Custom Aluminum Mounting Bracket CNC Machined
Custom CNC machined aluminum mounting brackets that position equipment accurately and carry load without flex, machined from solid with controlled hole patterns, mounting faces and folded or angled geometry.
- Accurate hole patterns and flat faces
- Material: 6061 / 6063 / 7075 Aluminum
- Process: 3-Axis / 4-Axis / 5-Axis CNC Milling
- Typical Tolerance: ±0.01–±0.05 mm
*Send your bracket drawing, load direction and mounting interface to get started.
Custom Aluminum Mounting Bracket Overview
A bracket is a positioning part as much as a structural one: hole position and face flatness decide whether the assembly lines up.
A custom aluminum mounting bracket connects equipment to a frame, wall, machine bed or enclosure. It may be a simple flat plate with a hole pattern, an L-shaped support, or a machined block with pockets that locate a component in two directions.
The features that matter are the mounting faces, the hole patterns on each face, and the relationship between them. If the holes are correct but the faces are not square, the equipment is installed with preload and the assembly distorts. Ribs and pockets are used to add stiffness where the bracket spans a gap.
SINORISE machines aluminum mounting brackets from drawings and 3D models for automation equipment, test systems and enclosure assembly, in prototype and repeat batch quantities.
6061 Aluminum
6061-T6 is the standard material for machined mounting brackets because it combines stiffness, machinability and good anodizing behaviour.
6063 is used where a softer finish or extruded profile is preferred.
7075 Aluminum
7075 is chosen for brackets that carry higher loads, span longer distances or must stay rigid with thin sections.
The section and rib layout usually matters more than the alloy for stiffness, so both are reviewed together.
Material and finish should be selected together with the drawing requirements. Send us your part for a recommendation.
Custom Aluminum Mounting Bracket Specifications
Key machining data for this part, with tolerances, finishes and inspection agreed to the drawing.
| Specification | Machining Data | Specification | Machining Data |
|---|---|---|---|
| Product | Custom Aluminum Mounting Bracket | Hole Machining | Drilling, Reaming, Tapping, Counterboring |
| Material | 6061 / 6063 / 7075 Aluminum | Thread Options | Metric / Imperial Threads, Thread Inserts |
| Machining Process | CNC Milling, 3/4/5-Axis Machining | Surface Finish | Anodizing, Powder Coating, Bead Blasting, Passivation, As Machined |
| Typical Tolerance | ±0.01–±0.05 mm | Inspection | CMM, Height Gauge, Squareness Check |
| Surface Roughness | Ra 0.8–3.2 μm | Production | Prototype, Small Batch, Medium Batch |
| Machined Features | Mounting Faces, Hole Patterns, Ribs, Pockets, Slots, Cable Openings | Drawing Format | STEP, STP, IGES, DWG, DXF, PDF |
| Datum Flatness | 0.02–0.05 mm per 300 mm | Lead Time | 3–7 Days (Prototype), 7–15 Days (Batch) |
| Customization | Material, Dimensions, Tolerance, Finish, Hole Layout | Surface Roughness Range | Ra 0.4–6.3 μm on Request |
Key Features of Our CNC Machined Mounting Brackets
Brackets are machined so holes, faces and ribs work together instead of fighting each other at assembly.
Hole Pattern Accuracy
Holes on each face are machined relative to the datum faces, so the bracket locates the component without slotting or reaming at assembly.
Square and Parallel Faces
Mounting faces are machined square to each other, preventing the preload that appears when a bracket is bolted to two surfaces.
Rib and Pocket Stiffness
Ribs and pockets are added where the bracket spans a gap, increasing stiffness with less added weight than a thicker section.
Custom Fit to Assembly
Clearance for fasteners, cable routing and tool access is machined into the bracket rather than resolved during installation.
Need a Custom Aluminum Mounting Bracket for Your Project?
Surface Finishes for Aluminum Mounting Brackets
Finish selection depends on whether the bracket is visible, handled, or exposed to moisture and cleaning.
| Finish | Main Purpose | Finish | Main Purpose |
|---|---|---|---|
| Anodizing | Corrosion protection and colour identification | Powder Coating | Durable coating for visible or handled brackets |
| Bead Blasting | Uniform matte texture before anodizing | Passivation | Removes machining residue before assembly |
| Hard Anodizing | Wear resistance at clamped faces | As Machined | Natural machined surface for hidden brackets |
*Threaded holes and grounding points are masked before coating so that thread fit and electrical contact are preserved.
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CNC Machining Process for Aluminum Mounting Brackets
Brackets are machined from datum faces outward, so every hole and rib references the same geometry.
01. Interface Review
Confirm the mounting interfaces, load direction, fastener sizes and access requirements.
02. Blank Preparation
Cut aluminum stock with allowance for facing, profiling and clamping.
03. Datum and Face Machining
Machine the primary datum faces first, then the faces that must be square or parallel to them.
04. Holes, Slots and Pockets
Drill, tap and mill hole patterns and pockets relative to the datums, then deburr all edges.
05. Inspection and Finishing
Check hole position, squareness and face flatness, then apply the selected finish.
Have a bracket to manufacture? Send the drawing, load direction and quantity to receive a machining quote.
Custom Aluminum Mounting Bracket CNC Machining FAQs
Yes. A machined bracket can replace several welded or bolted parts, which usually improves hole position accuracy and removes distortion from welding. The design is reviewed for stiffness before machining.
Hole positions are typically held within ±0.01–0.05 mm relative to the datum faces, depending on size and feature. The required value should come from the assembly interface.
Ribs and pockets can be added in non-critical areas to increase stiffness without adding much weight. Remaining wall thickness and tool access are checked before production.
Yes. Single parts and small batches are common for prototypes, fixtures and equipment builds.
Anodizing or powder coating are both used outdoors, with the choice depending on appearance, handling and exposure. Masking is agreed for threads and grounding points.
A drawing or model, material, finish, quantity and the mounting interface or load requirement are enough to review the part.
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