We – EPG Team the largest couplings and gears manufacturing unit in China with five various branches. For a lot more particulars: Cell/whatsapp/telegram/Kakao us at: 0086-13083988828 /
We make all types of roots blower, centrifugal blower, Our Main merchandise are as below:
Variety | Diameter | Rate of circulation | Force |
ESR-MJ(Intensive Variety) | Φ50~Φ300mm | .five~140m³/min | 9.8KPa~98.8Kpa |
ESR(Common Variety) | Φ50~Φ350mm | .five~140m³/min | 9.8KPa~78.4Kpa |
ESR-H(High-stress Kind) | Φ50~Φ350mm | .7~160m³/min | fifty eight.8KPa~98.8Kpa |
ESR-V(Vacuum Pump) | Φ50~Φ350mm | .5~160m³/min | 9.8KPa~53.3Kpa |
EL Collection | Φ200~Φ600mm | twenty.3~750m³/min | 9.8KPa~fifty eight.8Kpa |
Multistage Centrifugal Blower or C-Sequence |
Φ250~Φ500mm | 50~500m³/min | nine.8KPa~98Kpa |
ERR-ERG Type | Φ250~Φ500mm | one hundred twenty~420m³/min | nine.8KPa~ninety eight.8Kpa |
The operating basic principle of the three-blade roots blower: two three-lobed rotors are arranged in the cavity, and the
suction port and the discharge port are opened on both sides of the cavity. By means of 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 achieve the
purpose of blowing.
Function of our roots blower:
1. Huge adjustment of the air volume
2. Minimal Noise
three. Large performance
4. Reduced power cosumption
5. Extended time existence
6. Reliable running, simple routine maintenance,little footprint
The parameters of our roots blower:
Type | Ratary Velocity (r/min) |
Stress Rise (Kpa) |
Potential (m/min) |
Shaft Power (Kw) |
Motor | Unit Maximn Bodyweight(Kg) |
Power (Kw) |
||||||
ESR-fifty | 1100-2120 | nine.eight-58.8 | .65-two.58 | .three-three.54 | .seventy five-4 | 128-158 |
ESR-sixty five | 1100-2130 | 9.8-58.eight | .ninety four-three.66 | .38-four.forty six | .75-five.five | 155-185 |
ESR-eighty | 1140-1900 | 9.8-58.eight | two.34-five.forty three | 1.04-seven.42 | 2.two-11 | 155-277 |
ESR-100 | 1060-1980 | 9.8-fifty eight.8 | 4.fifty seven-9.05 | 1.35-12.15 | 3-15 | 309-377 |
ESR-one hundred twenty five | 980-1850 | nine.eight-fifty eight.8 | 5.35-twelve.four | 1.sixty five-five.19 | 5.5-18.5 | 408-451 |
ESR-125C | 970-1830 | nine.eight-fifty eight.eight | seven.five-17.fifty seven | 3.two-eighteen.five | four-22 | 408-451 |
ESR-150 | 810-1730 | 9.eight-58.8 | 10.37-27.15 | 3.eighty four-forty.eighty two | 7.5-45 | 688-848 |
ESR-one hundred seventy five | 970-1520 | nine.eight-fifty eight.eight | 19.65-36.sixty five | 7.2-45.ninety five | eleven-fifty five | 980-1080 |
ESR-200B | 740-1450 | 9.eight-58.eight | 19.65-44.eight | 10.15-sixty.forty four | fifteen-seventy five | 1272-1546 |
ESR-200 | 810-1480 | nine.eight-58.eight | 27.65-fifty nine.2 | 8.05-80,12 | fifteen-90 | 1272-1546 |
ESR-250B | 1100-1480 | nine.8-fifty eight.8 | fifty four.seventy seven-seventy seven.fifty five | 19.97-ninety.97 | 30-110 | 1490-2454 |
ESR-250 | 990-1480 | 9.eight-58.8 | sixty one.four-97.fifty two | twenty.one-117.3 | thirty-132 | 1490-2454 |
ESR-three hundred | 990-1480 | 9.eight-fifty eight.8 | 87.1-138.one | 26.four-167.eight | 37-185 | 3326-3446 |
ESR-350 | 730-1480 | nine.8-fifty eight.eight | 78.forty one-177.31 | 55-250 | ||
ESR-50H | 1230-2120 | 63.7-ninety eight | .forty five-2.02 | two.05-six.twelve | 3-seven.five | 160–one hundred seventy |
ESR-65H | 1240-2130 | 63.7-98 | .78-two.53 | two.89-seven.55 | 4-eleven | 198-230 |
ESR-80H | 1140-1900 | sixty three.seven-98 | 1.82-4.55 | four.09-ten.one | five.five-fifteen | 316-326 |
ESR-100H | 1060-1980 | 63.seven-98 | two.sixty five-8.06 | six.36-17.two | seven.5-22 | 398-459 |
ESR-125H | 980-1850 | sixty three.7-98 | four.64-11.23 | 8.92-24.two | eleven-30 | 544-630 |
