CD1/MD1 Wire Rope Electric Hoists: Specifications, Prices, and Selection Guide for Various Tonnage Models
📌 Key Points The CD1/MD1 wire rope electric hoist is the most widely used model of wire rope electric hoist in China. It is driven by a conical-rotor brake motor and features a three-stage helical gear reduction transmission. The CD1 model features a single-speed hoisting rate of 8 m/min, while the MD1 model offers a dual-speed hoisting rate of 8/0.8 m/min (7/0.7 m/min for capacities of 10 t and above). Lifting capacities range from 1 to 20 t, with lifting heights ranging from 6 to 30 m. Price range: CD1—1 t approx. 3,000–6,000 yuan; 5 t approx. 8,000–15,000 yuan; 10 t approx. 15,000–30,000 yuan; 16 t approx. 25,000–50,000 yuan; MD1 models of the same tonnage are 20–30% more expensive than CD1 models.
The CD1 and MD1 models of wire rope electric hoists are the most widely used and most prevalent types in China’s lifting industry, finding extensive application in various lifting and handling scenarios such as factory workshops, warehouse yards, docks and shipyards, and power plant maintenance. This article comprehensively outlines the product information for CD1/MD1 wire rope electric hoists from five perspectives—model specifications, price references, structural features, applicable scenarios, and selection recommendations—to help users quickly understand this product line and make informed selection decisions. Krude Heavy Industry manufactures the full range of CD1/MD1 electric hoists and can provide customized lifting solutions for models ranging from 1 metric ton to 20 metric tons.
1. CD1/MD1 Model Specifications Summary Table
A comparison of the key specifications for the CD1 single-speed and MD1 dual-speed wire rope electric hoists is as follows. The CD1 has a lifting capacity range of 0.5–20 t (standard: 1–20 t), while the MD1 has a standard capacity of 1–20 t; lifting heights of 6–30 m are available for all load capacities. The CD1 has a hoisting speed of 8 m/min (7 m/min for capacities above 10 t), while the MD1 has a dual-speed hoisting rate of 8/0.8 m/min (7/0.7 m/min for capacities above 10 t); both models have a travel speed of 20 m/min.CD1-0.5t, wire rope diameter 5.1 mm, motor 0.8 kW, net weight 120 kg、CD1-1t steel wire rope 7.4 mm / 1.5 kW motor / 155 kg net weight、CD1-2t steel wire rope, 8.7 mm / 3.0 kW motor / 235 kg net weight、CD1-3t steel wire rope 11.0 mm / 4.5 kW motor / 310 kg net weight、CD1-5t steel wire rope 13.0 mm / 7.5 kW motor / 525 kg net weight、CD1-10t steel wire rope 15.0 mm / 13 kW motor / 1,010 kg net weight、CD1-16t steel wire rope, 17.5 mm / 18.5 kW motor / 780 kg net weight。
The MD1 model features a two-speed motor (with high and low power settings) for the same tonnage, and its curb weight is slightly higher than that of the CD1:MD1-1t Motor 1.5/0.2 kW / Weight 185 kg、MD1-2t Motor 3.0/0.4 kW / Weight 265 kg、MD1-3t Motor 4.5/0.4 kW / Weight 350 kg、MD1-5t Motor 7.5/0.8 kW / Weight 580 kg、MD1-10t Motor 13/1.5 kW / Weight 1,080 kg。
2. CD1 and MD1 Price Reference
The price of an electric hoist is influenced by factors such as lifting capacity, lifting height, whether a remote control is included, whether a special voltage is required (e.g., 380V, 220V, 440V, or 660V), whether it is explosion-proof, and whether it is a dual-speed model. The following are the reference price ranges for a single unit of Krude Heavy Industry’s CD1/MD1 wire rope electric hoists (excluding the travel trolley):CD1-1t: approximately 3,000–6,000 yuan、CD1-2t: approximately 4,000–8,000 yuan、CD1-3t: approximately 5,000–10,000 yuan、CD1-5t: approximately 8,000–15,000 yuan、CD1-10t: approximately 15,000–30,000 yuan、CD1-16t: approximately 25,000–50,000 yuan、CD1-20t: approximately 35,000–70,000 yuan. Because the MD1 model is equipped with a two-speed motor and an electrical system, its price is 20–30% higher than that of the CD1 model of the same tonnage. The price for a complete set including an electric trolley travel mechanism increases by approximately 15–25% based on the above figures. The price increases by approximately 500–2,000 yuan when a remote control (such as the F21 series) is included.
