We – EPG Group the greatest couplings and gears factory in China with five diverse branches. For far more details: Cell/whatsapp/telegram/Kakao us at: 0086-13083988828 /

We make all types of roots blower, centrifugal blower, Our Primary goods are as under:

Variety	Diameter	Charge of circulation	Stress
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-stress Sort)	Φ50~Φ350mm	.7~160m³/min	fifty eight.8KPa~98.8Kpa
ESR-V(Vacuum Pump)	Φ50~Φ350mm	.5~160m³/min	nine.8KPa~53.3Kpa
EL Sequence	Φ200~Φ600mm	twenty.three~750m³/min	nine.8KPa~fifty eight.8Kpa
Multistage Centrifugal Blower or C-Sequence	Φ250~Φ500mm	fifty~500m³/min	9.8KPa~98Kpa
ERR-ERG Sort	Φ250~Φ500mm	one hundred twenty~420m³/min	9.8KPa~98.8Kpa

The functioning theory of the three-blade roots blower: two three-lobed rotors are organized in the cavity, and the
suction port and the discharge port are opened on the two sides of the cavity. By way of the action of a pair of
synchronous gears, the two rotors rotate in opposite directions and Relying on the mutual engagement of the two
rotors, the suction port and the discharge port are isolated, and the fuel in the chamber is pushed to attain the
goal of blowing.

Characteristic of our roots blower:
one. Big adjustment of the air volume
two. Lower Sounds
three. Substantial effectiveness
four. Lower vitality cosumption
5. Lengthy time existence
six. Trustworthy operating, simple servicing,tiny footprint

The parameters of our roots blower:

