Single-focus line engineering — the QMY4-30 mobile block machine is specified alongside its mixer, material feed, and curing workflow so the press cycle is never left waiting for the next batch.
Technical Specifications
| Parameter | Value |
|---|---|
| Model | QMY4-30 |
| Product Type | Mobile Concrete Block Making Machine |
| Rated Power | 5 kW |
| Molding Cycle Time | 30 seconds |
| Overall Dimensions (L×W×H) | 1200 × 1200 × 1100 mm |
| Net Weight | 950 kg |
| Raw Materials | Cement, sand, crushed stones, slag |
| Mould Format | Changeable for hollow block and solid brick |
| Output Capacity | 480 pcs/h based on 400×200×200 mm hollow block, 4 pcs/mould |
| Output Capacity | 600 pcs/h based on 400×150×200 mm hollow block, 5 pcs/mould |
| Output Capacity | 840 pcs/h based on 400×100×200 mm hollow block, 7 pcs/mould |
| Daily Output | 3840 pcs/8h based on 400×200×200 mm hollow block |
| Daily Output | 4800 pcs/8h based on 400×150×200 mm hollow block |
| Daily Output | 6720 pcs/8h based on 400×100×200 mm hollow block |
| Automation Level | Semi-automatic (mobile / egg-laying type) |
| Hydraulic Pressure | Not applicable (vibration-only forming) |
| Pallet Size | Not applicable (produces directly on ground) |
| Assembly State | Fully assembled, mobile unit |
Application Suitability
| Application | Material or Output |
|---|---|
| On-site production for housing projects | Crushed stone and cement hollow blocks laid directly on compacted ground |
| Small-scale block manufacturing | Sand and cement solid bricks for local sale |
| Remote development sites | Slag-based mix designs for hollow blocks without fixed plant infrastructure |
What "Cycles per Hour" Means When the Mixer Cannot Keep Up
A 30-second moulding cycle only delivers rated output if material arrives at the hopper before the next press stroke begins.
On a mobile block machine production line, the press itself is rarely the bottleneck. The constraint almost always appears upstream — a mixer that takes two minutes per batch while the press idles every third cycle, or a wheelbarrow feed system that cannot match the hopper demand during continuous operation. I have watched operators on project sites wait for the next mix while the machine sits powered on, burning through fuel on a generator that was sized for the press alone. The daily output figure quoted in any brochure assumes uninterrupted material flow, and that assumption breaks the moment the supporting stations are left unspecified [NEED_CITE: material feed rate matching for continuous block production].
How the 30-Second Cycle Sets the Pace for Every Upstream Station
The QMY4-30 completes a moulding cycle in 30 seconds, producing 4 to 7 blocks per stroke depending on the format. That pace demands a mixer capable of delivering a fresh batch to the hopper within the same window. When the mobile block machine production line is planned as a complete workflow rather than a standalone press purchase, the mixer capacity, water supply hose length, and aggregate stockpile distance are all calculated against this cycle time so that material shortage does not interrupt forming.
Ground Conditions and Curing Area That Match an Egg-Laying Machine
An egg-laying mobile block machine production line requires a flat, compacted surface — poured concrete is not mandatory, but loose soil will cause blocks to crack or tilt during the next pass. The curing footprint must accommodate the full daily output spread across the ground: at 6720 pcs/8h based on 400×100×200 mm hollow blocks, that is a significant area that needs protection from direct sun and rain during the initial set. Planning the curing layout before the machine arrives prevents the common situation where blocks are stacked too early and collapse under their own weight [NEED_CITE: curing conditions for cement-based block strength development].
Specifying the Numbers That Actually Determine Block Quality
The 5 kW total power draw tells you what generator to bring to an off-grid site — undersizing it causes voltage sag that weakens the vibration motor and produces low-density blocks. The 950 kg machine weight means it can be repositioned by two workers or a small forklift, but it also confirms the unit relies on vibration alone without hydraulic clamping pressure, so the mix design must compensate with adequate cement content for structural strength. The changeable mould system covering three hollow block formats means the curing area must be planned for the largest daily footprint of whichever format the buyer produces most. Every one of these parameters connects to a decision that happens before the machine is switched on.
