We make all kinds of roots blower, centrifugal blower, Our Main merchandise are as below:
Variety | Diameter | Fee of movement | Pressure |
ESR-MJ(Intensive Type) | Φ50~Φ300mm | .5~140m³/min | 9.8KPa~98.8Kpa |
ESR(Regular Variety) | Φ50~Φ350mm | .five~140m³/min | nine.8KPa~seventy eight.4Kpa |
ESR-H(Higher-force Sort) | Φ50~Φ350mm | .seven~160m³/min | fifty eight.8KPa~ninety eight.8Kpa |
ESR-V(Vacuum Pump) | Φ50~Φ350mm | .five~160m³/min | nine.8KPa~53.3Kpa |
EL Collection | Φ200~Φ600mm | 20.three~750m³/min | nine.8KPa~fifty eight.8Kpa |
Multistage Centrifugal Blower or C-Series |
Φ250~Φ500mm | 50~500m³/min | 9.8KPa~98Kpa |
ERR-ERG Kind | Φ250~Φ500mm | 120~420m³/min | 9.8KPa~98.8Kpa |
The doing work theory of the 3-blade roots blower: two 3-lobed rotors are organized in the cavity, and the
suction port and the discharge port are opened on each sides of the cavity. By way 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 gas in the chamber is pushed to obtain the
objective of blowing.
Attribute of our roots blower:
1. Massive adjustment of the air quantity
2. Lower Sound
3. Substantial effectiveness
four. Reduced energy cosumption
five. Extended time life
six. Trustworthy working, straightforward routine maintenance,little footprint
The parameters of our roots blower:
Type | Ratary Speed (r/min) |
Pressure Increase (Kpa) |
Potential (m/min) |
Shaft Electricity (Kw) |
Motor | Device Maximn Excess weight(Kg) |
Electricity (Kw) |
||||||
ESR-fifty | 1100-2120 | nine.8-58.8 | .sixty five-2.fifty eight | .three-3.54 | .75-four | 128-158 |
ESR-65 | 1100-2130 | nine.eight-58.8 | .ninety four-three.sixty six | .38-4.46 | .seventy five-five.five | 155-185 |
ESR-80 | 1140-1900 | 9.eight-fifty eight.8 | two.34-five.forty three | one.04-seven.forty two | 2.2-11 | a hundred and fifty five-277 |
ESR-a hundred | 1060-1980 | nine.8-58.8 | four.57-nine.05 | 1.35-12.15 | three-fifteen | 309-377 |
ESR-125 | 980-1850 | nine.8-fifty eight.eight | five.35-twelve.4 | 1.sixty five-five.19 | five.five-eighteen.5 | 408-451 |
ESR-125C | 970-1830 | nine.8-fifty eight.8 | 7.five-17.57 | three.2-18.5 | four-22 | 408-451 |
ESR-a hundred and fifty | 810-1730 | nine.8-fifty eight.8 | ten.37-27.15 | 3.84-40.eighty two | 7.5-forty five | 688-848 |
ESR-one hundred seventy five | 970-1520 | nine.8-fifty eight.eight | 19.sixty five-36.sixty five | seven.2-forty five.ninety five | 11-fifty five | 980-1080 |
ESR-200B | 740-1450 | nine.8-fifty eight.eight | 19.sixty five-forty four.8 | 10.15-sixty.forty four | fifteen-seventy five | 1272-1546 |
ESR-two hundred | 810-1480 | nine.8-fifty eight.eight | 27.65-59.two | 8.05-eighty,twelve | fifteen-90 | 1272-1546 |
ESR-250B | 1100-1480 | nine.8-58.eight | 54.77-seventy seven.55 | 19.ninety seven-ninety.97 | thirty-a hundred and ten | 1490-2454 |
ESR-250 | 990-1480 | nine.eight-fifty eight.8 | 61.4-97.52 | 20.one-117.three | 30-132 | 1490-2454 |
ESR-300 | 990-1480 | nine.eight-fifty eight.8 | 87.1-138.one | 26.four-167.8 | 37-185 | 3326-3446 |
ESR-350 | 730-1480 | 9.eight-58.8 | 78.forty one-177.31 | fifty five-250 | ||
ESR-50H | 1230-2120 | sixty three.seven-98 | .forty five-2.02 | 2.05-6.twelve | three-7.five | one hundred sixty–170 |
ESR-65H | 1240-2130 | 63.seven-98 | .78-2.fifty three | two.89-7.55 | four-eleven | 198-230 |
ESR-80H | 1140-1900 | 63.7-98 | 1.eighty two-four.fifty five | 4.09-ten.one | 5.five-15 | 316-326 |
ESR-100H | 1060-1980 | sixty three.seven-ninety eight | two.sixty five-eight.06 | 6.36-17.two | seven.5-22 | 398-459 |
