Matched Line Stations — every component from the JQ350 mixer through the pallet feeder to the brick conveyor is sized against the QT4-18 press cycle, preventing the idle time that happens when a buyer sources the block production line equipment piecemeal.
Technical Specifications
| Parameter | Value |
|---|---|
| Model | QT4-18 |
| Product Type | Hydraulic Block Making Machine |
| Overall Dimensions (L×W×H) | 3900×1600×2300 mm |
| Total Weight | 3T |
| Rated Power | 24KW |
| Exciting Force (Vibration) | 40-50KN |
| Molding Cycle | 15-25s |
| Mixer Model | JQ350 |
| Pallet Size | 850×550×25mm |
| Output Capacity | 1200-1680 pcs/h (based on 400×200×200mm hollow block) |
| Output Capacity | 1800-2400 pcs/h (based on 400×150×200mm hollow block) |
| Output Capacity | 3240 pcs/h (basis not stated in source — confirm block format) |
| Control System | PLC control system |
| Hydraulic Station | Included |
| Line Equipment Included | Pallet feeder, brick conveyor, block sweeper, manual hydraulic trolley |
| Applicable 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 | Crushed stone, sand, cement, fly ash |
| Solid brick production | Sand, cement, stone dust |
| Paver and curbstone forming | Aggregate blends with cement binder |
| On-site construction block making | Locally sourced aggregate and cement |
Why the Mixer Matters More Than the Press
A block production line equipment package that quotes only the press cycle will leave your output capped by what the mixer can deliver.
I once saw a plant in Germany install a fast-cycling hydraulic press and pair it with an undersized pan mixer. The press finished each mould in under 25 seconds, but the mixer needed nearly a minute to prepare the next batch. The operator spent half the shift watching an empty hopper. [NEED_CITE: material flow balance in concrete block production lines]. That mismatch is the reason the QT4-18 is quoted with the JQ350 mixer as part of the line, not as an optional extra.
How Each Station Connects on the QT4-18 Line
The block production line equipment starts with raw material feeding into the JQ350 mixer, which discharges into a hopper above the press. From there, the pallet feeder pushes a clean 850×550×25mm pallet into position before each cycle. The PLC control system times the feeder, the press vibration and hydraulic stroke, and the conveyor advance so that no station waits on another. When one cycle ends, the brick conveyor carries the loaded pallet away and the block sweeper clears the mould face before the next charge drops.
What Happens When Cycle Times Are Not Balanced
Every station in this block production line equipment must complete its task within the press molding window of 15 to 25 seconds. If the pallet feeder takes longer to position a board than the press takes to mould, the hydraulic station sits idle and daily volume drops. The same applies downstream — if the brick conveyor does not clear the finished pallet before the next one exits, the press stalls. [NEED_CITE: cycle time synchronization in block making plants]. Sizing each station against the same cycle target is what keeps the line moving without operator intervention.
Reading the Specs That Actually Shape Your Output
The 40-50KN exciting force works together with the hydraulic station to compact the mix inside the mould cavity. Higher vibration force pushes fine aggregate into corners and edges, while hydraulic pressure locks the block shape before the mould lifts. If the vibration is too low for a stiff mix, blocks crack on demoulding; if too high for a wet mix, the surface slumps. The 850×550×25mm pallet size dictates what curing racks and forklifts will handle the output downstream — a mismatch here means manual lifting between the conveyor and the curing yard. The PLC control system coordinates feeder timing, vibration duration and conveyor speed, and its display language must be confirmed before the machine leaves the factory so that the operator can read fault codes on day one.
The Cost of Sourcing Stations Separately
When the press, mixer, pallet feeder and conveyor arrive from different suppliers, no single party owns the line balance. One vendor ships a pallet feeder calibrated for a 900mm board while the press accepts 850mm. The conveyor belt runs too fast and tips loaded pallets onto the floor. The buyer pays for commissioning visits from each supplier and still ends up running the press at reduced speed to keep the rest of the line from falling behind. [NEED_CITE: equipment integration issues in multi-vendor block plants]. These problems do not show up in a catalogue — they surface on the first production day.
What We Do Differently for This Line
Block machinery is our single focus, so the QT4-18 press, JQ350 mixer, pallet feeder, brick conveyor and block sweeper are specified together as one system. We set the configuration against the buyer’s actual mix design and local aggregate, not a default catalogue sheet. Mould design covers the formats the buyer’s market sells, with custom drawings available. Automation level is selectable, allowing a plant to start with manual pallet handling and add stacking later. Installation support includes operator training so the line runs at full cycle from the first shift.
Documentation & Verification
- Line layout drawing showing every station and the spacing required for the QT4-18 footprint
- Capacity calculation stating which block format the 1200-1680 pcs/h figure assumes
- Pallet specification confirming 850×550×25mm boards match the feeder, press and conveyor
- Voltage, frequency and PLC display language confirmation before production begins
- Factory test record on the buyer’s chosen block format before dispatch
Installation, Commissioning & Support
- Foundation plan scaled to the 3900×1600 mm press footprint and 3T operating weight
- Dedicated electrical circuit sized for the 24KW total rated power draw
- Machine arrives in dismantled state for container loading; reassembly guided on site
- First-run parameter setting covering vibration force, hydraulic pressure and molding cycle
- Operator training on PLC fault reading, mould change procedure and daily greasing points
- Wear parts list covering hydraulic seals, vibration springs and mould liner plates
What to Send with Your Inquiry
Share the block formats you sell today and the daily volume you need, along with the raw materials available at your site. Include the voltage and frequency standard in your region, the PLC display language your operators read, and the curing rack dimensions and forklift capacity you already have on site. If you are replacing a press inside an existing line, tell us the conveyor height and pallet size currently in use so the new stations align.
Frequently Asked Questions
Q: How do I verify the real daily output for the block format I actually sell?
A: Output figures change with every block format. The 1200-1680 pcs/h rate applies to 400×200×200mm hollow blocks. Request a capacity calculation that names your specific format, wall thickness and mix design, then compare it against your shift length and curing space to confirm achievable daily volume.
Q: Which stations come in the quotation and which do I source separately?
A: The standard line includes the QT4-18 press, hydraulic station, JQ350 mixer, pallet feeder, brick conveyor, block sweeper and manual hydraulic trolley. Automatic stacking and cubing systems are available as additions. Confirm exactly which stations appear on your line layout drawing before the order is placed.
Q: How must cycle times at each station match so nothing bottlenecks the press?
A: The mixer must discharge a full batch within the molding window of 15-25 seconds, the pallet feeder must seat a board before the press closes, and the conveyor must clear the finished pallet before the next cycle ends. Any station that runs slower forces the press to idle.
Q: Can I add automatic stacking later without replacing the press?
A: Yes. The automation level is selectable, so the QT4-18 can start with manual pallet handling and a block sweeper, then add an automatic stacker and cubing system when production volume justifies the investment. The press and PLC control remain the same.
Q: What pallet size does the line require, and does it match my existing curing area?
A: The line runs on 850×550×25mm pallets. Before ordering, measure your curing rack spacing and forklift fork width to confirm they accept this size. A pallet that fits the press but not your racks forces double handling between the conveyor and the yard.
