QZ Overhead Crane with Grab Cap.2-20T, Crane with Grab, Overhead Crane

Loading Port:China main port

Payment Terms:TT OR LC

Min Order Qty:1 set

Supply Capability:10 set/month

Product Description:

Profile

QZ overhead crane with grab is widely used to handle and transport the goods in port, factory, workshop and power plant.The working system of the QZ overhead crane with grab is heavy. The working classification the QZ overhead crane with grab is A6. All operations are handled in cab. Direction of door on platform toward driver’s cab: side, top and end. Rated lifting capacity contains the weight of the grab .

Open direction of grab is paralleling with the beam and pluming with the beam. The fetching device is a double-cylinder 4-rope grab bucket that is simple, reliable and can open at any height. The grab bucket is only used to take bulk material and make clear statement in the order if you want grab bucket that is used to take underwater or special material.The crane can be used for both indoor and outdoor operations and water-proof cloth is needed in outdoor operation.

Main structure feature

The overall QZ overhead crane with grab is made up of crane span structure, crane traveling mechanism, trolley mechanism, grab bucket,cab, electrical equipment and etc. The structural style of the QZ overhead crane with grab mainly adopts double girder and double rail winch with single trolley.

Technical specification of the main structure

Bridge span structure

The structure style of the trolley adopts double girder. The main stress part contains the main girder and end girder. And the assisted part includes trolley track, walking board, handrail, ladder and other auxiliary metal structures. The main girder adopts the right rail box girder structure, which has enough strength,rigidity and whole stability. The end girder adopts box girder structure where the end girder and main girder is connected with rigid coupling.

Lifting mechanism

On the trolley of the QZ overhead crane with grab, it is equipped with two sets of winch mechanisms. Each winch mechanism adopts twin drum, which is set symmetrically. Separately, each winch mechanism can handle the holding rope and open-close rope of the grab bucket with convenient operation, stable work and high productivity.

QZ Overhead Crane with Grab Cap.2-20T, Crane with Grab, Overhead Crane

QZ Overhead Crane with Grab Cap.2-20T, Crane with Grab, Overhead Crane

Sketch

QZ Overhead Crane with Grab Cap.2-20T, Crane with Grab, Overhead Crane

Technical specification

Lifting capacity

t

5

10

Span

m

10.5

13.5

16.5

19.5

22.5

25.5

28.5

31.5

10.5

13.5

16.5

19.5

22.5

25.5

28.5

31.5

Max.lifting height

m

20

18

Working class

A6

A6

Speed

Lifting

m/

min

39.2

39.3

Trolley traveling

44.6

45.9

Crane traveling

93.6

113.6

112.5

101

W

4000

4050

5000

4000

4100

5000

S1

1635

2015

S2

1635

1850

b

230

230

260

H

1876

1926

2078

2168

H1

765

850

815

940

H2

128

228

328

478

628

728

878

1028

180

230

380

390

540

690

840

940

H3

2548

2648

2748

2898

3048

3148

3298

3448

2600

2650

2800

2810

2960

3110

3260

3360

h

850

700

Max.wheel load

 