The Cost of Leaving Supporting Equipment Unspecified
Buyers who order the press alone and source the mixer locally often find that a generic construction mixer cannot match the feed rate the QMY4-30 demands, cutting effective output well below the rated figure. Ground that has not been compacted causes the egg-laying machine to settle unevenly, producing blocks with one thin wall that fails compressive testing. When the curing area is too small for the daily spread, blocks are moved before achieving initial set and arrive at the customer with corner damage. Each of these problems traces back to a station that was never included in the original quotation [NEED_CITE: common causes of block strength failure in mobile production].
Why This Line Is Specified as a Complete System
Block machinery is the single focus here, so the QMY4-30 is never quoted as an isolated press — the mixer, material feed arrangement, and curing workflow are part of the same configuration document. The line is set against the buyer’s actual mix design and local aggregate rather than a catalogue default, because sand with high clay content changes the water demand and vibration response. Mould formats are selected for what the buyer’s market actually sells, with custom drawings available when standard sizes do not match local building codes. Voltage, frequency, and control language are confirmed and documented before production starts, so commissioning is not delayed by a mismatch discovered after the container arrives.
Documentation & Verification
- Line layout with capacity calculation stating the block format assumed for each output figure
- Machine specification sheet matching the QMY4-30 as-delivered configuration
- Mould drawing and format list covering all three hollow block sizes
- Voltage and control language confirmation signed before production
- Factory test record run on the buyer’s confirmed block format
- Operation manual covering daily maintenance and mould change procedure
Installation, Commissioning & Support
- Ground compaction guidance specifying surface flatness for the 1200 × 1200 mm machine footprint
- Generator sizing recommendation based on the 5 kW total draw with starting surge allowance
- Machine arrives fully assembled — no on-site frame construction required
- First-run cycle timing verified against the 30-second target with the buyer’s actual mix
- Mould change training covering all three hollow block formats installed on site
- Wear parts list provided with recommended reorder intervals for vibration components
Before You Request a Quotation
Provide your target block format and the daily volume your project or market requires. Confirm your local aggregate type — river sand, crushed stone, or slag — and whether you have a sample available for mix design testing. State your site voltage and frequency, and describe the ground conditions where the machine will operate so the curing area can be planned alongside the equipment layout.
Frequently Asked Questions
Q: How is the output capacity calculated, and which block format is each figure based on?
A: Each output figure is tied to a specific block format and mould cavity count. The QMY4-30 produces 480 pcs/h based on 400×200×200 mm hollow blocks with 4 cavities per mould, 600 pcs/h based on 400×150×200 mm blocks with 5 cavities, and 840 pcs/h based on 400×100×200 mm blocks with 7 cavities. Daily figures assume an 8-hour shift with uninterrupted material feed.
Q: What supporting equipment is needed to keep the QMY4-30 running at its stated cycle time?
A: A mixer that delivers a fresh batch within the 30-second cycle window, a material feed system positioned to refill the hopper without manual delay, and a curing area large enough to hold the full daily output. The line layout specifies each station so the press is never left idle between cycles.
Q: What ground surface and curing area does an egg-laying mobile machine require?
A: The surface must be flat and compacted — loose soil causes blocks to tilt or crack. The curing area must accommodate the daily spread of blocks with protection from direct sun and rain during initial set. A layout plan is provided with the quotation so the site can be prepared before the machine arrives.
Q: How do voltage and frequency specifications affect commissioning after delivery?
A: The QMY4-30 motor is wound for a specific voltage and frequency. If these are not confirmed before production, the machine may not run on arrival or may operate with reduced vibration force, affecting block density. Voltage, frequency, and control language are documented and signed off before manufacturing begins.
Q: What is the workflow from raw material to cured block when no pallet system is involved?
A: Raw materials are mixed and fed into the QMY4-30 hopper. The machine moves forward after each cycle, laying blocks directly on the ground. Blocks remain in place until initial set is achieved, then the area is cleared for the next production pass. This eliminates pallet investment but requires sufficient curing space to maintain continuous output.
