We make all kinds of roots blower, centrifugal blower, Our Primary products are as below:
Variety | Diameter | Price of movement | Stress |
ESR-MJ(Intensive Variety) | Φ50~Φ300mm | .5~140m³/min | 9.8KPa~98.8Kpa |
ESR(Normal Kind) | Φ50~Φ350mm | .5~140m³/min | nine.8KPa~78.4Kpa |
ESR-H(High-force Sort) | Φ50~Φ350mm | .7~160m³/min | fifty eight.8KPa~98.8Kpa |
ESR-V(Vacuum Pump) | Φ50~Φ350mm | .five~160m³/min | 9.8KPa~fifty three.3Kpa |
EL Sequence | Φ200~Φ600mm | twenty.3~750m³/min | nine.8KPa~fifty eight.8Kpa |
Multistage Centrifugal Blower or C-Series |
Φ250~Φ500mm | fifty~500m³/min | 9.8KPa~98Kpa |
ERR-ERG Kind | Φ250~Φ500mm | a hundred and twenty~420m³/min | 9.8KPa~98.8Kpa |
The doing work principle of the three-blade roots blower: two 3-lobed rotors are organized in the cavity, and the
suction port and the discharge port are opened on both sides of the cavity. Through 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 accomplish the
objective of blowing.
Characteristic of our roots blower:
1. Large adjustment of the air volume
2. Lower Sounds
3. High effectiveness
four. Low energy cosumption
5. Prolonged time daily life
6. Reputable running, straightforward maintenance,little footprint
The parameters of our roots blower:
Sort | Ratary Velocity (r/min) |
Pressure Increase (Kpa) |
Potential (m/min) |
Shaft Power (Kw) |
Motor | Unit Maximn Weight(Kg) |
Power (Kw) |
||||||
ESR-fifty | 1100-2120 | 9.eight-58.eight | .sixty five-2.58 | .three-three.54 | .75-four | 128-158 |
ESR-sixty five | 1100-2130 | nine.8-58.eight | .ninety four-three.66 | .38-4.forty six | .75-5.5 | one hundred fifty five-185 |
ESR-eighty | 1140-1900 | 9.eight-58.eight | 2.34-5.43 | 1.04-7.forty two | two.two-eleven | 155-277 |
ESR-one hundred | 1060-1980 | nine.8-58.8 | 4.57-9.05 | one.35-12.fifteen | 3-fifteen | 309-377 |
ESR-a hundred twenty five | 980-1850 | nine.eight-58.eight | 5.35-12.four | one.sixty five-5.19 | five.five-eighteen.five | 408-451 |
ESR-125C | 970-1830 | nine.eight-fifty eight.eight | seven.five-17.57 | 3.2-eighteen.five | four-22 | 408-451 |
ESR-one hundred fifty | 810-1730 | nine.eight-58.eight | 10.37-27.fifteen | three.84-40.eighty two | 7.five-forty five | 688-848 |
ESR-one hundred seventy five | 970-1520 | nine.eight-58.eight | 19.sixty five-36.sixty five | seven.two-45.ninety five | eleven-55 | 980-1080 |
ESR-200B | 740-1450 | 9.8-58.8 | 19.sixty five-44.eight | 10.fifteen-60.44 | fifteen-75 | 1272-1546 |
ESR-200 | 810-1480 | nine.8-fifty eight.eight | 27.65-fifty nine.two | 8.05-eighty,12 | 15-90 | 1272-1546 |
ESR-250B | 1100-1480 | nine.8-58.eight | 54.seventy seven-77.55 | 19.97-ninety.ninety seven | 30-a hundred and ten | 1490-2454 |
ESR-250 | 990-1480 | 9.eight-58.eight | 61.four-97.fifty two | twenty.1-117.three | thirty-132 | 1490-2454 |
ESR-300 | 990-1480 | 9.eight-fifty eight.8 | 87.one-138.1 | 26.4-167.eight | 37-185 | 3326-3446 |
ESR-350 | 730-1480 | 9.eight-fifty eight.8 | 78.41-177.31 | 55-250 | ||
ESR-50H | 1230-2120 | sixty three.seven-ninety eight | .45-2.02 | 2.05-6.twelve | three-7.five | a hundred and sixty–a hundred and seventy |
ESR-65H | 1240-2130 | 63.7-ninety eight | .seventy eight-two.fifty three | two.89-seven.fifty five | 4-11 | 198-230 |
ESR-80H | 1140-1900 | 63.7-98 | one.eighty two-four.55 | 4.09-10.one | 5.five-fifteen | 316-326 |
ESR-100H | 1060-1980 | sixty three.7-98 | two.65-8.06 | 6.36-17.two | 7.five-22 | 398-459 |
ESR-125H | 980-1850 | sixty three.seven-98 | 4.64-11.23 | 8.92-24.two | 11-30 | 544-630 |
ESR-150H | 810-1730 | sixty three.seven-ninety eight | nine.53-25.seventy six | seventeen.16-65 | 18.5-75 | 752-1571 |
