We – EPG Team the greatest couplings and gears manufacturing unit in China with five diverse branches. For far more specifics: Cellular/whatsapp/telegram/Kakao us at: 0086-13083988828 /
We make all kinds of roots blower, centrifugal blower, Our Principal items are as beneath:
Kind |
Diameter |
Price of stream |
Pressure |
ESR-MJ(Intensive Kind) |
Φ50~Φ300mm |
.5~140m³/min |
9.8KPa~98.8Kpa |
ESR(Normal Variety) |
Φ50~Φ350mm |
.5~140m³/min |
nine.8KPa~seventy eight.4Kpa |
ESR-H(Large-strain Sort) |
Φ50~Φ350mm |
.7~160m³/min |
58.8KPa~ninety eight.8Kpa |
ESR-V(Vacuum Pump) |
Φ50~Φ350mm |
.five~160m³/min |
nine.8KPa~fifty three.3Kpa |
EL Collection |
Φ200~Φ600mm |
twenty.three~750m³/min |
9.8KPa~58.8Kpa |
Multistage Centrifugal Blower or C-Collection |
Φ250~Φ500mm |
50~500m³/min |
nine.8KPa~98Kpa |
ERR-ERG Variety |
Φ250~Φ500mm |
120~420m³/min |
nine.8KPa~ninety eight.8Kpa |
The doing work theory of the three-blade roots blower: two a few-lobed rotors are arranged in the cavity, and the
suction port and the discharge port are opened on equally 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 gasoline in the chamber is pushed to obtain the
purpose of blowing.
Function of our roots blower:
1. Big adjustment of the air quantity
2. Low Sound
3. High performance
4. Reduced vitality cosumption
5. Extended time daily life
six. Trustworthy working, straightforward servicing,little footprint
The parameters of our roots blower:
Variety |
Ratary Pace (r/min) |
Strain Increase (Kpa) |
Potential (m/min) |
Shaft Electricity (Kw) |
Motor |
Device Maximn Excess weight(Kg) |
Electricity (Kw) |
ESR-50 |
1100-2120 |
nine.eight-fifty eight.8 |
.sixty five-2.fifty eight |
.three-three.54 |
.75-4 |
128-158 |
ESR-sixty five |
1100-2130 |
9.eight-fifty eight.eight |
.94-3.sixty six |
.38-4.forty six |
.seventy five-five.five |
a hundred and fifty five-185 |
ESR-80 |
1140-1900 |
9.eight-58.eight |
two.34-five.forty three |
one.04-seven.42 |
2.2-eleven |
155-277 |
ESR-one hundred |
1060-1980 |
nine.8-fifty eight.eight |
4.fifty seven-nine.05 |
1.35-12.fifteen |
three-15 |
309-377 |
ESR-one hundred twenty five |
980-1850 |
9.eight-fifty eight.8 |
5.35-twelve.four |
one.sixty five-5.19 |
5.5-eighteen.five |
408-451 |
ESR-125C |
970-1830 |
nine.eight-fifty eight.8 |
7.5-seventeen.fifty seven |
3.2-eighteen.5 |
four-22 |
408-451 |
ESR-one hundred fifty |
810-1730 |
nine.eight-fifty eight.eight |
10.37-27.15 |
3.eighty four-forty.eighty two |
seven.5-forty five |
688-848 |
ESR-one hundred seventy five |
970-1520 |
9.eight-fifty eight.8 |
19.65-36.sixty five |
7.2-45.ninety five |
11-55 |
980-1080 |
ESR-200B |
740-1450 |
9.8-58.eight |
19.65-forty four.eight |
ten.fifteen-60.44 |
fifteen-seventy five |
1272-1546 |
ESR-two hundred |
810-1480 |
nine.eight-58.8 |
27.sixty five-59.two |
8.05-eighty,twelve |
fifteen-ninety |
1272-1546 |
ESR-250B |
1100-1480 |
nine.eight-fifty eight.8 |
54.seventy seven-77.fifty five |
19.97-90.ninety seven |
30-one hundred ten |
1490-2454 |
ESR-250 |
990-1480 |
nine.eight-58.8 |
61.four-97.52 |
twenty.one-117.three |
thirty-132 |
1490-2454 |
ESR-300 |
990-1480 |
9.8-58.eight |
87.one-138.one |
26.4-167.8 |
37-185 |
3326-3446 |
ESR-350 |
730-1480 |
9.8-fifty eight.eight |
seventy eight.forty one-177.31 |
|
fifty five-250 |
|
ESR-50H |
1230-2120 |
63.7-98 |
.45-two.02 |
2.05-six.12 |
3-seven.5 |
one hundred sixty–a hundred and seventy |
ESR-65H |
1240-2130 |
63.7-98 |
.seventy eight-two.53 |
2.89-7.fifty five |
4-11 |
198-230 |
ESR-80H |
1140-1900 |
sixty three.7-ninety eight |
one.eighty two-4.fifty five |
four.09-ten.1 |
