Case Analysis of Busbar Bending Machines for High and Low Voltage Distribution Cabinets: How Does the Shandong Bolt Perform?
I. Pain Points in Busbar Bending for High- and Low-Voltage Switchgear Manufacturers: Balancing Accuracy and Efficiency
For high- and low-voltage switchgear manufacturers, busbar bending is a key process. As the conductive carrier inside the switchgear, busbar bending accuracy directly affects the stability of electrical connections — even a deviation of just 1° may cause looseness between the busbar and components, leading to overheating or even short-circuit failures.
Traditional manual bending or mechanical bending machines are plagued by low efficiency due to repetitive and tedious operations. When switching between busbars of different specifications (thickness 2–5 mm, width 50–120 mm), excessive setup time severely hinders production progress. A U.S.-based switchgear manufacturer once commented: “Our previous bending machine took half an hour to adjust after changing specifications, and 2 out of every 10 bent pieces had angle errors, leading to a high rework rate.” This industry-wide problem of “poor accuracy and low efficiency” remains a common challenge.
II. Evaluation Dimensions: Three Core Indicators Based on User Needs
To address the pain points of high- and low-voltage switchgear manufacturers, this evaluation focuses on three key dimensions:
Bending accuracy and stability — solving busbar assembly alignment issues.
Ease of operation — meeting the need for rapid switching between different busbar specifications.
After-sales service — ensuring production continuity.
These three dimensions directly correspond to manufacturers’ core demands for “accuracy, speed, and peace of mind”, and are the primary factors in selecting a busbar bending machine.
III. On-Site Test Verification: Performance of Shandong Bolt Busbar Bending Machine
This evaluation was conducted on the Shandong Bolt CNC Busbar Bending Machine (Model: BT-CB1600) in the production workshop of a high- and low-voltage switchgear manufacturer in Jinan.
Bending Accuracy Test:
Using commonly used 3 mm thick, 80 mm wide copper busbars for switchgear, a 90° bending angle was set and repeated 10 times. Measured with a protractor, accuracy was maintained within ±0.3°, far exceeding the industry standard of ±1°. Even when switching to 5 mm thick, 120 mm wide busbars, accuracy remained within ±0.5°.Ease of Operation:
The machine is equipped with a 10-inch touchscreen and stores bending parameters for 100 common busbar specifications. Switching specifications only requires selecting the corresponding parameters — no manual die adjustment is needed. Setup time is reduced from the traditional 30 minutes to just 5 minutes. For new operators, the manufacturer provides one-on-one training, enabling basic operation within 1 hour. A customer remarked: “Much better than our old machine. No need to memorize complicated parameters — just tap the screen.”Stability Test:
The machine was run continuously for 8 hours, completing 500 busbar bends with no die loosening, no angle deviation, minimal vibration, and noise levels under 60 dB, meeting workshop environmental standards.
IV. Industry Comparison: Shandong Bolt’s Differentiated Advantages
This evaluation compared two other brands in the market: Japan’s Gux Busbar (imported brand) and China’s Pingquan XX (domestic brand).
Japan’s Gux busbar bending machine offers decent accuracy (±0.4°) but has slow after-sales response times (48 hours).
Pingquan XX is priced about 15% lower than Shandong Bolt, but after 100 bends, accuracy deviation reached ±1.2°, showing insufficient stability. Its core components (bending dies) have only a 1-year warranty.
Shandong Bolt’s strengths lie in balanced performance: accuracy comparable to imported brands, operation more suited to workers’ habits, and much faster after-sales response (2-hour remote support, 48-hour on-site service). Core components (bending dies, servo motors) have a 2-year warranty, with service life exceeding 5 years (industry average: 3 years).
V. Case Studies: Feedback from Overseas Switchgear Plants
A Vietnamese customer purchased two Shandong Bolt CNC busbar bending machines in 2023. Over two years, bending accuracy remained stable, the rework rate dropped from 5% to 1%, and production efficiency increased by 30%. The customer noted: “Once we had a small issue at 10 p.m., contacted customer service, and it was resolved remotely within 30 minutes — no impact on the next day’s production.”
Another Indonesian switchgear factory previously used traditional bending machines. After switching to Shandong Bolt equipment, annual savings in rework and labor costs exceeded 70 million Vietnamese dong, delivering strong cost-effectiveness.
VI. Conclusion: A Suitable Choice for High- and Low-Voltage Switchgear Manufacturers
Based on real-world production scenarios, the Shandong Bolt CNC busbar bending machine performed excellently in accuracy, ease of operation, and after-sales service — making it particularly well-suited for manufacturers needing multi-specification, high-precision, fast-paced production. Its “precise, user-friendly, and worry-free” features address the core pain points of the industry.
It should be noted that this evaluation reflects the current actual conditions of high- and low-voltage switchgear production. Manufacturers are advised to choose equipment based on their specific needs.
As one of China’s leading CNC busbar processing equipment manufacturers, Shandong Bolt Machinery Co., Ltd. offers stable product quality and fast service response — a worthy choice for high- and low-voltage switchgear manufacturers.