ESR-200H | 810-1480 | 63.seven-ninety eight | 25.34-56.92 | 42.34-a hundred and twenty | 55-132 | 1426-1934 |
ESR-250H | 990-1480 | 63.seven-ninety eight | 58-ninety three.7 | eighty three.two-205 | ninety-220 | 2980-3468 |
ESR300H | 990-1480 | sixty three.seven-ninety eight | 86.nine-134.1 | 114.7-270 | 132-280 | 3476-3998 |
ERF-245 | 650-980 | 9.eight-98 | 47.5-ninety seven.4 | 16-183 | eighteen.five-200 | 3630-3690 |
ERF-250 | 650-980 | 9.eight-98 | sixty one.6-one hundred twenty.four | 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-78.4 | ninety seven.3-152.5 | 23-227 | 30-250 | 4890-4880 |
ERF-297 | 650-980 | 9.eight-78.4 | 87.5-167.6 | 26-249 | thirty-280 | 5330-5520 |
ERF-three hundred | 650-980 | 9.eight-seventy eight.4 | a hundred and one.5-188.7 | 29-278 | 37-315 | 5330-5520 |
ERF-350 | 650-980 | 9.8-78.four | 126-224.9 | 34-249 | forty five-280 | 5210-6470 |
ERG-300 | 590-730 | nine.eight-98 | 128.three-196 | 38-362 | 45-400 | 9440-15710 |
ERG-350 | 590-730 | nine.eight-98 | 159.three-231.6 | 43-420 | fifty five-450 | 9700-1571 |
ERG-four hundred | 590-730 | 9.8-83.3 | 203.one-290.9 | 52-449 | 75-five hundred | 10090-11390 |
ERG-445 | 590-730 | 9.eight-73.5 | 229.7-327.8 | fifty eight-477 | 75-560 | 10600-12230 |
ERG-450 | 590-730 | 9.8-seventy three.5 | 262.4-366.two | sixty four-496 | seventy five-560 | 10600-12230 |
ERG-five hundred | 590-730 | nine.8-63.seven | 327.four-452.four | 78-529 | 90-560 | 12790-14620 |
ERF-240-V | 650-980 | -9.8- -forty nine | 38.1-78 | 13-76 | 18.5-90 | 3420-3285 |
ERF-245-V | 650-980 | -nine.8- -forty nine | forty seven.5-97.four | sixteen-95 | 22-a hundred and ten | 3425-3360 |
ERF-250-V | 650-980 | -nine.8- -forty nine | sixty three-120 | 19-117 | 22-132 | 3910-3830 |
ERF-290-V | 650-980 | -nine.eight- -49 | 72.6-one hundred forty four | 22-136 | 30-160 | 4415-4270 |
ERF-295-V | 650-980 | -9.8- -49 | 76.six-152 | 23-one hundred forty five | 30-one hundred sixty | 4425-4485 |
ERF-297-V | 650-980 | -9.eight- -49 | eighty four.3-166.8 | 26-160 | thirty-180 | 5000-4980 |
ERF-three hundred-V | 650-980 | -9.eight- -49 | 97-192 | 29-178 | 37-two hundred | 5000-4980 |
ERF-350-V | 650-980 | -nine.8- -49 | 116-225 | 34-209 | forty five-250 | 5400-5700 |
ERG-300V | 590-730 | -nine.eight- -49 | 133-193 | 38-184 | 45-220 | 7800-9100 |
ERG-350V | 590-730 | -nine.8- -49 | 163-231 | forty three-216 | 55-250 | 9500-9470 |
ERG-400V | 590-730 | -9.eight- -49 | 199-290 | 52-269 | seventy five-315 | 9900-10130 |
ERG-445V | 590-730 | -9.8- -forty nine | 224.8-326.nine | 58-303 | seventy five-355 | 9900-10130 |
ERG-450V | 590-730 | -nine.8- -49 | 255-365 | 64-335 | 75-four hundred | 11230-11300 |
ERG-500V | 590-730 | -nine.eight- -49 | 314-452 | 78-412 | 132-450 | 13630-13850 |
ERF-245W | 650-980 | -13.three- -53.three | fifty three.5-101 | 21.5-102 | thirty-a hundred and ten | 3630-3360 |
ERF-250W | 650-980 | -13.3- -fifty three.three | sixty nine-127 | 26.5-127 | thirty-a hundred and sixty | 3985-4115 |
ERF-290W | 650-980 | -13.3- -fifty three.three | eighty two.6-a hundred and fifty | thirty.five-149 | 37-185 | 4340-4580 |
ERF-295W | 650-980 | -thirteen.3- -53.three | 87-158 | 32-158 | 37-185 | 4440-4580 |
ERF-297W | 650-980 | -thirteen.3- -53.3 | ninety five-174 | 36-174 | forty five-200 | 5230-5130 |
ERF-300W | 650-980 | -thirteen.three- -fifty three.3 | 109-195 | forty-193 | 55-220 | 5230-5130 |
ERF-350W | 650-980 | -thirteen.3- -fifty three.three | 129-230 | fifty-230 | 75-250 | 5840-5670 |
ERG-300W | 590-730 | -thirteen.3- -53.3 | 142-197 | fifty two-201 | seventy five-220 | 9100-9000 |
