Yes, with two safeguards.

1. A check valve at each machine. If one machine is under pressure when another pressurizes, the sudden air demand can reverse flow and push abrasive-laden air back into the compressed-air supply. Install a Clemco ball cone check valve at each machine's air supply — 1-1/4″ NPT (stock no. 02088) for a TLR-100 with 1″ NPT inlet valve, or 1-1/2″ NPT (stock no. 02296) for a TLR-300. Do not use swing check valves; the swing gate can break in blast machine service. Point the flow arrow toward the machine. If machines are grouped close together, run separate air lines to each from a receiver tank or manifold.

2. Hose identification kits. With two or more machines close together, cross-connecting a control hose or blast hose to the wrong machine can unintentionally actuate a machine someone else is working on. Keep hoses of equal lengths, mark every hose and coupling with a hose identification kit — stock no. 15890 for two machines, 15891 for up to four — and trace and verify each connection before operating.