We – EPG Team the greatest couplings and gears manufacturing facility in China with 5 various branches. For a lot more specifics: Mobile/whatsapp/telegram/Kakao us at: 0086-13083988828 /

We make all kinds of roots blower, centrifugal blower, Our Primary goods are as below:

Type	Diameter	Rate of movement	Pressure
ESR-MJ(Intensive Sort)	Φ50~Φ300mm	.five~140m³/min	9.8KPa~ninety eight.8Kpa
ESR(Normal Variety)	Φ50~Φ350mm	.five~140m³/min	nine.8KPa~seventy eight.4Kpa
ESR-H(Higher-pressure Type)	Φ50~Φ350mm	.seven~160m³/min	58.8KPa~ninety eight.8Kpa
ESR-V(Vacuum Pump)	Φ50~Φ350mm	.five~160m³/min	nine.8KPa~fifty three.3Kpa
EL Sequence	Φ200~Φ600mm	20.three~750m³/min	nine.8KPa~fifty eight.8Kpa
Multistage Centrifugal Blower or C-Collection	Φ250~Φ500mm	fifty~500m³/min	nine.8KPa~98Kpa
ERR-ERG Kind	Φ250~Φ500mm	one hundred twenty~420m³/min	9.8KPa~98.8Kpa

The doing work theory of the three-blade roots blower: two a few-lobed rotors are organized in the cavity, and the
suction port and the discharge port are opened on each 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 obtain the
purpose of blowing.

Feature of our roots blower:
one. Big adjustment of the air volume
two. Lower Noise
3. Higher performance
four. Lower power cosumption
5. Extended time daily life
six. Trustworthy working, straightforward routine maintenance,small footprint

The parameters of our roots blower:

