Model ZT-R Kelly Rotating Cementing Head 
Model ZT-R Kelly Rotating Cementing Head
Features /
1.Heavy duty bearing allows safe rotation during pipe reciprocation and cementation.
2.Reliable sealing capacity. Able to hold high pressure even in rotating status.
3.The cementing head may be lifted when the drill string is rotated by rotary table. It can rotate freely even under tension.
Technical Parameters /

Size

Working pressure

in

mm

MPa

2-7/8

73

50

3-1/2

89

50

4

102

50

4-1/2

114

50

5

127

50

5-1/2

140

50