We – EPG Team the greatest couplings and gears manufacturing unit in China with five diverse branches. For more details: Cell/whatsapp/telegram/Kakao us at: 0086-13083988828 /
We make all sorts of roots blower, centrifugal blower, Our Principal merchandise are as underneath:
| Kind | Diameter | Price of flow | Force |
| ESR-MJ(Intense Type) | Φ50~Φ300mm | .5~140m³/min | 9.8KPa~ninety eight.8Kpa |
| ESR(Regular Variety) | Φ50~Φ350mm | .5~140m³/min | nine.8KPa~78.4Kpa |
| ESR-H(Substantial-force Variety) | Φ50~Φ350mm | .7~160m³/min | 58.8KPa~ninety eight.8Kpa |
| ESR-V(Vacuum Pump) | Φ50~Φ350mm | .five~160m³/min | nine.8KPa~53.3Kpa |
| EL Collection | Φ200~Φ600mm | twenty.three~750m³/min | 9.8KPa~58.8Kpa |
| Multistage Centrifugal Blower or C-Collection |
Φ250~Φ500mm | fifty~500m³/min | nine.8KPa~98Kpa |
| ERR-ERG Sort | Φ250~Φ500mm | one hundred twenty~420m³/min | nine.8KPa~98.8Kpa |
The working basic principle of the a few-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 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
objective of blowing.
Attribute of our roots blower:
1. Big adjustment of the air volume
2. Reduced Sounds
3. Higher efficiency
four. Reduced strength cosumption
five. Prolonged time lifestyle
6. Reputable operating, straightforward maintenance,little footprint
The parameters of our roots blower:
| Sort | Ratary Velocity (r/min) |
Pressure Increase (Kpa) |
Capacity (m/min) |
Shaft Power (Kw) |
Motor | Unit Maximn Excess weight(Kg) |
| Electricity (Kw) |
||||||
| ESR-50 | 1100-2120 | nine.eight-58.8 | .65-two.fifty eight | .3-3.54 | .seventy five-four | 128-158 |
| ESR-sixty five | 1100-2130 | 9.8-58.eight | .ninety four-three.sixty six | .38-four.forty six | .seventy five-5.five | 155-185 |
| ESR-80 | 1140-1900 | 9.eight-fifty eight.eight | 2.34-five.forty three | one.04-7.42 | 2.two-11 | one hundred fifty five-277 |
| ESR-one hundred | 1060-1980 | nine.eight-fifty eight.8 | 4.fifty seven-nine.05 | 1.35-twelve.fifteen | three-15 | 309-377 |
| ESR-one hundred twenty five | 980-1850 | 9.eight-fifty eight.8 | 5.35-twelve.4 | one.65-five.19 | five.five-eighteen.five | 408-451 |
| ESR-125C | 970-1830 | nine.8-fifty eight.eight | seven.5-seventeen.fifty seven | three.two-eighteen.5 | four-22 | 408-451 |
| ESR-150 | 810-1730 | 9.eight-58.8 | ten.37-27.15 | three.eighty four-40.82 | seven.five-45 | 688-848 |
| ESR-a hundred seventy five | 970-1520 | nine.8-fifty eight.eight | 19.65-36.sixty five | seven.2-forty five.95 | eleven-55 | 980-1080 |
| ESR-200B | 740-1450 | nine.eight-fifty eight.eight | 19.sixty five-44.8 | ten.15-60.44 | fifteen-75 | 1272-1546 |
| ESR-200 | 810-1480 | nine.eight-fifty eight.8 | 27.sixty five-59.2 | eight.05-80,twelve | 15-ninety | 1272-1546 |
| ESR-250B | 1100-1480 | 9.eight-fifty eight.8 | fifty four.77-77.55 | 19.97-90.97 | thirty-110 | 1490-2454 |
| ESR-250 | 990-1480 | nine.eight-fifty eight.8 | sixty one.4-97.52 | 20.one-117.three | thirty-132 | 1490-2454 |
| ESR-three hundred | 990-1480 | 9.8-58.eight | 87.one-138.1 | 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 | 63.7-ninety eight | .forty five-2.02 | two.05-six.12 | three-seven.5 | 160–a hundred and seventy |
| ESR-65H | 1240-2130 | sixty three.7-ninety eight | .78-two.53 | two.89-7.fifty five | 4-eleven | 198-230 |
| ESR-80H | 1140-1900 | sixty three.7-98 | one.82-four.fifty five | four.09-ten.1 | 5.five-15 | 316-326 |
| ESR-100H | 1060-1980 | sixty three.7-98 | 2.sixty five-8.06 | 6.36-17.2 | seven.five-22 | 398-459 |
| ESR-125H | 980-1850 | 63.7-98 | 4.sixty four-eleven.23 | 8.92-24.2 | eleven-30 | 544-630 |
