Matched Line System — The QT4-18 is specified alongside its JQ350 mixer, belt conveyor, automatic stacker and pallet trolley so station cycle times align and the press never waits for material or pallets.
Technical Specifications
| Parameter | Value |
|---|---|
| Product Type | Hydraulic Concrete Block Making Machine |
| Model | QT4-18 |
| Overall Dimensions (L×W×H) | 3900×1600×2300 mm |
| Molding Cycle | 15-25 s |
| Vibration Force | 40-50 kN |
| Total Power | 24 kW |
| Mixer Model | JQ350 |
| Pallet Size | 850×550×25 mm |
| Total Weight | 3 T |
| Hydraulic System | Hydraulic station (pressure rating to be confirmed) |
| Control System | To be confirmed (PLC / manual / relay options) |
| Voltage & Frequency | Configurable to buyer site supply |
| Automation Level | Semi-automatic |
| Stacking Method | Automatic stacker included in line |
| Output Capacity | 1200-1680 pcs/hr based on 400×200×200 mm hollow block (4 pcs/mould) |
| Output Capacity | 14400-19200 pcs/8 hr based on 400×150×200 mm hollow block |
| Output Capacity | 3240 pcs/hr based on 240×115×53 mm solid brick |
| Cycle Time per Format | 15-20 s for hollow block and solid brick |
| Applied Products | Paver, solid block, hollow block, curbstone |
| Raw Materials | Crushed stones, sand, cement, dust, fly ash |
Application Suitability
| Application | Material or Output |
|---|---|
| Hollow block production for masonry walls | Crushed stone, sand, cement and fly ash mixes |
| Solid brick manufacturing for load-bearing structures | Dense aggregate blends with cement binder |
| Paving block production for walkways and yards | High-strength concrete with fine aggregate |
| Curbstone forming for road and kerb projects | Coarse aggregate concrete with hydraulic compression |
| On-site block production for housing projects | Locally sourced sand and stone with cement |
What a Block Line Quotation Often Leaves Out
A press quoted alone leaves the buyer to source pallets, stacking and trolley transfer separately, creating cycle mismatches from day one.
I spent years on the assembly floor tightening bolts on block machines before moving to technical sales, and the most common complaint I hear is not about the press itself. Buyers receive the host machine only to discover that pallet handling, stacking and curing were never included. Output piles up on the factory floor waiting for someone to move it by hand. A hydraulic block making machine production line should account for every station between the mixer and the curing area, otherwise the rated cycle time becomes theoretical rather than practical. [NEED_CITE: common causes of block plant downtime in small to mid-size operations]
Stations That Must Keep Pace with the Press
The JQ350 mixer feeds the belt conveyor, which delivers mixed material into the QT4-18 hopper on a timing that matches the 15-25 second molding cycle. If the mixer batch size is too small or the conveyor speed too slow, the press sits idle waiting for material. This hydraulic block making machine production line specifies each station so that material arrives just as the previous mould cycle completes, keeping the host press running at its intended rhythm.
Pallet Flow from Press to Curing Area
The 850×550×25 mm pallet size is chosen to match both the press platen and the automatic stacker reach. After pressing, the stacker lifts the loaded pallet and places it on the trolley, which transfers the stack to the curing zone. When pallet dimensions do not align with the curing rack spacing or the forklift fork width already on site, the entire output flow stalls at the transfer point. [NEED_CITE: pallet sizing considerations for block curing areas]
How Vibration and Pressure Shape Block Density
The QT4-18 uses bed mould vertical vibration combined with upper mould compression vibration to compact the concrete mix evenly. The hydraulic station supplies steady pressure throughout the compression stroke, which matters when local aggregate contains higher clay or moisture content. A mix that works in the factory test may behave differently on arrival if the vibration force and hydraulic pressure were not tuned to the buyer’s actual raw material.
