rail transfer trolley for foundry workshop 1-300 ton-Perfect. Low price heavy duty traverser rail electric 30 ton transfer trolley $4,000.00 - $4,500.00 / Set 1.0 Sets (Min Heavy duty Inter bay aluminum ingot transfer fabrication rail transfer car workshop handling $3,500.00 - $4,000.00 / Set 1.0 Sets (Min. Order) $3,500 .00.