We – EPG Group the largest couplings and gears factory in China with five different branches. For a lot more particulars: Cell/whatsapp/telegram/Kakao us at: 0086-13083988828 /
We make all sorts of roots blower, centrifugal blower, Our Principal goods are as beneath:
Kind | Diameter | Charge of flow | Strain |
ESR-MJ(Intense Sort) | Φ50~Φ300mm | .five~140m³/min | 9.8KPa~ninety eight.8Kpa |
ESR(Regular Sort) | Φ50~Φ350mm | .5~140m³/min | nine.8KPa~seventy eight.4Kpa |
ESR-H(High-force Kind) | Φ50~Φ350mm | .7~160m³/min | 58.8KPa~ninety eight.8Kpa |
ESR-V(Vacuum Pump) | Φ50~Φ350mm | .5~160m³/min | 9.8KPa~fifty three.3Kpa |
EL Collection | Φ200~Φ600mm | 20.three~750m³/min | 9.8KPa~58.8Kpa |
Multistage Centrifugal Blower or C-Series |
Φ250~Φ500mm | 50~500m³/min | nine.8KPa~98Kpa |
ERR-ERG Sort | Φ250~Φ500mm | 120~420m³/min | nine.8KPa~ninety eight.8Kpa |
The operating basic principle of the 3-blade roots blower: two three-lobed rotors are organized in the cavity, and the
suction port and the discharge port are opened on equally sides of the cavity. By means of 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 fuel in the chamber is pushed to obtain the
function of blowing.
Attribute of our roots blower:
one. Massive adjustment of the air quantity
two. Reduced Sounds
three. High efficiency
four. Minimal strength cosumption
five. Long time lifestyle
six. Reliable managing, effortless maintenance,little footprint
The parameters of our roots blower:
Sort | Ratary Velocity (r/min) |
Stress Rise (Kpa) |
Capability (m/min) |
Shaft Electricity (Kw) |
Motor | Device Maximn Excess weight(Kg) |
Energy (Kw) |
||||||
ESR-fifty | 1100-2120 | nine.eight-fifty eight.8 | .sixty five-2.fifty eight | .3-three.54 | .75-4 | 128-158 |
ESR-65 | 1100-2130 | 9.eight-58.eight | .94-three.sixty six | .38-four.forty six | .seventy five-five.5 | a hundred and fifty five-185 |
ESR-80 | 1140-1900 | nine.8-58.8 | two.34-5.43 | 1.04-7.forty two | two.2-eleven | 155-277 |
ESR-100 | 1060-1980 | 9.8-58.8 | four.57-9.05 | 1.35-twelve.15 | 3-fifteen | 309-377 |
ESR-one hundred twenty five | 980-1850 | nine.eight-58.eight | five.35-twelve.4 | one.65-five.19 | 5.5-eighteen.five | 408-451 |
ESR-125C | 970-1830 | nine.eight-58.eight | seven.five-seventeen.fifty seven | three.2-eighteen.5 | four-22 | 408-451 |
ESR-a hundred and fifty | 810-1730 | 9.8-58.eight | 10.37-27.fifteen | three.eighty four-forty.eighty two | 7.five-45 | 688-848 |
ESR-175 | 970-1520 | 9.8-58.eight | 19.sixty five-36.sixty five | 7.two-45.ninety five | 11-fifty five | 980-1080 |
ESR-200B | 740-1450 | nine.eight-fifty eight.8 | 19.sixty five-44.eight | ten.fifteen-sixty.forty four | 15-seventy five | 1272-1546 |
ESR-two hundred | 810-1480 | nine.8-fifty eight.8 | 27.sixty five-fifty nine.2 | eight.05-80,12 | 15-ninety | 1272-1546 |
ESR-250B | 1100-1480 | 9.8-fifty eight.8 | fifty four.seventy seven-77.fifty five | 19.97-ninety.97 | 30-one hundred ten | 1490-2454 |
ESR-250 | 990-1480 | nine.8-58.eight | 61.four-ninety seven.52 | twenty.one-117.3 | 30-132 | 1490-2454 |
ESR-three hundred | 990-1480 | 9.8-58.eight | 87.one-138.one | 26.4-167.eight | 37-185 | 3326-3446 |
ESR-350 | 730-1480 | nine.eight-fifty eight.eight | 78.forty one-177.31 | fifty five-250 | ||
ESR-50H | 1230-2120 | sixty three.7-ninety eight | .forty five-two.02 | two.05-6.12 | 3-7.five | a hundred and sixty–a hundred and seventy |
ESR-65H | 1240-2130 | sixty three.seven-98 | .78-two.fifty three | two.89-seven.55 | four-eleven | 198-230 |
ESR-80H | 1140-1900 | sixty three.seven-ninety eight | one.eighty two-four.55 | four.09-ten.one | five.5-fifteen | 316-326 |
