We – EPG Team the greatest couplings and gears manufacturing unit in China with 5 distinct branches. For a lot more details: Mobile/whatsapp/telegram/Kakao us at: 0086-13083988828 /
We make all types of roots blower, centrifugal blower, Our Primary merchandise are as under:
Type | Diameter | Charge of flow | Strain |
ESR-MJ(Intense Sort) | Φ50~Φ300mm | .5~140m³/min | 9.8KPa~98.8Kpa |
ESR(Regular Variety) | Φ50~Φ350mm | .5~140m³/min | 9.8KPa~seventy eight.4Kpa |
ESR-H(High-stress Variety) | Φ50~Φ350mm | .seven~160m³/min | fifty eight.8KPa~ninety eight.8Kpa |
ESR-V(Vacuum Pump) | Φ50~Φ350mm | .five~160m³/min | 9.8KPa~53.3Kpa |
EL Sequence | 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 Sort | Φ250~Φ500mm | one hundred twenty~420m³/min | nine.8KPa~98.8Kpa |
The working basic principle 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 the two sides of the cavity. Through the action of a pair of
synchronous gears, the two rotors rotate in reverse instructions 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 attain the
purpose of blowing.
Attribute of our roots blower:
one. Large adjustment of the air quantity
two. Low Sounds
three. Large effectiveness
4. Minimal vitality cosumption
five. Long time daily life
six. Reliable operating, easy upkeep,small footprint
The parameters of our roots blower:
Kind | Ratary Pace (r/min) |
Stress Rise (Kpa) |
Capability (m/min) |
Shaft Electrical power (Kw) |
Motor | Device Maximn Weight(Kg) |
Power (Kw) |
||||||
ESR-fifty | 1100-2120 | nine.eight-58.8 | .sixty five-2.58 | .three-3.fifty four | .seventy five-four | 128-158 |
ESR-sixty five | 1100-2130 | 9.eight-58.eight | .ninety four-3.66 | .38-4.forty six | .seventy five-5.five | a hundred and fifty five-185 |
ESR-80 | 1140-1900 | nine.eight-fifty eight.8 | 2.34-five.43 | 1.04-seven.forty two | 2.2-11 | one hundred fifty five-277 |
ESR-100 | 1060-1980 | nine.8-fifty eight.eight | 4.57-nine.05 | one.35-12.15 | three-fifteen | 309-377 |
ESR-125 | 980-1850 | nine.eight-fifty eight.eight | 5.35-12.four | 1.sixty five-5.19 | 5.5-eighteen.5 | 408-451 |
ESR-125C | 970-1830 | nine.8-58.eight | 7.five-seventeen.fifty seven | three.2-18.five | 4-22 | 408-451 |
ESR-a hundred and fifty | 810-1730 | nine.eight-58.8 | ten.37-27.fifteen | three.eighty four-40.eighty two | 7.five-forty five | 688-848 |
ESR-one hundred seventy five | 970-1520 | nine.eight-fifty eight.8 | 19.65-36.65 | seven.2-forty five.95 | 11-55 | 980-1080 |
ESR-200B | 740-1450 | nine.8-58.eight | 19.65-forty four.8 | ten.fifteen-60.44 | fifteen-seventy five | 1272-1546 |
ESR-200 | 810-1480 | 9.8-fifty eight.eight | 27.sixty five-fifty nine.2 | 8.05-eighty,12 | fifteen-ninety | 1272-1546 |
ESR-250B | 1100-1480 | 9.8-58.8 | 54.seventy seven-77.fifty five | 19.ninety seven-90.ninety seven | 30-110 | 1490-2454 |
ESR-250 | 990-1480 | 9.eight-fifty eight.8 | 61.4-ninety seven.fifty two | 20.one-117.3 | 30-132 | 1490-2454 |
ESR-three hundred | 990-1480 | 9.eight-58.eight | 87.1-138.1 | 26.four-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 | 63.7-98 | .45-2.02 | 2.05-6.twelve | 3-7.five | 160–one hundred seventy |
ESR-65H | 1240-2130 | 63.7-ninety eight | .seventy eight-2.53 | 2.89-7.fifty five | four-eleven | 198-230 |
ESR-80H | 1140-1900 | sixty three.seven-98 | 1.eighty two-4.fifty five | four.09-10.1 | five.5-fifteen | 316-326 |
ESR-100H | 1060-1980 | 63.7-98 | 2.65-eight.06 | six.36-17.2 | 7.five-22 | 398-459 |
ESR-125H | 980-1850 | 63.7-98 | 4.64-eleven.23 | 8.92-24.2 | eleven-thirty | 544-630 |
