Description
Block machinery as a single focus — the QTJ4-24 is specified as one matched system of machine, mould, pallet and handling rather than assembled from separate suppliers, so every output figure ties back to a real block format and your local aggregate.
Technical Specifications
| Parameter | Value |
|---|---|
| Model | QTJ4-24 |
| Product Type | Semi-Automatic Concrete Block Making Machine |
| Overall Dimensions (L×W×H) | 2060 × 1730 × 2580 mm |
| Molding Cycle | 24 s |
| Vibration Frequency | 4200 r/min |
| Vibration Force (Exciting Power) | 35.5 kN |
| Rated Power | 14.25 kW |
| Mixer Model | JQ350 |
| Pallet Size | 850 × 450 × 20 mm |
| Net Weight | 1800 kg |
| Automation Level | Semi-automatic |
| Stacking Method | Manual with trolley |
| Output Capacity (390×190×190 mm hollow block) | 480 pcs/h (4 pcs/mould) |
| Output Capacity (400×150×200 mm hollow block) | 600 pcs/h (5 pcs/mould) |
| Output Capacity (240×115×53 mm solid brick) | 2100 pcs/h (18 pcs/mould) |
| Daily Output – 8 h shift (390×190×190 mm) | 3800 pcs |
| Daily Output – 8 h shift (400×150×200 mm) | 4800 pcs |
| Daily Output – 8 h shift (240×115×53 mm) | 17000 pcs |
| Applied Products | Concrete hollow blocks (8 inch, 6 inch), solid bricks, pavers (basis to be confirmed for full format range) |
| Raw Materials | Crushed stones, sand, cement, dust, fly ash |
| Hydraulic Pressure | Value not stated in source — confirm MPa rating |
| Control System | Type not stated in source — confirm PLC or relay logic |
| Voltage & Frequency | Not stated in source — confirm target market specification |
| Mould Change Time | Not stated in source — confirm |
| Language Options | Not stated in source — confirm |
| Assembly State | Fully assembled, nude packing in 20GP container |
| Standards | CE |
Application Suitability
| Application | Material or Output |
|---|---|
| Small-scale hollow block plant | 390×190×190 mm and 400×150×200 mm blocks from crushed stone, sand, cement and fly ash |
| On-site production for building contractors | Solid bricks (240×115×53 mm) using locally sourced aggregate delivered to the construction site |
| First block plant for entrepreneurs | Hollow blocks and solid bricks with semi-automatic operation and manual pallet trolley handling |
| Format expansion for existing producers | Switching between hollow block, solid brick and paver moulds on the same machine |
Why "Pieces per Hour" Means Nothing Without the Block Format Attached
Every QTJ4-24 block machine specifications figure on this page is tied to a named block size and a stated mould count — not a single headline number.
I have watched buyers sign off on a capacity number, take delivery, and then discover that the figure was measured on a format they never planned to produce. The daily shortfall compounds across an entire shift. On the QTJ4-24, 480 pcs/h applies only to the 390×190×190 mm hollow block at four pieces per mould. Switch to the smaller solid brick at eighteen per mould and the same cycle delivers 2100 pcs/h. [NEED_CITE: block machine capacity measurement standards and format dependency]. The semi-automatic block machine how to choose conversation has to start with the format you actually sell, not the one that produces the biggest number on the quotation.
Matching the QTJ4-24 to the Block Your Market Actually Buys
The QTJ4-24 block machine specifications show three reference outputs, but your real daily number depends on the mix you run, the pallets you cure on, and how fast your team cycles the trolley. The 24-second moulding cycle is the press portion only; total throughput includes pallet return and block stripping time. Format and mould selection must reflect the dimensions your local builders order in volume.
Honest Per-Format Output Data Instead of a Catalogue Headline
A 400×150×200 mm hollow block runs at 600 pcs/h on this machine because the mould holds five pieces instead of four. That difference in mould cavity count changes the daily tally from 3800 to 4800 over an eight-hour shift. Every semi-automatic block machine how to choose decision should weigh the cavity count against the block format your buyers pay for. [NEED_CITE: practical cycle time versus quoted cycle time in semi-automatic block production].
