We – EPG Group the biggest couplings and gears manufacturing facility in China with 5 distinct branches. For far more details: Cellular/whatsapp/telegram/Kakao us at: 0086-13083988828 /
We make all sorts of roots blower, centrifugal blower, Our Primary goods are as under:
Kind | Diameter | Fee of stream | Strain |
ESR-MJ(Intense Type) | Φ50~Φ300mm | .five~140m³/min | nine.8KPa~98.8Kpa |
ESR(Common Sort) | Φ50~Φ350mm | .5~140m³/min | 9.8KPa~seventy eight.4Kpa |
ESR-H(High-force Sort) | Φ50~Φ350mm | .seven~160m³/min | fifty eight.8KPa~98.8Kpa |
ESR-V(Vacuum Pump) | Φ50~Φ350mm | .five~160m³/min | 9.8KPa~53.3Kpa |
EL Series | Φ200~Φ600mm | twenty.three~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 | 120~420m³/min | nine.8KPa~98.8Kpa |
The operating principle of the 3-blade roots blower: two a few-lobed rotors are arranged in the cavity, and the
suction port and the discharge port are opened on each 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 attain the
function of blowing.
Function of our roots blower:
1. Huge adjustment of the air quantity
2. Lower Sounds
three. Substantial effectiveness
4. Lower power cosumption
5. Prolonged time lifestyle
six. Dependable operating, simple routine maintenance,little footprint
The parameters of our roots blower:
Variety | Ratary Velocity (r/min) |
Pressure Rise (Kpa) |
Capability (m/min) |
Shaft Electricity (Kw) |
Motor | Unit Maximn Weight(Kg) |
Electricity (Kw) |
||||||
ESR-50 | 1100-2120 | 9.eight-fifty eight.8 | .sixty five-two.fifty eight | .3-three.fifty four | .75-four | 128-158 |
ESR-65 | 1100-2130 | nine.eight-58.8 | .94-3.sixty six | .38-4.forty six | .75-5.5 | a hundred and fifty five-185 |
ESR-80 | 1140-1900 | nine.eight-58.eight | two.34-5.forty three | 1.04-7.42 | 2.2-11 | 155-277 |
ESR-100 | 1060-1980 | 9.eight-58.8 | four.fifty seven-9.05 | one.35-twelve.15 | 3-fifteen | 309-377 |
ESR-a hundred twenty five | 980-1850 | 9.8-58.8 | 5.35-12.four | one.65-5.19 | five.5-eighteen.5 | 408-451 |
ESR-125C | 970-1830 | nine.8-58.8 | 7.5-17.fifty seven | 3.2-eighteen.5 | four-22 | 408-451 |
ESR-a hundred and fifty | 810-1730 | 9.8-58.8 | 10.37-27.fifteen | three.84-40.eighty two | 7.5-45 | 688-848 |
ESR-a hundred seventy five | 970-1520 | nine.8-fifty eight.eight | 19.sixty five-36.65 | 7.two-45.ninety five | eleven-fifty five | 980-1080 |
ESR-200B | 740-1450 | 9.eight-58.eight | 19.sixty five-forty four.8 | ten.15-sixty.44 | fifteen-seventy five | 1272-1546 |
ESR-two hundred | 810-1480 | 9.eight-58.8 | 27.sixty five-fifty nine.2 | eight.05-eighty,twelve | fifteen-90 | 1272-1546 |
ESR-250B | 1100-1480 | nine.8-58.eight | fifty four.seventy seven-77.55 | 19.ninety seven-90.97 | thirty-a hundred and ten | 1490-2454 |
ESR-250 | 990-1480 | 9.eight-58.eight | sixty one.four-ninety seven.52 | 20.one-117.3 | thirty-132 | 1490-2454 |
ESR-300 | 990-1480 | nine.eight-fifty eight.8 | 87.one-138.1 | 26.4-167.eight | 37-185 | 3326-3446 |
ESR-350 | 730-1480 | 9.8-fifty eight.eight | 78.forty one-177.31 | 55-250 | ||
ESR-50H | 1230-2120 | sixty three.seven-98 | .45-2.02 | two.05-six.twelve | 3-7.5 | 160–one hundred seventy |
ESR-65H | 1240-2130 | sixty three.seven-98 | .78-two.fifty three | 2.89-7.fifty five | four-11 | 198-230 |
ESR-80H | 1140-1900 | 63.seven-ninety eight | one.82-four.fifty five | four.09-ten.1 | five.5-fifteen | 316-326 |
ESR-100H | 1060-1980 | sixty three.seven-98 | two.sixty five-eight.06 | six.36-seventeen.two | seven.five-22 | 398-459 |
ESR-125H | 980-1850 | 63.7-ninety eight | 4.64-11.23 | eight.ninety two-24.two | eleven-30 | 544-630 |
ESR-150H | 810-1730 | sixty three.7-ninety eight | 9.53-25.seventy six | seventeen.sixteen-65 | 18.five-seventy five | 752-1571 |
