We – EPG Team the greatest couplings and gears factory in China with 5 different branches. For far more details: Mobile/whatsapp/telegram/Kakao us at: 0086-13083988828 /
We make all types of roots blower, centrifugal blower, Our Main products are as beneath:
Kind |
Diameter |
Charge of flow |
Force |
ESR-MJ(Intensive Sort) |
Φ50~Φ300mm |
.five~140m³/min |
9.8KPa~ninety eight.8Kpa |
ESR(Normal Sort) |
Φ50~Φ350mm |
.5~140m³/min |
nine.8KPa~78.4Kpa |
ESR-H(Higher-pressure Kind) |
Φ50~Φ350mm |
.7~160m³/min |
58.8KPa~ninety eight.8Kpa |
ESR-V(Vacuum Pump) |
Φ50~Φ350mm |
.five~160m³/min |
9.8KPa~53.3Kpa |
EL Collection |
Φ200~Φ600mm |
20.3~750m³/min |
9.8KPa~fifty eight.8Kpa |
Multistage Centrifugal Blower or C-Sequence |
Φ250~Φ500mm |
fifty~500m³/min |
9.8KPa~98Kpa |
ERR-ERG Kind |
Φ250~Φ500mm |
a hundred and twenty~420m³/min |
nine.8KPa~98.8Kpa |
The working principle of the a few-blade roots blower: two three-lobed rotors are arranged in the cavity, and the
suction port and the discharge port are opened on each sides of the cavity. Via the action of a pair of
synchronous gears, the two rotors rotate in opposite instructions 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 achieve the
function of blowing.
Attribute of our roots blower:
one. Large adjustment of the air quantity
two. Reduced Sounds
3. Substantial effectiveness
4. Lower power cosumption
five. Long time lifestyle
six. Dependable managing, easy servicing,modest footprint
The parameters of our roots blower:
Kind |
Ratary Velocity (r/min) |
Force Increase (Kpa) |
Ability (m/min) |
Shaft Energy (Kw) |
Motor |
Unit Maximn Fat(Kg) |
Power (Kw) |
ESR-50 |
1100-2120 |
nine.8-fifty eight.8 |
.sixty five-2.fifty eight |
.three-3.fifty four |
.seventy five-4 |
128-158 |
ESR-65 |
1100-2130 |
nine.eight-fifty eight.eight |
.94-3.66 |
.38-four.forty six |
.seventy five-five.5 |
one hundred fifty five-185 |
ESR-eighty |
1140-1900 |
nine.eight-fifty eight.eight |
two.34-five.forty three |
one.04-7.forty two |
2.two-eleven |
a hundred and fifty five-277 |
ESR-100 |
1060-1980 |
nine.eight-fifty eight.8 |
four.fifty seven-nine.05 |
one.35-twelve.15 |
3-fifteen |
309-377 |
ESR-125 |
980-1850 |
9.eight-fifty eight.eight |
5.35-twelve.four |
1.65-five.19 |
five.5-eighteen.5 |
408-451 |
ESR-125C |
970-1830 |
9.eight-58.eight |
seven.five-17.57 |
3.two-eighteen.five |
four-22 |
408-451 |
ESR-one hundred fifty |
810-1730 |
9.eight-58.8 |
ten.37-27.fifteen |
3.84-40.82 |
7.five-forty five |
688-848 |
ESR-a hundred seventy five |
970-1520 |
nine.eight-58.eight |
19.sixty five-36.65 |
7.2-forty five.ninety five |
eleven-fifty five |
980-1080 |
ESR-200B |
740-1450 |
9.eight-fifty eight.8 |
19.65-44.eight |
10.fifteen-60.forty four |
fifteen-75 |
1272-1546 |
ESR-200 |
810-1480 |
nine.eight-fifty eight.eight |
27.sixty five-59.two |
8.05-80,12 |
fifteen-ninety |
1272-1546 |
ESR-250B |
1100-1480 |
9.8-58.8 |
54.seventy seven-77.fifty five |
19.97-90.97 |
30-110 |
1490-2454 |
ESR-250 |
990-1480 |
9.8-58.eight |
61.4-ninety seven.52 |
20.1-117.three |
thirty-132 |
1490-2454 |
ESR-300 |
990-1480 |
nine.8-fifty eight.8 |
87.one-138.1 |
26.4-167.eight |
37-185 |
3326-3446 |
ESR-350 |
730-1480 |
9.eight-fifty eight.eight |
78.forty one-177.31 |
|
55-250 |
|
ESR-50H |
1230-2120 |
63.7-ninety eight |
.45-two.02 |
2.05-six.twelve |
3-7.5 |
160–170 |
ESR-65H |
1240-2130 |
63.seven-98 |
.seventy eight-2.fifty three |
two.89-seven.55 |
four-eleven |
198-230 |
ESR-80H |
1140-1900 |
sixty three.seven-98 |
one.eighty two-4.55 |
four.09-10.1 |
five.5-fifteen |
316-326 |
ESR-100H |
1060-1980 |
63.seven-98 |
2.65-8.06 |
six.36-17.two |
7.5-22 |
