How much does CNC machining cost?

Understanding Your CNC Machining Quotation

 

 

As a buyer of machined components, cost is often one of your top concerns. When it comes to asking “how much does CNC machining cost?”—it’s a bit like asking “how long is a piece of string?” The answer depends on several factors that influence the final price of your project.

One of the most significant factors is the quantity of parts you need. Typically, the more parts you order, the lower the cost per unit. However, this also means the total cost increases as well. But what exactly are you paying for when you contract a CNC machining company?

 

 

In this article, I’ll break down what a CNC machining quote should include so you can compare suppliers in the UK with confidence.

 

What Makes Up the Cost of CNC Machined Parts?

There are several key elements that determine the price of your CNC machined components.

Some CNC machining companies take a very casual approach to quoting. They might receive your RFQ, glance at it briefly, and then guess a number that sounds reasonable. This method makes me uncomfortable, and I’d worry that the company might ask for more money once the job starts.

A reputable CNC machining company, on the other hand, will take the time to fully understand your part, get material quotes, plan the machining process, and account for inspection requirements. This leads to a more accurate and reliable quotation.

So, what exactly goes into the cost of a CNC machined part? Let’s explore.

Raw Materials

The materials used in your part are usually sourced from trusted suppliers. Some companies have strong relationships with their suppliers and may even request multiple quotes to ensure they offer the best value for money.

Sometimes, a supplier might suggest a more cost-effective alternative if appropriate. However, they should always consult you before making such a recommendation.

 

 

Programming, Setup, and Machining Time

This shouldn’t be a quick guess. Many companies use experienced engineers to estimate the time required for programming, setup, and machining. These estimators can calculate the exact machining hours needed for your part.

Most CNC machining companies charge an hourly rate, which includes labor and machine operation costs. This rate typically forms a large portion of the quotation.

In the UK, rates can range from £30 to £100 per hour. Expedited orders often come with a premium price.

 

 

Complexity and Special Tooling

Some parts require non-standard tooling, which must be purchased specifically for the job. If this is the case, the cost of the tooling will be included in the quotation.

Inspection Requirements

Depending on the industry and application, inspection needs can vary widely. More complex inspections require more time and potentially specialized equipment.

First Article Inspection Reports (FAIRs) and additional certifications may add to the cost, as they require more time and resources.

A good supplier will work with you to understand your specific inspection needs and advise accordingly.

Finishing Processes and Assembly

You may need your parts to undergo finishing processes like anodizing or powder coating, or even assembly. It's worth checking if your supplier offers a one-stop service that includes these options.

Working with a single supplier can simplify your project and save time and effort. They can handle everything from machining to plating, coatings, and small assemblies like thread inserts or press-fit bearings.

 

 

Shipping and Packaging

While not always itemized on quotes, shipping and packaging costs are real and should be considered. At Penta, our packaging and delivery fee starts from £26 per delivery.

 

 

Comparing Quotes Effectively

It’s important to note that many CNC machining companies don’t break down the costs in detail. If something isn’t clear, ask questions. Understanding what each quote includes ensures you’re comparing apples to apples.

If a quote seems too good to be true, it probably is. A low quote might mean the company didn’t do a thorough job estimating, or it may exclude essential elements like proper inspection or tooling.

When working within a budget, you want to avoid unexpected costs later. Always seek a supplier who provides clear communication and a detailed, accurate quotation.

Conclusion

While I can't give you an exact figure on how much CNC machining costs, understanding a quotation can help you make informed decisions for your project. This guide should help you evaluate quotes from different suppliers with confidence.

Remember, the cheapest quote isn’t always the best. Look for a supplier who takes the time to understand your needs, provides accurate estimates, and communicates clearly throughout the process.

By prioritizing quality and communication alongside price, you'll ensure a smooth buying experience and avoid hidden costs in the future.

Next Steps

At this point, you might be looking for a CNC machining company that takes the quotation process seriously. One that calculates costs accurately, communicates effectively, and ensures you get the best value for money.

If you found us, you're in the right place! At Penta Precision, we have a dedicated team of estimators who will work closely with you to provide an accurate quote for your machined parts. In addition, we offer a Design for Manufacture service that helps improve the machinability of your component and reduce complexity to keep your costs under control.

If you'd like to discuss how Penta can assist with your next project, feel free to contact our friendly and experienced estimating team at 023 9266 8334 or email sales@penta.precision.

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