The QTJ4-40B2 semi-automatic concrete block making machine, also named QTJ4-40B2 block making machine, is a fixed small table vibration brick molding equipment independently developed by Shandong Hongfa. It can work alone or be matched with a 350 mixer and conveyor to build a complete simple production line, as shown in the production process diagram attached to the manual. The whole machine adopts mechanical and electrical integrated control, with mature and stable overall structure. It is a cost-effective entry-level block machine specially customized for small workshops, family startups and small building material factories in Africa, Southeast Asia and other regions. Its core advantages are detailed below, followed by a brief introduction to auxiliary features.
This QTJ4-40B2 concrete block making machine is equipped with an independent vibration unit: two 3KW bottom vibrators and one 1.5KW upper vibrator work synchronously during molding, with a total power of 9.7KW and 28KN exciting force at 2800rpm vibration frequency. The platform vibration feeding + upper head pressing vibration mode ensures even material distribution inside the mold. Each molding cycle only takes 40 seconds, with a daily stable output of 1,800–2,000 blocks. Extended vibration for 2–3 seconds before demoulding effectively reduces brick cracking, sticking and missing edges, delivering blocks with high density, uniform strength and smooth surface.
As a versatile semi-automatic concrete block machine, it supports various cheap local raw materials instead of expensive pure cement. Available aggregates include river sand, stone dust, gravel, broken bricks, fly ash, ceramsite and construction waste residue. Users can recycle local solid waste for production, greatly lowering raw material and long-distance transportation costs, and complying with global environmental solid waste recycling regulations.
The machine adopts gantry heavy steel frame and four vertical shaft guide structure with wear-resistant sliding sleeves, realizing accurate positioning of molds and pressing heads. The lifting system is composed of cone rotor lifting motor, JZQ250 reducer, rocker arm, positioning pins and hanging pins. The chain transmission drives the lower mold to lift in parallel, and the suspended upper mold can be automatically locked by positioning pins to avoid offset during operation. All key stress parts are thickened and reinforced, resisting long-time continuous vibration without deformation.
One machine can produce multiple block types by changing molds, including standard hollow blocks, thin partition blocks, thick load-bearing blocks and 240×115×53 solid standard bricks. Custom molds for special sizes are acceptable. The positioning stand rod can be adjusted simply by shifting screw holes; the whole disassembly and assembly of upper and lower molds can be finished by 1–2 workers with small forklifts, without complicated professional tools, improving production flexibility to meet diverse construction orders.
The whole workflow of feeding, vibrating, molding and demoulding is operated by simple electrical switches. Workers without mechanical experience can master full operation after short training. The manual attaches complete fault elimination table and regular maintenance rules: all lubrication points only need oil filling per shift, vibrators only need inspection every three weeks, and loose bolts can be tightened on site. Common faults like uneven brick height, mold jamming and insufficient density can be fixed locally without waiting for overseas after-sales engineers, minimizing production downtime.
In terms of installation, the equipment only requires flat solid ground and standard three-phase power with leakage protector, and mixers can be installed at a 90° side layout beside the main unit. The supporting pallet size is 850×460×30/40mm, with a maximum compatible pallet size of 850×550×30/40mm, and the net weight of the main machine is 933KG. Complete safety operation rules are equipped: the main machine must be reliably grounded, noise protection tools are recommended during operation, and feed hoppers of matching mixers need protective nets to prevent safety accidents. All wearing spare parts are supplied stably, bringing low long-term maintenance expenditure for small brick-making investors.
Whether for new entrepreneurs entering the building material industry or small brick yards upgrading old equipment, this multi-functional QTJ4-40B2 block making machine is an ideal low-risk investment device to stably supply blocks for rural housing, small municipal roads and wall projects.
The QTJ4-40B2 semi-automatic concrete block making machine, also named QTJ4-40B2 block making machine, is a fixed small table vibration brick molding equipment independently developed by Shandong Hongfa. It can work alone or be matched with a 350 mixer and conveyor to build a complete simple production line, as shown in the production process diagram attached to the manual. The whole machine adopts mechanical and electrical integrated control, with mature and stable overall structure. It is a cost-effective entry-level block machine specially customized for small workshops, family startups and small building material factories in Africa, Southeast Asia and other regions. Its core advantages are detailed below, followed by a brief introduction to auxiliary features.
This QTJ4-40B2 concrete block making machine is equipped with an independent vibration unit: two 3KW bottom vibrators and one 1.5KW upper vibrator work synchronously during molding, with a total power of 9.7KW and 28KN exciting force at 2800rpm vibration frequency. The platform vibration feeding + upper head pressing vibration mode ensures even material distribution inside the mold. Each molding cycle only takes 40 seconds, with a daily stable output of 1,800–2,000 blocks. Extended vibration for 2–3 seconds before demoulding effectively reduces brick cracking, sticking and missing edges, delivering blocks with high density, uniform strength and smooth surface.
As a versatile semi-automatic concrete block machine, it supports various cheap local raw materials instead of expensive pure cement. Available aggregates include river sand, stone dust, gravel, broken bricks, fly ash, ceramsite and construction waste residue. Users can recycle local solid waste for production, greatly lowering raw material and long-distance transportation costs, and complying with global environmental solid waste recycling regulations.
The machine adopts gantry heavy steel frame and four vertical shaft guide structure with wear-resistant sliding sleeves, realizing accurate positioning of molds and pressing heads. The lifting system is composed of cone rotor lifting motor, JZQ250 reducer, rocker arm, positioning pins and hanging pins. The chain transmission drives the lower mold to lift in parallel, and the suspended upper mold can be automatically locked by positioning pins to avoid offset during operation. All key stress parts are thickened and reinforced, resisting long-time continuous vibration without deformation.
One machine can produce multiple block types by changing molds, including standard hollow blocks, thin partition blocks, thick load-bearing blocks and 240×115×53 solid standard bricks. Custom molds for special sizes are acceptable. The positioning stand rod can be adjusted simply by shifting screw holes; the whole disassembly and assembly of upper and lower molds can be finished by 1–2 workers with small forklifts, without complicated professional tools, improving production flexibility to meet diverse construction orders.
The whole workflow of feeding, vibrating, molding and demoulding is operated by simple electrical switches. Workers without mechanical experience can master full operation after short training. The manual attaches complete fault elimination table and regular maintenance rules: all lubrication points only need oil filling per shift, vibrators only need inspection every three weeks, and loose bolts can be tightened on site. Common faults like uneven brick height, mold jamming and insufficient density can be fixed locally without waiting for overseas after-sales engineers, minimizing production downtime.
In terms of installation, the equipment only requires flat solid ground and standard three-phase power with leakage protector, and mixers can be installed at a 90° side layout beside the main unit. The supporting pallet size is 850×460×30/40mm, with a maximum compatible pallet size of 850×550×30/40mm, and the net weight of the main machine is 933KG. Complete safety operation rules are equipped: the main machine must be reliably grounded, noise protection tools are recommended during operation, and feed hoppers of matching mixers need protective nets to prevent safety accidents. All wearing spare parts are supplied stably, bringing low long-term maintenance expenditure for small brick-making investors.
Whether for new entrepreneurs entering the building material industry or small brick yards upgrading old equipment, this multi-functional QTJ4-40B2 block making machine is an ideal low-risk investment device to stably supply blocks for rural housing, small municipal roads and wall projects.
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