ESR-150H | 810-1730 | sixty three.7-ninety eight | nine.53-25.76 | seventeen.sixteen-65 | 18.5-75 | 752-1571 |
ESR-200H | 810-1480 | sixty three.seven-ninety eight | 25.34-56.92 | 42.34-one hundred twenty | fifty five-132 | 1426-1934 |
ESR-250H | 990-1480 | sixty three.7-ninety eight | fifty eight-93.seven | 83.2-205 | ninety-220 | 2980-3468 |
ESR300H | 990-1480 | 63.7-98 | 86.nine-134.1 | 114.seven-270 | 132-280 | 3476-3998 |
ERF-245 | 650-980 | 9.eight-98 | forty seven.five-ninety seven.four | sixteen-183 | eighteen.five-two hundred | 3630-3690 |
ERF-250 | 650-980 | 9.eight-98 | 61.6-one hundred twenty.four | 19-227 | 22-250 | 4450-4500 |
ERF-290 | 650-980 | nine.eight-78.4 | 92.three-128 | 22-213 | 30-250 | 4890-4710 |
ERF-295 | 650-980 | nine.eight-78.four | ninety seven.three-152.five | 23-227 | 30-250 | 4890-4880 |
ERF-297 | 650-980 | nine.8-seventy eight.4 | 87.five-167.six | 26-249 | thirty-280 | 5330-5520 |
ERF-three hundred | 650-980 | nine.8-seventy eight.four | one zero one.five-188.7 | 29-278 | 37-315 | 5330-5520 |
ERF-350 | 650-980 | 9.8-seventy eight.4 | 126-224.nine | 34-249 | 45-280 | 5210-6470 |
ERG-300 | 590-730 | nine.8-ninety eight | 128.3-196 | 38-362 | 45-400 | 9440-15710 |
ERG-350 | 590-730 | 9.8-98 | 159.3-231.6 | forty three-420 | fifty five-450 | 9700-1571 |
ERG-four hundred | 590-730 | nine.8-83.3 | 203.1-290.9 | fifty two-449 | seventy five-500 | 10090-11390 |
ERG-445 | 590-730 | nine.eight-73.five | 229.7-327.8 | fifty eight-477 | seventy five-560 | 10600-12230 |
ERG-450 | 590-730 | 9.eight-seventy three.5 | 262.4-366.two | 64-496 | seventy five-560 | 10600-12230 |
ERG-500 | 590-730 | nine.8-63.seven | 327.four-452.4 | seventy eight-529 | 90-560 | 12790-14620 |
ERF-240-V | 650-980 | -9.8- -49 | 38.1-78 | 13-seventy six | eighteen.5-90 | 3420-3285 |
ERF-245-V | 650-980 | -nine.8- -49 | forty seven.5-ninety seven.four | 16-95 | 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- -forty nine | 72.six-144 | 22-136 | thirty-160 | 4415-4270 |
ERF-295-V | 650-980 | -9.eight- -49 | 76.six-152 | 23-145 | thirty-a hundred and sixty | 4425-4485 |
ERF-297-V | 650-980 | -nine.8- -forty nine | eighty four.3-166.eight | 26-a hundred and sixty | thirty-180 | 5000-4980 |
ERF-three hundred-V | 650-980 | -nine.eight- -forty nine | ninety seven-192 | 29-178 | 37-two hundred | 5000-4980 |
ERF-350-V | 650-980 | -nine.eight- -forty nine | 116-225 | 34-209 | 45-250 | 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- -forty nine | 199-290 | fifty two-269 | 75-315 | 9900-10130 |
ERG-445V | 590-730 | -9.eight- -49 | 224.eight-326.nine | fifty eight-303 | seventy five-355 | 9900-10130 |
ERG-450V | 590-730 | -nine.eight- -forty nine | 255-365 | 64-335 | seventy five-four hundred | 11230-11300 |
ERG-500V | 590-730 | -nine.eight- -forty nine | 314-452 | 78-412 | 132-450 | 13630-13850 |
ERF-245W | 650-980 | -13.three- -53.three | fifty three.five-a hundred and one | 21.5-102 | thirty-one hundred ten | 3630-3360 |
ERF-250W | 650-980 | -thirteen.3- -53.three | sixty nine-127 | 26.five-127 | thirty-a hundred and sixty | 3985-4115 |
ERF-290W | 650-980 | -13.3- -fifty three.three | eighty two.six-150 | thirty.5-149 | 37-185 | 4340-4580 |
ERF-295W | 650-980 | -13.3- -53.3 | 87-158 | 32-158 | 37-185 | 4440-4580 |
ERF-297W | 650-980 | -thirteen.3- -53.3 | 95-174 | 36-174 | forty five-two hundred | 5230-5130 |
ERF-300W | 650-980 | -thirteen.3- -53.three | 109-195 | 40-193 | fifty five-220 | 5230-5130 |
