We – EPG Group the most significant couplings and gears manufacturing unit in China with 5 distinct branches. For far more specifics: Cell/whatsapp/telegram/Kakao us at: 0086-13083988828 /

We make all sorts of roots blower, centrifugal blower, Our Primary merchandise are as underneath:

Sort	Diameter	Fee of stream	Strain
ESR-MJ(Intense Type)	Φ50~Φ300mm	.five~140m³/min	9.8KPa~98.8Kpa
ESR(Ordinary Variety)	Φ50~Φ350mm	.five~140m³/min	nine.8KPa~78.4Kpa
ESR-H(High-force Variety)	Φ50~Φ350mm	.7~160m³/min	fifty eight.8KPa~ninety eight.8Kpa
ESR-V(Vacuum Pump)	Φ50~Φ350mm	.five~160m³/min	9.8KPa~53.3Kpa
EL Series	Φ200~Φ600mm	twenty.3~750m³/min	nine.8KPa~58.8Kpa
Multistage Centrifugal Blower or C-Collection	Φ250~Φ500mm	fifty~500m³/min	9.8KPa~98Kpa
ERR-ERG Variety	Φ250~Φ500mm	120~420m³/min	nine.8KPa~98.8Kpa

The working theory of the 3-blade roots blower: two 3-lobed rotors are organized in the cavity, and the
suction port and the discharge port are opened on each sides of the cavity. By means of the motion 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 gas in the chamber is pushed to achieve the
objective of blowing.

Function of our roots blower:
1. Big adjustment of the air volume
two. Minimal Sounds
three. Large performance
4. Lower vitality cosumption
5. Lengthy time existence
six. Trustworthy working, straightforward routine maintenance,little footprint

The parameters of our roots blower:

Variety	Ratary Pace (r/min)	Strain Rise (Kpa)	Capacity (m/min)	Shaft Electricity (Kw)	Motor	Unit Maximn Fat(Kg)
					Electricity (Kw)
ESR-fifty	1100-2120	nine.8-58.8	.sixty five-two.fifty eight	.3-three.fifty four	.75-four	128-158
ESR-65	1100-2130	9.eight-58.8	.94-3.sixty six	.38-4.46	.75-five.five	155-185
ESR-80	1140-1900	nine.8-58.eight	two.34-5.43	1.04-seven.42	2.two-eleven	155-277
ESR-a hundred	1060-1980	nine.eight-58.8	4.57-nine.05	1.35-twelve.fifteen	three-fifteen	309-377
ESR-a hundred twenty five	980-1850	9.8-58.8	five.35-12.four	1.65-five.19	five.5-18.five	408-451
ESR-125C	970-1830	9.8-58.8	7.5-17.57	three.2-18.five	four-22	408-451
ESR-one hundred fifty	810-1730	nine.eight-fifty eight.8	10.37-27.15	three.84-40.82	7.5-45	688-848
ESR-one hundred seventy five	970-1520	9.eight-58.8	19.sixty five-36.sixty five	7.two-forty five.ninety five	eleven-55	980-1080
ESR-200B	740-1450	9.8-fifty eight.eight	19.65-44.8	ten.fifteen-60.forty four	fifteen-seventy five	1272-1546
ESR-200	810-1480	9.8-58.8	27.65-59.2	8.05-80,twelve	fifteen-ninety	1272-1546
ESR-250B	1100-1480	nine.eight-58.eight	54.77-77.55	19.ninety seven-90.97	30-110	1490-2454
ESR-250	990-1480	nine.8-58.8	61.four-97.fifty two	twenty.1-117.3	thirty-132	1490-2454
ESR-three hundred	990-1480	nine.eight-58.8	87.1-138.one	26.four-167.eight	37-185	3326-3446
ESR-350	730-1480	9.8-58.eight	78.forty one-177.31		fifty five-250
ESR-50H	1230-2120	63.7-98	.forty five-two.02	2.05-6.twelve	three-7.five	160–one hundred seventy
ESR-65H	1240-2130	63.seven-98	.seventy eight-two.53	two.89-7.fifty five	4-eleven	198-230
ESR-80H	1140-1900	sixty three.seven-98	1.82-4.55	4.09-ten.1	five.5-15	316-326
ESR-100H	1060-1980	63.seven-98	2.65-8.06	six.36-seventeen.2	7.five-22	398-459
ESR-125H	980-1850	63.seven-ninety eight	four.64-11.23	8.92-24.2	eleven-30	544-630
ESR-150H	810-1730	63.7-98	9.53-twenty five.76	17.16-sixty five	eighteen.5-seventy five	752-1571
ESR-200H	810-1480	63.seven-ninety eight	twenty five.34-fifty six.ninety two	forty two.34-one hundred twenty	fifty five-132	1426-1934
ESR-250H	990-1480	63.7-ninety eight	fifty eight-93.seven	83.two-205	90-220	2980-3468
ESR300H	990-1480	63.seven-ninety eight	86.nine-134.one	114.7-270	132-280	3476-3998
ERF-245	650-980	9.eight-ninety eight	forty seven.5-97.4	16-183	18.five-200	3630-3690
ERF-250	650-980	9.8-ninety eight	sixty one.6-one hundred twenty.4	19-227	22-250	4450-4500
ERF-290	650-980	nine.eight-seventy eight.four	92.three-128	22-213	thirty-250	4890-4710
ERF-295	650-980	nine.8-78.four	ninety seven.3-152.5	23-227	thirty-250	4890-4880
ERF-297	650-980	nine.eight-78.4	87.5-167.6	26-249	30-280	5330-5520
ERF-300	650-980	9.eight-seventy eight.4	101.five-188.seven	29-278	37-315	5330-5520
ERF-350	650-980	9.eight-seventy eight.4	126-224.nine	34-249	forty five-280	5210-6470
ERG-three hundred	590-730	9.8-98	128.three-196	38-362	45-400	9440-15710
ERG-350	590-730	9.eight-ninety eight	159.3-231.six	43-420	fifty five-450	9700-1571
ERG-400	590-730	9.8-eighty three.three	203.one-290.9	fifty two-449	seventy five-500	10090-11390
ERG-445	590-730	nine.eight-seventy three.five	229.seven-327.8	fifty eight-477	75-560	10600-12230
ERG-450	590-730	nine.eight-seventy three.five	262.4-366.two	sixty four-496	75-560	10600-12230
ERG-five hundred	590-730	nine.eight-63.seven	327.4-452.four	78-529	ninety-560	12790-14620
ERF-240-V	650-980	-nine.eight- -49	38.1-78	thirteen-76	eighteen.5-ninety	3420-3285
ERF-245-V	650-980	-9.eight- -49	forty seven.5-97.4	16-95	22-110	3425-3360
