We make all kinds of roots blower, centrifugal blower, Our Major merchandise are as beneath:
Variety | Diameter | Charge of flow | Pressure |
ESR-MJ(Intensive Sort) | Φ50~Φ300mm | .5~140m³/min | 9.8KPa~98.8Kpa |
ESR(Ordinary Variety) | Φ50~Φ350mm | .five~140m³/min | nine.8KPa~78.4Kpa |
ESR-H(Large-strain Type) | Φ50~Φ350mm | .7~160m³/min | 58.8KPa~98.8Kpa |
ESR-V(Vacuum Pump) | Φ50~Φ350mm | .5~160m³/min | 9.8KPa~53.3Kpa |
EL Collection | Φ200~Φ600mm | twenty.three~750m³/min | nine.8KPa~fifty eight.8Kpa |
Multistage Centrifugal Blower or C-Series |
Φ250~Φ500mm | 50~500m³/min | nine.8KPa~98Kpa |
ERR-ERG Variety | Φ250~Φ500mm | 120~420m³/min | 9.8KPa~98.8Kpa |
The functioning theory 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 the two sides of the cavity. Via the action of a pair of
synchronous gears, the two rotors rotate in opposite 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 obtain the
objective of blowing.
Attribute of our roots blower:
one. Huge adjustment of the air quantity
two. Minimal Sound
3. Higher efficiency
four. Reduced energy cosumption
5. Lengthy time life
6. Reputable working, straightforward servicing,tiny footprint
The parameters of our roots blower:
Type | Ratary Speed (r/min) |
Pressure Increase (Kpa) |
Potential (m/min) |
Shaft Energy (Kw) |
Motor | Unit Maximn Weight(Kg) |
Electricity (Kw) |
||||||
ESR-fifty | 1100-2120 | 9.8-fifty eight.8 | .65-two.fifty eight | .three-three.54 | .75-four | 128-158 |
ESR-65 | 1100-2130 | nine.8-58.eight | .94-three.sixty six | .38-four.46 | .75-5.5 | one hundred fifty five-185 |
ESR-eighty | 1140-1900 | 9.8-58.eight | two.34-five.forty three | 1.04-7.42 | two.2-11 | one hundred fifty five-277 |
ESR-one hundred | 1060-1980 | 9.eight-fifty eight.eight | 4.57-9.05 | one.35-twelve.15 | 3-15 | 309-377 |
ESR-one hundred twenty five | 980-1850 | 9.8-58.eight | 5.35-twelve.4 | 1.65-5.19 | five.five-18.5 | 408-451 |
ESR-125C | 970-1830 | nine.8-fifty eight.eight | 7.five-17.fifty seven | three.2-eighteen.five | four-22 | 408-451 |
ESR-one hundred fifty | 810-1730 | nine.eight-58.8 | 10.37-27.fifteen | three.84-forty.82 | 7.five-45 | 688-848 |
ESR-175 | 970-1520 | 9.8-58.eight | 19.sixty five-36.65 | seven.two-forty five.95 | eleven-fifty five | 980-1080 |
ESR-200B | 740-1450 | 9.eight-58.eight | 19.65-44.8 | ten.15-sixty.44 | fifteen-75 | 1272-1546 |
ESR-200 | 810-1480 | nine.8-58.8 | 27.65-59.two | eight.05-eighty,twelve | fifteen-ninety | 1272-1546 |
ESR-250B | 1100-1480 | nine.8-fifty eight.8 | fifty four.seventy seven-77.fifty five | 19.97-90.97 | thirty-110 | 1490-2454 |
ESR-250 | 990-1480 | nine.eight-fifty eight.eight | sixty one.4-97.52 | twenty.1-117.three | thirty-132 | 1490-2454 |
ESR-300 | 990-1480 | 9.eight-fifty eight.8 | 87.1-138.1 | 26.4-167.8 | 37-185 | 3326-3446 |
ESR-350 | 730-1480 | nine.8-fifty eight.8 | 78.41-177.31 | fifty five-250 | ||
ESR-50H | 1230-2120 | 63.7-98 | .45-two.02 | two.05-6.twelve | 3-7.five | one hundred sixty–one hundred seventy |
ESR-65H | 1240-2130 | sixty three.seven-ninety eight | .78-2.53 | two.89-seven.fifty five | four-eleven | 198-230 |
ESR-80H | 1140-1900 | 63.seven-98 | one.82-4.55 | four.09-10.one | 5.5-15 | 316-326 |
ESR-100H | 1060-1980 | 63.7-ninety eight | 2.sixty five-8.06 | six.36-seventeen.two | seven.5-22 | 398-459 |
ESR-125H | 980-1850 | 63.7-98 | 4.sixty four-11.23 | 8.92-24.2 | eleven-thirty | 544-630 |
ESR-150H | 810-1730 | sixty three.seven-ninety eight | 9.53-25.seventy six | seventeen.sixteen-sixty five | eighteen.5-75 | 752-1571 |