According to the “Catalog of Special Equipment” (Announcement No. 57 of 2020) issued by the State Administration for Market Regulation, CD1/MD1 electric hoists are not classified as special equipment when sold or used separately and therefore do not require inspection. However, once an electric hoist is mounted on a bridge crane or gantry crane with a lifting capacity of 3 metric tons or more, the entire crane must be managed as special equipment; it must undergo installation supervision inspection and obtain a Certificate of Use Registration. Upon delivery of the equipment, Krude Heavy Industry provides a complete factory inspection report and installation documentation to assist users in completing the inspection application.
3. Structural Differences Between the CD1 Single-Speed and MD1 Dual-Speed Models
The CD1 type uses a single-speed conical-rotor braked induction motor, which has only one rated power and one output speed. When the hoisting motor starts, the conical rotor moves axially under the action of electromagnetic force, compressing the spring to generate a braking torque—this is the principle of conical rotor braking. The advantages include an extremely simple structure (no separate brake), low cost, and easy maintenance. The disadvantage is that hoisting is limited to a single speed, making precise positioning difficult.
The MD1 model adds a slow-speed winding to the CD1 design, resulting in a dual-speed conical-rotor braked induction motor. The high-to-low speed ratio is fixed at 8:0.8 (7:0.7 for loads over 10 metric tons), and the lifting speed in low-speed mode is approximately one-tenth that of high-speed mode. Operators can use the high-speed setting for rapid lifting under no-load or light-load conditions, then switch to the low-speed setting for precise positioning as they approach the target position, significantly enhancing the safety and operational accuracy of installation work. Compared to the CD1, the MD1 has slightly larger dimensions and a slightly higher weight for the same tonnage (approximately 10–201 TP3T), and its electrical control system requires a two-speed contactor or a variable frequency drive.
4. Application Scenarios and Selection Recommendations
CD1 Single-Speed Model: Recommended Applications:Daily material handling in factory workshops, loading and unloading at warehouses and yards, loading and unloading on production lines, occasional lifting operations at docks, and maintenance of power plant equipment. Designed for general-purpose applications that do not require precise positioning, prioritizing cost-effectiveness and ease of maintenance. The CD1-0.5t–5t models are suitable for light-duty applications, while the CD1-10t–20t models are suitable for standard lifting operations involving medium-tonnage loads. The CD1 series offers the most cost-effective choice among wire rope electric hoists.
MD1 Dual-Speed Model: Applications:Accurate positioning is required for mechanical equipment installation (with positioning accuracy within ±5 mm), mold replacement, precision assembly stations, steel structure hoisting and assembly, and inspection and maintenance operations. The MD1 is 20–30% more expensive than the CD1, but the savings in operation time and the reduced risk of collisions more than offset the price difference. If your budget allows or if high alignment accuracy is required, we recommend selecting the MD1 model directly.
Selection Recommendations:① Select the rated lifting capacity based on the maximum load weight (it is recommended to allow a margin of 15–20%). ② Determine the lifting height based on the factory building height and operational requirements (standard heights are 6 m, 9 m, and 12 m; special configurations can reach up to 30 m). ③ Confirm the compatible I-beam range based on the crane rail model (e.g., CD1-1t is compatible with I20a–56b, and CD1-5t is compatible with I25a–63c). ④ CD1/MD1 electric hoists are most commonly used in conjunction with MH-type single-girder gantry cranes or LD-type electric single-girder overhead cranes. ⑤ If operation on the main girder of a long-span overhead crane is required, a complete system with an electric trolley must be selected.