Variety	Ratary Pace (r/min)	Force Increase (Kpa)	Potential (m/min)	Shaft Electricity (Kw)	Motor	Unit Maximn Bodyweight(Kg)
					Electrical power (Kw)
ESR-50	1100-2120	9.eight-fifty eight.eight	.65-2.58	.three-three.fifty four	.75-four	128-158
ESR-65	1100-2130	9.8-58.8	.ninety four-three.sixty six	.38-four.forty six	.75-five.five	a hundred and fifty five-185
ESR-80	1140-1900	9.8-58.eight	2.34-5.43	1.04-7.forty two	2.2-11	155-277
ESR-100	1060-1980	nine.eight-fifty eight.eight	4.fifty seven-nine.05	one.35-12.15	three-15	309-377
ESR-a hundred twenty five	980-1850	9.eight-fifty eight.eight	five.35-12.4	one.65-five.19	5.5-18.five	408-451
ESR-125C	970-1830	nine.eight-58.eight	seven.five-17.fifty seven	three.two-18.5	four-22	408-451
ESR-one hundred fifty	810-1730	nine.8-58.eight	10.37-27.fifteen	3.84-forty.eighty two	seven.five-forty five	688-848
ESR-a hundred seventy five	970-1520	nine.eight-fifty eight.8	19.65-36.sixty five	seven.2-45.ninety five	eleven-55	980-1080
ESR-200B	740-1450	9.eight-fifty eight.eight	19.65-44.8	ten.15-sixty.forty four	15-75	1272-1546
ESR-200	810-1480	nine.8-58.8	27.sixty five-fifty nine.two	eight.05-80,twelve	15-90	1272-1546
ESR-250B	1100-1480	9.eight-58.8	54.seventy seven-seventy seven.55	19.97-90.ninety seven	30-one hundred ten	1490-2454
ESR-250	990-1480	nine.8-fifty eight.eight	61.4-ninety seven.52	20.one-117.3	30-132	1490-2454
ESR-300	990-1480	9.eight-58.8	87.1-138.one	26.4-167.8	37-185	3326-3446
ESR-350	730-1480	nine.8-58.8	78.forty one-177.31		fifty five-250
ESR-50H	1230-2120	sixty three.seven-98	.45-two.02	2.05-six.twelve	three-seven.five	one hundred sixty–170
ESR-65H	1240-2130	sixty three.seven-98	.78-two.fifty three	2.89-7.55	4-11	198-230
ESR-80H	1140-1900	sixty three.7-ninety eight	1.82-4.55	four.09-ten.one	five.5-fifteen	316-326
ESR-100H	1060-1980	63.seven-98	two.sixty five-8.06	six.36-seventeen.two	7.5-22	398-459
ESR-125H	980-1850	63.7-98	four.64-eleven.23	8.92-24.2	eleven-thirty	544-630
ESR-150H	810-1730	63.7-ninety eight	nine.53-25.seventy six	17.sixteen-65	18.five-seventy five	752-1571
ESR-200H	810-1480	63.7-98	twenty five.34-fifty six.ninety two	forty two.34-one hundred twenty	fifty five-132	1426-1934
ESR-250H	990-1480	sixty three.seven-98	fifty eight-93.7	83.2-205	ninety-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.eight-ninety eight	forty seven.5-ninety seven.4	sixteen-183	18.5-200	3630-3690
ERF-250	650-980	nine.8-ninety eight	sixty one.6-one hundred twenty.4	19-227	22-250	4450-4500
ERF-290	650-980	9.8-78.four	92.three-128	22-213	thirty-250	4890-4710
ERF-295	650-980	nine.8-seventy eight.4	ninety seven.three-152.5	23-227	30-250	4890-4880
ERF-297	650-980	nine.eight-78.four	87.five-167.six	26-249	30-280	5330-5520
ERF-300	650-980	nine.8-seventy eight.four	a hundred and one.five-188.seven	29-278	37-315	5330-5520
ERF-350	650-980	nine.eight-78.4	126-224.nine	34-249	forty five-280	5210-6470
ERG-three hundred	590-730	nine.eight-98	128.three-196	38-362	45-four hundred	9440-15710
ERG-350	590-730	nine.eight-98	159.three-231.6	forty three-420	55-450	9700-1571
ERG-400	590-730	9.eight-83.three	203.one-290.nine	fifty two-449	seventy five-five hundred	10090-11390
ERG-445	590-730	nine.8-73.five	229.7-327.8	58-477	75-560	10600-12230
ERG-450	590-730	nine.eight-73.5	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	seventy eight-529	ninety-560	12790-14620
ERF-240-V	650-980	-nine.8- -49	38.1-seventy eight	thirteen-76	eighteen.five-ninety	3420-3285
ERF-245-V	650-980	-9.8- -49	forty seven.5-ninety seven.four	sixteen-95	22-110	3425-3360
ERF-250-V	650-980	-9.8- -49	sixty three-120	19-117	22-132	3910-3830
