What is your minimum order quantity for custom parts?

We support single-piece prototypes and low-volume runs through CNC machining, 3D printing and urethane casting, and scale to mass production through die casting, injection molding and stamping. Share your target quantity and our engineers will recommend the most cost-effective process.

What tolerances can Sunmy Hardware hold?

Standard CNC tolerances are ±0.01 mm, and critical features can be held down to ±0.005 mm. Dimensions are verified with CMM inspection and documented in FAI reports before shipment.

How do you protect my drawings and intellectual property?

We sign a Non-Disclosure Agreement with you by email before collecting any 3D or CAD files. You work directly with the factory, so your data is never handed off to brokers.

Which quality documents are available with shipments?

Material certificates, RoHS compliance documents, First Article Inspection (FAI) reports and CMM dimensional reports can be supplied per project.

Which manufacturing processes are done in-house?

CNC machining and stamping are performed in our own facilities. Casting and surface finishing are completed by audited partners. All final quality control, CMM inspection and FAI are executed in-house by Sunmy engineers before global shipping.

Which CAD file formats do you accept?

We accept STEP, IGES, STL, DWG/DXF and PDF 2D drawings. Physical samples can also be reverse-engineered.

OEM Custom Precision CNC Machined Brass Cooling Block Manufacturer Supplier Wholesale Exporters Factory Price Quotes

Product Overview

Shenzhen Sunmy Hardware Co., Ltd. specializes in the contract manufacturing of high-precision, fully customized brass cooling blocks. Engineered for optimal thermal efficiency and fluid regulation, this robust component features integrated hexagonal cooling fins, high-tolerance external and internal threads, and cross-drilled distribution ports. It serves as an ideal solution for pneumatic systems, liquid cooling loops, automotive engineering, and industrial machinery where heat dissipation and fluid transport are critical.

Manufacturing & Process Insights

At Shenzhen Sunmy Hardware, we leverage state-of-the-art multi-axis CNC Turning and Milling Centers to manufacture this intricate brass block from premium raw bars:

Precision CNC Turning

Ensures the perfect concentricity of the central fluid channel and the external mounting threads.

Advanced CNC Milling

The hexagonal profile and deep-groove cooling fins are milled with precision to maximize surface area for heat dissipation.

Cross-Drilling & Tapping

Multiple fluid distribution ports are cross-drilled with precise angular orientation, followed by meticulous deburring to ensure smooth, turbulent-free fluid flow.

Key Technical Specifications

Parameter	Technical Specification
Product Name	Custom Precision CNC Machined Brass Cooling Block
Material Options	Premium Brass (C36000, H59, H62, HPb59-1), Bronze, Copper, Aluminum, Stainless Steel
Manufacturing Process	CNC Turning, 4-Axis CNC Milling, Drilling, Thread Tapping, Micro-Machining
Dimensional Tolerance	Up to ±0.01 mm (Fully customizable based on customer blueprints)
Thread Standards	Metric, NPT, G, BSPP, UNC/UNF (Fully customized to specification)
Surface Treatment	As-Machined, Degreasing, Electroplating (Nickel, Chrome, Tin), Passivation
Minimum Order Quantity (MOQ)	1 Piece (Supporting rapid prototyping through to full-scale mass production)
Application Fields	Thermal Management, Fluid Control, Automotive Systems, Heat Exchangers, Industrial Automation

Key Features & Benefits

Superior Thermal Conductivity

Manufactured from premium copper alloys, providing excellent heat transfer rates for high-performance cooling setups.

100% Fully Tailored Customization

We eliminate standard catalog constraints. Every dimension, thread pitch, fin count, and hole arrangement can be modified precisely according to your CAD drawings (STEP, IGES, SolidWorks) or physical samples.

Flawless Threading & Fluid Channels

High-precision thread tapping guarantees leak-proof connections when paired with adapters or sensors, while smooth internal walls minimize pressure drops.

One-Stop OEM/ODM Service

From rapid prototyping (MOQ: 1 pc) to large-scale contract manufacturing, Sunmy Hardware provides seamless engineering support, ensuring rapid turnaround and consistent B2B supply chain reliability.

Technical FAQ

Q1: Can you manufacture this part exactly according to our 3D CAD models?

A: Yes, absolutely. We are a 100% custom manufacturer. We accept 3D files in STEP, STP, IGS, DWG, DXF, and SolidWorks formats, ensuring absolute fidelity to your original design.

Q2: What quality control protocols do you implement for international orders?

A: Every production batch undergoes strict quality assurance. We utilize advanced Coordinate Measuring Machines (CMM), optical projectors, thread gauges, and micrometers. A full dimension inspection report and material certificate can be provided prior to shipment.

Q3: What is your standard lead time for prototypes and mass production?

A: For prototyping (1-10 pcs), our typical lead time is 5-7 working days. For bulk production, it ranges from 15 to 25 days depending on the design complexity and order volume.

Q4: What material options are available for custom cooling blocks?

A: We process Premium Brass (C36000, H59, H62, HPb59-1), Bronze, Copper, Aluminum, and Stainless Steel depending on your thermal and corrosion requirements.

Q5: What dimensional tolerances and thread standards can you achieve?

A: We achieve dimensional tolerances up to ±0.01 mm. Supported thread standards include Metric, NPT, G, BSPP, and UNC/UNF, all fully customized to your specification.

Q6: What is the Minimum Order Quantity (MOQ)?

A: Our MOQ is 1 piece, offering flexible support from initial rapid prototyping to full-scale contract mass production.

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