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Highly-efficient screw rotor profile Y-4, exclusively developed for blast blowers.

Multiple Vi (volume ratio) design, aimed at the demands of different pressure working conditions, providing the main engine with the best efficiency. Precision synchronizer gears, higher efficiency and higher reliability.

Highly-efficient motor, a large starting torque.

Air intake filter---high-efficiency low pressure ?drop, air inflow and outflow silencer design, plus acoustic enclosure, lower noise.

Complete system design, including air filter, silencer, main engine, motor, starting cabinet, control system, lubricating system, cooling system, acoustic enclosure and base.

Forced lubricating system, more steady and reliable operation of main engine.

Kaishan smart controller, colored touch screen, image-text display, friendly interface, simple and easy operation.

The pressure/ volume diagram of screw blast blower

Energy consumption / Energy saving

◆ Thermodynamic energy consumption

◆ Energy saving

4→1: Suction

1→2: Internal compression. Intermeshing of opposing rotors, decrease of volume between teeth, and increase of pressure.

2→3: Exhausting. The air is discharged from the pipe.

The pressure/ volume diagram of Root's blast blower

Energy consumption

◆ Thermodynamic energy consumption

4→1: Suction

1→2: The air volume remains unchanged. Air is compressed outside due to the backpressure of pipe network.

2→3: Exhausting. The air is discharged from the pipe.

NO.

Rotating speed sequence

Working pressure(bar)

0.3

0.4

0.5

0.6

0.7

0.8

0.9

1.0

1.1

1.2

GF100

1

Flow(m³/hr)

258

253

249

248

246

244

243

241

240

239

Motor power(kW)

4

5.5

7.5

7.5

7.5

7.5

11

11

11

11

2

Flow(m³/hr)

292

287

283

281

278

276

275

273

272

271

Motor power(kW)

4

5.5

7.5

7.5

11

11

11

11

11

15

3

Flow(m³/hr)

341

335

330

328

325

322

321

319

317

316

Motor power(kW)

5.5

7.5

7.5

11

11

11

11

15

15

15

4

Flow(m³/hr)

379

372

366

364

361

358

357

354

352

351

Motor power(kW)

5.5

7,5

7.5

11

11

11

15

15

15

15

5

Flow(m³/hr)

417

410

404

401

398

394

393

390

388

387

Motor power(kW)

5.5

7.5

11

11

11

15

15

15

15

18.5

6

Flow(m³/hr)

465

457

450

447

443

440

438

435

433

431

Motor power(kW)

7.5

7.5

11

11

15

15

15

15

18.5

18.5

7

Flow(m³/hr)

523

514

506

503

498

494

492

489

486

484

Motor power(kW)

7.5

11

11

15

15

15

18.5

18.5

18.5

22

NO.

Rotating speed sequence

Working pressure(bar)

0.3

0.4

0.5

0.6

0.7

0.8

0.9

1‘0

1.1

1.2

GF160

1

Flow(m³/hr)

576

570

566

565

563

560

559

557

556

555

Motor power(kW)

7.5

11

15

15

15

18.5

18.5

18.5

22

22

2

Flow(m³/hr)

670

664

659

657

655

652

651

649

647

646

Motor power(kW)

11

11

15

15

18.5

18.5

22

22

22

30

3

Flow(m³/hr)

777

770

765

762

760

756

755

752

750

749

Motor power(kW)

11

15

15

18.5

18.5

22

22

30

30

30

4

Flow(m³/hr)

888

880

874

871

868

864

863

860

857

856

Motor power(kW)

11

15

18.5

18.5

22

22

30

30

30

30

5

Flow(m³/hr)

1009

1000

992

990

986

981

981

977

974

972

Motor power(kW)

15

15

18.5

22

30

30

30

30

37

37

6

Flow(m³/hr)

1121

1111

1103

1100

1096

1090

1090

1085

1082

1080

Motor power(kW)

15

18.5

22

30

30

30

30

37

37

37

7

Flow(m³/hr)

1294

1282

1273

1269

1264

1258

1258

1252

1249

1247

Motor power(kW)

18.5

22

30

30

30

37

37

37

45

45

8

Flow(m³/hr)

1470

1456

1446

1442

1436

1429

1428

1423

1418

1416

Motor power(kW)

18.5

22

30

30

37

37

45

45

45

55

NO.

Rotating speed sequence

Working pressure(bar)

0.3

0.4

0.5

0.6

0.7

0.8

0.9

1.0

1.1

1.2

GF200

1

Flow(m³/hr)

1319

1316

1313

1312

1310

1309

1308

1307

1305

1304

Motor power(kW)

18.5

22

30

30

30

37

37

45

45

45

2

Flow(m³/hr)

1496

1493

1489

1488

1486

1485

1483

1482

1481

1480

Motor power(kW)

18.5

22

30

30

37

37

45

45

45

55

3

Flow(m³/hr)

1745

1741

1737

1736

1734

1732

1730

1729

1727

1726

Motor power(kW)

22

30

30

37

37

45

45

55

55

55

4

Flow(m³/hr)

1983

1978

1974

1973

1970

1968

1966

1965

1963

1961

Motor power(kW)

m

30

37

45

45

55

55

55

75

75

5

Flow(m³/hr)

2226

2220

2215

2214

2211

2208

2207

2205

2203

2201

Motor power(kW)

30

37

45

45

55

55

55

75

75

75

6

Flow(m³/hr)

2518

2511

2506

2504

2501

2498

2496

2494

2491

2490

Motor power(kW)

30

37

45

55

55

75

75

75

75

90

7

Flow(m³/hr)

2815

2807

2801

2800

2796

2793

2790

2788

2785

2783

Motor power(kW)

37

45

55

55

75

75

75

90

90

90

8

Flow(m³/hr)

3025

3018

3011

3009

3005

3002

2999

2997

2994

2992

Motor power(kW)

37

45

55

75

75

75

75

90

90

90

NO.

Rotating speed sequence

Working pressure(bar)

0.3

0.4

0.5

0.6

0.7

0.8

0.9

1.0

1.1

1.2

GF250

1

Flow(m³/hr)

2691

2687

2687

2682

2680

2677

2676

2674

2672

2670

Motor power(kW)

37

45

55

75

75

75

75

90

90

90

2

Flow(m³/hr)

3053

3237

3237

3231

3228

3225

3223

3221

3219

3217

Motor power(kW)

45

55

75

75

75

75

90

90

90

110

3

Flow(m³/hr)

3561

3556

3556

3549

3546

3543

3541

3538

3536

3534

Motor power(kW)

55

75

75

75

90

90

110

110

110

110

4

Flow(m³/hr)

4046

4040

4040

4033

4029

4026

4024

4021

4019

4015

Motor power(kW)

55

75

75

90

90

110

110

110

132

132

5

Flow(m³/hr)

4541

4534

4534

4526

4522

4518

4516

4512

4510

4506

Motor power(kW)

75

75

90

90

110

110

132

132

132

160

6

Flow(m³/hr)

5136

5129

5129

5119

5115

5111

5107

5104

5101

5097

Motor power(kW)

75

90

110

110

110

132

132

160

160

160

7

Flow(m³/hr)

5742

5734

5734

5723

5718

5714

5710

5706

5703

5698

Motor power(kW)

75

90

110

132

132

132

160

160

160

185

8

Flow(m³/hr)

6172

6163

6163

6151

6146

6141

6138

6133

6130

6125

Motor power(kW)

90

110

110

132

132

160

160

185

185

185