5. Comparison Table of Specifications for All CD1 and MD1 Models
| Model | Lifting Capacity (t) | Lifting Speed (m/min) | Motor Power (kW) | Wire Rope Diameter (mm) | Net Weight (kg) | Suggested Price (Yuan) |
|---|---|---|---|---|---|---|
| CD1-1t | 1.0 | 8 | 1.5 | 7.4 | 155 | 3,000~6,000 |
| CD1-2t | 2.0 | 8 | 3.0 | 8.7 | 235 | 4,000~8,000 |
| CD1-3t | 3.0 | 8 | 4.5 | 11.0 | 310 | 5,000~10,000 |
| CD1-5t | 5.0 | 8 | 7.5 | 13.0 | 525 | 8,000~15,000 |
| CD1-10t | 10.0 | 7 | 13.0 | 15.0 | 1010 | 15,000~30,000 |
| CD1-16t | 16.0 | 7 | 18.5 | 17.5 | 780 | 25,000~50,000 |
| MD1-1t | 1.0 | 8/0.8 | 1.5/0.2 | 7.4 | 185 | 4,000~7,000 |
| MD1-2t | 2.0 | 8/0.8 | 3.0/0.4 | 8.7 | 265 | 5,000~10,000 |
| MD1-3t | 3.0 | 8/0.8 | 4.5/0.4 | 11.0 | 350 | 6,000~12,000 |
| MD1-5t | 5.0 | 8/0.8 | 7.5/0.8 | 13.0 | 580 | 10,000~18,000 |
| MD1-10t | 10.0 | 7/0.7 | 13/1.5 | 15.0 | 1080 | 18,000~35,000 |
6. CD1/MD1 Data Card
1–20 metric tons Lifting Capacity Range The CD1/MD1 models cover the full range from 1 to 20 metric tons; the CD1 is available in a 0.5-metric-ton version. |
8 m/min Lifting Speed CD1 lifts at 8 m/min; MD1 features dual speeds of 8 and 0.8 for precise positioning |
3,000~ Starting Price The CD1-1t starts at approximately 3,000 yuan, with prices for the entire series increasing in increments based on tonnage. |
6–30 m Lifting Height Range Standard range: 6–30 m; can reach even greater heights under special conditions |
20~30% MD1 Premium Margin The MD1 dual-speed model is about 20–30% more expensive than the CD1 single-speed model. |
Conical Rotor Braking System Conical-rotor brake motor, simple in design and maintenance-free |
Frequently Asked Questions (FAQ)
Q: How much does a CD1 electric hoist cost?
A: The price of a CD1 electric hoist varies depending on its lifting capacity and configuration: the CD1-1t model costs approximately 3,000–6,000 yuan, the CD1-5t model costs approximately 8,000–15,000 yuan, the CD1-10t is approximately 15,000–30,000 yuan, the CD1-16t is approximately 25,000–50,000 yuan, and the CD1-20t is approximately 35,000–70,000 yuan. Prices increase by 15–25% when an electric trolley is included, and by 500–2,000 yuan when a remote control is included. The entire Krude Heavy Industry product line is customizable, and we offer free technical consultations and quotes.
Q: What is the difference between the CD1 and MD1 electric hoists?
Answer: The CD1 is a single-speed model with only one hoisting speed (8 m/min); the MD1 is a dual-speed model with hoisting speeds of 8/0.8 m/min (7/0.7 for loads over 10 t). The slow speed is approximately one-tenth of the fast speed, enabling precise positioning. The MD1 has a more complex motor and control system, is slightly heavier, and costs approximately 20–30% more than the CD1 for the same load capacity. Choose the MD1 for applications requiring high positioning accuracy; for general material handling, the CD1 is a more economical choice.
Q: What is the diameter of the wire rope on the CD1 electric hoist?
Answer: Depending on the tonnage: CD1-1t wire rope has a diameter of 7.4 mm, CD1-2t is 8.7 mm, CD1-3t is 11.0 mm, CD1-5t is 13.0 mm, CD1-10t is 15.0 mm, and CD1-16t is 17.5 mm. The wire ropes comply with the GB/T 8918-2006 standard and have a safety factor of ≥5. It is recommended to inspect the wire ropes quarterly for wear and broken wires, and to replace them immediately if they meet the criteria for scrapping.
Q: Does the CD1 electric hoist need to be submitted for inspection?
Answer: When sold or used on its own, the CD1 electric hoist is not classified as special equipment and does not require inspection. However, once installed on a bridge or gantry crane with a lifting capacity of 3 metric tons or more, the entire crane must be subject to special equipment regulation in accordance with TSG Q7016-2016: installation supervision inspection → periodic inspection every 2 years → annual inspection. Krude Heavy Industry provides factory inspection documentation with each piece of equipment upon delivery to assist users in completing the inspection application process.
The full range of CD1/MD1 wire rope electric hoists manufactured by Krude Heavy Industry has passed type testing conducted by the National Lifting Machinery Quality Supervision and Inspection Center and comes with a 12-month warranty and lifetime technical support. For more details, please refer to the relevant product pages:CD1 Single-Speed Wire Rope Electric Hoist、MD1 Type Two-Speed Wire Rope Electric Hoist. For heavy-duty lifting, please refer toHC Series Square-Body Electric Hoist。
