We – EPG Group the largest couplings and gears factory in China with 5 different branches. For far more information: Mobile/whatsapp/telegram/Kakao us at: 0086-13083988828 /

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

Type	Diameter	Fee of stream	Strain
ESR-MJ(Intensive Kind)	Φ50~Φ300mm	.5~140m³/min	9.8KPa~98.8Kpa
ESR(Normal Type)	Φ50~Φ350mm	.five~140m³/min	9.8KPa~seventy eight.4Kpa
ESR-H(Large-stress Kind)	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	twenty.three~750m³/min	9.8KPa~58.8Kpa
Multistage Centrifugal Blower or C-Series	Φ250~Φ500mm	fifty~500m³/min	nine.8KPa~98Kpa
ERR-ERG Kind	Φ250~Φ500mm	120~420m³/min	nine.8KPa~ninety eight.8Kpa

The functioning theory of the a few-blade roots blower: two a few-lobed rotors are arranged in the cavity, and the
suction port and the discharge port are opened on equally sides of the cavity. Via 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
purpose of blowing.

Feature of our roots blower:
1. Huge adjustment of the air volume
2. Low Noise
three. Large effectiveness
4. Minimal strength cosumption
5. Extended time existence
six. Reliable operating, simple routine maintenance,little footprint

The parameters of our roots blower:

Variety	Ratary Pace (r/min)	Stress Increase (Kpa)	Potential (m/min)	Shaft Power (Kw)	Motor	Device Maximn Fat(Kg)
					Electrical power (Kw)
ESR-fifty	1100-2120	9.eight-fifty eight.eight	.65-two.58	.three-three.54	.seventy five-four	128-158
ESR-65	1100-2130	9.8-fifty eight.eight	.ninety four-3.sixty six	.38-4.forty six	.75-5.five	one hundred fifty five-185
ESR-eighty	1140-1900	nine.eight-fifty eight.8	2.34-5.forty three	1.04-seven.forty two	two.2-eleven	a hundred and fifty five-277
ESR-100	1060-1980	nine.8-fifty eight.8	4.57-nine.05	one.35-twelve.15	three-fifteen	309-377
ESR-one hundred twenty five	980-1850	9.eight-58.eight	5.35-12.four	1.65-five.19	5.five-18.five	408-451
ESR-125C	970-1830	nine.eight-58.eight	7.5-17.fifty seven	three.2-18.5	4-22	408-451
ESR-150	810-1730	9.8-fifty eight.8	10.37-27.15	three.84-40.82	seven.five-45	688-848
ESR-one hundred seventy five	970-1520	nine.eight-58.8	19.sixty five-36.65	seven.2-45.ninety five	11-fifty five	980-1080
ESR-200B	740-1450	nine.eight-fifty eight.8	19.65-44.8	ten.15-sixty.forty four	15-seventy five	1272-1546
ESR-two hundred	810-1480	9.8-fifty eight.8	27.65-fifty nine.2	eight.05-eighty,12	15-90	1272-1546
ESR-250B	1100-1480	9.eight-58.eight	54.77-seventy seven.55	19.ninety seven-90.ninety seven	thirty-a hundred and ten	1490-2454
ESR-250	990-1480	nine.8-fifty eight.8	61.four-97.52	twenty.one-117.3	30-132	1490-2454
ESR-300	990-1480	9.8-58.8	87.one-138.one	26.four-167.8	37-185	3326-3446
ESR-350	730-1480	nine.eight-fifty eight.8	78.forty one-177.31		fifty five-250
ESR-50H	1230-2120	sixty three.7-98	.forty five-2.02	two.05-six.twelve	three-seven.five	a hundred and sixty–a hundred and seventy
ESR-65H	1240-2130	sixty three.7-98	.seventy eight-2.fifty three	2.89-seven.55	4-11	198-230
ESR-80H	1140-1900	63.7-ninety eight	one.eighty two-4.fifty five	4.09-ten.1	5.five-15	316-326
ESR-100H	1060-1980	63.seven-ninety eight	two.sixty five-eight.06	six.36-17.two	seven.5-22	398-459
ESR-125H	980-1850	63.7-98	four.64-11.23	8.92-24.2	eleven-thirty	544-630
ESR-150H	810-1730	63.7-98	9.53-twenty five.seventy six	17.16-sixty five	18.five-seventy five	752-1571
ESR-200H	810-1480	sixty three.seven-98	twenty five.34-fifty six.ninety two	42.34-one hundred twenty	fifty five-132	1426-1934
ESR-250H	990-1480	sixty three.seven-98	58-ninety three.7	83.two-205	ninety-220	2980-3468
ESR300H	990-1480	63.seven-98	86.9-134.one	114.7-270	132-280	3476-3998
ERF-245	650-980	nine.eight-ninety eight	forty seven.5-97.4	16-183	18.5-200	3630-3690
ERF-250	650-980	nine.eight-98	sixty one.6-a hundred and twenty.four	19-227	22-250	4450-4500
ERF-290	650-980	9.eight-seventy eight.4	ninety two.3-128	22-213	30-250	4890-4710
ERF-295	650-980	9.8-seventy eight.four	97.three-152.five	23-227	thirty-250	4890-4880
ERF-297	650-980	9.eight-seventy eight.4	87.five-167.six	26-249	30-280	5330-5520
ERF-three hundred	650-980	9.eight-seventy eight.four	one zero one.5-188.seven	29-278	37-315	5330-5520
ERF-350	650-980	9.8-78.four	126-224.nine	34-249	forty five-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-ninety eight	159.3-231.six	43-420	55-450	9700-1571
ERG-400	590-730	nine.eight-eighty three.3	203.one-290.9	52-449	seventy five-500	10090-11390
ERG-445	590-730	nine.eight-seventy three.5	229.7-327.eight	fifty eight-477	75-560	10600-12230
ERG-450	590-730	nine.eight-73.5	262.4-366.two	64-496	seventy five-560	10600-12230
ERG-500	590-730	9.8-sixty three.7	327.4-452.4	seventy eight-529	90-560	12790-14620
ERF-240-V	650-980	-9.eight- -49	38.1-seventy eight	thirteen-seventy six	18.5-90	3420-3285
ERF-245-V	650-980	-nine.8- -49	47.five-ninety seven.4	16-ninety five	22-a hundred and ten	3425-3360
ERF-250-V	650-980	-nine.8- -49	sixty three-120	19-117	22-132	3910-3830
ERF-290-V	650-980	-9.8- -forty nine	72.6-144	22-136	thirty-one hundred sixty	4415-4270
ERF-295-V	650-980	-nine.eight- -forty nine	seventy six.6-152	23-a hundred forty five	30-a hundred and sixty	4425-4485
ERF-297-V	650-980	-9.8- -forty nine	84.three-166.eight	26-one hundred sixty	30-180	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- -forty nine	116-225	34-209	forty five-250	5400-5700
ERG-300V	590-730	-9.8- -forty nine	133-193	38-184	forty five-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	fifty two-269	75-315	9900-10130
ERG-445V	590-730	-nine.eight- -forty nine	224.8-326.nine	fifty eight-303	seventy five-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	-nine.eight- -forty nine	314-452	seventy eight-412	132-450	13630-13850
ERF-245W	650-980	-thirteen.three- -53.three	53.5-one zero one	21.5-102	thirty-110	3630-3360
ERF-250W	650-980	-13.3- -fifty three.3	sixty nine-127	26.5-127	thirty-one hundred sixty	3985-4115
ERF-290W	650-980	-thirteen.3- -53.three	eighty two.6-a hundred and fifty	30.5-149	37-185	4340-4580
ERF-295W	650-980	-13.3- -53.3	87-158	32-158	37-185	4440-4580
ERF-297W	650-980	-thirteen.3- -53.3	95-174	36-174	45-two hundred	5230-5130
ERF-300W	650-980	-13.3- -fifty three.3	109-195	40-193	55-220	5230-5130
ERF-350W	650-980	-thirteen.three- -fifty three.3	129-230	fifty-230	75-250	5840-5670
ERG-300W	590-730	-thirteen.3- -53.three	142-197	52-201	75-220	9100-9000
ERF-350W	590-730	-13.3- -fifty three.three	168-234.4	59-235.five	75-280	9500-9600
ERG-400W	590-730	-thirteen.three- -fifty three.3	220-276.six	71-292	90-315	9900-10130
ERG-445W	590-730	-thirteen.3- -fifty three.three	244-294.six	82-331	ninety-four hundred	11230-11300
ERG450W	590-730	-thirteen.3- -53.3	275-368.5	91-366	110-four hundred	11230-11300
ETRF-250 (240,250)	650-980	98-196	64.eight-112	135-355	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.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-400 (300,four hundred)	590-740	98-176.4	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	-fifty three.3–eighty	72-121	75.6-121	ninety-160	6100-6470
ETRF-295W (245/295)	650-980	-53.3–eighty	ninety three.8-154	ninety nine.five-186	110-220	7000-6400
ETRF-300W (2505/three hundred)	650-980	-53.three–eighty	116-189	115-220	132-250	7750-7760
EL81WD	580-980	9.eight-58.8	54.two-130	eighteen-151	forty five-185	3595
EL82WDB	580-980	9.8-fifty eight.8	seventy two.8-161	22-191	45-220	3860
EL83WDA	580-980	nine.eight-fifty eight.nine	one zero one-213	28.five-202	forty five-220	4300
EL84WDA	580-980	9.8-fifty eight.8	129-267	35.four-252	45-280	4720
EL93WDA	580-730	nine.8-49	230-329	fifty six.4-311	75-355	7765
EL94WDA	580-730	nine.eight-49	263-373	64-353	75-400	8130
EL95WDA	490-580	9.8-58.eight	308-434	eighty one.4-414	ninety-450	11500
EL96WDA	580	58.8	381	497	560	11500
E397WN	a thousand-1650	forty	five-nine
E408WN	870-1650	forty	10-22
E517WN	980-1580	forty	twenty-30
E520WN	930-1550	forty	24-45
E607WN	750-1250	40	forty five-76
E610WN	750-1250	40	75-one hundred thirty