Kind	Ratary Speed (r/min)	Pressure Increase (Kpa)	Capability (m/min)	Shaft Electrical power (Kw)	Motor	Unit Maximn Bodyweight(Kg)
					Electricity (Kw)
ESR-50	1100-2120	9.8-fifty eight.8	.65-two.fifty eight	.3-three.fifty four	.seventy five-4	128-158
ESR-sixty five	1100-2130	nine.8-58.eight	.94-three.sixty six	.38-four.forty six	.75-five.five	one hundred fifty five-185
ESR-80	1140-1900	nine.8-58.eight	2.34-5.forty three	1.04-7.42	two.two-eleven	one hundred fifty five-277
ESR-one hundred	1060-1980	nine.8-fifty eight.eight	four.fifty seven-nine.05	1.35-12.15	three-fifteen	309-377
ESR-a hundred twenty five	980-1850	9.eight-fifty eight.8	5.35-twelve.four	one.65-five.19	five.five-eighteen.5	408-451
ESR-125C	970-1830	9.8-58.eight	seven.five-seventeen.fifty seven	3.2-eighteen.five	four-22	408-451
ESR-a hundred and fifty	810-1730	nine.8-fifty eight.8	ten.37-27.fifteen	3.eighty four-forty.82	seven.five-forty five	688-848
ESR-a hundred seventy five	970-1520	nine.eight-fifty eight.eight	19.sixty five-36.65	seven.2-45.ninety five	eleven-fifty five	980-1080
ESR-200B	740-1450	9.eight-fifty eight.8	19.65-forty four.8	10.15-60.forty four	fifteen-75	1272-1546
ESR-200	810-1480	9.eight-fifty eight.eight	27.65-59.two	8.05-eighty,12	fifteen-90	1272-1546
ESR-250B	1100-1480	9.eight-fifty eight.eight	54.77-seventy seven.55	19.97-90.97	30-one hundred ten	1490-2454
ESR-250	990-1480	9.eight-58.eight	61.4-ninety seven.fifty two	twenty.one-117.3	30-132	1490-2454
ESR-300	990-1480	nine.eight-58.8	87.1-138.one	26.four-167.eight	37-185	3326-3446
ESR-350	730-1480	nine.eight-58.eight	seventy eight.forty one-177.31		55-250
ESR-50H	1230-2120	sixty three.7-98	.45-two.02	2.05-6.twelve	3-7.five	one hundred sixty–one hundred seventy
ESR-65H	1240-2130	sixty three.7-98	.seventy eight-2.fifty three	2.89-seven.fifty five	4-11	198-230
ESR-80H	1140-1900	sixty three.7-ninety eight	one.eighty two-4.55	four.09-ten.one	5.five-15	316-326
ESR-100H	1060-1980	63.seven-98	two.sixty five-eight.06	6.36-17.2	seven.five-22	398-459
ESR-125H	980-1850	63.seven-ninety eight	4.64-11.23	eight.ninety two-24.2	eleven-thirty	544-630
ESR-150H	810-1730	sixty three.7-98	nine.fifty three-25.76	seventeen.16-sixty five	18.5-75	752-1571
ESR-200H	810-1480	sixty three.7-ninety eight	25.34-fifty six.ninety two	forty two.34-120	fifty five-132	1426-1934
ESR-250H	990-1480	63.7-ninety eight	58-ninety three.7	eighty three.2-205	90-220	2980-3468
ESR300H	990-1480	sixty three.seven-98	86.9-134.1	114.7-270	132-280	3476-3998
ERF-245	650-980	9.8-98	forty seven.5-ninety seven.4	16-183	eighteen.5-200	3630-3690
ERF-250	650-980	nine.eight-98	sixty one.6-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.four	97.3-152.5	23-227	30-250	4890-4880
ERF-297	650-980	9.eight-78.4	87.five-167.six	26-249	thirty-280	5330-5520
ERF-three hundred	650-980	9.8-seventy eight.four	a hundred and one.5-188.seven	29-278	37-315	5330-5520
ERF-350	650-980	nine.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	45-four hundred	9440-15710
ERG-350	590-730	9.8-98	159.three-231.six	forty three-420	fifty five-450	9700-1571
ERG-four hundred	590-730	nine.eight-83.three	203.1-290.9	fifty two-449	seventy five-five hundred	10090-11390
ERG-445	590-730	nine.eight-73.five	229.seven-327.eight	fifty eight-477	75-560	10600-12230
ERG-450	590-730	nine.8-73.five	262.four-366.2	sixty four-496	seventy five-560	10600-12230
ERG-five hundred	590-730	9.8-63.seven	327.four-452.4	78-529	ninety-560	12790-14620
ERF-240-V	650-980	-nine.eight- -49	38.1-seventy eight	13-76	18.5-90	3420-3285
