Lip Edge Flatness
The dustpan lip must sit flat on the floor for effective sweeping. Mold design controls warpage at this critical edge through cooling layout, gate position and part geometry review.

Custom injection mold for plastic dustpans, supporting household and professional cleaning product tooling with efficient production design.
Plastic dustpans range from simple handheld designs to professional-grade products with long handles and rubber lip inserts. The mold must produce parts with flat floor-contact edges, consistent wall thickness and reliable attachment points.
Shengqi reviews the dustpan design including overall dimensions, lip profile, handle socket, reinforcement rib layout and any overmolding or insert requirements before mold design.
For cleaning product molds, production efficiency is important since these are typically high-volume, cost-sensitive products. Cavity optimization and cycle time reduction are key engineering considerations.
The dustpan lip must sit flat on the floor for effective sweeping. Mold design controls warpage at this critical edge through cooling layout, gate position and part geometry review.
Dustpan bodies are typically thin-walled for material efficiency. Filling balance, flow length and pressure requirements are analyzed to avoid short shots.
Pole attachment sockets or handle mounting points need structural reinforcement and precise dimensions. Thread forming or snap-fit features may be integrated into the mold.
Multi-cavity layouts, fast cycling, automated ejection and stacking features are considered to support high-volume, cost-efficient production.