Spare components and framework of our roots blower:

Package deal of our Roots Blower

Pack into iron circumstance, two layer,blower human body and motor in lower layer, inlet/out silencer and so forth in upper layer

Roots blower pack technique identical as iron case, just alter to Fumigation Free of charge Plywood Scenario

Our manufacturing unit is a skilled producer of Roots blowers which has over twenty years’ experience in machinery
producing. It is found in Xihu (West Lake) Dis. East Industrial Park, fifty kilometers to the east of Shan EPT provincial
funds— HangZhou. Our organization also has convenient traffic transportation, as it is 15 kilometers absent from
Diaozhen City station of HangZhou-HangZhou expressway, and thirty kilometers absent from East HangZhou station of
ZheJiang -ZheJiang expressway.The foremost merchandise of our firm is ESR -sort Roots Blower. The roots
vacuum pump is a new sort of higher-performance roots blower, which is produced independently dependent on the
domestic and overseas innovative technologies. A number of patented technologies have been adopted on Roots
Blower, and thus we have manufactured important consequences in energy conservation and noise reduction, and many others.. So significantly, our
firm has invested more than 30,000,000 RMB to introduce such sophisticated specialist products as
horizontal machining center, vertical machining centre, two-way CNC surface area planer, CNC lathe, CNC milling
machine, CNC planer, plane grinder, cylindrical grinding machine, and a few coordinates tests device.
In addition to, we have taken a variety of steps to standardize the method circulation these kinds of as operating and cooperating
with many scientific research units, faculties and universities at house and abroad. We also continually try out to
soak up and increase the domestic innovative production systems, so as to promote the upgrading and
optimization of the item and make the solution quality achieve the innovative stage at home and abroad.
ESR -variety Roots Blower involves many sequence this kind of as Three-leaves Variety, Two-leaves Kind and Centrifugal
Sort,which can be further divided to hundreds of versions. The products are widely employed in sewage treatment method,
pneumatic conveying,vacuum packaging, aquaculture, meals processing, EPT power, petrochemical, cement,
mining and other industries. Our merchandise have this kind of positive aspects as low noise, power conserving, steady good quality,
and lengthy services daily life, and so forth.. With the income outlets throughout the domestic money metropolitan areas, our merchandise promote properly all
in excess of the place, and have been exported to North The us,Russia, Malaysia, Indonesia, Vietnam, South Africa
and some other nations around the world. Possessing received the ISO9001 International High quality Method Certification, we have
set up and enhanced the quality assurance of the items creating, producing, and set up.
From the approach of style, investigation and growth to the finished goods, we have acquired the whole
procedure controlled independently, therefore delivering the full basis and reliability ensure for the goods stability
and durability. Having a perfect product sales community and right after-income provider, we offer our customers with greater-
top quality and much more efficient service.All employees of our firm sincerely welcome the broad masses of friends to
guide, and negotiate business with us.

Our Roots Blower Workshop

         Doosn Horzitonal Machine Center

The Application of the Roots Blower

Maintenance and inspection
(1) Verify all fasteners and locating pins situations no matter whether they are loosening.
(2) Always check out regardless of whether the leakage phenomenon of the physique.
(three) Shell out attention to lubrication, volume of grease and noises when running,
determine regardless of whether it functions beneath the needed problems.
(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, drop point ≥
190ºC). Change the lubricant and grease right after very first two hundred hrs operating, and substitute
yet again following a moth operating. Later on, substitute the lubricant and grease according to the
setting and lubricant (grease) good quality propose a appropriate EPT for 3
months.
(5) Often verify the inlet air filter, clean or exchange the filter in time.
(six) Blower overload at times not quickly exhibited, so shell out focus to
the consumption and exhaust force, bearing temperature and the existing improve traits
of motor to determine whether the blower functions generally
(7) Ahead of disassembling the blower, the assembling relation and proportions
must be recorded or calculated, make marks on factors to make sure the first
demands soon after assembling.
(eight) When freshly equipment or overhaul, the oil tank ought to be cleaned ahead of use
and propose change all grease soon after eight hrs operating.

