We – EPG Team the greatest couplings and gears factory in China with 5 distinct branches. For more details: Mobile/whatsapp/telegram/Kakao us at: 0086-13083988828 /

We make all types of roots blower, centrifugal blower, Our Major items are as beneath:

Kind	Diameter	Price of movement	Force
ESR-MJ(Intense Sort)	Φ50~Φ300mm	.five~140m³/min	9.8KPa~ninety eight.8Kpa
ESR(Common Kind)	Φ50~Φ350mm	.5~140m³/min	nine.8KPa~seventy eight.4Kpa
ESR-H(Substantial-pressure Variety)	Φ50~Φ350mm	.7~160m³/min	58.8KPa~98.8Kpa
ESR-V(Vacuum Pump)	Φ50~Φ350mm	.5~160m³/min	9.8KPa~fifty three.3Kpa
EL Sequence	Φ200~Φ600mm	20.three~750m³/min	9.8KPa~fifty eight.8Kpa
Multistage Centrifugal Blower or C-Collection	Φ250~Φ500mm	50~500m³/min	nine.8KPa~98Kpa
ERR-ERG Variety	Φ250~Φ500mm	one hundred twenty~420m³/min	nine.8KPa~98.8Kpa

The functioning principle of the 3-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. By means of the action 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 gasoline in the chamber is pushed to accomplish the
objective of blowing.

Characteristic of our roots blower:
1. Big adjustment of the air quantity
2. Lower Sounds
3. Large performance
four. Minimal strength cosumption
five. Lengthy time daily life
6. Reliable working, easy maintenance,tiny footprint

The parameters of our roots blower:

Sort	Ratary Velocity (r/min)	Pressure Rise (Kpa)	Capability (m/min)	Shaft Energy (Kw)	Motor	Device Maximn Bodyweight(Kg)
					Energy (Kw)
ESR-50	1100-2120	9.8-58.8	.sixty five-2.58	.three-three.54	.75-4	128-158
ESR-65	1100-2130	nine.8-fifty eight.eight	.94-three.66	.38-4.46	.75-five.five	a hundred and fifty five-185
ESR-80	1140-1900	9.eight-58.8	2.34-five.43	1.04-seven.forty two	two.two-eleven	a hundred and fifty five-277
ESR-one hundred	1060-1980	9.eight-fifty eight.eight	four.57-9.05	1.35-twelve.fifteen	three-fifteen	309-377
ESR-125	980-1850	9.eight-fifty eight.eight	five.35-12.4	1.65-5.19	5.5-eighteen.5	408-451
ESR-125C	970-1830	nine.eight-58.eight	7.five-17.57	three.two-18.five	four-22	408-451
ESR-150	810-1730	nine.eight-58.8	10.37-27.15	three.84-forty.eighty two	seven.5-forty five	688-848
ESR-a hundred seventy five	970-1520	9.8-fifty eight.8	19.65-36.65	7.two-forty five.ninety five	eleven-55	980-1080
ESR-200B	740-1450	nine.eight-58.eight	19.65-44.8	ten.15-60.44	fifteen-75	1272-1546
ESR-two hundred	810-1480	nine.eight-58.eight	27.65-59.2	8.05-eighty,12	fifteen-ninety	1272-1546
ESR-250B	1100-1480	9.8-58.8	54.seventy seven-seventy seven.fifty five	19.ninety seven-90.ninety seven	thirty-110	1490-2454
ESR-250	990-1480	nine.8-fifty eight.eight	61.4-ninety seven.52	20.one-117.three	thirty-132	1490-2454
ESR-300	990-1480	nine.eight-fifty eight.8	87.one-138.1	26.four-167.eight	37-185	3326-3446
ESR-350	730-1480	nine.8-fifty eight.eight	78.forty one-177.31		55-250
ESR-50H	1230-2120	sixty three.7-98	.45-2.02	two.05-six.12	three-seven.five	a hundred and sixty–170
ESR-65H	1240-2130	sixty three.seven-ninety eight	.78-2.53	2.89-7.55	4-11	198-230
ESR-80H	1140-1900	63.7-ninety eight	one.82-4.55	4.09-10.1	5.5-15	316-326
ESR-100H	1060-1980	sixty three.seven-ninety eight	2.65-8.06	six.36-17.2	seven.5-22	398-459
ESR-125H	980-1850	63.7-ninety eight	4.sixty four-11.23	eight.92-24.two	11-thirty	544-630
ESR-150H	810-1730	sixty three.seven-98	9.53-25.76	17.16-65	eighteen.5-seventy five	752-1571
ESR-200H	810-1480	63.7-98	twenty five.34-56.92	42.34-120	fifty five-132	1426-1934
ESR-250H	990-1480	sixty three.seven-ninety eight	fifty eight-ninety three.7	eighty three.two-205	ninety-220	2980-3468
ESR300H	990-1480	63.7-98	86.nine-134.1	114.7-270	132-280	3476-3998
ERF-245	650-980	9.8-ninety eight	forty seven.5-ninety seven.4	sixteen-183	eighteen.5-two hundred	3630-3690
ERF-250	650-980	nine.8-ninety eight	sixty one.6-120.four	19-227	22-250	4450-4500
ERF-290	650-980	9.8-78.4	92.3-128	22-213	30-250	4890-4710
ERF-295	650-980	9.eight-seventy eight.4	97.3-152.5	23-227	thirty-250	4890-4880
ERF-297	650-980	9.eight-seventy eight.4	87.5-167.six	26-249	thirty-280	5330-5520
ERF-300	650-980	nine.eight-seventy eight.four	a hundred and one.5-188.7	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	9.8-98	128.three-196	38-362	45-400	9440-15710
ERG-350	590-730	9.8-98	159.three-231.6	forty three-420	55-450	9700-1571
ERG-400	590-730	nine.8-eighty three.three	203.1-290.9	52-449	seventy five-five hundred	10090-11390
ERG-445	590-730	9.eight-73.5	229.seven-327.eight	fifty eight-477	75-560	10600-12230
ERG-450	590-730	9.eight-seventy three.5	262.4-366.two	64-496	75-560	10600-12230
ERG-five hundred	590-730	9.eight-63.7	327.4-452.four	78-529	90-560	12790-14620
ERF-240-V	650-980	-9.eight- -49	38.one-seventy eight	thirteen-seventy six	18.5-ninety	3420-3285
ERF-245-V	650-980	-9.8- -49	forty seven.five-ninety seven.four	16-95	22-one hundred ten	3425-3360