| ESR-150H | 810-1730 | sixty three.7-98 | 9.fifty three-25.seventy six | 17.sixteen-65 | 18.five-75 | 752-1571 |
| ESR-200H | 810-1480 | sixty three.7-ninety eight | twenty five.34-fifty six.92 | 42.34-120 | 55-132 | 1426-1934 |
| ESR-250H | 990-1480 | 63.seven-98 | 58-ninety three.seven | eighty three.two-205 | 90-220 | 2980-3468 |
| ESR300H | 990-1480 | 63.seven-98 | 86.nine-134.1 | 114.seven-270 | 132-280 | 3476-3998 |
| ERF-245 | 650-980 | nine.eight-98 | 47.5-ninety seven.4 | sixteen-183 | eighteen.five-200 | 3630-3690 |
| ERF-250 | 650-980 | 9.8-ninety eight | sixty one.six-120.four | 19-227 | 22-250 | 4450-4500 |
| ERF-290 | 650-980 | 9.8-78.4 | 92.three-128 | 22-213 | thirty-250 | 4890-4710 |
| ERF-295 | 650-980 | nine.8-78.4 | 97.three-152.five | 23-227 | 30-250 | 4890-4880 |
| ERF-297 | 650-980 | 9.8-78.4 | 87.5-167.six | 26-249 | 30-280 | 5330-5520 |
| ERF-three hundred | 650-980 | 9.eight-78.4 | a hundred and one.five-188.7 | 29-278 | 37-315 | 5330-5520 |
| ERF-350 | 650-980 | 9.eight-78.4 | 126-224.9 | 34-249 | forty five-280 | 5210-6470 |
| ERG-300 | 590-730 | 9.eight-98 | 128.3-196 | 38-362 | forty five-400 | 9440-15710 |
| ERG-350 | 590-730 | nine.eight-98 | 159.3-231.6 | forty three-420 | 55-450 | 9700-1571 |
| ERG-four hundred | 590-730 | nine.8-eighty three.three | 203.one-290.9 | fifty two-449 | seventy five-five hundred | 10090-11390 |
| ERG-445 | 590-730 | 9.eight-seventy three.five | 229.seven-327.8 | 58-477 | seventy five-560 | 10600-12230 |
| ERG-450 | 590-730 | nine.eight-seventy three.five | 262.four-366.2 | 64-496 | seventy five-560 | 10600-12230 |
| ERG-five hundred | 590-730 | 9.eight-63.7 | 327.four-452.4 | 78-529 | 90-560 | 12790-14620 |
| ERF-240-V | 650-980 | -9.eight- -forty nine | 38.1-78 | 13-76 | eighteen.five-90 | 3420-3285 |
| ERF-245-V | 650-980 | -9.8- -49 | forty seven.five-ninety seven.4 | sixteen-ninety five | 22-one hundred ten | 3425-3360 |
| ERF-250-V | 650-980 | -nine.8- -forty nine | sixty three-one hundred twenty | 19-117 | 22-132 | 3910-3830 |
| ERF-290-V | 650-980 | -nine.eight- -49 | seventy two.six-a hundred and forty four | 22-136 | thirty-160 | 4415-4270 |
| ERF-295-V | 650-980 | -nine.8- -49 | 76.6-152 | 23-145 | 30-160 | 4425-4485 |
| ERF-297-V | 650-980 | -9.8- -forty nine | eighty four.three-166.eight | 26-a hundred and sixty | thirty-one hundred eighty | 5000-4980 |
| ERF-300-V | 650-980 | -9.eight- -forty nine | ninety seven-192 | 29-178 | 37-two hundred | 5000-4980 |
| ERF-350-V | 650-980 | -9.8- -49 | 116-225 | 34-209 | forty five-250 | 5400-5700 |
| ERG-300V | 590-730 | -nine.8- -49 | 133-193 | 38-184 | forty five-220 | 7800-9100 |
| ERG-350V | 590-730 | -9.8- -forty nine | 163-231 | 43-216 | 55-250 | 9500-9470 |
| ERG-400V | 590-730 | -nine.eight- -49 | 199-290 | fifty two-269 | seventy five-315 | 9900-10130 |
| ERG-445V | 590-730 | -9.eight- -49 | 224.eight-326.9 | fifty eight-303 | seventy five-355 | 9900-10130 |
| ERG-450V | 590-730 | -9.8- -49 | 255-365 | sixty four-335 | 75-four hundred | 11230-11300 |
| ERG-500V | 590-730 | -9.eight- -forty nine | 314-452 | seventy eight-412 | 132-450 | 13630-13850 |
| ERF-245W | 650-980 | -thirteen.3- -53.3 | fifty three.five-one hundred and one | 21.5-102 | thirty-110 | 3630-3360 |
| ERF-250W | 650-980 | -13.three- -fifty three.3 | 69-127 | 26.five-127 | thirty-160 | 3985-4115 |
| ERF-290W | 650-980 | -thirteen.3- -fifty three.three | 82.six-150 | 30.five-149 | 37-185 | 4340-4580 |
| ERF-295W | 650-980 | -thirteen.three- -fifty three.three | 87-158 | 32-158 | 37-185 | 4440-4580 |
| ERF-297W | 650-980 | -13.3- -53.three | ninety five-174 | 36-174 | forty five-200 | 5230-5130 |
