How to determine if a food-grade lubricant is suitable for specific food processing casters?

To determine whether a food-grade lubricant is suitable for specific food processing casters, a comprehensive assessment must be conducted based on three core criteria: regulatory compliance, environmental compatibility, and equipment compatibility. This can be confirmed by the following steps:

First, verify compatibility with regulatory certifications. Prioritize confirming that the lubricant has received a reputable food contact safety certification, such as the internationally recognized NSF H1 certification, the EU EU 10/2011 certification, or the Chinese GB 4806.10 standard, and that the certification scope specifically includes "parts of equipment that may come into incidental contact with food." Also, verify the lubricant's safety data sheet (SDS) to ensure that the base oil (such as food-grade white oil or synthetic ester) and additives (antioxidants, rust inhibitors, etc.) are listed on the local food contact material compliance list and contain no prohibited ingredients such as heavy metals and polycyclic aromatic hydrocarbons.

Second, assess environmental compatibility. Choose lubricants based on the temperature, humidity, and chemical environment in which the casters will be used. For high-temperature environments (such as bakeries), confirm the lubricant's temperature resistance (e.g., ≥150°C for continuous use, ≥200°C for intermittent use) and that it does not release toxic substances at high temperatures. For humid or washdown environments, choose a lubricant that is water-resistant and demulsifiable to prevent washout. For acidic or alkaline environments (such as pickling areas), it must exhibit corrosion resistance.

Finally, verify the compatibility of the equipment materials. Check the compatibility of the lubricant with the caster material: For metal bearings, confirm their wear and rust resistance. For rubber/polyurethane wheels, verify the manufacturer's approval to avoid lubricant-induced wheel swelling and degradation. Additionally, refer to the caster manufacturer's recommended model to ensure the lubricant's viscosity and filling method are compatible with the caster structure (e.g., grease nipple design) to avoid equipment failure due to improper lubrication.