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

We make all kinds of roots blower, centrifugal blower, Our Primary merchandise are as under:

Type	Diameter	Rate of movement	Pressure
ESR-MJ(Intensive Kind)	Φ50~Φ300mm	.5~140m³/min	9.8KPa~98.8Kpa
ESR(Ordinary Kind)	Φ50~Φ350mm	.5~140m³/min	nine.8KPa~78.4Kpa
ESR-H(Large-force Variety)	Φ50~Φ350mm	.seven~160m³/min	58.8KPa~98.8Kpa
ESR-V(Vacuum Pump)	Φ50~Φ350mm	.five~160m³/min	9.8KPa~fifty three.3Kpa
EL Series	Φ200~Φ600mm	20.three~750m³/min	9.8KPa~fifty eight.8Kpa
Multistage Centrifugal Blower or C-Sequence	Φ250~Φ500mm	50~500m³/min	nine.8KPa~98Kpa
ERR-ERG Sort	Φ250~Φ500mm	a hundred and twenty~420m³/min	9.8KPa~98.8Kpa

The operating principle 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 way of the action of a pair of
synchronous gears, the two rotors rotate in reverse directions 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
goal of blowing.

Attribute of our roots blower:
one. Huge adjustment of the air volume
2. Minimal Sound
three. Higher effectiveness
4. Low energy cosumption
5. Prolonged time existence
6. Trustworthy running, straightforward maintenance,little footprint

The parameters of our roots blower:

