QT4-15 Automatic Block Machine for Hollow Block – Full Range

Matched System Sizing — the QT4-15 is positioned within a complete block production range where machine, pallet, and mould are specified together so daily output reflects the actual format you sell.

Technical Specifications

Application Suitability

What "Cycles Per Hour" Leaves Out for a Fully Automatic Concrete Block Making Machine Manufacturer

A cycle time means nothing unless the block format behind it is named.

I spent an extra week in Cambodia recalibrating a mid-tier automatic block press because the quoted output assumed a standard hollow block, while the buyer was running a heavier interlocking paver with volcanic aggregate. The vibration force and pressure that worked for one format left the other under-compacted and below strength. When a fully automatic concrete block making machine manufacturer quotes production speed without naming the mould, the daily output you plan against simply does not materialise on the factory floor [NEED_CITE: block format influence on cycle time and daily throughput].

Where the QT4-15 Sits Across the Full Machine Range

The QT4-15 occupies the mid-tier of our automatic lineup, bridging the gap between entry-level semi-automatic presses and high-capacity lines designed for continuous three-shift operation. Buyers evaluating a first fully automatic concrete block making machine often start here because the 300 m² recommended factory area keeps initial site investment manageable while still delivering hydraulic demolding and platform vibration that semi-automatic models lack. The position in the range matters: it determines which upstream batching and downstream pallet handling stations can keep pace without the press waiting idle between cycles.

Matching Output Tiers to Your Block Format and Market

Choosing between a smaller workshop press and this tier depends less on maximum cycles and more on the formats your local market actually buys. A fully automatic concrete block making machine manufacturer should show you capacity per format — hollow block, solid block, paver, curbstone — because each demands a different moulding pressure and vibration duration. The QT4-15’s 55 kN vibration force and 16–21 MPa rated pressure cover a wide band of standard concrete mixes, but the real daily figure only emerges once your specific block drawing and aggregate sample are on the table [NEED_CITE: vibration force and hydraulic pressure matching to mix design].

Reading the Numbers That Actually Matter

Platform vibration at 4200 r/min drives compaction from below the mould cavity, which suits the 880×550 mm pallet footprint and keeps density uniform across multi-cavity moulds. The 16–21 MPa hydraulic pressure range gives operators room to adjust downward for lighter hollow blocks and upward for dense curbstone, rather than locking the press into a single compaction profile. Power draw at 18.45 kW means the QT4-15 can run from a standard industrial supply without a dedicated high-capacity transformer, simplifying site preparation for first-time plant owners. Total mass of 4 T keeps foundation requirements modest — a level concrete slab with standard anchor points is typically sufficient at this tier.

The Cost of Ordering a Press Without Confirming the Line Around It

Quoting a block machine in isolation is the fastest way to discover that pallet handling, stacking, and curing rack systems were never included. Buyers who focus only on the press itself often arrive at commissioning to find output stacking by hand because the automatic stacker was treated as an optional extra. Pallet size chosen without checking the curing area and forklift already on site leads to pallets that cannot be moved efficiently, turning a fully automatic line into a bottleneck at the curing stage [NEED_CITE: pallet handling mismatches in block production plants].

Why Buyers Source This Tier Through a Single Matched System

Every specification on the QT4-15 is cross-referenced against the mould, pallet, and handling equipment in the same quotation, so vibration force and pallet size are not independent choices but a coordinated set. The mould design covers the formats your market sells, including custom drawings when standard cavity layouts do not match local block dimensions. Voltage, frequency, and PLC display language are confirmed before production rather than discovered at unloading. Factory test records are generated with your target block format in the mould, not a generic test block. Automation level is selectable, meaning a buyer can start at this tier and add pallet feeding or stacking modules later without replacing the press.

Documentation & Verification

• Line layout showing capacity calculation with block format stated for every output figure
• Machine specification sheet with confirmed voltage, frequency, and control language
• Mould drawing and format list distinguishing included moulds from optional add-ons
• Pallet specification matched to buyer’s curing area dimensions and forklift capacity
• Factory test record run on target block format before dispatch
• Hydraulic and electrical schematic for local maintenance teams

Installation, Commissioning & Support

• Foundation slab prepared to level tolerance for the 4100×1600 mm machine footprint
• Dedicated circuit sized for the 18.45 kW total power draw with voltage confirmed pre-shipment
• Machine dismantled for 40HQ container loading and reassembled on site with alignment checks
• First-run parameter matching using buyer’s local aggregate sample and target block format
• Operator training covering mould change procedure and PLC interface in confirmed language
• Wear parts and mould list supplied with reorder codes for hydraulic and vibration components
• Maintenance schedule aligned with hydraulic oil, filter, and vibration motor inspection intervals

What We Need Before Quoting

Send the block format drawing or photograph of the block your market currently sells, along with the daily output target you need to meet contract deadlines. Include the aggregate type available locally — crushed stone, river sand, fly ash, or volcanic rock — because the vibration and pressure settings depend on it. Confirm your site voltage and frequency so the electrical cabinet is built correctly before the QT4-15 leaves the factory.

Frequently Asked Questions

Q: How do I verify the real daily output of the QT4-15 for the block format I actually sell?
A: The 25–30 second molding cycle is a starting reference, but real output depends on block format, mix design, and curing logistics. We calculate daily capacity per specific mould cavity layout and provide it in the line layout document before you commit. This ensures the number in the quotation matches what the press produces on your factory floor with your local aggregate.

Q: Where does the QT4-15 sit in the full machine range compared to semi-automatic and higher-capacity models?
A: It is the mid-tier fully automatic option, above semi-automatic presses that require manual pallet handling and below high-capacity lines built for continuous multi-shift operation. The 300 m² recommended factory area and 4 T mass place it within reach of first-time plant buyers who still want hydraulic demolding and platform vibration rather than manual operation.

Q: Which block formats and moulds come with the base QT4-15 configuration?
A: The base quotation includes moulds to be confirmed during the proposal stage based on your market requirements. Hollow block, solid block, paver, interlocking brick, and curbstone moulds are all available. We list included versus optional moulds explicitly in the format list so there are no surprises at commissioning.

Q: Can I start with the QT4-15 and add automatic pallet stacking later?
A: Yes. The automation level is configurable, and the press is designed to accept pallet feeding and stacking modules as separate additions. This lets buyers commission the core block line first and expand handling automation as production volume grows without replacing the main press unit.