Clay Brick Machinery · Category 04

Vacuum Extruder & Brick Forming Machinery

The vacuum extruder is the main forming machine in a clay brick plant. It removes air from prepared clay, compresses the material and forms a continuous clay column through the brick die or mold.

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Vacuum Extruder & Brick Forming Machinery

Main Forming Machine for Clay Brick Production

A correctly selected vacuum extruder improves brick density, strength and shape accuracy. It must match the clay preparation section, cutter speed, brick type, brick size and daily plant capacity.

Main Function

Vacuum brick forming

Removes air, compresses clay and forms a continuous column through the die.

Model Examples

JKR28 → JKR50 / VP-40 → VP-85

Single-stage, double-stage and heavy-duty vacuum extruders.

Capacity Range

8,000 – 45,000 pcs/h

From small lines to large continuous industrial production.

Best For

Solid, hollow & perforated bricks

Tunnel kiln, Hoffman kiln and hybrid Hoffman kiln plants.

Equipment in This Category

The main machinery and items NES can supply or source for this section of the clay brick production line. Final model, capacity and configuration are confirmed after project review.

Single Stage Vacuum Extruder

Double Stage Vacuum Extruder

Heavy-Duty Vacuum Extruder

Vacuum Pump System

Brick Die / Mold

Selection Points

Brick type: solid, hollow or perforated
Clay plasticity and moisture level
Required hourly forming capacity
Vacuum level and pump configuration
Brick die design and wear part planning

Connected Production Flow

Where this section sits in the clay brick production line:

Extruding Mixer→Vacuum Extruder→Brick Die→Clay Column→Automatic Cutter→Green Brick Setting

Reference Specification Table

Note: The following specifications are typical reference data for project selection. Final motor power, capacity, vacuum level and configuration should be confirmed according to clay condition, brick type, brick size and supplier quotation.

Model / Machine	Technical Specification	Motor Power	Typical Capacity	Additional Info
JKR28 Vacuum Extruder	280 mm class screw diameter, vacuum forming	55–75 kW	8,000–12,000 pcs/h	For small brick lines and standard brick sizes
JKR35 Vacuum Extruder	350 mm class screw diameter, double-stage option	90–110 kW	12,000–18,000 pcs/h	Common for medium capacity plants
JKR40 Vacuum Extruder	400 mm class screw diameter, heavy-duty forming	110–132 kW	16,000–25,000 pcs/h	Suitable for automatic tunnel kiln lines
JKR45 / VP-50/50-S	450–500 mm class double-stage vacuum extrusion	160–220 kW	25,000–35,000 pcs/h	For large automatic clay brick plants
JKR50 / VP-60/60-S	500–600 mm class high-capacity extrusion	200–315 kW	30,000–45,000 pcs/h	For continuous industrial production lines
VP-75/75-S / VP-85/85-ES	Extra heavy-duty double-stage vacuum extruder	315–500 kW	Project based high capacity	For large industrial hollow/perforated brick projects

Why Source This Machinery From NES

Project-Based Selection

NES recommends machinery by clay type, brick size, daily capacity, kiln technology, dryer system and client budget — not from a one-size catalog.

China Sourcing Support

We work with experienced China-based machinery and kiln partners to give clients suitable equipment, technical drawings, installation guidance and spare parts.