Shopping for a cheap winch should start by deciding what you will use the winch for. These devices come in a wide variety of sizes and functions, and a cheap winch designed for use on an off-road vehicle will be very different than one used in an industrial setting. Start by figuring out how you intend to use the device, and how much weight you are likely to haul with it; all winches have a weight capacity that will help you determine which one will be strong enough for your needs.
You will generally have two options when buying a cheap winch: you can purchase a used device or a new one. New devices tend to be more expensive, unless you buy an off-brand winch. This is acceptable for some purposes, but remember that the cost is often driven down at the sacrifice of quality. Avoid winches that feature many plastic parts that can break or otherwise fail easily, and make sure the device you choose follows industry standards that will allow you to purchase replacement parts if necessary. Be sure to look into any warranties or return policies associated with the new device to ensure you are protected if the winch malfunctions.
A used cheap winch is a great way to go if you are willing to take a bit of a risk on the condition of the unit. It may help to allot some of your purchase budget to potential repairs needed once you own the unit. Even a thorough inspection and test trial won't be able to reveal some issues with the device, so you will need to be prepared. When you inspect the used cheap winch, be sure to look for obvious signs of wear and damage, such as frayed cables, excessive rust, unusual and loud noises coming from the motor, and cracks in the motor housing or mounts.
Compatibility issues may arise when purchasing a used winch as well. If, for example, you are buying a cheap winch for your off-road vehicle, you will need to ensure the unit can be mounted on the frame of your vehicle for proper use. You will also need to take note of the weight capacity of the unit to ensure it is powerful enough to suit your needs. A winch that is not powerful enough can fail during operation, leading to potential damage or injury.