Portable and Handheld Models: Portable concrete blasting machines that are easy to maneuver and suitable for small to medium-sized concrete surfaces start from around $1,000 to $3,000. These are often used for minor repair work or small construction projects. For example, a handheld concrete blasting gun might cost around $1,500.

Medium-Sized Machines: Medium-sized concrete blasting machines with moderate power and work capacity can range from $3,000 to $8,000. They are suitable for medium-sized concrete areas such as small parking lots or building facades. A typical medium-sized concrete blasting machine might cost around $5,000 to $6,000.

Large and Industrial-Scale Machines: Large, industrial-grade concrete blasting machines with high power, large work areas, and advanced features can cost $10,000 or more. These are used for large-scale construction projects, such as highways, bridges, or large industrial facilities. Some heavy-duty concrete blasting machines used in large construction projects can cost $20,000 or even higher.

It's important to note that these are just general price ranges, and the actual prices can vary depending on factors such as the specific brand, model, additional features, and market conditions. Additionally, prices may also be influenced by factors like shipping, installation, and after-sales service. When considering purchasing a blasting machine, it's advisable to research different models and brands, compare prices and features, and consult with industry experts or suppliers to get the best value for your specific requirements and budget.