ESR-100H | 1060-1980 | 63.7-98 | 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 | 8.ninety two-24.2 | eleven-thirty | 544-630 |
ESR-150H | 810-1730 | sixty three.seven-ninety eight | 9.fifty three-25.76 | 17.16-sixty five | 18.five-seventy five | 752-1571 |
ESR-200H | 810-1480 | sixty three.7-ninety eight | 25.34-56.92 | forty two.34-a hundred and twenty | 55-132 | 1426-1934 |
ESR-250H | 990-1480 | 63.seven-98 | fifty eight-93.seven | eighty three.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.5-ninety seven.four | sixteen-183 | eighteen.5-200 | 3630-3690 |
ERF-250 | 650-980 | nine.8-ninety eight | sixty one.6-one hundred twenty.4 | 19-227 | 22-250 | 4450-4500 |
ERF-290 | 650-980 | nine.eight-seventy eight.4 | 92.3-128 | 22-213 | 30-250 | 4890-4710 |
ERF-295 | 650-980 | nine.eight-78.four | 97.3-152.5 | 23-227 | thirty-250 | 4890-4880 |
ERF-297 | 650-980 | nine.8-78.four | 87.five-167.6 | 26-249 | 30-280 | 5330-5520 |
ERF-three hundred | 650-980 | nine.eight-78.four | 101.5-188.7 | 29-278 | 37-315 | 5330-5520 |
ERF-350 | 650-980 | nine.8-seventy eight.four | 126-224.9 | 34-249 | forty five-280 | 5210-6470 |
ERG-300 | 590-730 | nine.8-ninety eight | 128.three-196 | 38-362 | forty five-400 | 9440-15710 |
ERG-350 | 590-730 | 9.eight-ninety eight | 159.three-231.6 | forty three-420 | fifty five-450 | 9700-1571 |
ERG-four hundred | 590-730 | 9.eight-83.3 | 203.1-290.nine | fifty two-449 | seventy five-five hundred | 10090-11390 |
ERG-445 | 590-730 | 9.8-seventy three.five | 229.seven-327.8 | 58-477 | 75-560 | 10600-12230 |
ERG-450 | 590-730 | 9.eight-seventy three.five | 262.four-366.two | 64-496 | 75-560 | 10600-12230 |
ERG-five hundred | 590-730 | 9.eight-63.seven | 327.4-452.four | seventy eight-529 | ninety-560 | 12790-14620 |
ERF-240-V | 650-980 | -9.eight- -49 | 38.1-seventy eight | 13-76 | eighteen.five-90 | 3420-3285 |
ERF-245-V | 650-980 | -nine.eight- -49 | 47.five-ninety seven.four | sixteen-95 | 22-one hundred ten | 3425-3360 |
ERF-250-V | 650-980 | -nine.8- -49 | 63-one hundred twenty | 19-117 | 22-132 | 3910-3830 |
ERF-290-V | 650-980 | -9.8- -forty nine | seventy two.6-a hundred and forty four | 22-136 | 30-a hundred and sixty | 4415-4270 |
ERF-295-V | 650-980 | -9.eight- -forty nine | 76.6-152 | 23-a hundred forty five | 30-one hundred sixty | 4425-4485 |
ERF-297-V | 650-980 | -9.8- -forty nine | 84.3-166.eight | 26-a hundred and sixty | 30-a hundred and eighty | 5000-4980 |
ERF-300-V | 650-980 | -9.8- -49 | ninety seven-192 | 29-178 | 37-200 | 5000-4980 |
ERF-350-V | 650-980 | -nine.eight- -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- -49 | 163-231 | 43-216 | fifty five-250 | 9500-9470 |
ERG-400V | 590-730 | -nine.eight- -49 | 199-290 | fifty two-269 | seventy five-315 | 9900-10130 |
ERG-445V | 590-730 | -nine.eight- -forty nine | 224.eight-326.9 | fifty eight-303 | 75-355 | 9900-10130 |
ERG-450V | 590-730 | -nine.eight- -49 | 255-365 | 64-335 | 75-400 | 11230-11300 |
ERG-500V | 590-730 | -9.eight- -49 | 314-452 | 78-412 | 132-450 | 13630-13850 |
ERF-245W | 650-980 | -thirteen.three- -53.3 | fifty three.5-one zero one | 21.five-102 | 30-one hundred ten | 3630-3360 |
ERF-250W | 650-980 | -13.3- -fifty three.3 | 69-127 | 26.five-127 | 30-160 | 3985-4115 |
ERF-290W | 650-980 | -thirteen.3- -fifty three.3 | eighty two.6-150 | 30.five-149 | 37-185 | 4340-4580 |
ERF-295W | 650-980 | -13.3- -fifty three.three | 87-158 | 32-158 | 37-185 | 4440-4580 |
ERF-297W | 650-980 | -13.3- -53.3 | ninety five-174 | 36-174 | 45-two hundred | 5230-5130 |
ERF-300W | 650-980 | -thirteen.3- -53.3 | 109-195 | forty-193 | 55-220 | 5230-5130 |
ERF-350W | 650-980 | -13.three- -53.three | 129-230 | 50-230 | 75-250 | 5840-5670 |