5.five-15 |
316-326 |
ESR-100H |
1060-1980 |
63.7-ninety eight |
2.sixty five-eight.06 |
6.36-seventeen.2 |
7.5-22 |
398-459 |
ESR-125H |
980-1850 |
63.seven-ninety eight |
4.sixty four-eleven.23 |
8.92-24.2 |
eleven-30 |
544-630 |
ESR-150H |
810-1730 |
sixty three.seven-ninety eight |
9.fifty three-twenty five.seventy six |
seventeen.16-65 |
eighteen.5-75 |
752-1571 |
ESR-200H |
810-1480 |
63.7-ninety eight |
twenty five.34-fifty six.ninety two |
forty two.34-a hundred and twenty |
55-132 |
1426-1934 |
ESR-250H |
990-1480 |
sixty three.7-ninety eight |
58-93.7 |
83.2-205 |
ninety-220 |
2980-3468 |
ESR300H |
990-1480 |
sixty three.seven-98 |
86.nine-134.one |
114.7-270 |
132-280 |
3476-3998 |
ERF-245 |
650-980 |
9.8-ninety eight |
47.5-97.4 |
16-183 |
18.five-two hundred |
3630-3690 |
ERF-250 |
650-980 |
nine.8-98 |
sixty one.6-a hundred and twenty.4 |
19-227 |
22-250 |
4450-4500 |
ERF-290 |
650-980 |
9.8-78.four |
ninety two.three-128 |
22-213 |
30-250 |
4890-4710 |
ERF-295 |
650-980 |
9.eight-seventy eight.4 |
ninety seven.3-152.5 |
23-227 |
thirty-250 |
4890-4880 |
ERF-297 |
650-980 |
nine.8-seventy eight.four |
87.5-167.6 |
26-249 |
30-280 |
5330-5520 |
ERF-300 |
650-980 |
nine.8-seventy eight.4 |
one zero one.5-188.seven |
29-278 |
37-315 |
5330-5520 |
ERF-350 |
650-980 |
9.eight-78.four |
126-224.nine |
34-249 |
45-280 |
5210-6470 |
ERG-300 |
590-730 |
9.eight-ninety eight |
128.3-196 |
38-362 |
forty five-400 |
9440-15710 |
ERG-350 |
590-730 |
9.eight-98 |
159.three-231.six |
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-73.5 |
229.seven-327.8 |
fifty eight-477 |
seventy five-560 |
10600-12230 |
ERG-450 |
590-730 |
nine.eight-73.five |
262.four-366.2 |
64-496 |
seventy five-560 |
10600-12230 |
ERG-five hundred |
590-730 |
9.eight-sixty three.7 |
327.four-452.4 |
78-529 |
ninety-560 |
12790-14620 |
ERF-240-V |
650-980 |
-9.eight- -forty nine |
38.one-seventy eight |
13-seventy six |
eighteen.five-ninety |
3420-3285 |
ERF-245-V |
650-980 |
-nine.8- -forty nine |
forty seven.five-97.4 |
16-95 |
22-one hundred ten |
3425-3360 |
ERF-250-V |
650-980 |
-9.eight- -49 |
63-one hundred twenty |
19-117 |
22-132 |
3910-3830 |
ERF-290-V |
650-980 |
-nine.8- -forty nine |
72.6-one hundred forty four |
22-136 |
30-one hundred sixty |
4415-4270 |
ERF-295-V |
650-980 |
-9.eight- -forty nine |
seventy six.six-152 |
23-145 |
30-one hundred sixty |
4425-4485 |
ERF-297-V |
650-980 |
-nine.8- -49 |
84.three-166.eight |
26-one hundred sixty |
thirty-one hundred eighty |
5000-4980 |
ERF-300-V |
650-980 |
-nine.8- -forty nine |
97-192 |
29-178 |
37-two hundred |
5000-4980 |
ERF-350-V |
650-980 |
-nine.8- -forty nine |
116-225 |
34-209 |
45-250 |
5400-5700 |
ERG-300V |
590-730 |
-nine.8- -forty nine |
133-193 |
38-184 |
45-220 |
7800-9100 |
ERG-350V |
590-730 |
-9.eight- -forty nine |
163-231 |
forty three-216 |
55-250 |
9500-9470 |
ERG-400V |
590-730 |
-9.eight- -forty nine |
199-290 |
fifty two-269 |
75-315 |
9900-10130 |
ERG-445V |
590-730 |
-nine.eight- -forty nine |
224.eight-326.nine |
fifty eight-303 |
75-355 |
9900-10130 |
ERG-450V |
590-730 |
-9.8- -49 |
255-365 |
64-335 |
seventy five-400 |
11230-11300 |
ERG-500V |
590-730 |
-9.eight- -49 |
314-452 |
seventy eight-412 |
132-450 |
13630-13850 |
ERF-245W |
650-980 |
-thirteen.3- -fifty three.three |
fifty three.5-101 |
21.five-102 |
30-a hundred and ten |
3630-3360 |
ERF-250W |
650-980 |
-13.3- -53.three |
sixty nine-127 |
26.5-127 |
30-a hundred and sixty |
3985-4115 |
ERF-290W |
650-980 |
-thirteen.3- -53.three |
eighty two.six-one hundred fifty |
30.five-149 |
37-185 |
4340-4580 |