ERF-350W | 590-730 | -13.three- -53.3 | 168-234.4 | 59-235.5 | seventy five-280 | 9500-9600 |
ERG-400W | 590-730 | -thirteen.three- -fifty three.3 | 220-276.6 | 71-292 | 90-315 | 9900-10130 |
ERG-445W | 590-730 | -13.3- -53.3 | 244-294.6 | 82-331 | 90-four hundred | 11230-11300 |
ERG450W | 590-730 | -13.three- -53.3 | 275-368.5 | ninety one-366 | one hundred ten-four hundred | 11230-11300 |
ETRF-250 (240,250) |
650-980 | ninety eight-196 | 64.8-112 | a hundred thirty five-355 | a hundred and sixty-400 | 8700-8600 |
ETRF-295 (245,295) |
650-980 | 98-196 | eighty.8-139 | 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 | 98-137.2 | 124-207 | 241-473 | 280-560 | 10700-11110 |
ETRG-four hundred (300,400) |
590-740 | 98-176.four | 205-273 | 380-773 | 450-900 | 21350-24200 |
ETRG-450 (350,450) |
590-740 | ninety eight-176.four | 263-428 | 476-955 | 560-a thousand | 24200-27600 |
ETRF-250W (240,250) |
650-980 | -53.three–80 | seventy two-121 | 75.six-121 | 90-160 | 6100-6470 |
ETRF-295W (245/295) |
650-980 | -fifty three.3–80 | 93.8-154 | ninety nine.5-186 | a hundred and ten-220 | 7000-6400 |
ETRF-300W (2505/300) |
650-980 | -53.3–80 | 116-189 | one hundred fifteen-220 | 132-250 | 7750-7760 |
EL81WD | 580-980 | nine.eight-fifty eight.8 | 54.two-one hundred thirty | eighteen-151 | forty five-185 | 3595 |
EL82WDB | 580-980 | 9.8-58.8 | 72.eight-161 | 22-191 | 45-220 | 3860 |
EL83WDA | 580-980 | nine.8-58.9 | 101-213 | 28.five-202 | forty five-220 | 4300 |
EL84WDA | 580-980 | nine.eight-58.8 | 129-267 | 35.4-252 | forty five-280 | 4720 |
EL93WDA | 580-730 | 9.eight-forty nine | 230-329 | 56.4-311 | 75-355 | 7765 |
EL94WDA | 580-730 | 9.eight-49 | 263-373 | 64-353 | seventy five-four hundred | 8130 |
EL95WDA | 490-580 | nine.eight-58.eight | 308-434 | eighty one.4-414 | ninety-450 | 11500 |
EL96WDA | 580 | 58.eight | 381 | 497 | 560 | 11500 |
E397WN | a thousand-1650 | 40 | five-9 | |||
E408WN | 870-1650 | 40 | ten-22 | |||
E517WN | 980-1580 | 40 | twenty-30 | |||
E520WN | 930-1550 | 40 | 24-forty five | |||
E607WN | 750-1250 | forty | forty five-seventy six | |||
E610WN | 750-1250 | forty | seventy five-130 |
Spare components and construction of our roots blower:
Package deal of our Roots Blower
Pack into iron case, two layer,blower body and motor in reduce layer, inlet/out silencer and so forth in higher layer
Roots blower pack method identical as iron circumstance, just adjust to Fumigation Free of charge Plywood Case
Our manufacturing facility is a specialist maker of Roots blowers which has in excess of 20 years’ experience in machinery
production. It is found in Xihu (West Lake) Dis. CZPT CZPT Park, fifty kilometers to the east of ZheJiang provincial
capital— HangZhou. Our organization also has practical targeted traffic transportation, as it is 15 kilometers away from
Diaozhen Town station of HangZhou-HangZhou expressway, and 30 kilometers away from CZPT HangZhou station of
ZheJiang -ZheJiang expressway.The major product of our company is ESR -kind Roots Blower. The roots
vacuum pump is a new sort of substantial-efficiency roots blower, which is created independently based mostly on the
domestic and overseas sophisticated systems. A number of patented technologies have been adopted on Roots
Blower, and hence we have made important results in energy conservation and noise reduction, etc.. So considerably, our
company has invested much more than thirty,000,000 RMB to introduce these kinds of advanced specialist products as
horizontal machining heart, vertical machining centre, two-way CNC surface area planer, CNC lathe, CNC milling
