Competitive Price Heavy Duty Lever 3 Ton Chain Block Hoist

Keyword:lever hoist   Time:2019-6-21 20:50:20

 The RAMHOIST lever hoist is a manually operated lever hoist with an enclosed  friction disk brake for resistance to wear; an alloy steel grade 100 or 80 load chain for strength and to minimize weight; and a drop forged mount hook and load hook that swivel 360 degrees to facilitate handling of load, and have hook throat deformation markers to facilitate inspection.
 This hoist has a free wheel chain that, when it is in the neutral position, helps facilitate the reduction of chain slack by the operator. Each RAMHOIST lever hoist has an individual serial number to facilitate tracking and  identification, and a storage bag for travel and storage. This hoist has been load tested by the manufacturer to 150% of its rated capacity, and has been produced to comply with china top standards.

 Hoists are devices that use relatively small amounts of force to lift, lower, and pull heavy loads. Manual hoists transfer a small, hand-exerted force either across a series of gears to multiply the force into one large enough to lift the designated load, or over a pulley, drum, or sheave to leverage the force into one strong enough to lift the load.
 This makes it possible for an operator to manage heavy loads. The manual force is usually applied using a hand chain, lever, or lever ratchet, lifting the load  by a hook attached to a chain, rope, or wire. Hand chain and lever hoists generally use mechanical disk brakes called Weston-style brakes that hold the load in place while the operator's hands are released to make the next pull, secure the load once it has been lifted, and control the descent of the load as it is lowered.

Lever hoists9-5.jpg

 Ratchet puller hoists generally use ratchets instead of mechanical brakes to secure and control the load. Manual hoists are commonly attached to or suspended from structures by hook or trolley mounts, and are used in the transportation, construction, manufacturing, mining, and material handling industries, among others.
 Capacity is the maximum rated load a hoist can handle. While manufacturers may indicate they have tested a hoist beyond its limits, operators should never attempt to lift a load heavier than the maximum rated load. Pull force describes the amount of force that needs to be applied to lift a load. If a 1/2 ton manual hoist specifies a pull force of 40 lbs., for example, the operator needs to be able to pull a 40 lb.