QST1800 / QST1500

QST1800 / QST1500 Fully Automatic Concrete Block Making Machine

Servo-driven, high-output flagship. Up to 220,000 standard bricks per 8-hour shift on the QST1800.

Our largest vibration-press block machine, built on imported hydraulic proportional components, an intelligent PLC touch screen, arch-breaking rapid distribution and extended high-efficiency vibration. One machine, many products, change the mould, change the product.

Capacity: Up to 220,000 standard bricks / 8-hour shift (QST1800)
Category: Fully Automatic Block Making Machines
Customization: Designed to your site and target output
Warranty: 12 months on main components

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Product Description

The QST1800 and QST1500 are servo brick machines combining a high-speed moulding cycle with a sturdy frame. They produce porous bricks and hollow blocks, ceramsite insulation blocks and composite insulating concrete blocks, all with good thermal insulation performance that meets current energy-saving requirements.

Raw materials are flexible: crushed stone powder, sand, gravel and cement, with large amounts of fly ash, slag, steel slag, coal gangue, ceramsite, perlite and other industrial waste able to replace part of the natural aggregate. Because the mould is the only change-over item, the same machine can switch product simply by changing the mould.

Technical highlights: an imported high-efficiency hydraulic proportional system with genuine components for better efficiency and energy saving; an imported intelligent PLC touch screen and genuine electrical components for a higher degree of automation and simpler operation; an arch-breaking rapid distribution device that is especially favourable for porous brick distribution and gives a more even fill; extended high-efficiency vibration technology for shorter moulding time and higher density; and a special high-temperature heat treatment process that makes the mould more wear-resistant and stronger.

The QST1800 takes a 1,400 × 1,400 mm pallet and produces 18 hollow blocks per mould, reaching 27,000–36,000 per 8-hour shift. On the same product the QST1500 takes a 1,350 × 1,150 mm pallet and produces 15 per mould, 22,500–30,000 per shift. For standard bricks (240 × 115 × 51 mm) the QST1800 reaches 110 pieces per mould and 165,000–220,000 per shift.

Key Features

Imported high-efficiency hydraulic proportional system with genuine components, more efficient and energy-saving
Imported intelligent PLC touch screen and genuine electrical components, high automation, easier operation
Arch-breaking rapid distribution device, especially good for porous bricks, more even fill
Extended high-efficiency vibration technology, shorter moulding time, higher density
Special high-temperature heat treatment, moulds more wear-resistant and stronger
Servo drive for accurate closed-loop position, speed and torque control
One machine, many products: porous bricks, hollow blocks, ceramsite insulation blocks, composite insulating blocks
Can absorb large amounts of fly ash, slag, steel slag, coal gangue and other industrial waste

Send us your requirements

Tell us your target output and the raw materials you have, and we will send a detailed quotation.

Technical Parameters

Parameter	QST1800	QST1500
Machine size	15,500 × 5,500 × 3,200 mm	11,500 × 4,550 × 2,800 mm
Pallet size	1,400 × 1,400 × 30 mm	1,350 × 1,150 × 30 mm
Vibration frequency	3,800 – 4,500 times / min	3,800 – 4,500 times / min
Machine weight	34 t	20 t
Moulding method	Vibration + press moulding	Vibration + press moulding
Cycle time	15 – 25 s	15 – 23 s
Vibration force	280 kN	220 kN
Rated pressure	31.5 MPa	31.5 MPa
Installed capacity	104 kW	69.1 kW
Stacker power	3.7 kW	3.7 kW

The pictures and parameters above are for reference only, and the final interpretation right belongs to our company. Final specifications are confirmed in the contract.

Inquire about this machine

Send us your requirements for the QST1800 / QST1500 and we will come back with the machine list, a layout drawing and a price.

The products you want to make and their sizes
The output you need per shift
The raw materials available to you
Site area and available power supply

Enquiry about: QST1800 / QST1500, QST1800 / QST1500 Fully Automatic Concrete Block Making Machine

Frequently Asked Questions

How many bricks per day can the QST1800 really produce?

On a standard 8-hour shift: 165,000–220,000 standard bricks (240×115×51 mm), 81,000–108,000 bricks (240×115×90 mm), 99,000–132,000 Holland bricks (200×100×60 mm) or 27,000–36,000 hollow blocks (390×190×190 mm). Real output depends on your raw material, mix design and how well your operators keep the cycle going.

What is the difference between QST1800 and QST1500?

The 1800 is the larger machine: a 1,400 × 1,400 mm pallet, 34 tonnes, 104 kW and 280 kN of vibration force, so it produces more pieces per mould and more per shift. The 1500 uses a 1,350 × 1,150 mm pallet, weighs 20 t, draws 69.1 kW with 220 kN of vibration force. It is the better match for a smaller budget or limited power supply.

Can I use cheap local sand and industrial waste?

Yes, and most of our customers do. Fly ash, slag, coal gangue and crushed stone powder can replace a large part of the natural aggregate. Send us a sample analysis or just a description of what is available locally and we will advise on the mix design and mould steel.

Does it come with a mould?

The machine ships with one mould of your choice. Extra moulds are priced separately, tell us your full product list at quotation time so we can price all the tooling together.