Published: 2026-08-21
Flat cables for lifting machinery, the two most common models are YVFB and YFFB, many purchasers can't tell them apart and often choose the wrong one when placing orders.
First, let's talk about the similarities: Both have a flat structure, suitable for frequent winding and unwinding, and the conductors are all soft copper conductors (F stands for flexible structure). They are widely used in hoisting equipment such as cranes, gantry cranes, and electric hoists.
The core difference lies in the sheath material:
YVFB: The sheath is made of a nitrile compound (NBR/PVC composite), with good elasticity, oil resistance, and tensile strength. It has a high cost-performance ratio and is the most commonly used model in the lifting industry.
YFFB: The sheath is made of a nitrile PVC compound (a softer and more oil-resistant formula), with better flexibility and superior low-temperature performance, suitable for frequent movement, low-temperature environments, or places with heavier oil contamination.
Simply put: for regular driving and gantry cranes, YVFB is sufficient; if the operating environment has heavy oil contamination, low temperatures, or particularly high bending frequency, choosing YFFB is more reliable.
In addition, flat cables have another selection point: **load-bearing elements**. Flat cables that are vertically suspended over long distances must have built-in steel wire ropes or reinforced cores; otherwise, the weight of the cable itself will break the conductors. When purchasing, it is essential to specify the lifting height and suspension method.
Selection Recommendations: For lifting conditions, first report the lifting height, winding method, ambient temperature, and oil contamination situation. Shanghai Suoqi flat cables support full customization of YVFB/YFFB/YFFBG series, can have a steel-reinforced core built-in, and calculate load-bearing capacity based on the lifting height.
About Shanghai Suoqi
Shanghai Suoqi Electric Wire & Cable Co., Ltd. is a specialized cable enterprise focusing on the research and development, design, production, and sales of special flexible cables. The company's products cover a series including reel cables, flat cables, drag chain cables, encoder cables, polyurethane cables, seawater-resistant cables, seawater-resistant network cables, and high-altitude vehicle cables, which are widely used in ports machinery, mining, industrial automation, marine engineering, and other fields. For more product information or inquiries, please call 13311756197 (same number on WeChat).