Injection molds and stamping dies are heavy and expensive. Moving them on an unsuitable trolley risks damaging the mold and injuring staff. A properly designed mold cart (die cart) makes mold changes faster and safer.
Key Design Points
- A high-capacity deck: use thick plate or beams under the deck, because a mold concentrates its weight on a small area
- Deck height matched to the machine platen: lets the mold slide in and out without lifting
- Edge stops or anti-slide features: stop the mold sliding off while pushing or braking
- Multiple levels for storage: if the cart also stores molds, design the levels and spacing to your real mold sizes
- Strong handles: fully welded to take pushing and pulling forces
Choosing Wheels for a Mold Cart
Mold carts usually carry high total loads, so use cast-iron-core PU wheels that carry heavy weight without deforming at full load, and always include brake casters to hold the cart still while the mold slides into the machine. If the load exceeds what four wheels can carry, add more wheels or design the frame to spread the weight further.
Safe Use
- Apply the brakes every time before sliding a mold in or out
- Never load beyond the design capacity
- Inspect wheels, brakes and welds regularly
Summary
A good mold cart carries the real load, matches machine height, stops molds sliding and locks firmly. Because mold and machine sizes differ in every plant, a custom-built cart is usually a better fit than a ready-made one.