What tolerances can Sunmy Hardware hold on CNC machined parts?

Critical CNC-milled and turned features can be held to ±0.005 mm, with ±0.01 mm achievable as a standard on precision features. Final achievable tolerance depends on material, feature size and geometry, and is confirmed during the engineering (DFM) review before production.

Which manufacturing processes are performed in-house?

CNC machining and metal stamping are performed in Sunmy-owned facilities. Casting and surface finishing are produced by audited partner plants. All final quality control, CMM dimensional inspection and First Article Inspection reports are executed in-house by Sunmy engineers before shipment.

How is my CAD data and intellectual property protected?

Sunmy signs a Non-Disclosure Agreement with your team by email before any 3D or CAD files are collected, and you communicate directly with the factory, so drawings are not handed off through trading intermediaries.

What quality documents are supplied with shipments?

Material certificates, First Article Inspection (FAI) reports and CMM dimensional reports are available, together with RoHS compliance documentation where required.

Do you support prototypes and low-volume production?

Yes. Sunmy supports rapid prototyping and low-volume manufacturing through CNC machining, 3D printing and urethane casting, then scales the same part into die casting, stamping or injection molding for volume production.

How fast do your engineers respond to a new project?

Engineers respond to drawings and project requirements within 24 hours, including initial manufacturability feedback.

Custom CNC Machined Aluminum Hinge Assembly Grey Anodized Precision OEM ODM Parts Manufacturer Wholesale Supplier

Product Overview

This made-to-order aluminum hinge assembly is a reference design for machine guards, access panels, industrial enclosures and automation equipment. The photographed components feature a grooved mounting base with twin pivot lugs and a mating leaf with round mounting holes and an obround adjustment slot. Final geometry and performance are engineered around the customer’s application—not a fixed catalog specification.

Sunmy manufactures hinge components to customer 2D drawings, 3D models or physical samples. We can customize hole spacing, mounting profiles, pivot-pin interfaces, opening clearance and finishes, then supply individual components or assembled hinge sets. Load capacity, cycle life and environmental suitability must be validated for the intended installation.

Manufacturing Approach

The manufacturing route is selected after reviewing your drawing, order quantity and functional requirements. Rather than prescribing a process upfront, we balance machining access, mating-part accuracy, tooling investment and repeatability from prototype to production:

Stock Machining or Aluminum Extrusion: For prototypes and low-volume runs, machining from aluminum stock can avoid custom extrusion tooling. Repeated cross-sections and higher volumes may justify an extruded profile followed by CNC finishing, subject to cost and tolerance review.

Precision CNC Milling and Drilling: CNC operations produce the locating grooves, mounting faces, pivot-lug geometry, cross-holes and adjustment slot. Critical bore positions, datum relationships, clearances and surface finishes are specified on the approved drawing and checked accordingly.

Pivot Holes and Special Features: Boring, reaming, slot milling and controlled deburring are considered first. Wire EDM or another specialist process can be evaluated for unusual internal profiles or restricted tool access; it is not automatically required for this hinge design.

Grey Anodizing and Finish Control: Matte grey anodizing, bead blasting and alternative coatings can be specified to match appearance and service conditions. We review alloy compatibility, cosmetic areas and coating-related fit changes before production; corrosion or wear test criteria are agreed separately when needed.

Pin Manufacture and Assembly: Custom turned pivot pins, bushings, washers and fasteners can be sourced alongside the machined hinge parts. On request, Sunmy coordinates fitting, sub-assembly, functional checks and protective packaging, reducing the number of separate parts your team must manage.

