We make all types of roots blower, centrifugal blower, Our Main items are as under:
Type | Diameter | Fee of circulation | Pressure |
ESR-MJ(Intensive Variety) | Φ50~Φ300mm | .5~140m³/min | 9.8KPa~98.8Kpa |
ESR(Normal Sort) | Φ50~Φ350mm | .five~140m³/min | nine.8KPa~78.4Kpa |
ESR-H(Higher-stress Kind) | Φ50~Φ350mm | .7~160m³/min | fifty eight.8KPa~ninety eight.8Kpa |
ESR-V(Vacuum Pump) | Φ50~Φ350mm | .5~160m³/min | nine.8KPa~fifty three.3Kpa |
EL Collection | Φ200~Φ600mm | 20.three~750m³/min | nine.8KPa~fifty eight.8Kpa |
Multistage Centrifugal Blower or C-Collection |
Φ250~Φ500mm | 50~500m³/min | 9.8KPa~98Kpa |
ERR-ERG Sort | Φ250~Φ500mm | one hundred twenty~420m³/min | 9.8KPa~ninety eight.8Kpa |
The doing work principle of the 3-blade roots blower: two 3-lobed rotors are arranged in the cavity, and the
suction port and the discharge port are opened on both sides of the cavity. By means of the action of a pair of
synchronous gears, the two rotors rotate in reverse instructions 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
objective of blowing.
Attribute of our roots blower:
one. Huge adjustment of the air quantity
2. Reduced Sound
three. Substantial effectiveness
4. Reduced energy cosumption
five. Prolonged time daily life
six. Dependable running, easy upkeep,tiny footprint
The parameters of our roots blower:
Sort | Ratary Pace (r/min) |
Pressure Increase (Kpa) |
Potential (m/min) |
Shaft Electricity (Kw) |
Motor | Unit Maximn Excess weight(Kg) |
Electrical power (Kw) |
||||||
ESR-fifty | 1100-2120 | 9.8-58.eight | .65-two.fifty eight | .three-three.54 | .75-four | 128-158 |
ESR-sixty five | 1100-2130 | nine.eight-fifty eight.8 | .ninety four-three.sixty six | .38-4.forty six | .75-five.5 | one hundred fifty five-185 |
ESR-80 | 1140-1900 | 9.eight-fifty eight.8 | 2.34-5.43 | one.04-seven.forty two | two.2-11 | one hundred fifty five-277 |
ESR-100 | 1060-1980 | nine.eight-58.8 | four.fifty seven-nine.05 | one.35-twelve.fifteen | three-fifteen | 309-377 |
ESR-125 | 980-1850 | nine.8-fifty eight.eight | 5.35-12.four | one.65-five.19 | five.five-eighteen.5 | 408-451 |
ESR-125C | 970-1830 | 9.eight-58.8 | seven.5-seventeen.fifty seven | 3.two-eighteen.5 | 4-22 | 408-451 |
ESR-a hundred and fifty | 810-1730 | nine.eight-58.eight | ten.37-27.15 | 3.84-40.82 | seven.five-forty five | 688-848 |
ESR-175 | 970-1520 | nine.eight-fifty eight.eight | 19.65-36.sixty five | seven.2-45.ninety five | 11-fifty five | 980-1080 |
ESR-200B | 740-1450 | 9.8-fifty eight.eight | 19.65-44.eight | ten.15-sixty.44 | 15-seventy five | 1272-1546 |
ESR-200 | 810-1480 | nine.8-fifty eight.eight | 27.65-fifty nine.two | eight.05-eighty,12 | fifteen-ninety | 1272-1546 |
ESR-250B | 1100-1480 | nine.eight-fifty eight.eight | 54.77-77.fifty five | 19.97-90.97 | 30-one hundred ten | 1490-2454 |
ESR-250 | 990-1480 | nine.eight-fifty eight.8 | 61.four-ninety seven.52 | 20.one-117.3 | 30-132 | 1490-2454 |
ESR-300 | 990-1480 | 9.eight-58.eight | 87.1-138.one | 26.4-167.8 | 37-185 | 3326-3446 |
ESR-350 | 730-1480 | 9.8-58.eight | seventy eight.41-177.31 | fifty five-250 | ||
ESR-50H | 1230-2120 | sixty three.7-98 | .45-2.02 | two.05-6.12 | three-seven.5 | 160–one hundred seventy |
ESR-65H | 1240-2130 | sixty three.seven-ninety eight | .78-2.53 | 2.89-seven.55 | 4-eleven | 198-230 |
ESR-80H | 1140-1900 | sixty three.7-98 | 1.82-four.fifty five | 4.09-10.one | 5.five-15 | 316-326 |
ESR-100H | 1060-1980 | sixty three.7-98 | two.sixty five-eight.06 | 6.36-seventeen.2 | seven.five-22 | 398-459 |
ESR-125H | 980-1850 | 63.seven-ninety eight | four.64-11.23 | 8.92-24.two | eleven-30 | 544-630 |
