Introduction to the Characteristics and Operating Standards of Hand pulled Gourds

1、 Product Features

Hand pulled hoist (also known as chain hoist, reverse chain hoist, weighing less) is a light and small manual lifting machinery widely used in factories, mines, construction sites, docks and other scenarios, especially suitable for short distance lifting in environments without power supply. Its core features are as follows:

Compact structure and strong portability

The shell is made of high-quality alloy steel or explosion-proof materials (such as aluminum bronze and beryllium bronze), which are sturdy, wear-resistant, lightweight, and small in size, making it easy to carry and operate.

The chain is made of high-strength materials (such as 800Mpa lifting chains), and undergoes medium frequency quenching heat treatment to ensure low wear and corrosion resistance, ensuring long-term safe use.

Safe and reliable, efficient braking

Equipped with a ratchet friction plate one-way brake, it automatically brakes under load, and the pawl engages tightly with the ratchet to prevent heavy objects from slipping off.

The high-strength hook is designed with forging and has overload protection function to avoid the risk of sudden breakage.

Easy to operate and highly adaptable

By pulling the hand chain clockwise/counterclockwise, heavy objects can be lifted and lowered with low operating force and high mechanical efficiency.

Suitable for vertical lifting, horizontal traction, and multi angle diagonal pulling (strictly following specifications), the lifting capacity range is usually 0.5-20 tons, and some models can reach up to 50 tons.

Low maintenance cost and long lifespan

Modular design facilitates disassembly and maintenance, significantly extending the lifespan of key components such as gears and bearings after lubrication.

Compliant with international safety standards (such as European CE certification), durable and suitable for high-intensity working environments.

2、 Operating standards and safety requirements

To ensure the safe use of the chain hoist, the following operating rules must be strictly followed:

1. Pre use inspection

Equipment status: Confirm that the brake, chain, hook, pin and other components are intact, without cracks, deformations or looseness.

Lubrication condition: Check whether the transmission part and chain are well lubricated to avoid chain jamming or excessive wear.

Environmental assessment: Ensure that the suspension pivot is firm and reliable, there are no obstacles or dangerous items around, and operators wear safety protective equipment.

Load matching: Select the appropriate model of chain hoist based on the weight of the heavy object, and overloading is strictly prohibited (the lifting capacity must not exceed the rated value).

2. Operation process

Preparation for lifting:

Fix the upper hook on a stable pivot point, and hang the heavy object vertically with the lower hook to ensure a firm binding and stable center of gravity.

Adjust the lifting chain to a non twisted state, and the hook frame under the double row chain must not flip.

Lifting operation:

Enhancement: The operator stands in the same plane as the bracelet wheel and pulls the hand chain clockwise at a constant speed to avoid excessive force causing the chain to jump.

Descent: Pull the hand chain counterclockwise to separate the brake seat from the friction plate, and the heavy object descends smoothly.

Midway stop: If heavy objects need to be suspended for a long time, the hand zipper should be tied to the lifting chain to prevent self-locking failure.

3. Prohibited behaviors

Overloading and diagonal pulling: Overloading or horizontal diagonal pulling of heavy objects is strictly prohibited to prevent chain breakage or equipment overturning.

Multi person operation: It is forbidden for two or more people to pull the bracelet at the same time to avoid accidents caused by uneven force.

Throwing and impact: Do not throw or drop the chain hoist or hit the chain with hard objects to prevent damage to the parts.

Overnight with load: When hovering heavy objects for a long time, additional safety measures (such as tying chains) need to be taken.

4. Maintenance and upkeep

Daily cleaning: Wipe the equipment after use, apply rust proof grease, and store in a dry and ventilated place.

Regular maintenance:

Check the wear of the brake friction plate and chain, and replace them when the wear reaches 10% of the original diameter or 5% elongation.

Lubricate rotating components such as gears and bearings to prevent rusting and jamming.

Scrap standard: When cracks, severe deformation or inability to brake occur, immediately stop using and replace with new equipment.

3、 Typical application scenarios

Factory equipment installation: lifting heavy equipment such as machine tools and molds.

Construction site: Short distance transportation of steel bars and concrete components.

Dock and warehouse: loading and unloading goods or adjusting the stacking position of goods.

Emergency rescue: Quickly lift obstacles or rescue supplies in an environment without power supply.

The main equipment produced by Hebei Makita: stage electric hoist, electric chian hoist, wire rope electric hoist，Hand chain hoist, lever hoist, pneumatic hoist and other lifting equipment