ESR-125H | 980-1850 | sixty three.7-ninety eight | 4.64-eleven.23 | eight.ninety two-24.two | eleven-30 | 544-630 |
ESR-150H | 810-1730 | 63.seven-ninety eight | 9.fifty three-25.seventy six | 17.sixteen-65 | eighteen.five-75 | 752-1571 |
ESR-200H | 810-1480 | sixty three.seven-98 | twenty five.34-56.92 | forty two.34-a hundred and twenty | fifty five-132 | 1426-1934 |
ESR-250H | 990-1480 | sixty three.7-98 | 58-ninety three.7 | eighty three.2-205 | ninety-220 | 2980-3468 |
ESR300H | 990-1480 | 63.seven-98 | 86.9-134.1 | 114.seven-270 | 132-280 | 3476-3998 |
ERF-245 | 650-980 | nine.8-ninety eight | forty seven.five-ninety seven.4 | 16-183 | eighteen.5-200 | 3630-3690 |
ERF-250 | 650-980 | 9.eight-ninety eight | sixty one.six-120.4 | 19-227 | 22-250 | 4450-4500 |
ERF-290 | 650-980 | nine.8-78.4 | 92.3-128 | 22-213 | 30-250 | 4890-4710 |
ERF-295 | 650-980 | 9.eight-seventy eight.four | 97.3-152.5 | 23-227 | thirty-250 | 4890-4880 |
ERF-297 | 650-980 | nine.eight-seventy eight.4 | 87.5-167.6 | 26-249 | 30-280 | 5330-5520 |
ERF-300 | 650-980 | 9.8-seventy eight.4 | a hundred and one.5-188.7 | 29-278 | 37-315 | 5330-5520 |
ERF-350 | 650-980 | nine.eight-78.4 | 126-224.nine | 34-249 | 45-280 | 5210-6470 |
ERG-300 | 590-730 | 9.8-98 | 128.three-196 | 38-362 | forty five-400 | 9440-15710 |
ERG-350 | 590-730 | nine.eight-98 | 159.3-231.6 | forty three-420 | 55-450 | 9700-1571 |
ERG-four hundred | 590-730 | nine.8-83.three | 203.1-290.nine | fifty two-449 | seventy five-five hundred | 10090-11390 |
ERG-445 | 590-730 | nine.8-seventy three.5 | 229.7-327.8 | fifty eight-477 | 75-560 | 10600-12230 |
ERG-450 | 590-730 | nine.eight-seventy three.five | 262.four-366.two | 64-496 | 75-560 | 10600-12230 |
ERG-five hundred | 590-730 | 9.8-63.7 | 327.four-452.4 | 78-529 | 90-560 | 12790-14620 |
ERF-240-V | 650-980 | -nine.8- -49 | 38.1-78 | thirteen-seventy six | eighteen.five-ninety | 3420-3285 |
ERF-245-V | 650-980 | -nine.eight- -forty nine | 47.5-ninety seven.four | sixteen-ninety five | 22-one hundred ten | 3425-3360 |
ERF-250-V | 650-980 | -nine.eight- -forty nine | 63-a hundred and twenty | 19-117 | 22-132 | 3910-3830 |
ERF-290-V | 650-980 | -9.8- -49 | 72.six-a hundred and forty four | 22-136 | thirty-one hundred sixty | 4415-4270 |
ERF-295-V | 650-980 | -9.8- -49 | seventy six.6-152 | 23-one hundred forty five | thirty-160 | 4425-4485 |
ERF-297-V | 650-980 | -nine.8- -49 | eighty four.3-166.eight | 26-one hundred sixty | thirty-180 | 5000-4980 |
ERF-three hundred-V | 650-980 | -nine.eight- -forty nine | 97-192 | 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 | -9.8- -49 | 133-193 | 38-184 | forty five-220 | 7800-9100 |
ERG-350V | 590-730 | -nine.eight- -forty nine | 163-231 | 43-216 | 55-250 | 9500-9470 |
ERG-400V | 590-730 | -nine.8- -49 | 199-290 | fifty two-269 | seventy five-315 | 9900-10130 |
ERG-445V | 590-730 | -9.8- -forty nine | 224.eight-326.9 | fifty eight-303 | 75-355 | 9900-10130 |
ERG-450V | 590-730 | -nine.8- -forty nine | 255-365 | sixty four-335 | 75-four hundred | 11230-11300 |
ERG-500V | 590-730 | -9.8- -forty nine | 314-452 | 78-412 | 132-450 | 13630-13850 |
ERF-245W | 650-980 | -thirteen.3- -53.3 | 53.five-101 | 21.five-102 | 30-110 | 3630-3360 |
ERF-250W | 650-980 | -13.three- -53.3 | sixty nine-127 | 26.5-127 | 30-a hundred and sixty | 3985-4115 |
ERF-290W | 650-980 | -thirteen.three- -53.3 | eighty two.6-150 | 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.3- -53.3 | 95-174 | 36-174 | forty five-two hundred | 5230-5130 |
ERF-300W | 650-980 | -thirteen.3- -fifty three.three | 109-195 | 40-193 | 55-220 | 5230-5130 |