ERG-300W | 590-730 | -thirteen.3- -fifty three.3 | 142-197 | fifty two-201 | seventy five-220 | 9100-9000 |
ERF-350W | 590-730 | -thirteen.three- -fifty three.three | 168-234.4 | 59-235.5 | seventy five-280 | 9500-9600 |
ERG-400W | 590-730 | -thirteen.three- -fifty three.3 | 220-276.6 | seventy one-292 | 90-315 | 9900-10130 |
ERG-445W | 590-730 | -thirteen.three- -53.3 | 244-294.six | 82-331 | ninety-400 | 11230-11300 |
ERG450W | 590-730 | -13.3- -53.three | 275-368.5 | ninety one-366 | a hundred and ten-400 | 11230-11300 |
ETRF-250 (240,250) |
650-980 | ninety eight-196 | sixty four.eight-112 | one hundred thirty five-355 | a hundred and sixty-four hundred | 8700-8600 |
ETRF-295 (245,295) |
650-980 | 98-196 | eighty.8-139 | 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 | 98-137.two | 124-207 | 241-473 | 280-560 | 10700-11110 |
ETRG-four hundred (three hundred,four hundred) |
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 | 560-1000 | 24200-27600 |
ETRF-250W (240,250) |
650-980 | -53.3–eighty | 72-121 | seventy five.6-121 | ninety-one hundred sixty | 6100-6470 |
ETRF-295W (245/295) |
650-980 | -fifty three.three–80 | ninety three.eight-154 | ninety nine.five-186 | 110-220 | 7000-6400 |
ETRF-300W (2505/300) |
650-980 | -fifty three.three–80 | 116-189 | 115-220 | 132-250 | 7750-7760 |
EL81WD | 580-980 | 9.eight-fifty eight.8 | fifty four.two-130 | eighteen-151 | forty five-185 | 3595 |
EL82WDB | 580-980 | nine.eight-58.8 | seventy two.eight-161 | 22-191 | 45-220 | 3860 |
EL83WDA | 580-980 | 9.eight-fifty eight.9 | one zero one-213 | 28.five-202 | 45-220 | 4300 |
EL84WDA | 580-980 | 9.8-fifty eight.eight | 129-267 | 35.four-252 | forty five-280 | 4720 |
EL93WDA | 580-730 | 9.8-49 | 230-329 | 56.four-311 | seventy five-355 | 7765 |
EL94WDA | 580-730 | nine.eight-forty nine | 263-373 | 64-353 | 75-four hundred | 8130 |
EL95WDA | 490-580 | 9.eight-58.8 | 308-434 | 81.4-414 | 90-450 | 11500 |
EL96WDA | 580 | fifty eight.eight | 381 | 497 | 560 | 11500 |
E397WN | a thousand-1650 | 40 | five-nine | |||
E408WN | 870-1650 | forty | ten-22 | |||
E517WN | 980-1580 | forty | 20-30 | |||
E520WN | 930-1550 | 40 | 24-45 | |||
E607WN | 750-1250 | 40 | forty five-76 | |||
E610WN | 750-1250 | 40 | 75-a hundred thirty |
Spare parts and framework of our roots blower:
Package of our Roots Blower
Pack into iron situation, two layer,blower human body and motor in lower layer, inlet/out silencer and so on in upper layer
Roots blower pack technique exact same as iron case, just change to Fumigation Free of charge Plywood Situation
Our manufacturing unit is a expert producer of Roots blowers which has over 20 years’ experience in equipment
manufacturing. It is located in Xihu (West Lake) Dis. East Industrial Park, 50 kilometers to the east of Shan EPT provincial
funds— HangZhou. Our firm also has practical targeted traffic transportation, as it is fifteen kilometers absent from
Diaozhen Town station of HangZhou-HangZhou expressway, and thirty kilometers absent from East HangZhou station of
ZheJiang -ZheJiang expressway.The major product of our business is ESR -variety Roots Blower. The roots
vacuum pump is a new type of higher-effectiveness roots blower, which is produced independently based mostly on the
domestic and international sophisticated systems. Numerous patented technologies have been adopted on Roots
Blower, and thus we have manufactured significant effects in vitality conservation and noise reduction, and so on.. So significantly, our
business has invested a lot more than thirty,000,000 RMB to introduce this kind of superior professional tools as
horizontal machining centre, vertical machining centre, two-way CNC surface planer, CNC lathe, CNC milling