ESR-200H | 810-1480 | 63.7-ninety eight | twenty five.34-56.ninety two | 42.34-120 | fifty five-132 | 1426-1934 |
ESR-250H | 990-1480 | 63.seven-ninety eight | 58-ninety three.seven | eighty three.2-205 | 90-220 | 2980-3468 |
ESR300H | 990-1480 | 63.seven-ninety eight | 86.nine-134.1 | 114.7-270 | 132-280 | 3476-3998 |
ERF-245 | 650-980 | 9.eight-98 | forty seven.five-ninety seven.4 | sixteen-183 | 18.5-200 | 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 | nine.eight-78.four | ninety two.three-128 | 22-213 | thirty-250 | 4890-4710 |
ERF-295 | 650-980 | 9.8-seventy eight.four | ninety seven.3-152.5 | 23-227 | 30-250 | 4890-4880 |
ERF-297 | 650-980 | 9.8-seventy eight.four | 87.five-167.6 | 26-249 | thirty-280 | 5330-5520 |
ERF-three hundred | 650-980 | 9.8-78.4 | one zero one.5-188.7 | 29-278 | 37-315 | 5330-5520 |
ERF-350 | 650-980 | nine.eight-seventy eight.four | 126-224.9 | 34-249 | 45-280 | 5210-6470 |
ERG-300 | 590-730 | nine.eight-98 | 128.3-196 | 38-362 | 45-400 | 9440-15710 |
ERG-350 | 590-730 | 9.8-ninety eight | 159.three-231.6 | forty three-420 | fifty five-450 | 9700-1571 |
ERG-400 | 590-730 | 9.8-83.three | 203.1-290.nine | 52-449 | 75-five hundred | 10090-11390 |
ERG-445 | 590-730 | 9.eight-73.five | 229.7-327.8 | fifty eight-477 | seventy five-560 | 10600-12230 |
ERG-450 | 590-730 | 9.8-73.five | 262.4-366.two | sixty four-496 | 75-560 | 10600-12230 |
ERG-500 | 590-730 | 9.eight-63.seven | 327.four-452.4 | seventy eight-529 | ninety-560 | 12790-14620 |
ERF-240-V | 650-980 | -nine.8- -forty nine | 38.1-seventy eight | 13-seventy six | eighteen.five-ninety | 3420-3285 |
ERF-245-V | 650-980 | -nine.eight- -forty nine | forty seven.5-ninety seven.four | sixteen-95 | 22-a hundred and ten | 3425-3360 |
ERF-250-V | 650-980 | -9.eight- -forty nine | sixty three-a hundred and twenty | 19-117 | 22-132 | 3910-3830 |
ERF-290-V | 650-980 | -nine.eight- -forty nine | seventy two.six-one hundred forty four | 22-136 | 30-a hundred and sixty | 4415-4270 |
ERF-295-V | 650-980 | -9.eight- -49 | 76.6-152 | 23-a hundred forty five | thirty-160 | 4425-4485 |
ERF-297-V | 650-980 | -9.8- -49 | eighty four.three-166.8 | 26-a hundred and sixty | thirty-one hundred eighty | 5000-4980 |
ERF-300-V | 650-980 | -nine.8- -forty nine | ninety seven-192 | 29-178 | 37-200 | 5000-4980 |
ERF-350-V | 650-980 | -nine.8- -forty nine | 116-225 | 34-209 | forty five-250 | 5400-5700 |
ERG-300V | 590-730 | -9.eight- -forty nine | 133-193 | 38-184 | forty five-220 | 7800-9100 |
ERG-350V | 590-730 | -nine.eight- -forty nine | 163-231 | 43-216 | fifty five-250 | 9500-9470 |
ERG-400V | 590-730 | -9.8- -forty nine | 199-290 | 52-269 | 75-315 | 9900-10130 |
ERG-445V | 590-730 | -9.8- -forty nine | 224.eight-326.9 | fifty eight-303 | seventy five-355 | 9900-10130 |
ERG-450V | 590-730 | -nine.eight- -forty nine | 255-365 | sixty four-335 | 75-400 | 11230-11300 |
ERG-500V | 590-730 | -9.8- -forty nine | 314-452 | 78-412 | 132-450 | 13630-13850 |
ERF-245W | 650-980 | -13.3- -53.3 | fifty three.5-one hundred and one | 21.five-102 | thirty-one hundred ten | 3630-3360 |
ERF-250W | 650-980 | -13.3- -53.3 | sixty nine-127 | 26.5-127 | 30-one hundred sixty | 3985-4115 |
ERF-290W | 650-980 | -13.three- -53.three | 82.6-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.three- -53.3 | ninety five-174 | 36-174 | 45-200 | 5230-5130 |
ERF-300W | 650-980 | -13.three- -53.3 | 109-195 | 40-193 | 55-220 | 5230-5130 |
ERF-350W | 650-980 | -13.3- -fifty three.three | 129-230 | fifty-230 | seventy five-250 | 5840-5670 |
ERG-300W | 590-730 | -13.three- -53.3 | 142-197 | fifty two-201 | seventy five-220 | 9100-9000 |
