DureX Inc. is an ISO 9001:2015 certified contract manufacturer in Union, New Jersey, providing CNC machining for Union County NJ manufacturers and regional customers. When a production schedule depends on a critical machined part, distance and extra handoffs add risk that a local partner can reduce. Our team supports custom components from the first RFQ review through machining, inspection, finishing, assembly, and shipment. This page explains how we work with engineers and buyers across Union County and the surrounding North and Central New Jersey region.
Working with a machine shop in your own region makes drawing revisions, quote questions, and delivery planning easier to manage. Engineers can talk directly with our team about manufacturability, and facility reviews can be arranged by appointment.
Here is what local manufacturers can expect when they work with DureX:
- Direct communication with our team during quoting and drawing review
- Custom parts, prototypes, short runs, and production programs
- In-house finishing and assembly that reduce supplier handoffs
- Regional delivery coordination from one Union, NJ facility
Our CNC machining services cover milling, turning, grinding, and secondary operations, with details on each process in the sections below. For milling-specific projects, see our CNC milling services page.
Quality is built into every project through our certified quality management system, which follows the ISO 9001 standard. You can learn more about our inspection practices on our Quality Assurance page.
CNC Machining Capabilities
DureX provides CNC machining for custom parts that need consistent dimensions, clean finishes, and repeatable results from one run to the next. Our team works from your drawings or CAD files to machine components for OEMs, contract manufacturers, and product development teams. Because machining sits alongside fabrication, finishing, and assembly at our Union, NJ facility, parts can move through several steps without leaving the building. This section outlines the core processes behind our CNC machining for Union County NJ projects and the kinds of parts each one suits best.
CNC Milling
CNC milling uses rotating cutting tools to remove material from a workpiece, which makes it a strong fit for brackets, housings, plates, and parts with pockets, slots, or complex surfaces. Our CNC vertical machining capability supports both prototype quantities and repeat production orders.
If your project is mainly milled components, visit our dedicated CNC milling services page for more detail.
CNC Turning
CNC turning rotates the workpiece while a cutting tool shapes it, which suits round or cylindrical parts such as shafts, bushings, spacers, and fittings. This process is often paired with milling when a part needs both turned features and machined details.
Grinding and Secondary Operations
Grinding is used when a part needs a tighter surface finish or closer dimensional control than standard machining alone provides. Secondary operations such as deburring, tapping, and hardware insertion prepare machined parts for finishing or assembly.
Part Types We Commonly Machine
Our machining work supports a range of component styles, depending on material and geometry:
- Brackets, plates, and mounting components
- Enclosure and housing parts
- Shafts, spacers, and bushings
- Prototype parts for fit and function testing
- Repeat production components with secondary operations
If you want a general explanation of how computer-controlled machining works, the numerical control overview on Wikipedia is a helpful starting point.
Machined parts can continue directly into our finishing services or our assembly services without being sent to another supplier. For projects that combine machined parts with formed or fabricated components, our sheet metal fabrication team can support the full build.
From RFQ Review to Finished Parts
DureX manages CNC projects from the first quote request through shipment, so your team does not have to coordinate several suppliers for one part. Each project begins with a review of your drawings, material requirements, quantities, and delivery needs. From there, the work moves through programming, machining, secondary operations, inspection, finishing, and assembly as the project requires. This section walks through each stage so you know what to expect after you submit an RFQ.
Step 1: RFQ and Print Review
Our team reviews your submitted drawings or CAD files, along with the material, quantity, tolerance, and finish information you provide. If something in the print needs clarification, we reach out before quoting so the estimate reflects what your part actually requires.
You can send RFQ details through our contact page, and files in PDF, DXF, STEP, or IGES format are accepted.
Step 2: Manufacturability Feedback
During quoting, our team can discuss manufacturability considerations that may affect cost, lead time, or part performance. Early conversations about features such as wall thickness, internal corners, and tolerance callouts often help avoid revisions later in production.
For a general overview of this practice, see this explanation of design for manufacturability. Projects that need more design support can also draw on our product engineering resources.
Step 3: Programming and Machining
Once a project is approved, the part is programmed and set up on our CNC equipment. Prototype quantities and production runs follow the same planning process, with details adjusted to the project.