| ERF-300W | 650-980 | -13.three- -53.three | 109-195 | forty-193 | fifty five-220 | 5230-5130 |
| ERF-350W | 650-980 | -thirteen.3- -53.3 | 129-230 | fifty-230 | 75-250 | 5840-5670 |
| ERG-300W | 590-730 | -thirteen.three- -53.3 | 142-197 | fifty two-201 | seventy five-220 | 9100-9000 |
| ERF-350W | 590-730 | -13.three- -53.3 | 168-234.4 | fifty nine-235.5 | 75-280 | 9500-9600 |
| ERG-400W | 590-730 | -thirteen.three- -fifty three.three | 220-276.six | 71-292 | 90-315 | 9900-10130 |
| ERG-445W | 590-730 | -13.3- -fifty three.3 | 244-294.six | eighty two-331 | 90-four hundred | 11230-11300 |
| ERG450W | 590-730 | -thirteen.three- -53.three | 275-368.5 | ninety one-366 | a hundred and ten-four hundred | 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 | ninety eight-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 (three hundred,four hundred) |
590-740 | ninety eight-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 | -fifty three.3–80 | seventy two-121 | 75.6-121 | ninety-one hundred sixty | 6100-6470 |
| ETRF-295W (245/295) |
650-980 | -53.3–eighty | ninety three.eight-154 | 99.five-186 | one hundred ten-220 | 7000-6400 |
| ETRF-300W (2505/three hundred) |
650-980 | -53.3–80 | 116-189 | one hundred fifteen-220 | 132-250 | 7750-7760 |
| EL81WD | 580-980 | 9.8-58.eight | 54.2-130 | 18-151 | 45-185 | 3595 |
| EL82WDB | 580-980 | 9.eight-58.eight | seventy two.8-161 | 22-191 | 45-220 | 3860 |
| EL83WDA | 580-980 | nine.8-fifty eight.9 | a hundred and one-213 | 28.5-202 | forty five-220 | 4300 |
| EL84WDA | 580-980 | nine.eight-fifty eight.8 | 129-267 | 35.4-252 | 45-280 | 4720 |
| EL93WDA | 580-730 | nine.8-forty nine | 230-329 | fifty six.four-311 | 75-355 | 7765 |
| EL94WDA | 580-730 | 9.8-49 | 263-373 | sixty four-353 | seventy five-400 | 8130 |
| EL95WDA | 490-580 | 9.8-58.eight | 308-434 | eighty one.4-414 | ninety-450 | 11500 |
| EL96WDA | 580 | 58.eight | 381 | 497 | 560 | 11500 |
| E397WN | a thousand-1650 | forty | 5-9 | |||
| E408WN | 870-1650 | 40 | 10-22 | |||
| E517WN | 980-1580 | forty | twenty-thirty | |||
| E520WN | 930-1550 | forty | 24-forty five | |||
| E607WN | 750-1250 | forty | 45-76 | |||
| E610WN | 750-1250 | 40 | 75-one hundred thirty |
Spare areas and construction of our roots blower:
Bundle of our Roots Blower
Pack into iron circumstance, two layer,blower physique and motor in lower layer, inlet/out silencer and so forth in upper layer
Roots blower pack method very same as iron scenario, just adjust to Fumigation Cost-free Plywood Case
Our manufacturing unit is a expert company of Roots blowers which has over 20 years’ experience in equipment
manufacturing. It is positioned in Xihu (West Lake) Dis. East Industrial Park, 50 kilometers to the east of Shan EPT provincial
capital— HangZhou. Our company also has hassle-free targeted traffic transportation, as it is fifteen kilometers away from
Diaozhen City station of HangZhou-HangZhou expressway, and thirty kilometers away from East HangZhou station of
ZheJiang -ZheJiang expressway.The major solution of our company is ESR -kind Roots Blower. The roots
vacuum pump is a new sort of high-effectiveness roots blower, which is produced independently based mostly on the
domestic and international superior technologies. Many patented technologies have been adopted on Roots
Blower, and therefore we have made substantial results in energy conservation and noise reduction, and so on.. So significantly, our
company has invested far more than 30,000,000 RMB to introduce such superior specialist tools as
