Solar Energy Manufacturing

For slew drive housings and bearing interfaces exposed to cyclic loading and weather, we typically recommend 316L stainless steel for chloride resistance (critical in coastal installations), duplex 2205 for high-strength corrosive environments, or aluminum 6061-T6 for lightweight actuator brackets where load demands are moderate. Torque tube couplings are commonly machined from hot-dip galvanized carbon steel per ASTM A153 for long-term sacrificial corrosion protection. Material selection depends on your site class (IEC 61724), mechanical loads from wind stow calculations, and target design life.

For bearing bore seats and shaft mating surfaces on slew drives and linear actuator interfaces, we achieve ±0.0005" (±0.013 mm) with surface finishes of Ra 0.8 µm or better — critical for proper bearing preload and fatigue life under repeated cyclic loading. Structural mounting brackets and pier cap adapters are typically held to ±0.005" (±0.13 mm). Our 5-axis CNC capability handles multi-feature parts like worm gear housings where concentricity between the worm bore and output shaft seat is critical.

For aluminum tracker components, we recommend Type III hard anodize (per MIL-PRF-8625) providing a 0.002–0.003" abrasion-resistant oxide layer, often combined with TGIC polyester powder coat (2–5 mil) for UV resistance. For steel mounting hardware, hot-dip galvanizing per ASTM A153 provides 50–100 µm sacrificial zinc coating — the industry standard for utility-scale racking. Stainless steel parts benefit from citric acid passivation per ASTM A967. For extreme desert UV and sand abrasion, we recommend combining anodize + powder coat. Actual coating life depends on site conditions, maintenance, and exposure severity.

Yes. We CNC-machine finned heat sinks from aluminum 6061-T6 (thermal conductivity ~167 W/m·K) with fin aspect ratios up to 10:1 and fin spacing down to 2 mm for forced-convection inverter designs. For natural-convection string inverters, we machine wider fin spacing (4–6 mm) with optimized surface area. We also machine IGBT module cold plates with internal flow channels from aluminum or copper C110. Typical heat sink dimensions range from 100 mm to 400 mm with ±0.005" flatness on the mounting interface.

We laser-cut and form mounting rails, pier cap adapters, splice plates, and module clamps from galvanized steel (G90), aluminum 5052-H32 (excellent formability and saltwater resistance), or aluminum 6061-T6 (higher structural strength). Thickness ranges from 0.060" to 0.250" depending on structural requirements per UL 2703 and local building codes. Typical tolerances are ±0.005" on cut features and ±0.010" on formed dimensions. Powder coat or hot-dip galvanize finishing available for additional corrosion protection.

Absolutely. We handle the full tracker hardware development cycle: 3D-printed fit-check models (typically 1–5 days) for validating connector routing and sensor housing geometry, CNC-machined functional prototypes (typically 10–15 days) for tracker field testing, and production batches of 100–10,000+ pieces with full material traceability per ASTM/ISO standards. This lets you validate form, fit, and function at each gate before committing to production quantities — critical for tracker OEMs managing IEC 62817 certification timelines.