Reading the Specs That Matter Most
The 40-50 kN vibration force range determines how tightly aggregate particles pack inside the mould, directly influencing block compressive strength. The 24 kW total power covers the mixer, conveyor, press and stacker together, so the buyer can plan a single supply circuit. Pallet size at 850×550×25 mm dictates how many pallets the curing area must hold for continuous operation — typically 300 to 500 pieces are recommended to avoid press stoppages. Molding cycle of 15-25 seconds varies with block format: hollow blocks with thinner walls fill and compact faster than solid pavers requiring full-depth compression.
The Cost of Skipping Line-Level Planning
When a buyer orders only the press and adds supporting equipment later, the conveyor may deliver material faster than the mixer can batch, or the stacker may not reach the curing rack height. I have seen plants where the automatic stacker sat unplugged for months because the pallet trolley was never ordered. These gaps do not show up in a single-machine quotation but surface during commissioning, when every station must run together. [NEED_CITE: risks of assembling block plant from unmatched suppliers]
Why Sourcing the Full Line Here Differs
Block machinery is the single focus at SHIYUE, so the QT4-18 press, JQ350 mixer, stacker and pallets are specified as one matched system rather than assembled from separate vendors. The configuration starts from the buyer’s actual mix design and local aggregate, not a catalogue default. Mould design covers the formats the buyer’s market sells, including custom drawings when standard formats do not match local demand. Automation level is selectable, meaning a buyer can start with the semi-automatic stacker and add full cubing later. Installation support includes operator training so the team understands how station timing affects overall output.
Documentation & Verification
- Line layout drawing with capacity calculation stated per block format
- Machine specification sheet covering press, mixer and stacker
- Mould drawing and format list for each product in the quotation
- Pallet specification including size, material and recommended quantity
- Hydraulic and electrical schematic for local maintenance planning
- Factory test record on buyer’s target block format before dispatch
Installation, Commissioning & Support
- Foundation plan sized to the 3900×1600 mm press footprint and vibration load
- Power supply confirmed for 24 kW total draw across mixer, press and stacker
- Machine shipped in dismantled state with reassembly guidance on site
- Commissioning includes cycle timing adjustment between JQ350 mixer and press
- Operator training covers mould change procedure and stacker alignment
- Wear parts list with hydraulic seals and vibration springs identified for first reorder
Before You Send an Inquiry
To size this hydraulic block making machine production line correctly, share your target block formats and the daily output you need for each. Tell us about your local sand, stone and cement sources, including any clay or moisture issues you have encountered. Confirm your site voltage, frequency and preferred control display language so the electrical panel matches your electrician’s standards on arrival.
Frequently Asked Questions
Q: What stations are included between the mixer and the curing area?
A: The line runs from the JQ350 mixer through a belt conveyor into the QT4-18 host press, then an automatic stacker lifts loaded pallets onto a trolley for transfer to the curing zone. Each station is timed so the press completes its 15-25 second molding cycle without waiting for material or pallets.
Q: How is daily output calculated per block format?
A: Output figures assume a specific block size and mould cavity count. For example, 1200-1680 pieces per hour is based on a 400×200×200 mm hollow block with four cavities per mould at a 15-20 second cycle. Different formats such as solid brick or paver will carry their own cycle time and cavity count.
Q: How does pallet size affect the curing area layout?
A: The 850×550×25 mm pallet determines rack spacing, stack height and forklift fork width requirements. A typical plant needs 300 to 500 pallets in rotation so the press never stops waiting for an empty pallet to return from the curing zone.
Q: Can the line start semi-automatic and upgrade later?
A: Yes. The QT4-18 ships as a semi-automatic line with the automatic stacker included. Buyers can add full automatic cubing and rack handling at a later stage once production volume justifies the additional stations.
Q: What voltage and control details must be confirmed before shipping?
A: The buyer needs to confirm site voltage, frequency and the preferred PLC or relay control display language. These details are locked in before production so the electrical panel and control interface match local standards when the line arrives.