ERF-250-V	650-980	-9.8- -forty nine	63-one hundred twenty	19-117	22-132	3910-3830
ERF-290-V	650-980	-nine.eight- -49	seventy two.six-a hundred and forty four	22-136	thirty-160	4415-4270
ERF-295-V	650-980	-nine.8- -49	76.six-152	23-145	thirty-one hundred sixty	4425-4485
ERF-297-V	650-980	-9.eight- -forty nine	84.3-166.eight	26-a hundred and sixty	30-one hundred eighty	5000-4980
ERF-300-V	650-980	-nine.eight- -forty nine	ninety seven-192	29-178	37-two hundred	5000-4980
ERF-350-V	650-980	-9.8- -49	116-225	34-209	45-250	5400-5700
ERG-300V	590-730	-9.eight- -forty nine	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	75-315	9900-10130
ERG-445V	590-730	-9.8- -49	224.eight-326.9	58-303	seventy five-355	9900-10130
ERG-450V	590-730	-9.eight- -forty nine	255-365	64-335	seventy five-four hundred	11230-11300
ERG-500V	590-730	-nine.eight- -49	314-452	seventy eight-412	132-450	13630-13850
ERF-245W	650-980	-13.three- -fifty three.three	53.five-a hundred and one	21.5-102	30-a hundred and ten	3630-3360
ERF-250W	650-980	-thirteen.3- -fifty three.three	69-127	26.5-127	30-160	3985-4115
ERF-290W	650-980	-thirteen.three- -53.3	82.six-a hundred and fifty	30.five-149	37-185	4340-4580
ERF-295W	650-980	-13.3- -53.three	87-158	32-158	37-185	4440-4580
ERF-297W	650-980	-13.3- -53.3	95-174	36-174	forty five-two hundred	5230-5130
ERF-300W	650-980	-thirteen.three- -fifty three.three	109-195	40-193	55-220	5230-5130
ERF-350W	650-980	-thirteen.3- -fifty three.3	129-230	50-230	seventy five-250	5840-5670
ERG-300W	590-730	-thirteen.three- -fifty three.3	142-197	52-201	75-220	9100-9000
ERF-350W	590-730	-13.three- -fifty three.three	168-234.4	fifty nine-235.5	seventy five-280	9500-9600
ERG-400W	590-730	-13.three- -53.three	220-276.six	71-292	90-315	9900-10130
ERG-445W	590-730	-13.three- -fifty three.3	244-294.6	82-331	ninety-400	11230-11300
ERG450W	590-730	-thirteen.three- -fifty three.3	275-368.five	ninety one-366	a hundred and ten-400	11230-11300
ETRF-250 (240,250)	650-980	ninety eight-196	64.8-112	a hundred thirty five-355	160-four hundred	8700-8600
ETRF-295 (245,295)	650-980	98-196	eighty.8-139	167-439	185-500	9200-9100
ETRF-300 (245,295)	650-980	ninety eight-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 (300,400)	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-one thousand	24200-27600
ETRF-250W (240,250)	650-980	-fifty three.3–80	72-121	seventy five.six-121	90-one hundred sixty	6100-6470
ETRF-295W (245/295)	650-980	-fifty three.3–eighty	93.8-154	99.5-186	a hundred and ten-220	7000-6400
ETRF-300W (2505/three hundred)	650-980	-fifty three.three–80	116-189	one hundred fifteen-220	132-250	7750-7760
EL81WD	580-980	nine.8-fifty eight.8	fifty four.two-130	18-151	forty five-185	3595
EL82WDB	580-980	nine.eight-fifty eight.eight	72.8-161	22-191	forty five-220	3860
EL83WDA	580-980	nine.eight-fifty eight.nine	one zero one-213	28.5-202	45-220	4300
EL84WDA	580-980	9.8-58.8	129-267	35.four-252	45-280	4720
EL93WDA	580-730	nine.8-forty nine	230-329	56.four-311	seventy five-355	7765
EL94WDA	580-730	nine.8-forty nine	263-373	sixty four-353	seventy five-four hundred	8130
EL95WDA	490-580	nine.8-58.eight	308-434	81.four-414	90-450	11500
EL96WDA	580	fifty eight.eight	381	497	560	11500
E397WN	one thousand-1650	40	five-9
E408WN	870-1650	40	10-22
E517WN	980-1580	40	twenty-30
E520WN	930-1550	forty	24-forty five
E607WN	750-1250	forty	forty five-seventy six
E610WN	750-1250	forty	75-a hundred thirty

