We – EPG Team the greatest couplings and gears manufacturing facility in China with five different branches. For much more details: Mobile/whatsapp/telegram/Kakao us at: 0086-13083988828 /

We make all kinds of roots blower, centrifugal blower, Our Principal products are as beneath:

Sort	Diameter	Charge of circulation	Force
ESR-MJ(Intense Type)	Φ50~Φ300mm	.5~140m³/min	9.8KPa~ninety eight.8Kpa
ESR(Common Variety)	Φ50~Φ350mm	.5~140m³/min	nine.8KPa~seventy eight.4Kpa
ESR-H(High-stress Type)	Φ50~Φ350mm	.seven~160m³/min	fifty eight.8KPa~98.8Kpa
ESR-V(Vacuum Pump)	Φ50~Φ350mm	.five~160m³/min	nine.8KPa~fifty three.3Kpa
EL Series	Φ200~Φ600mm	twenty.3~750m³/min	9.8KPa~58.8Kpa
Multistage Centrifugal Blower or C-Sequence	Φ250~Φ500mm	fifty~500m³/min	9.8KPa~98Kpa
ERR-ERG Variety	Φ250~Φ500mm	120~420m³/min	nine.8KPa~98.8Kpa

The functioning theory 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 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 obtain the
function of blowing.

Attribute of our roots blower:
1. Huge adjustment of the air quantity
two. Minimal Noise
three. Substantial effectiveness
4. Minimal energy cosumption
5. Lengthy time daily life
6. Trustworthy running, straightforward maintenance,little footprint

The parameters of our roots blower:

