Description
Fast dispatch from stock — QTJ4-25 semi-automatic block machines are held in inventory with standard moulds and pallets so your project deadline is not waiting on a factory slot.
Technical Specifications
| Parameter | Value |
|---|---|
| Model | QTJ4-25 |
| Product Type | Automatic Hydraulic Concrete Block Making Machine |
| Rated Power | 17.9 kW |
| Control System | PLC |
| Overall Dimensions (L×W×H) | 6400 × 1500 × 2700 mm |
| Net Weight | 2500 kg |
| Molding Cycle | 25 s (basis not stated in source — confirm block format / material / thickness) |
| Output Capacity | 960 pcs/h, 7680 pcs/day (based on 400×200×200mm hollow block, 4 pcs/mould) |
| Pallet Size | 850 × 550 × 20 mm |
| Vibration Force | 60 kN |
| Vibration Frequency | 2800 r/min |
| Mould Format | Hollow, solid, paver, kerbstone |
| Automation Level | Semi-automatic |
| Stacking Method | Manual pallet handling with trolley |
| Configuration | Host machine 1 set, block mould 1 set, JQ350 mixer |
| Standards | CE (declaration where applicable) |
Application Suitability
| Application | Material or Output |
|---|---|
| Block and paver production plants | Hollow, solid, paving, and kerbstone formats from crushed stone, cement, and local aggregate |
| Construction contractors producing on-site | Standard concrete blocks for housing and development projects using site-available sand and gravel |
| First block plant entrepreneurs | Semi-automatic hollow and solid block output to establish initial market presence |
Why Arrival Date Matters More Than Cycle Time for a Project Deadline
A stocked stationary block machine in stock removes the production lead time from your schedule.
When a contractor is building a housing project and the block supply falls behind, the last thing needed is a machine that sits in a factory queue for weeks. I have seen site managers order based on the fastest cycle time on paper, only to discover the machine was built to order and their foundation crews were standing idle for a month waiting for the press to arrive [NEED_CITE: typical lead times for built-to-order concrete block machines]. The QTJ4-25 is held as a stocked model, meaning the machine, its standard mould, and the JQ350 mixer are ready for container loading without waiting for a production slot.
Dispatch Timeline and Container Loading Plan
The stationary block machine in stock is dismantled into its main assemblies for shipment, with the host frame, vibration table, hydraulic station, and mould packed separately to maximise container space. A loading plan is confirmed before dispatch so you know exactly which container holds the press, which holds the mixer and pallets, and when each is expected at your port. This clarity matters when your curing area is already poured and your crew is on site waiting to start production.
Arrival Estimate Quoted Before You Commit
Every destination port has different transit times and clearance procedures. Rather than giving a vague shipment window, the arrival estimate for the QTJ4-25 is calculated against your specific port once the destination is confirmed. This includes the inland transport to the loading port, ocean transit, and an indication of typical clearance duration at your end [NEED_CITE: average container transit and clearance times by major destination region]. Buyers working to a fixed project completion date can then work backwards from that arrival estimate to confirm whether the machine lands before their block demand peaks.
Reading the QTJ4-25 Specifications Against Your Block Format
The 25-second moulding cycle and 960 pieces per hour output are rated at 400×200×200mm hollow blocks with four cavities per mould. If your market sells a different format — a thinner wall hollow block, a solid paver, or a kerbstone — the actual cycle time and daily output will differ. The 60 kN vibration force at 2800 r/min must also be matched to your specific mix design and local aggregate to achieve consistent block strength, as the same vibration setting that works with clean river sand will produce different results with high-clay content material. The 850×550×20mm pallet size determines what fits in your curing area and what your existing forklift can handle, so verifying this dimension against your site infrastructure before ordering prevents a mismatch on arrival.
