Description
Fast dispatch readiness — every QT4-25 leaving our Linyi workshop ships with matched moulds, pallets, and mixer so the line runs within days of port clearance, not weeks waiting for missing components.
Technical Specifications
| Parameter | Value |
|---|---|
| Model | QT4-25 |
| Product Type | Stationary Block Making Machine |
| Rated Power | 17.9 kW |
| Vibration Frequency | 2800 r/min |
| Exciting Force | 60 kN |
| Overall Dimensions (L×W×H) | 6400 × 1500 × 2700 mm |
| Net Weight | 2500 kg |
| Mould Format | 400 × 200 × 200 mm hollow block, 4 pcs/mould |
| Cycle Time | 25 s (basis not stated in source) |
| Output Capacity | 960 pcs/h, 7680 pcs/day (based on 400×200×200mm hollow block, 4 pcs/mould) |
| Pallet Size | 850 × 550 × 20 mm |
| Automation Level | Semi-automatic |
| Control System | PLC (brand and display language to be confirmed) |
| Hydraulic Station | Included |
| Configuration Included | Host machine 1 set, block mould 1 set, JQ350 mixer |
| Stacking Method | Manual pallet handling via trolley |
Application Suitability
| Application | Material or Output |
|---|---|
| Hollow block production for masonry walls | Cement, sand, crushed stone aggregate |
| Solid block manufacturing for load-bearing structures | Cement, gravel, fine aggregate blends |
| Paving block output for walkways and yards | Cement, coarse sand, pigment additives |
| Kerbstone and curb production for road edges | Cement, dense aggregate mixes |
| On-site contractor block making at housing projects | Locally sourced sand and aggregate with cement |
Why Voltage Confirmation Must Happen Before the Container Leaves Linyi
The electrical nameplate must match your destination grid before crating, not after the stationary block machine in stock arrives on site.
I once watched a QT4-25 sit idle in a Middle East yard for three weeks because the motor was wired for 380V/50Hz while the site ran on 440V/60Hz. The contractor had assumed the factory would "ship the right voltage," and the factory had assumed the buyer knew to ask. Neither assumption was written down. Rewinding the motor on site cost more than the shipping delay itself [NEED_CITE: voltage and frequency standards by export market]. This is why every dispatch from our workshop now requires a signed voltage and frequency confirmation sheet before the electrical cabinet is closed.
Dispatch Timing That Matches Your Project Schedule
Buyers working against construction deadlines cannot afford ambiguous lead times. The QT4-25 stationary block machine in stock is held in semi-assembled state at our Linyi yard, meaning the host frame, hydraulic station, and vibration assembly are pre-built. Once your mould format and voltage are confirmed, final assembly and testing take a defined number of working days before crating. We quote the dispatch date at inquiry stage, not after payment.
Container Loading and What Actually Ships Together
A common frustration in machinery imports is receiving the press but waiting separately for pallets, the mixer, or spare moulds stuck in a second shipment. The QT4-25 configuration includes the host machine, one block mould set, and the JQ350 mixer in a single container load. Pallets in the 850 × 550 × 20 mm format are stacked and secured alongside the main frame. Before the container door closes, we send packing photographs and a loading plan so you know exactly what is on the truck.
How Vibration Force and Hydraulic Pressure Shape Block Density
The 60 kN exciting force at 2800 r/min works together with hydraulic pressure to compact the concrete mix inside the mould cavity. Higher vibration frequency alone does not guarantee stronger blocks — the hydraulic head must hold the mould box steady so the vibration energy transfers into the material rather than dissipating through frame movement. For buyers using lightweight aggregates or high-sand mixes, the balance between vibration and pressure directly determines whether blocks meet local compressive strength requirements. The 850 × 550 mm pallet size also dictates how many blocks cure per rack position, which affects your daily throughput once the press cycle is complete. Pallet material and thickness must match the forklift and curing rack you already have on site, not the other way around [NEED_CITE: pallet load ratings for concrete block curing].