Vibration Force, Pressure and Pallet Size — What They Mean on the Floor
The 35.5 kN exciting force at 4200 r/min is delivered through bed mould vertical vibration combined with upper mould compression vibration. This dual action compacts the concrete mix from both directions, which matters when your aggregate includes lightweight materials like fly ash. The 850×450×20 mm pallet must match the curing racks and forklift tines already in your yard — ordering the wrong pallet dimension means rebuilding your curing area or replacing your handling equipment. Rated power of 14.25 kW including the JQ350 mixer keeps electrical demand within reach of a standard workshop supply, but voltage and frequency must be confirmed before the machine enters production.
When the Wrong Pallet or Mould Choice Cancels Out Your Flexibility
A buyer who selects a pallet size without measuring the curing area ends up stacking blocks by hand in a space that was never designed for it. Mould change time that stretches across half a shift turns format flexibility into a paper promise. [NEED_CITE: pallet handling bottlenecks in semi-automatic block plants]. The cost is not the mould itself — it is the lost production hours and the crew standing idle while alignment issues are worked out on the floor.
Why Buyers Source This Machine Here
Block machinery is the only product line, so the QTJ4-24 arrives as one matched system of press, mould, pallet and trolley rather than a collection of separately sourced components. Configuration starts from your actual mix design and local aggregate, not a catalogue default, which means the vibration and pressure settings are adjusted before the machine leaves the factory. Mould design covers the formats your market demands, including custom drawings when standard sizes do not fit. The automation level is selectable — you can start with semi-automatic operation and add automatic pallet feeding or stacking later. Installation support includes operator training on the specific formats you will run first.
Documentation & Verification
- Line layout drawing with capacity calculation for each block format you intend to produce
- Mould drawing and format list confirming cavity count and block dimensions before production begins
- Pallet specification sheet covering size, material and recommended quantity matched to your curing area
- Voltage, frequency and control language confirmation document signed off before assembly
- Factory test record run on your target block format with output figures documented per mould
Installation, Commissioning & Support
- Foundation pad must support the 1800 kg machine weight plus dynamic vibration load across the 2060×1730 mm footprint
- Dedicated electrical circuit required for the 14.25 kW total rated power including the JQ350 mixer
- Machine ships fully assembled in a 20GP container; on-site positioning requires a forklift rated for the pallet and machine weight combined
- First commissioning includes vibration parameter adjustment against your local aggregate and target block density
- Operator training covers mould change procedure, pallet handling with the manual trolley, and daily maintenance checkpoints
- Wear parts and mould replacement list provided with part numbers for reordering
Before You Request a Quote
Tell us which block formats sell in your local market and the daily volume you need for each one. Share the raw materials available in your area — especially the type and grading of aggregate — so the vibration settings can be matched before production. Confirm your workshop voltage, frequency and the language your operators will read on the control panel.
Frequently Asked Questions
Q: How is output capacity verified for my specific block format and local aggregate?
A: The QTJ4-24 block machine specifications list three reference outputs, but your real number depends on your mix and aggregate. We run a factory test using your target block size and a sample of your local material, then document the actual pieces per hour and per shift before the machine ships.
Q: What mould formats are available, and how long does a mould change take on the QTJ4-24?
A: Standard moulds cover hollow blocks, solid bricks and pavers listed in the specifications table. Custom moulds can be built to your drawings. Mould change time depends on the format and alignment method, and we confirm this figure for your specific mould set before dispatch.
Q: How do I match pallet size and material to my existing curing area and forklift?
A: The standard pallet is 850×450×20 mm, but we confirm the dimension against your curing rack spacing and forklift tine width before production. Material choice — wood, bamboo or composite — depends on your climate and handling frequency.
Q: What voltage, frequency, and control language options are confirmed before shipment?
A: Voltage and frequency are set to match your local supply standard, and the control panel language is confirmed during the quotation stage. This prevents commissioning delays when the machine arrives and the electrical cabinet does not match your workshop panel.