398-459 |
ESR-125H |
980-1850 |
sixty three.seven-98 |
four.64-11.23 |
8.92-24.two |
eleven-thirty |
544-630 |
ESR-150H |
810-1730 |
sixty three.seven-98 |
nine.fifty three-25.seventy six |
17.sixteen-sixty five |
eighteen.five-seventy five |
752-1571 |
ESR-200H |
810-1480 |
sixty three.seven-ninety eight |
25.34-56.ninety two |
forty two.34-one hundred twenty |
55-132 |
1426-1934 |
ESR-250H |
990-1480 |
63.seven-ninety eight |
58-ninety three.seven |
eighty three.2-205 |
90-220 |
2980-3468 |
ESR300H |
990-1480 |
63.7-98 |
86.9-134.1 |
114.7-270 |
132-280 |
3476-3998 |
ERF-245 |
650-980 |
9.8-98 |
forty seven.5-97.four |
sixteen-183 |
18.five-two hundred |
3630-3690 |
ERF-250 |
650-980 |
9.8-ninety eight |
sixty one.six-one hundred twenty.four |
19-227 |
22-250 |
4450-4500 |
ERF-290 |
650-980 |
9.8-seventy eight.four |
92.three-128 |
22-213 |
30-250 |
4890-4710 |
ERF-295 |
650-980 |
9.eight-seventy eight.4 |
97.three-152.five |
23-227 |
thirty-250 |
4890-4880 |
ERF-297 |
650-980 |
nine.8-seventy eight.four |
87.5-167.6 |
26-249 |
thirty-280 |
5330-5520 |
ERF-three hundred |
650-980 |
nine.eight-78.four |
101.five-188.7 |
29-278 |
37-315 |
5330-5520 |
ERF-350 |
650-980 |
nine.eight-78.4 |
126-224.9 |
34-249 |
45-280 |
5210-6470 |
ERG-300 |
590-730 |
9.8-ninety eight |
128.three-196 |
38-362 |
forty five-400 |
9440-15710 |
ERG-350 |
590-730 |
nine.eight-98 |
159.3-231.6 |
43-420 |
fifty five-450 |
9700-1571 |
ERG-four hundred |
590-730 |
9.8-83.three |
203.one-290.nine |
52-449 |
seventy five-five hundred |
10090-11390 |
ERG-445 |
590-730 |
nine.eight-73.five |
229.7-327.eight |
fifty eight-477 |
seventy five-560 |
10600-12230 |
ERG-450 |
590-730 |
9.eight-73.five |
262.4-366.two |
64-496 |
seventy five-560 |
10600-12230 |
ERG-500 |
590-730 |
9.8-63.7 |
327.4-452.four |
78-529 |
90-560 |
12790-14620 |
ERF-240-V |
650-980 |
-nine.8- -49 |
38.1-seventy eight |
thirteen-seventy six |
eighteen.five-ninety |
3420-3285 |
ERF-245-V |
650-980 |
-9.eight- -49 |
forty seven.five-ninety seven.four |
sixteen-95 |
22-110 |
3425-3360 |
ERF-250-V |
650-980 |
-9.eight- -forty nine |
63-a hundred and twenty |
19-117 |
22-132 |
3910-3830 |
ERF-290-V |
650-980 |
-9.8- -49 |
72.six-144 |
22-136 |
thirty-160 |
4415-4270 |
ERF-295-V |
650-980 |
-nine.8- -49 |
seventy six.6-152 |
23-one hundred forty five |
30-a hundred and sixty |
4425-4485 |
ERF-297-V |
650-980 |
-9.eight- -forty nine |
84.three-166.eight |
26-160 |
30-a hundred and eighty |
5000-4980 |
ERF-300-V |
650-980 |
-nine.eight- -49 |
ninety seven-192 |
29-178 |
37-200 |
5000-4980 |
ERF-350-V |
650-980 |
-nine.eight- -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 |
-9.8- -49 |
163-231 |
43-216 |
fifty five-250 |
9500-9470 |
ERG-400V |
590-730 |
-9.eight- -49 |
199-290 |
52-269 |
75-315 |
9900-10130 |
ERG-445V |
590-730 |
-9.8- -forty nine |
224.eight-326.nine |
58-303 |
75-355 |
9900-10130 |
ERG-450V |
590-730 |
-nine.8- -49 |
255-365 |
64-335 |
seventy five-400 |
11230-11300 |
ERG-500V |
590-730 |
-nine.8- -forty nine |
314-452 |
seventy eight-412 |
132-450 |
13630-13850 |
ERF-245W |
650-980 |
-13.3- -53.three |
fifty three.five-one hundred and one |
21.5-102 |
30-a hundred and ten |
3630-3360 |
ERF-250W |
650-980 |
-thirteen.three- -53.3 |
sixty nine-127 |
26.five-127 |
thirty-160 |
3985-4115 |
ERF-290W |
650-980 |
-thirteen.three- -53.3 |
eighty two.six-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.three- -53.3 |
ninety five-174 |
36-174 |
forty five-200 |
5230-5130 |
ERF-300W |
650-980 |
-13.three- -53.3 |
109-195 |
40-193 |
55-220 |
5230-5130 |
ERF-350W |
650-980 |
-13.three- -fifty three.3 |
129-230 |
