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Block Making Machines

QT4 15B Block Making Plant - Block Making Machines

Uses high-dynamic proportional and directional valves, which automatically adjust the oil flow and pressure as per specific working requirements, to buffer.

QT4-15B Block Making Plant
Block Making Machines

QT4 15B Block Making Plant - Block Making Machines

Choosing between them comes down to daily volume target, available floor area, labour cost and how much surface quality your market expects.

A QT4-15B Block Making Plant converts zero-slump concrete into saleable units in about 20 seconds: the mould fills, the press head descends while the table vibrates, the green product is demoulded onto a pallet and moves to curing. Everything after that is handling and logistics.

Most enquiries we receive start after a fleet problem — a pump that loses pressure on long booms, a mixer whose drum liners wear prematurely, a batching plant whose weighing tolerance drifts. Each of those has an engineering answer, and that answer belongs in the design stage rather than in the warranty claim.

Key Advantages of QT4-15B Block Making Plant

Cycle times near 15 seconds

Well-matched moulds and Servo vibration deliver fast demould without green-product damage.

Quick mould change

Moulds swap in roughly 20 minutes, allowing mixed product runs in one shift.

Consistent compaction

Frequency-controlled vibration plus hydraulic press head ensures uniform density across the whole pallet.

Ready spare-parts kit

A consumable and wear-parts package ships with every machine to cover the first production months.

Heavy-duty frame

Stress-relieved welded frames resist the fatigue caused by continuous vibration.

PLC recipe control

Operators select the product and the machine sets vibration, fill time and press parameters automatically.

Technical Parameters

Indicative ranges for standard configurations. Final values are confirmed against your project requirements.

ParameterSpecification
Model rangeQT4-15, QT5-20, QT6-15, QT8-15, QT9-15, QT10-15 and larger
Cycle time15 - 25 seconds
Pallet size850 × 550 to 1400 × 900 mm
Vibration force35 - 120 kN, frequency adjustable
Installed power25 - 90 kW
Products per pallet4 - 12 hollow blocks (390×190×190 mm)
ControlPLC with touch screen and fault diagnostics
FeedingBelt conveyor from planetary or pan mixer

Typical Applications

On typical projects this equipment is selected where output reliability governs the whole schedule.

Fly ash and slag bricks

Industrial by-product utilisation for green building credits

Hollow and solid blocks

Standard masonry units for load-bearing and partition walls

Interlocking pavers

Pedestrian and light-traffic paving with colour-layer option

Retaining wall blocks

Segmental units for landscape and road structures

Kerbs and edgings

Road restraint and landscape edging units

QT4-15B Block Making Plant photo
QT4-15B Block Making Plant photo
QT4-15B Block Making Plant photo
QT4-15B Block Making Plant photo

From Enquiry to Commissioning

Six defined stages, each with named deliverables, so nothing is left to interpretation.

Requirement study

We start with your mix design, hourly output target, aggregate size, jobsite power supply and site layout — not with a catalogue page.

Scheme design

Our engineering team issues a layout drawing, foundation loads, power requirement and an equipment list matched to the target output.

Quotation & contract

A fixed specification quotation with clear technical annexes protects both sides; no vague "standard configuration" wording.

Production & inspection

Weekly production photos, welding and pressure test records, plus third-party inspection if your project requires it.

Delivery & installation

Container or break-bulk shipment, then on-site supervision of assembly, alignment, calibration and dry-run.

After-sales

Remote diagnostics by video call, spare parts dispatch within 48 hours for stocked items, and periodic return visits.

Frequently Asked Questions about QT4-15B Block Making Plant

How quickly does it pay back?
Most customers report 8-18 months depending on local block prices, shift pattern and raw material cost.
How much labour is needed?
A semi-automatic line needs about 5-7 people; a fully automatic pallet plant needs 3-4 plus forklift handling.
Which model should I start with?
For roughly 8,000-10,000 blocks per shift an QT4-15 class machine is mainstream; above 20,000 units per shift consider an QT8-15 or larger pallet plant.
Can I use fly ash instead of cement?
Yes, typically replacing 20-40% of cement by weight, subject to the strength requirement and local standards.
What about cement content?
Typically 8-12% by weight for hollow blocks depending on the required strength and aggregate quality.

Related Equipment & Resources

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Get a Matched Proposal for QT4-15B Block Making Plant

Tell us the required output, material characteristics, site power supply and destination port. Our engineers return a complete technical and commercial proposal, normally within one working day.

  • Layout drawing and foundation loads supplied before order
  • Fixed specification quotation with a technical annex
  • Spare parts recommendation and operating cost estimate

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WhatsApp: +8619138100129

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Twenty years of export experience across eighty countries. One engineer follows your project from enquiry to commissioning.

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