Variety	Ratary Velocity (r/min)	Strain Increase (Kpa)	Capability (m/min)	Shaft Electrical power (Kw)	Motor	Device Maximn Weight(Kg)
					Electrical power (Kw)
ESR-50	1100-2120	9.eight-58.eight	.sixty five-2.fifty eight	.three-3.54	.75-four	128-158
ESR-sixty five	1100-2130	nine.eight-58.eight	.94-three.66	.38-4.46	.75-five.5	a hundred and fifty five-185
ESR-eighty	1140-1900	nine.eight-fifty eight.eight	two.34-5.forty three	1.04-7.42	2.2-11	155-277
ESR-one hundred	1060-1980	9.8-58.8	4.57-nine.05	1.35-12.fifteen	3-15	309-377
ESR-one hundred twenty five	980-1850	9.8-fifty eight.8	five.35-twelve.4	1.sixty five-5.19	five.5-18.five	408-451
ESR-125C	970-1830	9.8-fifty eight.eight	seven.5-17.57	3.2-eighteen.five	4-22	408-451
ESR-150	810-1730	nine.eight-fifty eight.8	10.37-27.fifteen	three.eighty four-forty.eighty two	7.five-45	688-848
ESR-one hundred seventy five	970-1520	9.eight-fifty eight.eight	19.65-36.65	7.2-45.ninety five	eleven-55	980-1080
ESR-200B	740-1450	nine.eight-58.8	19.sixty five-forty four.8	10.15-60.forty four	15-seventy five	1272-1546
ESR-two hundred	810-1480	9.8-58.8	27.sixty five-59.two	8.05-eighty,12	fifteen-ninety	1272-1546
ESR-250B	1100-1480	nine.8-fifty eight.8	fifty four.77-77.fifty five	19.ninety seven-ninety.97	thirty-one hundred ten	1490-2454
ESR-250	990-1480	9.8-fifty eight.8	61.4-97.52	20.one-117.three	30-132	1490-2454
ESR-three hundred	990-1480	9.eight-58.8	87.one-138.one	26.four-167.8	37-185	3326-3446
ESR-350	730-1480	9.8-58.8	seventy eight.41-177.31		fifty five-250
ESR-50H	1230-2120	63.seven-ninety eight	.45-two.02	two.05-six.12	3-7.5	a hundred and sixty–a hundred and seventy
ESR-65H	1240-2130	sixty three.seven-98	.78-2.53	two.89-7.fifty five	four-eleven	198-230
ESR-80H	1140-1900	sixty three.seven-ninety eight	one.82-4.fifty five	4.09-ten.one	5.five-15	316-326
ESR-100H	1060-1980	63.seven-98	two.sixty five-eight.06	6.36-17.2	7.5-22	398-459
ESR-125H	980-1850	sixty three.seven-98	four.64-11.23	8.ninety two-24.two	eleven-thirty	544-630
ESR-150H	810-1730	63.7-98	9.53-25.seventy six	17.sixteen-65	18.5-75	752-1571
ESR-200H	810-1480	63.seven-98	twenty five.34-56.ninety two	forty two.34-120	fifty five-132	1426-1934
ESR-250H	990-1480	sixty three.7-ninety eight	58-ninety three.seven	eighty three.two-205	ninety-220	2980-3468
ESR300H	990-1480	sixty three.7-98	86.nine-134.1	114.seven-270	132-280	3476-3998
ERF-245	650-980	9.8-98	forty seven.5-97.4	16-183	18.five-200	3630-3690
ERF-250	650-980	nine.8-98	61.six-one hundred twenty.4	19-227	22-250	4450-4500
ERF-290	650-980	nine.8-78.4	ninety two.3-128	22-213	30-250	4890-4710
ERF-295	650-980	nine.8-seventy eight.four	ninety seven.3-152.five	23-227	thirty-250	4890-4880
ERF-297	650-980	nine.8-78.four	87.5-167.six	26-249	30-280	5330-5520
ERF-three hundred	650-980	9.eight-seventy eight.four	101.5-188.seven	29-278	37-315	5330-5520
ERF-350	650-980	nine.8-78.4	126-224.nine	34-249	45-280	5210-6470
ERG-three hundred	590-730	nine.8-98	128.three-196	38-362	forty five-four hundred	9440-15710
ERG-350	590-730	9.8-98	159.three-231.six	43-420	55-450	9700-1571
ERG-400	590-730	9.8-83.three	203.1-290.9	fifty two-449	seventy five-five hundred	10090-11390
ERG-445	590-730	nine.eight-seventy three.5	229.seven-327.eight	fifty eight-477	seventy five-560	10600-12230
ERG-450	590-730	nine.eight-73.5	262.4-366.two	64-496	75-560	10600-12230
ERG-500	590-730	9.8-sixty three.7	327.four-452.4	78-529	90-560	12790-14620
ERF-240-V	650-980	-9.eight- -forty nine	38.1-seventy eight	13-76	18.five-ninety	3420-3285