ERF-350W | 650-980 | -thirteen.three- -53.three | 129-230 | 50-230 | seventy five-250 | 5840-5670 |
ERG-300W | 590-730 | -thirteen.three- -53.3 | 142-197 | 52-201 | seventy five-220 | 9100-9000 |
ERF-350W | 590-730 | -13.three- -fifty three.three | 168-234.four | 59-235.five | seventy five-280 | 9500-9600 |
ERG-400W | 590-730 | -thirteen.three- -53.3 | 220-276.6 | 71-292 | ninety-315 | 9900-10130 |
ERG-445W | 590-730 | -13.three- -53.three | 244-294.6 | 82-331 | ninety-four hundred | 11230-11300 |
ERG450W | 590-730 | -13.three- -53.three | 275-368.5 | ninety one-366 | a hundred and ten-400 | 11230-11300 |
ETRF-250 (240,250) |
650-980 | ninety eight-196 | 64.8-112 | 135-355 | a hundred and sixty-400 | 8700-8600 |
ETRF-295 (245,295) |
650-980 | ninety eight-196 | 80.8-139 | 167-439 | 185-five hundred | 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-137.2 | 124-207 | 241-473 | 280-560 | 10700-11110 |
ETRG-four hundred (300,400) |
590-740 | ninety eight-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 | -53.3–80 | 72-121 | seventy five.six-121 | 90-a hundred and sixty | 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 | -fifty three.three–80 | 116-189 | a hundred and fifteen-220 | 132-250 | 7750-7760 |
EL81WD | 580-980 | nine.8-58.8 | 54.two-130 | 18-151 | 45-185 | 3595 |
EL82WDB | 580-980 | 9.eight-58.8 | 72.8-161 | 22-191 | 45-220 | 3860 |
EL83WDA | 580-980 | 9.8-fifty eight.9 | 101-213 | 28.5-202 | forty five-220 | 4300 |
EL84WDA | 580-980 | nine.8-58.eight | 129-267 | 35.4-252 | forty five-280 | 4720 |
EL93WDA | 580-730 | 9.8-49 | 230-329 | 56.4-311 | 75-355 | 7765 |
EL94WDA | 580-730 | 9.eight-49 | 263-373 | sixty four-353 | 75-400 | 8130 |
EL95WDA | 490-580 | nine.eight-fifty eight.8 | 308-434 | 81.4-414 | 90-450 | 11500 |
EL96WDA | 580 | fifty eight.eight | 381 | 497 | 560 | 11500 |
E397WN | a thousand-1650 | forty | 5-9 | |||
E408WN | 870-1650 | 40 | ten-22 | |||
E517WN | 980-1580 | forty | twenty-thirty | |||
E520WN | 930-1550 | forty | 24-45 | |||
E607WN | 750-1250 | 40 | forty five-seventy six | |||
E610WN | 750-1250 | 40 | seventy five-a hundred thirty |
Spare areas and composition of our roots compressor:
Bundle of our Roots Compressor
Pack into iron situation, two layer,blower body and motor in reduced layer, inlet/out silencer and so on in upper layer
Roots blower pack strategy exact same as iron case, just change to Fumigation Free of charge Plywood Situation
Our manufacturing unit is a professional company of Roots blowers which has above twenty 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
money— HangZhou. Our business also has handy site visitors transportation, as it is 15 kilometers away from
Diaozhen City station of HangZhou-HangZhou expressway, and 30 kilometers away from East HangZhou station of
ZheJiang -ZheJiang expressway.The leading solution of our firm is ESR -type Roots Blower. The roots
vacuum pump is a new variety of substantial-performance roots blower, which is developed independently based on the
domestic and overseas superior technologies. Many patented technologies have been adopted on Roots
Blower, and thus we have manufactured substantial effects in vitality conservation and noise reduction, etc.. So far, our
organization has invested more than 30,000,000 RMB to introduce this kind of sophisticated specialist products as
horizontal machining heart, vertical machining centre, two-way CNC area planer, CNC lathe, CNC milling
equipment, CNC planer, aircraft grinder, cylindrical grinding machine, and three coordinates screening equipment.