ERF-350W | 650-980 | -13.3- -fifty three.3 | 129-230 | 50-230 | 75-250 | 5840-5670 |
ERG-300W | 590-730 | -13.3- -53.three | 142-197 | fifty two-201 | seventy five-220 | 9100-9000 |
ERF-350W | 590-730 | -13.three- -53.three | 168-234.four | 59-235.five | 75-280 | 9500-9600 |
ERG-400W | 590-730 | -13.three- -53.three | 220-276.six | seventy one-292 | 90-315 | 9900-10130 |
ERG-445W | 590-730 | -13.three- -fifty three.3 | 244-294.6 | 82-331 | 90-four hundred | 11230-11300 |
ERG450W | 590-730 | -13.3- -fifty three.3 | 275-368.5 | ninety one-366 | a hundred and ten-four hundred | 11230-11300 |
ETRF-250 (240,250) |
650-980 | 98-196 | sixty four.eight-112 | 135-355 | one hundred sixty-four hundred | 8700-8600 |
ETRF-295 (245,295) |
650-980 | 98-196 | eighty.eight-139 | 167-439 | 185-five hundred | 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 | ninety eight-137.2 | 124-207 | 241-473 | 280-560 | 10700-11110 |
ETRG-four hundred (300,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 | -53.3–eighty | seventy two-121 | 75.6-121 | ninety-a hundred and sixty | 6100-6470 |
ETRF-295W (245/295) |
650-980 | -53.three–eighty | 93.8-154 | 99.five-186 | one hundred ten-220 | 7000-6400 |
ETRF-300W (2505/three hundred) |
650-980 | -53.three–80 | 116-189 | 115-220 | 132-250 | 7750-7760 |
EL81WD | 580-980 | 9.eight-fifty eight.8 | 54.2-one hundred thirty | eighteen-151 | forty five-185 | 3595 |
EL82WDB | 580-980 | 9.8-58.8 | seventy two.8-161 | 22-191 | 45-220 | 3860 |
EL83WDA | 580-980 | 9.eight-fifty eight.9 | a hundred and one-213 | 28.five-202 | 45-220 | 4300 |
EL84WDA | 580-980 | 9.8-58.eight | 129-267 | 35.four-252 | 45-280 | 4720 |
EL93WDA | 580-730 | nine.eight-49 | 230-329 | 56.4-311 | seventy five-355 | 7765 |
EL94WDA | 580-730 | 9.8-49 | 263-373 | sixty four-353 | seventy five-four hundred | 8130 |
EL95WDA | 490-580 | 9.eight-58.8 | 308-434 | 81.four-414 | 90-450 | 11500 |
EL96WDA | 580 | 58.eight | 381 | 497 | 560 | 11500 |
E397WN | one thousand-1650 | forty | 5-9 | |||
E408WN | 870-1650 | 40 | ten-22 | |||
E517WN | 980-1580 | 40 | 20-30 | |||
E520WN | 930-1550 | 40 | 24-forty five | |||
E607WN | 750-1250 | forty | forty five-76 | |||
E610WN | 750-1250 | forty | seventy five-a hundred thirty |
Spare areas and composition of our roots blower:
Deal of our Roots Blower
Pack into iron case, two layer,blower physique and motor in decrease layer, inlet/out silencer and so on in higher layer
Roots blower pack method exact same as iron circumstance, just modify to Fumigation Totally free Plywood Situation
Our factory is a expert producer of Roots blowers which has more than twenty years’ experience in machinery
manufacturing. It is positioned in Xihu (West Lake) Dis. East CZPT Park, fifty kilometers to the east of ZheJiang provincial
capital— HangZhou. Our business also has handy site visitors transportation, as it is 15 kilometers away from
Diaozhen Town station of HangZhou-HangZhou expressway, and 30 kilometers absent from East HangZhou station of
ZheJiang -ZheJiang expressway.The foremost item of our company is ESR -kind Roots Blower. The roots
vacuum pump is a new sort of high-performance roots blower, which is created independently based on the
domestic and international superior systems. Numerous patented technologies have been adopted on Roots
Blower, and therefore we have made important consequences in power conservation and noise reduction, and many others.. So considerably, our
