Based on this product's specifications, here are some alternatives and similar models
Riso Master A3 Z-Type high-speed duplicator S-8131E (ZType 37) compatible with S-8130E
Summary description:
Riso Master A3 Z-Type high-speed duplicator model S-8131E (ZType 37) is designed for fast, reliable A3 monochrome or spot-color duplication tasks. Compatible with S-8130E, it suits schools, offices and print shops needing large-volume short-run reproduction. The unit offers high throughput and durability for economical document and form production.