Type	Ratary Velocity (r/min)	Force Rise (Kpa)	Potential (m/min)	Shaft Electrical power (Kw)	Motor	Device Maximn Bodyweight(Kg)
					Energy (Kw)
ESR-50	1100-2120	9.8-58.8	.sixty five-two.58	.3-3.54	.seventy five-four	128-158
ESR-sixty five	1100-2130	9.8-58.8	.ninety four-3.66	.38-four.46	.seventy five-five.5	155-185
ESR-eighty	1140-1900	9.eight-fifty eight.8	2.34-five.43	one.04-7.42	two.two-eleven	a hundred and fifty five-277
ESR-one hundred	1060-1980	nine.8-58.eight	four.fifty seven-9.05	one.35-twelve.15	three-15	309-377
ESR-one hundred twenty five	980-1850	9.eight-58.8	5.35-12.4	one.65-5.19	5.five-eighteen.5	408-451
ESR-125C	970-1830	9.eight-58.8	seven.5-seventeen.57	three.two-18.5	four-22	408-451
ESR-150	810-1730	9.8-fifty eight.eight	10.37-27.15	3.84-40.eighty two	seven.5-45	688-848
ESR-a hundred seventy five	970-1520	nine.8-58.eight	19.sixty five-36.sixty five	7.2-forty five.ninety five	eleven-55	980-1080
ESR-200B	740-1450	nine.8-58.8	19.65-forty four.8	10.fifteen-60.forty four	fifteen-seventy five	1272-1546
ESR-200	810-1480	nine.8-fifty eight.8	27.65-fifty nine.2	8.05-80,twelve	fifteen-90	1272-1546
ESR-250B	1100-1480	9.eight-58.8	54.seventy seven-77.fifty five	19.ninety seven-90.ninety seven	30-one hundred ten	1490-2454
ESR-250	990-1480	nine.eight-58.eight	sixty one.four-97.52	twenty.1-117.3	30-132	1490-2454
ESR-300	990-1480	9.8-fifty eight.8	87.one-138.one	26.4-167.eight	37-185	3326-3446
ESR-350	730-1480	9.eight-fifty eight.8	seventy eight.41-177.31		fifty five-250
ESR-50H	1230-2120	sixty three.7-ninety eight	.forty five-two.02	two.05-six.twelve	three-7.5	one hundred sixty–one hundred seventy
ESR-65H	1240-2130	sixty three.seven-ninety eight	.78-two.fifty three	two.89-seven.55	4-eleven	198-230
ESR-80H	1140-1900	63.7-98	one.eighty two-four.55	four.09-ten.1	5.five-fifteen	316-326
ESR-100H	1060-1980	63.seven-ninety eight	two.65-eight.06	6.36-17.2	seven.5-22	398-459
ESR-125H	980-1850	63.7-98	four.sixty four-eleven.23	eight.92-24.two	11-30	544-630
ESR-150H	810-1730	63.7-ninety eight	9.fifty three-25.76	17.sixteen-sixty five	eighteen.5-seventy five	752-1571
ESR-200H	810-1480	63.7-ninety eight	25.34-56.92	forty two.34-120	55-132	1426-1934
ESR-250H	990-1480	63.seven-98	58-93.seven	eighty three.2-205	90-220	2980-3468
ESR300H	990-1480	sixty three.7-ninety eight	86.9-134.1	114.7-270	132-280	3476-3998
ERF-245	650-980	9.eight-98	47.5-97.4	sixteen-183	eighteen.five-200	3630-3690
ERF-250	650-980	nine.eight-98	61.six-120.four	19-227	22-250	4450-4500
ERF-290	650-980	9.eight-seventy eight.four	92.three-128	22-213	30-250	4890-4710
ERF-295	650-980	9.8-78.4	ninety seven.three-152.5	23-227	thirty-250	4890-4880
ERF-297	650-980	9.8-seventy eight.4	87.5-167.six	26-249	thirty-280	5330-5520
ERF-300	650-980	nine.eight-78.4	one hundred and one.five-188.seven	29-278	37-315	5330-5520
ERF-350	650-980	nine.eight-seventy eight.4	126-224.9	34-249	forty five-280	5210-6470
ERG-three hundred	590-730	9.eight-98	128.three-196	38-362	forty five-400	9440-15710
ERG-350	590-730	9.eight-98	159.three-231.six	forty three-420	55-450	9700-1571
ERG-400	590-730	9.eight-83.three	203.1-290.nine	52-449	75-500	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	9.eight-73.five	262.four-366.two	sixty four-496	75-560	10600-12230
ERG-500	590-730	nine.eight-sixty three.7	327.four-452.4	78-529	ninety-560	12790-14620
ERF-240-V	650-980	-nine.eight- -49	38.one-seventy eight	thirteen-seventy six	18.five-ninety	3420-3285
