Description
Mould-Matched Sizing — the QMY4-30 mobile block machine is configured against the hollow block format your market actually sells, with output stated per dimension rather than a single misleading cycle figure.
Technical Specifications
| Parameter | Value |
|---|---|
| Model | QMY4-30 |
| Product Type | Mobile Pallet-free Cement Block Making Machine |
| Mould Vibration Method | Mould box excitation |
| Demold Method | Hydraulic |
| Molding Cycle | 25–30 seconds |
| Total Power | 5.95 kW |
| Pallet Requirement | Pallet-free (mobile egg-laying type) |
| Productivity (400×200×200 mm hollow block) | 4 pcs/mould, 480 pcs/hour, 3,840 pcs/8 hr shift |
| Productivity (400×150×200 mm hollow block) | 5 pcs/mould, 600 pcs/hour, 4,800 pcs/8 hr shift |
| Productivity (400×100×200 mm hollow block) | 7 pcs/mould, 840 pcs/hour, 6,720 pcs/8 hr shift |
| Automation Level | Manual mobile operation |
| Voltage & Frequency | Configurable to buyer’s site supply (basis to be confirmed) |
| Control System | Confirmed per buyer’s voltage and language requirement (basis to be confirmed) |
| Hydraulic Pressure | Matched to mould size and mix design (basis to be confirmed) |
| Vibration Force | Tuned to local aggregate and block strength target (basis to be confirmed) |
| Overall Dimensions | Confirmed at order based on mould format (basis to be confirmed) |
| Net Weight | Confirmed at order based on configuration (basis to be confirmed) |
| Mould Change Time | Dependent on format and operator familiarity (basis to be confirmed) |
Application Suitability
| Application | Material or Output |
|---|---|
| On-site hollow block production at remote construction projects | Crushed stone, sand, cement, water — laid directly on graded ground |
| First-stage block plant for entrepreneurs with limited capital | 400×200×200 mm and 400×150×200 mm hollow blocks as primary formats |
| Satellite production for concrete product manufacturers | Site-specific block runs where transporting pallets and racks is impractical |
| Block manufacturing in mountainous, hilly or uneven terrain | Pallet-free egg-laying operation eliminating the need for a fixed curing yard |
| Coastal and desert area construction supply | Local aggregate with adjusted cement ratio, verified by sample testing before configuration |
What "480 Blocks per Hour" Actually Means for Your Site
The QMY4-30 produces 480 hollow blocks per hour only when running the 400×200×200 mm format at a 25–30 second moulding cycle — switch the mould and the number changes entirely.
Capacity figures on mobile block machines are frequently quoted as a single cycles-per-hour value without naming the block format behind it. I have stood on sites in West Africa where the machine was bought against one number, and the daily tally told a different story because the local market demanded a narrower block than the sample calculation assumed. With the QMY4-30, the mobile block machine specifications are broken down across three standard hollow block formats so you can match the machine to the product your buyers actually pay for. [NEED_CITE: concrete block dimensional standards by regional market]
Honest Output Breakdown by Block Format
The moulding cycle sits between 25 and 30 seconds depending on mix consistency and operator rhythm. At 400×200×200 mm, each cycle produces four blocks; at 400×150×200 mm, five; and at 400×100×200 mm, seven. These figures form the basis for the mobile block machine specifications listed in the table above, and they shift if your aggregate requires a longer vibration hold. This is why a sample test of your local sand and stone comes before any capacity commitment.
Mould Selection Against Your Market
A mobile block machine is only as flexible as the moulds it can accept. The QMY4-30 uses mould box excitation, meaning the vibration energy is directed into the mould cavity itself rather than through the frame. This matters when you move between hollow block formats because the force distribution must match the cavity volume — a smaller 100 mm width block needs less force spread across a narrower area. Custom mould drawings can be supplied if your market sells a format outside the three standard sizes listed here. [NEED_CITE: mould vibration force distribution principles for concrete block forming]
Reading the Specs That Decide Block Strength
Hydraulic pressure and vibration force together determine the density and compressive strength of each block. The QMY4-30 uses hydraulic demolding, which controls the release speed and prevents early-stage cracking. Total power of 5.95 kW covers both the vibration motor and the hydraulic pump — a figure you can verify against your on-site generator capacity before the machine ships. The pallet-free design means the ground surface becomes your curing platform, so compaction and leveling of the working area directly affect the dimensional tolerance of the blocks you produce. Molding cycle duration ties back to your mix: a drier mix with well-graded aggregate releases faster, while a wetter mix needed for high-clay sand extends the cycle and lowers hourly output.