ERF-245-V	650-980	-nine.eight- -forty nine	47.five-97.four	16-ninety five	22-one hundred ten	3425-3360
ERF-250-V	650-980	-nine.8- -49	sixty three-a hundred and twenty	19-117	22-132	3910-3830
ERF-290-V	650-980	-9.8- -forty nine	72.6-144	22-136	thirty-160	4415-4270
ERF-295-V	650-980	-nine.eight- -49	76.six-152	23-145	thirty-one hundred sixty	4425-4485
ERF-297-V	650-980	-nine.8- -49	84.3-166.eight	26-one hundred sixty	30-one hundred eighty	5000-4980
ERF-300-V	650-980	-9.eight- -49	97-192	29-178	37-200	5000-4980
ERF-350-V	650-980	-nine.eight- -forty nine	116-225	34-209	forty five-250	5400-5700
ERG-300V	590-730	-nine.eight- -49	133-193	38-184	forty five-220	7800-9100
ERG-350V	590-730	-9.eight- -49	163-231	43-216	55-250	9500-9470
ERG-400V	590-730	-nine.eight- -forty nine	199-290	fifty two-269	75-315	9900-10130
ERG-445V	590-730	-nine.eight- -forty nine	224.eight-326.nine	58-303	75-355	9900-10130
ERG-450V	590-730	-9.8- -49	255-365	sixty four-335	75-four hundred	11230-11300
ERG-500V	590-730	-9.eight- -49	314-452	seventy eight-412	132-450	13630-13850
ERF-245W	650-980	-thirteen.3- -fifty three.three	53.five-one zero one	21.5-102	30-a hundred and ten	3630-3360
ERF-250W	650-980	-thirteen.3- -53.3	sixty nine-127	26.five-127	30-160	3985-4115
ERF-290W	650-980	-13.3- -fifty three.three	82.6-a hundred and fifty	30.five-149	37-185	4340-4580
ERF-295W	650-980	-13.three- -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	forty five-two hundred	5230-5130
ERF-300W	650-980	-13.three- -fifty three.3	109-195	forty-193	fifty five-220	5230-5130
ERF-350W	650-980	-13.3- -fifty three.3	129-230	50-230	seventy five-250	5840-5670
ERG-300W	590-730	-13.3- -53.three	142-197	fifty two-201	seventy five-220	9100-9000
ERF-350W	590-730	-13.3- -53.three	168-234.4	59-235.five	75-280	9500-9600
ERG-400W	590-730	-thirteen.3- -fifty three.three	220-276.6	71-292	90-315	9900-10130
ERG-445W	590-730	-13.three- -fifty three.3	244-294.six	eighty two-331	90-400	11230-11300
ERG450W	590-730	-thirteen.3- -53.3	275-368.five	ninety one-366	110-400	11230-11300
ETRF-250 (240,250)	650-980	98-196	64.eight-112	one hundred thirty five-355	a hundred and sixty-400	8700-8600
ETRF-295 (245,295)	650-980	ninety eight-196	80.eight-139	167-439	185-five hundred	9200-9100
ETRF-three hundred (245,295)	650-980	ninety eight-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	98-176.4	263-428	476-955	560-1000	24200-27600
ETRF-250W (240,250)	650-980	-53.3–eighty	72-121	75.6-121	90-a hundred and sixty	6100-6470
ETRF-295W (245/295)	650-980	-fifty three.3–eighty	93.8-154	99.5-186	110-220	7000-6400
ETRF-300W (2505/three hundred)	650-980	-53.3–eighty	116-189	one hundred fifteen-220	132-250	7750-7760
EL81WD	580-980	9.eight-58.eight	54.two-130	eighteen-151	forty five-185	3595
EL82WDB	580-980	9.8-58.8	seventy two.eight-161	22-191	forty five-220	3860
EL83WDA	580-980	nine.eight-fifty eight.nine	one hundred and one-213	28.5-202	forty five-220	4300
EL84WDA	580-980	nine.8-58.8	129-267	35.4-252	forty five-280	4720
EL93WDA	580-730	nine.eight-49	230-329	56.four-311	seventy five-355	7765
EL94WDA	580-730	9.8-49	263-373	64-353	75-four hundred	8130
EL95WDA	490-580	9.eight-fifty eight.eight	308-434	81.4-414	90-450	11500
EL96WDA	580	fifty eight.eight	381	497	560	11500
E397WN	1000-1650	40	5-9
E408WN	870-1650	forty	ten-22
E517WN	980-1580	40	twenty-thirty
E520WN	930-1550	forty	24-forty five
E607WN	750-1250	40	45-76
E610WN	750-1250	40	seventy five-130