ERF-245-V	650-980	-nine.eight- -49	47.five-97.4	sixteen-ninety five	22-a hundred and ten	3425-3360
ERF-250-V	650-980	-9.8- -49	63-a hundred and twenty	19-117	22-132	3910-3830
ERF-290-V	650-980	-9.8- -49	seventy two.six-144	22-136	thirty-a hundred and sixty	4415-4270
ERF-295-V	650-980	-nine.8- -49	76.six-152	23-one hundred forty five	thirty-one hundred sixty	4425-4485
ERF-297-V	650-980	-9.eight- -forty nine	eighty four.three-166.8	26-one hundred sixty	30-one hundred eighty	5000-4980
ERF-300-V	650-980	-nine.8- -forty nine	ninety seven-192	29-178	37-200	5000-4980
ERF-350-V	650-980	-9.8- -forty nine	116-225	34-209	forty five-250	5400-5700
ERG-300V	590-730	-9.eight- -49	133-193	38-184	45-220	7800-9100
ERG-350V	590-730	-nine.eight- -49	163-231	forty three-216	fifty five-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.eight- -forty nine	224.eight-326.9	58-303	75-355	9900-10130
ERG-450V	590-730	-9.8- -49	255-365	64-335	75-400	11230-11300
ERG-500V	590-730	-nine.8- -forty nine	314-452	78-412	132-450	13630-13850
ERF-245W	650-980	-thirteen.3- -fifty three.3	fifty three.5-a hundred and one	21.five-102	thirty-a hundred and ten	3630-3360
ERF-250W	650-980	-thirteen.3- -fifty three.3	69-127	26.5-127	30-a hundred and sixty	3985-4115
ERF-290W	650-980	-13.three- -fifty three.3	eighty two.6-150	thirty.5-149	37-185	4340-4580
ERF-295W	650-980	-thirteen.three- -fifty three.3	87-158	32-158	37-185	4440-4580
ERF-297W	650-980	-thirteen.3- -fifty three.3	ninety five-174	36-174	forty five-two hundred	5230-5130
ERF-300W	650-980	-13.3- -fifty three.three	109-195	40-193	fifty five-220	5230-5130
ERF-350W	650-980	-thirteen.three- -53.three	129-230	fifty-230	seventy five-250	5840-5670
ERG-300W	590-730	-thirteen.three- -53.three	142-197	52-201	seventy five-220	9100-9000
ERF-350W	590-730	-thirteen.three- -53.three	168-234.4	59-235.5	75-280	9500-9600
ERG-400W	590-730	-thirteen.3- -53.three	220-276.6	71-292	90-315	9900-10130
ERG-445W	590-730	-13.3- -fifty three.3	244-294.6	82-331	90-four hundred	11230-11300
ERG450W	590-730	-thirteen.3- -53.3	275-368.five	91-366	a hundred and ten-400	11230-11300
ETRF-250 (240,250)	650-980	ninety eight-196	64.eight-112	a hundred thirty five-355	a hundred and sixty-four hundred	8700-8600
ETRF-295 (245,295)	650-980	98-196	80.eight-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	98-137.2	124-207	241-473	280-560	10700-11110
ETRG-four hundred (300,400)	590-740	ninety eight-176.4	205-273	380-773	450-900	21350-24200
ETRG-450 (350,450)	590-740	98-176.four	263-428	476-955	560-a thousand	24200-27600
ETRF-250W (240,250)	650-980	-53.three–80	72-121	seventy five.6-121	ninety-one hundred sixty	6100-6470
ETRF-295W (245/295)	650-980	-fifty three.3–80	93.8-154	99.5-186	a hundred and ten-220	7000-6400
ETRF-300W (2505/300)	650-980	-fifty three.3–80	116-189	one hundred fifteen-220	132-250	7750-7760
EL81WD	580-980	nine.8-58.8	54.2-130	eighteen-151	forty five-185	3595
EL82WDB	580-980	9.eight-58.8	seventy two.eight-161	22-191	45-220	3860
EL83WDA	580-980	9.eight-fifty eight.9	one zero one-213	28.five-202	45-220	4300
EL84WDA	580-980	9.eight-fifty eight.8	129-267	35.4-252	45-280	4720
EL93WDA	580-730	9.eight-forty nine	230-329	fifty six.4-311	seventy five-355	7765
EL94WDA	580-730	9.eight-forty nine	263-373	sixty four-353	seventy five-four hundred	8130
EL95WDA	490-580	9.8-fifty eight.8	308-434	81.four-414	ninety-450	11500
EL96WDA	580	fifty eight.eight	381	497	560	11500
E397WN	one thousand-1650	forty	5-nine
E408WN	870-1650	40	10-22
E517WN	980-1580	40	20-thirty
E520WN	930-1550	40	24-45
E607WN	750-1250	40	45-76
E610WN	750-1250	40	75-130