fifty-230 |
seventy five-250 |
5840-5670 |
ERG-300W |
590-730 |
-13.3- -53.3 |
142-197 |
52-201 |
75-220 |
9100-9000 |
ERF-350W |
590-730 |
-thirteen.three- -53.three |
168-234.4 |
fifty nine-235.5 |
seventy five-280 |
9500-9600 |
ERG-400W |
590-730 |
-13.3- -53.3 |
220-276.six |
71-292 |
ninety-315 |
9900-10130 |
ERG-445W |
590-730 |
-thirteen.3- -53.three |
244-294.6 |
82-331 |
ninety-four hundred |
11230-11300 |
ERG450W |
590-730 |
-13.3- -fifty three.3 |
275-368.five |
ninety one-366 |
one hundred ten-four hundred |
11230-11300 |
ETRF-250 (240,250) |
650-980 |
98-196 |
64.eight-112 |
one hundred thirty five-355 |
160-four hundred |
8700-8600 |
ETRF-295 (245,295) |
650-980 |
ninety eight-196 |
eighty.8-139 |
167-439 |
185-five hundred |
9200-9100 |
ETRF-three hundred (245,295) |
650-980 |
ninety eight-176.four |
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-400 (three hundred,400) |
590-740 |
ninety eight-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-a thousand |
24200-27600 |
ETRF-250W (240,250) |
650-980 |
-fifty three.three–eighty |
seventy two-121 |
75.six-121 |
ninety-160 |
6100-6470 |
ETRF-295W (245/295) |
650-980 |
-fifty three.three–80 |
93.8-154 |
99.five-186 |
110-220 |
7000-6400 |
ETRF-300W (2505/300) |
650-980 |
-fifty three.3–eighty |
116-189 |
a hundred and fifteen-220 |
132-250 |
7750-7760 |
EL81WD |
580-980 |
nine.eight-fifty eight.eight |
54.two-a hundred thirty |
eighteen-151 |
forty five-185 |
3595 |
EL82WDB |
580-980 |
9.eight-fifty eight.8 |
seventy two.eight-161 |
22-191 |
forty five-220 |
3860 |
EL83WDA |
580-980 |
9.eight-fifty eight.nine |
101-213 |
28.5-202 |
45-220 |
4300 |
EL84WDA |
580-980 |
nine.8-fifty eight.eight |
129-267 |
35.4-252 |
forty five-280 |
4720 |
EL93WDA |
580-730 |
nine.8-forty nine |
230-329 |
fifty six.4-311 |
75-355 |
7765 |
EL94WDA |
580-730 |
9.8-49 |
263-373 |
64-353 |
75-400 |
8130 |
EL95WDA |
490-580 |
9.eight-fifty eight.eight |
308-434 |
81.four-414 |
ninety-450 |
11500 |
EL96WDA |
580 |
fifty eight.8 |
381 |
497 |
560 |
11500 |
E397WN |
a thousand-1650 |
forty |
5-nine |
|
|
|
E408WN |
870-1650 |
40 |
ten-22 |
|
|
|
E517WN |
980-1580 |
forty |
20-thirty |
|
|
|
E520WN |
930-1550 |
40 |
24-forty five |
|
|
|
E607WN |
750-1250 |
forty |
45-seventy six |
|
|
|
E610WN |
750-1250 |
40 |
75-one hundred thirty |
|
|
|
Spare components and framework of our roots blower:
Bundle of our Roots Blower
Pack into iron situation, two layer,blower body and motor in lower layer, inlet/out silencer and many others in upper layer
Roots blower pack technique same as iron situation, just change to Fumigation Totally free Plywood Situation
Our manufacturing unit is a professional company of Roots blowers which has over twenty years’ experience in equipment
manufacturing. It is found in Xihu (West Lake) Dis. East Industrial Park, 50 kilometers to the east of Shan EPT provincial
money— HangZhou. Our company also has handy targeted traffic transportation, as it is 15 kilometers away from
Diaozhen City station of HangZhou-HangZhou expressway, and thirty kilometers absent from East HangZhou station of
ZheJiang -ZheJiang expressway.The top merchandise of our firm is ESR -sort Roots Blower. The roots
vacuum pump is a new kind of large-performance roots blower, which is developed independently dependent on the
domestic and overseas advanced technologies. A number of patented technologies have been adopted on Roots
Blower, and hence we have produced considerable results in vitality conservation and noise reduction, and so on.. So considerably, our
company has invested more than 30,000,000 RMB to introduce this sort of advanced skilled products as
