Model

SL90

SL135

SL225

SL450

SL585

Max. static load rating KN

900

1350

2250

4500

5850

Max. speed r/min

300

300

300

300

300

Max. working pressure Mpa(psi)

25(3570)

35(5000)

35(5000)

35(5000)

35(5000)

Hook clearance over gooseneck mm(in)

435(17 1/8)

495(19 1/2)

540(21 5/8)

549(21 5/8)

584(23)

Central pipe over groovesneck mm(in)

64(2 1/2)

64(2 1/2)

75(3)

75(3)

75(3)

Coupling thread

To  stem

4 1/2”

4 1/2”

6 5/8”

7 5/8”

7 5/8”

To Kelly

6 5/8”

6 5/8”

6 5/8”

6 5/8”

6 5/8”