What Happens When Stock Availability Is Not Confirmed Before Payment
Buyers who pay a deposit without confirming physical stock status sometimes find their machine enters a production queue rather than a dispatch queue. The result is a multi-week delay that was never part of the project plan, with curing racks sitting empty and block orders being fulfilled from expensive third-party suppliers in the meantime [NEED_CITE: cost impact of delayed equipment delivery on construction project timelines]. Confirming that the specific model and mould configuration you ordered is physically available in the warehouse before transferring funds eliminates this risk entirely.
Why This Supplier Holds Stock for Fast Dispatch
Block machinery is our single focus, so the QTJ4-25 is specified as a matched system with its mould, pallets, and JQ350 mixer rather than assembled from separate suppliers at the time of order. Standard mould formats for hollow, solid, paver, and kerbstone blocks are kept in inventory alongside the host machines, which means adding a second mould or a set of spare pallets to your shipment does not push back the dispatch date. Voltage, frequency, and PLC display language are confirmed against your site conditions before the machine leaves the warehouse, preventing a commissioning delay caused by a mismatched electrical configuration [NEED_CITE: common commissioning delays caused by voltage and frequency mismatches in exported machinery].
Documentation & Verification
- Dispatch lead time and container loading plan confirmed before payment transfer
- Machine dismantling and packing photographs provided for each shipment
- Arrival estimate calculated against your destination port before order confirmation
- Factory test record on your specified block format before the machine leaves the warehouse
- Voltage, frequency, and PLC language confirmation sheet signed off before dispatch
Installation, Commissioning & Support
- Foundation pad poured to the 6400 × 1500 mm footprint with level tolerance specified in the layout drawing
- Dedicated electrical circuit rated for the 17.9 kW total load with correct voltage and frequency confirmed before connection
- Machine reassembled from its shipped modules with vibration table alignment checked on your cured foundation
- PLC display language and control parameters set to your confirmed specifications during the commissioning visit
- Operator training covers mould change procedure, daily lubrication points, and the 25-second cycle workflow
- Wear parts list provided with the first shipment so spares are on hand before the first replacement is due
What to Include in Your Inquiry
To confirm whether the stocked QTJ4-25 configuration matches your project requirements, specify your target block format and dimensions, the daily output you need to sustain your site demand, your local aggregate type and cement availability, and your site voltage and frequency. If you already have curing racks and forklifts on site, share those dimensions so the 850×550mm pallet can be verified against your existing equipment.
Frequently Asked Questions
Q: Which stationary block machine models and moulds are currently in stock and ready to ship?
A: The QTJ4-25 semi-automatic machine is held in stock with standard hollow, solid, paver, and kerbstone moulds available for immediate inclusion in your shipment. Pallets in the 850×550×20mm size and the JQ350 mixer are also stocked, so a complete line can be dispatched without waiting for custom production runs to finish.
Q: What is the dispatch lead time and estimated arrival at my port?
A: Once your destination port and electrical specifications are confirmed, the machine can be loaded into its container within a short dispatch window rather than a multi-week production lead. The arrival estimate is then calculated based on ocean transit time to your specific port and shared with you before payment so your project schedule can be planned around a firm date.
Q: How is the machine dismantled and loaded into containers for shipment?
A: The QTJ4-25 is broken down into its main assemblies — host frame, vibration table, hydraulic station, and mould — to fit standard container dimensions efficiently. Each component is secured for ocean transport, and packing photographs are taken and shared with you so the condition of every item is documented before the container is sealed.
Q: What voltage and frequency configurations are available from stock?
A: The stocked machines can be configured to your site voltage and frequency before dispatch rather than shipped with a default setting that may not match your local grid. Confirming these details during the inquiry stage ensures the PLC, motors, and control panel are wired correctly and the display language matches your operators before the machine arrives.
Q: Can I add pallets and spare wear parts to the shipment without delaying dispatch?
A: Standard 850×550×20mm pallets and common wear parts for the QTJ4-25 are held in inventory alongside the machines, so adding them to your container does not require a separate production cycle. This means your complete order ships together and arrives together, avoiding a situation where the machine is on site but essential consumables are still weeks away.
