Hand chain hoists and lever hoists are manual hoists. What are the definitions of these two types of manual hoists? What is the difference?
The chain hoist is a lifting tool with a welded chain as a flexible carrier. It can be operated separately or combined with a manual monorail to form a lifting trolley for manual beam crane or overhead monorail transportation system. The commonly used chain hoists are HS type and HSZ type (heavy grade), and the rated lifting capacity is 0.5-20t for lifting molten metal or dangerous articles such as toxic and flammable, and installing precision equipment or electric hoist for explosion-proof. The running speed can be divided into two speeds, and the ratio of its normal speed to slow speed is generally (1:4)~(1:3).
The lever hoist is a hoist that is driven by a manpower to pull the wire rope or chain to move the pick-up device. It is widely used in shipyard hull assembly welding and street tensioning, agriculture, forestry and transportation departments of high-voltage transmission lines in the power sector. The items are hoisted, bundled and towed, as well as factory, construction, post and telecommunications departments and equipment installation, calibration and several pieces of traction. The lever hoist is divided into a wire rope hoist and a chain hoist according to its bearing parts.