ESR-150H | 810-1730 | sixty three.7-ninety eight | nine.fifty three-twenty five.seventy six | 17.16-sixty five | 18.5-75 | 752-1571 |
ESR-200H | 810-1480 | sixty three.seven-ninety eight | 25.34-56.ninety two | forty two.34-one hundred twenty | fifty five-132 | 1426-1934 |
ESR-250H | 990-1480 | sixty three.7-98 | 58-93.7 | 83.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 | 9.8-98 | forty seven.five-97.4 | sixteen-183 | 18.5-200 | 3630-3690 |
ERF-250 | 650-980 | nine.8-98 | 61.6-a hundred and twenty.4 | 19-227 | 22-250 | 4450-4500 |
ERF-290 | 650-980 | nine.8-78.4 | ninety two.3-128 | 22-213 | thirty-250 | 4890-4710 |
ERF-295 | 650-980 | 9.eight-seventy eight.four | 97.three-152.5 | 23-227 | 30-250 | 4890-4880 |
ERF-297 | 650-980 | 9.eight-seventy eight.four | 87.five-167.6 | 26-249 | thirty-280 | 5330-5520 |
ERF-three hundred | 650-980 | nine.8-78.four | 101.five-188.7 | 29-278 | 37-315 | 5330-5520 |
ERF-350 | 650-980 | nine.eight-78.four | 126-224.nine | 34-249 | 45-280 | 5210-6470 |
ERG-three hundred | 590-730 | 9.8-98 | 128.3-196 | 38-362 | 45-four hundred | 9440-15710 |
ERG-350 | 590-730 | 9.eight-98 | 159.three-231.6 | 43-420 | fifty five-450 | 9700-1571 |
ERG-400 | 590-730 | 9.8-eighty three.3 | 203.one-290.9 | fifty two-449 | 75-five hundred | 10090-11390 |
ERG-445 | 590-730 | 9.8-seventy three.5 | 229.7-327.eight | fifty eight-477 | 75-560 | 10600-12230 |
ERG-450 | 590-730 | nine.8-seventy three.five | 262.4-366.2 | sixty four-496 | seventy five-560 | 10600-12230 |
ERG-five hundred | 590-730 | nine.8-sixty three.7 | 327.four-452.4 | 78-529 | ninety-560 | 12790-14620 |
ERF-240-V | 650-980 | -9.8- -forty nine | 38.one-78 | thirteen-seventy six | eighteen.five-ninety | 3420-3285 |
ERF-245-V | 650-980 | -nine.eight- -forty nine | forty seven.five-ninety seven.4 | sixteen-95 | 22-110 | 3425-3360 |
ERF-250-V | 650-980 | -9.eight- -49 | sixty three-one hundred twenty | 19-117 | 22-132 | 3910-3830 |
ERF-290-V | 650-980 | -nine.8- -forty nine | 72.6-144 | 22-136 | thirty-a hundred and sixty | 4415-4270 |
ERF-295-V | 650-980 | -nine.eight- -49 | 76.6-152 | 23-145 | 30-one hundred sixty | 4425-4485 |
ERF-297-V | 650-980 | -nine.eight- -49 | eighty four.three-166.8 | 26-one hundred sixty | 30-180 | 5000-4980 |
ERF-300-V | 650-980 | -nine.eight- -49 | ninety seven-192 | 29-178 | 37-200 | 5000-4980 |
ERF-350-V | 650-980 | -nine.8- -49 | 116-225 | 34-209 | forty five-250 | 5400-5700 |
ERG-300V | 590-730 | -9.8- -forty nine | 133-193 | 38-184 | 45-220 | 7800-9100 |
ERG-350V | 590-730 | -9.eight- -forty nine | 163-231 | 43-216 | fifty five-250 | 9500-9470 |
ERG-400V | 590-730 | -nine.8- -forty nine | 199-290 | 52-269 | seventy five-315 | 9900-10130 |
ERG-445V | 590-730 | -9.8- -forty nine | 224.8-326.nine | fifty eight-303 | 75-355 | 9900-10130 |
ERG-450V | 590-730 | -9.eight- -49 | 255-365 | sixty four-335 | 75-400 | 11230-11300 |
ERG-500V | 590-730 | -9.8- -49 | 314-452 | seventy eight-412 | 132-450 | 13630-13850 |
ERF-245W | 650-980 | -13.three- -53.three | fifty three.5-one hundred and one | 21.five-102 | 30-a hundred and ten | 3630-3360 |
ERF-250W | 650-980 | -thirteen.3- -53.3 | sixty nine-127 | 26.five-127 | 30-160 | 3985-4115 |
ERF-290W | 650-980 | -thirteen.three- -53.three | eighty two.6-150 | thirty.5-149 | 37-185 | 4340-4580 |
ERF-295W | 650-980 | -thirteen.three- -fifty three.3 | 87-158 | 32-158 | 37-185 | 4440-4580 |
ERF-297W | 650-980 | -13.3- -53.3 | 95-174 | 36-174 | forty five-200 | 5230-5130 |
ERF-300W | 650-980 | -thirteen.three- -fifty three.3 | 109-195 | 40-193 | 55-220 | 5230-5130 |
ERF-350W | 650-980 | -13.3- -53.3 | 129-230 | fifty-230 | seventy five-250 | 5840-5670 |
ERG-300W | 590-730 | -13.three- -53.three | 142-197 | 52-201 | 75-220 | 9100-9000 |
