Germany Technology Qtj4-25c Concrete Block Machine Brick Making Machine for Construction

• Customization: Available
• After-sales Service: Lifetime Support
• Warranty: 3 Months After Installation
• Model NO.: QTJ4-25C
• Certification: CE, ISO, SGS
• Customized: Customized
• Automatic Grade: Automatic
• Type: Vibration Molding
• Host Machine Power: 20.6 Kw
• Rated Voltage: 380 V
• Molding Cycle: 25~30 S
• Pallet Size: 850*550 mm
• Exciting Force: 50 kN
• Product Height: 60~200 mm
• Labour Cost: 4~6 Workers
• Color: Customized
• Host Machine Weight: 2200 Kg
• Mold Material: Manganese Steel
• Molding Type: Platform Vibration
• Vibration Acceleration: 15~20 G
• Transport Package: Standard Seaworthy Packing
• Specification: L*W*H: 5600*2240*2400mm
• Trademark: Maxport
• Origin: China
• HS Code: 8474802000
• Production Capacity: 5800 PCS Per Day for 8 Inches Hollow Block
• Package Size: 2150.00cm * 1660.00cm * 2550.00cm
• Package Gross Weight: 1750.000kg

Product Description

Product Description

Cost-Saving & Eco-Friendly 

1. Flexible Material Use

→ The QT4-25C can use sand, stone, gravel, and slag, as well as fly ash, coal cinder, pumice, and perlite. This adaptability lowers material restrictions and maximizes local resource use.

2. Reduce Production Costs

→ By utilizing industrial waste such as fly ash and slag, factories can cut raw material costs by up to 20-30%, while maintaining block quality.

3. Green & Sustainable

→ Turning waste into building materials not only saves money but also reduces environmental impact, helping manufacturers achieve both profitability and sustainability.

High-Performance Industrial Motors
1.High-Efficiency& Low cost
→ Premium industrial-grade motors deliver 95% energy efficiency, ensuring stable, powerful, and continuous operation.
2.Long Lifespan & Low Maintenance
→ Over 10,000 hours of reliable service with minimal upkeep, cutting operational costs.
3.Smart Control & Precision Forming
→ Motors &inverter &programmable control reduce failures, support high-frequency vibration and low-frequency feeding for superior block quality.

Feeding System
1.Patented Recirculation Feeding Technology:
→ Efficiency and Sustainability:The precision conveyor and bearing rollers improves product consistency by 15-20%.
→ Cost and Energy Savings:It reduces raw material waste by up to 25%, lowers energy consumption by 15%, and supports continuous high-speed production.
2.Material Feeding Claws:
→ The core component is our innovative rolling spreading mechanism, equipped with 12 sets of durable spreading teeth. This design guarantees even material distribution, reducing raw material waste by 5%.

Flexible  Mold Alternative
1.Quick Mold Change
→ Allowing mold replacement in just 10~15 minutes. This ensures smooth transitions with minimal downtime.
2. Multiple Block Type
→ With one machine, you can produce hollow blocks, solid bricks, porous bricks, pavers, and curbstones. Each mold is designed for high precision, keeping block size accurate within 0.3 mm.
3.Market Flexibilit
→ By switching molds easily, the machine meets different project needs and local market demands, maximizing equipment utilization and return on investment.
 

 

Intelligent PLC Control System
1.Safe Operation
→ Using semi-automatic PLC control system, integrating AC contactors, time relays, and sensors for precise coordination. With interlock protection, it ensures safe operation and reduces malfunction risks by over 80%. 
2.Simple Control
→ With one-touch adjustment of vibration, feeding, and cycles, the system is easy to use. 1 operator can manage the full line with minimal training.
3.Lower Cost
→ By cutting 2-3 workers per shift and reducing material waste, the PLC system lowers daily operating costs while keeping block quality at ≥15 MPa.

Detailed Photos

Product Parameters

Productivity of QTJ4-25C Block Making Machine
Item	Size/mm	QTY/Mould	QTY/Hour
Hollow Block	400*200*200	4 pcs	580 pcs
	400*150*200	6 pcs	870 pcs
	400*100*200	8 pcs	1160 pcs
Porous Block	240*115*90	9 pcs	1400 pcs
Solid Brick	240*115*53	21 pcs	3300 pcs

Design Drawing

Why Choose QTJ4-25C Production Line
√1. Smart Operation
Semi-automatic PLC control with auto pallet feeding, material distribution, and mold lifting. Cuts labor by 2-3 workers and reduces errors by 90%.
√2. High Efficiency
Molding cycle 25-30s, capacity: 580 hollow blocks/hour, 3,300 solid bricks/hour, 1,400 porous bricks/hour. Daily output up to 33,000 pcs with ≥15 MPa strength.
√3. High Return
Power use only 20.6 kW, cement saved 20% by using fly ash & slag. With 33,000+ pcs/day, payback period just 1~2  months.
 