Step 4: Secondary Operations and Inspection
After machining, parts may go through deburring, tapping, hardware insertion, or other secondary operations. Inspection checks confirm that parts meet the requirements on your drawing before they move to the next stage. You can read more about our quality practices on our Quality Assurance page.
Step 5: Finishing, Assembly, and Shipping
Machined parts can continue into finishing and assembly within the same facility, which cuts down on outside handoffs. Completed orders are then prepared for delivery through our shipping department.
The result is a single accountable manufacturing partner for the whole workflow. That structure gives procurement and engineering teams one point of contact from quote to delivery.
Materials We Machine
DureX machines a wide range of metals and engineered plastics for custom parts. Choosing the right material affects strength, weight, corrosion resistance, and how a part performs in its final application. Our team can review your specification during quoting and help you confirm that the material fits the part’s function and budget. The table below lists the materials and grades we machine, along with the kinds of parts they are commonly used for.
| Material | Grades | Common Uses |
| Aluminum | 6061, 7075, 2024 | Lightweight brackets, enclosures, and structural components |
| Stainless Steel | 303, 304, 316 | Parts that need corrosion resistance and a durable surface |
| Carbon Steel / Tool Steel | A2, D2, 4140 | Tooling, fixtures, and parts that face heavy wear or load |
| Titanium | Grade 2, Grade 5 (Ti-6Al-4V) | Components that need a high strength-to-weight ratio |
| Copper / Brass | C110, C360 | Electrical components, fittings, and conductive parts |
| Engineered Plastics | Delrin, PEEK, Nylon | Insulating, lightweight, or chemical-resistant parts |
Each material machines differently, which is why grade selection matters as much as the material family. A general reference on machinability explains how factors like hardness and heat affect cutting performance.
If your drawing calls for a material that is not listed, submit the specification for review through our contact page. Our team will let you know whether we can machine it during the quoting process.
Material choice also connects to the steps that follow machining. Metal parts can move into our finishing services, and parts that need to be combined with other components can continue into assembly. For parts that start as flat stock instead of machined blanks, our sheet metal fabrication team can help.
Quality and Inspection
DureX is ISO 9001:2015 certified, which means our quality management system is documented, audited, and applied to the work we do. For buyers and engineers, this gives a clear framework for how parts are reviewed, machined, checked, and approved before they ship. Quality control is involved from the early stages of a project and not only at final inspection. This section explains the inspection steps and tools that support machined parts for Union County and regional customers.
Our Inspection Process
Each CNC project follows a structured process designed to catch issues early and keep production consistent. The main steps include:
- First article inspection reporting on new jobs, subject to project requirements
- First piece inspection before production continues
- Early identification of critical dimensions, with tool-controlled processes where possible
- Custom gauges and fixtures to monitor consistency during production
- In-process checks throughout the run
Reviewing the first part before a full run begins helps confirm that the setup matches the drawing. This approach reduces the risk of repeating an error across an entire order.
Inspection Equipment
Our quality control department uses coordinate measuring machines (CMM) and optical inspection systems to verify part dimensions. A coordinate-measuring machine measures the geometry of a part by recording precise points on its surface, which allows inspectors to compare results against the drawing.
The tolerances we can hold depend on the material, the part geometry, and the application. We review your tolerance requirements during quoting so you know what to expect before production begins.
Certification and Documentation
You can view our current ISO 9001:2015 certificate directly on our site: DureX ISO 9001:2015 certification (PDF). The standard itself is maintained by the International Organization for Standardization.
If your project requires specific inspection reports or documentation, include those requirements with your RFQ. Our team will confirm what we can provide for your part.
To learn more about how quality fits into our overall manufacturing process, visit our Quality Assurance page. Machined parts that pass inspection can continue into finishing or assembly without leaving our facility.
Why Choose a Union County CNC Partner
Choosing a CNC machining partner close to your operation can make day-to-day project work simpler. DureX is based at 5 Stahuber Ave. in Union, NJ, which puts our team within easy reach of manufacturers across Union County and the surrounding region. Local access makes it easier to talk through drawing questions, plan deliveries, and arrange a facility visit when a project calls for one. This section explains the practical advantages of working with a Union-based machining partner.