ERF-295W |
650-980 |
-thirteen.three- -53.three |
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 |
-thirteen.3- -53.3 |
129-230 |
fifty-230 |
75-250 |
5840-5670 |
ERG-300W |
590-730 |
-thirteen.three- -53.3 |
142-197 |
fifty two-201 |
seventy five-220 |
9100-9000 |
ERF-350W |
590-730 |
-13.three- -53.3 |
168-234.4 |
fifty nine-235.five |
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- -53.3 |
244-294.six |
eighty two-331 |
90-four hundred |
11230-11300 |
ERG450W |
590-730 |
-13.3- -fifty three.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 |
one hundred thirty five-355 |
a hundred and sixty-four hundred |
8700-8600 |
ETRF-295 (245,295) |
650-980 |
ninety eight-196 |
eighty.8-139 |
167-439 |
185-500 |
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-400 (three hundred,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 |
560-1000 |
24200-27600 |
ETRF-250W (240,250) |
650-980 |
-53.three–eighty |
72-121 |
seventy five.6-121 |
ninety-one hundred sixty |
6100-6470 |
ETRF-295W (245/295) |
650-980 |
-fifty three.three–eighty |
ninety three.eight-154 |
99.five-186 |
one hundred ten-220 |
7000-6400 |
ETRF-300W (2505/300) |
650-980 |
-fifty three.three–80 |
116-189 |
one hundred fifteen-220 |
132-250 |
7750-7760 |
EL81WD |
580-980 |
9.eight-fifty eight.8 |
54.2-a hundred thirty |
18-151 |
forty five-185 |
3595 |
EL82WDB |
580-980 |
9.eight-58.8 |
72.eight-161 |
22-191 |
45-220 |
3860 |
EL83WDA |
580-980 |
nine.8-fifty eight.9 |
101-213 |
28.five-202 |
forty five-220 |
4300 |
EL84WDA |
580-980 |
nine.eight-fifty eight.eight |
129-267 |
35.4-252 |
45-280 |
4720 |
EL93WDA |
580-730 |
nine.8-49 |
230-329 |
56.four-311 |
75-355 |
7765 |
EL94WDA |
580-730 |
nine.eight-49 |
263-373 |
sixty four-353 |
75-four hundred |
8130 |
EL95WDA |
490-580 |
9.8-58.eight |
308-434 |
eighty one.four-414 |
ninety-450 |
11500 |
EL96WDA |
580 |
fifty eight.8 |
381 |
497 |
560 |
11500 |
E397WN |
one thousand-1650 |
40 |
5-9 |
|
|
|
E408WN |
870-1650 |
40 |
ten-22 |
|
|
|
E517WN |
980-1580 |
forty |
20-thirty |
|
|
|
E520WN |
930-1550 |
forty |
24-forty five |
|
|
|
E607WN |
750-1250 |
forty |
forty five-76 |
|
|
|
E610WN |
750-1250 |
40 |
seventy five-a hundred thirty |
|
|
|
Spare elements and construction of our roots blower:
Package of our Roots Blower
Pack into iron case, two layer,blower body and motor in reduce layer, inlet/out silencer etc in upper layer
Roots blower pack strategy exact same as iron circumstance, just change to Fumigation Free of charge Plywood Scenario
Our manufacturing facility is a professional company of Roots blowers which has more than 20 years’ experience in equipment
producing. It is positioned in Xihu (West Lake) Dis. East Industrial Park, 50 kilometers to the east of Shan EPT provincial
capital— HangZhou. Our company also has handy 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 solution of our organization is ESR -type Roots Blower. The roots
vacuum pump is a new kind of large-performance roots blower, which is produced independently dependent on the
domestic and overseas innovative technologies. A number of patented technologies have been adopted on Roots
Blower, and thus we have created substantial outcomes in strength conservation and noise reduction, etc.. So far, our
company has invested far more than 30,000,000 RMB to introduce these kinds of advanced skilled products as
horizontal machining center, vertical machining heart, two-way CNC surface area planer, CNC lathe, CNC milling
device, CNC planer, plane grinder, cylindrical grinding device, and three coordinates screening machine.