ESR-150H | 810-1730 | 63.7-98 | 9.fifty three-25.76 | 17.sixteen-65 | eighteen.five-75 | 752-1571 |
ESR-200H | 810-1480 | sixty three.7-ninety eight | 25.34-fifty six.92 | forty two.34-a hundred and twenty | 55-132 | 1426-1934 |
ESR-250H | 990-1480 | 63.seven-98 | 58-93.7 | eighty three.2-205 | 90-220 | 2980-3468 |
ESR300H | 990-1480 | 63.seven-ninety eight | 86.9-134.1 | 114.7-270 | 132-280 | 3476-3998 |
ERF-245 | 650-980 | 9.8-ninety eight | 47.five-97.four | 16-183 | 18.five-two hundred | 3630-3690 |
ERF-250 | 650-980 | nine.eight-ninety eight | 61.6-120.4 | 19-227 | 22-250 | 4450-4500 |
ERF-290 | 650-980 | 9.eight-seventy eight.4 | 92.3-128 | 22-213 | thirty-250 | 4890-4710 |
ERF-295 | 650-980 | nine.8-seventy eight.4 | ninety seven.3-152.5 | 23-227 | 30-250 | 4890-4880 |
ERF-297 | 650-980 | 9.eight-78.four | 87.5-167.6 | 26-249 | thirty-280 | 5330-5520 |
ERF-three hundred | 650-980 | nine.eight-78.4 | one zero one.5-188.seven | 29-278 | 37-315 | 5330-5520 |
ERF-350 | 650-980 | 9.eight-seventy eight.four | 126-224.9 | 34-249 | forty five-280 | 5210-6470 |
ERG-300 | 590-730 | nine.8-98 | 128.three-196 | 38-362 | forty five-four hundred | 9440-15710 |
ERG-350 | 590-730 | 9.eight-98 | 159.three-231.six | forty three-420 | fifty five-450 | 9700-1571 |
ERG-400 | 590-730 | 9.eight-eighty three.3 | 203.one-290.nine | fifty two-449 | seventy five-five hundred | 10090-11390 |
ERG-445 | 590-730 | 9.8-seventy three.5 | 229.seven-327.8 | fifty eight-477 | 75-560 | 10600-12230 |
ERG-450 | 590-730 | nine.8-73.five | 262.four-366.2 | 64-496 | seventy five-560 | 10600-12230 |
ERG-500 | 590-730 | nine.8-sixty three.7 | 327.four-452.4 | seventy eight-529 | 90-560 | 12790-14620 |
ERF-240-V | 650-980 | -9.8- -49 | 38.one-seventy eight | thirteen-seventy six | 18.five-90 | 3420-3285 |
ERF-245-V | 650-980 | -9.eight- -49 | forty seven.5-97.four | sixteen-ninety five | 22-a hundred and ten | 3425-3360 |
ERF-250-V | 650-980 | -nine.8- -forty nine | sixty three-one hundred twenty | 19-117 | 22-132 | 3910-3830 |
ERF-290-V | 650-980 | -9.eight- -49 | 72.six-144 | 22-136 | 30-160 | 4415-4270 |
ERF-295-V | 650-980 | -9.eight- -49 | 76.6-152 | 23-145 | 30-160 | 4425-4485 |
ERF-297-V | 650-980 | -nine.8- -forty nine | eighty four.3-166.eight | 26-160 | thirty-one hundred eighty | 5000-4980 |
ERF-300-V | 650-980 | -9.eight- -49 | 97-192 | 29-178 | 37-200 | 5000-4980 |
ERF-350-V | 650-980 | -nine.8- -49 | 116-225 | 34-209 | forty five-250 | 5400-5700 |
ERG-300V | 590-730 | -9.eight- -forty nine | 133-193 | 38-184 | 45-220 | 7800-9100 |
ERG-350V | 590-730 | -nine.eight- -forty nine | 163-231 | 43-216 | 55-250 | 9500-9470 |
ERG-400V | 590-730 | -nine.8- -forty nine | 199-290 | 52-269 | 75-315 | 9900-10130 |
ERG-445V | 590-730 | -9.eight- -forty nine | 224.eight-326.9 | 58-303 | seventy five-355 | 9900-10130 |
ERG-450V | 590-730 | -nine.eight- -49 | 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 | -13.three- -fifty three.three | fifty three.five-101 | 21.five-102 | thirty-110 | 3630-3360 |
ERF-250W | 650-980 | -thirteen.three- -53.3 | sixty nine-127 | 26.5-127 | 30-160 | 3985-4115 |
ERF-290W | 650-980 | -thirteen.three- -fifty three.three | 82.six-one hundred fifty | 30.five-149 | 37-185 | 4340-4580 |
ERF-295W | 650-980 | -thirteen.three- -53.3 | 87-158 | 32-158 | 37-185 | 4440-4580 |
ERF-297W | 650-980 | -thirteen.3- -fifty three.3 | 95-174 | 36-174 | 45-200 | 5230-5130 |
ERF-300W | 650-980 | -thirteen.3- -fifty three.3 | 109-195 | forty-193 | fifty five-220 | 5230-5130 |
ERF-350W | 650-980 | -13.three- -53.three | 129-230 | 50-230 | 75-250 | 5840-5670 |
