Explosion-proof hand chain block can be used alone,and also can be used with electric block ,chain or electric trolley assembly together ,hanging on the roof of buildings or the crane beam. Also with the monorail trolley,realizing the walking around when lifting a heavy weight function. The installation and disassembly of explos ion-proof hand chain block is very convenient,safe and fast. Explos ion-proof hand chain block with is produced with aluminum bronze. Beryllium bronze as a blank,By force of friction parts including forming hand chain block up heavy wheel,chain wheel, w all panels ,hook ,gear shaft is made of aluminum bronze, beryllium bronze alloy mater ials. The product is safe and reliable. The design is advanced. When ifting，the copper and iron do not spark. There fore,there is no explosion and other adverse reactions.