Description
Diesel-hydraulic control matched to your site — the QMR4-45 ships with pressure and cycle settings calibrated against your actual aggregate and target block format, not a generic factory default.
Technical Specifications
| Parameter | Value |
|---|---|
| Model | QMR4-45 |
| Product Type | Diesel Mobile Egg-Laying Block Making Machine |
| Overall Dimensions (L×W×H) | 2420×1320×1650 mm |
| Net Weight | 810 kg |
| Rated Power | 6 kW |
| Diesel Engine | 6 kW or 6–8 HP |
| Voltage & Frequency | 220 V / 380 V or configurable to client local supply |
| Control System | Manual / hydraulic with diesel engine; PLC available as an option |
| Moulding Cycle | 40–45 s |
| Pallet Requirement | None (egg-laying type) |
| Output Capacity | 3000 pcs/day based on 400×200×200 mm hollow block, 4 pcs/mould, 8-hour shift |
| Output Capacity | 3500 pcs/day based on 400×150×200 mm hollow block, 5 pcs/mould, 8-hour shift |
| Output Capacity | 4500 pcs/day based on 400×120×200 mm hollow block, 6 pcs/mould, 8-hour shift |
| Standard Mould Formats | Hollow block: 400×200×200 mm / 400×150×200 mm / 400×120×200 mm; other formats available via mould change |
| Automation Level | Semi-automatic / manual pallet handling |
| Assembly State | Fully assembled mobile unit |
| Warranty | 1 Year |
Application Suitability
| Application | Material or Output |
|---|---|
| On-site hollow block production for housing projects | Crushed stone, sand, cement and water mixed locally |
| Remote construction sites without reliable grid electricity | Diesel-powered operation independent of mains supply |
| First block plant for entrepreneurs entering the market | Low-investment entry with future automation station upgrades |
| Temporary production for infrastructure contractors | Mobile egg-laying format, no fixed plant or pallets required |
What "3000 Blocks per Day" Actually Means on a Real Job Site
Capacity figures only matter when the block format, cycle time and shift length behind them are spelled out.
I have watched contractors in Latin America receive a mobile block machine quoted at a single daily number, then discover on the first production run that the figure assumed a hollow block size their market does not buy. The QMR4-45 output is stated per format — 3000, 3500 or 4500 pieces per eight-hour shift depending on whether you are pressing 200 mm, 150 mm or 120 mm wide blocks. If your local demand centres on a different dimension, the cycle and mould count change, and the daily total must be recalculated before the machine leaves the factory [NEED_CITE: capacity calculation methodology for concrete block machines]. An automatic diesel egg-laying block machine PLC controlled configuration can lock that cycle consistency in from day one, provided the control language and voltage are confirmed before the control panel is wired.
How PLC Control Changes a Diesel-Powered Press
The standard QMR4-45 runs on a manual hydraulic circuit driven by a 6–8 HP diesel engine. Adding a PLC panel converts the press stroke, vibration duration and return sequence into repeatable programmed steps, so the operator no longer judges cycle timing by eye. For a crew producing blocks on a housing site where the mix may vary slightly from batch to batch, that repeatability keeps density and strength within a narrower band across the full shift.
The Upgrade Path From Manual to Semi-Automatic
A buyer who starts with the base manual configuration can later add a small batching hopper, a conveyor-fed mixer or a pallet-return loop without replacing the press itself. The diesel-hydraulic power unit remains the same; only the material-handling stations around it change. This is important for entrepreneurs who need to keep initial capital low but know their market will demand higher volumes within a year or two [NEED_CITE: typical automation upgrade stages for egg-laying block machines].
Reading the Specs That Decide Block Strength
The 6 kW diesel engine drives a hydraulic pump that supplies the pressing force; the vibration motor compacts the mix inside the mould cavity. Block density is the product of both — hydraulic pressure alone without sufficient vibration leaves air voids, while vibration without adequate pressure produces a block that crumbles on demoulding. The 40–45 second moulding cycle is the window in which these two forces must be balanced against your specific aggregate grading and cement ratio. Pallet-free egg-laying operation means the fresh block sits directly on the ground; if the sub-grade is uneven, the block base deforms before the concrete sets, so site preparation matters as much as the press settings. Voltage, when auxiliary electrical components are added, must match the local supply to avoid burning out control transformers during the first week of operation [NEED_CITE: hydraulic pressure and vibration matching for concrete block production].