ERF-250-V	650-980	-9.eight- -49	63-a hundred and twenty	19-117	22-132	3910-3830
ERF-290-V	650-980	-nine.8- -forty nine	72.6-one hundred forty four	22-136	thirty-160	4415-4270
ERF-295-V	650-980	-nine.8- -forty nine	76.six-152	23-a hundred forty five	30-a hundred and sixty	4425-4485
ERF-297-V	650-980	-nine.8- -forty nine	eighty four.3-166.eight	26-160	thirty-a hundred and eighty	5000-4980
ERF-three hundred-V	650-980	-nine.eight- -forty nine	97-192	29-178	37-200	5000-4980
ERF-350-V	650-980	-9.eight- -forty nine	116-225	34-209	45-250	5400-5700
ERG-300V	590-730	-9.eight- -49	133-193	38-184	forty five-220	7800-9100
ERG-350V	590-730	-nine.8- -49	163-231	forty three-216	55-250	9500-9470
ERG-400V	590-730	-nine.eight- -forty nine	199-290	52-269	seventy five-315	9900-10130
ERG-445V	590-730	-9.eight- -49	224.eight-326.9	fifty eight-303	75-355	9900-10130
ERG-450V	590-730	-9.8- -forty nine	255-365	sixty four-335	75-400	11230-11300
ERG-500V	590-730	-9.8- -49	314-452	seventy eight-412	132-450	13630-13850
ERF-245W	650-980	-thirteen.three- -53.3	fifty three.five-a hundred and one	21.five-102	30-110	3630-3360
ERF-250W	650-980	-thirteen.three- -fifty three.3	69-127	26.five-127	thirty-a hundred and sixty	3985-4115
ERF-290W	650-980	-13.three- -53.three	eighty two.six-one hundred fifty	thirty.five-149	37-185	4340-4580
ERF-295W	650-980	-13.three- -fifty three.3	87-158	32-158	37-185	4440-4580
ERF-297W	650-980	-thirteen.three- -fifty three.3	95-174	36-174	45-200	5230-5130
ERF-300W	650-980	-13.three- -fifty three.three	109-195	40-193	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.three- -fifty three.three	142-197	fifty two-201	seventy five-220	9100-9000
ERF-350W	590-730	-13.3- -53.three	168-234.four	fifty nine-235.five	seventy five-280	9500-9600
ERG-400W	590-730	-13.3- -fifty three.three	220-276.six	seventy one-292	90-315	9900-10130
ERG-445W	590-730	-13.three- -53.three	244-294.6	eighty two-331	ninety-400	11230-11300
ERG450W	590-730	-thirteen.three- -fifty three.three	275-368.five	ninety one-366	one hundred ten-four hundred	11230-11300
ETRF-250 (240,250)	650-980	98-196	sixty four.eight-112	one hundred thirty five-355	one hundred sixty-400	8700-8600
ETRF-295 (245,295)	650-980	ninety eight-196	eighty.eight-139	167-439	185-five hundred	9200-9100
ETRF-300 (245,295)	650-980	98-176.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,four hundred)	590-740	ninety eight-176.4	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	-fifty three.three–eighty	72-121	75.6-121	ninety-one hundred sixty	6100-6470
ETRF-295W (245/295)	650-980	-fifty three.3–80	93.8-154	ninety nine.5-186	one hundred ten-220	7000-6400
ETRF-300W (2505/300)	650-980	-fifty three.3–eighty	116-189	115-220	132-250	7750-7760
EL81WD	580-980	nine.8-58.eight	54.two-130	eighteen-151	45-185	3595
EL82WDB	580-980	nine.eight-fifty eight.8	seventy two.eight-161	22-191	45-220	3860
EL83WDA	580-980	9.8-fifty eight.nine	one hundred and one-213	28.5-202	45-220	4300
EL84WDA	580-980	9.eight-fifty eight.8	129-267	35.four-252	45-280	4720
EL93WDA	580-730	nine.eight-49	230-329	fifty six.4-311	seventy five-355	7765
EL94WDA	580-730	nine.8-forty nine	263-373	64-353	75-400	8130
EL95WDA	490-580	9.8-58.8	308-434	eighty one.four-414	ninety-450	11500
EL96WDA	580	fifty eight.eight	381	497	560	11500
E397WN	a thousand-1650	40	five-nine
E408WN	870-1650	40	10-22
E517WN	980-1580	40	20-thirty
E520WN	930-1550	40	24-forty five
E607WN	750-1250	forty	45-seventy six
E610WN	750-1250	forty	seventy five-130

