Full Pressure Lubrication: A frame-driven lube oil pump provides cooled oil through a full-flow oil filter to all moving parts in the frame. A divider-block system supplies metered oil to cylinder bores and rod packings.

High-Strength Bolting: Durable Grade 8 bolting on all loaded joints combined with specially designed fatigue-fighting bolts on all valve caps ensure ultimate holding strength.

Rigid Connecting Rods: The JG/JGA compressors feature durable connecting rods manufactured from forged steel with 4 bolts and a heavy-duty “I” section.

Rugged Crossheads: One-piece, long-life crossheads with hardened, ground steel crosshead pins and direct, full-pressure lubrication at the top and bottom for minimum wear.

Innovative Cylinders: Ariel’s single and double-acting non-cooled cylinders eliminate the cost and maintenance associated with water cooling.