5-Ton FEM Standard Hoist Exported to Vietnam & Passed Load Test

Project Background and Export Overview

This case covers a successful crane retrofit project for a foreign-funded precision machinery manufacturing enterprise in Ho Chi Minh City, Vietnam. A 5-ton FEM standard low-headroom wire rope electric hoist manufactured in China was exported for the project. The customer’s newly built workshop had extremely high requirements for the headroom, smooth operation, and positioning accuracy of the hoisting equipment. After multiple rounds of technical selection, the customer finally abandoned traditional Japanese and local brands. They selected the FEM/DIN compliant lightweight FEM standard hoist. After manufacturing, the equipment smoothly passed customs and was exported to the project site in Vietnam. According to international standards and local laws, it passed the strict on-site static load test for lifting equipment at one time and was officially delivered to the production line.

Technical Parameter Configuration of Factory Equipment

The core configuration of this 5t FEM standard hoist was upgraded and customized. This addressed the high-temperature and high-humidity industrial environment in southern Vietnam, alongside strict customer requirements for trolley traveling and lifting positioning. The following table lists the core technical parameters delivered for the project:

On-site Static Load Test Process

After installation at the Vietnam site, engineers from the Vietnam National Center for Technological Safety Inspection co-hosted the test. This tested steel structure strength and braking safety performance.

• Test Preparation:Check the electrical circuits, limit switches, and wire rope reeving comprehensively. Calibrate VFD parameters and prepare standard cast iron weights.
• 25 Times Static Load Implementation:The test load was set at 1.25 times the rated load (6.25 tons). Lift the 6.25-ton weights 100mm off the ground, then cut the power and hover for 10 minutes. During this period, the FEM standard hoist structure and brakes closed tightly. After unloading, a laser rangefinder detected no permanent plastic deformation on the main girder. Welds and connectors sustained no damage, passing acceptance at one time.

Core Engineering Advantages Analysis of FEM Standard Hoist

The product passed strict overseas third-party testing and received high praise, directly benefiting from its pure European engineering design:

• Low-Headroom Compact Structure:Different from traditional CD hoists, this FEM standard hoist adopts a C-type structure with thrust-driven pulley blocks. This greatly reduces the limit distance from the hook to the lower flange of the I-beam. The headroom is reduced by over 30% compared to traditional hoists. It effectively increased vertical working space by nearly 1 meter for the Vietnamese customer, directly reducing factory infrastructure investment costs.
• VFD Control and Hard-Tooth Gearbox:Both lifting and traveling adopt variable frequency speed regulation systems, which eliminate mechanical shocks during starting and stopping. The gearbox uses a three-in-one drive architecture with hard-tooth ground gears. Combined with a fully enclosed lubricating oil bath design, it maintains low noise, zero oil leakage, and maintenance-free features under long-term high-load operations.
• Real-time Intelligent Safety Monitoring:The built-in safety monitor records the hoist’s working cycles, jogging times, overload lifting status, and Safe Working Period (SWP) in real time. This provides precise data support for the subsequent digital equipment maintenance of overseas customers.

Customer Feedback and Engineering Conclusion

Three months after delivery, the Vietnamese customer sent back official technical feedback. The report pointed out that the 5t FEM standard hoist performed excellently in hoisting and positioning precision machinery molds. Its micro-speed operation reduced the mold docking impact rate to zero. Meanwhile, thanks to the high protection class design, the equipment experienced zero electrical failures in the high-humidity environment of the Vietnamese rainy season.

Engineering Conclusion: The 5t FEM standard hoist successful export and passing of the 1.25 times static load test prove that this series reaches international first-line standards. It excels in structural lightweighting, braking safety factors, low-headroom design, and harsh industrial environment adaptability. This project not only saved building infrastructure costs for the customer, but also established technical and quality advantages for the company in the Southeast Asian high-end industrial equipment market.