Elt-125 High Efficiency Low Engergy Roots Vacuum Pump

Elt-125 High Efficiency Low Engergy Roots Vacuum Pump

We make all sorts of roots blower, centrifugal blower, Our Major merchandise are as beneath:

Sort Diameter Fee of flow Stress
ESR-MJ(Intense Sort) Φ50~Φ300mm .5~140m³/min 9.8KPa~ninety eight.8Kpa
ESR(Ordinary Type) Φ50~Φ350mm .5~140m³/min nine.8KPa~78.4Kpa
ESR-H(High-pressure Variety) Φ50~Φ350mm .seven~160m³/min 58.8KPa~ninety eight.8Kpa
ESR-V(Vacuum Pump) Φ50~Φ350mm .five~160m³/min 9.8KPa~53.3Kpa
EL Collection Φ200~Φ600mm twenty.three~750m³/min 9.8KPa~fifty eight.8Kpa
Multistage Centrifugal Blower
or C-Sequence
Φ250~Φ500mm fifty~500m³/min nine.8KPa~98Kpa
ERR-ERG Variety Φ250~Φ500mm a hundred and twenty~420m³/min 9.8KPa~ninety eight.8Kpa

The working principle of the a few-blade roots blower: two 3-lobed rotors are arranged in the cavity, and the
suction port and the discharge port are opened on equally sides of the cavity. By means of 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 attain the
objective of blowing.

Attribute of our roots blower:
1. Huge adjustment of the air volume
2. Minimal Noise
three. Large efficiency
4. Reduced vitality cosumption
5. Long time lifestyle
six. Reputable running, straightforward maintenance,modest footprint

The parameters of our roots blower:

Sort Ratary Speed
Strain Rise
Shaft Electrical power
Motor Unit Maximn
ESR-50 1100-2120 9.eight-fifty eight.eight .sixty five-two.fifty eight .3-3.54 .seventy five-4 128-158
ESR-sixty five 1100-2130 9.8-fifty eight.eight .ninety four-3.66 .38-four.forty six .seventy five-5.five a hundred and fifty five-185
ESR-eighty 1140-1900 nine.8-58.8 two.34-5.43 1.04-7.42 2.two-eleven one hundred fifty five-277
ESR-100 1060-1980 9.eight-58.8 four.57-9.05 one.35-12.15 three-15 309-377
ESR-one hundred twenty five 980-1850 9.eight-58.eight five.35-twelve.4 one.65-five.19 5.5-eighteen.5 408-451
ESR-125C 970-1830 9.8-fifty eight.8 seven.5-17.fifty seven three.two-eighteen.five four-22 408-451
ESR-a hundred and fifty 810-1730 nine.8-fifty eight.eight 10.37-27.15 3.84-40.82 7.five-45 688-848
ESR-a hundred seventy five 970-1520 nine.8-fifty eight.eight 19.sixty five-36.65 seven.2-45.ninety five eleven-fifty five 980-1080
ESR-200B 740-1450 nine.eight-fifty eight.eight 19.sixty five-forty four.eight ten.fifteen-sixty.44 15-75 1272-1546
ESR-two hundred 810-1480 9.eight-fifty eight.8 27.65-59.two 8.05-80,12 fifteen-90 1272-1546
ESR-250B 1100-1480 9.eight-fifty eight.8 fifty four.77-77.55 19.97-ninety.97 30-a hundred and ten 1490-2454
ESR-250 990-1480 nine.8-58.eight sixty one.four-ninety seven.52 twenty.1-117.3 30-132 1490-2454
ESR-300 990-1480 9.8-58.8 87.1-138.1 26.4-167.eight 37-185 3326-3446
ESR-350 730-1480 nine.8-fifty eight.eight seventy eight.41-177.31   fifty five-250  
ESR-50H 1230-2120 sixty three.seven-ninety eight .forty five-two.02 2.05-6.12 3-7.five 160–a hundred and seventy
ESR-65H 1240-2130 63.seven-ninety eight .seventy eight-2.53 2.89-seven.fifty five 4-11 198-230
ESR-80H 1140-1900 63.seven-98 one.eighty two-4.55 four.09-10.1 five.5-fifteen 316-326
ESR-100H 1060-1980 sixty three.seven-98 2.65-8.06 6.36-17.2 seven.5-22 398-459
ESR-125H 980-1850 63.7-98 four.64-11.23 8.ninety two-24.2 11-30 544-630
ESR-150H 810-1730 63.seven-ninety eight nine.fifty three-twenty five.seventy six 17.sixteen-65 18.five-seventy five 752-1571
ESR-200H 810-1480 sixty three.7-98 twenty five.34-fifty six.ninety two forty two.34-120 55-132 1426-1934
ESR-250H 990-1480 sixty three.7-98 fifty eight-93.7 83.2-205 90-220 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.eight-ninety eight 47.5-ninety seven.4 16-183 eighteen.five-200 3630-3690
ERF-250 650-980 9.8-ninety eight 61.six-120.4 19-227 22-250 4450-4500
ERF-290 650-980 9.eight-78.4 ninety two.3-128 22-213 thirty-250 4890-4710
ERF-295 650-980 9.eight-seventy eight.4 ninety seven.3-152.five 23-227 thirty-250 4890-4880
ERF-297 650-980 nine.8-seventy eight.4 87.5-167.6 26-249 30-280 5330-5520
ERF-300 650-980 nine.8-seventy eight.4 one hundred and one.5-188.7 29-278 37-315 5330-5520
ERF-350 650-980 nine.eight-78.four 126-224.nine 34-249 45-280 5210-6470
ERG-three hundred 590-730 9.eight-ninety eight 128.3-196 38-362 45-400 9440-15710
ERG-350 590-730 9.eight-98 159.three-231.six 43-420 fifty five-450 9700-1571
ERG-400 590-730 9.8-eighty three.3 203.one-290.nine 52-449 75-500 10090-11390
ERG-445 590-730 nine.eight-seventy three.5 229.seven-327.8 58-477 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 nine.eight-sixty three.seven 327.4-452.4 78-529 ninety-560 12790-14620
ERF-240-V 650-980 -9.8- -49 38.one-seventy eight 13-76 eighteen.five-ninety 3420-3285
ERF-245-V 650-980 -9.eight- -49 47.5-ninety seven.four sixteen-95 22-one hundred ten 3425-3360
ERF-250-V 650-980 -9.eight- -forty nine sixty three-120 19-117 22-132 3910-3830
ERF-290-V 650-980 -9.8- -49 seventy two.six-one hundred forty four 22-136 30-a hundred and sixty 4415-4270
ERF-295-V 650-980 -nine.eight- -49 76.6-152 23-a hundred forty five 30-160 4425-4485
ERF-297-V 650-980 -nine.eight- -49 84.three-166.8 26-one hundred sixty 30-one hundred eighty 5000-4980
ERF-300-V 650-980 -nine.eight- -49 97-192 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 -nine.8- -forty nine 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 -9.8- -forty nine 199-290 fifty two-269 seventy five-315 9900-10130
ERG-445V 590-730 -9.8- -forty nine 224.eight-326.9 fifty eight-303 75-355 9900-10130
ERG-450V 590-730 -nine.8- -49 255-365 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-a hundred and one 21.5-102 30-a hundred and ten 3630-3360
ERF-250W 650-980 -13.three- -53.3 69-127 26.5-127 30-160 3985-4115
ERF-290W 650-980 -13.3- -fifty three.3 eighty two.6-one hundred fifty 30.5-149 37-185 4340-4580
ERF-295W 650-980 -13.3- -53.three 87-158 32-158 37-185 4440-4580
ERF-297W 650-980 -thirteen.three- -fifty three.three ninety five-174 36-174 forty five-200 5230-5130
ERF-300W 650-980 -thirteen.3- -fifty three.three 109-195 40-193 55-220 5230-5130
ERF-350W 650-980 -13.3- -53.three 129-230 fifty-230 75-250 5840-5670
ERG-300W 590-730 -13.three- -53.three 142-197 52-201 seventy five-220 9100-9000
ERF-350W 590-730 -13.three- -53.three 168-234.4 fifty nine-235.five seventy five-280 9500-9600
ERG-400W 590-730 -thirteen.3- -53.three 220-276.six 71-292 90-315 9900-10130
ERG-445W 590-730 -thirteen.3- -53.three 244-294.six 82-331 ninety-four hundred 11230-11300
ERG450W 590-730 -thirteen.3- -fifty three.3 275-368.5 91-366 110-400 11230-11300
650-980 ninety eight-196 64.8-112 a hundred thirty five-355 a hundred and sixty-400 8700-8600
650-980 98-196 eighty.eight-139 167-439 185-500 9200-9100
ETRF-three hundred
650-980 ninety eight-176.four 102-174 206-497 250-560 10320-10500
650-980 ninety eight-137.two 124-207 241-473 280-560 10700-11110
590-740 98-176.4 205-273 380-773 450-900 21350-24200
590-740 98-176.4 263-428 476-955 560-1000 24200-27600
650-980 -53.3–80 seventy two-121 seventy five.6-121 ninety-a hundred and sixty 6100-6470
650-980 -53.3–eighty 93.eight-154 ninety nine.five-186 a hundred and ten-220 7000-6400
650-980 -53.3–eighty 116-189 one hundred fifteen-220 132-250 7750-7760
EL81WD 580-980 nine.eight-58.eight fifty four.2-130 eighteen-151 forty five-185 3595
EL82WDB 580-980 9.8-fifty eight.8 seventy two.8-161 22-191 forty five-220 3860
EL83WDA 580-980 9.eight-58.9 101-213 28.five-202 45-220 4300
EL84WDA 580-980 nine.8-fifty eight.8 129-267 35.four-252 45-280 4720
EL93WDA 580-730 nine.8-forty nine 230-329 fifty six.four-311 75-355 7765
EL94WDA 580-730 nine.8-forty nine 263-373 64-353 75-400 8130
EL95WDA 490-580 9.eight-fifty eight.eight 308-434 81.four-414 90-450 11500
EL96WDA 580 fifty eight.8 381 497 560 11500
E397WN one thousand-1650 forty 5-nine      
E408WN 870-1650 40 ten-22      
E517WN 980-1580 forty twenty-30      
E520WN 930-1550 40 24-45      
E607WN 750-1250 40 45-76      
E610WN 750-1250 40 seventy five-a hundred thirty      

