OpeningYour drawing. Our machines. A heatsink that fits right the first time.We machine thyristor rectifier heatsinks to your exact print. Every fin pitch, every mounting hole, every surface flatness
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OpeningYour drawing. Our machines. A heatsink that fits right the first time.We machine thyristor rectifier heatsinks to your exact print. Every fin pitch, every mounting hole, every surface flatness
Your drawing. Our machines. A heatsink that fits right the first time.
We machine thyristor rectifier heatsinks to your exact print. Every fin pitch, every mounting hole, every surface flatness is verified before shipment. We do not guess. We measure.
We are a precision manufacturing factory in Dongguan, China. 20 years on CNC, stamping, springs, and heat sinks. You send the PDF or STEP. We return a firm quote in 12 hours.
| Parameter | Value | Notes |
|---|---|---|
| Material | Aluminum 6063-T5, 6061-T6, Copper C1100 | Extruded or CNC-machined from solid |
| Surface finish | Clear anodize (8–12 µm), black anodize, or as-drawn | Mil-spec anodize available |
| Flatness | 0.05 mm / 100 mm | Verified on granite plate |
| Hole tolerance | ±0.05 mm | For thyristor mounting (e.g., 2-hole or 4-hole patterns) |
| Threaded inserts | Optional, brass or stainless | Torque-tested to spec |
| CNC process | 3-axis and 4-axis machining centers | Fin pitch down to 3 mm |
| Secondary ops | Deburring, vibratory finishing, pressure washing | No sharp edges |
| Batch size | 1 – 100,000+ | No MOQ, tooling amortized per order |
| Inspection | CMM report per batch | Dimensional and surface finish included |
We use 6063-T5 for most extruded heat sinks – good thermal conductivity (201 W/m·K) and easy to anodize. For higher strength or welded assemblies, we switch to 6061-T6. Copper is available for extreme thermal loads, but we will tell you if aluminum is enough. No upsell.
1. Batch-traceable quality Every heatsink gets a unique batch number. We track material lot, machine operator, and inspection results. If a problem appears in your line, we trace it back in minutes, not weeks. This is standard for us, not a premium service.
2. Inspection report per batch You do not have to trust us. Each shipment includes a dimensional report – CMM data for critical features, flatness readings, and surface finish values. Your incoming QC can verify in 10 minutes. We have passed audits from automotive, medical, and power electronics buyers.
3. One factory for CNC + stamping + springs + heatsink Your thyristor module needs a heatsink, a spring clamp, and a stamped busbar. We make all three under one roof. You get one purchase order, one quality system, one shipping point. Fewer suppliers, fewer delays, fewer excuses.
Thyristor rectifier heatsinks are not decorative. They pull heat away from high-power semiconductors in continuous duty.
In every case, the heatsink is the difference between a 20-year service life and a field failure. We machine the contact faces to 0.05 mm flatness so the thermal grease layer is thin and even. That is where most cheap heatsinks fail – warped surfaces, air gaps, hot spots.
Looking for a different part? We also machine Custom Copper Skived Fin Heatsinks | Precision Manufacturing Made in China in the same Dongguan factory.
Q: Do you really have no MOQ? A: Yes. We machine one prototype or a million pieces. For one-off heatsinks, we use standard extruded profiles and cut to length. For production, we make dedicated tooling only when volume justifies it. You pay for parts, not for minimums.
Q: What tolerance and quality can you guarantee? A: Standard is ±0.05 mm on mounting faces and hole positions. Flatness is 0.05 mm per 100 mm. We include a CMM inspection report with every batch. If you need tighter – ±0.02 mm – we can do it, but we will tell you the cost impact first.
Q: What is the lead time for custom heat sinks? A: Prototype (1–5 pcs): 7–10 days. Production (100–1000 pcs): 15–20 days. Large runs (10,000+): 25–30 days. We ship worldwide via DHL, FedEx, or sea freight. We quote exact dates, not ranges, when you send the drawing.
Q: Do you provide material certificates? A: Yes. Every batch comes with a mill certificate for the aluminum or copper, plus our own inspection report. For RoHS or REACH compliance, we provide test reports from a third-party lab. No extra charge for standard certs.
Stop comparing quotes from middlemen. Talk to the factory that machines the part.
Send us your drawing – PDF, STEP, or even a hand sketch. We will check the design for manufacturability, suggest a better fin layout if it helps, and return a firm quote in 12 hours.
Custom heat sinks, made in China, with precision manufacturing you can verify. No MOQ. No runaround. Just a quote that matches the drawing.
| Parameter | Capability |
|---|---|
| Materials | AL6063/6061/5052, pure copper C1100, copper-aluminum composite |
| Process | Extrusion, CNC machining, skiving, forging, die casting, stamping fins |
| Fin Types | Extruded, pin fin, skived, folded, bonded, heat pipe, vapor chamber |
| Surface | Black anodizing, clear anodizing, nickel plating, powder coating |
| Size Range | Max 1500 x 400 x 300 mm |
| Thermal Test | Thermal resistance and heat dissipation data per batch |
| Prototype | 5-7 days, no MOQ on samples |
| Inspection | CMM, thermal resistance tester, full report per batch |
