We – EPG Group the most significant couplings and gears factory in China with 5 diverse branches. For much more specifics: Cell/whatsapp/telegram/Kakao us at: 0086-13083988828 /
We make all kinds of roots blower, centrifugal blower, Our Major items are as below:
| Type | Diameter | Charge of movement | Pressure |
| ESR-MJ(Intensive Kind) | Φ50~Φ300mm | .five~140m³/min | nine.8KPa~98.8Kpa |
| ESR(Normal Kind) | Φ50~Φ350mm | .5~140m³/min | 9.8KPa~seventy eight.4Kpa |
| ESR-H(Higher-strain Kind) | Φ50~Φ350mm | .7~160m³/min | 58.8KPa~98.8Kpa |
| ESR-V(Vacuum Pump) | Φ50~Φ350mm | .5~160m³/min | 9.8KPa~53.3Kpa |
| EL Series | Φ200~Φ600mm | 20.3~750m³/min | 9.8KPa~fifty eight.8Kpa |
| Multistage Centrifugal Blower or C-Sequence |
Φ250~Φ500mm | 50~500m³/min | 9.8KPa~98Kpa |
| ERR-ERG Type | Φ250~Φ500mm | 120~420m³/min | nine.8KPa~ninety eight.8Kpa |
The working theory 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 equally sides of the cavity. Via 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 gasoline in the chamber is pushed to accomplish the
goal of blowing.
Attribute of our roots blower:
1. Huge adjustment of the air volume
2. Reduced Sound
three. High effectiveness
4. Low power cosumption
five. Lengthy time life
six. Reputable working, straightforward servicing,little footprint
The parameters of our roots blower:
| Type | Ratary Pace (r/min) |
Force Rise (Kpa) |
Potential (m/min) |
Shaft Electrical power (Kw) |
Motor | Device Maximn Excess weight(Kg) |
| Electrical power (Kw) |
||||||
| ESR-fifty | 1100-2120 | 9.eight-fifty eight.eight | .sixty five-2.58 | .3-3.54 | .seventy five-four | 128-158 |
| ESR-sixty five | 1100-2130 | nine.eight-58.8 | .94-3.sixty six | .38-4.forty six | .seventy five-five.5 | 155-185 |
| ESR-80 | 1140-1900 | nine.eight-fifty eight.8 | 2.34-5.43 | one.04-seven.42 | two.two-11 | one hundred fifty five-277 |
| ESR-a hundred | 1060-1980 | 9.eight-58.eight | 4.fifty seven-nine.05 | 1.35-12.15 | three-15 | 309-377 |
| ESR-one hundred twenty five | 980-1850 | nine.8-58.8 | five.35-twelve.4 | one.65-five.19 | 5.5-eighteen.5 | 408-451 |
| ESR-125C | 970-1830 | nine.eight-fifty eight.eight | 7.five-seventeen.57 | 3.two-18.five | four-22 | 408-451 |
| ESR-one hundred fifty | 810-1730 | 9.8-fifty eight.8 | 10.37-27.15 | three.eighty four-forty.82 | seven.5-45 | 688-848 |
| ESR-a hundred seventy five | 970-1520 | 9.8-fifty eight.eight | 19.65-36.65 | seven.two-forty five.95 | eleven-fifty five | 980-1080 |
| ESR-200B | 740-1450 | nine.8-fifty eight.8 | 19.65-forty four.8 | 10.fifteen-60.forty four | 15-seventy five | 1272-1546 |
| ESR-200 | 810-1480 | 9.eight-58.eight | 27.sixty five-fifty nine.two | eight.05-80,12 | 15-90 | 1272-1546 |
| ESR-250B | 1100-1480 | 9.8-58.eight | fifty four.seventy seven-77.fifty five | 19.97-90.ninety seven | thirty-a hundred and ten | 1490-2454 |
| ESR-250 | 990-1480 | 9.8-fifty eight.eight | sixty one.4-ninety seven.fifty two | twenty.one-117.three | thirty-132 | 1490-2454 |
| ESR-300 | 990-1480 | 9.8-58.eight | 87.one-138.1 | 26.4-167.eight | 37-185 | 3326-3446 |
| ESR-350 | 730-1480 | nine.8-58.8 | 78.forty one-177.31 | fifty five-250 | ||
| ESR-50H | 1230-2120 | 63.7-ninety eight | .45-2.02 | 2.05-six.twelve | three-seven.five | a hundred and sixty–one hundred seventy |
| ESR-65H | 1240-2130 | 63.7-ninety eight | .seventy eight-two.53 | two.89-seven.fifty five | four-11 | 198-230 |
| ESR-80H | 1140-1900 | 63.7-ninety eight | 1.eighty two-four.55 | four.09-ten.one | 5.five-15 | 316-326 |
| ESR-100H | 1060-1980 | 63.seven-98 | 2.sixty five-8.06 | six.36-seventeen.two | 7.5-22 | 398-459 |
| ESR-125H | 980-1850 | sixty three.7-ninety eight | four.sixty four-11.23 | eight.ninety two-24.two | eleven-30 | 544-630 |