horizontal machining centre, vertical machining heart, two-way CNC surface area planer, CNC lathe, CNC milling
equipment, CNC planer, plane grinder, cylindrical grinding machine, and three coordinates screening machine.
In addition to, we have taken a variety of steps to standardize the approach circulation this sort of as working and cooperating
with numerous scientific research units, schools and universities at property and abroad. We also repeatedly try to
take in and boost the domestic advanced generation systems, so as to encourage the upgrading and
optimization of the product and make the merchandise top quality reach the advanced stage at home and overseas.
ESR -sort Roots Blower contains a number of collection this kind of as Three-leaves Variety, Two-leaves Type and Centrifugal
Sort,which can be additional divided to hundreds of versions. The goods are commonly used in sewage remedy,
pneumatic conveying,vacuum packaging, aquaculture, meals processing, EPT energy, petrochemical, cement,
mining and other industries. Our products have such positive aspects as minimal sounds, vitality conserving, steady good quality,
and prolonged support daily life, and so on.. With the sales outlets throughout the domestic cash cities, our products sell effectively all
in excess of the country, and have been exported to North The us,Russia, Malaysia, Indonesia, Vietnam, South Africa
and some other international locations. Obtaining acquired the ISO9001 International Top quality Technique Certification, we have
set up and improved the high quality assurance of the items creating, manufacturing, and installation.
From the procedure of design, research and improvement to the completed items, we have got the entire
method controlled independently, as a result offering the total basis and trustworthiness assure for the goods stability
and longevity. Getting a perfect revenue network and soon after-sales services, we supply our customers with higher-
top quality and a lot more efficient services.All staff of our organization sincerely welcome the broad masses of friends to
information, and negotiate organization with us.
Our Roots Blower Workshop
Doosn Horzitonal Device Heart
The Application of the Roots Blower
Routine maintenance and inspection
(one) Verify all fasteners and locating pins problems regardless of whether they are loosening.
(2) Constantly check out whether or not the leakage phenomenon of the body.
(3) Shell out interest to lubrication, amount of grease and noises when running,
figure out regardless of whether it works under the necessary situations.
(four) 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 (synthetic lithium grease penetration 220-250, drop point ≥
190ºC). Change the lubricant and grease after 1st 200 several hours running, and substitute
yet again after a moth running. Later, change the lubricant and grease in accordance to the
surroundings and lubricant (grease) good quality suggest a suitable EPT for three
months.
(5) Usually examine the inlet air filter, thoroughly clean or change the filter in time.
(6) Blower overload at times not quickly exhibited, so pay out attention to
the intake and exhaust pressure, bearing temperature and the existing increase traits
of motor to decide whether the blower performs normally
(seven) Prior to disassembling the blower, the assembling relation and dimensions
must be recorded or calculated, make marks on components to make certain the first
demands after assembling.
(8) When recently equipment or overhaul, the oil tank ought to be cleaned prior to use
and suggest replace all grease right after eight several hours working.
