We – EPG Group the largest couplings and gears manufacturing unit in China with five distinct branches. For a lot more particulars: Cellular/whatsapp/telegram/Kakao us at: 0086-13083988828 /
We make all varieties of roots blower, centrifugal blower, Our Principal products are as beneath:
Type | Diameter | Charge of stream | Force |
ESR-MJ(Intensive Kind) | Φ50~Φ300mm | .5~140m³/min | 9.8KPa~ninety eight.8Kpa |
ESR(Regular Kind) | Φ50~Φ350mm | .five~140m³/min | nine.8KPa~seventy eight.4Kpa |
ESR-H(Large-pressure Variety) | Φ50~Φ350mm | .seven~160m³/min | 58.8KPa~98.8Kpa |
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-Sequence |
Φ250~Φ500mm | 50~500m³/min | 9.8KPa~98Kpa |
ERR-ERG Variety | Φ250~Φ500mm | one hundred twenty~420m³/min | nine.8KPa~98.8Kpa |
The operating basic principle of the three-blade roots blower: two 3-lobed rotors are arranged in the cavity, and the
suction port and the discharge port are opened on each sides of the cavity. Via the motion 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
function of blowing.
Characteristic of our roots blower:
one. Large adjustment of the air quantity
two. Reduced Sounds
3. High effectiveness
four. Reduced power cosumption
five. Prolonged time existence
six. Trustworthy working, easy routine maintenance,little footprint
The parameters of our roots blower:
Kind | Ratary Pace (r/min) |
Pressure Increase (Kpa) |
Capability (m/min) |
Shaft Power (Kw) |
Motor | Device Maximn Bodyweight(Kg) |
Electricity (Kw) |
||||||
ESR-fifty | 1100-2120 | nine.eight-58.8 | .sixty five-2.58 | .three-three.fifty four | .75-4 | 128-158 |
ESR-sixty five | 1100-2130 | nine.eight-fifty eight.eight | .94-3.sixty six | .38-four.46 | .seventy five-5.5 | 155-185 |
ESR-80 | 1140-1900 | nine.eight-58.eight | two.34-5.43 | one.04-seven.42 | 2.two-eleven | a hundred and fifty five-277 |
ESR-one hundred | 1060-1980 | nine.8-58.eight | four.fifty seven-nine.05 | one.35-twelve.15 | 3-fifteen | 309-377 |
ESR-one hundred twenty five | 980-1850 | 9.8-58.eight | 5.35-12.four | one.sixty five-5.19 | five.5-eighteen.five | 408-451 |
ESR-125C | 970-1830 | 9.eight-fifty eight.eight | 7.5-17.57 | 3.two-eighteen.five | four-22 | 408-451 |
ESR-150 | 810-1730 | nine.eight-58.8 | ten.37-27.fifteen | three.84-forty.eighty two | seven.five-45 | 688-848 |
ESR-one hundred seventy five | 970-1520 | nine.8-58.8 | 19.sixty five-36.sixty five | seven.two-forty five.95 | 11-fifty five | 980-1080 |
ESR-200B | 740-1450 | 9.eight-fifty eight.eight | 19.sixty five-44.8 | ten.fifteen-60.forty four | 15-seventy five | 1272-1546 |
ESR-200 | 810-1480 | nine.eight-fifty eight.eight | 27.65-59.two | eight.05-eighty,twelve | fifteen-90 | 1272-1546 |
ESR-250B | 1100-1480 | nine.8-fifty eight.eight | fifty four.seventy seven-77.fifty five | 19.97-90.97 | thirty-a hundred and ten | 1490-2454 |
ESR-250 | 990-1480 | nine.eight-fifty eight.eight | sixty one.four-97.52 | 20.1-117.three | thirty-132 | 1490-2454 |
ESR-300 | 990-1480 | nine.eight-fifty eight.8 | 87.one-138.one | 26.four-167.8 | 37-185 | 3326-3446 |
ESR-350 | 730-1480 | nine.8-58.8 | 78.41-177.31 | fifty five-250 | ||
ESR-50H | 1230-2120 | 63.seven-98 | .forty five-2.02 | 2.05-six.12 | 3-7.5 | 160–one hundred seventy |
ESR-65H | 1240-2130 | 63.7-ninety eight | .seventy eight-2.fifty three | 2.89-7.55 | four-11 | 198-230 |
ESR-80H | 1140-1900 | sixty three.seven-ninety eight | one.82-four.fifty five | 4.09-ten.1 | 5.5-15 | 316-326 |
ESR-100H | 1060-1980 | 63.7-ninety eight | two.65-8.06 | six.36-17.two | 7.5-22 | 398-459 |