ESR-200H | 810-1480 | 63.seven-ninety eight | twenty five.34-fifty six.ninety two | 42.34-120 | 55-132 | 1426-1934 |
ESR-250H | 990-1480 | sixty three.7-98 | fifty eight-ninety three.seven | eighty three.two-205 | ninety-220 | 2980-3468 |
ESR300H | 990-1480 | 63.seven-ninety eight | 86.9-134.1 | 114.seven-270 | 132-280 | 3476-3998 |
ERF-245 | 650-980 | 9.8-ninety eight | 47.five-97.4 | 16-183 | 18.5-two hundred | 3630-3690 |
ERF-250 | 650-980 | 9.8-98 | sixty one.six-120.four | 19-227 | 22-250 | 4450-4500 |
ERF-290 | 650-980 | nine.8-78.four | 92.three-128 | 22-213 | thirty-250 | 4890-4710 |
ERF-295 | 650-980 | 9.8-78.four | ninety seven.3-152.5 | 23-227 | thirty-250 | 4890-4880 |
ERF-297 | 650-980 | nine.eight-78.4 | 87.5-167.6 | 26-249 | 30-280 | 5330-5520 |
ERF-three hundred | 650-980 | 9.8-78.4 | a hundred and one.five-188.7 | 29-278 | 37-315 | 5330-5520 |
ERF-350 | 650-980 | nine.eight-seventy eight.four | 126-224.nine | 34-249 | 45-280 | 5210-6470 |
ERG-three hundred | 590-730 | nine.eight-98 | 128.three-196 | 38-362 | 45-400 | 9440-15710 |
ERG-350 | 590-730 | 9.8-98 | 159.three-231.six | 43-420 | fifty five-450 | 9700-1571 |
ERG-400 | 590-730 | nine.eight-83.3 | 203.1-290.nine | fifty two-449 | seventy five-five hundred | 10090-11390 |
ERG-445 | 590-730 | nine.eight-73.five | 229.seven-327.eight | 58-477 | 75-560 | 10600-12230 |
ERG-450 | 590-730 | 9.eight-73.5 | 262.4-366.2 | 64-496 | seventy five-560 | 10600-12230 |
ERG-500 | 590-730 | 9.eight-63.7 | 327.four-452.4 | 78-529 | 90-560 | 12790-14620 |
ERF-240-V | 650-980 | -nine.eight- -49 | 38.one-seventy eight | thirteen-76 | eighteen.five-90 | 3420-3285 |
ERF-245-V | 650-980 | -9.8- -forty nine | 47.5-ninety seven.four | 16-95 | 22-one hundred ten | 3425-3360 |
ERF-250-V | 650-980 | -9.eight- -forty nine | 63-120 | 19-117 | 22-132 | 3910-3830 |
ERF-290-V | 650-980 | -9.eight- -forty nine | seventy two.6-144 | 22-136 | 30-160 | 4415-4270 |
ERF-295-V | 650-980 | -nine.8- -49 | seventy six.6-152 | 23-145 | 30-one hundred sixty | 4425-4485 |
ERF-297-V | 650-980 | -9.8- -49 | eighty four.3-166.8 | 26-one hundred sixty | 30-one hundred eighty | 5000-4980 |
ERF-three hundred-V | 650-980 | -9.eight- -forty nine | 97-192 | 29-178 | 37-two hundred | 5000-4980 |
ERF-350-V | 650-980 | -9.8- -49 | 116-225 | 34-209 | forty five-250 | 5400-5700 |
ERG-300V | 590-730 | -9.eight- -49 | 133-193 | 38-184 | forty five-220 | 7800-9100 |
ERG-350V | 590-730 | -nine.eight- -forty nine | 163-231 | forty three-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- -49 | 224.8-326.nine | fifty eight-303 | seventy five-355 | 9900-10130 |
ERG-450V | 590-730 | -9.eight- -forty nine | 255-365 | 64-335 | 75-four hundred | 11230-11300 |
ERG-500V | 590-730 | -nine.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 | 21.5-102 | 30-a hundred and ten | 3630-3360 |
ERF-250W | 650-980 | -thirteen.three- -53.3 | 69-127 | 26.five-127 | thirty-a hundred and sixty | 3985-4115 |
ERF-290W | 650-980 | -thirteen.three- -fifty three.three | 82.6-a hundred and fifty | thirty.5-149 | 37-185 | 4340-4580 |
ERF-295W | 650-980 | -thirteen.three- -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 | -13.3- -fifty three.3 | 109-195 | 40-193 | fifty five-220 | 5230-5130 |
ERF-350W | 650-980 | -thirteen.3- -53.three | 129-230 | 50-230 | seventy five-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.3 | 168-234.four | fifty nine-235.five | seventy five-280 | 9500-9600 |
ERG-400W | 590-730 | -thirteen.3- -fifty three.3 | 220-276.six | seventy one-292 | ninety-315 | 9900-10130 |