ERF-290-V	650-980	-9.eight- -forty nine	seventy two.six-144	22-136	thirty-160	4415-4270
ERF-295-V	650-980	-9.8- -forty nine	76.six-152	23-a hundred forty five	thirty-a hundred and sixty	4425-4485
ERF-297-V	650-980	-nine.eight- -49	eighty four.three-166.eight	26-one hundred sixty	30-180	5000-4980
ERF-three hundred-V	650-980	-9.eight- -forty nine	ninety seven-192	29-178	37-two hundred	5000-4980
ERF-350-V	650-980	-9.eight- -forty nine	116-225	34-209	forty five-250	5400-5700
ERG-300V	590-730	-9.8- -forty nine	133-193	38-184	45-220	7800-9100
ERG-350V	590-730	-9.eight- -forty nine	163-231	43-216	fifty five-250	9500-9470
ERG-400V	590-730	-9.eight- -49	199-290	52-269	75-315	9900-10130
ERG-445V	590-730	-9.eight- -49	224.eight-326.nine	fifty eight-303	75-355	9900-10130
ERG-450V	590-730	-9.8- -forty nine	255-365	sixty four-335	seventy five-400	11230-11300
ERG-500V	590-730	-9.8- -49	314-452	78-412	132-450	13630-13850
ERF-245W	650-980	-thirteen.3- -fifty three.three	53.5-one zero one	21.five-102	thirty-a hundred and ten	3630-3360
ERF-250W	650-980	-thirteen.3- -53.three	69-127	26.5-127	thirty-one hundred sixty	3985-4115
ERF-290W	650-980	-13.3- -53.three	82.six-a hundred and fifty	30.five-149	37-185	4340-4580
ERF-295W	650-980	-thirteen.3- -fifty three.three	87-158	32-158	37-185	4440-4580
ERF-297W	650-980	-13.three- -fifty three.three	ninety five-174	36-174	45-200	5230-5130
ERF-300W	650-980	-thirteen.3- -fifty three.three	109-195	forty-193	fifty five-220	5230-5130
ERF-350W	650-980	-thirteen.3- -fifty three.3	129-230	fifty-230	75-250	5840-5670
ERG-300W	590-730	-thirteen.three- -53.three	142-197	fifty two-201	seventy five-220	9100-9000
ERF-350W	590-730	-thirteen.three- -fifty three.three	168-234.4	fifty nine-235.five	seventy five-280	9500-9600
ERG-400W	590-730	-13.three- -53.three	220-276.six	seventy one-292	ninety-315	9900-10130
ERG-445W	590-730	-13.three- -fifty three.3	244-294.six	eighty two-331	90-400	11230-11300
ERG450W	590-730	-13.three- -fifty three.3	275-368.5	91-366	110-four hundred	11230-11300
ETRF-250 (240,250)	650-980	98-196	64.8-112	135-355	160-400	8700-8600
ETRF-295 (245,295)	650-980	98-196	eighty.eight-139	167-439	185-five hundred	9200-9100
ETRF-300 (245,295)	650-980	98-176.4	102-174	206-497	250-560	10320-10500
ETRF-350 (245,295)	650-980	ninety eight-137.two	124-207	241-473	280-560	10700-11110
ETRG-400 (three hundred,400)	590-740	ninety eight-176.4	205-273	380-773	450-900	21350-24200
ETRG-450 (350,450)	590-740	98-176.4	263-428	476-955	560-one thousand	24200-27600
ETRF-250W (240,250)	650-980	-fifty three.3–eighty	72-121	seventy five.6-121	90-a hundred and sixty	6100-6470
ETRF-295W (245/295)	650-980	-fifty three.three–eighty	93.eight-154	99.5-186	one hundred ten-220	7000-6400
ETRF-300W (2505/300)	650-980	-53.3–eighty	116-189	a hundred and fifteen-220	132-250	7750-7760
EL81WD	580-980	nine.8-fifty eight.eight	54.2-130	18-151	forty five-185	3595
EL82WDB	580-980	9.eight-58.8	seventy two.8-161	22-191	forty five-220	3860
EL83WDA	580-980	nine.eight-58.9	a hundred and one-213	28.five-202	forty five-220	4300
EL84WDA	580-980	nine.8-fifty eight.8	129-267	35.4-252	45-280	4720
EL93WDA	580-730	9.8-forty nine	230-329	fifty six.four-311	75-355	7765
EL94WDA	580-730	nine.eight-49	263-373	sixty four-353	seventy five-400	8130
EL95WDA	490-580	nine.8-fifty eight.8	308-434	eighty one.4-414	90-450	11500
EL96WDA	580	fifty eight.8	381	497	560	11500
E397WN	one thousand-1650	40	5-nine
E408WN	870-1650	40	10-22
E517WN	980-1580	forty	20-30
E520WN	930-1550	40	24-45
E607WN	750-1250	40	forty five-seventy six
E610WN	750-1250	40	75-one hundred thirty

