Cast iron Welding Tables

Dual-time effect process
After the cast steel parts are cast, they are first subjected to manual aging annealing (held at 600–700℃ for 8–12 hours with slow cooling) to eliminate the internal stress generated during the casting process; before fine processing, they undergo natural aging (placed outdoors for 3–6 months), which further releases residual stress. The dual-time effect treatment can prevent the tabletop from warping or deforming after long-term use, ensuring accuracy and stability. This is an advantage that ordinary steel plate welding platforms cannot match.

Scrubbing and grinding process grade
The tabletops of high-precision models will adopt manual scrubbing and grinding technology, with accuracy grades reaching 0 grade / 1 grade (plane error ≤ 0.05mm/m), meeting the requirements for precise assembly and inspection; the conventional welding platforms have a 2-grade accuracy, which can balance cost and practicality. The micro-depressions formed by scrubbing can also store lubricating oil, reducing friction damage between the workpiece and the tabletop.

Initial Purchase vs Long-Term Cost
The initial purchase cost of the cast steel flat welding platform is higher than that of the steel plate welding platform, but it has a lifespan of 10–15 years (while steel plate platforms typically last for 3–5 years), and it maintains high precision with no frequent replacements or corrections required; minor damage to the platform can be repaired by scraping, significantly reducing maintenance costs, and it offers better long-term cost performance.

Residual Value Advantage
The cast steel material is highly durable and less prone to damage. The residual value of second-hand equipment can reach 40%–50%, much higher than the 20% of steel plate platforms. This makes it more advantageous for resale or replacement in the later stages.