The Cost of Skipping the Material Sample Step
I once commissioned a mobile block machine where the buyer ordered against catalogue output, only to find that the local sand carried a clay content high enough to swallow the vibration energy. The blocks came out soft, the cycle stretched well past the rated window, and daily output dropped to a fraction of the expected tally. Workers stood idle waiting for blocks to set before the machine could advance. That site eventually sent aggregate samples, adjusted the cement ratio, and recovered usable output — but weeks of production were lost. [NEED_CITE: effect of clay content in sand on concrete block compressive strength]
Why Configuration Matters More Than the Machine Nameplate
Each QMY4-30 is matched against your target block format and local aggregate before it leaves the factory, rather than shipped as a catalogue default. Mould design covers the hollow block dimensions your market sells, with custom drawings available when standard sizes do not match. Machine, mould, and ground conditions are specified together because pallet-free operation ties output quality directly to your site surface. Voltage, frequency, and control language are confirmed in advance so commissioning is not delayed by a mismatch at arrival. Wear parts and replacement moulds are listed at order, meaning the first maintenance cycle does not halt your production line.
Documentation & Verification
- Factory test record running your specified hollow block format before dispatch
- Mould drawing and format list confirming cavity dimensions match your market
- Voltage, frequency, and control language confirmation sheet signed before shipment
- Hydraulic and electrical schematic for your on-site maintenance team
- Wear parts list with mould replacement intervals for your production schedule
- Packing photographs and customs documentation support for your import process
Installation, Commissioning & Support
- Ground leveling and compaction guidance for pallet-free egg-laying operation
- Power supply check against the 5.95 kW total draw before generator commitment
- On-site commissioning with moulding cycle verification against your local mix
- Operator training on hydraulic demolding rhythm and mould box excitation handling
- Mould change procedure walkthrough covering your ordered format set
- Wear parts and mould inventory plan to cover the first replacement cycle
What to Include in Your Inquiry
To size the QMY4-30 correctly, send your target hollow block dimensions and the daily output you need to meet project demand. Include a sample of your local sand and aggregate so the mix can be tested against the mould box vibration before configuration is locked. Confirm your site voltage, frequency, and the language your operators need on the control panel so the machine arrives ready to run.
Frequently Asked Questions
Q: How is the QMY4-30 capacity calculated for each block format?
A: The molding cycle of 25–30 seconds is applied to the number of cavities per mould for each format. A 400×200×200 mm hollow block yields four pieces per cycle, giving 480 per hour. Shift the format to 400×100×200 mm and the same cycle produces seven pieces, raising output to 840 per hour. These figures assume consistent mix feed and ground conditions.
Q: Can custom moulds be supplied if my market needs a non-standard block size?
A: Yes. Mould drawings can be produced to your dimensions, provided the cavity layout fits the QMY4-30 mould box footprint. Send your block drawing with target dimensions and wall thickness, and the mould will be matched to the machine’s vibration force and hydraulic demolding stroke.
Q: What block strength is achievable, and how does the machine adapt to local aggregate?
A: Block strength depends on the combination of vibration force, hydraulic pressure, and your mix design. The mould box excitation directs energy into the cavity, and the hydraulic demolding controls release speed. Local aggregate samples are tested before configuration so the vibration hold time and pressure are set to your material, not a generic default.
Q: What ground conditions does pallet-free mobile operation require?
A: The surface must be compacted, leveled, and free of loose debris so blocks are laid evenly. Without pallets and curing racks, the ground itself becomes the curing platform. A concrete slab or well-graded hardstand gives the most consistent dimensional results, while soft or uneven soil introduces tolerance issues.
Q: How long does a mould change take on the QMY4-30?
A: Mould change time depends on operator familiarity and the format difference. The manual mobile design keeps the process straightforward, but the first change on a new format takes longer than subsequent swaps. Plan your production schedule around format batches rather than changing moulds multiple times within a single shift.