business has invested far more than 30,000,000 RMB to introduce these kinds of innovative specialist products as
horizontal machining heart, vertical machining heart, two-way CNC surface planer, CNC lathe, CNC milling
equipment, CNC planer, airplane grinder, cylindrical grinding device, and three coordinates tests device.
In addition to, we have taken various actions to CZPTize the procedure stream these kinds of as operating and cooperating
with numerous scientific research units, faculties and universities at house and overseas. We also continuously try out to
take in and enhance the domestic superior production technologies, so as to advertise the upgrading and
optimization of the solution and make the solution quality achieve the superior degree at residence and overseas.
ESR -sort Roots Blower contains numerous sequence this kind of as A few-leaves Kind, Two-leaves Variety and Centrifugal
Kind,which can be even more divided to hundreds of versions. The goods are broadly utilised in sewage remedy,
pneumatic conveying,vacuum packaging, aquaculture, foodstuff processing, electric powered electricity, petrochemical, cement,
mining and other industries. Our products have this kind of rewards as minimal sound, power preserving, steady quality,
and extended support daily life, and so on.. With the income outlets throughout the domestic funds towns, our merchandise promote nicely all
above the country, and have been exported to North The us,Russia, Malaysia, Indonesia, Vietnam, South Africa
and some other international locations. Having obtained the ISO9001 CZPT CZPT System Certification, we have
proven and improved the quality assurance of the items developing, manufacturing, and set up.
From the method of style, analysis and development to the finished products, we have got the complete
procedure managed independently, thus providing the entire foundation and reliability ensure for the items stability
and longevity. Possessing a perfect sales network and following-sales service, we provide our clients with higher-
good quality and far more efficient services.All personnel of our business sincerely welcome the wide masses of buddies to
guide, and negotiate company with us.
Our Roots Blower Workshop
Doosn Horzitonal CZPT Middle
The Software of the Roots Blower
Servicing and inspection
(one) Verify all fasteners and finding pins conditions regardless of whether they are loosening.
(2) Often check out no matter whether the leakage phenomenon of the entire body.
(three) Spend attention to lubrication, volume of grease and noises when working,
determine no matter whether it performs below the required situations.
(4) CZPT & 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 (artificial lithium grease penetration 220-250, drop point ≥
190ºC). Change the lubricant and grease right after first 200 hours operating, and exchange
yet again following a moth working. Afterwards, change the lubricant and grease in accordance to the
atmosphere and lubricant (grease) top quality propose a ideal replacement for 3
months.
(5) Usually check out the inlet air filter, thoroughly clean or substitute the filter in time.
(6) Blower overload occasionally not quickly shown, so pay attention to
the consumption and exhaust stress, bearing temperature and the current enhance traits
of motor to establish regardless of whether the blower operates normally
(seven) Prior to disassembling the blower, the assembling relation and dimensions
have to be recorded or measured, make marks on components to make certain the CZPT
requirements following assembling.