KN

75

80

87

95

102

113

122

130

113

121

131

142

152

162

172

180

Grab bucket

Model

U

113

109

110

105

106

101

102

127

123

124

119

120

115

116

Type

Light

Medium

Heavy

Extra-heavy

Light

Medium

Heavy

Extra-heavy

Volume

2.5

1.5

1

0.75

5

3

2

1.5

Density of material

t/m³

≤1

>1~1.7

>1.7~2.5

>2.5~3.3

≤1

>1~1.7

>1.7~2.5

>2.5~3.3

Dead wight

kg

2633

2549

2615

2506

2568

2479

2546

4800

4803

4866

4850

4913

4730

4793

Main dimension

D

3120

2740

2740

2530

2530

2340

2340

3900

3430

3430

3220

3220

2920

2920

Ba

2200

1950

1950

1800

1800

1650

1650

2700

2400

2400

2200

2200

1960

1960

Bb

1500

1354

1354

1238

1238

1160

1160

2060

1754

1754

1528

1528

1416

1416

Recommended steel rail

43kg/m  or   QU70

Power source

Three-phase AC       50Hz        380V

Technical specification

Lifting capacity

t

16

20

Span

m

16.5

19.5

22.5

25.5

28.5

31.5

16.5

19.5

22.5

25.5

28.5

31.5

Max.lifting height

m

28

26

Working class

A6

A6

Speed

Lifting

m/

min

41.8

45.7

Trolley traveling

43.2

43.2

Crane traveling

98

87.3

87.3

W

4800

5000

4800

5000

S1

2305

2635

S2

2060

2485

b

260

300

300

H

2385

2535

2739

H1

940

1090

1090

H2

394

544

544

694

794

894

246

390

546

696

796

896

H3

2814

2964

2964

3114

3214

3314

2666

2816

2966

3116

3216

3316

h

660

482

Max.wheel load

KN

206

218

233

247

257

269

229

243

254

270

279

293

Grab bucket

Model

U

141

137

138

133

134

129

130

155

151

152

147

148

143

144

Type

Light

Medium

Heavy

Extra-heavy

Light

Medium

Heavy

Extra-heavy

Volume

8

4.8

3.2

2.5

10

6

4

3

Density of material

t/m³

≤1

>1~1.7

>1.7~2.5

>2.5~3.3

≤1

>1~1.7

>1.7~2.5

>2.5~3.3

Dead wight

kg

7840

7993

8143

8008

8159

8155

8305

9812

10098

10287

9976

10123

9780

10206

Main dimension

D

4380

4050

4050

3750

3750

3430

3430

5000

4500

4500

4000

4000

3800

3800

Ba

3200

2820

2820

2600

2600

2350

2350

3500

3200

3200

2900

2900

2400

2400

Bb

2350

2078

2078

1792

1792

1628

1628

2478

2288

2288

1892

1892

1892

1892

Recommended steel rail

QU70  or  □ 90×90

Power source

Three-phase AC       50Hz        380V

Traveling mechanism of the trolley

Supported by four wheel of the trolley, the traveling mechanism of trolley of the QZ overhead crane with grab adopts a set of independent driven system to complete centralized drive on the trolley. The ratio of the drive wheel is 1:2. The transmission pattern of the trolley is: by means of gear coupling, one motor can drive one vertical type reducer. The two low speed shafts and two wheel shafts are connected with coupling and transmission shaft. The ratio of the drive wheel is 1:2.

Crane traveling mechanism

Supported by four wheel of the crane, the traveling mechanism of crane of the QZ overhead crane with grab adopts a set of independent driven system to complete centralized drive on the crane. The ratio of the drive wheel is 1:2. The transmission pattern of the crane is: one motor drives one reducer by means of coupling. And the the low speed shaft of the reducer and wheel shaft is connected with coupling. When the crane is started, the driving wheel will be not-slip. When the crane is braked, it is stable and smooth.

Protection and indicator

The QZ overhead crane with grab is set with emergency switch on the power off. Under the condition about the emergency, it can cut off the total power source of the crane.

The electric motor is equipped with complete protection devices. It can protect the QZ overhead crane with grab when it is in over current and short circuit, efficiently.

All of the door of the handrail is equipped with safety electric interlock.

Overload limiting device:

The QZ overhead crane with grab is equipped with overload limiting device. When the load reaches 90% of the rated load, the display instrument will send a alarm automatically. When the load reaches the 105% of the rated load, the QZ overhead crane with grab will cut off the total power source of lifting mechanism automatically.

The protective device of upper limiting position.the lifting mechanism of the hook is set with inhibiting device. When the hook has been lifted at the extreme height it will cut off the power source of the lifting mechanism.

Stroke limiter: on both sides of the crane and trolley are set with stroke limiter. When the crane and the trolley arrive at the extreme position, it will cut off the power source automatically. Also, it can travel in a reverse direction.

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