| ESR-150H | 810-1730 | sixty three.7-98 | nine.53-25.76 | 17.16-sixty five | eighteen.5-seventy five | 752-1571 |
| ESR-200H | 810-1480 | sixty three.seven-ninety eight | 25.34-fifty six.ninety two | forty two.34-120 | fifty five-132 | 1426-1934 |
| ESR-250H | 990-1480 | 63.seven-98 | fifty eight-ninety three.7 | eighty three.two-205 | 90-220 | 2980-3468 |
| ESR300H | 990-1480 | sixty three.seven-ninety eight | 86.9-134.1 | 114.seven-270 | 132-280 | 3476-3998 |
| ERF-245 | 650-980 | nine.eight-98 | forty seven.five-97.four | sixteen-183 | eighteen.5-two hundred | 3630-3690 |
| ERF-250 | 650-980 | nine.8-ninety eight | sixty one.6-120.four | 19-227 | 22-250 | 4450-4500 |
| ERF-290 | 650-980 | 9.8-seventy eight.four | ninety two.three-128 | 22-213 | 30-250 | 4890-4710 |
| ERF-295 | 650-980 | 9.8-seventy eight.four | 97.three-152.five | 23-227 | 30-250 | 4890-4880 |
| ERF-297 | 650-980 | nine.8-78.four | 87.five-167.6 | 26-249 | thirty-280 | 5330-5520 |
| ERF-three hundred | 650-980 | 9.eight-seventy eight.four | a hundred and one.five-188.seven | 29-278 | 37-315 | 5330-5520 |
| ERF-350 | 650-980 | 9.eight-seventy eight.four | 126-224.9 | 34-249 | 45-280 | 5210-6470 |
| ERG-three hundred | 590-730 | nine.eight-ninety eight | 128.three-196 | 38-362 | 45-400 | 9440-15710 |
| ERG-350 | 590-730 | nine.8-ninety eight | 159.three-231.6 | 43-420 | 55-450 | 9700-1571 |
| ERG-400 | 590-730 | nine.eight-eighty three.3 | 203.one-290.nine | fifty two-449 | 75-five hundred | 10090-11390 |
| ERG-445 | 590-730 | nine.eight-73.5 | 229.7-327.8 | fifty eight-477 | 75-560 | 10600-12230 |
| ERG-450 | 590-730 | 9.8-73.five | 262.4-366.2 | 64-496 | 75-560 | 10600-12230 |
| ERG-five hundred | 590-730 | 9.eight-sixty three.7 | 327.four-452.four | 78-529 | ninety-560 | 12790-14620 |
| ERF-240-V | 650-980 | -nine.8- -49 | 38.1-seventy eight | 13-76 | 18.five-90 | 3420-3285 |
| ERF-245-V | 650-980 | -nine.8- -49 | forty seven.five-97.four | 16-ninety five | 22-one hundred ten | 3425-3360 |
| ERF-250-V | 650-980 | -9.8- -49 | sixty three-a hundred and twenty | 19-117 | 22-132 | 3910-3830 |
| ERF-290-V | 650-980 | -nine.8- -49 | 72.six-one hundred forty four | 22-136 | 30-one hundred sixty | 4415-4270 |
| ERF-295-V | 650-980 | -nine.eight- -forty nine | 76.6-152 | 23-one hundred forty five | thirty-one hundred sixty | 4425-4485 |
| ERF-297-V | 650-980 | -9.8- -49 | 84.three-166.eight | 26-one hundred sixty | 30-180 | 5000-4980 |
| ERF-300-V | 650-980 | -9.8- -forty nine | ninety seven-192 | 29-178 | 37-200 | 5000-4980 |
| ERF-350-V | 650-980 | -9.eight- -49 | 116-225 | 34-209 | 45-250 | 5400-5700 |
| ERG-300V | 590-730 | -9.8- -49 | 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 | -nine.eight- -49 | 224.eight-326.nine | 58-303 | 75-355 | 9900-10130 |
| ERG-450V | 590-730 | -nine.eight- -forty nine | 255-365 | sixty four-335 | 75-four hundred | 11230-11300 |
| ERG-500V | 590-730 | -nine.eight- -forty nine | 314-452 | seventy eight-412 | 132-450 | 13630-13850 |
| ERF-245W | 650-980 | -13.three- -53.three | 53.five-one hundred and one | 21.5-102 | thirty-one hundred ten | 3630-3360 |
| ERF-250W | 650-980 | -13.3- -fifty three.3 | sixty nine-127 | 26.five-127 | 30-160 | 3985-4115 |
| ERF-290W | 650-980 | -thirteen.3- -fifty three.3 | eighty two.6-one hundred fifty | 30.5-149 | 37-185 | 4340-4580 |
| ERF-295W | 650-980 | -13.three- -fifty three.three | 87-158 | 32-158 | 37-185 | 4440-4580 |
| ERF-297W | 650-980 | -thirteen.3- -fifty three.3 | ninety five-174 | 36-174 | 45-200 | 5230-5130 |
| ERF-300W | 650-980 | -thirteen.three- -fifty three.3 | 109-195 | forty-193 | 55-220 | 5230-5130 |
| ERF-350W | 650-980 | -13.3- -fifty three.3 | 129-230 | fifty-230 | 75-250 | 5840-5670 |