ERF-350W | 590-730 | -thirteen.three- -fifty three.3 | 168-234.four | 59-235.5 | seventy five-280 | 9500-9600 |
ERG-400W | 590-730 | -thirteen.3- -fifty three.three | 220-276.6 | seventy one-292 | 90-315 | 9900-10130 |
ERG-445W | 590-730 | -13.three- -53.3 | 244-294.6 | 82-331 | 90-four hundred | 11230-11300 |
ERG450W | 590-730 | -thirteen.three- -fifty three.3 | 275-368.5 | 91-366 | a hundred and ten-four hundred | 11230-11300 |
ETRF-250 (240,250) |
650-980 | ninety eight-196 | sixty four.8-112 | a hundred thirty five-355 | a hundred and sixty-four hundred | 8700-8600 |
ETRF-295 (245,295) |
650-980 | ninety eight-196 | 80.eight-139 | 167-439 | 185-500 | 9200-9100 |
ETRF-300 (245,295) |
650-980 | 98-176.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 (three hundred,four hundred) |
590-740 | 98-176.4 | 205-273 | 380-773 | 450-900 | 21350-24200 |
ETRG-450 (350,450) |
590-740 | ninety eight-176.four | 263-428 | 476-955 | 560-a thousand | 24200-27600 |
ETRF-250W (240,250) |
650-980 | -53.3–eighty | 72-121 | 75.6-121 | 90-160 | 6100-6470 |
ETRF-295W (245/295) |
650-980 | -fifty three.three–eighty | ninety three.eight-154 | ninety nine.5-186 | one hundred ten-220 | 7000-6400 |
ETRF-300W (2505/three hundred) |
650-980 | -fifty three.three–eighty | 116-189 | a hundred and fifteen-220 | 132-250 | 7750-7760 |
EL81WD | 580-980 | 9.eight-fifty eight.8 | fifty four.two-a hundred thirty | eighteen-151 | forty five-185 | 3595 |
EL82WDB | 580-980 | 9.8-fifty eight.8 | 72.8-161 | 22-191 | forty five-220 | 3860 |
EL83WDA | 580-980 | 9.eight-fifty eight.nine | 101-213 | 28.5-202 | forty five-220 | 4300 |
EL84WDA | 580-980 | nine.eight-58.eight | 129-267 | 35.4-252 | forty five-280 | 4720 |
EL93WDA | 580-730 | nine.eight-forty nine | 230-329 | 56.4-311 | 75-355 | 7765 |
EL94WDA | 580-730 | 9.eight-49 | 263-373 | 64-353 | seventy five-four hundred | 8130 |
EL95WDA | 490-580 | 9.eight-58.eight | 308-434 | eighty one.four-414 | 90-450 | 11500 |
EL96WDA | 580 | 58.8 | 381 | 497 | 560 | 11500 |
E397WN | a thousand-1650 | forty | 5-nine | |||
E408WN | 870-1650 | forty | 10-22 | |||
E517WN | 980-1580 | forty | twenty-30 | |||
E520WN | 930-1550 | forty | 24-45 | |||
E607WN | 750-1250 | forty | forty five-76 | |||
E610WN | 750-1250 | forty | 75-one hundred thirty |
Spare areas and composition of our roots blower:
Package of our Roots Blower
Pack into iron situation, two layer,blower physique and motor in lower layer, inlet/out silencer and many others in upper layer
Roots blower pack approach same as iron circumstance, just alter to Fumigation Free Plywood Situation
Our manufacturing unit is a professional producer of Roots blowers which has over 20 years’ experience in equipment
manufacturing. It is found in Xihu (West Lake) Dis. East Industrial Park, 50 kilometers to the east of Shan EPT provincial
cash— HangZhou. Our organization also has handy traffic transportation, as it is fifteen kilometers absent from
Diaozhen Town station of HangZhou-HangZhou expressway, and thirty kilometers away from East HangZhou station of
ZheJiang -ZheJiang expressway.The foremost merchandise of our company is ESR -kind Roots Blower. The roots
vacuum pump is a new type of higher-effectiveness roots blower, which is developed independently dependent on the
domestic and overseas innovative technologies. Several patented technologies have been adopted on Roots
Blower, and hence we have created considerable outcomes in power conservation and noise reduction, etc.. So significantly, our
organization has invested a lot more than 30,000,000 RMB to introduce such innovative skilled tools as
horizontal machining centre, vertical machining middle, two-way CNC floor planer, CNC lathe, CNC milling