ERG-445W | 590-730 | -thirteen.3- -fifty three.3 | 244-294.6 | 82-331 | 90-400 | 11230-11300 |
ERG450W | 590-730 | -thirteen.3- -fifty three.3 | 275-368.five | 91-366 | a hundred and ten-four hundred | 11230-11300 |
ETRF-250 (240,250) |
650-980 | 98-196 | sixty four.8-112 | 135-355 | one hundred sixty-400 | 8700-8600 |
ETRF-295 (245,295) |
650-980 | ninety eight-196 | eighty.eight-139 | 167-439 | 185-five hundred | 9200-9100 |
ETRF-300 (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 (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.four | 263-428 | 476-955 | 560-one thousand | 24200-27600 |
ETRF-250W (240,250) |
650-980 | -fifty three.three–eighty | 72-121 | seventy five.six-121 | 90-160 | 6100-6470 |
ETRF-295W (245/295) |
650-980 | -fifty three.3–80 | ninety three.eight-154 | ninety nine.5-186 | a hundred and ten-220 | 7000-6400 |
ETRF-300W (2505/300) |
650-980 | -fifty three.3–80 | 116-189 | a hundred and fifteen-220 | 132-250 | 7750-7760 |
EL81WD | 580-980 | nine.eight-fifty eight.8 | 54.2-130 | eighteen-151 | 45-185 | 3595 |
EL82WDB | 580-980 | nine.eight-fifty eight.8 | seventy two.8-161 | 22-191 | forty five-220 | 3860 |
EL83WDA | 580-980 | nine.8-fifty eight.nine | one hundred and one-213 | 28.five-202 | 45-220 | 4300 |
EL84WDA | 580-980 | nine.8-fifty eight.eight | 129-267 | 35.four-252 | forty five-280 | 4720 |
EL93WDA | 580-730 | nine.8-49 | 230-329 | fifty six.four-311 | 75-355 | 7765 |
EL94WDA | 580-730 | 9.8-49 | 263-373 | sixty four-353 | seventy five-400 | 8130 |
EL95WDA | 490-580 | nine.eight-58.eight | 308-434 | eighty one.4-414 | ninety-450 | 11500 |
EL96WDA | 580 | 58.8 | 381 | 497 | 560 | 11500 |
E397WN | one thousand-1650 | 40 | five-nine | |||
E408WN | 870-1650 | 40 | 10-22 | |||
E517WN | 980-1580 | forty | twenty-30 | |||
E520WN | 930-1550 | forty | 24-forty five | |||
E607WN | 750-1250 | forty | 45-76 | |||
E610WN | 750-1250 | forty | seventy five-one hundred thirty |
Spare areas and framework of our roots blower:
Bundle of our Roots Blower
Pack into iron situation, two layer,blower human body and motor in reduced layer, inlet/out silencer and so forth in higher layer
Roots blower pack strategy very same as iron situation, just change to Fumigation Totally free Plywood Scenario
Our manufacturing unit is a skilled company of Roots blowers which has above 20 years’ experience in machinery
production. It is located in Xihu (West Lake) Dis. East CZPT Park, 50 kilometers to the east of ZheJiang provincial
funds— HangZhou. Our organization also has convenient site visitors transportation, as it is 15 kilometers away from
Diaozhen City station of HangZhou-HangZhou expressway, and 30 kilometers absent from East HangZhou station of
ZheJiang -ZheJiang expressway.The major merchandise of our firm is ESR -type Roots Blower. The roots
vacuum pump is a new sort of high-effectiveness roots blower, which is designed independently dependent on the
domestic and foreign sophisticated systems. Numerous patented technologies have been adopted on Roots
Blower, and as a result we have created important effects in power conservation and noise reduction, and so forth.. So considerably, our
business has invested a lot more than thirty,000,000 RMB to introduce such advanced specialist products as
horizontal machining centre, vertical machining centre, two-way CNC surface planer, CNC lathe, CNC milling
device, CNC planer, aircraft grinder, cylindrical grinding machine, and 3 coordinates testing device.
