EQ Hoist

Rayvanbo's EQ electric chain hoists are designed for medium to heavy-duty industrial and workstation applications. These hoists include a unique no-load high speed function that automatically increase hoist speed up to 130% when the load is less than 30% of working load limit. All models come with a standard "under-the-cover" variable frequency drive - regardless of voltage. This device works by varying the power to the motor, which allows you to adjust both the high and low speeds. It also provides a soft-start/soft-stop operation to reduce shock loads, swing, and bounce - resulting in more precise load control and longevity of the hoist.

Simple Construction

This low-maintenance product was built without a transformer, magnetic contactor, brake contactor, or brake coil.

Unique Load Sheave

With an increased number of pockets, there is a reduction in chain vibration, which increases the life of the chain.

No-Load High-Speed

The hoist will speed up 1.3 times faster when working with less than 30 percent of a full load.

Limit Switches

Upper and lower-limit switches are micro and inside the body of the hoist, which gives them less chance of being damaged.

Chain Guide

With its heavy cast iron construction, the chain guide provides quiet and smooth guiding of the chain through the hoist.

Standard Count Hour Meter

The Standard Count Hour Meter records and displays the number of lifting/lowering starts and hoist on time, which helps you stay up to date on preventative maintenance.

Green Construction

Rayvanbo is committed to making effective products for end-users, but also, does so while reducing the chain hoists' carbon footprints. Rayvanbo uses a smarter-build approach that does not include harmful materials, making the EQ/SEQ Electric Chain Hoists RoHS (Restriction of Hazardous Substances Directive) compliant.

Perpendicular Orientation

PT (Push Trolley), GT (Gear Trolley) and MRQ motorized trolley mount hoists are configured as perpendicular to the beam.

Friction Clutch

The friction clutch is standard on EQ/SEQ models and provides consistent performance over a wide temperature range.

Wear-Resistant Load Chain

Rayvanbo utilizes Grade 80 super-strength, nickel-plated load chain, which is certified to DIN (Deutsches Institut fur Normung or German Institute for Standardization) standards, and utilizes unique technology to greatly increase resistance to fatigue and wear.

High Air Flow

The cooler motor and brake are because of an engineered motor fin, fan blade, and fan cover design.

Pull-Rotor Motor Brake

Extremely durable and reliable, the advanced design contains no brake coil to fail like conventional disc brakes. The product comes with a five-year hoist brake warranty.

Increased Productivity

An electric chain hoist can make lifting and moving weights from one place to another simple, thus is widely used for heavy-duty, medium-duty as well as light-duty applications. This helps workers spend less time adjusting the loads as no manual effort is needed when compared to the manual hoist reducing fatigue and helping boost productivity. Thus, an electric chain hoist is what you need if you want to save time and improve overall productivity. There are even various options available as per the work requirements.

High Load Capacity

As the name goes a motor is attached to an electric chain hoist. Hence, when compared to manual hoists, a single person operating a chain pulley block can only lift up to max. 5 tons whereas, in the case of an electric chain hoist, they can go up to 30 tons, powering the lifting capability of the machine. Also, an electric chain hoist helps with cross-travel motion, lifting a wide range of loads even more comfortably.

Cost Effective

The cost of skilled labour, particularly for lifting machinery, is rising over time. Because of the minimal labour requirements, an electric chain hoist can save significantly on labour costs; it is also a one-time investment.

Engine Hoists

Engine hoists, or engine cranes, are used to assist the workers in the installation and maintenance of engines of automobiles. They are designed to lift the engine under the automobile hood. Their electric hoists are mounted on top of the rigid and portable structural frame. The structural frame has wheels installed at its base to easily maneuver the hoist over the automobile, as well as to transport it around the machine shop. Its portability makes it suitable for outdoor applications. The structural frame of some engine hoists is foldable, so it can save space when it is stored.

Overhead Cranes

In overhead cranes, there are two parallel end trucks mounted on runway beams . The runway beams are also responsible for supporting the entire overhead crane and the load. The end trucks travel along the rails of the runway beams together with the bridge and the electric hoist. The electric hoist travels across the length of the bridge. The bridge can either be a single girder or a double girder bridge. A single girder bridge crane has one trolley that moves across a single girder beam, while the double girder bridge crane has two trolleys that move the electric hoist synchronously across two girder beams.

Jib Cranes

A jib crane has a lifting fixture that primarily consists of two large beams constructed to form a cantilever. The mast, or pillar, is the vertical beam of the fixture that supports the reach. The reach, or boom, is the horizontal beam of the fixture wherein the electric hoist travels to position the load.

Gantry Cranes

Gantry cranes are versatile lifting devices; their lifting fixtures consist of a horizontal overhead bridge supported by legs. The electric hoist travels along the length of the overhead bridge. Mobility is made possible by installing wheels on the base of the legs or making them run along a track. Unlike bridge cranes and jib cranes, gantry cranes do not require support from the building's structure. They can be used outdoors. They can be installed under bridge cranes to carry some of their load.

Monorail Cranes

Monorail cranes are a type of overhead crane used in production facilities and machine shops for repetitive lifting and positioning tasks. They are used to move loads to a restricted area. The electric hoist trolley runs on the outer flange of a single I-beam, which is already built on the ceiling structure of the building.

Clean and Lubricate the Chain

Debris and rust are the most common sources of chain wear. If there's too much buildup of grit or rust, the chain can become difficult to move or stiff. Depending on what your chain hoist is used for, you should dismantle it completely for cleaning and oiling once or twice a year.

Be Aware of Common Issues with Chain Hoists

All three kinds of chain hoists - hand chains, lever ratchets, and differentials, use some combination of a hook and a chain to lift or move heavy objects. Wear and tear can affect the ability for the chain to rotate, which is the source of many problems. Luckily, you can help extend your chain's lifespan with regular maintenance.

Perform Regular Inspections

OSHA requires that certain inspections and tests be carried out on chain hoists on a regular basis. Every day, the crane or hoist operator should perform a visual inspection of their equipment to ensure it is working properly. Every month, a detailed inspection should be conducted, documenting damage to the equipment, as well as existing wear and tear.

1. Electric chain hoists should not be used above their lifting capacity, specified in the nameplate. The rated load, or the lifting capacity, specified on the nameplate, should never be exceeded. In addition, the rating of the lifting motor (short-time and intermittent rating) should be taken into account.
2. Operators and other personnel should not ride on a lifted load. This could lead to severe physical injury to personnel and damage to the equipment.
3. Loads should not be raised in an inclined position because this may cause the load to swing. Before hoisting a load, electric chain hoists should be situated precisely above it.
4. After the load has been hoisted, the operator should not handle the chain hoist and move backwards. Operators should always position themselves behind the load and move forward while operating the chain hoist.
5. Operators should not use the electric chain hoist when underneath the load. At any time, no person should be present in the area beneath the hoisted load.
6. Frequent use of the upper and lower limit switch can cause partial abrasion or damage the limit switches. Upper and lower limit switches are provided only as an emergency option, and should not be used regularly.
7. Operators should not perform excessive inching operations. Habitual inching of the electric chain hoist may cause the service life of electric chain hoists to be drastically reduced.
8. If a load necessitates the use of two electric chain hoists, ensure that both hoists meet the W.L.L. (Working Load Limit) requirements.

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