Qt4 25 Vibration Motor Brick Block Making Machine | Full Range

Matched system specification — The QTJ4-25 is positioned as one coordinated package where the press, mould, pallet, and handling requirements are sized together before the quotation is issued, rather than quoting the press alone and leaving the rest to chance.

Technical Specifications

Application Suitability

What a Single "3,600 Pieces per Day" Figure Hides

A capacity number without a block format is not a capacity — it is a guess.

I have watched buyers sign off on a quotation that promised thousands of blocks per shift, only to discover the figure assumed a 100mm hollow block while their market was buying 250mm hollow blocks. The QTJ4-25 produces 2,880 pieces per day on a 400×250×200mm hollow block but reaches 6,720 on a 400×100×200mm format. That gap is not a rounding error — it is the difference between meeting a contract deadline and falling short. When evaluating any entry-level automatic block machine range, the first question must always be: which format does that number assume? [NEED_CITE: common misrepresentation of block machine capacity in quotations]

Where the QTJ4-25 Sits in the Full Lineup

This machine occupies the entry tier of the automatic block machine range. It is a vibration-motor-driven, semi-automatic press built for first-time plant setups or small-volume replacement scenarios. The 17kW rated power and 1-2 operator requirement place it at the lowest investment point, while the 6400×1500×2700mm footprint fits a compact workshop. Buyers who know their daily demand will stay in this tier can avoid overpaying for capacity they will never use.

Matching the Machine to Your Actual Market

The real decision is not whether the QTJ4-25 can produce blocks — it is whether the formats it produces match what your customers buy. A 400×200×200mm hollow block yields 3,600 pieces per day, while a 225×112.5×60mm paver yields 7,680. If your local market moves heavily in pavers, this machine covers the volume. If your market is 250mm hollow blocks, the output drops noticeably, and you may need to consider a higher tier in the block machine manufacturer lineup. The exchangeable mould system means one press covers multiple formats, but each format carries its own realistic daily output. [NEED_CITE: regional block format demand variations across African and Southeast Asian markets]

Reading the Specs That Actually Matter

The 21MPa rated hydraulic pressure and 25-second cycle time define how densely the block is compacted and how fast the press completes one press. Higher pressure with adequate vibration produces a denser block that survives transport and stacking without chipping. The 850×480mm pallet size must match your curing yard — if your forklift and rack spacing were designed around a different pallet dimension, every pallet becomes a manual handling problem. The electro-mechanical control system keeps the operation straightforward, but buyers should confirm the voltage, frequency, and control display language before production begins. A 380V/50Hz machine arriving in a 220V/60Hz market will not run without a costly transformer or rewinding.

The Hidden Cost of Skipping the Site Survey

I once configured a machine for a buyer who wanted to keep costs down. We matched the budget but did not press hard enough on their local sand quality. The sand carried heavy clay content, and within months the valve group was clogged and the machine was down. That lesson applies directly here: if your aggregate has high fines or clay, the vibration force and pressure settings must account for it. A machine specified against a clean-sand default will underperform on your actual mix. [NEED_CITE: effect of aggregate clay content on hydraulic valve block life]

Why Buyers Source This Tier Through Us

The QTJ4-25 is specified as one matched system — press, mould, pallet, and handling are sized together, not assembled from separate catalogues. The configuration is set against the buyer’s actual mix design and local aggregate, not a default table. Mould design covers the formats the buyer’s market actually sells, including custom drawings when standard formats do not match. The automation level is selectable, so a buyer can start semi-automatic and add automatic stacking later without replacing the press. Installation support includes on-site commissioning and operator training, so the first production run is not a trial-and-error exercise.

Documentation & Verification

• Line layout and capacity calculation stating the block format assumed for the QTJ4-25
• Machine specification sheet confirming voltage, frequency, and control language
• Mould drawing and format list covering all exchangeable mould options
• Pallet specification for the 850×480mm size matched to your curing yard
• Factory test record on your target block format before dispatch
• Operation and maintenance manual with wear parts list

Installation, Commissioning & Support

• Foundation must support 3500kg net weight across the 6400×1500mm footprint with level tolerance
• Dedicated 17kW power circuit at confirmed voltage and frequency before the QTJ4-25 arrives
• Machine ships fully assembled; only mould and pallet loading required on site
• First-run commissioning includes cycle time and pressure adjustment for your mix
• Operator training covers mould change procedure and daily maintenance checkpoints
• Wear parts and mould availability confirmed at the time of order, not after first breakdown

What to Share When You Open an Inquiry

Send your target block format and dimensions, the daily volume your market actually absorbs, and a sample or description of your local aggregate. Confirm your site voltage and frequency, the language you need on the control display, and the pallet size your existing curing racks and forklift can handle. If you have a project deadline, state it upfront so lead time can be quoted honestly.

Frequently Asked Questions

Q: How is the daily capacity calculated and which format does it assume?
A: The QTJ4-25 produces different outputs depending on the block format. For a 400×200×200mm hollow block, output is 3,600 pieces per 8-hour day. For a 400×250×200mm hollow block, it drops to 2,880 pieces per day. Always confirm which format the quoted figure assumes before comparing machines.

Q: What curing yard space does the QTJ4-25 need to support its daily output?
A: With an 850×480mm pallet and outputs ranging from 2,880 to 7,680 pieces per day depending on format, you need enough rack or floor space to hold at least one full day of production while previous days cure. Your pallet size must also match your forklift and rack spacing.

Q: Where does this machine sit compared to higher-output automatic models?
A: The QTJ4-25 is the entry tier — semi-automatic, vibration-motor-driven, 17kW rated power, 1-2 operators. Higher tiers add full hydraulic systems, PLC control, and automatic stacking. The upgrade path exists: you can start here and add automation later without replacing the press.

Q: Can one machine produce multiple block formats?
A: Yes. The exchangeable mould system covers hollow blocks, solid blocks, pavers, interlocking bricks, and curbstone on the same 850×480mm pallet. Each format has its own cycle time and daily output, so confirm the mould drawing and format list before ordering.

Q: What voltage options are available and is the display language confirmed?
A: The standard configuration is 380V, 3-phase, 50Hz, but voltage is customizable to your local supply. The control display language must be confirmed before production begins to avoid commissioning delays when the machine arrives on site.