Spare elements and composition of our roots blower:

Bundle of our Roots Blower

Pack into iron situation, two layer,blower physique and motor in lower layer, inlet/out silencer etc in higher layer

Roots blower pack method identical as iron circumstance, just modify to Fumigation Free Plywood Situation

Our manufacturing unit is a skilled producer of Roots blowers which has over twenty 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
funds— HangZhou. Our business also has practical visitors transportation, as it is fifteen kilometers absent from
Diaozhen Town station of HangZhou-HangZhou expressway, and thirty kilometers away from East HangZhou station of
ZheJiang -ZheJiang expressway.The major solution of our firm is ESR -variety Roots Blower. The roots
vacuum pump is a new variety of substantial-performance roots blower, which is produced independently primarily based on the
domestic and overseas innovative technologies. Numerous patented technologies have been adopted on Roots
Blower, and hence we have produced considerable effects in power conservation and noise reduction, and so forth.. So significantly, our
organization has invested a lot more than thirty,000,000 RMB to introduce such advanced expert tools as
horizontal machining middle, vertical machining heart, two-way CNC floor planer, CNC lathe, CNC milling
device, CNC planer, aircraft grinder, cylindrical grinding machine, and 3 coordinates testing device.
Apart from, we have taken numerous measures to standardize the process circulation such as doing work and cooperating
with several scientific research units, schools and universities at house and overseas. We also constantly consider to
take in and boost the domestic innovative creation systems, so as to encourage the upgrading and
optimization of the item and make the merchandise quality get to the superior amount at home and overseas.
ESR -sort Roots Blower includes many collection such as 3-leaves Variety, Two-leaves Kind and Centrifugal
Kind,which can be further divided to hundreds of versions. The items are commonly utilised in sewage therapy,
pneumatic conveying,vacuum packaging, aquaculture, foods processing, EPT power, petrochemical, cement,
mining and other industries. Our products have this sort of benefits as reduced sound, strength conserving, stable top quality,
and lengthy provider life, and so on.. With the product sales outlets throughout the domestic capital towns, our merchandise sell nicely all
in excess of the country, and have been exported to North The usa,Russia, Malaysia, Indonesia, Vietnam, South Africa
and some other nations. Obtaining got the ISO9001 Worldwide Good quality System Certification, we have
established and enhanced the good quality assurance of the items designing, manufacturing, and installation.
From the approach of design, research and development to the finished items, we have got the whole
procedure controlled independently, therefore delivering the entire basis and trustworthiness assure for the products security
and toughness. Having a perfect product sales community and following-product sales provider, we give our buyers with increased-
quality and far more successful services.All personnel of our firm sincerely welcome the broad masses of close friends to
information, and negotiate enterprise with us.

Our Roots Blower Workshop

         Doosn Horzitonal Equipment Center

The Software of the Roots Blower

Maintenance and inspection
(one) Check out all fasteners and locating pins circumstances whether they are loosening.
(2) Constantly check out no matter whether the leakage phenomenon of the body.
(3) Spend interest to lubrication, amount of grease and noises when operating,
decide whether it operates below the required circumstances.
(four) Lubricant & grease: The lubricant is for medium load industrial equipment oil
(grade 220, kinematic viscosity of 198 ~ 242mm2 / s 40ºC, flash level ≥ 200ºC)
The grease is butter (artificial lithium grease penetration 220-250, fall point ≥
190ºC). Replace the lubricant and grease following 1st 200 several hours operating, and exchange
again soon after a moth operating. Afterwards, exchange the lubricant and grease in accordance to the
setting and lubricant (grease) high quality suggest a suited EPT for a few
months.
(five) Constantly verify the inlet air filter, clear or exchange the filter in time.
(six) Blower overload sometimes not immediately shown, so pay out attention to
the consumption and exhaust force, bearing temperature and the current enhance developments
of motor to determine whether the blower works generally
(seven) Before disassembling the blower, the assembling relation and dimensions
must be recorded or calculated, make marks on components to ensure the authentic
needs soon after assembling.
(eight) When newly device or overhaul, the oil tank need to be cleaned just before use
and suggest replace all grease after 8 several hours operating.

