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Diameter 250mm ETSR250 Roots Blower

Product Details

Product Details

Product Description

Product Description
1. Introduction
This type three lobe Roots blower is a self-developed new product on the basis of absorbing international advanced technology, which has low power consumption, low noise, excellent performance and low maintenance costs properties. Advanced CAD design tools, process technology and sophisticated CNC equipments are used in product development. This product is widely applicable for metallurgy, chemical industry, light industry, building materials, mining, textiles, pneumatic conveying, sewage treatment, ceramics and other industrial sectors.
2. Characteristics
(1) Large flow and pressure range, wide application, high quality, low price.
(2) Special complex linear envelope vane wheel is used in this product, which
has good gear engage, less leakage and pressure pulse, low noise and high efficiency.
(3) Special shape is designed in the rotor, enhancing shaft rigidity and improving
the blower’s boost
(4) Synchronous gears are made of high quality alloy steel by precision
machining, which relieve the mechanical driving noise effectively.
(5) The rotating parts are all balancing tested rigorously and the product has
almost no vibrations.
(6) Reasonable structure is designed to cooling the blower, effectively improving
the gear and bearing life.
(7) The blower has compact & simple structure, easily for maintenance and repair.
3. Working principle
The two rotors rotate in the opposite directions driven by the synchronous gears and there is appropriate clearance between the two impellers and blower cabinet, which forms air intake cavity. With the rotor rotation, the air is transferred from air intake cavity to air discharge cavity without being compressed, and then exhausts which causes blowing.
TypeRatary Speed
(r/min)		Pressure Rise
(Kpa)		Capacity
(m/min)		Shaft Power
(Kw)		MotorUnit Maximn
Weight(Kg)
TypePower(Kw)
ESR-501100-21209.8-58.80.65-2.580.3-3.54
0.75-4128-158
ESR-651100-21309.8-58.80.94-3.660.38-4.46
0.75-5.5155-185
ESR-801140-19009.8-58.82.34-5.431.04-7.42
2.2-11155-277
ESR-1001060-19809.8-58.84.57-9.051.35-12.15
3-15309-377
ESR-125980-18509.8-58.85.35-12.41.65-5.19
5.5-18.5408-451
ESR-125C970-18309.8-58.87.5-17.573.2-18.5
4-22408-451
ESR-150810-17309.8-58.810.37-27.153.84-40.82
7.5-45688-848
ESR-175970-15209.8-58.819.65-36.657.2-45.95
11-55980-1080
ESR-200B740-14509.8-58.819.65-44.810.15-60.44
15-751272-1546
ESR-200810-14809.8-58.827.65-59.28.05-80,12
15-901272-1546
ESR-250B1100-14809.8-58.854.77-77.5519.97-90.97
30-1101490-2454
ESR-250990-14809.8-58.861.4-97.5220.1-117.3
30-1321490-2454
ESR-300990-14809.8-58.887.1-138.126.4-167.8
37-1853326-3446
ESR-350730-14809.8-58.878.41-177.31

