Workflow-Matched Sizing — every QMY4-30 output figure here states the block format it assumes, so the mixer, feeder and curing area are scaled to what you actually produce on site.
Technical Specifications
| Parameter | Value |
|---|---|
| Model | QMY4-30 |
| Product Type | Mobile Concrete Block Making Machine |
| Rated Power | 5 kW |
| Overall Dimensions (L×W×H) | 1200 × 1200 × 1100 mm |
| Net Weight | 950 kg |
| Cycle Time | 30 seconds |
| Hourly Output | 480 pcs/h (basis: 400×200×200 mm hollow block, 4 pcs/mould) |
| Hourly Output | 600 pcs/h (basis: 400×150×200 mm hollow block, 5 pcs/mould) |
| Hourly Output | 840 pcs/h (basis: 400×100×200 mm hollow block, 7 pcs/mould) |
| Daily Output | 3,840 pcs/8h (basis: 400×200×200 mm hollow block) |
| Daily Output | 4,800 pcs/8h (basis: 400×150×200 mm hollow block) |
| Daily Output | 6,720 pcs/8h (basis: 400×100×200 mm hollow block) |
| Mould Format | Hollow block, solid brick (changeable moulds) |
| Raw Materials | Cement, sand, crushed stones, slag |
| Assembly State | Mobile, egg-laying (on-site production without fixed plant) |
| Automation Level | Manual / semi-automatic (operator-assisted) |
| Pallet Size | Not applicable (mobile egg-laying type) |
Application Suitability
| Application | Material or Output |
|---|---|
| On-site housing project production | Hollow and solid blocks laid directly on prepared ground |
| Small-scale block plant start-up | 400×200×200 mm hollow blocks from cement, sand and crushed stone |
| Phased development contractor | Multiple block formats across different site locations |
| Rural or remote building sites | Egg-laying production without fixed plant infrastructure |
Why the Mixer Matters More Than the Press
The QMY4-30 cycle is 30 seconds, but if your mixer cannot deliver a fresh batch in that same window, the press sits idle and your real daily output collapses.
I have walked onto Middle East sites where a mobile block making machine production line was quoted at impressive hourly numbers, yet the contractor paired it with an undersized pan mixer. The operator spent half the shift waiting for concrete, and the other half rushing to keep up — producing blocks with inconsistent density because the mix had already begun to set before reaching the mould. The machine was never the bottleneck; the supporting stations were. [NEED_CITE: mixer sizing relative to press cycle time in concrete block production]
Matching Feed, Mix and Lay in One Rhythm
A mobile block making machine production line built around the QMY4-30 must treat the mixer and feeder as part of the same cycle, not separate purchases. The 5 kW rated power keeps the press compact and site-friendly, but the upstream equipment still needs to deliver a homogeneous batch every 30 seconds. When the feeding rhythm matches the laying rhythm, the operator simply moves the machine forward and the next batch is ready — no dead time, no half-set concrete forced into moulds.
Eliminating the Fixed-Plant Overhead
The egg-laying design means blocks are produced directly on a level concrete floor without pallets, curing racks or conveyor returns. This removes the entire pallet circulation loop that a stationary plant requires. For a contractor producing 400×200×200 mm hollow blocks on a housing site, the curing workflow is simply marking off a section of floor and letting blocks cure in place. The 1200 × 1200 × 1100 mm footprint and 950 kg net weight allow the machine to be moved between locations as the project phases progress. [NEED_CITE: on-site egg-laying block production without pallet infrastructure]
Reading the Numbers That Actually Matter
The 30-second cycle time is the anchor for the entire line. At four pieces per mould for 400×200×200 mm hollow blocks, that yields a rated 480 pcs/h and 3,840 pcs per eight-hour shift. Switch to 400×100×200 mm hollow blocks at seven pieces per mould and the same cycle delivers 840 pcs/h and 6,720 pcs per shift — a meaningful difference when you are scheduling brickwork crews downstream. The changeable mould system lets the same press cover hollow blocks and solid bricks, but each format switch requires a realistic time allowance that should be factored into your daily plan rather than ignored.