ERF-350W | 590-730 | -13.3- -fifty three.three | 168-234.4 | 59-235.5 | seventy five-280 | 9500-9600 |
ERG-400W | 590-730 | -13.three- -53.three | 220-276.6 | seventy one-292 | ninety-315 | 9900-10130 |
ERG-445W | 590-730 | -13.3- -53.three | 244-294.six | 82-331 | ninety-400 | 11230-11300 |
ERG450W | 590-730 | -thirteen.3- -fifty three.three | 275-368.5 | 91-366 | one hundred ten-four hundred | 11230-11300 |
ETRF-250 (240,250) |
650-980 | 98-196 | 64.eight-112 | a hundred thirty five-355 | one hundred sixty-four hundred | 8700-8600 |
ETRF-295 (245,295) |
650-980 | 98-196 | eighty.eight-139 | 167-439 | 185-500 | 9200-9100 |
ETRF-three hundred (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-400 (three hundred,400) |
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-a thousand | 24200-27600 |
ETRF-250W (240,250) |
650-980 | -53.three–eighty | 72-121 | 75.six-121 | ninety-160 | 6100-6470 |
ETRF-295W (245/295) |
650-980 | -53.three–eighty | 93.eight-154 | ninety nine.five-186 | 110-220 | 7000-6400 |
ETRF-300W (2505/300) |
650-980 | -fifty three.three–eighty | 116-189 | one hundred fifteen-220 | 132-250 | 7750-7760 |
EL81WD | 580-980 | nine.eight-58.8 | fifty four.two-a hundred thirty | 18-151 | forty five-185 | 3595 |
EL82WDB | 580-980 | nine.8-58.eight | 72.8-161 | 22-191 | forty five-220 | 3860 |
EL83WDA | 580-980 | 9.8-fifty eight.9 | one zero one-213 | 28.5-202 | forty five-220 | 4300 |
EL84WDA | 580-980 | nine.eight-58.8 | 129-267 | 35.four-252 | forty five-280 | 4720 |
EL93WDA | 580-730 | 9.8-49 | 230-329 | 56.4-311 | 75-355 | 7765 |
EL94WDA | 580-730 | nine.eight-49 | 263-373 | 64-353 | 75-four hundred | 8130 |
EL95WDA | 490-580 | nine.8-fifty eight.eight | 308-434 | 81.4-414 | 90-450 | 11500 |
EL96WDA | 580 | fifty eight.eight | 381 | 497 | 560 | 11500 |
E397WN | one thousand-1650 | 40 | five-9 | |||
E408WN | 870-1650 | forty | ten-22 | |||
E517WN | 980-1580 | forty | 20-30 | |||
E520WN | 930-1550 | forty | 24-45 | |||
E607WN | 750-1250 | 40 | forty five-seventy six | |||
E610WN | 750-1250 | 40 | seventy five-130 |
Spare parts and framework of our roots blower:
Deal of our Roots Blower
Pack into iron case, two layer,blower body and motor in reduce layer, inlet/out silencer and many others in upper layer
Roots blower pack technique same as iron circumstance, just adjust to Fumigation Free of charge Plywood Circumstance
Our manufacturing unit is a professional manufacturer of Roots blowers which has over 20 years’ experience in equipment
manufacturing. It is located in Xihu (West Lake) Dis. East Industrial Park, fifty kilometers to the east of Shan EPT provincial
money— HangZhou. Our organization also has handy traffic transportation, as it is fifteen kilometers absent from
Diaozhen Town station of HangZhou-HangZhou expressway, and 30 kilometers away from East HangZhou station of
ZheJiang -ZheJiang expressway.The top item of our organization is ESR -variety Roots Blower. The roots
vacuum pump is a new kind of high-effectiveness roots blower, which is designed independently dependent on the
domestic and foreign superior technologies. Several patented technologies have been adopted on Roots
Blower, and hence we have manufactured considerable consequences in power conservation and noise reduction, etc.. So far, our
business has invested far more than 30,000,000 RMB to introduce such sophisticated professional tools as
horizontal machining centre, vertical machining centre, two-way CNC surface area planer, CNC lathe, CNC milling
machine, CNC planer, plane grinder, cylindrical grinding machine, and three coordinates testing machine.