machine, CNC planer, airplane grinder, cylindrical grinding machine, and three coordinates testing device.
Aside from, we have taken different actions to CZPTize the approach flow this kind of as operating and cooperating
with numerous scientific research units, faculties and universities at property and abroad. We also continuously consider to
soak up and enhance the domestic innovative creation technologies, so as to market the upgrading and
optimization of the product and make the product top quality reach the innovative amount at residence and abroad.
ESR -sort Roots Blower involves a number of series this sort of as A few-leaves Type, Two-leaves Type and Centrifugal
Kind,which can be additional divided to hundreds of kinds. The products are broadly employed in sewage treatment,
pneumatic conveying,vacuum packaging, aquaculture, meals processing, electrical electricity, petrochemical, cement,
mining and other industries. Our goods have these kinds of rewards as minimal sound, strength saving, steady quality,
and extended services existence, and so on.. With the income outlets throughout the domestic money metropolitan areas, our products promote nicely all
in excess of the nation, and have been exported to North CZPTica,Russia, Malaysia, Indonesia, Vietnam, South Africa
and some other international locations. Having acquired the ISO9001 CZPT CZPT Program Certification, we have
recognized and enhanced the top quality assurance of the merchandise creating, producing, and installation.
From the process of style, analysis and growth to the finished goods, we have received the complete
process managed independently, hence delivering the total basis and dependability guarantee for the goods stability
and toughness. Having a perfect revenue network and soon after-income service, we supply our consumers with larger-
top quality and more efficient support.All workers of our company sincerely welcome the broad masses of pals to
manual, and negotiate enterprise with us.
Our Roots Blower Workshop
Doosn Horzitonal CZPT Heart
The Application of the Roots Blower
Routine maintenance and inspection
(one) Check out all fasteners and finding pins circumstances no matter whether they are loosening.
(two) Often check out no matter whether the leakage phenomenon of the human body.
(three) Spend consideration to lubrication, sum of grease and noises when operating,
figure out no matter whether it operates below 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 level ≥ 200ºC)
The grease is butter (artificial lithium grease penetration 220-250, fall level ≥
190ºC). Exchange the lubricant and grease right after very first two hundred hours working, and substitute
once again following a moth working. Later on, substitute the lubricant and grease in accordance to the
environment and lubricant (grease) good quality propose a suitable substitution for a few
months.
(five) Always examine the inlet air filter, thoroughly clean or change the filter in time.
(6) Blower overload at times not immediately exhibited, so pay out interest to
the consumption and exhaust pressure, bearing temperature and the current enhance traits
of motor to determine regardless of whether the blower operates normally
(7) Prior to disassembling the blower, the assembling relation and proportions
need to be recorded or measured, make marks on factors to make sure the CZPT
specifications following assembling.
(eight) When freshly equipment or overhaul, the oil tank must be cleaned just before use
and propose substitute all grease soon after eight hrs managing.