What Happens When the Line Is Not Matched
The most common failure I see on sites is not the press breaking down — it is the supporting equipment creating invisible bottlenecks. A mixer that is too small means the operator shortens the vibration cycle to keep up, and block strength drops below what the structural drawings require. A feeding station that delivers inconsistent volumes means some moulds are underfilled and blocks break during handling. These problems do not show up in a factory test; they appear on the third day of production when the crew is tired and the schedule is already behind. [NEED_CITE: block strength inconsistency from mismatched upstream equipment]
Why This Supplier Approaches the Line Differently
Block machinery is the single focus here, so the QMY4-30 is never sold as a standalone press disconnected from its supporting workflow. The machine, mould, feeder and mixer are specified as one matched system based on your target block format and local aggregate. Mould design covers the formats your market actually sells, including custom drawings when your project calls for a non-standard size. Configuration is set against your real mix design and site conditions — I have rejected shipments when the aggregate sample from a Gulf site showed clay content too high for a standard vibration setting, and adjusted parameters before the machine left the factory. Automation level is selectable, so you can start with operator-assisted production and expand later.
Documentation & Verification
- Line layout and capacity calculation stating the block format assumed for each output figure
- Machine specification sheet with cycle time per mould configuration
- Mould drawing and format list confirming which block sizes ship with the quotation
- Voltage and control language confirmation signed off before production
- Factory test record run on your specified block format before dispatch
- Operation and maintenance manual with wear parts list
Installation, Commissioning & Support
- Level concrete floor required as production surface; no fixed foundation for the 950 kg mobile unit
- 5 kW power supply with dedicated circuit; voltage and frequency confirmed to your local grid before shipment
- Machine ships assembled; mould changes performed on site with basic hand tools
- First-day commissioning covers vibration adjustment to your local aggregate and mix design
- Operator training includes cycle rhythm, mould change procedure and daily maintenance checkpoints
- Wear parts and replacement mould list provided at delivery for long-term supply continuity
Before You Request a Quote
To configure the QMY4-30 and its supporting line correctly, send the block formats your project requires, the daily output you need per format, a sample or description of your local sand and aggregate, and your site voltage and frequency. If you already have a mixer or feeding equipment on site, include the model and capacity so the line can be matched around what you own.
Frequently Asked Questions
Q: How is daily output verified per block format, and what happens when the format changes?
A: Each output figure is tied to a specific block size and mould cavity count. The QMY4-30 produces 3,840 hollow blocks per eight-hour shift at 400×200×200 mm, and 6,720 at 400×100×200 mm. When you switch formats, the mould change takes a realistic portion of the shift, and the new cycle output must be recalculated — the hourly number is never the same across all formats.
Q: What supporting equipment must be sized around the 30-second cycle?
A: The mixer must deliver a fresh batch every 30 seconds to keep the QMY4-30 running continuously. The raw material feeder must supply the mixer at the same rate. The curing area must accommodate the daily output laid on the floor, with enough marked space so freshly produced blocks are not disturbed before initial set.
Q: What raw material mix and local aggregate are needed for consistent block strength?
A: The QMY4-30 works with cement, sand, crushed stone and slag, but the mix ratio must be adjusted to your local aggregate characteristics. High clay content in desert sand, common across Gulf sites, requires either washing or a modified vibration setting. We request an aggregate sample before final configuration to match vibration and moisture to what you actually source.
Q: How are mould changes handled on site, and what is the realistic time cost?
A: Moulds on the QMY4-30 are changeable with basic tools, allowing hollow block and solid brick formats on the same machine. A format switch requires stopping production, removing the current mould, fitting the new one and running a test cycle. This takes a meaningful portion of a shift, so planning production runs by format in bulk — rather than switching daily — keeps output closer to the rated figures.
Q: What voltage and frequency must be confirmed before shipment?
A: The QMY4-30 is rated at 5 kW, and the supply voltage and frequency must match your local grid before the machine enters production. If the site runs on generator power, the generator capacity must account for motor start-up surge. We confirm voltage, frequency and any control display language requirements before the machine ships so commissioning is not delayed on arrival.
