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What is the difference between a bridge – type and a gantry – type Coordinate Measuring Machine?

Hey there! As a supplier of Coordinate Measuring Machines (CMMs), I often get asked about the differences between bridge – type and gantry – type CMMs. So, I thought I’d write this blog to break it all down for you. Coordinate Measuring Machine

Let’s start with the bridge – type CMM. Picture this: it’s got a bridge – like structure that straddles the measuring table. This design is super popular in the industry, and for good reasons.

One of the big advantages of a bridge – type CMM is its compactness. It doesn’t take up a whole lot of floor space, which is great if you’re working in a smaller shop or a lab with limited room. You can easily tuck it into a corner and still have plenty of space for other equipment.

Accuracy is another strong suit of bridge – type CMMs. The bridge structure provides a stable base, which means the machine can make really precise measurements. Whether you’re measuring small parts or components with tight tolerances, a bridge – type CMM can handle it. It’s like having a super – accurate detective that can find even the tiniest flaws in your parts.

In terms of movement, the probe on a bridge – type CMM can move in three directions: X, Y, and Z. This allows it to measure all sorts of complex shapes and geometries. You can measure holes, slots, and even free – form surfaces with ease.

However, there are some limitations. The size of the measuring area on a bridge – type CMM is usually limited. If you need to measure really large parts, you might run into problems. Also, because of its structure, the access to the measuring area can be a bit restricted. You might have to be a bit creative when positioning your parts to get the best measurements.

Now, let’s talk about gantry – type CMMs. These are the big boys of the CMM world. A gantry – type CMM has a large, open – frame structure that looks a bit like a gantry crane.

The most obvious advantage of a gantry – type CMM is its large measuring capacity. You can measure huge parts, like automotive frames or large aerospace components, without any issues. If you’re in an industry that deals with big stuff, a gantry – type CMM is the way to go.

Accessibility is also a major plus. The open – frame design means you can easily load and unload parts from any side. There’s no need to worry about squeezing your parts into a tight space like you might with a bridge – type CMM.

Gantry – type CMMs are also great for high – volume production. They can handle a large number of parts quickly and efficiently. You can set them up to run automated measurement routines, which saves a lot of time and labor.

But, gantry – type CMMs aren’t without their drawbacks. They’re big and heavy, which means they need a lot of floor space. You’ll need a dedicated area in your facility to house one of these machines. They’re also more expensive to purchase and install compared to bridge – type CMMs.

Another thing to consider is the environment. Gantry – type CMMs are more sensitive to environmental factors like temperature and vibration. You’ll need to make sure your facility has proper climate control and vibration isolation to get accurate measurements.

When it comes to choosing between a bridge – type and a gantry – type CMM, it really depends on your specific needs. If you’re working with small to medium – sized parts and have limited space, a bridge – type CMM is probably the best choice. It’s accurate, compact, and relatively affordable.

On the other hand, if you’re dealing with large parts and high – volume production, a gantry – type CMM is the way to go. It can handle the size and volume requirements, but you’ll need to be prepared for the larger footprint and higher cost.

At our company, we offer a wide range of both bridge – type and gantry – type CMMs. We understand that every customer has different needs, and we’re here to help you find the right machine for your business. Whether you’re a small – scale manufacturer or a large – scale production facility, we’ve got the solution for you.

If you’re interested in learning more about our CMMs or want to discuss your specific requirements, don’t hesitate to get in touch. We’re always happy to have a chat and help you make the best decision for your business. Let’s work together to take your measurement capabilities to the next level!

Laser Processing Machine References:

  • "Coordinate Measuring Machines: Principles and Applications"
  • "Metrology Handbook: A Guide to Measurement Systems and Techniques"

Hermens Industrial Co., Ltd.
As one of the most professional coordinate measuring machine enterprises in China, we’re featured by quality products and low price. Please rest assured to buy cheap coordinate measuring machine in stock here and get quotation from our factory. We also accept customized orders.
Address: 9/59 Moo 14, Rachathewa , Bang Phli , Samut Prakan Province 10540
E-mail: liu_jincheng@hzhemen.com
WebSite: https://www.hermensindustrial.com/