horizontal machining middle, vertical machining heart, two-way CNC surface planer, CNC lathe, CNC milling
equipment, CNC planer, airplane grinder, cylindrical grinding device, and 3 coordinates tests equipment.
In addition to, we have taken different steps to standardize the method flow this sort of as working and cooperating
with several scientific research units, colleges and universities at home and overseas. We also repeatedly attempt to
take up and enhance the domestic innovative production technologies, so as to promote the upgrading and
optimization of the merchandise and make the merchandise quality achieve the advanced degree at house and overseas.
ESR -type Roots Blower involves many collection these kinds of as Three-leaves Type, Two-leaves Type and Centrifugal
Sort,which can be further divided to hundreds of kinds. The merchandise are broadly utilized in sewage treatment method,
pneumatic conveying,vacuum packaging, aquaculture, foodstuff processing, EPT power, petrochemical, cement,
mining and other industries. Our products have this kind of advantages as lower sound, vitality saving, stable good quality,
and lengthy service life, and so forth.. With the income outlets throughout the domestic funds metropolitan areas, our goods market nicely all
more than the nation, and have been exported to North The usa,Russia, Malaysia, Indonesia, Vietnam, South Africa
and some other countries. Getting got the ISO9001 International Good quality Technique Certification, we have
recognized and enhanced the high quality assurance of the products designing, production, and installation.
From the process of design and style, investigation and advancement to the finished products, we have received the whole
procedure controlled independently, therefore supplying the entire foundation and dependability guarantee for the goods security
and sturdiness. Possessing a perfect sales community and following-revenue support, we offer our buyers with larger-
high quality and far more effective services.All workers of our firm sincerely welcome the wide masses of buddies to
guide, and negotiate enterprise with us.
Our Roots Blower Workshop
Doosn Horzitonal Equipment Centre
The Software of the Roots Blower
Servicing and inspection
(one) Examine all fasteners and locating pins circumstances no matter whether they are loosening.
(2) Often examine regardless of whether the leakage phenomenon of the body.
(3) Shell out interest to lubrication, sum of grease and noises when operating,
figure out regardless of whether it operates below the required circumstances.
(four) 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 position ≥
190ºC). Replace the lubricant and grease soon after very first 200 hrs running, and replace
yet again soon after a moth managing. Later, substitute the lubricant and grease in accordance to the
setting and lubricant (grease) quality suggest a suited EPT for three
months.
(5) Usually verify the inlet air filter, thoroughly clean or change the filter in time.
(six) Blower overload occasionally not quickly shown, so shell out attention to
the intake and exhaust pressure, bearing temperature and the existing increase traits
of motor to determine whether or not the blower functions normally
(7) Before disassembling the blower, the assembling relation and dimensions
must be recorded or calculated, make marks on parts to make sure the original
specifications after assembling.
(8) When freshly machine or overhaul, the oil tank ought to be cleaned just before use
and suggest substitute all grease soon after 8 hrs managing.