Spare components and composition of our roots compressor:

Package deal of our Roots Compressor

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

Roots blower pack strategy same as iron circumstance, just adjust to Fumigation Totally free Plywood Scenario

Our manufacturing facility is a expert maker of Roots blowers which has in excess of 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 firm also has convenient site visitors 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 top merchandise of our firm is ESR -kind Roots Blower. The roots
vacuum pump is a new type of higher-performance roots blower, which is created independently dependent on the
domestic and international advanced systems. Several patented technologies have been adopted on Roots
Blower, and therefore we have made significant outcomes in vitality conservation and noise reduction, and many others.. So considerably, our
firm has invested much more than 30,000,000 RMB to introduce these kinds of advanced skilled equipment as
horizontal machining middle, vertical machining center, two-way CNC surface area planer, CNC lathe, CNC milling
machine, CNC planer, airplane grinder, cylindrical grinding device, and three coordinates tests device.
Aside from, we have taken different actions to standardize the approach flow these kinds of as doing work and cooperating
with numerous scientific research units, faculties and universities at property and abroad. We also continuously try to
take up and improve the domestic superior generation systems, so as to encourage the upgrading and
optimization of the solution and make the item high quality reach the innovative stage at property and abroad.
ESR -sort Roots Blower involves a number of collection such as Three-leaves Type, Two-leaves Sort and Centrifugal
Kind,which can be additional divided to hundreds of varieties. The products are extensively used in sewage therapy,
pneumatic conveying,vacuum packaging, aquaculture, foods processing, EPT energy, petrochemical, cement,
mining and other industries. Our items have these kinds of positive aspects as reduced sounds, energy preserving, stable high quality,
and extended services lifestyle, and many others.. With the sales outlets throughout the domestic funds metropolitan areas, our products promote effectively all
over the region, and have been exported to North The united states,Russia, Malaysia, Indonesia, Vietnam, South Africa
and some other international locations. Obtaining got the ISO9001 Intercontinental Top quality Method Certification, we have
proven and enhanced the top quality assurance of the items planning, production, and set up.
From the method of design and style, study and development to the finished products, we have acquired the complete
approach managed independently, as a result providing the complete foundation and reliability promise for the products balance
and durability. Obtaining a perfect sales community and soon after-revenue provider, we supply our clients with larger-
quality and much more efficient services.All personnel of our business sincerely welcome the wide masses of friends to
manual, and negotiate company with us.

Our Roots Blower Workshop

         Doosn Horzitonal Equipment Heart

The Software of the Roots Blower

Routine maintenance and inspection
(one) Examine all fasteners and finding pins conditions no matter whether they are loosening.
(2) Always examine whether the leakage phenomenon of the body.
(3) Shell out consideration to lubrication, quantity of grease and noises when running,
determine whether or not it operates underneath the required situations.
(four) 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 (synthetic lithium grease penetration 220-250, drop stage ≥
190ºC). Change the lubricant and grease soon after very first 200 several hours working, and substitute
once again following a moth operating. Later, change the lubricant and grease in accordance to the
surroundings and lubricant (grease) top quality propose a ideal EPT for three
months.
(five) Always check the inlet air filter, clear or change the filter in time.
(6) Blower overload at times not quickly shown, so pay interest to
the consumption and exhaust force, bearing temperature and the present enhance traits
of motor to determine regardless of whether the blower operates generally
(seven) Before disassembling the blower, the assembling relation and dimensions
must be recorded or measured, make marks on factors to guarantee the unique
needs right after assembling.
(eight) When freshly machine or overhaul, the oil tank need to be cleaned before use
and suggest substitute all grease soon after eight hours operating.