Spare elements and structure of our roots blower:

Package of our Roots Blower

Pack into iron circumstance, two layer,blower human body and motor in reduce layer, inlet/out silencer and many others in upper layer

Roots blower pack method exact same as iron situation, just modify to Fumigation Free Plywood Scenario

Our factory is a specialist manufacturer of Roots blowers which has above twenty years’ experience in machinery
producing. It is situated in Xihu (West Lake) Dis. East Industrial Park, 50 kilometers to the east of Shan EPT provincial
funds— HangZhou. Our business also has handy site visitors transportation, as it is fifteen kilometers absent from
Diaozhen City station of HangZhou-HangZhou expressway, and thirty kilometers absent from East HangZhou station of
ZheJiang -ZheJiang expressway.The leading merchandise of our firm is ESR -kind Roots Blower. The roots
vacuum pump is a new type of substantial-performance roots blower, which is developed independently based on the
domestic and international sophisticated technologies. Several patented technologies have been adopted on Roots
Blower, and as a result we have made important outcomes in energy conservation and noise reduction, and many others.. So considerably, our
firm has invested a lot more than 30,000,000 RMB to introduce such sophisticated professional equipment as
horizontal machining centre, vertical machining heart, two-way CNC floor planer, CNC lathe, CNC milling
equipment, CNC planer, plane grinder, cylindrical grinding equipment, and 3 coordinates tests device.
Besides, we have taken various measures to standardize the process circulation this kind of as functioning and cooperating
with many scientific research units, schools and universities at property and overseas. We also constantly attempt to
absorb and boost the domestic sophisticated creation technologies, so as to advertise the upgrading and
optimization of the item and make the merchandise quality get to the superior amount at home and overseas.
ESR -type Roots Blower includes many sequence this kind of as A few-leaves Variety, Two-leaves Type and Centrifugal
Type,which can be more divided to hundreds of kinds. The merchandise are commonly utilised in sewage therapy,
pneumatic conveying,vacuum packaging, aquaculture, foodstuff processing, EPT electrical power, petrochemical, cement,
mining and other industries. Our merchandise have such positive aspects as minimal sound, power preserving, steady quality,
and lengthy services life, and many others.. With the revenue outlets throughout the domestic capital towns, our items offer effectively all
over the region, and have been exported to North America,Russia, Malaysia, Indonesia, Vietnam, South Africa
and some other countries. Having got the ISO9001 International Top quality System Certification, we have
established and improved the high quality assurance of the products developing, production, and set up.
From the method of style, investigation and advancement to the completed goods, we have got the total
process managed independently, therefore supplying the complete basis and dependability ensure for the items steadiness
and sturdiness. Having a perfect income network and right after-product sales service, we give our consumers with greater-
good quality and a lot more productive services.All staff of our firm sincerely welcome the broad masses of friends to
information, and negotiate business with us.

Our Roots Blower Workshop

         Doosn Horzitonal Device Middle

The Software of the Roots Blower

Upkeep and inspection
(1) Examine all fasteners and finding pins circumstances regardless of whether they are loosening.
(two) Always verify no matter whether the leakage phenomenon of the physique.
(three) Spend focus to lubrication, quantity of grease and noises when working,
decide whether it works beneath the needed circumstances.
(4) Lubricant & grease: The lubricant is for medium load industrial equipment oil
(quality 220, kinematic viscosity of 198 ~ 242mm2 / s 40ºC, flash level ≥ 200ºC)
The grease is butter (synthetic lithium grease penetration 220-250, drop stage ≥
190ºC). Exchange the lubricant and grease soon after very first two hundred several hours operating, and change
once again after a moth working. Afterwards, exchange the lubricant and grease in accordance to the
environment and lubricant (grease) high quality suggest a appropriate EPT for a few
months.
(five) Often check the inlet air filter, thoroughly clean or change the filter in time.
(6) Blower overload at times not quickly exhibited, so spend attention to
the consumption and exhaust force, bearing temperature and the current boost traits
of motor to figure out regardless of whether the blower works generally
(seven) Prior to disassembling the blower, the assembling relation and dimensions
should be recorded or calculated, make marks on elements to make sure the unique
specifications soon after assembling.
(8) When freshly device or overhaul, the oil tank must be cleaned just before use
and propose change all grease right after eight hrs working.