Common failure cause and troubleshooting
No |
Failure |
Possible factors |
Elimination approaches |
1 |
Friction between the impeller |
(one) Impurities on the impeller, resulting in the hole is too little (2) Equipment dress in, ensuing in a huge backlash (three) The gear is not well fixed, can not keep the impeller synchronization (4) Bearing put on resulting in clearance rising. |
(one) Remove dust and examine whether there is hurt areas (2) Alter the gear hole, exchange the gears if the gear backlash is better than the common 30% to 50% (3)Re-assemble the gears, keep the taper contact region is to 75% (four)Exchange the bearing |
2 |
Collision amongst impeller and wall, the impeller top and casing |
(one) Installation gap is not correct (two) operating pressure is way too high, exceeding the specified value (three) Operating temperature is way too substantial (4) Casing or base deformation, positioning fan failure (five) Bearing axial place is not very good |
(one) Adjust the hole (2) Recognize leads to of overloading, decreased the force to the specified worth (3) Check the set up accuracy and lessen the pipe tension (four) Check out and fix bearings, and to make sure the clearance (5)Relocation |
3 |
Temperature too large |
(1) Oil in tank is too much, as well thick or as well dirty (2) Filter or silencer is blocked (three)The stress is higher than the specified worth (four)Excessive dress in of the impeller, large hole (5)Inadequate air flow, indoor temperature is high, resulting in inlet air’s higher temperature (six) The rotating speed is way too lower,result in the belt slipping. |
(one)Reduce the oil degree or depend on oil (2)Remove of blocking objects (three)Minimizing the pressure by way of the blower (4)Mend its clearance (5)Open up vents to lessen space temperature (6) Improve velocity to avoid the belt slipping. |
4 |
Insufficient circulation |
(1) The inlet filter is blocked (2) Impeller wear and the hole will increase too much (three) Belt slipping (4) Large imports stress decline (5) Pipeline ventilation leakage |
(one) Cleanse the filter dust and obstruction (two) Restore the hole (three)Tighten the belt and enhance the quantity of belts (four)Modify the inlet force to the specified value (5) Check out and mend the pipeline |
five |
Oil leaking or oil leaking into the enclosure |
(1)Large tank placement cause leakage from the discharge port (2) Seal wear, resulting in shaft oil spills (three) The stress is higher than the specified worth |
(one)Lessen the oil amount (2)Exchange the seals (3)Very clear the air vents, 2mm diameter faucet is fastened in the middle chamber, open up the faucet below the wall |
6 |
Abnormal vibration and noise |
(one)Bearing clearance exceeds the specified value or bearing use (2) The gear backlash is as well huge, not in a tight fixed (3) The overseas objects and dust induced 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 in between the impeller and the inlet housing brought on by overheating (six) Unbalance of the impeller triggered by fouling or foreign physique (7) Anchor bolts or other fasteners are loosened |
(one)Change bearings or bearing seat (2)Reassemble gear and make sure backlash (3)Cleansing blower, check out the circumstance is destroyed (four)Examine the back strain, examine the wheel and change hole (five)Verify the filter and back again force, enhance the gap in between the impeller inlet and the casing (six)Thoroughly clean the impeller and the casing, to make certain that the impeller clearance function (7) Tighten the anchor bolts and leveling the base. |
7 |
Motor overload |
(1)In contrast with the essential strain, the strain variation is large that the back stress or the inlet pressure is substantial (2) In comparison with the tools specifications, blower movement is also huge, so its pressure boosts (3)Inlet filter is blocked, or outlet pipe is obstructed or blocked (four) Collusion or friction (trapped) rotating components (5) The oil amount is also large (6) Slender V-belt is overheat, vibration is as well huge, or pulley is as well little |
(1) Reduce the strain to the specified worth (2) Exhaust the extra gas into the atmosphere or lessen the blower pace (three) Eliminate the obstructions (4)Right away shut down, check the explanation (5) Adjust the oil to the appropriate amount (6) Check the belt rigidity, and replaced it with big diameter pulley. |
Our Support
1. Pre sell service two. Soon after offer service
a. recommend the ideal model c. on the web technical assist,
b. manufacturing facility tour d. total daily life spare elements and techinical help
Gurantee
twelve months gurantee for our roots blowers
/ The use of authentic tools manufacturer’s (OEM) element figures or emblems , e.g. CASE® and John Deere® are for reference functions only and for indicating solution use and compatibility. Our organization and the listed EPT elements contained herein are not sponsored, accredited, or created by the OEM. /