Shanghai Royal Machinery Co.,Ltd

Shanghai Royal Machinery Co.,Ltd

Air compressors, air dryer, tank , line filters and other related compressed air machine supplier
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75kw Oil-Free Screw Air Blower
75kw Oil-Free Screw Air Blower
Product Description:

High Quality Industrial Oil Free Screw Air Blower for Sewage Treatment

General parameters of our screw blower:

  • Pressure: 0.4-1.2bar

  • Air flow: 3m3/min-72m3/min

  • Power: 5.5kw-185kw

What is a screw blower?

Blower type

Rotary screw blowers are positive displacement blowers with precision timing gears that maintain minute clearances between two intermeshing oil-free screw elements that never touch. ... In centrifugal blowers, also called turbo blowers, the energy is transferred from a rotating shaft to air or gas.

blower 2.png

Hitachi Technology Oil free Screw blower head:

What is the difference between a Roots blower and a screw blower?

The roots blower acts like a pump for the air as it goes into the motor, whereas thescrew blower is more like an air compressor in how it forces the atmosphere into the engine. ... The rotors on the screw blower are much different since they're designed to be more like the threads on a screw, hence the name screw blower.

Helical Screw Blower E.jpg

What are the advantages of a screw compressor?

They are good energy conservers – Rotary screw machines are generally energy efficient, and they generate less heat than normal air compressors. They consume less oil than other oil flooded air compressors. In addition, they have minimum oil carryovers.

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What is a screw compressor used for?

Rotary-screw compressors are generally used to supply compressed air for larger industrial applications. They are best applied in applications that have a continuous airdemand such as food packaging plants and automated manufacturing systems.

Wastewater treatment

  • ?Lowest aeration blower energy cost, representing 70% of the total operational cost.

  • Low downtime and low maintenance cost thanks to innovative screw blower technology.

  • Very wide fow and pressure operational range

Pneumatic conveying – dilute phase

  • Lowest energy cost, representing up to 80% of the blower life cycle cost.

  • Low downtime and low maintenance cost thanks to innovative screw blower technology.

Fermentation

• Lowest energy cost, representing up to 80% of the blower

life cycle cost.

• Low downtime and low maintenance cost thanks

to innovative screw blower technology.

• Very wide flow and pressure operational range.

Non-woven textile

• Adjustable flow in order to influence fiber characteristics.

• Energy-efficient blowers to come to the lowest

operational cost of this 24/7 continuous process.

• Point-of-use installation without

noise-preventing measures.

 

Small belt driven:

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Main parameters of our screw blower:

Model No.Discharge Pressure0.4bar0.5bar0.6bar0.7bar0.8bar0.9bar1bar1.1bar1.2bar
RM100-5.5Air flow(m3/h)253249248246244243241240239
Motor power(kw)5.57.57.57.57.511111111
RM100-5.5VSDAir flow(m3/h)287283281278276275273272271
Motor power(kw)5.57.57.5111111111115
RM100-7.5Air flow(m3/h)335330328325322321319317316
Motor power(kw)7.57.511111111151515
RM100-7.5VSDAir flow(m3/h)372366364361358357354352351
Motor power(kw)7.57.511111115151515
GF160-11Air flow(m3/h)570566565563560559557556555
Motor power(kw)1115151518.518.518.52222
GF160-11VSDAir flow(m3/h)664659657655652651649647646
Motor power(kw)11151518.518.522222230
GF160-15Air flow(m3/h)770765762760756755752750749
Motor power(kw)151518.518.52222303030
GF160-15VSDAir flow(m3/h)880874871868864863860857856
Motor power(kw)1518.518.5222230303030
GF160-18.5Air flow(m3/h)111111031100109610901090108510821080
Motor power(kw)18.52230303030373737
GF160-122Air flow(m3/h)128212731269126412581258125212491247
Motor power(kw)223030303737374545
GF160-22VSDAir flow(m3/h)145614461442143614291428142314181416
Motor power(kw)223030373745454555
Model No.Discharge Pressure0.4bar0.5bar0.6bar0.7bar0.8bar0.9bar1bar1.1bar1.2bar
RM200l-22Air flow(m3/h)122612201214120611991191118211731163
Motor power(kw)223030303737454545
RM200l-22VSDAir flow(m3/h)138613921385137813701362135313451336
Motor power(kw)223030373745454555
RM200l-30Air flow(m3/h)16371630.71623.31614.91606.51597.11586.615751616
Motor power(kw)303037374545555555
RM200l-30VSDAir flow(m3/h)186818611853184518361827181818081798
Motor power(kw)303745455555557575
RM200l-37Air flow(m3/h)210420982091208120712059204820352022
Motor power(kw)374545555555757575
RM200l-37VSDAir flow(m3/h)243524272417240723952382236923542339
Motor power(kw)374555557575757590
RM200l-45Air flow(m3/h)272827212711270126892676266326482633
Motor power(kw)455555757575909090
RM200l-45VSDAir flow(m3/h)292329152905289528822869285528402825
Motor power(kw)455575757575909090
RM200l-55Air flow(m3/h)297529642955294529362927292029122901
Motor power(kw)5575757575909090110
RM200l-55VSDAir flow(m3/h)341834073398338833793371336233553347
Motor power(kw)5575759090110110110110
RM200l-75Air flow(m3/h)392739153905389638873880387138643856
Motor power(kw)75759090110110110132132
RM200l-75VSDAir flow(m3/h)449544814469445444424431442244134405
Motor power(kw)759090110110132132132160
RM200l-90Air flow(m3/h)504150285017500549954983497049564948
Motor power(kw)90110110110132132160160160
RM200l-90VSDAir flow(m3/h)565156405627561456035590557755635551
Motor power(kw)90110132132132160160160185
RM200l-110Air flow(m3/h)609860856072606060476036602860206012
Motor power(kw)110110132132160160185185185

Direct driven:

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Energy saving compared to Roots blower:

  • Roots blower:

  • To deliver a flow of 1600 m³/hr (942 cfm) at a pressure of 0.8 bar(e) (11.6 psig),

    the tri-lobe blower consumes 61 kW (82 hp) on average

  • Oil free screw blower:

  • To deliver a flow of 1600 m³/hr (942 cfm) at a pressure of 0.8 bar(e) (11.6 psig),

    the screw blower consumes 43 kW (58 hp) on average.

Welcome to contact with us for more information.

2.5bar-3.5bar screw air compressors:

Model No.PowerPressureAir capacityOutlet connectWeightDimension(mm)
kwhpMpam3/minkgLWH
RM-30L/A22300.256.9DN50950135012201460
0.355.3
RM-50L/A37500.2512.6DN651500190014001630
0.359.5
RM-60L/A45600.2516DN651850190014001630
0.3513.5
RM-75L/A55750.2521.2DN802100210014001750
0.3516.8
RM-100L/A751000.2526.6DN802500286016401860
0.3521.2
RM-125L/A901250.2530.8DN1002800286016401860
0.3525.5
RM-150L/A1101500.2539.6DN1003500286016401860
0.3531.8
RM-175L/A1321750.2546DN1253700324020002150
0.3540.2
RM-220L/A1602200.2553DN1254800324020002150
0.3546.8
RM-250L/W1852500.2555.6DN1505300324020002150
0.3551.6
RM-270L/W2002700.2560.1DN1505500324020002150
0.3555.7
RM-300L/W2203000.2566.1DN1506500324020002150
0.3561.3