QT4‑25C Semi Automatic Concrete Block Making Machine_Semi-automatic concrete block machine_Products

Product advantages

Advantage of QT4‑25C Semi Automatic Concrete Block Making Machine

1. Combined Table‑Mold Vibration System, Reliable Compaction For Various Bricks, Lower Defect Loss

Equipped with combined upper‑and‑table vibration system, it reaches vibration acceleration of 15‑20g and vibration frequency from 50‑70Hz. Rigidly‑connected vibration box delivers sufficient exciting force for hollow blocks, perforated bricks and high‑density solid bricks. Step‑by‑step pre‑vibration & supplementary filling function fills mold cavity corners fully for thin‑wall hollow products and realizes high‑density compaction for solid bricks. Finished blocks achieve compressive strength over 15MPa with good freeze‑thaw and anti‑permeance performance. Uniform dimension greatly reduces rejects like chipping, cavity collapse and loose blocks. Less waste saves raw‑material cost and avoids order rejection & deduction risks. It helps you win long‑term construction‑project orders for both load‑bearing and non‑load‑bearing blocks and meets international procurement standards.

QT4‑25C Semi Automatic Concrete Block Making Machine

2. Mature Relay Sequential Electrical Control With Interlock Protection, Stable Operation & Less Unexpected Shutdown

Different from fully‑automatic PLC‑driven machines, QT4‑25C applies relay, time‑relay and proximity‑switch based semi‑automatic sequential control. It realizes automatic pallet feeding, automatic material distribution and automatic mold lifting & lowering. Built‑in electrical interlock prevents mechanical collision caused by mis‑action. Circuit logic is easy to understand for local overseas electricians without professional programming technicians. Electrical components are adapted to dusty harsh plant environment for low failure rate. It effectively cuts unplanned shutdown risks, which is critical for regions with long spare‑part lead time. Stable running protects your production schedule and avoids penalty loss from delayed deliveries.

3. Modular Compact Light‑Weight Frame, Low Installation Threshold, Save Workshop & Infrastructure Cost

The whole host weighs only 2200KG with dimension 2400×1650×2450mm. It consists of fixed main frame plus height‑adjustable movable frame. Complicated heavy‑duty special foundation is not required; you can fix the machine on flat hardened concrete floor by expansion bolts instead of welding embedded parts, greatly cutting civil‑engineering cost. It integrates pallet feeder, material distribution box, feeding unit and block conveyor in one compact unit, saving workshop space. It is perfectly suitable for old‑plant renovation and newly‑built small‑medium block plants. After on‑site wiring and commissioning, you can start production quickly to shorten payback period.

QT4‑25C Semi Automatic Concrete Block Making Machine

4. Four‑Post Guiding Structure & Adjustable Movable Frame, High Mechanical Precision & Wide Mold Compatibility

Four‑post vertical guiding structure ensures press head and mold box move vertically along sliding sleeves with uniform gaps. Demolding process is smooth without offset to guarantee precise block dimension. Movable frame together with multiple adjusting screw rods supports wide brick‑height adjustment from 60‑200 mm. When switching molds, you only adjust positioning blocks, pull rods and feeding platform height without modifying main machine body. It is compatible with molds for hollow blocks, perforated bricks, standard solid bricks and paving stones. One host covers multiple product ranges and saves huge investment on purchasing several separate brick‑making machines.

QT4‑25C Semi Automatic Concrete Block Making Machine

5. High‑performance Material Distribution Unit, Wide Raw‑material Compatibility To Reduce Raw‑material Expense

The material distribution cart is driven by motor‑gear‑rack mechanism. The main storage hopper has 0.45m³ effective volume and feeding cart reaches 0.15m³. Walking time and pre‑vibration time are electrically adjustable according to aggregate size, material moisture and brick‑wall thickness. It accepts fly ash, slag, furnace slag, gangue, river sand, crushed stone, construction waste and other industrial residues as raw materials. You can source local waste aggregates to reduce cement dosage and long‑distance freight cost. Lower per‑block production cost improves your price competitiveness in local market. It also complies with waste‑recycling policies in many countries and opens more government‑funded infrastructure project opportunities.

Raw Material of QT4‑25C Semi Automatic Concrete Block Making Machine

6. Good External Expandability, Flexible Capacity For Both Small‑batch Startup & Large‑volume Orders

As core forming host, QT4‑25C can run independently and also connect with external mixers, batching plants, conveyors and forklift‑aided curing stations. You can choose basic simplified version or expanded full‑set solution according to your budget. The 25‑30 s cycle delivers high output: up to 6800 standard bricks per hour and 1080 hollow blocks per hour. It handles small‑batch trial production for new startups as well as large‑scale mass production. In peak seasons you fulfill bulk dealer orders; in off‑seasons you switch to paving bricks or perforated bricks to increase annual machine utilization and maximize your return on investment.

QT4‑25C Semi Automatic Concrete Block Production Line