)Bearing clearance exceeds the specified benefit or bearing wear (two) The gear backlash is way too massive, not in a restricted 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 triggered the collision brought on by overload, (five) Friction amongst the impeller and the inlet housing triggered by overheating (six) Unbalance of the impeller triggered by fouling or foreign human body (7) Anchor bolts or other fasteners are loosened |
(one)Change bearings or bearing seat (two)Reassemble gear and make sure backlash (three)Cleaning blower, verify the scenario is ruined (4)Check the back stress, examine the wheel and modify gap (5)Examine the filter and back again stress, increase the gap among the impeller inlet and the casing (6)Thoroughly clean the impeller and the casing, to ensure that the impeller clearance function (seven) Tighten the anchor bolts and leveling the foundation. |
| 7 | Motor overload |
(1)Compared with the required pressure, the strain difference is massive that the back again pressure or the inlet stress is higher (2) In contrast with the tools needs, blower stream is too large, so its stress raises (three)Inlet filter is blocked, or outlet pipe is obstructed or blocked (four) Collusion or friction (stuck) rotating elements (five) The oil degree is way too large (six) Slim V-belt is overheat, vibration is also large, or pulley is also tiny |
(1) Decrease the force to the specified worth (2) Exhaust the surplus gas into the atmosphere or minimize the blower velocity (3) Get rid of the obstructions (4)Instantly shut down, check out the explanation (5) Change the oil to the proper stage (six) Examine the belt rigidity, and replaced it with big diameter pulley. |
Our Service
1. Pre promote service 2. Following market service
a. advise the suited model c. on the internet technological support,
b. manufacturing unit tour d. complete daily life spare elements and techinical help
Gurantee
12 months gurantee for our roots blowers
/ The use of unique products manufacturer’s (OEM) element quantities 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 parts contained herein are not sponsored, authorized, or produced by the OEM. /