In addition to, we have taken a variety of steps to standardize the method circulation this sort of as operating and cooperating
with several scientific research units, schools and universities at home and overseas. We also constantly try to
take up and boost the domestic advanced creation technologies, so as to market the upgrading and
optimization of the item and make the merchandise good quality attain the superior degree at property and overseas.
ESR -sort Roots Blower includes a number of sequence this sort of as A few-leaves Variety, Two-leaves Type and Centrifugal
Sort,which can be further divided to hundreds of types. The merchandise are extensively utilised in sewage therapy,
pneumatic conveying,vacuum packaging, aquaculture, foodstuff processing, EPT power, petrochemical, cement,
mining and other industries. Our goods have this kind of advantages as minimal noise, power conserving, steady high quality,
and extended service lifestyle, and so on.. With the sales outlets throughout the domestic cash cities, our merchandise offer nicely all
in excess of the region, and have been exported to North The united states,Russia, Malaysia, Indonesia, Vietnam, South Africa
and some other nations. Getting acquired the ISO9001 Intercontinental Quality Program Certification, we have
recognized and improved the top quality assurance of the merchandise creating, producing, and installation.
From the procedure of design and style, research and improvement to the completed goods, we have received the entire
procedure controlled independently, thus offering the total foundation and dependability guarantee for the goods steadiness
and durability. Getting a perfect product sales community and right after-revenue services, we offer our customers with higher-
high quality and much more effective provider.All staff of our business sincerely welcome the broad masses of pals to
guidebook, and negotiate enterprise with us.
Our Roots Blower Workshop
Doosn Horzitonal Device Middle
The Software of the Roots Blower
Servicing and inspection
(one) Check all fasteners and locating pins problems no matter whether they are loosening.
(two) Often check out no matter whether the leakage phenomenon of the human body.
(3) Pay out attention to lubrication, amount of grease and noises when running,
figure out regardless of whether it performs beneath the needed situations.
(four) Lubricant & grease: The lubricant is for medium load industrial gear oil
(quality 220, kinematic viscosity of 198 ~ 242mm2 / s 40ºC, flash point ≥ 200ºC)
The grease is butter (synthetic lithium grease penetration 220-250, drop level ≥
190ºC). Change the lubricant and grease soon after 1st 200 hrs running, and substitute
once more right after a moth operating. Afterwards, substitute the lubricant and grease in accordance to the
environment and lubricant (grease) top quality propose a suitable EPT for 3
months.
(5) Often verify the inlet air filter, clear or change the filter in time.
(six) Blower overload often not immediately shown, so pay out interest to
the intake and exhaust stress, bearing temperature and the recent enhance tendencies
of motor to figure out whether the blower functions typically
(7) Just before disassembling the blower, the assembling relation and proportions
should be recorded or calculated, make marks on components to make certain the unique
specifications after assembling.
(eight) When recently device or overhaul, the oil tank ought to be cleaned prior to use
and suggest replace all grease right after 8 hrs managing.