Spare parts and construction of our roots blower:

Bundle of our Roots Blower

Pack into iron circumstance, two layer,blower body and motor in reduced layer, inlet/out silencer and many others in higher layer

Roots blower pack technique same as iron circumstance, just adjust to Fumigation Cost-free Plywood Situation

Our factory is a professional manufacturer of Roots blowers which has in excess of 20 years’ experience in equipment
production. It is located in Xihu (West Lake) Dis. East Industrial Park, fifty kilometers to the east of Shan EPT provincial
money— HangZhou. Our business also has convenient visitors transportation, as it is fifteen kilometers absent from
Diaozhen City station of HangZhou-HangZhou expressway, and thirty kilometers away from East HangZhou station of
ZheJiang -ZheJiang expressway.The top item of our firm is ESR -type Roots Blower. The roots
vacuum pump is a new type of large-effectiveness roots blower, which is developed independently dependent on the
domestic and overseas advanced systems. Numerous patented technologies have been adopted on Roots
Blower, and thus we have manufactured considerable outcomes in power conservation and noise reduction, etc.. So considerably, our
organization has invested more than thirty,000,000 RMB to introduce such sophisticated professional products as
horizontal machining centre, vertical machining center, two-way CNC floor planer, CNC lathe, CNC milling
equipment, CNC planer, airplane grinder, cylindrical grinding equipment, and a few coordinates screening equipment.
Besides, we have taken a variety of actions to standardize the procedure stream these kinds of as working and cooperating
with a lot of scientific research units, schools and universities at home and overseas. We also constantly try out to
take in and enhance the domestic sophisticated generation technologies, so as to encourage the upgrading and
optimization of the product and make the solution top quality attain the advanced stage at home and overseas.
ESR -kind Roots Blower includes a number of collection these kinds of as A few-leaves Sort, Two-leaves Kind and Centrifugal
Type,which can be even more divided to hundreds of varieties. The merchandise are commonly employed in sewage therapy,
pneumatic conveying,vacuum packaging, aquaculture, food processing, EPT electricity, petrochemical, cement,
mining and other industries. Our products have this kind of advantages as reduced sounds, energy preserving, steady quality,
and long service life, and many others.. With the product sales outlets throughout the domestic money cities, our products sell well all
over the place, and have been exported to North America,Russia, Malaysia, Indonesia, Vietnam, South Africa
and some other international locations. Getting acquired the ISO9001 International High quality Program Certification, we have
established and improved the quality assurance of the items creating, production, and installation.
From the process of design and style, study and development to the finished products, we have received the total
process controlled independently, therefore supplying the complete basis and trustworthiness assure for the items security
and longevity. Obtaining a perfect sales community and following-sales service, we supply our customers with higher-
quality and far more efficient support.All workers of our organization sincerely welcome the wide masses of buddies to
information, and negotiate company with us.

Our Roots Blower Workshop

         Doosn Horzitonal Device Center

The Application of the Roots Blower

Maintenance and inspection
(one) Verify all fasteners and finding pins circumstances no matter whether they are loosening.
(two) Usually examine regardless of whether the leakage phenomenon of the body.
(3) Pay attention to lubrication, sum of grease and noises when working,
decide whether or not it performs under the essential 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 (artificial lithium grease penetration 220-250, drop position ≥
190ºC). Replace the lubricant and grease soon after first 200 hrs operating, and exchange
once more after a moth working. Afterwards, substitute the lubricant and grease in accordance to the
setting and lubricant (grease) good quality suggest a suited EPT for 3
months.
(five) Always check out the inlet air filter, thoroughly clean or exchange the filter in time.
(6) Blower overload at times not instantly exhibited, so shell out focus to
the intake and exhaust strain, bearing temperature and the current increase traits
of motor to decide no matter whether the blower operates usually
(seven) Ahead of disassembling the blower, the assembling relation and proportions
should be recorded or measured, make marks on factors to make sure the first
demands right after assembling.
(8) When freshly machine or overhaul, the oil tank ought to be cleaned ahead of use
and propose exchange all grease after eight several hours working.

