European Municipal Sanitation Equipment Supplier

240L wheeled municipal bin mold project

PAIN POINTS

The 240L deep-cavity bin is thin-walled and deep. The old mold caused uneven injection pressure transfer, leading to locally thin walls (as thin as 1.6mm) that cracked during garbage truck arm lifting. Uneven cooling caused elliptical deformation at the rim, preventing the auto-lid mechanism from sealing properly.

MOTEK SOLUTION

• Used multi-point sequential valve gate system with high-pressure injection, controlling wall thickness deviation within ±0.2mm.
• Designed dedicated conformal cooling ring for the rim, ensuring roundness ≤1mm for auto-lid assembly.
• Used 718H pre-hardened steel inserts with enhanced cooling at the bottom to eliminate sink marks and improve compressive strength.

"motek's bin mold helped our product pass all EN 840 tests on the first try, with 3x longer service life under robotic arm lifting."

North American Smart Home Brand

12L smart sensor bin inner/outer bucket mold project

PAIN POINTS

Smart bins require premium appearance (Class-A surface) and precise inner/outer bucket fit. The old mold produced weld lines and flow marks on the inner bucket's outer wall, and uneven shrinkage caused gap out-of-tolerance, jamming the sensor lid. The transparent window area had gas marks.

MOTEK SOLUTION

• Used S136 mirror steel with high-gloss injection to eliminate weld lines and flow marks, achieving SPI A1 surface.
• Used Moldflow to optimize shrinkage compensation for inner/outer buckets, ensuring gap stability within 0.3mm.
• Applied sequential valve gating and precise mold temperature control at the transparent window area to eliminate gas marks and ensure clarity.

"motek's mold elevated our smart bin to home-appliance-grade appearance, with flawlessly smooth sensor lid operation."