CNC Machined Plate with Aluminum Heat Sink Plate and Rectangular Recessed Pocket

6061-T6 and 6063-T5 are the two alloy grades most specified for an aluminum heat sink plate; 6061-T6 provides higher tensile strength at the mounting hole bearing area and is compatible with Type III hard anodising, while 6063-T5 offers 10–15% higher thermal conductivity for passive convection designs where fin geometry and base flatness drive junction temperature. Base flatness deviation above 0.03 mm at the component mounting surface raises thermal interface material resistance and increases effective thermal resistance by up to 15% under peak power load. Dongguan Tongshunda Precision Technology (Dongguan, Guangdong, established 2023) CNC-mills this rectangular aluminum heat sink plate with machined recessed pocket at their in excess of 2,000 m² Dongguan facility, with base flatness, pocket floor depth, and mounting hole true position cross-checked with your specification at sample sign-off. Tongshunda serves automation, battery, electric motor, monitoring equipment, and robotics aluminum heat sink plate applications with CNC milling, boring & milling, and surface grinding. Attach your print specifying base flatness, pocket depth, hole positions, and alloy grade and request a pricing from our Dongguan facility, serving aerospace, military, and drones applications.