The crown block consists of crown basement, fast‐line sheave, dead‐line sheave, main sheave, sand‐line sheave, drilling line protector and sheaves for hydraulic and air winch, bumper wood for the Crown‐O‐Matic and guardrail

                                                             

                                                  HOOK                                                    TRAVELLING BLOCK

TOP DRIVE DRILLING DEVICE

                           

In the name of the drilling depth 2000m（41/2″Drill pipe)
Maximum load : 1350 KN  
The main shaft hole size : φ64mm（φ51mm） 
Circulating pressure rating : 35MPa（5000psi）
System weight 5t(The main body, Excluding single‐rail and migration bracket) 
Operating height : 5.2m(Mention annulus to the HAND CARD on the flat) 
The power supply voltage : 24 VDC；380VAC 
Diesel Power : 294kW(400HP) 
Ambient temperature : ‐30℃～42℃
Elevation : ≤3000m

    

WORKOVER RIGS

           

Compared with a normal work over rig, the free‐standing workover rig is much more stable as its mast structure center coincides with the loading point in the same direction. It is easy to install the mast without needing to adjust the mast tilting angle or to fix the guylines after rigging up. With a much bigger operation space than the normal workover rig, it is easy to operate and control.

Compared with a normal work over rig, the free‐standing workover rig has the following differences:

(1) With an 8x8 all‐wheel‐drive chassis, it has a stronger moving capacity.
(2) With an erect mast, it is easy to install, stable and reliable. 
(3) The operation platform is integrated at the rear section of the carrier, which can be moved easily.