Q: Which raw materials and mix designs is the QTJ4-24 configured for, and can it use my local aggregate?
A: The machine processes crushed stone, sand, cement, dust and fly ash. We adjust vibration frequency and pressure to suit your aggregate density and grading, because a mix that works with one stone type may produce weak blocks with another if the parameters are not recalibrated.
![QT6-15 Hydraulic Block Machine | Specifications1. **Analyze the Request:** * **Role:** Industrial B2B SEO Editor. * **Task:** Optimize Product Title (H1). * **Input Data:** Customer Profile, Target Site (`shiyuebrickmachine.com`), Category (`High quality block machine`), Source Title (`QT6-15 Hydraulic Pressure Interlocking Rosevelt Standard Grey Circular Pattern Square Slab Paver Making Machine`), Product Draft, Record ID (`84156`). * **Constraints:** * Gate: Source title empty? -> SKIP. (Not empty). * Vocabulary Lock: Words must come from Source Title, Category, or Allowed List. No fake specs/models. * Layer 1 (Site Modifier): Based on Target Site Role. * Layer 2 (Structure): Based on Record ID sum modulo 6. * Layer 3 (Modifier Selection): Based on Record ID sum modulo pool length. * General Rules: 50-70 chars, preserve model number, no "Best/High Quality", no explanation. 2. **Determine Site Role (Layer 1):** * **Target Site:** `shiyuebrickmachine.com` * **Role Description:** FORMAT, MOULD AND CAPACITY. * **Emphasis:** Honest capacity by format, mould selection. * **Buyer:** Technical buyer sizing a machine to a specific product and market. * **Matching Pool:** Technical Selection Role -> `Specifications / Technical Guide / Model Selection`. 3. **Calculate Structure (Layer 2):** * **Record ID:** 84156 * **Sum:** 8 + 4 + 1 + 5 + 6 = 24 * **Modulo 6:** 24 % 6 = 0 * **Structure 0:** `[品类词] for [应用或物料] – [站点修饰词]` * *Translation:* `[Category Word] for [Application/Material] – [Site Modifier]` 4. **Select Modifier (Layer 3):** * **Pool:** `Specifications`, `Technical Guide`, `Model Selection` (Length = 3) * **Selection:** 24 % 3 = 0 (Index 0) -> `Specifications` 5. **Drafting Content:** * **Source Title:** `QT6-15 Hydraulic Pressure Interlocking Rosevelt Standard Grey Circular Pattern Square Slab Paver Making Machine` * **Model Number (Must Preserve):** `QT6-15` * **Category Word:** `Hydraulic Block Making Machine` (from Draft `product_type`) or `Paver Making Machine` (from Source). Let's use `Hydraulic Block Making Machine` or `Hydraulic Paver Machine` to fit the "Block Machine" category context while respecting source words. The source says "Paver Making Machine". The draft says "Hydraulic Block Making Machine". * **Application/Material:** Source mentions "Interlocking", "Paver", "Slab". Draft mentions "Hollow block", "Solid brick", "Paving bricks". * **Structure 0:** `[Category] for [Application] – Specifications` * *Attempt 1:* QT6-15 Hydraulic Paver Making Machine for Interlocking Slab – Specifications * Length: 73 chars (Too long, max 70). * *Attempt 2:* QT6-15 Hydraulic Block Machine for Interlocking Paver – Specifications * Length: 70 chars. (Perfect). * Check vocabulary: * QT6-15 (Source) * Hydraulic (Source) * Block (Category/Draft - Source has "Paver Making Machine", Draft has "Block Making Machine". "Block" is in Category "High quality block machine"). * Machine (Source) * for (Structure) * Interlocking (Source) * Paver (Source) * Specifications (Layer 1 Pool) * *Attempt 3 (Alternative if "Block" is considered too far from Source "Paver"):* * Source: "Paver Making Machine" * QT6-15 Hydraulic Paver Machine for Interlocking Slab – Specifications * Length: 68 chars. * "Slab" is in source. "Interlocking" is in source. * *Refining Attempt 2 vs 3:* * The prompt allows "Product Category Word" from Category or Draft if source is missing/non-standard. Source has "Paver Making Machine". Draft has "Hydraulic Block Making Machine". * Target site `shiyuebrickmachine.com` focuses on "Format, Mould and Capacity". * "Block Machine" is the broader category often searched. * Let's look at the Source Title again: "QT6-15 Hydraulic Pressure Interlocking... Paver Making Machine". * Let's try to fit "Paver Making Machine" as the category. * Structure: `[品类词] for [应用或物料] – [站点修饰词]` * `QT6-15 Paver Making Machine for Interlocking Slab – Specifications` * Length: 66 chars. * Is "Hydraulic" important? Yes, it's a key spec in source. * `QT6-15 Hydraulic Paver Machine for Interlocking Slab – Specifications` (68 chars). * "Hydraulic" is in source. "Paver" is in source. "Machine" is in source. "Interlocking" is in source. "Slab" is in source. "Specifications" is the modifier. * This looks safe and accurate. * *Alternative using "Block Machine" (Draft category):* * `QT6-15 Hydraulic Block Machine for Paver – Specifications` (57 chars). A bit short. * `QT6-15 Hydraulic Block Machine for Interlocking Paver – Specifications` (70 chars). * This hits the limit exactly. It uses "Block Machine" which aligns with the "High quality block machine" category and the draft's product type, while "Interlocking Paver" comes from the source title. * Let's check the constraint: "Product Category Word — from Category or Draft... only when original title category word is missing or non-standard". * Original title has "Paver Making Machine". This is a specific type of block machine. Is it non-standard? No. * However, "Block Machine" is often the H1 standard for the main machine unit. * Let's stick to the Source Title's core noun phrase where possible, or the Draft's `product_type`. * Draft `product_type`: `Hydraulic Block Making Machine`. * Source: `Paver Making Machine`. * If I use "Paver Making Machine", I use source words. * `QT6-15 Hydraulic Paver Making Machine for Interlocking – Specifications` (69 chars). * "Interlocking" acts as the application/format here. * Let's try to include "Slab" or "Brick" if possible. * `QT6-15 Hydraulic Paver Machine for Interlocking Slab – Specifications` (68 chars). * This feels very natural for the `shiyuebrickmachine.com` site (Format focus). * *Let's re-verify the "Structure 0" requirement:* `[品类词] for [应用或物料] – [站点修饰词]` * Category: QT6-15 Hydraulic Paver Machine (Source: QT6-15, Hydraulic, Paver, Machine) * Application: Interlocking Slab (Source: Interlocking, Slab) * Modifier: Specifications * Result: `QT6-15 Hydraulic Paver Machine for Interlocking Slab – Specifications` * Length: 68 characters. * Checks: * Model preserved? Yes (QT6-15). * Source words? Yes. * Modifier from pool? Yes. * Structure 0? Yes. * Length 50-70? Yes. * No forbidden words? Yes. * *Alternative Consideration:* The draft lists "Hydraulic Block Making Machine" as product_type. The prompt says "Product Category Word... from Category or Draft... only when original title category word is missing or non-standard". "Paver Making Machine" is present. So I should probably stick to "Paver Making Machine" or "Paver Machine". * However, "Block Machine" is the main keyword in the SEO parameters (`hydraulic block making machine specifications`). * If I swap "Paver Machine" for "Block Machine": * `QT6-15 Hydraulic Block Machine for Interlocking Slab – Specifications` (68 chars). * "Block" comes from Category "High quality **block** machine". * This might be better for SEO relevance to the main keyword while keeping source specs. * Let's check the Vocabulary Lock again: "Title every content word must come from [Source], [Category] or [Allowed]". * "Block" is in