Frequent failure cause and troubleshooting

No	Failure	Feasible reasons	Elimination strategies
1	Friction amongst the impeller	(one) Impurities on the impeller, ensuing in the hole is too modest (2) Gear dress in, ensuing in a large backlash (3) The equipment is not effectively set, can not preserve the impeller synchronization (four) Bearing wear ensuing in clearance increasing.	(1) Eliminate grime and check no matter whether there is hurt parts (two) Alter the equipment hole, change the gears if the gear backlash is increased than the regular 30% to fifty% (3)Re-assemble the gears, maintain the taper speak to location is to seventy five% (4)Substitute the bearing
2	Collision in between impeller and wall, the impeller top and casing	(one) Installation gap is not appropriate (two) operating strain is also higher, exceeding the specified value (3) Functioning temperature is also higher (four) Casing or base deformation, positioning fan failure (five) Bearing axial spot is not very good	(one) Alter the hole (2) Recognize causes of overloading, diminished the force to the specified value (3) Verify the set up precision and minimize the pipe tension (4) Verify and restore bearings, and to guarantee the clearance (5)Relocation
three	Temperature as well substantial	(one) Oil in tank is as well a lot, too thick or too dirty (two) Filter or silencer is blocked (3)The strain is higher than the specified price (four)Abnormal dress in of the impeller, big hole (five)Poor air flow, indoor temperature is higher, ensuing in inlet air’s substantial temperature (6) The rotating velocity is also lower,outcome in the belt slipping.	(1)Minimize the oil stage or count on oil (2)Eliminate of blocking objects (3)Lowering the force by way of the blower (4)Mend its clearance (five)Open up vents to decrease place temperature (6) Increase pace to stop the belt slipping.
four	Inadequate movement	(1) The inlet filter is blocked (two) Impeller wear and the gap increases way too considerably (three) Belt slipping (four) Massive imports pressure loss (5) Pipeline ventilation leakage	(1) Clear the filter dust and obstruction (2) Fix the gap (3)Tighten the belt and enhance the amount of belts (four)Change the inlet strain to the specified value (5) Examine and fix the pipeline
5	Oil leaking or oil leaking into the enclosure	(one)Higher tank placement cause leakage from the discharge port (two) Seal use, resulting in shaft oil spills (three) The stress is larger than the specified price	(one)Minimize the oil level (two)Change the seals (3)Distinct the air vents, 2mm diameter faucet is fixed in the center chamber, open up the faucet underneath the wall
6	Irregular vibration and sound	(1)Bearing clearance exceeds the specified benefit or bearing put on (two) The gear backlash is way too huge, not in a tight mounted (3) The overseas objects and dust triggered by the impeller and the impeller, the impeller and the housing collision (4) the impeller shaft deformation caused the collision induced by overload, (five) Friction amongst the impeller and the inlet housing triggered by overheating (six) Unbalance of the impeller brought on by fouling or overseas human body (seven) Anchor bolts or other fasteners are loosened	(one)Substitute bearings or bearing seat (2)Reassemble equipment and ensure backlash (3)Cleaning blower, check out the scenario is ruined (4)Check out the again strain, check the wheel and modify hole (5)Verify the filter and back again force, increase the hole amongst the impeller inlet and the casing (6)Clear the impeller and the casing, to ensure that the impeller clearance operate (7) Tighten the anchor bolts and leveling the foundation.
7	Motor overload	(one)In contrast with the required strain, the force difference is big that the again pressure or the inlet strain is large (two) Compared with the products needs, blower circulation is way too massive, so its strain will increase (three)Inlet filter is blocked, or outlet pipe is obstructed or blocked (4) Collusion or friction (caught) rotating parts (5) The oil amount is also high (6) Narrow V-belt is overheat, vibration is way too huge, or pulley is way too small	(1) Reduce the pressure to the specified worth (2) Exhaust the excessive gasoline into the atmosphere or reduce the blower velocity (3) Get rid of the obstructions (four)Right away shut down, verify the cause (5) Change the oil to the appropriate amount (six) Check the belt stress, and changed it with huge diameter pulley.

Our Services

1. Pre promote service                                                                              2. Soon after promote service                                          
a. advise the ideal model                                             c. on-line technological support,                                                                                   
b. manufacturing unit tour                                                                              d. whole life spare areas and techinical assist

Gurantee

twelve months gurantee for our roots blowers
 

/ The use of original products manufacturer’s (OEM) part figures or trademarks , e.g. CASE® and John Deere® are for reference reasons only and for indicating item use and compatibility. Our company and the outlined EPT elements contained herein are not sponsored, approved, or created by the OEM. /