Widespread failure purpose and troubleshooting

No	Failure	Possible causes	Elimination techniques
1	Friction among the impeller	(1) Impurities on the impeller, ensuing in the gap is too tiny (2) Equipment dress in, resulting in a big backlash (3) The equipment is not effectively mounted, can not preserve the impeller synchronization (4) Bearing dress in ensuing in clearance increasing.	(one) Take away dust and check no matter whether there is hurt elements (2) Modify the gear hole, substitute the gears if the gear backlash is better than the typical 30% to 50% (3)Re-assemble the gears, maintain the taper speak to location is to seventy five% (four)Change the bearing
2	Collision in between impeller and wall, the impeller leading and casing	(1) Installation gap is not right (2) running force is also large, exceeding the specified value (3) Functioning temperature is also high (4) Casing or foundation deformation, positioning fan failure (5) Bearing axial location is not good	(one) Alter the hole (2) Recognize brings about of overloading, reduced the force to the specified worth (three) Verify the set up accuracy and decrease the pipe tension (four) Check out and repair bearings, and to make certain the clearance (5)Relocation
3	Temperature way too high	(1) Oil in tank is also a lot, also thick or as well filthy (2) Filter or silencer is blocked (three)The strain is higher than the specified value (4)Excessive dress in of the impeller, big gap (five)Bad air flow, indoor temperature is higher, resulting in inlet air’s large temperature (six) The rotating speed is also low,consequence in the belt slipping.	(1)Decrease the oil amount or rely on oil (two)Eliminate of blocking objects (three)Lowering the strain through the blower (4)Fix its clearance (5)Open up vents to minimize space temperature (six) Increase pace to stop the belt slipping.
4	Insufficient stream	(one) The inlet filter is blocked (2) Impeller dress in and the gap boosts as well significantly (three) Belt slipping (four) Huge imports pressure loss (5) Pipeline ventilation leakage	(one) Clear the filter dust and obstruction (2) Repair the hole (3)Tighten the belt and boost the number of belts (4)Alter the inlet force to the specified price (five) Check out and repair the pipeline
5	Oil leaking or oil leaking into the enclosure	(one)Substantial tank position lead to leakage from the discharge port (two) Seal wear, resulting in shaft oil spills (3) The force is larger than the specified price	(1)Minimize the oil amount (two)Change the seals (three)Clear the air vents, 2mm diameter faucet is set in the middle chamber, open up the faucet underneath the wall
6	Irregular vibration and sounds	(1)Bearing clearance exceeds the specified worth or bearing dress in (2) The equipment backlash is also large, not in a limited fastened (three) The international objects and dust brought on by the impeller and the impeller, the impeller and the housing collision (four) the impeller shaft deformation brought on the collision caused by overload, (5) Friction amongst the impeller and the inlet housing triggered by overheating (six) Unbalance of the impeller caused by fouling or international physique (seven) Anchor bolts or other fasteners are loosened	(1)Change bearings or bearing seat (2)Reassemble equipment and make sure backlash (three)Cleansing blower, check out the situation is broken (four)Check the back again pressure, check the wheel and modify hole (5)Verify the filter and again strain, improve the hole amongst the impeller inlet and the casing (six)Thoroughly clean the impeller and the casing, to guarantee that the impeller clearance work (7) Tighten the anchor bolts and leveling the base.
7	Motor overload	(one)In comparison with the needed stress, the force variation is massive that the back strain or the inlet stress is high (two) In comparison with the products specifications, blower circulation is as well huge, so its force boosts (3)Inlet filter is blocked, or outlet pipe is obstructed or blocked (4) Collusion or friction (trapped) rotating components (five) The oil degree is way too substantial (six) Narrow V-belt is overheat, vibration is way too massive, or pulley is also tiny	(one) Reduce the pressure to the specified benefit (two) Exhaust the excessive gas into the ambiance or reduce the blower pace (3) Remove the obstructions (4)Instantly shut down, check out the purpose (5) Adjust the oil to the appropriate degree (six) Examine the belt tension, and replaced it with huge diameter pulley.

Our Services

one. Pre market service                                                                              2. Right after market service                                          
a. recommend the ideal model                                             c. on the web technical assistance,                                                                                   
b. factory tour                                                                              d. total daily life spare components and techinical help

Gurantee

12 months gurantee for our roots blowers
 

/ The use of unique equipment manufacturer’s (OEM) element numbers or trademarks , e.g. CASE® and John Deere® are for reference reasons only and for indicating solution use and compatibility. Our company and the listed EPT areas contained herein are not sponsored, accredited, or produced by the OEM. /