Limitations:

• The patterns are very costly and therefore are economical only if utilized in large scale production. In a distinctive application, shell moulding becomes economical over sand moulding above 15000 pieces due to the higher pattern cost.
• The size of the casting attained by shell moulding is limited. Normally castings weighing up to 200kg might be made, though in smaller castings up to a weight of 450 g might also be built.
• Highly complicated shapes may not be achieved.
• More sophisticated equipment is required for handling the shell moldings such as those needed for heated metal patterns.

Applications:

Cylinders and cylinder heads for automobile transmission parts, air cooled I. C. engines, brake beam, cast tooth bevel gears,  transmission planet carrier, track rollers for crawler tractors,  chain seat bracket, steel eyes, gear blanks,  small crank shafts, refrigerator valve plate are some of the general applications of shell mould castings.