ESR-125H | 980-1850 | sixty three.7-ninety eight | 4.64-11.23 | eight.92-24.two | eleven-30 | 544-630 |
ESR-150H | 810-1730 | sixty three.7-98 | nine.53-twenty five.76 | 17.sixteen-sixty five | 18.5-seventy five | 752-1571 |
ESR-200H | 810-1480 | 63.seven-98 | 25.34-fifty six.92 | 42.34-120 | 55-132 | 1426-1934 |
ESR-250H | 990-1480 | sixty three.7-98 | 58-93.7 | eighty three.2-205 | 90-220 | 2980-3468 |
ESR300H | 990-1480 | 63.7-ninety eight | 86.nine-134.1 | 114.seven-270 | 132-280 | 3476-3998 |
ERF-245 | 650-980 | 9.8-98 | forty seven.five-ninety seven.four | sixteen-183 | eighteen.five-two hundred | 3630-3690 |
ERF-250 | 650-980 | 9.8-98 | 61.6-120.4 | 19-227 | 22-250 | 4450-4500 |
ERF-290 | 650-980 | nine.eight-seventy eight.four | ninety two.3-128 | 22-213 | 30-250 | 4890-4710 |
ERF-295 | 650-980 | nine.eight-seventy eight.four | ninety seven.3-152.5 | 23-227 | thirty-250 | 4890-4880 |
ERF-297 | 650-980 | 9.eight-seventy eight.4 | 87.5-167.6 | 26-249 | 30-280 | 5330-5520 |
ERF-300 | 650-980 | 9.eight-seventy eight.4 | 101.five-188.seven | 29-278 | 37-315 | 5330-5520 |
ERF-350 | 650-980 | 9.eight-seventy eight.4 | 126-224.nine | 34-249 | 45-280 | 5210-6470 |
ERG-300 | 590-730 | 9.8-98 | 128.3-196 | 38-362 | forty five-400 | 9440-15710 |
ERG-350 | 590-730 | 9.eight-ninety eight | 159.three-231.six | forty three-420 | fifty five-450 | 9700-1571 |
ERG-four hundred | 590-730 | 9.eight-eighty three.three | 203.1-290.9 | 52-449 | 75-500 | 10090-11390 |
ERG-445 | 590-730 | 9.eight-seventy three.5 | 229.seven-327.8 | fifty eight-477 | 75-560 | 10600-12230 |
ERG-450 | 590-730 | nine.eight-73.five | 262.4-366.two | sixty four-496 | seventy five-560 | 10600-12230 |
ERG-five hundred | 590-730 | nine.8-sixty three.7 | 327.4-452.four | seventy eight-529 | 90-560 | 12790-14620 |
ERF-240-V | 650-980 | -nine.8- -forty nine | 38.one-78 | thirteen-76 | eighteen.5-90 | 3420-3285 |
ERF-245-V | 650-980 | -9.eight- -forty nine | 47.five-97.4 | 16-95 | 22-110 | 3425-3360 |
ERF-250-V | 650-980 | -nine.eight- -forty nine | sixty three-a hundred and twenty | 19-117 | 22-132 | 3910-3830 |
ERF-290-V | 650-980 | -9.8- -forty nine | seventy two.six-one hundred forty four | 22-136 | thirty-a hundred and sixty | 4415-4270 |
ERF-295-V | 650-980 | -9.eight- -49 | seventy six.6-152 | 23-one hundred forty five | 30-a hundred and sixty | 4425-4485 |
ERF-297-V | 650-980 | -nine.8- -49 | eighty four.three-166.eight | 26-160 | 30-180 | 5000-4980 |
ERF-300-V | 650-980 | -9.8- -49 | 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 | -nine.8- -49 | 133-193 | 38-184 | 45-220 | 7800-9100 |
ERG-350V | 590-730 | -9.8- -49 | 163-231 | 43-216 | 55-250 | 9500-9470 |
ERG-400V | 590-730 | -nine.eight- -forty nine | 199-290 | 52-269 | seventy five-315 | 9900-10130 |
ERG-445V | 590-730 | -nine.eight- -forty nine | 224.eight-326.nine | fifty eight-303 | 75-355 | 9900-10130 |
ERG-450V | 590-730 | -nine.eight- -forty nine | 255-365 | sixty four-335 | seventy five-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 | -13.3- -53.three | 53.5-one zero one | 21.5-102 | thirty-110 | 3630-3360 |
ERF-250W | 650-980 | -13.3- -fifty three.three | 69-127 | 26.5-127 | 30-160 | 3985-4115 |
ERF-290W | 650-980 | -thirteen.three- -fifty three.three | 82.six-a hundred and fifty | 30.5-149 | 37-185 | 4340-4580 |
ERF-295W | 650-980 | -thirteen.3- -fifty three.3 | 87-158 | 32-158 | 37-185 | 4440-4580 |
ERF-297W | 650-980 | -thirteen.three- -fifty three.3 | ninety five-174 | 36-174 | forty five-200 | 5230-5130 |
ERF-300W | 650-980 | -thirteen.three- -53.three | 109-195 | 40-193 | 55-220 | 5230-5130 |