equipment, CNC planer, aircraft grinder, cylindrical grinding equipment, and a few coordinates tests equipment.
Besides, we have taken a variety of measures to standardize the method stream these kinds of as operating and cooperating
with many scientific research units, colleges and universities at property and abroad. We also repeatedly attempt to
absorb and increase the domestic superior generation systems, so as to advertise the upgrading and
optimization of the product and make the product top quality get to the sophisticated degree at property and abroad.
ESR -type Roots Blower includes numerous collection such as Three-leaves Kind, Two-leaves Sort and Centrifugal
Kind,which can be more divided to hundreds of kinds. The products are widely employed in sewage therapy,
pneumatic conveying,vacuum packaging, aquaculture, foods processing, EPT power, petrochemical, cement,
mining and other industries. Our goods have these kinds of benefits as minimal sound, power saving, steady good quality,
and long service existence, and so on.. With the sales outlets throughout the domestic capital towns, our products sell well all
in excess of the nation, and have been exported to North The us,Russia, Malaysia, Indonesia, Vietnam, South Africa
and some other nations around the world. Obtaining got the ISO9001 International High quality System Certification, we have
set up and improved the high quality assurance of the products developing, producing, and set up.
From the method of layout, investigation and improvement to the concluded products, we have received the entire
process controlled independently, hence supplying the complete basis and dependability assure for the merchandise balance
and longevity. Having a perfect sales network and after-sales service, we provide our customers with greater-
good quality and a lot more efficient provider.All workers of our organization sincerely welcome the broad masses of close friends to
manual, and negotiate company with us.
Our Roots Blower Workshop
Doosn Horzitonal Machine Middle
The Software of the Roots Blower
Routine maintenance and inspection
(one) Check all fasteners and locating pins problems no matter whether they are loosening.
(two) Constantly verify whether the leakage phenomenon of the body.
(3) Shell out consideration to lubrication, quantity of grease and noises when operating,
establish no matter whether it operates beneath the required conditions.
(4) Lubricant & grease: The lubricant is for medium load industrial gear oil
(grade 220, kinematic viscosity of 198 ~ 242mm2 / s 40ºC, flash stage ≥ 200ºC)
The grease is butter (synthetic lithium grease penetration 220-250, drop level ≥
190ºC). Exchange the lubricant and grease following very first 200 hours operating, and change
once more following a moth working. Afterwards, replace the lubricant and grease in accordance to the
atmosphere and lubricant (grease) top quality suggest a ideal EPT for three
months.
(five) Always check the inlet air filter, clear or substitute the filter in time.
(6) Blower overload at times not quickly exhibited, so pay consideration to
the intake and exhaust pressure, bearing temperature and the recent improve developments
of motor to determine regardless of whether the blower performs generally
(seven) Before disassembling the blower, the assembling relation and dimensions
need to be recorded or measured, make marks on elements to guarantee the original
requirements after assembling.
(8) When newly device or overhaul, the oil tank must be cleaned just before use
and propose replace all grease right after eight several hours working.