| ERG-300W | 590-730 | -13.three- -fifty three.three | 142-197 | 52-201 | 75-220 | 9100-9000 |
| ERF-350W | 590-730 | -13.3- -fifty three.three | 168-234.4 | fifty nine-235.five | seventy five-280 | 9500-9600 |
| ERG-400W | 590-730 | -thirteen.three- -53.3 | 220-276.6 | seventy one-292 | 90-315 | 9900-10130 |
| ERG-445W | 590-730 | -thirteen.3- -fifty three.3 | 244-294.6 | 82-331 | 90-400 | 11230-11300 |
| ERG450W | 590-730 | -thirteen.three- -fifty three.three | 275-368.5 | 91-366 | one hundred ten-four hundred | 11230-11300 |
| ETRF-250 (240,250) |
650-980 | 98-196 | sixty four.eight-112 | one hundred thirty five-355 | one hundred sixty-400 | 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 | ninety eight-176.four | 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-four hundred (300,400) |
590-740 | ninety eight-176.4 | 205-273 | 380-773 | 450-900 | 21350-24200 |
| ETRG-450 (350,450) |
590-740 | ninety eight-176.4 | 263-428 | 476-955 | 560-a thousand | 24200-27600 |
| ETRF-250W (240,250) |
650-980 | -fifty three.three–80 | seventy two-121 | 75.6-121 | 90-a hundred and sixty | 6100-6470 |
| ETRF-295W (245/295) |
650-980 | -fifty three.three–eighty | 93.eight-154 | ninety nine.five-186 | a hundred and ten-220 | 7000-6400 |
| ETRF-300W (2505/three hundred) |
650-980 | -53.three–eighty | 116-189 | a hundred and fifteen-220 | 132-250 | 7750-7760 |
| EL81WD | 580-980 | nine.eight-fifty eight.8 | fifty four.two-a hundred thirty | eighteen-151 | 45-185 | 3595 |
| EL82WDB | 580-980 | nine.eight-58.eight | seventy two.eight-161 | 22-191 | 45-220 | 3860 |
| EL83WDA | 580-980 | 9.eight-fifty eight.9 | 101-213 | 28.five-202 | forty five-220 | 4300 |
| EL84WDA | 580-980 | 9.eight-58.8 | 129-267 | 35.four-252 | forty five-280 | 4720 |
| EL93WDA | 580-730 | nine.8-forty nine | 230-329 | 56.4-311 | seventy five-355 | 7765 |
| EL94WDA | 580-730 | 9.8-49 | 263-373 | 64-353 | seventy five-four hundred | 8130 |
| EL95WDA | 490-580 | 9.8-fifty eight.eight | 308-434 | 81.four-414 | 90-450 | 11500 |
| EL96WDA | 580 | 58.eight | 381 | 497 | 560 | 11500 |
| E397WN | one thousand-1650 | forty | 5-9 | |||
| E408WN | 870-1650 | forty | 10-22 | |||
| E517WN | 980-1580 | forty | 20-thirty | |||
| E520WN | 930-1550 | 40 | 24-45 | |||
| E607WN | 750-1250 | forty | 45-76 | |||
| E610WN | 750-1250 | 40 | 75-one hundred thirty |
Spare parts and composition of our roots blower:
Bundle of our Roots Blower
Pack into iron scenario, two layer,blower human body and motor in decrease layer, inlet/out silencer and so forth in upper layer
Roots blower pack method exact same as iron situation, just adjust to Fumigation Cost-free Plywood Scenario
Our factory is a skilled manufacturer of Roots blowers which has more than 20 years’ experience in equipment
producing. It is situated in Xihu (West Lake) Dis. East Industrial Park, 50 kilometers to the east of Shan EPT provincial
capital— HangZhou. Our business also has practical visitors transportation, as it is 15 kilometers away from
Diaozhen City station of HangZhou-HangZhou expressway, and thirty kilometers away from East HangZhou station of
ZheJiang -ZheJiang expressway.The top solution of our organization is ESR -kind Roots Blower. The roots
vacuum pump is a new kind of high-effectiveness roots blower, which is created independently based on the
domestic and foreign sophisticated technologies. A number of patented technologies have been adopted on Roots
Blower, and therefore we have produced considerable results in energy conservation and noise reduction, and many others.. So significantly, our
organization has invested much more than 30,000,000 RMB to introduce such superior professional tools as