ERF-350W | 650-980 | -13.3- -fifty three.three | 129-230 | 50-230 | 75-250 | 5840-5670 |
ERG-300W | 590-730 | -thirteen.three- -53.three | 142-197 | fifty two-201 | 75-220 | 9100-9000 |
ERF-350W | 590-730 | -13.three- -53.3 | 168-234.4 | fifty nine-235.five | seventy five-280 | 9500-9600 |
ERG-400W | 590-730 | -13.3- -53.three | 220-276.six | seventy one-292 | 90-315 | 9900-10130 |
ERG-445W | 590-730 | -thirteen.three- -53.three | 244-294.6 | eighty two-331 | 90-four hundred | 11230-11300 |
ERG450W | 590-730 | -13.three- -fifty three.three | 275-368.five | 91-366 | one hundred ten-four hundred | 11230-11300 |
ETRF-250 (240,250) |
650-980 | 98-196 | sixty four.eight-112 | 135-355 | 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 | 98-176.four | 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,four hundred) |
590-740 | 98-176.four | 205-273 | 380-773 | 450-900 | 21350-24200 |
ETRG-450 (350,450) |
590-740 | ninety eight-176.4 | 263-428 | 476-955 | 560-one thousand | 24200-27600 |
ETRF-250W (240,250) |
650-980 | -fifty three.three–eighty | 72-121 | 75.six-121 | ninety-one hundred sixty | 6100-6470 |
ETRF-295W (245/295) |
650-980 | -53.3–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–80 | 116-189 | a hundred and fifteen-220 | 132-250 | 7750-7760 |
EL81WD | 580-980 | nine.eight-58.8 | 54.two-130 | 18-151 | 45-185 | 3595 |
EL82WDB | 580-980 | 9.eight-fifty eight.eight | seventy two.eight-161 | 22-191 | 45-220 | 3860 |
EL83WDA | 580-980 | nine.eight-58.9 | one hundred and one-213 | 28.five-202 | 45-220 | 4300 |
EL84WDA | 580-980 | 9.eight-58.eight | 129-267 | 35.4-252 | forty five-280 | 4720 |
EL93WDA | 580-730 | 9.8-49 | 230-329 | fifty six.4-311 | 75-355 | 7765 |
EL94WDA | 580-730 | nine.8-49 | 263-373 | sixty four-353 | seventy five-four hundred | 8130 |
EL95WDA | 490-580 | 9.8-fifty eight.8 | 308-434 | 81.4-414 | ninety-450 | 11500 |
EL96WDA | 580 | 58.eight | 381 | 497 | 560 | 11500 |
E397WN | a thousand-1650 | forty | 5-9 | |||
E408WN | 870-1650 | forty | 10-22 | |||
E517WN | 980-1580 | 40 | twenty-30 | |||
E520WN | 930-1550 | 40 | 24-forty five | |||
E607WN | 750-1250 | 40 | forty five-76 | |||
E610WN | 750-1250 | 40 | 75-one hundred thirty |
Spare components and framework of our roots blower:
Deal of our Roots Blower
Pack into iron situation, two layer,blower physique and motor in reduce layer, inlet/out silencer etc in upper layer
Roots blower pack method same as iron situation, just adjust to Fumigation Cost-free Plywood Circumstance
Our manufacturing facility is a specialist manufacturer of Roots blowers which has over twenty years’ experience in equipment
manufacturing. It is situated in Xihu (West Lake) Dis. East Industrial Park, fifty kilometers to the east of Shan EPT provincial
funds— HangZhou. Our firm also has handy targeted 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 solution of our company is ESR -kind Roots Blower. The roots
vacuum pump is a new type of large-effectiveness roots blower, which is produced independently primarily based on the
domestic and international superior technologies. Several patented technologies have been adopted on Roots
Blower, and as a result we have made substantial effects in energy conservation and noise reduction, and many others.. So much, our
company has invested more than thirty,000,000 RMB to introduce this sort of advanced professional products as
horizontal machining heart, vertical machining centre, two-way CNC surface planer, CNC lathe, CNC milling
device, CNC planer, plane grinder, cylindrical grinding machine, and three coordinates tests equipment.