Aside from, we have taken numerous actions to standardize the approach stream these kinds of as working and cooperating
with many scientific research units, schools and universities at residence and overseas. We also constantly attempt to
take up and enhance the domestic advanced manufacturing technologies, so as to advertise the upgrading and
optimization of the item and make the merchandise quality reach the sophisticated amount at residence and overseas.
ESR -sort Roots Blower involves numerous collection this kind of as A few-leaves Sort, Two-leaves Kind and Centrifugal
Variety,which can be more divided to hundreds of varieties. The items are broadly utilized in sewage treatment,
pneumatic conveying,vacuum packaging, aquaculture, foods processing, EPT electricity, petrochemical, cement,
mining and other industries. Our items have these kinds of advantages as reduced sound, energy conserving, secure quality,
and lengthy support existence, etc.. With the product sales outlets throughout the domestic capital cities, our items offer properly all
in excess of the nation, and have been exported to North The usa,Russia, Malaysia, Indonesia, Vietnam, South Africa
and some other countries. Getting obtained the ISO9001 Global Good quality Technique Certification, we have
proven and improved the top quality assurance of the goods creating, producing, and set up.
From the approach of layout, research and improvement to the completed goods, we have got the whole
method controlled independently, as a result delivering the total basis and dependability promise for the merchandise balance
and toughness. Obtaining a perfect income network and following-product sales services, we provide our clients with increased-
quality and more effective service.All workers of our company sincerely welcome the wide masses of friends to
information, and negotiate organization with us.
Our Roots Blower Workshop
Doosn Horzitonal Device Heart
The Application of the Roots Blower
Servicing and inspection
(1) Verify all fasteners and finding pins problems no matter whether they are loosening.
(two) Often check whether the leakage phenomenon of the physique.
(3) Pay out interest to lubrication, quantity of grease and noises when managing,
figure out no matter whether it operates underneath the required problems.
(4) Lubricant & grease: The lubricant is for medium load industrial equipment 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 after very first 200 hours working, and replace
once more soon after a moth managing. Afterwards, substitute the lubricant and grease in accordance to the
environment and lubricant (grease) high quality suggest a appropriate EPT for 3
months.
(5) Constantly check the inlet air filter, thoroughly clean or replace the filter in time.
(six) Blower overload often not immediately exhibited, so pay attention to
the intake and exhaust strain, bearing temperature and the existing boost developments
of motor to determine whether or not the blower works usually
(7) Just before disassembling the blower, the assembling relation and dimensions
must be recorded or calculated, make marks on parts to make sure the first
requirements soon after assembling.
(8) When freshly device or overhaul, the oil tank ought to be cleaned ahead of use
and suggest substitute all grease after 8 several hours working.
