crown block

• Conforms to the requirements of industry standard SY/T5527.
• The sheave grooves are quenching treated, anti-abrasion and long service life.
• Equipped with wire line ward device, prevents the wire line from bouncing or falling off.
• Equipped with bumping wood and protective net.
• Equipped with gin pole for block servicing.
• Equipped with sand block and assistant block.
• The sheaves of crown block and mated traveling block are fully interchangeable.