ERF-245-V	650-980	-nine.8- -49	forty seven.five-97.four	16-ninety five	22-110	3425-3360
ERF-250-V	650-980	-nine.8- -49	sixty three-one hundred twenty	19-117	22-132	3910-3830
ERF-290-V	650-980	-9.8- -forty nine	seventy two.6-144	22-136	30-160	4415-4270
ERF-295-V	650-980	-nine.eight- -49	76.six-152	23-a hundred forty five	30-a hundred and sixty	4425-4485
ERF-297-V	650-980	-nine.eight- -49	84.three-166.eight	26-a hundred and sixty	thirty-one hundred eighty	5000-4980
ERF-300-V	650-980	-nine.eight- -49	ninety seven-192	29-178	37-two hundred	5000-4980
ERF-350-V	650-980	-nine.eight- -49	116-225	34-209	forty five-250	5400-5700
ERG-300V	590-730	-nine.eight- -forty nine	133-193	38-184	forty five-220	7800-9100
ERG-350V	590-730	-9.8- -forty nine	163-231	43-216	fifty five-250	9500-9470
ERG-400V	590-730	-9.eight- -49	199-290	fifty two-269	seventy five-315	9900-10130
ERG-445V	590-730	-9.8- -forty nine	224.8-326.nine	58-303	75-355	9900-10130
ERG-450V	590-730	-9.8- -49	255-365	sixty four-335	seventy five-four hundred	11230-11300
ERG-500V	590-730	-9.8- -49	314-452	seventy eight-412	132-450	13630-13850
ERF-245W	650-980	-thirteen.three- -fifty three.three	53.5-101	21.5-102	30-a hundred and ten	3630-3360
ERF-250W	650-980	-thirteen.3- -53.three	sixty nine-127	26.five-127	30-160	3985-4115
ERF-290W	650-980	-thirteen.3- -fifty three.3	82.six-one hundred fifty	30.five-149	37-185	4340-4580
ERF-295W	650-980	-thirteen.3- -53.3	87-158	32-158	37-185	4440-4580
ERF-297W	650-980	-thirteen.three- -53.three	95-174	36-174	forty five-200	5230-5130
ERF-300W	650-980	-13.three- -53.three	109-195	40-193	55-220	5230-5130
ERF-350W	650-980	-13.3- -53.3	129-230	fifty-230	75-250	5840-5670
ERG-300W	590-730	-thirteen.three- -fifty three.3	142-197	fifty two-201	seventy five-220	9100-9000
ERF-350W	590-730	-13.3- -53.3	168-234.4	59-235.5	75-280	9500-9600
ERG-400W	590-730	-thirteen.three- -fifty three.three	220-276.6	71-292	ninety-315	9900-10130
ERG-445W	590-730	-13.three- -fifty three.3	244-294.six	eighty two-331	90-four hundred	11230-11300
ERG450W	590-730	-thirteen.three- -53.3	275-368.five	91-366	a hundred and ten-four hundred	11230-11300
ETRF-250 (240,250)	650-980	ninety eight-196	64.8-112	one hundred thirty five-355	160-400	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	ninety eight-176.4	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-400 (three hundred,400)	590-740	98-176.4	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.three–80	seventy two-121	75.6-121	90-a hundred and sixty	6100-6470
ETRF-295W (245/295)	650-980	-fifty three.three–80	ninety three.eight-154	99.5-186	one hundred ten-220	7000-6400
ETRF-300W (2505/300)	650-980	-53.three–80	116-189	115-220	132-250	7750-7760
EL81WD	580-980	nine.eight-58.eight	54.two-a hundred thirty	18-151	forty five-185	3595
EL82WDB	580-980	nine.8-fifty eight.eight	seventy two.8-161	22-191	forty five-220	3860
EL83WDA	580-980	9.8-fifty eight.nine	101-213	28.five-202	45-220	4300
EL84WDA	580-980	9.8-fifty eight.8	129-267	35.4-252	forty five-280	4720
EL93WDA	580-730	nine.8-49	230-329	fifty six.4-311	75-355	7765
EL94WDA	580-730	9.eight-49	263-373	sixty four-353	seventy five-400	8130
EL95WDA	490-580	9.eight-58.eight	308-434	eighty one.4-414	90-450	11500
EL96WDA	580	58.8	381	497	560	11500
E397WN	a thousand-1650	40	five-9
E408WN	870-1650	40	10-22
E517WN	980-1580	forty	20-thirty
E520WN	930-1550	40	24-45
E607WN	750-1250	40	45-76
E610WN	750-1250	forty	seventy five-a hundred thirty