Key Technical Specifications

Specification Parameter	Technical Details & Customization Options
Product Name	Custom CNC Machined Aluminum Hinge Assembly \| Grey Anodized Finish
Material Options	Aluminum 6061, 6063, 6082 or alternative grades to approved drawings; pin/bushing materials selected separately.
Material Condition	T5/T6 or other specified temper, subject to alloy and stock availability.
Production Processes	CNC milling, drilling and precision finishing; turning for pins; optional extrusion or EDM when justified by design and volume.
Secondary Operations	Reaming, tapping, slotting, deburring, blasting, anodizing, assembly and packaging as specified.
Hinge Configuration	Two mating hinge elements: grooved base with pivot lugs and slotted mounting leaf; interfaces and pin arrangement are customizable.
Dimensional Tolerances	Per customer 2D drawing and agreed inspection plan. Critical pivot-bore alignment, pin clearance and mounting datums reviewed during DFM.
Surface Finish	Matte grey anodizing available; exact shade, texture and coating thickness subject to the approved specification or sample.
Alternative Finishes	Natural/black/color anodizing, hardcoat where suitable, bead blasting, brushing and coatings upon engineering review.
Dimensions & Hole Pattern	Fully made to order: length, section, hole pitch, slot position, pivot location and overall clearances per approved CAD.
Tooling & Fixtures	Custom machining fixtures, gauges and extrusion dies arranged when warranted by the process and production volume.
Quality Documentation	Drawing-based inspection; FAI, material certificates, traceability and coating reports available according to agreed project requirements.
Typical Applications	Machine guarding, industrial cabinets, automation covers, equipment access doors and custom mechanical enclosures.
Supply Scope	Individual hinge parts, matched pin/bushing kits or fitted sub-assemblies; OEM marking and packaging on request.

Key Features & Advantages

Controlled Pivot Interface

Pin diameters, mating bores and axial clearances are defined for the actual load and operating conditions. Our DFM review flags difficult-to-machine features and supports more repeatable assembly.

Practical Installation Adjustment

The illustrated leaf combines round mounting holes with a slotted opening, allowing alignment adjustment during fitting. Hole patterns and slot travel can be changed to match your equipment.

Material and Finish Flexibility

Choose aluminum grade, temper, surface appearance and pin material based on weight, environment and expected service. We review finish build-up at functional contact surfaces before release.

Prototype Before Production Tooling

Initial samples can be machined from stock for fit and function checks. For repeat orders, our team can assess extrusion or other process changes that may improve unit economics.

Parts or Complete Assemblies

One project contact can coordinate CNC hinge components, turned pins, purchased hardware, finishing and assembly. Inspection and delivery scope are agreed against your production requirements.

Technical Frequently Asked Questions (FAQ)

Q1: Can Sunmy manufacture a different hinge from our drawings or sample?

A: Yes. We work to customer specifications rather than offering this design as a fixed-size stock item. Send 2D/PDF drawings, a STEP model or a sample, plus the required quantity and application. We can review manufacturing feasibility and propose suitable materials, processes and assembly options. NDA arrangements are available.

Q2: Does this hinge require extrusion and Wire EDM?

A: Not necessarily. Simple or low-volume parts may be CNC-machined from stock. Extrusion can be considered for recurring sections and larger quantities. Wire EDM is only an option where the feature geometry or access makes conventional machining unsuitable. The final route is confirmed during DFM.

Q3: How are pivot fit and finished-part quality verified?

A: We identify the critical dimensions with your engineering team, including bore location, pin fit, mounting datums and relevant coating allowances. First-article, in-process and outgoing inspections can be defined to match the drawing and acceptance plan. Reports and traceability documents are supplied as agreed.

Q4: Can we order prototype quantities and have the hinges assembled?

A: Yes. Sampling quantities are flexible, including small engineering batches. Depending on the design, we can deliver the machined leaf and base separately or source pins, bushings and fasteners for fitted assemblies. The assembly method and functional checks are defined with you.

Q5: What information is needed for pricing and lead time?

A: Please share the drawing or 3D model, material and finish requirements, sample quantity, expected production volume and any load, cycle or environmental criteria. We will review tooling, mating-part fit, inspection and optional assembly, then provide a project-specific quotation and schedule. Prototype and production lead times depend on complexity and finishing scope.

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High-Quality Custom CNC Machined Aluminum Hinge Assembly | Grey Anodized Finish Supplier, Quotes

Product Description

Product Overview

Manufacturing Approach

Key Technical Specifications