horizontal machining center, vertical machining middle, two-way CNC area planer, CNC lathe, CNC milling
device, CNC planer, plane grinder, cylindrical grinding device, and 3 coordinates tests machine.
Aside from, we have taken different steps to standardize the procedure flow this kind of as doing work and cooperating
with numerous scientific research units, faculties and universities at house and overseas. We also continuously try to
take in and boost the domestic advanced production systems, so as to market the upgrading and
optimization of the merchandise and make the solution high quality achieve the sophisticated amount at house and overseas.
ESR -sort Roots Blower contains a number of collection these kinds of as Three-leaves Sort, Two-leaves Variety and Centrifugal
Type,which can be more divided to hundreds of kinds. The merchandise are extensively used in sewage treatment method,
pneumatic conveying,vacuum packaging, aquaculture, foods processing, EPT energy, petrochemical, cement,
mining and other industries. Our merchandise have these kinds of benefits as lower sounds, power preserving, secure top quality,
and extended service lifestyle, etc.. With the product sales outlets throughout the domestic cash towns, our products market nicely all
in excess of the place, and have been exported to North America,Russia, Malaysia, Indonesia, Vietnam, South Africa
and some other nations. Getting obtained the ISO9001 Worldwide Quality Program Certification, we have
recognized and improved the top quality assurance of the merchandise designing, producing, and installation.
From the process of design and style, investigation and advancement to the finished goods, we have got the total
approach controlled independently, thus delivering the entire foundation and trustworthiness promise for the goods steadiness
and toughness. Having a perfect revenue network and right after-product sales services, we offer our customers with larger-
quality and much more efficient provider.All workers of our business sincerely welcome the broad masses of buddies to
information, and negotiate company with us.
Our Roots Blower Workshop
Doosn Horzitonal Equipment Middle
The Software of the Roots Blower
Maintenance and inspection
(1) Check all fasteners and locating pins situations no matter whether they are loosening.
(2) Usually examine no matter whether the leakage phenomenon of the entire body.
(3) Shell out interest to lubrication, amount of grease and noises when operating,
figure out no matter whether it works below the required problems.
(4) Lubricant & grease: The lubricant is for medium load industrial equipment oil
(grade 220, kinematic viscosity of 198 ~ 242mm2 / s 40ºC, flash point ≥ 200ºC)
The grease is butter (artificial lithium grease penetration 220-250, drop level ≥
190ºC). Replace the lubricant and grease following very first two hundred several hours operating, and exchange
again after a moth running. Later, change the lubricant and grease according to the
atmosphere and lubricant (grease) high quality suggest a ideal EPT for 3
months.
(5) Usually verify the inlet air filter, cleanse or change the filter in time.
(6) Blower overload often not immediately displayed, so shell out consideration to
the consumption and exhaust strain, bearing temperature and the current increase developments
of motor to determine no matter whether the blower operates usually
(seven) Before disassembling the blower, the assembling relation and dimensions
need to be recorded or calculated, make marks on parts to guarantee the authentic
specifications right after assembling.
(8) When freshly device or overhaul, the oil tank need to be cleaned just before use
and propose substitute all grease soon after 8 several hours running.
