Description
Single-focus machinery matching — every QMR4-45 configuration starts from the buyer’s target block format and local aggregate, not from a catalogue default.
Technical Specifications
| Parameter | Value |
|---|---|
| Model | QMR4-45 |
| Product Type | Mobile Concrete Block Making Machine |
| Overall Dimensions (L×W×H) | 1100 × 950 × 2100 mm |
| Net Weight | 810 kg |
| Molding Cycle | 30–45 s (basis to be confirmed per block format) |
| Power Source | Diesel engine / Petrol engine / Electric motor |
| Output Capacity | 2,560 pcs/day (basis not stated in source — confirm block format, material, and thickness) |
| Pallet Requirement | No pallet required (egg-laying type) |
| Mobility | Wheeled mobile frame |
| Basic Equipment | JZC350 or JQ350 diesel mixer; transport trolley |
| Brick Formats | Hollow block, solid block, paver brick, fly ash brick, concrete block |
| Automation Level | Manual / semi-manual operation |
| Warranty | 1 Year |
Application Suitability
| Application | Material or Output |
|---|---|
| On-site hollow block production for housing projects | Crushed stone, river sand, and cement blends |
| Small-scale solid brick runs for local masonry supply | Fly ash mixed with lime and aggregate |
| Paver brick production at contractor yards | Fine aggregate and cement for high-density formats |
| Remote construction sites without grid power | Diesel-powered operation with locally sourced mix |
| First-time block plant startups | Low-capital egg-laying production without pallet inventory |
What "2,560 Pieces per Day" Actually Means When Format Is Not Stated
A single output number without a block format attached is the fastest way to disappoint yourself on commissioning day.
I have watched buyers sign off on a capacity figure, then arrive at their site to find the mould they actually need cuts that number to a fraction. A hollow block takes longer to fill and vibrate than a small solid paver. The mix sticks differently, the cycle stretches, and the daily count drops. The machine is not at fault — the expectation was built on the wrong block type. When we discuss mobile block machine specifications, the first question I push back on is always which exact format you intend to run and for how many hours per shift [NEED_CITE: realistic daily output assumptions in block production].
Matching Mould Format to Your Market Before the Order Is Placed
The QMR4-45 covers hollow block, solid block, paver brick, and fly ash brick through interchangeable moulds, but each format carries its own cycle time and material behaviour. A hollow block requires a longer vibration window to settle the mix around the core pins, while a thin paver demands higher frequency to achieve surface density. Stating the target block format at inquiry stage ensures the mould drawing, vibration setting, and capacity calculation all align to what your market actually buys. This is how mobile block machine specifications move from a brochure claim to a number you can plan labour and materials around.
Power Source Selection Based on Real Site Conditions
Electric, diesel, or petrol — the choice is not about preference but about what your site can sustain. I once shipped a diesel unit to a region where the local fuel was heavily contaminated; the injector clogged every few hours. Switching to the electric variant with a generator would have saved the first two weeks of production. For remote job sites without reliable grid connection, the diesel or petrol engine keeps the QMR4-45 running independently. Where grid power exists but voltage fluctuates, confirming frequency and phase before production avoids motor burnout within the first week [NEED_CITE: voltage and frequency standards by export market].
Reading the Numbers That Matter for Block Density
The molding cycle of 30–45 seconds is a range, not a fixed value, and where your mix lands inside that range depends on aggregate grading and moisture. Finer fly ash blends flow faster and may reach the lower end of the cycle, while coarse crushed stone with low workability pushes toward 45 seconds. The egg-laying design eliminates pallet cost entirely — the machine lays blocks directly onto a prepared concrete floor, which simplifies curing logistics for first-time operators. At 810 kg net weight with a wheeled frame, the QMR4-45 repositions across a job site without a forklift, letting contractors follow the build as walls go up. Vibration force and the weight of the machine itself together determine how tightly the mix compacts inside the mould box, directly influencing block strength at demoulding.
The Cost of Skipping the Mix-Design Conversation
A buyer once sent us photos of crumbling hollow blocks after the first week. The local sand was volcanic ash with high fines content, and the standard vibration setting we calibrated for river sand could not consolidate it. Blocks broke at the corners during handling, and the daily yield dropped well below expectation because half the output was rejected. Had the mix been shared before the machine left our workshop, we would have adjusted the vibration frequency and recommended a longer cycle. This is a recurring pattern in mobile block production: the machine is built for one material profile and runs against another [NEED_CITE: aggregate variability effects on block strength].
Why Buyers Source This Machine Through Our Line
Block machinery is our single focus, which means the QMR4-45 is specified as one system — machine, mould, mixer, and trolley — rather than assembled from mismatched suppliers. We set the configuration against your actual mix design and the block dimensions your local construction market demands, including custom mould drawings when standard formats do not match. Automation level is selectable, so you can begin with manual pallet-free operation and move to a more automated line later without replacing the core press. Our documentation includes a capacity calculation that names the block format behind every output number, so there is no gap between what was quoted and what arrives at your site.
Documentation & Verification
- Capacity calculation sheet stating daily output per block format and assumed mix proportions
- Mould drawing and format list confirming dimensions before production begins
- Voltage, frequency, and control language confirmation for the electric variant
- Factory test record run on a mix profile matching your local aggregate
- Wear parts and mould replacement list with individual lead times
- Operation and maintenance manual covering daily greasing points and cycle adjustment
Installation, Commissioning & Support
- Flat concrete floor required for egg-laying operation, minimum 100 mm thickness to bear 810 kg machine weight during vibration
- Electric variant needs confirmed voltage and dedicated circuit matching motor rating before energising
- Machine arrives on wheeled frame; position by hand at production location with no crane required
- First-day commissioning includes mould fitment check and vibration timing adjustment to your mix
- Operator training covers mould changeover sequence and daily belt and bearing inspection
- Wear parts inventory list provided so first replacements are on site before production starts
What to Include in Your First Inquiry
To give you a capacity number you can rely on, tell us the exact block dimensions your market sells, the daily volume you need to hit, and the raw materials available within transport distance of your site. If you are considering the electric variant, share your local voltage and frequency so we lock that in before the motor is ordered. Mention whether you already have a concrete floor prepared for curing or whether that is still part of your site setup.
Frequently Asked Questions
Q: How is daily output calculated for each block format on the QMR4-45?
A: Output depends on the block format, mix workability, and shift length. A small solid brick cycles faster than a large hollow block, so the daily count differs between them. We provide a capacity sheet that states the assumed format, cycle time, and mix behind every number so your expectation matches the machine’s actual behaviour on your material.
Q: Which mould formats are available, and how long does a change take?
A: The QMR4-45 accepts moulds for hollow block, solid block, paver brick, and fly ash brick. Mould change is a manual operation involving bolt removal and re-alignment of the mould box on the frame. We supply the format list and changeover procedure so your crew can plan the swap within a scheduled break rather than losing a full shift.
Q: What happens if my local aggregate differs from the standard test mix?
A: Vibration settings and cycle timing calibrated for one aggregate may not consolidate a different material correctly, leading to low block strength or surface cracking. Share your local sand, stone, or fly ash source at inquiry stage so we adjust the vibration parameters and recommend a suitable mix ratio before the machine ships.
Q: What voltage options exist for the electric variant?
A: The electric QMR4-45 can be configured to match your site supply, but voltage and frequency must be confirmed before the motor is sourced. Running a 380V motor on a 415V supply shortens its life, and a 60Hz motor on a 50Hz grid loses speed and torque. Confirm these values early to avoid commissioning delays.