ERG-300W | 590-730 | -13.3- -fifty three.three | 142-197 | fifty two-201 | 75-220 | 9100-9000 |
ERF-350W | 590-730 | -13.3- -53.3 | 168-234.4 | fifty nine-235.five | 75-280 | 9500-9600 |
ERG-400W | 590-730 | -thirteen.three- -fifty three.three | 220-276.6 | seventy one-292 | ninety-315 | 9900-10130 |
ERG-445W | 590-730 | -thirteen.three- -fifty three.three | 244-294.six | 82-331 | 90-four hundred | 11230-11300 |
ERG450W | 590-730 | -thirteen.3- -fifty three.3 | 275-368.five | ninety one-366 | 110-400 | 11230-11300 |
ETRF-250 (240,250) |
650-980 | ninety eight-196 | 64.eight-112 | one hundred thirty five-355 | one hundred sixty-four hundred | 8700-8600 |
ETRF-295 (245,295) |
650-980 | 98-196 | eighty.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-four hundred (300,400) |
590-740 | ninety eight-176.four | 205-273 | 380-773 | 450-900 | 21350-24200 |
ETRG-450 (350,450) |
590-740 | 98-176.4 | 263-428 | 476-955 | 560-1000 | 24200-27600 |
ETRF-250W (240,250) |
650-980 | -fifty three.3–eighty | seventy two-121 | 75.6-121 | ninety-160 | 6100-6470 |
ETRF-295W (245/295) |
650-980 | -fifty three.3–80 | 93.eight-154 | 99.5-186 | a hundred and ten-220 | 7000-6400 |
ETRF-300W (2505/three hundred) |
650-980 | -fifty three.three–80 | 116-189 | 115-220 | 132-250 | 7750-7760 |
EL81WD | 580-980 | nine.eight-58.eight | 54.two-one hundred thirty | 18-151 | forty five-185 | 3595 |
EL82WDB | 580-980 | 9.eight-58.eight | seventy two.eight-161 | 22-191 | 45-220 | 3860 |
EL83WDA | 580-980 | nine.8-58.nine | 101-213 | 28.5-202 | 45-220 | 4300 |
EL84WDA | 580-980 | nine.eight-fifty eight.eight | 129-267 | 35.four-252 | 45-280 | 4720 |
EL93WDA | 580-730 | 9.eight-forty nine | 230-329 | 56.four-311 | 75-355 | 7765 |
EL94WDA | 580-730 | 9.eight-forty nine | 263-373 | 64-353 | 75-400 | 8130 |
EL95WDA | 490-580 | nine.eight-fifty eight.eight | 308-434 | eighty one.4-414 | 90-450 | 11500 |
EL96WDA | 580 | fifty eight.8 | 381 | 497 | 560 | 11500 |
E397WN | a thousand-1650 | 40 | five-nine | |||
E408WN | 870-1650 | 40 | ten-22 | |||
E517WN | 980-1580 | 40 | 20-30 | |||
E520WN | 930-1550 | 40 | 24-45 | |||
E607WN | 750-1250 | forty | 45-seventy six | |||
E610WN | 750-1250 | 40 | seventy five-130 |
Spare elements and composition of our roots blower:
Package deal of our Roots Blower
Pack into iron scenario, two layer,blower entire body and motor in lower layer, inlet/out silencer and many others in upper layer
Roots blower pack method same as iron scenario, just alter to Fumigation Free of charge Plywood Circumstance
Our factory is a professional company of Roots blowers which has over 20 years’ experience in equipment
producing. It is situated in Xihu (West Lake) Dis. CZPT CZPT Park, fifty kilometers to the east of ZheJiang provincial
funds— HangZhou. Our business also has handy visitors transportation, as it is 15 kilometers absent from
Diaozhen City station of HangZhou-HangZhou expressway, and 30 kilometers away from CZPT HangZhou station of
ZheJiang -ZheJiang expressway.The top solution of our organization is ESR -type Roots Blower. The roots
vacuum pump is a new sort of substantial-performance roots blower, which is developed independently dependent on the
domestic and international innovative systems. Many patented technologies have been adopted on Roots
Blower, and as a result we have produced significant outcomes in strength conservation and noise reduction, and so forth.. So considerably, our
organization has invested much more than thirty,000,000 RMB to introduce these kinds of sophisticated skilled tools as
horizontal machining heart, vertical machining centre, two-way CNC area planer, CNC lathe, CNC milling
