Integrated line configuration — the QMJ2-45 mobile block machine and its supporting feed, mixing, and curing handling are specified as one system rather than separate purchases.
Technical Specifications
| Parameter | Value |
|---|---|
| Model | QMJ2-45 |
| Product Type | Mobile Block Making Machine |
| Automation Level | Manual operation |
| Machine Type | Mobile / egg-laying (pallet-free) |
| Mould Change | Interchangeable moulds for multiple hollow brick formats |
| Power Source | Electric motor |
| Labor Requirement | 1 to 3 workers |
| Mould Format: 400×200×200 mm | 2 pcs/mould, cycle 25–30 s, 160 pcs/h, 1,280 pcs/8 hr |
| Mould Format: 400×150×200 mm | 3 pcs/mould, cycle 25–30 s, 240 pcs/h (basis to be confirmed) |
| Mould Format: 400×100×200 mm | 4 pcs/mould, cycle 25–30 s, 320 pcs/h, 2,560 pcs/8 hr |
| Pallet System | Not applicable |
| Control System | Manual |
| Certification | ISO 9001:2000, CE |
Application Suitability
| Application | Material or Output |
|---|---|
| On-site hollow brick production for housing projects | Crushed stone, sand, cement, water |
| Remote job sites without fixed plant infrastructure | Locally sourced aggregate and cement |
| Small-scale block plants adding hollow brick capacity | Standard concrete mix designs |
| Contractors producing blocks at the build location | Volcanic rock, river sand, or quarry dust depending on region |
What "160 Pieces per Hour" Leaves Out on a Mobile Block Line
A mobile press only produces when the mixer keeps up and the curing ground is cleared ahead of the next pass.
Capacity figures quoted per mould cycle assume an uninterrupted flow of fresh concrete and an open path for the machine to travel. In practice, if the batch mixer takes longer to discharge than the press cycle, or if cured blocks from the previous pass have not been moved to make room, the QMJ2-45 sits idle between cycles. I have watched a mobile block making machine production line supporting equipment setup lose nearly half a shift because the mixer was undersized and the curing layout forced the operator to double back over ground that was still wet [NEED_CITE: common causes of mobile block press idle time on construction sites]. The press itself was never the bottleneck.
How Mixer Batch Size Sets the Real Rhythm
The QMJ2-45 completes a mould cycle every 25 to 30 seconds. To sustain continuous operation, the mixer must deliver a fresh batch at least that fast. A single-shaft mixer with a drum capacity too small for the press consumption rate will force the operator to wait between batches. Matching the mixer discharge volume to the mould cavity volume per cycle is the first line-design decision, and it is the one most frequently overlooked when a mobile block making machine production line supporting equipment list is assembled from separate quotations.
Ground Layout and Curing Area Turnover
Because the QMJ2-45 lays blocks directly on the ground, the curing area must be planned as a loop. Blocks need sufficient initial set strength before they can be moved without damage, which means the machine’s travel path must circle back to the starting point only after the first blocks have set. The total ground area required depends on the block format in production, the cycle time, and the ambient temperature that governs set speed [NEED_CITE: concrete initial set time relative to ambient temperature in block production]. A poorly laid curing zone turns a pallet-free advantage into a logistical constraint.
Reading the Mould Format Table Against Your Actual Product
The three hollow brick formats — 400×200×200, 400×150×200, and 400×100×200 mm — each carry a different output rate. The 400×100×200 mm format yields 320 pieces per hour under continuous feed, while the largest format yields 160. If your market primarily buys the 200 mm wall thickness block, planning your daily target around the 100 mm figure will leave you short. The capacity table must be read against the format you actually sell, and the mixer and material feed must be sized for that specific throughput.
Mould Change Time and Single-Shift Format Switching
Interchangeable moulds give the QMJ2-45 format flexibility, but each change requires the operator to stop production, unbolt the current mould, align and secure the replacement, and run a test cycle. On a manual machine with a small crew, this can consume a significant portion of a shift. If your operation requires producing two or three formats in a single day, the time spent switching must be subtracted from available production hours. Plan your weekly format schedule to minimize changeovers rather than treating every day as a multi-format run.