Spare areas and composition of our roots blower:

Package of our Roots Blower

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

Roots blower pack strategy identical as iron circumstance, just adjust to Fumigation Totally free Plywood Situation

Our factory is a professional manufacturer of Roots blowers which has over 20 years’ experience in machinery
manufacturing. It is positioned in Xihu (West Lake) Dis. East CZPT Park, fifty kilometers to the east of ZheJiang provincial
money— HangZhou. Our organization also has hassle-free traffic transportation, as it is 15 kilometers away from
Diaozhen Town station of HangZhou-HangZhou expressway, and thirty kilometers away from East HangZhou station of
ZheJiang -ZheJiang expressway.The leading item of our company is ESR -type Roots Blower. The roots
vacuum pump is a new kind of high-performance roots blower, which is produced independently primarily based on the
domestic and international advanced systems. A number of patented technologies have been adopted on Roots
Blower, and therefore we have created important results in energy conservation and noise reduction, etc.. So significantly, our
company has invested far more than thirty,000,000 RMB to introduce this kind of superior expert equipment as
horizontal machining center, vertical machining center, two-way CNC surface area planer, CNC lathe, CNC milling
device, CNC planer, plane grinder, cylindrical grinding equipment, and 3 coordinates screening machine.
Apart from, we have taken different actions to CZPTize the approach stream such as operating and cooperating
with numerous scientific research units, faculties and universities at home and abroad. We also continuously try to
absorb and improve the domestic superior creation technologies, so as to advertise the upgrading and
optimization of the solution and make the product top quality reach the superior degree at property and abroad.
ESR -sort Roots Blower consists of a number of sequence such as A few-leaves Sort, Two-leaves Variety and Centrifugal
Variety,which can be further divided to hundreds of kinds. The items are commonly used in sewage treatment method,
pneumatic conveying,vacuum packaging, aquaculture, food processing, electric electricity, petrochemical, cement,
mining and other industries. Our items have such benefits as lower sound, vitality saving, steady quality,
and extended provider existence, and so forth.. With the sales outlets throughout the domestic cash towns, our goods promote effectively all
over the nation, and have been exported to North The usa,Russia, Malaysia, Indonesia, Vietnam, South Africa
and some other nations. Having received the ISO9001 CZPT CZPT Technique Certification, we have
established and enhanced the quality assurance of the items developing, production, and set up.
From the approach of design, study and development to the concluded merchandise, we have got the whole
process controlled independently, as a result offering the complete foundation and reliability guarantee for the merchandise security
and durability. Getting a perfect revenue community and after-revenue support, we provide our customers with increased-
top quality and much more efficient provider.All workers of our firm sincerely welcome the broad masses of buddies to
guide, and negotiate organization with us.

Our Roots Blower Workshop

         Doosn Horzitonal CZPT Middle

The Application of the Roots Blower

Maintenance and inspection
(1) Check all fasteners and finding pins problems whether they are loosening.
(two) Usually check out whether the leakage phenomenon of the body.
(three) Spend interest to lubrication, amount of grease and noises when operating,
decide whether or not it operates under the required circumstances.
(4) CZPT & grease: The lubricant is for medium load industrial gear oil
(quality 220, kinematic viscosity of 198 ~ 242mm2 / s 40ºC, flash stage ≥ 200ºC)
The grease is butter (synthetic lithium grease penetration 220-250, fall stage ≥
190ºC). Exchange the lubricant and grease soon after initial 200 several hours managing, and exchange
yet again following a moth working. Later, replace the lubricant and grease in accordance to the
setting and lubricant (grease) top quality propose a suitable substitution for three
(5) Constantly examine the inlet air filter, clear or substitute the filter in time.
(six) Blower overload often not instantly exhibited, so pay attention to
the intake and exhaust force, bearing temperature and the current enhance tendencies
of motor to determine whether the blower operates generally
(7) Just before disassembling the blower, the assembling relation and proportions
should be recorded or measured, make marks on components to ensure the CZPT
specifications right after assembling.
(eight) When newly device or overhaul, the oil tank must be cleaned prior to use
and propose exchange all grease soon after eight hours managing.

