Features of Crown Block:
1. Designed and manufactured in accordance with API Spec 4F & 8A and being authorized to use the official API monogram. In conformity with the requirements of industry standard SY/T5527.
2. Sheave grooves are quenching-treated, anti-abrasive with long service life.
3. Equipped with drilling line ward device, preventing drilling line from bouncing or falling off.
4. Equipped with bumping wood and protective net.
5. Equipped with gin pole for sheave block servicing.
6. Equipped with sand sheave and auxiliary sheave block.
7. Sheaves of crown block and mated traveling block are fully interchangeable.
|Max. hook load kN(1bs)||1350(300000)||1700(37400)||2250(500000)||3150(700000)||4500(1000000)|
|Dia. of drilling line, mm(in)||26(1)||29(1 1/8)||32 (1 1/4)||35 (1 3/8)||38 (1 1/2)|
|OD of sheave, mm(in)||1005 (40)||1005 (40)||1120 (44)||1270 (50)||1524 (60)|
|Qty. of sheaves||5||6||6||7||7|
|Dimension(L × W× H), mm(in)||2320× 1436× 1781||2668× 2460× 1855||2668× 2709× 2469||3112× 2783× 2800||3407× 2722× 2856|
|Weight, kg(1bs)||2775 (6118)||4540 (9988)||5270 (11594)||7600 (16720)||9750 (21450)|
petroleum drilling & extracting equipment
PDC drill bit, roller bit
ZJ50DB, ZJ70DB, ZJ40DB, ZJ30DB
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