CD/MD wire rope electric hoist is a traditional Chinese product that is used on the I-beam rail girder overhead crane and portable gantry crane. This wire rope electric hoist technology was imported from Russia. The CD electric hoist typically has one mode lifting speed, and it is always 8 m/min.
When you buy or use the MD electric hoist, there will be two modes of lifting speed, and those are 0.8 m/min and 8 m/min. Because the MD wire rope electric hoist has two motors: one is responsible for travelling, and the other one is for lifting materials. Weihua’s wire rope electric hoist is here to provide you with a more affordable and high-quality usage experience.
Why should you choose Weihua’s wire rope electric hoist?
1.Weihua brand stands for high quality
This is the most important factor when you consider our Weihua brand electric wire rope hoist. You can see many cases where many global customers bought our CD/MD electric wire rope hoist. We have a huge brand reputation in the world crane market. Of course, we use the best steel materials to produce the electric hoist, so we receive a lot of excellent feedback from our new clients. Go to our website to check our feedback.
2.Online after-sales support and offline service centre
Weihua after-sales support has been arranging to many countries and regions like Southeast Asian countries. Of course, we have online 24-hour after-sales support to give you timely service. CD/MD electric hoists typically need maintenance and repair, so it is very essential for you to consider Weihua's after-sales service.
Key specifications
CD electric wire rope hoist
Lifting capacity: 0.5–16 tons
Lifting height: 6–30 m
Lifting speed: 8 m/min
Travel speed: 20 m/min
Duty class: A3
Power supply:3-phase AC 380V 50Hz
MD electric wire rope hoist
Lifting capacity: 0.5–16 tons
Lifting height: 6–30 m
Lifting speed: 8/0.8 m/min
Travel speed: 30 m/min
Duty class: A3
Power supply: 3-phase AC 380V 50Hz
Tips on how to choose and buy the right CD/MD electric wire rope hoist
1.Consider the raw materials you often lift, your workshop situation, like dimensions
This is very crucial for you to know your workshop's dimensions. That will determine the lifting height and the crane’s span. As for the lifting capacity, if your required capacity is exceeded by 5 tons, then it is better to take into account the wire rope electric hoist. And the CD/MD are typically used on the single girder gantry crane or overhead crane, like the Weihua LD single girder gantry crane.
2.Select the right speed mode
CD/MD have different speed modes. As we talked about, MD has two speed modes and CD has only one speed mode. So, if you need fast lifting effectiveness, then the CD electric wire rope hoist is right for you; but if you need not only lifting effectiveness, but also require precise positioning, then the MD is right for you.
3.Check whether there are any certificates
Of course, our CD/MD electric hoist has CE certificates, and we have the ability to export to the global market, including the European region. This is very critical for you to know about because these certificates will allow you to import the CD/MD electric wire rope hoist to your country or region. Also, certificates mean the product quality has a guarantee, and can make sure there are no problems with the hoist, and can provide the accidents at your workshops.
Frequently Asked Questions
1.What is the difference between CD₁ and MD₁ electric hoists?
The CD₁ model has a single normal lifting speed, suitable for general lifting applications. The MD₁ model has two lifting speeds—normal speed and low speed. The low speed allows for precise loading/unloading, sand box molding, machine tool maintenance, and other fine-operation tasks. Therefore, the MD₁ is more widely used than the CD₁
2.What safety protections does the CD₁/MD₁ electric hoist have?
The CD₁/MD₁ electric hoist is equipped with multiple safety protection features to ensure safe operation
Overload limiter – When the load reaches 90% of rated capacity, it sends a pre-alarm signal. When the load reaches 110%, it immediately cuts off the hoisting power and issues a warning alarm
Loss of voltage protection – After a power failure, the hoist cannot restart automatically when power is restored; the start button must be pressed again, preventing unexpected self-starting
Grounding protection – All metal structures and electrical equipment enclosures are reliably grounded. The grounding resistance of the electric hoist connection is ≤ 0.1Ω
Short circuit protection – The main circuit breaker automatically trips in the event of a short circuit
Hoisting limit protection – Uses a fire-cut limit switch that automatically cuts off the hoisting motor power when the hook reaches the upper or lower limit position
Rope guide – Prevents steel wire rope from tangling on the drum
These safety features ensure reliable and safe lifting operations in industrial environments.