Widespread failure cause and troubleshooting

No	Failure	Feasible motives	Elimination strategies
1	Friction amongst the impeller	(1) Impurities on the impeller, ensuing in the hole is way too tiny (2) Equipment wear, resulting in a huge backlash (three) The equipment is not effectively fastened, can not preserve the impeller synchronization (four) Bearing dress in ensuing in clearance escalating.	(one) Eliminate dust and check no matter whether there is harm elements (two) Change the equipment hole, change the gears if the equipment backlash is increased than the common thirty% to fifty% (three)Re-assemble the gears, maintain the taper speak to location is to seventy five% (4)Replace the bearing
two	Collision amongst impeller and wall, the impeller top and casing	(1) Set up gap is not correct (2) functioning pressure is as well large, exceeding the specified value (3) Working temperature is way too substantial (four) Casing or base deformation, positioning fan failure (five) Bearing axial location is not great	(one) Adjust the hole (2) Identify leads to of overloading, diminished the pressure to the specified worth (three) Check out the installation precision and reduce the pipe rigidity (4) Verify and mend bearings, and to guarantee the clearance (5)Relocation
3	Temperature too high	(one) Oil in tank is also considerably, too thick or as well filthy (two) Filter or silencer is blocked (3)The strain is greater than the specified price (4)Excessive wear of the impeller, big gap (5)Inadequate ventilation, indoor temperature is higher, ensuing in inlet air’s large temperature (six) The rotating velocity is too reduced,result in the belt slipping.	(one)Reduce the oil level or rely on oil (two)Get rid of of blocking objects (three)Minimizing the pressure through the blower (four)Repair its clearance (5)Open vents to minimize room temperature (six) Enhance velocity to avert the belt slipping.
four	Inadequate circulation	(one) The inlet filter is blocked (two) Impeller dress in and the hole raises as well considerably (three) Belt slipping (4) Big imports strain loss (five) Pipeline ventilation leakage	(1) Thoroughly clean the filter dust and obstruction (two) Restore the hole (three)Tighten the belt and boost the number of belts (four)Modify the inlet stress to the specified price (5) Check and restore the pipeline
5	Oil leaking or oil leaking into the enclosure	(one)Large tank placement trigger leakage from the discharge port (2) Seal put on, ensuing in shaft oil spills (3) The force is increased than the specified worth	(1)Reduce the oil stage (2)Replace the seals (3)Obvious the air vents, 2mm diameter faucet is set in the middle chamber, open up the faucet below the wall
six	Irregular vibration and sounds	(1)Bearing clearance exceeds the specified benefit or bearing use (two) The gear backlash is too massive, not in a limited fastened (3) The international objects and dust triggered by the impeller and the impeller, the impeller and the housing collision (four) the impeller shaft deformation caused the collision brought on by overload, (five) Friction amongst the impeller and the inlet housing brought on by overheating (6) Unbalance of the impeller caused by fouling or foreign physique (7) Anchor bolts or other fasteners are loosened	(1)Exchange bearings or bearing seat (2)Reassemble equipment and make sure backlash (3)Cleaning blower, verify the circumstance is destroyed (4)Verify the again stress, check the wheel and alter gap (5)Check the filter and back pressure, increase the hole among the impeller inlet and the casing (6)Clean the impeller and the casing, to make certain that the impeller clearance operate (7) Tighten the anchor bolts and leveling the base.
seven	Motor overload	(one)In contrast with the essential stress, the strain distinction is large that the again strain or the inlet pressure is higher (2) Compared with the products requirements, blower circulation is also big, so its stress boosts (3)Inlet filter is blocked, or outlet pipe is obstructed or blocked (4) Collusion or friction (caught) rotating elements (5) The oil degree is as well high (six) Slender V-belt is overheat, vibration is too massive, or pulley is too modest	(1) Minimize the force to the specified value (two) Exhaust the excess fuel into the environment or decrease the blower speed (three) Get rid of the obstructions (4)Quickly shut down, examine the reason (5) Modify the oil to the right degree (6) Examine the belt rigidity, and changed it with huge diameter pulley.

Our Service

one. Pre promote service                                                                              2. After market service                                          
a. advocate the suitable model                                             c. on the internet complex support,                                                                                   
b. manufacturing facility tour                                                                              d. entire lifestyle spare parts and techinical help

Gurantee

12 months gurantee for our roots blowers
 

/ The use of first gear manufacturer’s (OEM) part numbers or emblems , e.g. CASE® and John Deere® are for reference needs only and for indicating item use and compatibility. Our firm and the outlined EPT parts contained herein are not sponsored, accepted, or produced by the OEM. /