wire rope hoist

Electric wire rope hoists can be provided in any configuration available, whether it be single hook, twin hook or multiple hook models utilizing lug, floor, ceiling or trolley mounting, we can provide it for you.

Electric Wire Rope Hoist are suitable for medium and heavy duty operations. The hoists are designed in modular construction with each component easily accessible for maintenance. The Rope drum, Gear Box, Motor, Brake and Panel can be easily attended to. The frame is of sturdy design fabricated from steel plates and is welded / bolted type.

Disadvantages of wire rope -

Wear on areas in contact with hoist sheaves and drums.

Corrosion from lack of lubrication and exposure to heat or moisture (e.g., wire rope shows signs of pitting).

A fibre core rope will dry out and break at temperatures above 120°C (250°F).

Fatigue from repeated bending even under normal operating conditions.

There is the safe working load limit.

Kinks from improper installation of new rope, sudden release of a load or knots made to shorten a rope. A kink cannot be removed without creating a weak section.

safety precautions:

Inspect wire ropes -

Only trained personnel should carry out an inspection of wire ropes.
Inspect a wire rope when installing it.
Inspect wire ropes every working day.
Keep records of daily inspections.
Check for abrasions, corrosion, pitting, and lubrication inside rope. Insert a marlin spike beneath two strands and rotate to lift strands and open rope.

When should you eliminate the rope from its use -

Assess the condition of the rope at the section showing the most wear. Discard a wire rope if you find any of the following conditions:
In running ropes (wound on drums or passed over sheaves), 6 or more broken wires in one lay length; 3 or more broken wires in one strand in one lay.
In pendant standing ropes, 3 or more broken wires in one lay length.
Wear of 1/3 of the original diameter of individual outside wires.
Kinking, crushing, cutting or unstranding, bird caging or other physical damaged that has distorted the shape of the wire rope.
Heat damage (check for burn marks, discoloration of the metal).
Excessive stretch or sharp reduction in the rope diameter.
Knots or splices (except eye splices) in a wire rope.

Latest trends of wire rope hoist:

The Spacemaster® SX represents a revolutionary new generation of exceptionally reliable electric wire rope hoists, featuring advanced technology and cutting-edge performance.

An innovative design that includes a large drum diameter gives Spacemaster® SX hoists the lowest headrooms and best wheel loads in the industry while providing near true vertical lift with single reeved hoists, and both exceptional hook approaches and heights of lift.

Unique features include new low maintenance, sealed brakes, a two-speed hoist motor, and trolley inverter control. The standard hoist nameplate will carry a CSA c/us rating as well as a rating for electrical enclosures. Two-component epoxy paint is standard. Hoists are designed to meet and exceed previous duty (FEM 1Am, 2m, or 3m) ratings and provide the ultimate in easy load handling, safe operation and lasting, trouble-free performance.

EASE OF OPERATION:

Large-diameter hoist drum means easy positioning, closer approaches.The larger drum diameter provides near true vertical lift with a single reeved hoist . The result is exceptionally smooth movement and fast load positioning.

This design also means a shorter frame length, allowing closer end approaches. Hoist and trolley motors designed for space savings and productivity.Standard two-speed hoist motor designed specifically for hoisting applications, offers high starting torque and ensures precise and reliable load handling.

The trolley motor's standard inverter control offers two-speed multi-step or infinitely variable speed control for smooth acceleration and deceleration, minimal load swing, fast, efficient handling and accurate load placement.

SAFETY :

Standard safety features . An electromechanical load limit switch prevents the lifting of loads that are in excess of 110% of rated capacity. The 4-position hoist limit switch includes an innovative phase mismatch protection circuit that prevents the block from running up and damaging the hoist in the event of phase reversal.

Sealed brakes, hardened ground gears, thermal motor protection, exceptional rope life and ergonomic hook block design with sturdy safety latch contribute to the hoist's safe operation and increased reliability.

LESS MAINTENANCE:

Sealed brakes mean long-term value.Sealed dust-proof brakes on the trolley and hoist motors require little adjustment for over a million cycles and will last the life of the hoist under normal use. Trolley design reduces wear on components.

The trolley drive is totally enclosed, grease lubricated and is designed to be maintenance-free. Trolley wheel bearings are permanently lubricated. The automatic disc brake and inverter control help extend the life of the motor and other components, which means less maintenance, less downtime, lower repair costs — and reduced cost over the lifetime of your hoist equipment.

LONG LIFE :

Innovative gearbox provides dependable operation and extends equipment life.The innovative gear case design reduces stress on drum bearings, reducing the need for maintenance while extending component life.

It features hardened and ground internal reduction gears driving an external drum gear located on the inner surface of the rope drum. The gearbox's semi-fluid grease lubrication also helps to extend its working life. The gear case is designed to run cooler and more efficiently than those equipped with a mechanical load brake.

Larger hoist drum minimizes rope wear and enhances cooling.A drum/rope diameter ratio of approximately 40:1 minimizes rope flex, reducing wear and extending rope life. The drum's large diameter also contributes to a reduction in frame size and weight, reducing wear on hoist components and enabling the use of more cost-effective crane girders. The unique placement of the hoist motor inside the drum provides directed airflow through the drum for optimal motor cooling. This design also makes the motor and brake more easily accessible.