These are Cnc Milled Aluminum Brackets Custom Parts — structural mounting plates and angle brackets machined from solid aluminum billet on 3-axis and 5-axis CNC centers. You get ±0.005 mm positional
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These are Cnc Milled Aluminum Brackets Custom Parts — structural mounting plates and angle brackets machined from solid aluminum billet on 3-axis and 5-axis CNC centers. You get ±0.005 mm positional
These are Cnc Milled Aluminum Brackets Custom Parts — structural mounting plates and angle brackets machined from solid aluminum billet on 3-axis and 5-axis CNC centers. You get ±0.005 mm positional tolerance, 0.01 mm true position runout, and 6061-T6 hardness at 95 HRB, with a standard 7-day lead time for prototypes and 15 days for production runs. This is precision manufacturing with zero casting porosity, no weld distortion, and a surface finish down to Ra 0.4 µm.
Cast brackets hide internal voids. Stamped brackets bend under repeated load. We start with certified aluminum plate — 6061-T6, 7075-T7351, or 5083-H112 — and remove material to create the final geometry. The grain structure stays continuous, so your bracket carries load exactly where the drawing says it will. For a 3 mm thick bracket with four mounting holes, we hold hole-to-hole spacing at ±0.01 mm. That is not possible with a die-cast part. We also eliminate the $2,000–$15,000 mold cost, which is why we offer no MOQ on these Cnc Milled Aluminum Brackets Custom Parts.
Bracket chatter is the enemy of flatness. For walls down to 0.8 mm, we use high-speed trochoidal milling with a 6 mm carbide end mill at 18,000 RPM. This reduces radial cutting force by 40% compared to conventional slotting, so your thin wall does not flex or warp. For deep pockets over 25 mm deep, we switch to variable-flute tools that break harmonic vibration. Every toolpath is verified in CAM simulation before the first chip hits the machine. If your design has a 90-degree internal corner, we add a 0.5 mm radius — a sharp corner requires a fragile tool and creates a stress riser.
We stock 6061-T6 (yield 276 MPa), 7075-T7351 (yield 435 MPa), and 2024-T351 (yield 320 MPa) in thicknesses from 1.5 mm to 80 mm. For parts over 80 mm thick, we order certified plate and run a T6 or T7351 heat treat cycle in our partner furnace. Standard surface finish is Ra 1.6 µm for functional faces and Ra 0.8 µm for sealing surfaces. If you need a wear-resistant surface, we add hard anodizing to 40–50 HRC (MIL-A-8625 Type III) — this is common for brackets that slide against a mating rail. For cosmetic brackets, clear or black anodize is included in the same 7-day lead time.
| Specification | Value / Range |
|---|---|
| Available materials | 6061-T6, 7075-T7351, 2024-T351, 5083-H112 |
| Stock thickness | 1.5 mm – 80 mm (up to 150 mm on request) |
| Hardness (as-machined) | 6061-T6: 95 HRB; 7075-T7351: 150 HB |
| Hardness (after anodize) | 40–50 HRC (Type III hard coat) |
| Positional tolerance | ±0.005 mm (for hole patterns under 200 mm) |
| True position runout | 0.01 mm (relative to datum A) |
| Surface finish Ra | 0.4 µm (machined), 0.8 µm (sealing face) |
| Flatness (per 100 mm) | 0.02 mm on 6 mm thick bracket |
| Prototype lead time | 3–7 days (DHL / FedEx) |
| Production lead time | 15–20 days for 1,000 pcs |
| Minimum order quantity | No MOQ — 1 piece accepted |
Every Cnc Milled Aluminum Brackets Custom Parts order leaves with a full dimensional report. We use a Zeiss CMM with 0.001 mm resolution to check critical hole positions, true position runout, and surface profile. For brackets with more than 10 features, we also provide a 3D scan comparison (GOM) showing deviation color maps — you see exactly where the part is 0.005 mm high or low. Hardness is verified on a Rockwell tester on the same batch as your parts. If you need PPAP Level 3, we produce it without extra charge for orders above 500 pieces. We have been doing precision manufacturing here in Dongguan since 2004, and our inspection records are kept for 10 years.
If your bracket has undercuts, angled mounting faces, or compound curves, we move it to a 5-axis DMG MORI. This lets us machine the bracket in one clamping, which holds angular tolerances at ±0.02 degrees. For simple L-brackets or U-brackets, a 3-axis machine with a fourth-axis rotary is faster and cheaper — you pay for the machine time, not the machine label. We recommend 5-axis when the bracket has more than 4 separate faces that need machining. Send us your STEP file and our engineers will suggest the most cost-effective process. This is the same logic explained in our CNC cutting tool selection guide, where tool geometry determines what is physically possible.
Brackets over 300 mm long or under 2 mm thick are prone to bending in transit. We use foam-lined plywood crates for any part longer than 500 mm. For small brackets, we use anti-static bubble wrap and compartmentalized boxes so parts do not knock together. Each bracket gets a corrosion-preventive oil film (VCI paper) unless you specify dry or anodized surfaces. We ship DHL, FedEx, or UPS from our Shenzhen warehouse — most prototypes reach the US or EU in 3–4 business days. Our shipping team photographs the packed crate before sealing and sends you the photo with the tracking number.
Three design changes reduce your price by up to 30%. First, avoid internal sharp corners — add a 1 mm radius to all pockets. Second, keep wall thickness above 1.5 mm for any feature deeper than 10 mm. Third, standardize hole sizes to 3.2 mm, 4.2 mm, or 6.8 mm so we use stock tooling. If you can tolerate a 0.1 mm tolerance instead of 0.005 mm, we cut machining time by 20% because we run faster feeds and skip the finish pass. For a detailed breakdown of what drives cost, read our CNC machining tolerances guide — it maps tolerance class to machine capability and price impact.
No MOQ — we machine a single prototype bracket for you at the same quality level as a 10,000-piece production run.
Yes, we machine from your 3D model (STEP, IGES, or X_T) and can switch materials, add heat treatment, or change surface finish within 24 hours of your drawing review.
Every bracket — even a single piece — gets a CMM inspection report and a visual check under 10x magnification before packing.
Prototypes ship in 3–7 days via DHL Express; production orders of 500–1,000 pieces are ready in 15–20 days.
We are a precision manufacturing supplier made in China, operating out of a 6,500 m² factory in Dongguan with 32 CNC machines. We have supplied brackets to automotive, robotics, and semiconductor equipment makers since 2004. Send your drawing for a firm quote within 12 hours — email sc@bquq.com or WhatsApp +86 13713157787. Attach your STEP or PDF, and we will reply with a price, a DFM note, and an exact ship date.
| Parameter | Capability |
|---|---|
| Materials | AL6061/7075, SUS303/304/316, 45# steel, T2 copper, H59 brass, POM, PEEK, nylon |
| Tolerance | ±0.005mm standard, ±0.003mm on request |
| Machines | 3/4/5-axis CNC, turn-mill, Swiss lathe |
| Surface | Anodizing, nickel, zinc, passivation, sandblast, polish |
| Size Range | Max 400 x 300 x 200 mm |
| Prototype | 72 hours, no MOQ on samples |
| Inspection | Full report per batch, CMM data on request |