What Happens When Pallet and Mixer Sizing Are Left to Chance
A block press that cycles every 25 seconds will sit idle if the mixer cannot feed fast enough or if cured pallets pile up with nowhere to go. The JQ350 mixer included with the QT4-25 is sized to keep pace with semi-automatic production, but if you plan to add a second press later, the mixer capacity becomes the bottleneck. Similarly, manual pallet handling by trolley works at this output tier, but buyers who underestimate curing area requirements end up stacking wet blocks on the ground, damaging edges and losing saleable product [NEED_CITE: curing area calculation for semi-automatic block plants].
Why Procurement Through This Channel Reduces Arrival Risk
Block machinery is our single focus, so the QT4-25 ships as a matched system — press, mould, pallet, and mixer specified together rather than assembled from separate suppliers. We confirm voltage, frequency, and PLC display language against your destination market before production closes. Stock status is reported honestly: if a model is in the yard, we say so; if it needs a production run, we give the realistic date. Container loading plans and packing photographs are standard before dispatch, not an afterthought. Customs documentation support is included so port clearance does not become a second delay.
Documentation & Verification
- Factory test record showing cycle performance on your specified block format before crating
- Voltage and frequency confirmation sheet signed by both parties prior to electrical cabinet seal
- Pallet specification sheet with load rating matched to your curing rack and forklift
- Machine specification and mould format list detailing included and optional moulds
- Packing photographs and container loading diagram sent before the container door closes
- Customs and export documentation package prepared for your destination port requirements
Installation, Commissioning & Support
- Foundation pad must support 2500 kg static load across the 6400 × 1500 mm footprint with level tolerance
- Dedicated electrical circuit required for the 17.9 kW rated power draw at your confirmed voltage and frequency
- Machine ships semi-assembled; vibration assembly and hydraulic station bolt to main frame on site
- PLC display language set to your operator preference before dispatch to avoid commissioning delays
- Mould change procedure covered during operator training, including alignment checks for format switching
- Wear parts list provided with first-order spare recommendations for hydraulic seals and vibration springs
What to Prepare Before Sending an Inquiry
To give you an accurate dispatch date and container plan, share your target block format and daily output requirement, the voltage and frequency at your site, and the pallet size that fits your existing curing racks and forklift. If you have a specific local aggregate in mind — crushed limestone, river sand, or volcanic scoria — let us know so the mould and vibration settings can be matched before the machine leaves Linyi.
Frequently Asked Questions
Q: What is the actual dispatch lead time for the QT4-25 — is it truly in stock or made to order?
A: Stock status is checked at inquiry. When the semi-assembled unit is in the yard, dispatch follows voltage confirmation and factory testing within a defined window. If a production run is needed for your voltage or mould format, we quote the realistic completion date upfront rather than promising a date we cannot meet.
Q: How many pallets and moulds fit in one container, and can I add spare wear parts?
A: The standard container load includes the host machine, one mould set, the JQ350 mixer, and a stack of 850 × 550 mm pallets. Spare wear parts such as hydraulic seals, vibration springs, and additional moulds can be added to the same container if space allows. We confirm the loading plan with photographs before sealing.
Q: What voltage and frequency options are available off the shelf versus requiring a production run?
A: Common industrial voltages for 50Hz and 60Hz markets are held in stock or can be configured quickly from semi-assembled units. Less common voltage requirements require a motor swap or rewind, which adds a defined number of days. We confirm availability at inquiry so your delivery estimate stays accurate.
Q: Can I see packing photographs and a container loading plan before shipment?
A: Yes. Every QT4-25 dispatch includes photographs of the crated machine, pallet stack, mixer, and mould set inside the container, along with a loading diagram. These are sent before the container door closes so you can verify the shipment matches your purchase order.
Q: What customs documentation is provided, and do you support destination import requirements?
A: We prepare commercial invoice, packing list, bill of lading coordination, and certificate of origin where applicable. If your destination country requires specific declarations or formatting for machinery imports, share the requirements at order stage so the documents are ready when the vessel departs.