 

Certifications

Company Profile

The top 10 block-making machine exporters in China
1 of every 10 block making machines Exported from China is Ours

Shandong Maxport Intelligent Technology Co., Ltd.
→ Your Reliable Partner in Concrete Block and Construction Machinery
  Founded in 1990, Shandong Maxport has grown into one of China's largest manufacturers of construction machinery.
• 4 modern production bases
• Total land area: 290,000 m² (approx. 43.6 hectares)
• Workshop space: 86,000 m²
• Over 1,120 skilled technical staff, including senior engineers and R&D specialists
• More than 300 advanced machining and inspection equipment
• Annual production capacity: 7,000 complete sets of machines
• Annual output value: RMB 220 million (approx. USD 30 million)

→ We specialize in designing and manufacturing:
• Concrete block machines (standard and customized models)
• AAC production lines
• Cement roof tile machines
• Pipe forming machines
• Mixing plants, pressure machines, stacking systems and more

→ Our product portfolio includes 10+ major series and over 50+ models to meet diverse construction needs.

Customers Feedback

Global Presence & Trusted Quality

  Our machines are trusted by contractors, developers, and concrete product manufacturers in over 80 countries, including:
• Russia, USA, Brazil, Australia, India, South Africa, and across Southeast Asia, Central Asia, and the Middle East
• Regional service centers and sales offices in key Chinese provinces ensure fast response and localized support.

We're proud to be part of global infrastructure projects, including those under China's Belt and Road Initiative.

Recognized Quality and Service Commitment

  Instead of domestic awards, what matters to our overseas partners is consistent performance, long-term support, and transparent cooperation.
• All machines are built to international standards(CE,ISO) and undergo rigorous quality inspections before delivery
• Our after-sales support includes remote assistance, onsite training, spare parts supply, and technical upgrades

"Quality machines, dependable service, honest partnership" - these are not slogans, but our everyday practice.

 

FAQ

To ensure stable and long-term operation of your equipment, we provide the following support services:

Q: What's your warranty period, and what does it cover?
A:  3-month warranty for key parts including electrical components, hydraulic systems, and reducers.1-year full machine warranty from the date of after installation finished at buyer's factory.We also offer lifetime support with professional technicians available for installation guidance and troubleshooting. Customers can rely on us for timely, long-term service.

Q: How do you handle shipping and delivery?
A: Delivery usually takes about 25-30 days for standard machines. Customized models may take longer depending on specifications. We keep you updated throughout and provide estimated shipping schedules once your order is confirmed.

Q: What are the accepted payment terms?
A: Our standard terms are 30% T/T in advance and the remaining 70% via T/T or L/C before delivery. We also support the Made-in-China platform guarantee service for added security.

Q: Do you offer overseas installation and commissioning?
A: Yes. After delivery, our experienced engineers can travel to your site for installation, training, and commissioning. We also provide 24/7 online video support until you're fully satisfied.

Q: What documents will I receive upon delivery?
A: You'll receive a complete shipment package, including operation manuals, maintenance guides, warranty certificates, a parts list, and packing list. These are essential for smooth setup and future reference.

Q: What spare parts should I prepare, and how do I order them?
A: We recommend stocking critical wear parts like spare molds, pressure pads, and hydraulic seals. Spare parts are available upon request-typically delivered within 7-15 days depending on shipping method.

Q: What if I encounter an issue after installation?
A: Support is available at any time. You can contact our technical team via phone, email, or video call. We'll troubleshoot remotely, help you resolve issues, or dispatch engineers if necessary.

Q: Can you customize the machine according to our needs?
A: Absolutely. We offer OEM/ODM services to tailor machine specs, colors, molds, and automation level to your requirements. Please contact us with details, and we'll propose a customized solution.

Q: How do you ensure product quality and performance?
A: Every machine undergoes rigorous quality checks, with precision tooling and reliable components such as Siemens PLCs and hydraulic systems. Production includes controlled curing and final inspection to ensure consistency and durability. 

Q: What should we consider regarding site preparation?
A: Please ensure adequate land area (e.g., ~10,000 m² for a plant), stable foundation, reliable power supply, and access for installation equipment. Proper site preparation reduces installation time and operational risks.