Typical failure explanation and troubleshooting
| No | Failure | Attainable causes | Elimination strategies |
| one | Friction in between the impeller |
(one) Impurities on the impeller, resulting in the hole is also modest (two) Equipment dress in, resulting in a big backlash (3) The gear is not well set, can not maintain the impeller synchronization (four) Bearing use resulting in clearance escalating. |
(one) Get rid of grime and examine whether or not there is harm elements (2) Modify the gear gap, exchange the gears if the equipment backlash is better than the common thirty% to fifty% (3)Re-assemble the gears, hold the taper get in touch with area is to 75% (four)Substitute the bearing |
| two | Collision between impeller and wall, the impeller prime and casing |
(one) Installation gap is not right (2) working pressure is as well high, exceeding the specified worth (three) Operating temperature is also substantial (four) Casing or foundation deformation, positioning admirer failure (5) Bearing axial place is not excellent |
(1) Modify the hole (2) Determine leads to of overloading, lowered the stress to the specified benefit (three) Check out the set up precision and reduce the pipe stress (four) Check out and mend bearings, and to ensure the clearance (five)Relocation |
| three | Temperature way too high |
(one) Oil in tank is also significantly, way too thick or also soiled (2) Filter or silencer is blocked (3)The force is greater than the specified price (four)Too much put on of the impeller, massive gap (5)Very poor ventilation, indoor temperature is substantial, resulting in inlet air’s high temperature (6) The rotating pace is too lower,result in the belt slipping. |
(1)Decrease the oil level or count on oil (two)Take away of blocking objects (3)Minimizing the stress by means of the blower (four)Restore its clearance (5)Open vents to lessen place temperature (six) Enhance speed to prevent the belt slipping. |
| 4 | Inadequate circulation |
(1) The inlet filter is blocked (two) Impeller put on and the gap boosts as well a lot (3) Belt slipping (4) Big imports force reduction (five) Pipeline ventilation leakage |
(1) Clear the filter dust and obstruction (2) Mend the gap (3)Tighten the belt and enhance the quantity of belts (four)Adjust the inlet strain to the specified worth (5) Verify and fix the pipeline |
| five | Oil leaking or oil leaking into the enclosure |
(1)Substantial tank place result in leakage from the discharge port (2) Seal wear, resulting in shaft oil spills (3) The stress is greater than the specified worth |
(1)Minimize the oil amount (2)Exchange the seals (three)Clear the air vents, 2mm diameter faucet is mounted in the center chamber, open up the faucet below the wall |
| 6 | Abnormal vibration and sound |
(1)Bearing clearance exceeds the specified value or bearing put on (two) The gear backlash is too massive, not in a limited mounted (3) The overseas 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 among the impeller and the inlet housing caused by overheating (six) Unbalance of the impeller triggered by fouling or overseas physique (seven) Anchor bolts or other fasteners are loosened |
(1)Exchange bearings or bearing seat (two)Reassemble equipment and make certain backlash (3)Cleaning blower, examine the case is broken (4)Check the back stress, examine the wheel and adjust hole (5)Check out the filter and back pressure, boost the gap between the impeller inlet and the casing (six)Clean the impeller and the casing, to make sure that the impeller clearance function (7) Tighten the anchor bolts and leveling the base. |
| seven | Motor overload |
(1)When compared with the required force, the force difference is big that the back pressure or the inlet pressure is large (2) In comparison with the equipment requirements, blower circulation is way too massive, so its force will increase (3)Inlet filter is blocked, or outlet pipe is obstructed or blocked (4) Collusion or friction (caught) rotating components (5) The oil degree is too large (6) Slim V-belt is overheat, vibration is way too massive, or pulley is too tiny |
(one) Decrease the force to the specified value (2) Exhaust the excessive fuel into the environment or decrease the blower pace (3) Take away the obstructions (four)Quickly shut down, examine the reason (5) Modify the oil to the right stage (6) Verify the belt stress, and replaced it with big diameter pulley. |
Our Provider
one. Pre promote service two. After promote service
a. suggest the suitable model c. on-line technical support,
b. manufacturing unit tour d. complete daily life spare areas and techinical support
Gurantee
12 months gurantee for our roots blowers
/ The use of first equipment manufacturer’s (OEM) element figures or emblems , e.g. CASE® and John Deere® are for reference purposes only and for indicating merchandise use and compatibility. Our business and the detailed EPT areas contained herein are not sponsored, approved, or created by the OEM. /