Widespread failure cause and troubleshooting
No | Failure | Possible factors | Elimination approaches |
one | Friction among the impeller |
(one) Impurities on the impeller, resulting in the hole is too tiny (two) Gear put on, ensuing in a big backlash (three) The gear is not properly fixed, can not keep the impeller synchronization (4) Bearing wear resulting in clearance increasing. |
(one) Remove filth and verify whether there is damage components (2) Alter the gear hole, change the gears if the gear backlash is increased than the typical 30% to fifty% (3)Re-assemble the gears, preserve the taper get in touch with location is to 75% (four)Change the bearing |
2 | Collision between impeller and wall, the impeller prime and casing |
(one) Installation hole is not appropriate (2) functioning strain is also higher, exceeding the specified worth (three) Running temperature is too higher (four) Casing or base deformation, positioning enthusiast failure (5) Bearing axial location is not excellent |
(1) Modify the hole (two) Discover triggers of overloading, lowered the stress to the specified value (three) Examine the installation accuracy and minimize the pipe stress (4) Check out and restore bearings, and to guarantee the clearance (5)Relocation |
three | Temperature as well large |
(1) Oil in tank is way too much, way too thick or way too dirty (2) Filter or silencer is blocked (three)The stress is increased than the specified price (4)Too much put on of the impeller, huge hole (5)Inadequate air flow, indoor temperature is substantial, ensuing in inlet air’s large temperature (6) The rotating speed is way too minimal,result in the belt slipping. |
(1)Minimize the oil degree or rely on oil (2)Get rid of of blocking objects (3)Decreasing the force via the blower (4)Fix its clearance (5)Open up vents to lessen place temperature (6) Boost pace to avert the belt slipping. |
4 | Insufficient flow |
(1) The inlet filter is blocked (two) Impeller use and the gap will increase too a lot (three) Belt slipping (four) Large imports stress reduction (5) Pipeline air flow leakage |
(1) Clear the filter dust and obstruction (two) Restore the hole (three)Tighten the belt and improve the variety of belts (4)Modify the inlet pressure to the specified benefit (five) Verify and mend the pipeline |
five | Oil leaking or oil leaking into the enclosure |
(one)Large tank place cause leakage from the discharge port (2) Seal use, resulting in shaft oil spills (three) The pressure is greater than the specified value |
(one)Decrease the oil stage (2)Change the seals (3)Very clear the air vents, 2mm diameter faucet is set in the middle chamber, open the faucet underneath the wall |
six | Irregular vibration and sounds |
(one)Bearing clearance exceeds the specified price or bearing dress in (2) The gear backlash is too big, not in a tight fastened (three) The overseas objects and dust brought on by the impeller and the impeller, the impeller and the housing collision (4) the impeller shaft deformation triggered the collision triggered by overload, (five) Friction in between the impeller and the inlet housing induced by overheating (6) Unbalance of the impeller induced by fouling or international body (7) Anchor bolts or other fasteners are loosened |
(one)Substitute bearings or bearing seat (2)Reassemble equipment and make certain backlash (3)Cleansing blower, check the circumstance is ruined (4)Examine the back again pressure, check the wheel and modify hole (5)Examine the filter and again force, boost the gap in between the impeller inlet and the casing (6)Thoroughly clean the impeller and the casing, to make certain that the impeller clearance perform (7) Tighten the anchor bolts and leveling the foundation. |
7 | Motor overload |
(1)In contrast with the necessary stress, the strain big difference is big that the back force or the inlet strain is substantial (2) Compared with the equipment specifications, blower circulation is also big, so its force raises (three)Inlet filter is blocked, or outlet pipe is obstructed or blocked (4) Collusion or friction (trapped) rotating components (five) The oil amount is too substantial (6) Slim V-belt is overheat, vibration is as well massive, or pulley is way too little |
(1) Reduce the force to the specified price (two) Exhaust the excess gasoline into the atmosphere or lessen the blower speed (3) Get rid of the obstructions (4)Quickly shut down, check the cause (5) Alter the oil to the correct stage (six) Examine the belt pressure, and changed it with big diameter pulley. |
Our Provider
one. Pre sell service 2. After promote service
a. suggest the suitable model c. on the web specialized assistance,
b. manufacturing facility tour d. entire lifestyle spare areas and techinical support
Gurantee
12 months gurantee for our roots blowers
/ The use of authentic equipment manufacturer’s (OEM) part quantities or logos , e.g. CASE® and John Deere® are for reference functions only and for indicating solution use and compatibility. Our firm and the listed EPT areas contained herein are not sponsored, accredited, or produced by the OEM. /