


1. Large‑pallet & Multi‑mold Switching for Diversified Paving‑block Project Orders
QT4‑15C is fitted with enlarged pallets of 1020×570×30 mm and sufficient forming area, specially optimized for paving‑block production. You can produce concrete paving blocks of different textures, thicknesses and dimensions merely by replacing molds. One machine meets paving‑material demands for landscape projects, road reconstruction and parking lots. There is no need to buy multiple brick‑making machines, which reduces machinery investment and saves workshop floor space. Faced with mixed‑spec paving‑block orders, mold change enables fast production switch without separate production lines, shortening overall order lead‑time. This machine features excellent raw‑material compatibility. Industrial solid waste such as fly ash, furnace slag, coal gangue and stone powder can serve as main feedstock. Fly‑ash proportion can reach up to 70%, which greatly cuts consumption of high‑cost cement and lowers raw‑material cost per paving block. It complies with solid‑waste recycling policies and improves profit margin, with more prominent cost benefits for factories located in regions rich in local industrial waste.

2. Integrated Mechatronic‑optical‑hydraulic & Patented Vibration System for High‑performance Frost‑resistant Paving Blocks
Combining mechanics, electrics, photoelectric sensing, hydraulics and high‑frequency vibration technology, the machine is equipped with self‑developed patented vibration box. Table‑vibration delivers powerful excitation force within 50‑70 Hz frequency range. Vibration works together with hydraulic pressure to fully compact concrete mix. Tensile strength of finished paving blocks exceeds 15 MPa. High compaction density brings outstanding frost resistance, water impermeability, sound‑insulation and heat‑insulation performance, fully satisfying long‑term outdoor‑paving requirements for municipal roads, parking lots and garden walkways. Forced synchronous mold‑lifting ensures smooth demolding and consistent thickness across batches, greatly reducing rejects with chipped edges, broken corners or deformation. Low reject rate avoids raw‑material waste and cuts rework workload. For export and municipal‑bidding orders with strict standards on dimension and physical performance, the machine consistently outputs flat paving blocks with tiny dimensional errors and mitigates risks of returns or financial deductions caused by non‑conforming goods.

3. PLC & Non‑contact Proximity‑switch Full‑automatic Control, Low Power Consumption for Power & Labor Saving
Controlled by PLC and non‑contact proximity switches for full‑process monitoring, the machine automatically completes pallet feeding, material distribution, vibration pressing, demolding and brick discharging for paving‑block production. Two operation modes are available: single‑cycle for mold testing and quality inspection, and continuous mode for mass production. Under continuous‑production mode, the machine runs non‑stop with adequate raw materials and pallets, perfectly suited for time‑sensitive large‑volume paving‑block supply projects. Total installed power is only 21.8 Kw with stable 15‑20 s forming cycle. It guarantees output while lowering power consumption per paving block. Multiple paving blocks are demolded as one whole board for easy downstream stacking and handling, cutting on‑site labor requirement and payroll cost. Closed‑loop control reduces mechanical damage caused by mis‑operation. Operators can get competent after simple training, easing the shortage of skilled workers in brick plants.

4. Premium Core Components Minimize Unplanned Downtime & Guarantee On‑time Paving‑block Delivery
Key hydraulic valves, oil cylinders and electrical parts are imported originals or top‑tier domestic brands. Every machine passes complete mechanical‑electric‑hydraulic linkage test before delivery. Non‑contact proximity switches eliminate mechanical‑contact wear. Failure rate remains low even under heavy‑duty continuous paving‑block production, reducing frequent disassembly‑repair and long‑term spare‑part expenses. Municipal and export paving‑block orders come with strict delivery deadlines. Equipment failure will trigger production suspension, order delay, penalty charges or even client loss. QT4‑15C delivers stable operation to reduce capacity loss from unplanned shutdown and safeguard your business reputation.

5. Natural‑curing Available, Lower Initial Investment for Fast Paving‑block Project Launch
Fresh green paving‑block blanks from QT4‑15C support natural curing. Costly steam‑curing kilns and corresponding fuel & power consumption are not required. It greatly cuts auxiliary‑equipment investment for new‑plant construction. Small‑and‑medium investors and start‑up building‑material manufacturers can launch paving‑block production without heavy capital input on curing facilities. Project construction cycle is shortened so you can start order‑taking and profit‑generation earlier. Bricks reach qualified delivery strength via standardized stacking and scheduled water sprinkling. The flexible solution fits both large‑scale formal brick plants and small‑and‑medium processing factories with limited budgets. Whether you take domestic municipal paving‑block orders or export paving‑block contracts, production can be implemented based on your existing plant conditions.
1. Large‑pallet & Multi‑mold Switching for Diversified Paving‑block Project Orders
QT4‑15C is fitted with enlarged pallets of 1020×570×30 mm and sufficient forming area, specially optimized for paving‑block production. You can produce concrete paving blocks of different textures, thicknesses and dimensions merely by replacing molds. One machine meets paving‑material demands for landscape projects, road reconstruction and parking lots. There is no need to buy multiple brick‑making machines, which reduces machinery investment and saves workshop floor space. Faced with mixed‑spec paving‑block orders, mold change enables fast production switch without separate production lines, shortening overall order lead‑time. This machine features excellent raw‑material compatibility. Industrial solid waste such as fly ash, furnace slag, coal gangue and stone powder can serve as main feedstock. Fly‑ash proportion can reach up to 70%, which greatly cuts consumption of high‑cost cement and lowers raw‑material cost per paving block. It complies with solid‑waste recycling policies and improves profit margin, with more prominent cost benefits for factories located in regions rich in local industrial waste.