Widespread failure reason and troubleshooting
No | Failure | Feasible causes | Elimination techniques |
1 | Friction in between the impeller |
(1) Impurities on the impeller, ensuing in the hole is also small (2) Gear dress in, ensuing in a large backlash (3) The gear is not nicely mounted, can not keep the impeller synchronization (four) Bearing dress in resulting in clearance increasing. |
(one) Get rid of dust and check out no matter whether there is injury parts (two) Modify the equipment hole, substitute the gears if the gear backlash is higher than the typical 30% to fifty% (3)Re-assemble the gears, maintain the taper get in touch with region is to 75% (4)Exchange the bearing |
two | Collision between impeller and wall, the impeller top and casing |
(1) Installation gap is not correct (two) running strain is too higher, exceeding the specified price (3) Running temperature is also higher (4) Casing or foundation deformation, positioning enthusiast failure (five) Bearing axial spot is not excellent |
(one) Adjust the gap (2) Recognize triggers of overloading, reduced the stress to the specified worth (three) Check out the set up accuracy and decrease the pipe tension (four) Examine and repair bearings, and to make sure the clearance (5)Relocation |
3 | Temperature as well large |
(1) Oil in tank is as well much, way too thick or too dirty (two) Filter or silencer is blocked (three)The stress is increased than the specified price (four)Abnormal dress in of the impeller, massive hole (five)Very poor ventilation, indoor temperature is higher, ensuing in inlet air’s substantial temperature (six) The rotating velocity is way too minimal,result in the belt slipping. |
(1)Minimize the oil amount or rely on oil (two)Get rid of of blocking objects (three)Minimizing the strain by means of the blower (4)Mend its clearance (5)Open up vents to decrease space temperature (6) Enhance velocity to prevent the belt slipping. |
4 | Insufficient movement |
(one) The inlet filter is blocked (two) Impeller wear and the gap raises as well much (three) Belt slipping (four) Huge imports force decline (5) Pipeline ventilation leakage |
(one) Cleanse the filter dust and obstruction (two) Mend the hole (three)Tighten the belt and boost the variety of belts (4)Modify the inlet strain to the specified price (5) Examine and fix the pipeline |
5 | Oil leaking or oil leaking into the enclosure |
(1)Higher tank position lead to leakage from the discharge port (two) Seal dress in, ensuing in shaft oil spills (three) The force is greater than the specified price |
(1)Reduce the oil level (2)Change the seals (3)Clear the air vents, 2mm diameter faucet is set in the center chamber, open the faucet underneath the wall |
6 | Abnormal vibration and sound |
(one)Bearing clearance exceeds the specified worth or bearing use (two) The equipment backlash is too large, not in a tight set (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 triggered by overload, (5) Friction in between the impeller and the inlet housing caused by overheating (6) Unbalance of the impeller induced by fouling or foreign entire body (7) Anchor bolts or other fasteners are loosened |
(one)Replace bearings or bearing seat (two)Reassemble equipment and make sure backlash (three)Cleaning blower, verify the situation is damaged (4)Verify the back force, examine the wheel and change gap (5)Check the filter and back again strain, increase the hole among the impeller inlet and the casing (6)Cleanse the impeller and the casing, to ensure that the impeller clearance perform (seven) Tighten the anchor bolts and leveling the foundation. |
seven | Motor overload |
(1)In comparison with the required strain, the pressure distinction is large that the back pressure or the inlet strain is large (two) In contrast with the gear needs, blower movement is also huge, so its force increases (three)Inlet filter is blocked, or outlet pipe is obstructed or blocked (four) Collusion or friction (trapped) rotating components (five) The oil stage is too substantial (6) Slim V-belt is overheat, vibration is also big, or pulley is too modest |
(1) Reduce the strain to the specified value (two) Exhaust the excess fuel into the ambiance or minimize the blower pace (three) Take away the obstructions (4)Instantly shut down, verify the explanation (five) Change the oil to the appropriate stage (six) Examine the belt rigidity, and changed it with big diameter pulley. |
Our Service
1. Pre promote service two. Soon after promote service
a. suggest the appropriate model c. on-line specialized support,
b. manufacturing unit tour d. whole lifestyle spare parts and techinical assist
Gurantee
twelve months gurantee for our roots blowers
/ The use of original products manufacturer’s (OEM) part figures or trademarks , e.g. CASE® and John Deere® are for reference needs only and for indicating merchandise use and compatibility. Our company and the outlined EPT parts contained herein are not sponsored, accepted, or manufactured by the OEM. /