HZ‑7048 Lab Mixer Kneader Rubber Plastic Internal Mixing Machine

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lab internal mixer, mixer‑kneader, banbury kneader machine, rubber compound mixer, silicone mixing kneader, EVA TPR masterbatch mixing equipment

Water cooled Laboratory Mixer Kneader Small Internal Banbury Mixer for Rubber Plastic Compounding

The HZ‑7048 Mixer‑Kneader is a compact water‑cooled internal banbury‑type mixing machine for rubber and polymer laboratories. It adopts pressurized sealed mixing chamber with water‑cooling jacket structure. The wear‑resistant rotors deliver strong shearing and kneading force for raw rubber, silicone, EVA, TPR, color masterbatch, pigment and various chemical compounds.

This lab‑scale kneader features automatic temperature & time control, short batch cycle, easy chamber cleaning for frequent color/material change. It is ideal equipment for new formula R&D, raw‑material test and small‑batch trial production in rubber, plastic and chemical industry.

Equipment summary
Main functions
Corresponding standard
Technical parameters

HZ‑7048 mixer‑kneader consists of pressurized ram cylinder, sealed mixing chamber, hard‑alloy surfacing rotors, water‑cooling circulation system, driving motor and touch‑screen control unit. Mixing chamber, pressure ram and rotors are built‑in water‑jacket for circulating water cooling (0.2‑0.4 MPa cooling water pressure), to stabilize material temperature during kneading process.

Rotors adopt optimized angle and length design to achieve uniform material dispersion. Rotor edges and end faces are overlaid with wear‑resistant carbide alloy for long service life. Secondary corner sealing structure is equipped between mixing chamber and frame for good dust‑proof performance. After mixing cycle completes, the chamber tilts 110° for convenient material discharging.

This lab kneader works for rubber products, silicone goods, cable compounds, EVA, PVC, TPR, high‑fill masterbatch, sponge materials, sealing compounds and other polymer formulations. Multiple volume options (1L‑75L) are available for selection.

Water‑cooled Jacket Structure
Mixing chamber, ram and rotors support circulating water cooling, keep stable processing temperature for rubber and plastic compounding.
Pressurized Sealed Mixing Chamber
Pneumatic pressure ram provides compression force during mixing; sealed structure reduces powder flying‑off and improves kneading efficiency.
Wear‑Resistant Alloy Rotors
Rotors with carbide surfacing, optimized geometric design for high‑efficiency shearing, dispersion and homogenization of polymer blends.
Automatic Temperature & Time Control
Touch‑screen controller sets mixing time, temperature and working parameters; automatic batch running for repeatable mixing results.
Easy‑to‑Clean Chamber
Smooth inner cavity, convenient disassembly, fast cleaning when switching different materials or colors.
Tilting Discharge Design
Mixing chamber tilts 110° for quick material unloading, easy sample collection after kneading.
Compact Lab‑Scale Volume
1L lab volume, short batch cycle (6‑10 minutes per batch), equivalent capacity of two open mixing mills, low footprint, easy installation & maintenance.
Multiple Capacity Optional
Optional chamber volume:1L / 2L / 3L /5L /10L up to 75L to satisfy different trial‑batch demands.

Item	Specification
Model	HZ‑7048
Nominal Chamber Volume	1 L
Main Drive Motor	3.75 kW
Tilting Motor	0.2 kW
Tilting Discharge Angle	110°
Air Compressor Power	2.2 kW
Cooling Water Pressure	0.2‑0.4 MPa
Electric Heating Power	1 kW
Machine Weight	800 KG
Overall Dimension (L×W×H)	1.6 × 0.9 × 1.9 m