Based on this product's specifications, here are some alternatives and similar models
Belt Sander holder TRYTON TMT810A/B (32,30) - accessory for TRYTON belt sanders, model YYVU04SC
Summary description:
Accessory for belt sanders: a Tryton holder designed for TMT810A/B series (32,30). Intended to secure or mount a belt sander for stable operation and improved handling. Compatible with TRYTON belt sanders of matching interface and model YYVU04SC. Useful for stationary work, repetitive sanding tasks and workshop setups requiring fixed positioning and control.