Spare parts and framework of our roots blower:

Bundle of our Roots Blower

Pack into iron case, two layer,blower entire body and motor in lower layer, inlet/out silencer and so forth in higher layer

Roots blower pack method very same as iron circumstance, just adjust to Fumigation Cost-free Plywood Case

Our factory is a expert producer of Roots blowers which has in excess of twenty years’ experience in machinery
manufacturing. It is positioned in Xihu (West Lake) Dis. East Industrial Park, fifty kilometers to the east of Shan EPT provincial
cash— HangZhou. Our business also has convenient traffic transportation, as it is 15 kilometers absent from
Diaozhen Town station of HangZhou-HangZhou expressway, and thirty kilometers absent from East HangZhou station of
ZheJiang -ZheJiang expressway.The foremost merchandise of our company is ESR -sort Roots Blower. The roots
vacuum pump is a new variety of higher-efficiency roots blower, which is developed independently based mostly on the
domestic and foreign advanced systems. Several patented technologies have been adopted on Roots
Blower, and hence we have produced important effects in power conservation and noise reduction, and so on.. So considerably, our
company has invested much more than 30,000,000 RMB to introduce these kinds of sophisticated professional tools as
horizontal machining heart, vertical machining center, two-way CNC floor planer, CNC lathe, CNC milling
equipment, CNC planer, airplane grinder, cylindrical grinding equipment, and 3 coordinates testing device.
In addition to, we have taken various actions to standardize the procedure stream such as operating and cooperating
with a lot of scientific research units, faculties and universities at residence and abroad. We also repeatedly try out to
take up and improve the domestic sophisticated creation systems, so as to advertise the upgrading and
optimization of the item and make the item high quality reach the sophisticated stage at residence and overseas.
ESR -variety Roots Blower includes numerous collection this kind of as Three-leaves Variety, Two-leaves Variety and Centrifugal
Kind,which can be more divided to hundreds of kinds. The merchandise are widely utilised in sewage treatment method,
pneumatic conveying,vacuum packaging, aquaculture, meals processing, EPT electricity, petrochemical, cement,
mining and other industries. Our merchandise have this kind of advantages as lower sound, power preserving, steady good quality,
and long services existence, and many others.. With the sales outlets throughout the domestic cash metropolitan areas, our items market effectively all
more than the place, and have been exported to North The us,Russia, Malaysia, Indonesia, Vietnam, South Africa
and some other countries. Possessing obtained the ISO9001 International Quality System Certification, we have
established and enhanced the top quality assurance of the goods developing, production, and set up.
From the process of design and style, research and growth to the completed products, we have obtained the total
procedure managed independently, as a result supplying the complete basis and trustworthiness ensure for the products steadiness
and durability. Getting a perfect income network and after-product sales services, we provide our customers with greater-
quality and a lot more effective support.All workers of our business sincerely welcome the broad masses of friends to
information, and negotiate organization with us.

Our Roots Blower Workshop

         Doosn Horzitonal Machine Centre

The Application of the Roots Blower

Upkeep and inspection
(1) Examine all fasteners and finding pins situations no matter whether they are loosening.
(2) Often verify no matter whether the leakage phenomenon of the physique.
(three) Pay out focus to lubrication, sum of grease and noises when working,
determine no matter whether it functions below the needed situations.
(four) Lubricant & grease: The lubricant is for medium load industrial gear oil
(grade 220, kinematic viscosity of 198 ~ 242mm2 / s 40ºC, flash point ≥ 200ºC)
The grease is butter (synthetic lithium grease penetration 220-250, drop level ≥
190ºC). Change the lubricant and grease soon after first two hundred hours working, and substitute
again soon after a moth managing. Later, change the lubricant and grease according to the
environment and lubricant (grease) good quality propose a appropriate EPT for a few
months.
(5) Often verify the inlet air filter, clear or substitute the filter in time.
(six) Blower overload often not quickly exhibited, so pay focus to
the consumption and exhaust strain, bearing temperature and the present improve trends
of motor to establish no matter whether the blower works usually
(7) Just before disassembling the blower, the assembling relation and proportions
must be recorded or calculated, make marks on elements to make sure the original
needs soon after assembling.
(eight) When newly machine or overhaul, the oil tank need to be cleaned before use
and propose exchange all grease after eight hours working.