Apart from, we have taken a variety of steps to standardize the approach movement this kind of as operating and cooperating
with many scientific research units, colleges and universities at house and abroad. We also continuously attempt to
take up and boost the domestic superior generation technologies, so as to market the upgrading and
optimization of the item and make the merchandise good quality reach the advanced degree at house and overseas.
ESR -type Roots Blower contains a number of series these kinds of as A few-leaves Variety, Two-leaves Kind and Centrifugal
Type,which can be additional divided to hundreds of types. The products are broadly employed in sewage therapy,
pneumatic conveying,vacuum packaging, aquaculture, foods processing, EPT energy, petrochemical, cement,
mining and other industries. Our products have such rewards as reduced noise, vitality conserving, stable high quality,
and extended provider life, and so forth.. With the product sales outlets throughout the domestic money metropolitan areas, our goods sell properly all
over the region, and have been exported to North The usa,Russia, Malaysia, Indonesia, Vietnam, South Africa
and some other nations. Obtaining received the ISO9001 Intercontinental Good quality System Certification, we have
proven and enhanced the quality assurance of the merchandise planning, manufacturing, and installation.
From the approach of layout, study and growth to the completed goods, we have acquired the total
process controlled independently, hence providing the full foundation and trustworthiness assure for the merchandise balance
and sturdiness. Possessing a perfect revenue community and after-product sales service, we supply our customers with increased-
top quality and much more productive services.All personnel of our company sincerely welcome the broad masses of close friends to
guide, and negotiate business with us.
Our Roots Blower Workshop
Doosn Horzitonal Machine Middle
The Application of the Roots Blower
Maintenance and inspection
(one) Verify all fasteners and finding pins problems regardless of whether they are loosening.
(2) Constantly verify no matter whether the leakage phenomenon of the human body.
(three) Pay interest to lubrication, sum of grease and noises when managing,
figure out whether or not it functions underneath the essential circumstances.
(4) Lubricant & grease: The lubricant is for medium load industrial equipment oil
(quality 220, kinematic viscosity of 198 ~ 242mm2 / s 40ºC, flash position ≥ 200ºC)
The grease is butter (artificial lithium grease penetration 220-250, fall position ≥
190ºC). Substitute the lubricant and grease soon after very first 200 hours managing, and substitute
once more soon after a moth managing. Later on, replace the lubricant and grease in accordance to the
environment and lubricant (grease) top quality propose a ideal EPT for a few
months.
(five) Constantly verify the inlet air filter, clear or substitute the filter in time.
(six) Blower overload at times not immediately exhibited, so pay attention to
the intake and exhaust force, bearing temperature and the existing boost trends
of motor to decide whether the blower functions normally
(seven) Before disassembling the blower, the assembling relation and dimensions
should be recorded or calculated, make marks on elements to make sure the first
requirements right after assembling.
(eight) When freshly device or overhaul, the oil tank ought to be cleaned prior to use
and suggest change all grease after 8 hours working.