In addition to, we have taken numerous actions to standardize the method stream such as doing work and cooperating
with a lot of scientific research units, schools and universities at home and overseas. We also continuously consider to
take in and improve the domestic innovative production technologies, so as to advertise the upgrading and
optimization of the merchandise and make the merchandise high quality attain the innovative level at residence and overseas.
ESR -kind Roots Blower involves a number of collection this kind of as 3-leaves Type, Two-leaves Kind and Centrifugal
Variety,which can be more divided to hundreds of versions. The products are broadly utilised in sewage treatment,
pneumatic conveying,vacuum packaging, aquaculture, food processing, EPT electricity, petrochemical, cement,
mining and other industries. Our goods have such positive aspects as reduced noise, vitality conserving, secure good quality,
and extended support lifestyle, and so on.. With the product sales outlets throughout the domestic money metropolitan areas, our merchandise promote nicely all
above the nation, and have been exported to North The us,Russia, Malaysia, Indonesia, Vietnam, South Africa
and some other nations. Obtaining acquired the ISO9001 Intercontinental Top quality Method Certification, we have
established and improved the top quality assurance of the merchandise designing, production, and installation.
From the approach of design, investigation and advancement to the concluded products, we have acquired the total
approach managed independently, hence offering the entire foundation and reliability assure for the items steadiness
and toughness. Possessing a perfect sales network and right after-sales support, we give our buyers with greater-
top quality and more productive services.All employees of our company sincerely welcome the wide masses of pals to
information, and negotiate enterprise with us.
Our Roots Blower Workshop
Doosn Horzitonal Device Heart
The Application of the Roots Blower
Routine maintenance and inspection
(1) Examine all fasteners and locating pins situations whether they are loosening.
(2) Always verify whether or not the leakage phenomenon of the entire body.
(3) Pay out consideration to lubrication, quantity of grease and noises when managing,
determine whether or not it functions under the needed problems.
(four) Lubricant & grease: The lubricant is for medium load industrial gear oil
(grade 220, kinematic viscosity of 198 ~ 242mm2 / s 40ºC, flash level ≥ 200ºC)
The grease is butter (artificial lithium grease penetration 220-250, drop position ≥
190ºC). Substitute the lubricant and grease soon after 1st two hundred hours operating, and substitute
once again soon after a moth running. Later, replace the lubricant and grease in accordance to the
environment and lubricant (grease) top quality propose a suited EPT for a few
months.
(five) Usually check the inlet air filter, cleanse or exchange the filter in time.
(6) Blower overload sometimes not quickly exhibited, so pay out focus to
the ingestion and exhaust stress, bearing temperature and the existing improve trends
of motor to determine no matter whether the blower functions usually
(seven) Before disassembling the blower, the assembling relation and dimensions
must be recorded or measured, make marks on factors to guarantee the first
demands soon after assembling.
(8) When recently machine or overhaul, the oil tank ought to be cleaned ahead of use
and propose change all grease following eight several hours running.