machine, CNC planer, airplane grinder, cylindrical grinding machine, and three coordinates testing machine.
Apart from, we have taken a variety of actions to standardize the approach flow this kind of as working and cooperating
with several scientific research units, faculties and universities at house and abroad. We also continuously try out to
soak up and increase the domestic sophisticated creation technologies, so as to market the upgrading and
optimization of the merchandise and make the item good quality get to the superior degree at home and overseas.
ESR -sort Roots Blower consists of a number of sequence this sort of as 3-leaves Variety, Two-leaves Sort and Centrifugal
Variety,which can be further divided to hundreds of varieties. The items are extensively utilized in sewage treatment,
pneumatic conveying,vacuum packaging, aquaculture, meals processing, EPT electrical power, petrochemical, cement,
mining and other industries. Our products have this sort of benefits as reduced sound, strength preserving, steady top quality,
and lengthy services life, and so forth.. With the revenue outlets throughout the domestic funds metropolitan areas, our products promote properly all
over the region, and have been exported to North The united states,Russia, Malaysia, Indonesia, Vietnam, South Africa
and some other international locations. Getting obtained the ISO9001 Intercontinental High quality Program Certification, we have
established and improved the high quality assurance of the merchandise developing, production, and set up.
From the procedure of style, investigation and development to the finished goods, we have acquired the total
approach controlled independently, as a result offering the full foundation and trustworthiness ensure for the goods security
and longevity. Having a perfect revenue network and after-sales support, we provide our customers with greater-
top quality and much more successful support.All employees of our firm sincerely welcome the broad masses of close friends to
guide, and negotiate enterprise with us.
Our Roots Blower Workshop
Doosn Horzitonal Device Heart
The Application of the Roots Blower
Servicing and inspection
(one) Check all fasteners and finding pins problems no matter whether they are loosening.
(2) Usually check regardless of whether the leakage phenomenon of the entire body.
(3) Spend attention to lubrication, quantity of grease and noises when running,
decide whether or not it works under the essential problems.
(4) Lubricant & grease: The lubricant is for medium load industrial equipment oil
(quality 220, kinematic viscosity of 198 ~ 242mm2 / s 40ºC, flash position ≥ 200ºC)
The grease is butter (synthetic lithium grease penetration 220-250, drop level ≥
190ºC). Substitute the lubricant and grease right after very first 200 hrs operating, and change
again following a moth working. Later on, replace the lubricant and grease according to the
environment and lubricant (grease) high quality suggest a suited EPT for a few
months.
(five) Often verify the inlet air filter, clear or exchange the filter in time.
(6) Blower overload at times not quickly exhibited, so shell out interest to
the consumption and exhaust stress, bearing temperature and the present boost trends
of motor to decide no matter whether the blower functions usually
(seven) Before disassembling the blower, the assembling relation and dimensions
have to be recorded or measured, make marks on parts to make sure the unique
needs right after assembling.
(8) When recently machine or overhaul, the oil tank must be cleaned ahead of use
and suggest substitute all grease right after eight hours working.
