Sofia (AJAX) AJ250, AJ235, CU582, SU401, SU502, SP401, SP402 Lathes. Operator's Instruction and Maintenance Instructions. Sofia (often branded "Ajax") AJ250, AJ235, CU582, SU401, SU502, SP401, SP402 Lathes. Operator's Instruction and Maintenance Instructions. Manufacturers: Sofia Models: AJ235 AJ250 CU582 SP401 SP402 SU401 SU502 Contents: Operators Manual Maintenance Manual Parts Manual