Frequent failure purpose and troubleshooting
No | Failure | Attainable reasons | Elimination techniques |
1 | Friction among the impeller |
(1) Impurities on the impeller, resulting in the gap is too tiny (two) Equipment dress in, ensuing in a massive backlash (three) The equipment is not properly fastened, can not maintain the impeller synchronization (4) Bearing dress in ensuing in clearance escalating. |
(1) Eliminate grime and check out whether or not there is injury areas (2) Alter the gear hole, change the gears if the equipment backlash is greater than the average thirty% to fifty% (three)Re-assemble the gears, maintain the taper make contact with spot is to seventy five% (four)Substitute the bearing |
two | Collision among impeller and wall, the impeller prime and casing |
(1) Installation gap is not correct (two) working pressure is also high, exceeding the specified price (three) Running temperature is as well large (four) Casing or base deformation, positioning fan failure (5) Bearing axial location is not good |
(1) Alter the gap (two) Discover leads to of overloading, reduced the stress to the specified price (three) Verify the set up precision and lessen the pipe tension (four) Check and repair bearings, and to make certain the clearance (5)Relocation |
3 | Temperature way too high |
(1) Oil in tank is also considerably, too thick or too filthy (two) Filter or silencer is blocked (three)The pressure is larger than the specified benefit (4)Abnormal dress in of the impeller, massive hole (5)Bad air flow, indoor temperature is high, resulting in inlet air’s higher temperature (six) The rotating pace is also low,outcome in the belt slipping. |
(one)Reduce the oil level or count on oil (two)Get rid of of blocking objects (three)Decreasing the stress by means of the blower (four)Fix its clearance (five)Open up vents to reduce room temperature (six) Increase pace to avoid the belt slipping. |
4 | Inadequate circulation |
(one) The inlet filter is blocked (2) Impeller wear and the gap raises also much (3) Belt slipping (4) Large imports pressure reduction (five) Pipeline air flow leakage |
(one) Clear the filter dust and obstruction (2) Restore the gap (three)Tighten the belt and improve the number of belts (four)Change the inlet stress to the specified value (5) Examine and fix the pipeline |
five | Oil leaking or oil leaking into the enclosure |
(1)High tank situation trigger leakage from the discharge port (two) Seal dress in, ensuing in shaft oil spills (three) The pressure is greater than the specified value |
(one)Decrease the oil level (two)Exchange the seals (three)Distinct the air vents, 2mm diameter faucet is mounted in the center chamber, open up the faucet below the wall |
6 | Irregular vibration and sounds |
(1)Bearing clearance exceeds the specified benefit or bearing dress in (two) The equipment backlash is as well big, not in a limited fixed (3) The foreign 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 induced by overload, (five) Friction among the impeller and the inlet housing induced by overheating (6) Unbalance of the impeller caused by fouling or overseas human body (seven) Anchor bolts or other fasteners are loosened |
(1)Substitute bearings or bearing seat (two)Reassemble equipment and make sure backlash (3)Cleansing blower, verify the situation is ruined (four)Examine the back again strain, examine the wheel and modify hole (5)Check out the filter and back pressure, increase the gap amongst the impeller inlet and the casing (6)Clear the impeller and the casing, to guarantee that the impeller clearance work (seven) Tighten the anchor bolts and leveling the base. |
7 | Motor overload |
(one)In contrast with the necessary pressure, the strain distinction is big that the back again pressure or the inlet strain is high (two) Compared with the products demands, blower movement is as well huge, so its pressure raises (3)Inlet filter is blocked, or outlet pipe is obstructed or blocked (four) Collusion or friction (stuck) rotating parts (5) The oil stage is as well substantial (six) Slender V-belt is overheat, vibration is way too massive, or pulley is as well tiny |
(one) Reduce the stress to the specified value (2) Exhaust the excessive gas into the ambiance or reduce the blower velocity (3) Take away the obstructions (four)Instantly shut down, check out the cause (5) Alter the oil to the correct degree (6) Examine the belt rigidity, and changed it with massive diameter pulley. |
Our Services
one. Pre market service two. Following sell service
a. recommend the suitable model c. online technological help,
b. factory tour d. whole daily life spare parts and techinical assistance
Gurantee
twelve months gurantee for our roots blowers
/ The use of original gear manufacturer’s (OEM) element quantities or logos , e.g. CASE® and John Deere® are for reference purposes only and for indicating merchandise use and compatibility. Our company and the detailed EPT elements contained herein are not sponsored, authorized, or produced by the OEM. /