Common failure explanation and troubleshooting
No | Failure | Possible causes | Elimination strategies |
1 | Friction among the impeller |
(one) Impurities on the impeller, ensuing in the hole is as well little (2) Gear put on, resulting in a huge backlash (three) The equipment is not properly fixed, can not preserve the impeller synchronization (four) Bearing use resulting in clearance rising. |
(one) Remove dirt and examine whether or not there is injury areas (2) Adjust the gear gap, substitute the gears if the equipment backlash is increased than the average 30% to 50% (three)Re-assemble the gears, preserve the taper speak to location is to seventy five% (four)Change the bearing |
2 | Collision among impeller and wall, the impeller top and casing |
(one) Set up gap is not proper (2) functioning strain is way too large, exceeding the specified value (three) Running temperature is way too large (four) Casing or base deformation, positioning enthusiast failure (five) Bearing axial location is not very good |
(1) Modify the gap (2) Discover leads to of overloading, lowered the strain to the specified benefit (three) Check out the set up precision and minimize the pipe pressure (4) Check and mend bearings, and to guarantee the clearance (5)Relocation |
3 | Temperature as well substantial |
(one) Oil in tank is also considerably, way too thick or too soiled (2) Filter or silencer is blocked (3)The stress is larger than the specified value (four)Excessive dress in of the impeller, huge hole (five)Inadequate air flow, indoor temperature is substantial, resulting in inlet air’s substantial temperature (6) The rotating pace is as well reduced,end result in the belt slipping. |
(one)Minimize the oil degree or rely on oil (two)Take away of blocking objects (3)Minimizing the stress via the blower (four)Restore its clearance (five)Open up vents to minimize place temperature (six) Enhance pace to stop the belt slipping. |
four | Inadequate stream |
(1) The inlet filter is blocked (two) Impeller use and the hole boosts as well considerably (three) Belt slipping (four) Huge imports force loss (5) Pipeline air flow leakage |
(1) Clear the filter dust and obstruction (2) Repair the gap (three)Tighten the belt and increase the amount of belts (four)Modify the inlet force to the specified price (five) Check out and fix the pipeline |
5 | Oil leaking or oil leaking into the enclosure |
(1)High tank situation trigger leakage from the discharge port (2) Seal put on, resulting in shaft oil spills (3) The strain is increased than the specified worth |
(one)Minimize the oil stage (two)Change the seals (three)Very clear the air vents, 2mm diameter faucet is fixed in the center chamber, open the faucet below the wall |
six | Irregular vibration and sound |
(one)Bearing clearance exceeds the specified price or bearing dress in (two) The equipment backlash is too huge, not in a limited set (three) The overseas objects and dust brought on by the impeller and the impeller, the impeller and the housing collision (four) the impeller shaft deformation caused the collision caused by overload, (five) Friction among the impeller and the inlet housing triggered by overheating (six) Unbalance of the impeller brought on by fouling or foreign physique (seven) Anchor bolts or other fasteners are loosened |
(1)Replace bearings or bearing seat (2)Reassemble gear and guarantee backlash (three)Cleaning blower, examine the case is broken (4)Check the back force, verify the wheel and modify hole (five)Check out the filter and back again pressure, enhance the gap amongst the impeller inlet and the casing (6)Clean the impeller and the casing, to guarantee that the impeller clearance perform (7) Tighten the anchor bolts and leveling the base. |
seven | Motor overload |
(one)When compared with the required stress, the stress big difference is large that the back force or the inlet strain is substantial (two) In contrast with the tools requirements, blower circulation is way too huge, so its strain raises (3)Inlet filter is blocked, or outlet pipe is obstructed or blocked (4) Collusion or friction (caught) rotating areas (five) The oil degree is also high (six) Narrow V-belt is overheat, vibration is way too large, or pulley is also little |
(one) Decrease the strain to the specified benefit (two) Exhaust the excess gas into the atmosphere or minimize the blower pace (three) Take away the obstructions (4)Right away shut down, check out the cause (5) Adjust the oil to the right stage (6) Check the belt stress, and replaced it with big diameter pulley. |
Our Services
1. Pre market service two. Following promote service
a. advocate the suitable model c. on the web technical support,
b. manufacturing facility tour d. total life spare elements and techinical support
Gurantee
12 months gurantee for our roots blowers
/ The use of original gear manufacturer’s (OEM) portion figures or emblems , e.g. CASE® and John Deere® are for reference reasons only and for indicating item use and compatibility. Our business and the listed EPT areas contained herein are not sponsored, accepted, or created by the OEM. /