Huizhou Antenk Electronics Co., Ltd. (IATF16949, ISO9001, ISO14001 certified) presents the Copper Tube End, a precision machined electrical terminal designed for high current cable crimping and lug connections. Manufactured from high purity copper (purple copper / C11000) for excellent electrical and thermal conductivity, the terminal features a bright tin plated surface finish that provides superior corrosion resistance and solderability. Per the attached specification, key dimensions include overall length L=26.5mm, tube outer diameter B=15.0mm, inner diameter d2=6.5mm (cable entry), flange diameter D=10.5mm, and mounting hole center distance F=16.5mm with a screw hole diameter of 8.2mm (d1) for stud or bolt termination. The product meets strict quality requirements: burrs ≤0.05mm, no stamping marks, sharp edges or mechanical damage, and a uniform, bright plating without oxidation, fog spots or peeling. Operating temperature range is suitable for high power applications. The robust tubular barrel accepts stranded or solid copper cables, and the flag or ring terminal end allows secure bolted connection to busbars or equipment terminals. RoHS and REACH compliant.
Applications include power distribution boxes, industrial control panels, battery bank connections, inverter systems, electric vehicle charging equipment, welding machines, and heavy duty electrical apparatus where reliable high current termination is required. Usage method: strip the cable end to the appropriate length, insert the conductor fully into the tube barrel (d2=6.5mm), crimp using a hex or indent crimping tool, then secure the ring/flat end (D=10.5mm) to a stud or screw through the mounting hole. For enhanced insulation, heat shrink tubing can be applied over the crimped barrel. Precautions: always match cable cross section to the inner diameter (recommended 6-10mm² cable), never exceed the current rating (estimated 50-80A depending on cable), ensure crimp tool is properly calibrated, and avoid reusing a crimped terminal. Advantages over competitors: Antenks copper tube ends are made from oxygen free copper with bright tin plating that exceeds standard electroplating thickness, ensuring low contact resistance (<1mΩ) and long term reliability. The precisely controlled burr free edges prevent cable strand damage during insertion. Low MOQs of 1000 pieces available with fast lead times.
Production process: precision die casting or cold heading of high purity copper, CNC turning for dimensional accuracy (tolerances B±0.5mm, d2±0.3mm, H±1.0mm, D±0.5mm), deburring and surface cleaning, bright tin barrel plating with thickness 3-8μm, 100 percent visual inspection (no oxidation, peeling, fog spots), dimensional check using profile projector, 48 hour salt spray corrosion test, and final QC with lot traceability. Free samples and 2D/3D CAD drawings available upon request. Contact Antenk for custom lengths, plating (silver, gold) and tube inner diameters.