55-250
ESR-50H1230-212063.7-980.45-2.022.05-6.12
3-7.5160--170
ESR-65H1240-213063.7-980.78-2.532.89-7.55
4-11198-230
ESR-80H1140-190063.7-981.82-4.554.09-10.1
5.5-15316-326
ESR-100H1060-198063.7-982.65-8.066.36-17.2
7.5-22398-459
ESR-125H980-185063.7-984.64-11.238.92-24.2
11-30544-630
ESR-150H810-173063.7-989.53-25.7617.16-65
18.5-75752-1020
ESR-200H810-148063.7-9825.34-56.9242.34-120
55-1321426-1934
ESR-250H990-148063.7-9858-93.783.2-205
90-2202980-3468
ESR300H990-148063.7-9886.9-134.1114.7-270
132-2803476-3998
ERF-245650-9809.8-9847.5-97.416-183
18.5-2003630-3690
ERF-250650-9809.8-9861.6-120.419-227
22-2504450-4500
ERF-290650-9809.8-78.492.3-12822-213
30-2504890-4710
ERF-295650-9809.8-78.497.3-152.523-227
30-2504890-4880
ERF-297650-9809.8-78.487.5-167.626-249
30-2805330-5520
ERF-300650-9809.8-78.4101.5-188.729-278
37-3155330-5520
ERF-350650-9809.8-78.4126-224.934-249
45-2805210-6470
ERG-300590-7309.8-98128.3-19638-362
45-4009440-10100
ERG-350590-7309.8-98159.3-231.643-420
55-4509700-10750
ERG-400590-7309.8-83.3203.1-290.952-449
75-50010090-11390
ERG-445590-7309.8-73.5229.7-327.858-477
75-56010600-12230
ERG-450590-7309.8-73.5262.4-366.264-496
75-56010600-12230
ERG-500590-7309.8-63.7327.4-452.478-529
90-56012790-14620
ERF-240-V650-980-9.8- -4938.1-7813-76
18.5-903420-3285
ERF-245-V650-980-9.8- -4947.5-97.416-95
22-1103425-3360
ERF-250-V650-980-9.8- -4963-12019-117
22-1323910-3830
ERF-290-V650-980-9.8- -4972.6-14422-136
30-1604415-4270
ERF-295-V650-980-9.8- -4976.6-15223-145
30-1604425-4485
ERF-297-V650-980-9.8- -4984.3-166.826-160
30-1805000-4980
ERF-300-V650-980-9.8- -4997-19229-178
37-2005000-4980
ERF-350-V650-980-9.8- -49116-22534-209
45-2505400-5700
ERG-300V590-730-9.8- -49133-19338-184
45-2207800-9100
ERG-350V590-730-9.8- -49163-23143-216
55-2509500-9470
ERG-400V590-730-9.8- -49199-29052-269
75-3159900-10130
ERG-445V590-730-9.8- -49224.8-326.958-303
75-3559900-10130
ERG-450V590-730-9.8- -49255-36564-335
75-40011230-11300
ERG-500V590-730-9.8- -49314-45278-412
132-45013630-13850
ERF-245W650-980-13.3- -53.353.5-10121.5-102
30-1103630-3360
ERF-250W650-980-13.3- -53.369-12726.5-127
30-1603985-4115
ERF-290W650-980-13.3- -53.382.6-15030.5-149
37-1854340-4580
ERF-295W650-980-13.3- -53.387-15832-158
37-1854440-4580
ERF-297W650-980-13.3- -53.395-17436-174
45-2005230-5130
ERF-300W650-980-13.3- -53.3109-19540-193
55-2205230-5130
ERF-350W650-980-13.3- -53.3129-23050-230
75-2505840-5670
ERG-300W590-730-13.3- -53.3142-19752-201
75-2209100-9000
ERF-350W590-730-13.3- -53.3168-234.459-235.5
75-2809500-9600
ERG-400W590-730-13.3- -53.3220-276.671-292
90-3159900-10130
ERG-445W590-730-13.3- -53.3244-294.682-331
90-40011230-11300
ERG450W590-730-13.3- -53.3275-368.591-366
110-40011230-11300
ETRF-250
(240、250）		650-98098-19664.8-112135-355
160-4008700-8600
ETRF-295
(245、295）		650-98098-19680.8-139167-439
185-5009200-9100
ETRF-300
(245、295）		650-98098-176.4102-174206-497
250-56010320-10500
ETRF-350
(245、295）		650-98098-137.2124-207241-473
280-56010700-11110
ETRG-400
(300、400）		590-74098-176.4205-273380-773
450-90021350-24200
ETRG-450
(350、450）		590-74098-176.4263-428476-955
560-100024200-27600
ETRF-250W
(240、250）		650-980-53.3--8072-12175.6-121
90-1606100-6470
ETRF-295W
(245/295)		650-980-53.3--8093.8-15499.5-186
110-2207000-6400
ETRF-300W
(2505/300)		650-980-53.3--80116-189115-220
132-2507750-7760
EL81WD580-9809.8-58.854.2-13018-151
45-1853595
EL82WDB580-9809.8-58.872.8-16122-191
45-2203860
EL83WDA580-9809.8-58.9101-21328.5-202
45-2204300
EL84WDA580-9809.8-58.8129-26735.4-252
45-2804720
EL93WDA580-7309.8-49230-32956.4-311
75-3557765
EL94WDA580-7309.8-49263-37364-353
75-4008130
EL95WDA490-5809.8-58.8308-43481.4-414
90-45011500
EL96WDA58058.8381497
56011500
E397WN1000-1650405-9



E408WN870-16504010-22



E517WN980-15804020-30



E520WN930-15504024-45



E607WN750-12504045-76



E610WN750-12504075-130




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