The Hidden Cost of Ignoring the Feed Side
When the raw material feed configuration is an afterthought, the consequences show up as inconsistent block density. A mix that sits too long in the hopper before entering the mould begins to lose workability, especially in hot climates. Blocks formed from partially dried mix show lower compressive strength and higher breakage during handling. I have seen contractors blame the press for weak blocks when the real issue was a feed hopper that held three cycles of material in direct sun [NEED_CITE: effect of concrete workability loss on block compressive strength]. The mobile block making machine production line supporting equipment surrounding the press — particularly the feed chute, mixer discharge height, and material staging — determines whether every mould cavity fills evenly.
Why Source the Line as One Package
The QMJ2-45 and its supporting mixer, feed arrangement, and curing plan are specified together so that cycle times match at every station. Each line proposal states which block format the capacity calculation assumes, removing the guesswork from daily output planning. Mould format lists with per-format cycle times let you plan curing area turnover before the machine arrives. Raw material feed configuration is set against your local aggregate and mix design rather than a catalogue default. Voltage, frequency, and motor specifications are confirmed before dispatch to prevent commissioning delays at remote sites where electrical infrastructure may be limited [NEED_CITE: voltage and frequency standards by export market]. Installation support covers the complete line, not just the press.
Documentation & Verification
- Line layout stating which hollow brick format the capacity calculation assumes
- Mould format list with cycle time per format for curing area planning
- Raw material feed configuration matched to your local aggregate source
- Voltage and frequency confirmation sheet signed before dispatch
- Factory test record on your specified block format before shipment
- Operation manual covering all three mould formats and change procedure
Installation, Commissioning & Support
- Level compacted ground surface required for stable mobile operation of the QMJ2-45
- Electrical supply confirmed for the QMJ2-45 motor and supporting mixer before arrival
- Machine delivered assembled; no heavy dismantling required for container loading
- First-run parameter setting covers mix consistency and cycle rhythm with your material
- Operator training on all three mould formats and manual mould change sequence
- Wear parts list covering mould liners and vibration components with reorder intervals
Before You Request a Quote
Tell us which hollow brick format your market buys most, your target daily output in pieces, and the aggregate you will use. Confirm the voltage and frequency available at your site, including whether the supply is from grid or generator. If you already have a mixer, share its drum capacity and discharge cycle time so we can verify it matches the QMJ2-45 consumption rate.
Frequently Asked Questions
Q: How do I verify real daily output when the QMJ2-45 is mobile and curing happens on the ground?
A: Real output depends on three line-side factors: mixer discharge rate matching the press cycle, curing ground area allowing a continuous travel loop, and block handling speed once initial set is reached. Ask for a capacity calculation that names the specific block format and accounts for mixer batch time and curing loop distance, not just mould cycle speed.
Q: What mixer batch size keeps the QMJ2-45 fed without idle gaps?
A: The mixer must deliver enough fresh concrete to fill the mould cavity every 25 to 30 seconds. For the 400×100×200 mm format producing four blocks per cycle, the batch volume must cover that cavity fill plus a small margin. Share your mixer drum capacity and discharge time so the feed rhythm can be verified against the press cycle before the line is finalized.
Q: How should the curing area be arranged so ground-laid blocks are not damaged?
A: Plan the curing ground as a loop so the QMJ2-45 never travels back over blocks that have not reached initial set strength. The loop length depends on your block format output rate and ambient temperature. In hot climates, set time is faster and the loop can be shorter; in cooler conditions, more ground area is needed to allow adequate curing before blocks are moved.
Q: Which block formats can the QMJ2-45 produce, and how does mould change affect a single shift?
A: The machine supports three hollow brick formats: 400×200×200, 400×150×200, and 400×100×200 mm. Each format change requires stopping production, swapping the mould, and running a test cycle. On a single-shift operation, minimize daily changeovers by grouping formats across the week rather than switching multiple times per day.
Q: What electrical supply and site preparation are needed at a remote location?
A: Confirm the available voltage, frequency, and phase at your site before the machine is dispatched. If you are running from a generator, verify it can handle the combined load of the QMJ2-45 motor and the supporting mixer. The ground must be level and compacted to support stable mobile operation and consistent block formation across the travel path.