Widespread failure reason and troubleshooting

No Failure Achievable factors Elimination methods
1 Friction
in between the
(1) Impurities on the impeller,
resulting in the hole is way too small
(2) Gear wear, ensuing in a
large backlash
(3) The equipment is not effectively fixed,
can not maintain the impeller
(four) Bearing dress in resulting in
clearance escalating.
(1) Get rid of dirt and check
no matter whether there is injury parts
(2) Alter the equipment gap, exchange
the gears if the equipment backlash is
higher than the average thirty% to
(3)Re-assemble the gears, hold
the taper make contact with region is to seventy five%
(four)Substitute the bearing
two Collision
impeller and
wall, the
impeller prime
and casing
(1) Set up hole is not appropriate
(2) operating stress is too
higher, exceeding the specified
(3) Operating temperature is as well substantial
(4) Casing or foundation deformation,
positioning enthusiast failure
(5) Bearing axial place is not very good
(one) Alter the gap
(2) Recognize triggers of
overloading, decreased the strain
to the specified value
(3) Check the installation
precision and lessen the pipe
(4) Check and restore bearings,
and to ensure the clearance
three Temperature
way too large
(one) Oil in tank is way too significantly, too
thick or way too dirty
(2) CZPT or silencer is blocked
(3)The stress is larger than
the specified value
(4)Too much wear of the
impeller, large gap
(5)Poor air flow, indoor
temperature is substantial, resulting in
inlet air’s high temperature
(6) The rotating pace is way too low,outcome in the belt slipping.
(1)Reduce the oil level or rely on
(2)Take away of blocking objects
(three)Lowering the stress via
the blower
(4)Mend its clearance
(five)Open vents to decrease place
(6) Boost velocity to avoid the
belt slipping.
4 Inadequate
(1) The inlet filter is blocked
(2) Impeller use and the gap
raises way too significantly
(3) Belt slipping
(4) Massive imports force decline
(five) CZPT ventilation leakage
(one) Clean the filter dust and
(2) Restore the gap
(3)Tighten the belt and increase
the number of belts
(4)Modify the inlet strain to the
specified worth
(5) Verify and fix the pipeline
five Oil leaking or
oil leaking
into the enclosure
(one)Large tank situation lead to
leakage from the discharge port
(two) Seal use, resulting in shaft oil spills
(3) The stress is greater than
the specified price

(one)Lessen the oil degree
(2)Replace the seals
(3)Distinct the air vents, 2mm diameter faucet is fastened in the
middle chamber, open the faucet
beneath the wall
six Abnormal
vibration and
(1)Bearing clearance exceeds the
specified price or bearing dress in
(2) The equipment backlash is too
massive, not in a restricted fastened
(3) The overseas objects and dust
induced by the impeller and the
impeller, the impeller and the
housing collision
(4) the impeller shaft
deformation brought on the collision
triggered by overload,
(5) Friction among the impeller
and the inlet housing triggered by
(six) Unbalance of the impeller
induced by fouling or overseas
(seven) CZPT bolts or other
fasteners are loosened
(1)Change bearings or bearing
(2)Reassemble gear and make certain
(3)Cleaning blower, examine the
circumstance is damaged
(four)Check the again stress, examine
the wheel and modify gap
(five)Examine the filter and back
force, improve the gap
in between the impeller inlet and the
(six)Thoroughly clean the impeller and the
casing, to ensure that the impeller
clearance perform
(7) Tighten the anchor bolts and
leveling the base.
seven Motor
(1)In comparison with the essential
force, the strain big difference
is big that the back again strain or
the inlet stress is substantial
(2) In comparison with the
tools needs, blower
circulation is also large, so its stress
(three)Inlet filter is blocked, or outlet
pipe is obstructed or blocked
(four) Collusion or friction (caught)
rotating components
(five) The oil level is as well large
(six) Slim V-belt is overheat,
vibration is as well large, or pulley
is as well little
(1) Minimize the stress to the
specified price
(2) Exhaust the excessive gas into
the environment or reduce the
blower speed
(3) Take away the obstructions
(4)Quickly shut down, check out
the cause
(five) Adjust the oil to the proper
(6) Examine the belt stress, and
changed it with massive diameter

Our Support

one. Pre market service                                                                              2. Soon after market service                                          
a. advise the ideal model                                             c. online specialized help,                                                                                   
b. manufacturing unit tour                                                                              d. total life spare parts and techinical support


twelve months gurantee for our roots blowers

Elt-125 High Efficiency Low Engergy Roots Vacuum Pump