Apart from, we have taken numerous actions to CZPTize the method movement this kind of as working and cooperating
with several scientific research units, schools and universities at house and overseas. We also repeatedly attempt to
soak up and boost the domestic innovative generation systems, so as to advertise the upgrading and
optimization of the item and make the product good quality attain the advanced amount at residence and overseas.
ESR -kind Roots Blower involves a number of sequence these kinds of as 3-leaves Type, Two-leaves Variety and Centrifugal
Type,which can be even more divided to hundreds of kinds. The items are extensively used in sewage treatment,
pneumatic conveying,vacuum packaging, aquaculture, meals processing, electrical energy, petrochemical, cement,
mining and other industries. Our merchandise have this kind of positive aspects as low sound, strength saving, secure good quality,
and lengthy services existence, and so on.. With the income outlets throughout the domestic cash towns, our items sell effectively all
in excess of the region, and have been exported to North America,Russia, Malaysia, Indonesia, Vietnam, South Africa
and some other nations around the world. Possessing got the ISO9001 CZPT CZPT Technique Certification, we have
set up and improved the top quality assurance of the products creating, producing, and set up.
From the method of design, investigation and development to the concluded items, we have got the total
method managed independently, as a result providing the total foundation and reliability ensure for the products steadiness
and durability. Getting a perfect sales community and after-revenue provider, we give our consumers with greater-
high quality and more productive services.All workers of our company sincerely welcome the broad masses of pals to
information, and negotiate organization with us.
Our Roots Blower Workshop
Doosn Horzitonal CZPT Center
The Software of the Roots Blower
Servicing and inspection
(one) Verify all fasteners and finding pins problems whether they are loosening.
(two) Always examine whether or not the leakage phenomenon of the human body.
(3) Pay out consideration to lubrication, volume of grease and noises when managing,
figure out no matter whether it performs underneath the required situations.
(4) CZPT & grease: The lubricant is for medium load industrial equipment oil
(quality 220, kinematic viscosity of 198 ~ 242mm2 / s 40ºC, flash point ≥ 200ºC)
The grease is butter (artificial lithium grease penetration 220-250, fall stage ≥
190ºC). Substitute the lubricant and grease right after first 200 hrs managing, and change
once again soon after a moth working. Afterwards, substitute the lubricant and grease according to the
environment and lubricant (grease) quality propose a suitable substitution for three
months.
(5) Often examine the inlet air filter, cleanse or substitute the filter in time.
(six) Blower overload often not quickly displayed, so shell out consideration to
the intake and exhaust strain, bearing temperature and the recent boost traits
of motor to figure out whether the blower functions generally
(seven) Just before disassembling the blower, the assembling relation and dimensions
need to be recorded or calculated, make marks on factors to make certain the CZPT
specifications right after assembling.
(eight) When freshly device or overhaul, the oil tank must be cleaned before use
and propose replace all grease following eight several hours managing.