Widespread failure cause and troubleshooting
| No | Failure | Achievable factors | Elimination approaches |
| one | Friction amongst the impeller |
(1) Impurities on the impeller, resulting in the hole is too little (2) Gear put on, ensuing in a huge backlash (3) The gear is not effectively fixed, can not preserve the impeller synchronization (4) Bearing wear resulting in clearance escalating. |
(one) Take away dirt and check out regardless of whether there is damage areas (2) Modify the gear gap, exchange the gears if the gear backlash is greater than the average 30% to 50% (three)Re-assemble the gears, hold the taper make contact with region is to seventy five% (four)Exchange the bearing |
| 2 | Collision amongst impeller and wall, the impeller top and casing |
(1) Set up hole is not appropriate (2) working strain is as well substantial, exceeding the specified price (3) Running temperature is also high (four) Casing or base deformation, positioning enthusiast failure (five) Bearing axial location is not very good |
(one) Adjust the gap (2) Identify leads to of overloading, diminished the stress to the specified benefit (3) Verify the installation accuracy and reduce the pipe pressure (four) Examine and repair bearings, and to guarantee the clearance (five)Relocation |
| three | Temperature as well large |
(one) Oil in tank is as well a lot, too thick or too dirty (2) Filter or silencer is blocked (3)The pressure is increased than the specified benefit (four)Excessive use of the impeller, huge gap (five)Bad ventilation, indoor temperature is higher, resulting in inlet air’s large temperature (6) The rotating pace is too reduced,consequence in the belt slipping. |
(one)Decrease the oil amount or depend on oil (2)Get rid of of blocking objects (three)Lowering the pressure by way of the blower (four)Repair its clearance (five)Open up vents to decrease place temperature (6) Increase velocity to prevent the belt slipping. |
| four | Insufficient stream |
(1) The inlet filter is blocked (two) Impeller put on and the gap increases as well much (three) Belt slipping (four) Massive imports stress loss (5) Pipeline ventilation leakage |
(one) Clear the filter dust and obstruction (two) Repair the hole (three)Tighten the belt and improve the amount of belts (four)Adjust the inlet pressure to the specified price (5) Verify and restore the pipeline |
| 5 | Oil leaking or oil leaking into the enclosure |
(1)Large tank situation cause leakage from the discharge port (two) Seal dress in, resulting in shaft oil spills (three) The pressure is increased than the specified worth |
(1)Lessen the oil degree (two)Replace the seals (3)Clear the air vents, 2mm diameter faucet is fixed in the center chamber, open the faucet under the wall |
| six | Abnormal vibration and sounds |
(1)Bearing clearance exceeds the specified value or bearing put on (2) The gear backlash is also massive, not in a limited set (3) The international objects and dust triggered by the impeller and the impeller, the impeller and the housing collision (4) the impeller shaft deformation caused the collision brought on by overload, (5) Friction among the impeller and the inlet housing triggered by overheating (six) Unbalance of the impeller caused by fouling or foreign body (7) 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 circumstance is damaged (four)Check out the back again stress, check the wheel and alter gap (5)Check out the filter and back force, boost the gap between the impeller inlet and the casing (six)Cleanse the impeller and the casing, to make certain that the impeller clearance function (7) Tighten the anchor bolts and leveling the base. |
| 7 | Motor overload |
(one)In comparison with the essential strain, the strain distinction is massive that the back stress or the inlet force is high (2) Compared with the equipment requirements, blower stream is way too huge, so its force raises (3)Inlet filter is blocked, or outlet pipe is obstructed or blocked (4) Collusion or friction (trapped) rotating components (five) The oil degree is too higher (6) Slender V-belt is overheat, vibration is too large, or pulley is way too tiny |
(1) Minimize the strain to the specified price (two) Exhaust the excessive fuel into the atmosphere or minimize the blower pace (three) Get rid of the obstructions (4)Right away shut down, examine the reason (five) Change the oil to the correct amount (6) Check the belt rigidity, and replaced it with large diameter pulley. |
Our Service
one. Pre promote service 2. Soon after offer service
a. suggest the appropriate model c. on-line complex assistance,
b. manufacturing unit tour d. entire lifestyle spare areas and techinical help
Gurantee
12 months gurantee for our roots blowers
/ The use of unique equipment manufacturer’s (OEM) component quantities or trademarks , e.g. CASE® and John Deere® are for reference functions only and for indicating merchandise use and compatibility. Our company and the detailed EPT components contained herein are not sponsored, accepted, or created by the OEM. /