Common failure reason and troubleshooting
No | Failure | Achievable motives | Elimination techniques |
one | Friction amongst the impeller |
(one) Impurities on the impeller, resulting in the gap is way too small (2) Gear use, resulting in a massive backlash (3) The gear is not effectively mounted, can not sustain the impeller synchronization (4) Bearing dress in resulting in clearance increasing. |
(one) Take away dust and check whether or not there is harm elements (2) Change the gear gap, exchange the gears if the gear backlash is greater than the typical thirty% to 50% (3)Re-assemble the gears, preserve the taper get in touch with spot is to 75% (four)Substitute the bearing |
two | Collision between impeller and wall, the impeller top and casing |
(one) Set up gap is not proper (two) working force is also substantial, exceeding the specified benefit (three) Operating temperature is as well substantial (4) Casing or foundation deformation, positioning enthusiast failure (five) Bearing axial place is not good |
(1) Change the hole (2) Recognize triggers of overloading, diminished the pressure to the specified benefit (3) Check the installation precision and decrease the pipe rigidity (4) Examine and restore bearings, and to make sure the clearance (5)Relocation |
3 | Temperature also substantial |
(1) Oil in tank is also much, as well thick or as well soiled (2) Filter or silencer is blocked (three)The stress is higher than the specified value (four)Excessive wear of the impeller, big hole (5)Inadequate ventilation, indoor temperature is high, ensuing in inlet air’s large temperature (six) The rotating velocity is also minimal,consequence in the belt slipping. |
(one)Lessen the oil stage or count on oil (2)Remove of blocking objects (three)Lowering the stress by way of the blower (four)Restore its clearance (five)Open vents to minimize place temperature (6) Improve pace to stop the belt slipping. |
four | Inadequate circulation |
(one) The inlet filter is blocked (two) Impeller put on and the gap boosts also considerably (three) Belt slipping (four) Huge imports strain loss (5) Pipeline ventilation leakage |
(one) Clean the filter dust and obstruction (2) Repair the gap (3)Tighten the belt and boost the amount of belts (4)Change the inlet stress to the specified value (5) Check out and restore the pipeline |
five | Oil leaking or oil leaking into the enclosure |
(1)Substantial tank position result in leakage from the discharge port (two) Seal wear, resulting in shaft oil spills (3) The force is increased than the specified value |
(one)Decrease the oil degree (two)Substitute the seals (three)Very clear the air vents, 2mm diameter faucet is fastened in the center chamber, open up the faucet underneath the wall |
six | Irregular vibration and noise |
(one)Bearing clearance exceeds the specified benefit or bearing dress in (2) The equipment backlash is as well massive, not in a tight fastened (three) The international 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 brought on by overload, (5) Friction amongst the impeller and the inlet housing triggered by overheating (6) Unbalance of the impeller caused by fouling or overseas body (seven) Anchor bolts or other fasteners are loosened |
(1)Replace bearings or bearing seat (two)Reassemble gear and ensure backlash (3)Cleaning blower, examine the scenario is ruined (four)Verify the again force, check out the wheel and adjust gap (5)Check out the filter and back stress, boost the hole in between the impeller inlet and the casing (six)Cleanse the impeller and the casing, to make sure that the impeller clearance perform (7) Tighten the anchor bolts and leveling the base. |
seven | Motor overload |
(one)In comparison with the necessary stress, the strain variation is large that the back pressure or the inlet stress is substantial (2) When compared with the tools demands, blower movement is way too big, so its force will increase (three)Inlet filter is blocked, or outlet pipe is obstructed or blocked (4) Collusion or friction (stuck) rotating elements (5) The oil degree is way too large (6) Narrow V-belt is overheat, vibration is also huge, or pulley is too tiny |
(1) Decrease the force to the specified value (2) Exhaust the extra fuel into the ambiance or minimize the blower speed (three) Take away the obstructions (four)Right away shut down, check the reason (5) Change the oil to the appropriate stage (six) Examine the belt stress, and replaced it with large diameter pulley. |
Our Service
one. Pre promote service 2. Following sell service
a. advocate the ideal model c. online technical assistance,
b. factory tour d. total daily life spare parts and techinical assistance
Gurantee
twelve months gurantee for our roots blowers
/ The use of unique products manufacturer’s (OEM) part quantities or logos , e.g. CASE® and John Deere® are for reference purposes only and for indicating item use and compatibility. Our firm and the shown EPT elements contained herein are not sponsored, authorized, or manufactured by the OEM. /