Semi Automatic Block Production Line Selection Guide: QT3-20, QT4-25 and QT4-26

The 3 mainstream semi-automatic block making machines on the market, the QT3-20, QT4-25, and QT4-26, are not inherently better or worse than one another. The right choice depends on your daily brick output, available startup capital, local labor costs, and the type of bricks you plan to produce. Here, Furein Block will provide a comprehensive comparison of the three models’ suitability for different scenarios, production capacity, and investment requirements to help you set up a semi-automatic block production line correctly.

Semi Automatic Block Production Line Selection Guide

Which Semi Automatic Block Making Machine Is Right for You?

The QT4-25 block machine offers the best value for money and is our best-selling brick-making machine. The QT4-26 block machine has a slower molding cycle than the QT4-25. The QT3-20 block machine is the smallest machine capable of producing colored bricks. If you want to produce colored bricks or anticipate needing to do so in the future, choose the QT3-20.
Here is a comparison table of the key specifications for the QT3-20, QT4-25, and QT4-26. You can select the model that best suits your needs based on production capacity and brick type.

Model QT3-20 QT4-25 QT4-26
Oversize 5990*4260*2620mm 5600*2240*2400mm 2150*1660*2550mm
Hydraulic System Pressure 16MPa Equipped with hydraulic cushioning /
Vibrating Form Vibration and pressure Platform vibration Platform vibration
Vibration Frequency 4500r/min 3500r/min 4200r/min
Pallet Size 680*550mm 850*550mm 850*450mm
Molding Cycle Time 20s 25s 26s
Vibrating Force 55 kn 50 kn 45 kn
Power 20.75 kw 20.6 kw 11.6 kw
Color Brick (8H) 14400 pcs per day Cannot produce colored bricks Cannot produce colored bricks
Paver Brick (8H) 11520 pcs per day 26000 pcs per day 19200 pcs per day
Solid Brick (8H) 14400pcs per day 25200 pcs per day 19200 pcs per day
Hollow Block (8H) 4320 pcs per day 5700 pcs per day 4400 pcs per day
Automation Semi-automatic Semi-automatic Semi-automatic
Required Workers 3-4 workers 3-4 workers 3-4 workers
Target Customers For color brick production For new brick factory For low investment
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3 Semi Automatic Block Production Line Details: QT3-20, QT4-25 and QT4-26

Choosing a semi automatic block production line is not simply about comparing machine prices. The right choice depends on what you want to produce, your daily production target, available factory space, labor cost and future plans.

FAQs About Semi Automatic Block Production Line Selection

How do I choose between QT3-20, QT4-25 and QT4-26?

The choice of a semi-automatic block-making machine depends mainly on your product requirements and budget. The QT3-20 is specifically designed for producing colored bricks; the QT4-25 is suitable for beginners just starting a factory, offering a good balance of output and practicality; and the QT4-26 is intended for customers with the tightest budgets who want to get started on a budget. The choice of semi automatic block production line depends on what type of bricks you primarily want to sell and how much capital you have available.

The QT3-20 block maker is the top choice for producing colored bricks, it is specifically designed for colored brick production and can produce 14,400 colored bricks per day during an 8-hour shift. With a vibration frequency of up to 4,500 revolutions per minute and an excitation force of 55 kilonewtons, it produces colored bricks with excellent surface quality and density. The QT4-25 and QT4-26 models cannot produce colored bricks.

The QT4-25 block making machine is ideal for small brick factories. It is specifically designed for newly established brick factories. With its moderate size and a power rating of 20.6 kW, it can produce 5,700 hollow bricks or 25,200 solid bricks per day (based on an 8-hour operating day). It offers stable output and is easy to operate, making it perfect for small-scale production operations just getting started.

The main differences between the QT4-25 and QT4-26 block making machine lie in their configurations, power consumption, and production capacity. The QT4-25 features hydraulic cushioning, has a power rating of 20.6 kW, an excitation force of 50 kN, and a daily hollow brick output of 5,700 bricks; whereas the QT4-26 lacks hydraulic cushioning, has a power rating of only 11.6 kW, an excitation force of 45 kN, and a daily hollow brick output of 4,400 bricks. The QT4-26 is more compact and energy-efficient, designed primarily to lower the investment threshold.

It depends on the type of bricks you’re making and the model you choose. Semi automatic block production line output is calculated based on an 8-hour single shift: The QT3-20 can produce 4,320 hollow bricks or 14,400 colored bricks per day; the QT4-25 can produce 5,700 hollow bricks, 25,200 solid bricks, or 26,000 paving bricks per day; the QT4-26 can produce 4,400 hollow bricks or 19,200 solid bricks per day.

A standard semi-automatic block production line primarily consists of: a batching and mixing system (used to mix cement and sand), a main forming machine (equipped with a hydraulic power unit and control panel), a conveyor belt, molds, and supporting tools for manual handling or curing on carts. The specific configuration can be flexibly tailored to your budget.

The prices for semi-automatic block production lines are very reasonable. The exact cost depends on whether you choose the QT3-20, QT4-25, or QT4-26 model, as well as whether you’d like to include additional sets of molds. You can send us the brick types you want to produce and your production volume requirements, and we’ll prepare a detailed equipment quote for you right away.

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