Frequent failure reason and troubleshooting
No |
Failure |
Possible motives |
Elimination methods |
1 |
Friction in between the impeller |
(1) Impurities on the impeller, ensuing in the gap is too little (2) Equipment wear, resulting in a massive backlash (3) The gear is not nicely fastened, can not preserve the impeller synchronization (four) Bearing use resulting in clearance rising. |
(one) Take away filth and check out whether or not there is injury parts (two) Alter the equipment hole, exchange the gears if the equipment backlash is greater than the typical 30% to 50% (3)Re-assemble the gears, hold the taper speak to location is to 75% (4)Replace the bearing |
two |
Collision in between impeller and wall, the impeller best and casing |
(one) Installation gap is not appropriate (two) working strain is also higher, exceeding the specified worth (three) Working temperature is too large (4) Casing or base deformation, positioning enthusiast failure (five) Bearing axial spot is not good |
(1) Alter the gap (two) Determine brings about of overloading, decreased the stress to the specified price (three) Check out the installation accuracy and minimize the pipe stress (4) Verify and fix bearings, and to ensure the clearance (five)Relocation |
three |
Temperature too high |
(one) Oil in tank is as well much, also thick or as well filthy (two) Filter or silencer is blocked (three)The strain is increased than the specified price (four)Excessive use of the impeller, massive hole (five)Poor air flow, indoor temperature is large, resulting in inlet air’s higher temperature (six) The rotating speed is too reduced,outcome in the belt slipping. |
(1)Reduce the oil level or count on oil (two)Get rid of of blocking objects (three)Lowering the pressure by means of the blower (4)Restore its clearance (five)Open up vents to reduce space temperature (six) Boost pace to stop the belt slipping. |
four |
Insufficient flow |
(one) The inlet filter is blocked (two) Impeller wear and the gap raises also considerably (three) Belt slipping (four) Large imports pressure loss (5) Pipeline ventilation leakage |
(1) Clean the filter dust and obstruction (2) Repair the gap (three)Tighten the belt and enhance the variety of belts (4)Alter the inlet stress to the specified value (five) Check and repair the pipeline |
5 |
Oil leaking or oil leaking into the enclosure |
(1)Large tank situation cause leakage from the discharge port (2) Seal put on, resulting in shaft oil spills (three) The force is greater than the specified benefit |
(one)Lessen the oil stage (two)Replace the seals (three)Very clear the air vents, 2mm diameter faucet is mounted in the center chamber, open up the faucet underneath the wall |
six |
Abnormal vibration and sound |
(1)Bearing clearance exceeds the specified value or bearing dress in (2) The gear backlash is also big, not in a tight mounted (three) The international objects and dust triggered by the impeller and the impeller, the impeller and the housing collision (4) the impeller shaft deformation triggered the collision induced by overload, (5) Friction amongst the impeller and the inlet housing induced by overheating (6) Unbalance of the impeller triggered by fouling or foreign body (seven) Anchor bolts or other fasteners are loosened |
(1)Exchange bearings or bearing seat (2)Reassemble gear and ensure backlash (three)Cleansing blower, verify the scenario is ruined (4)Check out the again force, verify the wheel and modify gap (five)Examine the filter and back again pressure, increase the gap amongst the impeller inlet and the casing (6)Cleanse the impeller and the casing, to make certain that the impeller clearance work (7) Tighten the anchor bolts and leveling the foundation. |
seven |
Motor overload |
(1)Compared with the essential pressure, the force distinction is big that the back pressure or the inlet stress is higher (2) Compared with the equipment needs, blower circulation is as well large, so its force will increase (three)Inlet filter is blocked, or outlet pipe is obstructed or blocked (4) Collusion or friction (caught) rotating areas (5) The oil stage is too high (six) Slender V-belt is overheat, vibration is as well massive, or pulley is way too little |
(1) Decrease the stress to the specified price (two) Exhaust the extra gas into the ambiance or decrease the blower velocity (3) Get rid of the obstructions (four)Right away shut down, check the reason (five) Modify the oil to the right stage (six) Examine the belt stress, and replaced it with large diameter pulley. |
Our Services
one. Pre promote service two. Soon after market service
a. recommend the ideal model c. on the internet specialized assist,
b. manufacturing unit tour d. total existence spare elements and techinical help
Gurantee
twelve months gurantee for our roots blowers
/ The use of unique products manufacturer’s (OEM) element quantities or trademarks , e.g. CASE® and John Deere® are for reference purposes only and for indicating merchandise use and compatibility. Our organization and the detailed EPT elements contained herein are not sponsored, approved, or created by the OEM. /