Frequent failure reason and troubleshooting

No	Failure	Attainable factors	Elimination methods
1	Friction in between the impeller	(1) Impurities on the impeller, ensuing in the gap is too tiny (2) Equipment use, resulting in a large backlash (three) The gear is not effectively fastened, can not preserve the impeller synchronization (four) Bearing use resulting in clearance escalating.	(1) Get rid of filth and check whether there is damage areas (2) Change the equipment hole, exchange the gears if the gear backlash is higher than the common thirty% to fifty% (3)Re-assemble the gears, keep the taper speak to area is to 75% (four)Change the bearing
two	Collision amongst impeller and wall, the impeller top and casing	(1) Set up gap is not right (two) running stress is way too large, exceeding the specified worth (3) Functioning temperature is also higher (four) Casing or foundation deformation, positioning admirer failure (5) Bearing axial spot is not excellent	(one) Alter the gap (2) Identify brings about of overloading, diminished the pressure to the specified worth (three) Examine the set up accuracy and decrease the pipe tension (four) Examine and mend bearings, and to ensure the clearance (five)Relocation
three	Temperature as well high	(1) Oil in tank is as well much, also thick or too dirty (two) Filter or silencer is blocked (three)The force is higher than the specified price (four)Excessive wear of the impeller, big hole (5)Poor air flow, indoor temperature is large, resulting in inlet air’s higher temperature (6) The rotating velocity is too reduced,outcome in the belt slipping.	(1)Reduce the oil amount or count on oil (two)Remove of blocking objects (three)Lowering the pressure by way of the blower (4)Mend its clearance (5)Open vents to minimize area temperature (six) Improve speed to avoid the belt slipping.
four	Inadequate circulation	(one) The inlet filter is blocked (2) Impeller dress in and the hole increases as well a lot (3) Belt slipping (4) Large imports force loss (five) Pipeline ventilation leakage	(one) Clear the filter dust and obstruction (2) Mend the gap (three)Tighten the belt and enhance the amount of belts (four)Change the inlet stress to the specified price (five) Check and mend the pipeline
5	Oil leaking or oil leaking into the enclosure	(one)High tank situation cause leakage from the discharge port (2) Seal dress in, resulting in shaft oil spills (three) The stress is increased than the specified benefit	(1)Minimize the oil stage (2)Change the seals (3)Obvious the air vents, 2mm diameter faucet is set in the center chamber, open up the faucet under the wall
six	Irregular vibration and sounds	(1)Bearing clearance exceeds the specified benefit or bearing use (two) The gear backlash is way too big, not in a tight fixed (3) The international 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 amongst the impeller and the inlet housing caused by overheating (six) Unbalance of the impeller caused by fouling or international entire body (seven) Anchor bolts or other fasteners are loosened	(1)Substitute bearings or bearing seat (2)Reassemble gear and ensure backlash (three)Cleaning blower, verify the scenario is ruined (four)Check the back again pressure, examine the wheel and modify hole (5)Check out the filter and back strain, increase the hole amongst the impeller inlet and the casing (6)Thoroughly clean the impeller and the casing, to make certain that the impeller clearance perform (7) Tighten the anchor bolts and leveling the foundation.
seven	Motor overload	(1)When compared with the required pressure, the strain big difference is massive that the back strain or the inlet pressure is substantial (2) In comparison with the tools specifications, blower circulation is also large, so its pressure boosts (3)Inlet filter is blocked, or outlet pipe is obstructed or blocked (4) Collusion or friction (trapped) rotating parts (5) The oil degree is as well large (six) Slim V-belt is overheat, vibration is also big, or pulley is too modest	(1) Decrease the force to the specified value (two) Exhaust the extra gasoline into the atmosphere or reduce the blower speed (three) Take away the obstructions (4)Instantly shut down, check out the reason (5) Change the oil to the appropriate stage (6) Check the belt tension, and replaced it with large diameter pulley.

Our Service

one. Pre market service                                                                              two. Following promote service                                          
a. recommend the appropriate model                                             c. on-line technological support,                                                                                   
b. manufacturing unit tour                                                                              d. complete lifestyle spare areas and techinical support

Gurantee

twelve months gurantee for our roots blowers
 

/ The use of authentic gear manufacturer’s (OEM) part quantities or emblems , e.g. CASE® and John Deere® are for reference reasons only and for indicating product use and compatibility. Our organization and the shown EPT components contained herein are not sponsored, approved, or produced by the OEM. /