Frequent failure reason and troubleshooting

No	Failure	Attainable motives	Elimination techniques
1	Friction in between the impeller	(1) Impurities on the impeller, ensuing in the hole is also modest (two) Equipment put on, ensuing in a massive backlash (three) The equipment is not properly fastened, can not keep the impeller synchronization (four) Bearing use ensuing in clearance growing.	(one) Remove dirt and examine whether there is injury elements (two) Modify the equipment hole, change the gears if the equipment backlash is greater than the regular thirty% to fifty% (three)Re-assemble the gears, preserve the taper make contact with spot is to 75% (four)Exchange the bearing
two	Collision amongst impeller and wall, the impeller leading and casing	(1) Set up gap is not correct (2) working strain is way too high, exceeding the specified worth (three) Working temperature is way too high (4) Casing or foundation deformation, positioning fan failure (5) Bearing axial area is not good	(1) Alter the gap (2) Recognize causes of overloading, diminished the stress to the specified benefit (3) Check the installation precision and lessen the pipe stress (four) Check out and mend bearings, and to make certain the clearance (5)Relocation
three	Temperature as well substantial	(one) Oil in tank is as well a lot, way too thick or as well filthy (2) Filter or silencer is blocked (3)The strain is greater than the specified benefit (4)Too much use of the impeller, huge gap (five)Inadequate ventilation, indoor temperature is large, resulting in inlet air’s substantial temperature (6) The rotating speed is also reduced,outcome in the belt slipping.	(1)Minimize the oil level or count on oil (2)Get rid of of blocking objects (three)Minimizing the force through the blower (four)Repair its clearance (five)Open up vents to reduce place temperature (6) Improve pace to prevent the belt slipping.
four	Inadequate flow	(one) The inlet filter is blocked (two) Impeller dress in and the gap boosts as well significantly (3) Belt slipping (4) Huge imports strain loss (five) Pipeline ventilation leakage	(one) Clear the filter dust and obstruction (two) Restore the gap (3)Tighten the belt and increase the amount of belts (four)Adjust the inlet strain to the specified benefit (5) Check and repair the pipeline
five	Oil leaking or oil leaking into the enclosure	(1)Higher tank place trigger leakage from the discharge port (two) Seal put on, resulting in shaft oil spills (three) The stress is higher than the specified value	(one)Lessen the oil level (2)Exchange the seals (three)Distinct the air vents, 2mm diameter faucet is fixed in the middle chamber, open up the faucet under the wall
six	Irregular vibration and sounds	(1)Bearing clearance exceeds the specified value or bearing put on (two) The gear backlash is way too large, not in a restricted fastened (3) The foreign objects and dust caused by the impeller and the impeller, the impeller and the housing collision (four) the impeller shaft deformation triggered the collision induced by overload, (5) Friction in between the impeller and the inlet housing caused by overheating (six) Unbalance of the impeller brought on by fouling or foreign entire body (seven) Anchor bolts or other fasteners are loosened	(one)Replace bearings or bearing seat (two)Reassemble equipment and ensure backlash (3)Cleansing blower, verify the scenario is destroyed (four)Examine the back stress, check the wheel and modify hole (5)Verify the filter and again force, enhance the hole amongst the impeller inlet and the casing (6)Thoroughly clean the impeller and the casing, to guarantee that the impeller clearance perform (7) Tighten the anchor bolts and leveling the base.
7	Motor overload	(one)Compared with the necessary stress, the strain variation is big that the again stress or the inlet force is substantial (2) In comparison with the gear requirements, blower circulation is also massive, so its strain increases (3)Inlet filter is blocked, or outlet pipe is obstructed or blocked (four) Collusion or friction (trapped) rotating components (5) The oil degree is as well high (six) Narrow V-belt is overheat, vibration is way too big, or pulley is as well modest	(one) Minimize the stress to the specified benefit (2) Exhaust the surplus gas into the environment or lessen the blower velocity (three) Get rid of the obstructions (4)Immediately shut down, verify the reason (5) Alter the oil to the correct level (six) Verify the belt stress, and replaced it with big diameter pulley.

Our Provider

1. Pre promote service                                                                              2. Following sell service                                          
a. recommend the appropriate model                                             c. on the internet specialized assist,                                                                                   
b. manufacturing unit tour                                                                              d. complete existence spare elements and techinical assist

Gurantee

12 months gurantee for our roots blowers
 

/ The use of original products manufacturer’s (OEM) element quantities or logos , e.g. CASE® and John Deere® are for reference needs only and for indicating merchandise use and compatibility. Our firm and the listed EPT components contained herein are not sponsored, accredited, or produced by the OEM. /