Typical failure explanation and troubleshooting
No | Failure | Feasible causes | Elimination techniques |
1 | Friction amongst the impeller |
(one) Impurities on the impeller, resulting in the hole is as well small (two) Gear wear, resulting in a big backlash (three) The gear is not well set, can not maintain the impeller synchronization (4) Bearing use ensuing in clearance growing. |
(1) Take away dust and check whether there is harm areas (two) Adjust the gear hole, substitute the gears if the gear backlash is greater than the common 30% to 50% (3)Re-assemble the gears, keep the taper make contact with region is to 75% (four)Replace the bearing |
2 | Collision amongst impeller and wall, the impeller top and casing |
(one) Set up hole is not proper (two) running force is also high, exceeding the specified value (three) Functioning temperature is also high (four) Casing or base deformation, positioning enthusiast failure (5) Bearing axial spot is not good |
(1) Modify the gap (2) Recognize brings about of overloading, lowered the stress to the specified worth (three) Examine the set up precision and lessen the pipe tension (4) Examine and fix bearings, and to guarantee the clearance (five)Relocation |
3 | Temperature as well large |
(one) Oil in tank is way too a lot, as well thick or too soiled (2) CZPT or silencer is blocked (3)The pressure is higher than the specified price (4)Extreme use of the impeller, big hole (5)Inadequate air flow, indoor temperature is high, ensuing in inlet air’s high temperature (6) The rotating speed is as well reduced,end result in the belt slipping. |
(one)Reduce the oil amount or depend on oil (2)Remove of blocking objects (three)Reducing the force through the blower (four)Repair its clearance (five)Open vents to lessen area temperature (6) Increase speed to stop the belt slipping. |
four | Inadequate flow |
(one) The inlet filter is blocked (two) Impeller wear and the hole raises as well much (3) Belt slipping (4) Huge imports pressure reduction (five) CZPT ventilation leakage |
(1) Clear the filter dust and obstruction (two) Fix the hole (3)Tighten the belt and increase the variety of belts (4)Change the inlet strain to the specified price (five) Check out and restore the pipeline |
five | Oil leaking or oil leaking into the enclosure |
(one)Higher tank place trigger leakage from the discharge port (two) Seal wear, resulting in shaft oil spills (three) The pressure is increased than the specified worth |
(1)Minimize the oil stage (2)Exchange the seals (3)Distinct the air vents, 2mm diameter faucet is fastened in the center chamber, open the faucet under the wall |
six | Abnormal vibration and sounds |
(1)Bearing clearance exceeds the specified benefit or bearing put on (2) The gear backlash is also large, not in a restricted mounted (3) The overseas objects and dust brought on by the impeller and the impeller, the impeller and the housing collision (4) the impeller shaft deformation brought on the collision caused by overload, (five) Friction amongst the impeller and the inlet housing induced by overheating (six) Unbalance of the impeller triggered by fouling or international physique (7) CZPT bolts or other fasteners are loosened |
(1)Replace bearings or bearing seat (two)Reassemble equipment and make certain backlash (3)Cleaning blower, check the scenario is destroyed (four)Examine the back stress, check the wheel and alter gap (5)Examine the filter and back strain, improve the hole between 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. |
seven | Motor overload |
(one)In contrast with the required pressure, the strain variation is massive that the back force or the inlet force is higher (two) When compared with the gear requirements, blower circulation is also big, so its stress boosts (3)Inlet filter is blocked, or outlet pipe is obstructed or blocked (four) Collusion or friction (caught) rotating components (5) The oil degree is as well high (6) Narrow V-belt is overheat, vibration is way too large, or pulley is too tiny |
(one) Reduce the force to the specified benefit (2) Exhaust the surplus gas into the ambiance or lessen the blower speed (3) Remove the obstructions (4)Right away shut down, examine the cause (5) Adjust the oil to the correct degree (six) Verify the belt tension, and changed it with huge diameter pulley. |
Our Services
one. Pre promote service two. Following promote service
a. recommend the suitable model c. online technological assistance,
b. manufacturing facility tour d. complete life spare components and techinical support
Gurantee
twelve months gurantee for our roots blowers