QTJ4-26 Semi-Automatic Block Machine Production Line – Complete Line

Matched line flow — mixer, conveyor and press are sized as one system so the QTJ4-26 never idles waiting for material.

Technical Specifications

Application Suitability

Why "Pieces per Hour" Is the Wrong Question for a semi-automatic block machine production line

A block line only produces as fast as its slowest station.

When I configured an early line with a similar press class, the host machine cycled fine on its own, but the mixer batch size and conveyor feed rate did not keep up. The press sat idle between cycles waiting for the next charge of material. Daily output dropped well below what the press alone could theoretically deliver. The buyer saw the headline capacity number and expected it to materialize — but a semi-automatic block machine production line is a chain of stations, not a single machine. If the JQ350 pan mixer finishes a batch slower than the press consumes it, or the 6m belt conveyor moves material at a rate the hopper outpaces, the bottleneck shifts upstream and the press becomes the most expensive piece of equipment standing still [NEED_CITE: line synchronization principles in concrete block production].

Station Alignment from Mixer Through to Curing Yard

The JQ350 pan mixer, 6m belt conveyor, QTJ4-26 press and manual transfer trolley are specified together as a semi-automatic block machine production line. Each station’s batch volume and transfer rate is calculated against the press cycle so material arrives at the storing hopper before the previous charge is exhausted. This alignment is what separates a line that runs continuously from one where operators watch the press wait.

What Happens at the Output End

Without an auto stacker, every pallet of freshly pressed blocks must be moved by hand from the press exit to the transfer trolley. At higher cycle rates this creates a second bottleneck — the press completes a cycle but the operator has not yet cleared the previous pallet. The optional auto stacker, capable of stacking 3 to 6 layers depending on block height, removes this manual dependency and keeps the output end flowing at the same pace as the press [NEED_CITE: pallet handling workflow in semi-automatic block plants]. The dragon gate frame with four wear-resisting vertical shafts ensures that mould alignment holds across thousands of repeated vibration cycles, so block dimensions remain consistent shift after shift.

Reading the Specs That Actually Matter

The dual vibration system pairs two 3 kW lower platform motors with a 1.5 kW upper attached vibrator. Lower vibration compacts the mix from the pallet upward, while the upper vibrator settles the top surface — together they produce denser blocks than single-source vibration alone. The 850mm × 450mm pallet size dictates curing rack spacing and forklift fork width at the buyer’s site; ordering pallets that do not match existing curing infrastructure creates handling problems before the first block is sold. Overall power of 14.25 kW includes the mixer, conveyor and press motors combined, so the site electrical supply must support this draw continuously across a full shift. The JZQ250 speed reducer on the elevating system and the cycloidal pin wheel reducer on the delivery device are industrial-grade components chosen for the shock loads that vibration presses generate [NEED_CITE: speed reducer selection for vibrating block press applications].

The Cost of Skipping Line Integration

A buyer who sources a press from one supplier and a mixer from another often discovers the mismatch on commissioning day. The mixer output per batch may be larger or smaller than the press hopper expects, the conveyor belt speed may deliver material faster than the hopper can accept, or the trolley may not align with the pallet exit height. These are not defects — they are integration failures. Every station in a semi-automatic block machine production line must speak the same language of cycle time, batch volume and transfer height. When they do not, the line produces at the speed of its weakest link and the buyer pays for capacity that never materializes [NEED_CITE: integration risks in multi-supplier block production lines].

Why This Line Is Configured as a System

Block machinery is our single focus, which means the press, mould, pallet and handling equipment are specified as one matched system rather than assembled from separate catalogues. Configuration is set against the buyer’s actual mix design and local aggregate, not a default setting. Mould design covers the formats the buyer’s market actually sells, with custom drawings available. Automation level is selectable — a buyer can start with the basic manual trolley setup and add the auto stacker later as production volume grows. Installation support includes operator training so the crew understands not just the press but how each station in the line connects.

Documentation & Verification

• Line layout drawing showing mixer, conveyor, press and trolley positions with cycle times per station
• Capacity calculation stating the exact block format and mould assumed for the output figure
• Pallet specification sheet matched to 850mm × 450mm and buyer’s curing rack dimensions
• Electrical schematic confirming voltage, frequency and control language before production
• Factory test record running the buyer’s chosen block format before dispatch

Installation, Commissioning & Support

• Foundation pad sized to the 3600mm × 1700mm footprint with vibration isolation considerations
• Dedicated power circuit supporting 14.25 kW continuous draw at confirmed site voltage
• Machine arrives with frame, vibration table and hopper as separate assemblies for container loading
• First-run commissioning includes mixer batch timing and conveyor speed adjustment to match press cycle
• Operator training covers mould change procedure, pallet loading sequence and daily lubrication points
• Wear parts list covers vibration motor mounts, shaft bushings and hopper liner plates

What We Need to Configure Your Line

Send us the block format your market sells most — hollow, solid or a mix of both — along with your target daily output. We also need your site power supply details (voltage, frequency, phase) and the preferred PLC display language for your operators. If you already have a mixer or conveyor on site, share the model and throughput so we can confirm whether the QTJ4-26 integrates with your existing upstream equipment or whether the full line package is the better fit.

Frequently Asked Questions

Q: How is the line capacity calculated and which block format is the figure based on?
A: We calculate capacity using the specific mould format you plan to run — for example, 390×190×190mm hollow blocks at 4 pieces per cycle. The daily output figure accounts for mixer batch time, conveyor transfer rate and press cycle together, not the press alone. This gives you a realistic number tied to your actual product, not a generic hourly claim.

Q: Can the QTJ4-26 integrate with a mixer or conveyor I already own?
A: Yes, provided the existing equipment matches the feed rate and batch volume the press expects. Share your mixer model and output per batch, and we will confirm whether the timing aligns. If there is a gap, we adjust the line layout or recommend a specific station replacement rather than forcing a mismatch.

Q: Is the auto stacker included in the base line or optional?
A: The auto stacker is optional. The base line includes a manual transfer trolley for moving pallets to the curing yard. The stacker, which handles 3 to 6 layers depending on block height, is added when you want to reduce manual pallet handling at the press output and keep pace with higher cycle rates.

Q: What voltage, frequency and PLC language should I confirm before production starts?
A: We need your site voltage (e.g., 380V or 415V), frequency (50Hz or 60Hz) and phase (3-phase standard), plus the display language your operators read. Confirming these before the machine enters production avoids rewiring or reprogramming delays when the equipment arrives at your site.