Spare elements and framework of our roots blower:

Deal of our Roots Blower

Pack into iron case, two layer,blower body and motor in decrease layer, inlet/out silencer and so on in upper layer

Roots blower pack method exact same as iron case, just change to Fumigation Free Plywood Circumstance

Our factory is a expert company of Roots blowers which has above twenty years’ experience in machinery
producing. It is found in Xihu (West Lake) Dis. East Industrial Park, 50 kilometers to the east of Shan EPT provincial
money— HangZhou. Our business also has hassle-free traffic transportation, as it is 15 kilometers away from
Diaozhen Town station of HangZhou-HangZhou expressway, and 30 kilometers away from East HangZhou station of
ZheJiang -ZheJiang expressway.The major product of our firm is ESR -sort Roots Blower. The roots
vacuum pump is a new sort of large-performance roots blower, which is created independently based on the
domestic and international sophisticated technologies. Numerous patented technologies have been adopted on Roots
Blower, and therefore we have created significant effects in strength conservation and noise reduction, and many others.. So significantly, our
firm has invested far more than 30,000,000 RMB to introduce this sort of sophisticated skilled gear as
horizontal machining center, vertical machining centre, two-way CNC area planer, CNC lathe, CNC milling
device, CNC planer, aircraft grinder, cylindrical grinding device, and three coordinates screening device.
In addition to, we have taken different measures to standardize the process stream such as operating and cooperating
with many scientific research units, colleges and universities at residence and overseas. We also constantly consider to
soak up and increase the domestic advanced manufacturing technologies, so as to encourage the upgrading and
optimization of the item and make the product good quality attain the innovative amount at house and abroad.
ESR -sort Roots Blower involves a number of series this sort of as Three-leaves Variety, Two-leaves Type and Centrifugal
Type,which can be even more divided to hundreds of versions. The products are commonly utilised in sewage remedy,
pneumatic conveying,vacuum packaging, aquaculture, foodstuff processing, EPT electricity, petrochemical, cement,
mining and other industries. Our goods have these kinds of positive aspects as reduced sound, vitality saving, steady quality,
and long services daily life, and so forth.. With the sales outlets throughout the domestic cash cities, our products promote effectively all
above the nation, and have been exported to North The usa,Russia, Malaysia, Indonesia, Vietnam, South Africa
and some other countries. Getting received the ISO9001 International Top quality Method Certification, we have
established and enhanced the good quality assurance of the merchandise creating, manufacturing, and set up.
From the method of design, analysis and improvement to the concluded goods, we have received the whole
approach managed independently, therefore delivering the complete basis and reliability assure for the products steadiness
and toughness. Getting a perfect product sales network and after-revenue service, we supply our consumers with higher-
top quality and far more successful service.All staff of our business sincerely welcome the broad masses of buddies to
guide, and negotiate organization with us.

Our Roots Blower Workshop

         Doosn Horzitonal Machine Centre

The Software of the Roots Blower

Routine maintenance and inspection
(one) Verify all fasteners and finding pins circumstances whether or not they are loosening.
(2) Usually check no matter whether the leakage phenomenon of the body.
(3) Shell out interest to lubrication, sum of grease and noises when managing,
determine no matter whether it performs beneath the essential conditions.
(4) Lubricant & grease: The lubricant is for medium load industrial gear oil
(grade 220, kinematic viscosity of 198 ~ 242mm2 / s 40ºC, flash position ≥ 200ºC)
The grease is butter (artificial lithium grease penetration 220-250, fall level ≥
190ºC). Exchange the lubricant and grease following first two hundred several hours managing, and change
once more right after a moth operating. Later, change the lubricant and grease according to the
setting and lubricant (grease) top quality suggest a ideal EPT for 3
months.
(five) Constantly check out the inlet air filter, thoroughly clean or substitute the filter in time.
(6) Blower overload often not immediately exhibited, so shell out consideration to
the ingestion and exhaust stress, bearing temperature and the current enhance traits
of motor to figure out whether the blower operates typically
(seven) Just before disassembling the blower, the assembling relation and proportions
should be recorded or calculated, make marks on factors to make sure the authentic
requirements after assembling.
(eight) When newly machine or overhaul, the oil tank need to be cleaned prior to use
and propose change all grease following eight several hours working.