One Accountable Manufacturing Partner
DureX combines CNC machining with sheet metal fabrication, metal stamping, finishing, and assembly in a 120,000-square-foot facility. Keeping these steps under one roof reduces the number of suppliers your team has to manage.
When something needs attention, you work with one team instead of tracing a problem between vendors. You can explore the full range of work on our homepage or review our metal stamping capabilities for projects that combine processes.
Direct Communication with Engineering and Procurement
Our team reviews your drawings and RFQ details before quoting, so questions about materials, tolerances, or finishes can be settled early. Engineers and buyers can discuss manufacturability considerations directly, which helps avoid revisions later in the project.
You can reach us by phone at (908) 688-0800 or through our contact page.
Support from Prototype to Production
A project does not need to change suppliers as it grows. We support prototype quantities, short runs, and production programs, subject to project requirements.
This continuity helps teams carry a design from early testing into repeat orders with the same manufacturing partner.
Local Accessibility and Experience
DureX has operated in Union, NJ since 1946, and our team has worked with regional manufacturers for decades. Facility reviews and engineering discussions can be arranged by appointment, which gives new customers a direct look at how we work.
We also take part in the regional manufacturing community, and our site highlights the Made in New Jersey program from NJMEP. To see how our local capabilities fit together, visit our CNC machining services page.
Request a Quote: CNC Machining for Union County NJ
Getting a quote from DureX starts with sending us the details of your part. You can submit a drawing or CAD file, along with the material, quantity, and any critical requirements, through our contact page or by phone. Our team reviews each submission, asks for clarification if something is unclear, and prepares a quote based on what your part requires. The more complete your RFQ is, the easier it is for us to review your project accurately.
What to Send with Your RFQ
The table below shows the information that helps us quote your CNC machined parts.
| RFQ Item | What to Include |
| Drawing or CAD file | PDF, DXF, STEP, or IGES files |
| Material | Alloy and grade, or the application so we can discuss options |
| Quantity | Prototype, short run, or production volume |
| Tolerances | Critical dimensions and any tight-tolerance features |
| Finish | Required surface finish, coating, or plating |
| Documentation | Inspection reports or other paperwork you need |
| Target date | Your desired delivery date |
A STEP file is a neutral 3D format that most CAD programs can export, which makes it a reliable choice for sharing part geometry. If you are unsure which file to send, include a PDF drawing with the model so our team has both the geometry and the notes.
How to Reach Us
Choose the option that works best for your team:
- Request a quote online: Use our contact page to send your files and project details
- Call: (908) 688-0800
- Email: info@durexinc.com
- Visit: DureX Inc., 5 Stahuber Ave., Union, NJ 07083
If you would like to review your project in person, you can ask about arranging a facility visit or engineering review by appointment. We are happy to talk through your requirements before you submit a formal RFQ.
Once your quote is approved, your parts can move from machining into finishing and assembly without changing suppliers. Learn more about the full process on our CNC machining services page.
Visit or Contact DureX in Union, NJ
DureX Inc. is a contract manufacturer based in Union, New Jersey, serving Union County and the surrounding North and Central New Jersey region. Our 120,000-square-foot facility brings CNC machining, fabrication, finishing, and assembly together in one location.If you are comparing options for CNC machining for Union County NJ, the next step is simple: send us your drawing or call our team to talk through your project. We are happy to review your requirements and answer questions before you submit a formal RFQ.
DureX Inc.
5 Stahuber Ave.
Union, NJ 07083
Phone: (908) 688-0800
Email: info@durexinc.com
Facility visits and engineering reviews can be arranged by appointment. Call or email ahead so we can schedule time with the right members of our team.
Ready to Get Started?
Submit your drawing or CAD file through our contact page, or call (908) 688-0800 to speak with our team. We accept PDF, DXF, STEP, and IGES files, and we will review your part details before preparing your quote.
Not sure where to begin? Learn more about our CNC machining services, explore our CNC milling services, or return to the DureX homepage.
CNC machining for Union County NJ manufacturers, with precision machined components, local engineering support, and one-source production from prototype parts through repeat production runs.
Request a CNC Machining Quote | Call (908) 688-0800