device, CNC planer, plane grinder, cylindrical grinding device, and a few coordinates tests device.
Aside from, we have taken different steps to CZPTize the approach circulation these kinds of as operating and cooperating
with many scientific research units, faculties and universities at residence and overseas. We also repeatedly attempt to
absorb and enhance the domestic innovative production technologies, so as to encourage the upgrading and
optimization of the solution and make the merchandise quality reach the advanced degree at house and abroad.
ESR -kind Roots Blower contains numerous sequence such as Three-leaves Sort, Two-leaves Sort and Centrifugal
Variety,which can be even more divided to hundreds of versions. The goods are broadly utilized in sewage treatment,
pneumatic conveying,vacuum packaging, aquaculture, foodstuff processing, electrical electrical power, petrochemical, cement,
mining and other industries. Our items have this sort of rewards as lower sound, energy saving, secure quality,
and lengthy support life, and many others.. With the income outlets throughout the domestic funds cities, our goods promote effectively all
above the region, and have been exported to North CZPTica,Russia, Malaysia, Indonesia, Vietnam, South Africa
and some other nations. Getting received the ISO9001 CZPT CZPT Method Certification, we have
recognized and improved the good quality assurance of the merchandise designing, manufacturing, and installation.
From the approach of style, study and improvement to the completed products, we have received the entire
procedure managed independently, therefore supplying the complete foundation and dependability assure for the goods balance
and longevity. Obtaining a perfect revenue community and after-product sales service, we give our clients with higher-
top quality and much more efficient support.All personnel of our company sincerely welcome the wide masses of pals to
manual, and negotiate company with us.
Our Roots Blower Workshop
Doosn Horzitonal CZPT Centre
The Application of the Roots Blower
Maintenance and inspection
(one) Examine all fasteners and finding pins problems whether or not they are loosening.
(two) Usually verify no matter whether the leakage phenomenon of the entire body.
(3) Pay interest to lubrication, amount of grease and noises when running,
figure out no matter whether it works underneath the essential problems.
(four) CZPT & grease: The lubricant is for medium load industrial gear oil
(grade 220, kinematic viscosity of 198 ~ 242mm2 / s 40ºC, flash position ≥ 200ºC)
The grease is butter (artificial lithium grease penetration 220-250, fall stage ≥
190ºC). Replace the lubricant and grease following very first 200 hours working, and change
once more after a moth managing. Afterwards, replace the lubricant and grease according to the
atmosphere and lubricant (grease) top quality suggest a ideal replacement for a few
months.
(5) Always examine the inlet air filter, thoroughly clean or exchange the filter in time.
(six) Blower overload often not instantly exhibited, so pay consideration to
the consumption and exhaust force, bearing temperature and the current enhance trends
of motor to establish no matter whether the blower performs normally
(seven) Ahead of disassembling the blower, the assembling relation and dimensions
must be recorded or measured, make marks on components to make certain the CZPT
requirements following assembling.
(eight) When recently machine or overhaul, the oil tank ought to be cleaned before use
and propose exchange all grease following eight several hours working.