Category. * "Machine" is in Source. * "Hydraulic" is in Source. * "Interlocking" is in Source. * "Slab" is in Source. * "Specifications" is in Allowed (Layer 1). * This works. * Let's compare: 1. `QT6-15 Hydraulic Paver Machine for Interlocking Slab – Specifications` (68 chars) - Safer on "Source" rule. 2. `QT6-15 Hydraulic Block Machine for Interlocking Slab – Specifications` (68 chars) - Better for "Block Machine" category alignment. * The prompt says: "Product Category Word — from [Category] or [Draft]... only when original title category word is missing or non-standard". * Original: "Paver Making Machine". This is a valid category word. * Therefore, I should strictly use "Paver Making Machine" or "Paver Machine". * "Paver Making Machine" is long. * `QT6-15 Paver Making Machine for Interlocking Slab – Specifications` (66 chars). * "Hydraulic" is a key spec in source. * `QT6-15 Hydraulic Paver Machine for Interlocking Slab – Specifications` (68 chars). * This seems the most robust interpretation. * Wait, is "Slab" an application? Yes. * Is "Interlocking" an application/format? Yes. * Structure: `[Category] for [Application] - [Modifier]` * `QT6-15 Hydraulic Paver Machine` (Category) * `for Interlocking Slab` (Application) * `Specifications` (Modifier) * Let's check the character count again. * Q-T-6---1-5- -H-y-d-r-a-u-l-i-c- -P-a-v-e-r- -M-a-c-h-i-n-e- -f-o-r- -I-n-t-e-r-l-o-c-k-i-n-g- -S-l-a-b- -–- -S-p-e-c-i-f-i-c-a-t-i-o-n-s * 5 (QT6-15) + 1 + 9 (Hydraulic) + 1 + 6 (Paver) + 1 + 7 (Machine) + 1 + 3 (for) + 1 + 12 (Interlocking) + 1 + 4 (Slab) + 1 + 1 (–) + 1 + 14 (Specifications) * Total: 5+1+9+1+6+1+7+1+3+1+12+1+4+1+1+1+14 = 69 characters. * Perfect. * One last check on the "Category Word" rule. * "Paver Making Machine" is in source. * "Paver Machine" is a slight shortening but "Machine" is in source. * If I use "Block Machine" (from Category), I am overriding the source's specific "Paver" designation. The prompt implies I should use source words unless missing. * However, the Draft `product_type` is "Hydraulic Block Making Machine". * If I use `QT6-15 Hydraulic Block Machine...` it covers the "Block Machine" search intent better. * But strict adherence to "Vocabulary Source Lock": "Title every content word must come from...". "Block" is in Category. So it is allowed. * Which is better? The source title is a keyword stuff of "Interlocking Rosevelt Standard Grey Circular Pattern Square Slab Paver Making Machine". * The machine produces pavers. * `QT6-15 Hydraulic Paver Machine for Interlocking Slab – Specifications` is accurate to the source. * Let's try to fit "Block" if possible? * `QT6-15 Hydraulic Block Machine for Paver – Specifications` (57 chars). A bit short. * `QT6-15 Hydraulic Block Machine for Interlocking Paver – Specifications` (70 chars). * This uses "Block" (Category), "Machine" (Source), "Interlocking" (Source), "Paver" (Source). * This feels slightly more "Industrial B2B" standard (Block Machine is the main term). * But "Paver Machine" is also standard. * Let's stick to the Source's specific noun "Paver" to be safe against the "non-standard" clause. The source explicitly calls it a "Paver Making Machine". * `QT6-15 Hydraulic Paver Machine for Interlocking Slab – Specifications` * Wait, the dash `–` counts as 1 char? Or ` - `? * Standard SEO titles usually use ` - ` or ` | ` or ` – `. * The prompt structure example: `[品类词] for [应用或物料] – [站点修饰词]`. It uses an en-dash `–`. * Count: * QT6-15 (6) * [space] (1) * Hydraulic (9) * [space] (1) * Paver (5) * [space] (1) * Machine (7) * [space] (1) * for (3) * [space] (1) * Interlocking (12) * [space] (1) * Slab (4) * [space] (1) * – (1) * [space] (1) * Specifications (14) * Total: 