2. Integrated Mechatronic‑optical‑hydraulic & Patented Vibration System for High‑performance Frost‑resistant Paving Blocks
Combining mechanics, electrics, photoelectric sensing, hydraulics and high‑frequency vibration technology, the machine is equipped with self‑developed patented vibration box. Table‑vibration delivers powerful excitation force within 50‑70 Hz frequency range. Vibration works together with hydraulic pressure to fully compact concrete mix. Tensile strength of finished paving blocks exceeds 15 MPa. High compaction density brings outstanding frost resistance, water impermeability, sound‑insulation and heat‑insulation performance, fully satisfying long‑term outdoor‑paving requirements for municipal roads, parking lots and garden walkways. Forced synchronous mold‑lifting ensures smooth demolding and consistent thickness across batches, greatly reducing rejects with chipped edges, broken corners or deformation. Low reject rate avoids raw‑material waste and cuts rework workload. For export and municipal‑bidding orders with strict standards on dimension and physical performance, the machine consistently outputs flat paving blocks with tiny dimensional errors and mitigates risks of returns or financial deductions caused by non‑conforming goods.

3. PLC & Non‑contact Proximity‑switch Full‑automatic Control, Low Power Consumption for Power & Labor Saving
Controlled by PLC and non‑contact proximity switches for full‑process monitoring, the machine automatically completes pallet feeding, material distribution, vibration pressing, demolding and brick discharging for paving‑block production. Two operation modes are available: single‑cycle for mold testing and quality inspection, and continuous mode for mass production. Under continuous‑production mode, the machine runs non‑stop with adequate raw materials and pallets, perfectly suited for time‑sensitive large‑volume paving‑block supply projects. Total installed power is only 21.8 Kw with stable 15‑20 s forming cycle. It guarantees output while lowering power consumption per paving block. Multiple paving blocks are demolded as one whole board for easy downstream stacking and handling, cutting on‑site labor requirement and payroll cost. Closed‑loop control reduces mechanical damage caused by mis‑operation. Operators can get competent after simple training, easing the shortage of skilled workers in brick plants.

4. Premium Core Components Minimize Unplanned Downtime & Guarantee On‑time Paving‑block Delivery
Key hydraulic valves, oil cylinders and electrical parts are imported originals or top‑tier domestic brands. Every machine passes complete mechanical‑electric‑hydraulic linkage test before delivery. Non‑contact proximity switches eliminate mechanical‑contact wear. Failure rate remains low even under heavy‑duty continuous paving‑block production, reducing frequent disassembly‑repair and long‑term spare‑part expenses. Municipal and export paving‑block orders come with strict delivery deadlines. Equipment failure will trigger production suspension, order delay, penalty charges or even client loss. QT4‑15C delivers stable operation to reduce capacity loss from unplanned shutdown and safeguard your business reputation.

5. Natural‑curing Available, Lower Initial Investment for Fast Paving‑block Project Launch
Fresh green paving‑block blanks from QT4‑15C support natural curing. Costly steam‑curing kilns and corresponding fuel & power consumption are not required. It greatly cuts auxiliary‑equipment investment for new‑plant construction. Small‑and‑medium investors and start‑up building‑material manufacturers can launch paving‑block production without heavy capital input on curing facilities. Project construction cycle is shortened so you can start order‑taking and profit‑generation earlier. Bricks reach qualified delivery strength via standardized stacking and scheduled water sprinkling. The flexible solution fits both large‑scale formal brick plants and small‑and‑medium processing factories with limited budgets. Whether you take domestic municipal paving‑block orders or export paving‑block contracts, production can be implemented based on your existing plant conditions.


QT4-15C Fully Automatic Concrete Brick Making Machine
QT4-15C fully automatic concrete brick making machine is a popular mid-range brick machine for global brick factories. I...
QT4-15 Automatic Concrete Pavement Brick Making Machine | Color Paver Production Line
QT4-15 automatic concrete paver machine is specially designed for color pavement bricks and interlocking paving blocks. ...
QT4‑15B Full‑automatic Hydraulic Paving Brick Machine | Multi‑functional Interlocking Paver, Grass Paver & Curb Stone Production Equipment
QT4‑15B full‑automatic hydraulic paving brick machine, Produce interlocking pavers, grass pavers, curb stones and other ...
Shandong Hongfa Scientific Industrial&Trading Co.,Ltd ©️2026Copyright © LU ICP B 16041216-4