About Us

Company profile

Nanjing Byfo Machinery Co., Ltd, is located in Nanjing City, Jiangsu Province, China, established in 2016.
BYFO company has always been focused on manufacturing and designing all kinds of HVAC equipment, including full automatic HVAC duct auto line, TDF flange former, round duct making machines, elbow duct machines, Pittsburgh lock former, shearing devices, bending machines, plasma cutting machines, etc.
Company Equipment includes CNC machining centers, large gantry milling machines, grinding machines, spiral duct forming machines, Pittsburgh lock forming machines, auto duct line machines, auto duct line 3, and other related equipment. Our integrity manufacturing company involves manufacturing, design, and after-sales.

Elbow Machine Deliver To Thailand


High Precision

Positioning Accuracy ± 2.02mm



Notch Roughness〈 Ra6.5


High Speed

Idling Speed 〉120m/min


Low Consumption

Conversion Rate 〉40%

Certificate of Merit

Nanjing Byfo Machinery Co., Ltd was founded in 2016 and is located in Nanjing City, Jiangsu province, China. As an integrity manufacturing company, our focus has been on designing and manufacturing a range of HVAC equipment, such as full automatic HVAC duct auto line, TDF flange former, pittsburgh lockformer, shearing machine, bending machine, and plasma cutting machine. Our company is equipped with various types of equipment, including CNC machining centers, large gantry milling machines, grinding machines, and related equipment. We also offer sales and well after-sales services to our clients.


Frequently Asked Questions

Our spiral duct machines adopt advanced technology. Moreover, we carry out strict supervision during productionand make sure every finished product with high quality.

For service, we will provide you technical guide after you receiving machines, you can have video talk with our engineer, also there can be a group talking with engineers to help you directly if you have any problems.

For quality, we assure you two years warranty, if any parts broken during this period, we will send you by air for free. We send spare parts also along with machine before delivery, machines will be run and tested for at least two days before sending to you.

Generally, it will be about 20-35 days days after receiving your advance payment, which also will be on basis of your order.

We support T/T and L/C payment. Usually 30% T/T before delivery, the rest 70% T/T payment before delivery.

Standing S Lock Machine

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Customer Testimonials

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1.I’m never really worried about the booth not arriving on time because I can easily reach out to them and get my questions answered in an instant. The ease of communication with them is remarkable, and I’m always able to talk to someone who can handle everything.


2. I know they are going to be honest with me. I am not going to get a subpar product.