Crown Block

  • The retaining bar can prevent drill line from jumping out of and jumping off sheave grooves.
  • Sheave grooves are medium-frequency induction hardened, prolonging the sheave service life.
  • Sheave bearings are lubricated individually with the grease cup at the shaft end.
  • Sheaves and bearings of the crown block may be interchanged with those of the traveling block.
  • ‚ÄčThe crown clocks conform to API Spec 8A /4F.

Product Specifications For Crown Block

Model

Unit

TC-135

TC-170

TC-225

TC-315

TC-450

TC-585

Max. Hook Load

kN

1,350

1,700

2,250

3,150

4,500

5,850

lbs

300,000

370,000

500,000

700,000

1,000,000

1,300,000

Wire line O.D.

mm

29

29

32

35

38

42

inch

1 1/8

1 1/8

1 1/4

1 1/8

1 1/2

1 5/8

Sheave O.D.

mm

1,016

1,016

1,120

1,270

1524

1,524

inch

40   

40   

44   

50   

60   

60   

Sheave No.

No.

5

6

6

7

6

8

Overall Dimensions

L/ mm

2,320

2,668

2,668

3,192

3410

3,625

inch

91 21/62

105  3/76

105  3/76

125  2/3

134  1/4

142 43/60

W/mm

2,076

2,460

2,710

2,783

2753

2,832

inch

81 52/71

96 17/20

106  9/13

109 55/97

108 22/57

111  1/2

H/mm

3

1,856

2,469

2,350

2420

2,580

inch

70 1/2

70 1/2

70 1/2

70 1/2

70 1/2

70 1/2

Approx. Weight

Kg

2,670

4,540

6,500

8,500

11100

12,100

lbs

5,933

10,089

14,444

18,889

24,667

26,889