Typical failure explanation and troubleshooting

No	Failure	Achievable reasons	Elimination techniques
one	Friction among the impeller	(one) Impurities on the impeller, resulting in the hole is way too small (2) Gear wear, ensuing in a large backlash (three) The gear is not well fastened, can not keep the impeller synchronization (4) Bearing use ensuing in clearance growing.	(one) Remove dirt and verify whether there is hurt parts (2) Adjust the equipment hole, exchange the gears if the gear backlash is greater than the average thirty% to fifty% (3)Re-assemble the gears, hold the taper speak to region is to 75% (4)Replace the bearing
2	Collision amongst impeller and wall, the impeller best and casing	(1) Installation gap is not appropriate (2) operating strain is too large, exceeding the specified benefit (3) Functioning temperature is way too higher (four) Casing or foundation deformation, positioning enthusiast failure (5) Bearing axial spot is not great	(one) Change the gap (two) Identify leads to of overloading, lowered the pressure to the specified price (three) Examine the installation precision and lessen the pipe tension (4) Examine and fix bearings, and to guarantee the clearance (five)Relocation
three	Temperature too substantial	(1) Oil in tank is way too a lot, also thick or as well soiled (two) Filter or silencer is blocked (three)The pressure is greater than the specified price (four)Abnormal put on of the impeller, massive gap (five)Bad air flow, indoor temperature is substantial, resulting in inlet air’s substantial temperature (six) The rotating pace is way too lower,result in the belt slipping.	(1)Minimize the oil amount or rely on oil (2)Eliminate of blocking objects (3)Lowering the pressure via the blower (four)Mend its clearance (five)Open up vents to minimize place temperature (six) Improve velocity to prevent the belt slipping.
4	Inadequate flow	(one) The inlet filter is blocked (2) Impeller put on and the hole raises way too a lot (3) Belt slipping (four) Large imports force loss (five) Pipeline ventilation leakage	(1) Clear the filter dust and obstruction (2) Restore the gap (three)Tighten the belt and increase the amount of belts (4)Adjust the inlet strain to the specified benefit (five) Check and mend the pipeline
five	Oil leaking or oil leaking into the enclosure	(one)Substantial tank position trigger leakage from the discharge port (two) Seal put on, ensuing in shaft oil spills (3) The strain is greater than the specified benefit	(1)Lessen the oil stage (2)Change the seals (three)Distinct the air vents, 2mm diameter faucet is mounted in the middle chamber, open up the faucet underneath the wall
six	Abnormal vibration and noise	(one)Bearing clearance exceeds the specified worth or bearing put on (two) The equipment backlash is way too large, not in a limited fastened (3) The foreign objects and dust triggered by the impeller and the impeller, the impeller and the housing collision (4) the impeller shaft deformation triggered the collision brought on 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 body (seven) Anchor bolts or other fasteners are loosened	(one)Exchange bearings or bearing seat (two)Reassemble equipment and make sure backlash (three)Cleansing blower, examine the case is ruined (four)Examine the back force, verify the wheel and modify hole (five)Check the filter and again pressure, boost the gap among the impeller inlet and the casing (6)Cleanse the impeller and the casing, to make sure that the impeller clearance operate (7) Tighten the anchor bolts and leveling the base.
seven	Motor overload	(1)In comparison with the necessary pressure, the strain difference is massive that the back again pressure or the inlet force is higher (2) When compared with the equipment needs, blower flow is as well huge, so its force boosts (3)Inlet filter is blocked, or outlet pipe is obstructed or blocked (four) Collusion or friction (stuck) rotating elements (5) The oil degree is way too substantial (six) Narrow V-belt is overheat, vibration is as well big, or pulley is too small	(one) Reduce the strain to the specified value (2) Exhaust the excessive gasoline into the atmosphere or lessen the blower speed (three) Eliminate the obstructions (four)Immediately shut down, examine the cause (5) Change the oil to the appropriate degree (six) Examine the belt rigidity, and changed it with big diameter pulley.

Our Provider

1. Pre sell service                                                                              two. Following offer service                                          
a. recommend the ideal model                                             c. online specialized support,                                                                                   
b. manufacturing unit tour                                                                              d. entire life spare elements and techinical assistance

Gurantee

twelve months gurantee for our roots blowers
 

/ The use of authentic tools manufacturer’s (OEM) portion quantities or logos , e.g. CASE® and John Deere® are for reference purposes only and for indicating merchandise use and compatibility. Our firm and the outlined EPT areas contained herein are not sponsored, approved, or produced by the OEM. /