(8) When recently device or overhaul, the oil tank need to be cleaned prior to use
and suggest exchange all grease right after eight hours working.
Common failure explanation and troubleshooting
No | Failure | Achievable motives | Elimination approaches |
1 | Friction among the impeller |
(one) Impurities on the impeller, resulting in the gap is as well modest (two) Gear wear, resulting in a massive backlash (three) The gear is not effectively fixed, can not sustain the impeller synchronization (four) Bearing use resulting in clearance growing. |
(one) Remove dirt and examine whether there is injury areas (two) Adjust the gear gap, exchange the gears if the equipment backlash is better than the average 30% to 50% (three)Re-assemble the gears, keep the taper contact region is to 75% (four)Replace the bearing |
two | Collision amongst impeller and wall, the impeller prime and casing |
(one) Installation hole is not right (two) running strain is way too large, exceeding the specified worth (3) Operating temperature is as well high (4) Casing or base deformation, positioning enthusiast failure (5) Bearing axial area is not excellent |
(one) Alter the hole (2) Recognize leads to of overloading, decreased the strain to the specified price (three) Examine the set up accuracy and minimize the pipe pressure (four) Check out and restore bearings, and to ensure the clearance (5)Relocation |
3 | Temperature as well higher |
(1) Oil in tank is also significantly, also thick or as well dirty (two) CZPT or silencer is blocked (3)The pressure is higher than the specified value (4)Extreme put on of the impeller, large gap (5)Very poor air flow, indoor temperature is large, ensuing in inlet air’s higher temperature (6) The rotating velocity is as well low,outcome in the belt slipping. |
(1)Minimize the oil degree or rely on oil (two)Remove of blocking objects (three)Minimizing the stress via the blower (four)Fix its clearance (five)Open up vents to reduce place temperature (6) Boost pace to avert the belt slipping. |
4 | Inadequate flow |
(1) The inlet filter is blocked (two) Impeller wear and the hole raises as well much (three) Belt slipping (four) Large imports stress loss (five) CZPT ventilation leakage |
(1) Clear the filter dust and obstruction (2) Restore the hole (3)Tighten the belt and enhance the amount of belts (four)Alter the inlet force to the specified benefit (5) Check and mend the pipeline |
five | Oil leaking or oil leaking into the enclosure |
(1)High tank position lead to leakage from the discharge port (two) Seal dress in, ensuing in shaft oil spills (three) The stress is larger than the specified benefit |
(1)Decrease the oil level (two)Replace the seals (three)Obvious the air vents, 2mm diameter faucet is mounted in the center chamber, open the faucet below the wall |
6 | Abnormal vibration and noise |
(one)Bearing clearance exceeds the specified price or bearing put on (two) The equipment backlash is as well massive, not in a tight set (3) The overseas objects and dust induced by the impeller and the impeller, the impeller and the housing collision (four) the impeller shaft deformation caused the collision triggered by overload, (five) Friction between the impeller and the inlet housing induced by overheating (6) Unbalance of the impeller triggered by fouling or foreign human body (7) CZPT bolts or other fasteners are loosened |
(one)Substitute bearings or bearing seat (two)Reassemble gear and guarantee backlash (three)Cleaning blower, examine the scenario is destroyed (4)Examine the again stress, verify the wheel and change hole (5)Check out the filter and back again stress, improve the gap between the impeller inlet and the casing (six)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 |
(one)When compared with the needed force, the force difference is large that the back pressure or the inlet strain is substantial (two) In contrast with the equipment demands, blower stream is too large, so its pressure will increase (3)Inlet filter is blocked, or outlet pipe is obstructed or blocked (4) Collusion or friction (caught) rotating elements (5) The oil degree is way too large (six) Narrow V-belt is overheat, vibration is too big, or pulley is as well little |
(1) Lessen the force to the specified worth (two) Exhaust the extra gas into the environment or decrease the blower pace (3) Eliminate the obstructions (4)Immediately shut down, verify the explanation (five) Alter the oil to the proper level (six) Verify the belt tension, and replaced it with huge diameter pulley. |
Our Services
one. Pre market service 2. Following market service
a. recommend the appropriate model c. on the internet technical support,
b. manufacturing unit tour d. whole existence spare components and techinical assistance
Gurantee
twelve months gurantee for our roots blowers