The Cost of Skipping Voltage and Language Confirmation
I once shipped a small mobile block machine to Ecuador with the PLC display defaulted to Chinese. The local operator could not read a single menu item, and the first day of commissioning was lost entirely while we arranged a replacement screen and rewrote the firmware. The machine sat idle, the contractor paid for idle labour and the project schedule slipped. That single oversight — a ten-minute confirmation call before the control panel was closed — would have prevented the whole delay [NEED_CITE: PLC language and voltage verification procedures for exported machinery]. When the automatic diesel egg-laying block machine PLC controlled option is selected, display language, button labels and voltage rating must be locked in writing before the wiring loom is built.
Why Buyers Source This Machine Here
Block machinery is the single product focus, so the QMR4-45 press, mould and diesel-hydraulic power unit are specified together rather than assembled from mismatched suppliers. Moulds for the hollow block sizes your market actually sells are designed in-house, and custom formats can be produced from buyer drawings. Capacity calculations are stated per block format with cycle time and shift hours documented, not quoted as a single unqualified daily number. Configuration is set against the buyer’s local aggregate and mix design so that hydraulic pressure and vibration are matched before the machine ships. An upgrade path from manual through semi-automatic operation is available without replacing the core press.
Documentation & Verification
- Machine specification sheet listing the confirmed block format and per-format cycle time
- Mould drawing and format list matching the hollow block sizes ordered
- Voltage, frequency and PLC display language confirmation signed before wiring
- Factory test record showing block output on the agreed mould and cycle settings
- Hydraulic and electrical schematic for local maintenance teams
- Operation and maintenance manual with wear parts and mould replacement list
Installation, Commissioning & Support
- The 810 kg assembled unit is offloaded and positioned on a level concrete strip — no fixed foundation required
- Diesel engine oil, coolant and fuel lines are checked before first start; no external power needed for the base press
- Where PLC is fitted, the 220 V or 380 V control supply is verified against the local grid before the panel is energised
- First production run is supervised to confirm the 40–45 s cycle delivers the target block density on local aggregate
- Operator training covers mould change procedure and daily hydraulic hose inspection
- Wear parts list and mould replacement schedule are handed over with the maintenance manual
Before You Send an Inquiry
Tell us the hollow block dimensions your market sells and the daily volume you need to hit per eight-hour shift. Share a sample or description of the sand, crushed stone and cement you plan to use so the hydraulic pressure and vibration settings can be matched to your mix. Confirm the local voltage and frequency at the job site, and whether you need the control display in Spanish, Portuguese, French or another language — that one detail determines how fast the machine is running after it arrives.
Frequently Asked Questions
Q: How is daily output verified for each block format, and what does the calculation assume?
A: The quoted output of 3000, 3500 or 4500 pieces per day is based on an eight-hour shift and a 40–45 second moulding cycle on the specific hollow block size listed. If your target format differs, the mould cavity count and cycle time change, so the daily total is recalculated and documented before the order is confirmed.
Q: Can the QMR4-45 be upgraded from manual operation to a more automated setup later?
A: Yes. The diesel-hydraulic press is the same unit across configurations. Batching hoppers, mixer conveyors and stacking aids can be added as separate stations without replacing the core machine, letting you increase automation as demand grows.
Q: What voltage, frequency and control language options are confirmed before shipment?
A: Voltage is configurable to 220 V, 380 V or your local standard. Where a PLC panel is specified, display language and button labels are agreed in writing before the control wiring is built, so the operator can read every menu item from the first hour on site.
Q: How are hydraulic pressure and vibration matched to local raw materials?
A: Before production, we review your aggregate grading, cement type and target block strength. Hydraulic pressure and vibration duration are then set so the 40–45 second cycle produces the density your market requires, rather than shipping a catalogue default that may not suit your mix.
Q: What mould formats are available beyond the standard hollow block sizes?
A: The three standard hollow formats are 400×200×200 mm, 400×150×200 mm and 400×120×200 mm. Other block shapes and dimensions can be produced via custom moulds built to your drawings; lead time and cavity count depend on the format complexity and are confirmed during the quotation stage.