Common failure explanation and troubleshooting

No	Failure	Possible causes	Elimination techniques
1	Friction in between the impeller	(1) Impurities on the impeller, ensuing in the gap is also tiny (two) Gear dress in, resulting in a huge backlash (3) The equipment is not properly set, can not sustain the impeller synchronization (4) Bearing dress in resulting in clearance rising.	(one) Take away filth and check no matter whether there is hurt elements (2) Adjust the gear hole, replace the gears if the equipment backlash is higher than the common thirty% to fifty% (three)Re-assemble the gears, keep the taper get in touch with region is to 75% (4)Exchange the bearing
two	Collision amongst impeller and wall, the impeller prime and casing	(one) Installation hole is not right (two) running stress is as well large, exceeding the specified benefit (three) Working temperature is as well substantial (four) Casing or base deformation, positioning admirer failure (5) Bearing axial area is not good	(1) Modify the gap (two) Identify brings about of overloading, lowered the strain to the specified worth (3) Check out the installation precision and decrease the pipe stress (four) Check out and restore bearings, and to guarantee the clearance (five)Relocation
three	Temperature as well higher	(one) Oil in tank is as well significantly, as well thick or way too filthy (two) Filter or silencer is blocked (3)The stress is higher than the specified value (four)Excessive dress in of the impeller, massive gap (5)Very poor ventilation, indoor temperature is high, ensuing in inlet air’s substantial temperature (6) The rotating velocity is too lower,end result in the belt slipping.	(1)Lessen the oil stage or rely on oil (two)Take away of blocking objects (three)Decreasing the force by way of the blower (four)Repair its clearance (5)Open vents to decrease room temperature (6) Boost speed to avert the belt slipping.
4	Inadequate flow	(one) The inlet filter is blocked (two) Impeller use and the hole boosts too much (3) Belt slipping (four) Big imports stress reduction (5) Pipeline air flow leakage	(one) Thoroughly clean the filter dust and obstruction (two) Mend the gap (three)Tighten the belt and boost the number of belts (four)Alter the inlet strain to the specified value (5) Check out and restore the pipeline
five	Oil leaking or oil leaking into the enclosure	(1)Higher tank place cause leakage from the discharge port (two) Seal put on, ensuing in shaft oil spills (3) The pressure is larger than the specified benefit	(1)Reduce the oil level (2)Change the seals (3)Clear the air vents, 2mm diameter faucet is set in the center chamber, open the faucet beneath the wall
six	Abnormal vibration and sound	(1)Bearing clearance exceeds the specified value or bearing wear (2) The equipment backlash is as well large, not in a restricted fastened (three) The overseas objects and dust caused by the impeller and the impeller, the impeller and the housing collision (4) the impeller shaft deformation triggered the collision caused by overload, (5) Friction amongst the impeller and the inlet housing induced by overheating (six) Unbalance of the impeller induced by fouling or international human body (7) Anchor bolts or other fasteners are loosened	(one)Change bearings or bearing seat (2)Reassemble gear and guarantee backlash (three)Cleansing blower, check the case is broken (four)Check the back again force, check the wheel and change gap (5)Check out the filter and back stress, boost the hole in between the impeller inlet and the casing (six)Clean the impeller and the casing, to make sure that the impeller clearance work (seven) Tighten the anchor bolts and leveling the foundation.
7	Motor overload	(1)Compared with the necessary force, the force difference is large that the back again force or the inlet force is large (two) In comparison with the tools demands, blower flow is also huge, so its stress will increase (three)Inlet filter is blocked, or outlet pipe is obstructed or blocked (four) Collusion or friction (trapped) rotating components (five) The oil amount is way too high (6) Narrow V-belt is overheat, vibration is as well huge, or pulley is as well little	(one) Reduce the stress to the specified worth (two) Exhaust the surplus fuel into the atmosphere or minimize the blower velocity (3) Get rid of the obstructions (4)Quickly shut down, examine the reason (five) Alter the oil to the proper level (6) Verify the belt tension, and replaced it with huge diameter pulley.

Our Support

one. Pre promote service                                                                              2. After promote service                                          
a. advise the suitable model                                             c. on the internet technological assist,                                                                                   
b. manufacturing unit tour                                                                              d. whole daily life spare areas and techinical assistance

Gurantee

12 months gurantee for our roots blowers
 

/ The use of authentic tools manufacturer’s (OEM) part quantities or trademarks , e.g. CASE® and John Deere® are for reference functions only and for indicating solution use and compatibility. Our organization and the outlined EPT parts contained herein are not sponsored, accepted, or manufactured by the OEM. /