Frequent failure reason and troubleshooting
No | Failure | Attainable reasons | Elimination strategies |
1 | Friction between the impeller |
(1) Impurities on the impeller, ensuing in the gap is as well small (2) Equipment dress in, resulting in a large backlash (3) The gear is not effectively fastened, can not preserve the impeller synchronization (four) Bearing wear resulting in clearance growing. |
(1) Remove dust and check out whether or not there is harm elements (two) Adjust the gear hole, change the gears if the gear backlash is better than the regular 30% to 50% (3)Re-assemble the gears, preserve the taper make contact with spot is to 75% (4)Change the bearing |
two | Collision among impeller and wall, the impeller prime and casing |
(1) Set up gap is not right (2) operating strain is as well large, exceeding the specified worth (three) Operating temperature is way too large (4) Casing or foundation deformation, positioning enthusiast failure (five) Bearing axial place is not excellent |
(one) Adjust the gap (2) Discover triggers of overloading, reduced the force to the specified benefit (three) Verify the set up accuracy and decrease the pipe stress (4) Examine and mend bearings, and to guarantee the clearance (5)Relocation |
3 | Temperature as well high |
(one) Oil in tank is way too much, too thick or as well filthy (2) CZPT or silencer is blocked (3)The pressure is larger than the specified value (4)Excessive wear of the impeller, large gap (5)Inadequate air flow, indoor temperature is higher, resulting in inlet air’s higher temperature (6) The rotating velocity is as well lower,consequence in the belt slipping. |
(one)Minimize the oil stage or rely on oil (two)Remove of blocking objects (three)Minimizing the pressure by means of the blower (four)Mend its clearance (five)Open vents to lessen room temperature (6) Increase speed to prevent the belt slipping. |
4 | Inadequate stream |
(one) The inlet filter is blocked (2) Impeller dress in and the hole boosts way too a lot (three) Belt slipping (4) Large imports strain reduction (five) CZPT air flow leakage |
(1) Cleanse the filter dust and obstruction (2) Restore the hole (3)Tighten the belt and improve the quantity of belts (four)Change the inlet pressure to the specified price (5) Verify and fix the pipeline |
5 | Oil leaking or oil leaking into the enclosure |
(one)High tank situation result in leakage from the discharge port (2) Seal wear, resulting in shaft oil spills (3) The pressure is increased than the specified value |
(1)Reduce the oil level (2)Exchange the seals (3)Very clear the air vents, 2mm diameter faucet is mounted in the middle chamber, open up the faucet below the wall |
six | Irregular vibration and sound |
(1)Bearing clearance exceeds the specified value or bearing wear (2) The equipment backlash is as well large, not in a limited mounted (three) The international objects and dust caused by the impeller and the impeller, the impeller and the housing collision (4) the impeller shaft deformation caused the collision brought on by overload, (5) Friction between the impeller and the inlet housing triggered by overheating (six) Unbalance of the impeller brought on by fouling or overseas entire body (7) CZPT bolts or other fasteners are loosened |
(one)Substitute bearings or bearing seat (2)Reassemble equipment and make sure backlash (3)Cleaning blower, verify the scenario is ruined (4)Verify the again force, examine the wheel and modify gap (five)Check out the filter and back again strain, enhance the hole among the impeller inlet and the casing (6)Cleanse the impeller and the casing, to ensure that the impeller clearance perform (7) Tighten the anchor bolts and leveling the base. |
seven | Motor overload |
(one)When compared with the required stress, the pressure variation is big that the back pressure or the inlet pressure is higher (2) Compared with the tools needs, blower flow is as well massive, so its pressure raises (three)Inlet filter is blocked, or outlet pipe is obstructed or blocked (4) Collusion or friction (trapped) rotating parts (5) The oil amount is way too higher (six) Slim V-belt is overheat, vibration is as well massive, or pulley is also small |
(one) Reduce the stress to the specified price (two) Exhaust the surplus fuel into the ambiance or minimize the blower speed (3) Eliminate the obstructions (4)Instantly shut down, check the explanation (5) Modify the oil to the correct level (six) Check out the belt rigidity, and replaced it with big diameter pulley. |
Our Service
one. Pre offer service 2. Right after market service
a. recommend the suited model c. on-line complex assist,
b. manufacturing unit tour d. whole life spare elements and techinical help
Gurantee
twelve months gurantee for our roots blowers