Widespread failure reason and troubleshooting
No | Failure | Achievable reasons | Elimination approaches |
1 | Friction amongst the impeller |
(1) Impurities on the impeller, ensuing in the gap is as well small (two) Gear wear, resulting in a large backlash (three) The gear is not nicely fixed, can not maintain the impeller synchronization (four) Bearing dress in ensuing in clearance growing. |
(one) Remove dust and verify regardless of whether there is injury areas (two) Modify the gear hole, replace the gears if the gear backlash is increased than the average thirty% to 50% (three)Re-assemble the gears, hold the taper contact spot is to 75% (4)Change the bearing |
2 | Collision among impeller and wall, the impeller best and casing |
(one) Installation hole is not correct (two) operating strain is way too substantial, exceeding the specified worth (three) Functioning temperature is also high (four) Casing or foundation deformation, positioning enthusiast failure (five) Bearing axial spot is not good |
(1) Adjust the hole (2) Determine triggers of overloading, decreased the force to the specified benefit (3) Check the set up precision and reduce the pipe tension (4) Examine and restore bearings, and to ensure the clearance (5)Relocation |
three | Temperature also high |
(one) Oil in tank is as well considerably, way too thick or also soiled (two) CZPT or silencer is blocked (three)The stress is higher than the specified worth (4)Excessive use of the impeller, huge hole (5)Inadequate ventilation, indoor temperature is higher, resulting in inlet air’s substantial temperature (6) The rotating speed is as well lower,end result in the belt slipping. |
(one)Lessen the oil degree or count on oil (2)Remove of blocking objects (three)Reducing the stress through the blower (4)Mend its clearance (five)Open vents to lessen room temperature (six) Improve velocity to avoid the belt slipping. |
four | Inadequate movement |
(1) The inlet filter is blocked (two) Impeller wear and the hole will increase way too a lot (3) Belt slipping (4) Huge imports pressure loss (five) CZPT ventilation leakage |
(one) Thoroughly clean the filter dust and obstruction (two) Fix the gap (3)Tighten the belt and boost the amount of belts (four)Alter the inlet force to the specified worth (five) Verify and fix the pipeline |
five | Oil leaking or oil leaking into the enclosure |
(one)Higher tank situation trigger leakage from the discharge port (two) Seal wear, resulting in shaft oil spills (3) The pressure is higher than the specified benefit |
(one)Decrease the oil degree (2)Substitute the seals (three)Obvious the air vents, 2mm diameter faucet is fixed in the center chamber, open up the faucet under the wall |
6 | Abnormal vibration and sound |
(1)Bearing clearance exceeds the specified benefit or bearing put on (2) The gear backlash is way too huge, not in a limited set (3) The international objects and dust induced by the impeller and the impeller, the impeller and the housing collision (4) the impeller shaft deformation induced the collision caused by overload, (five) Friction between the impeller and the inlet housing triggered by overheating (six) Unbalance of the impeller caused by fouling or international body (7) CZPT bolts or other fasteners are loosened |
(1)Change bearings or bearing seat (two)Reassemble equipment and make sure backlash (three)Cleansing blower, examine the circumstance is ruined (4)Check out the back pressure, examine the wheel and alter hole (five)Check out the filter and back again strain, enhance the hole in between the impeller inlet and the casing (6)Thoroughly clean the impeller and the casing, to make certain that the impeller clearance operate (seven) Tighten the anchor bolts and leveling the base. |
seven | Motor overload |
(1)When compared with the needed force, the strain big difference is large that the again force or the inlet force is high (2) In comparison with the tools needs, blower flow is too big, so its stress raises (3)Inlet filter is blocked, or outlet pipe is obstructed or blocked (four) Collusion or friction (trapped) rotating elements (5) The oil amount is too higher (6) Slim V-belt is overheat, vibration is too massive, or pulley is way too small |
(one) Decrease the force to the specified benefit (2) Exhaust the extra gasoline into the atmosphere or lessen the blower speed (3) Remove the obstructions (four)Quickly shut down, check the purpose (5) Adjust the oil to the right level (6) Check the belt tension, and replaced it with huge diameter pulley. |
Our Support
one. Pre market service 2. Following market service
a. recommend the suited model c. on the internet specialized assist,
b. manufacturing unit tour d. whole life spare areas and techinical assistance
Gurantee
twelve months gurantee for our roots blowers