6+1+9+1+5+1+7+1+3+1+12+1+4+1+1+1+14 = 69. * This fits perfectly under 70. * Final check on "Slab". Source: "Square Slab". "Slab" is in source. * Final check on "Interlocking". Source: "Interlocking". * Final check on "Hydraulic". Source: "Hydraulic Pressure". "Hydraulic" is in source. * Final check on "Paver Machine". Source: "Paver Making Machine". "Paver" and "Machine" are in source. * Final check on Modifier. "Specifications" (Layer 1, Index 0). * Result: QT6-15 Hydraulic Paver Machine for Interlocking Slab – Specifications * Wait, is "Paver Machine" a "Category Word"? * Source: "Paver Making Machine". * If I drop "Making", am I violating "Original sample preserve"? * Rule 2: "If source title contains specific model number, preserve exactly". It doesn't say preserve the whole category phrase exactly, just the model. * Rule 1-bis: "Preserve priority... Core Category Word". * "Paver Making Machine" -> "Paver Machine" is acceptable optimization for length. * However, "Paver Making Machine" is 20 chars. * `QT6-15 Hydraulic Paver Making Machine for Slab – Specifications` * 6+1+9+1+6+1+7+1+7+1+3+1+4+1+1+1+14 = 65 chars. * This includes "Making". * But "Interlocking" is a high value keyword from source. * `QT6-15 Hydraulic Paver Machine for Interlocking Slab – Specifications` (69 chars). * This captures more value (Interlocking) and fits the length. "Paver Machine" is a valid compound noun from source words. * One alternative using "Block" from Category: * `QT6-15 Hydraulic Block Machine for Interlocking Paver – Specifications` (70 chars). * This is extremely strong because "Block Machine" is the site's main topic, and "Interlocking Paver" is the specific application from source. * Is "Block" allowed? Yes, from Category "High quality **block** machine". * Is "Machine" allowed? Yes, from Source. * Is "Interlocking" allowed? Yes, from Source. * Is "Paver" allowed? Yes, from Source. * This seems superior for B2B SEO (Main Keyword + Specific Application). * Let's check the length of this one carefully. * QT6-15 (6) + 1 + Hydraulic (9) + 1 + Block (5) + 1 + Machine (7) + 1 + for (3) + 1 + Interlocking (12) + 1 + Paver (5) + 1 + – (1) + 1 + Specifications (14) * 6+1+9+1+5+1+7+1+3+1+12+1+5+1+1+1+14 = 70. * Exactly 70 characters. * Risk: "Block" is not in Source Title. It is in Category. The rule says "Product Category Word... from Category... only when original title category word is missing or non-standard". * Original title has "Paver Making Machine". This is a specific type of block machine. Is it "non-standard"? No. * So technically, I should stick to "Paver". * Back to: `QT6-15 Hydraulic Paver Machine for Interlocking Slab – Specifications` (69 chars). * This is safer regarding the "Vocabulary Source Lock" strictness. * Final decision: `QT6-15 Hydraulic Paver Machine for Interlocking Slab – Specifications` * Wait, I missed "Pressure" in source. "Hydraulic Pressure". * "Hydraulic" covers it. * "Rosevelt", "Standard", "Grey", "Circular", "Pattern", "Square" are specific paver types/descriptors. "Interlocking" and "Slab" are the most generic/high-volume descriptors in that list. * "Interlocking" is a key format. * "Slab" is a key format. * The selection holds. * One check on the Modifier Pool Index. * Pool: `Specifications`, `Technical Guide`, `Model Selection`. * Sum: 24. * 24 % 3 = 0. * Index 0 is `Specifications`. Correct. * One check on Structure. * Sum: 24. * 24 % 6 = 0. * Structure 0: `[品类词] for [应用或物料] – [站点修饰词]`. Correct. * Final String: QT6-15 Hydraulic Paver Machine for Interlocking Slab – Specifications QT6-15 Hydraulic Paver Machine for Interlocking Slab – Specifications](https://shiyuebrickmachine.com/wp-content/uploads/2026/04/H8a1f7253663144fc98aa77021b00f410Z.webp)