HAITAI HTW320 User Manual

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Preface
Thank you very much for you purchase of the HAITAI Injection Machine.
The injection machine is good in capacity, superb in workmanship, and easy to operate.
The inside five point toggle clamp unit has many patent technology of our company, which enable the
machine to have a rigid structure and to be difficult to deform, other feature like force symmetry, smooth
movement, low noise. The uses of hollow spherical structure of the fixed platen design increase the
precision of the products. The flexible tie bar and nut to make sure that the tie bar free from fracture. The
widening space of open stroke and tension bar, therefore the use of the scope has been further improved.
The twin toggles of clamp structure that is five points arranged slanting is patent technique of our
company. The clamp unit is good in rigidity, no distortion, symmetry in force, less in noise and steady to
run. The fixed platen is designed hollow
The double balanced injection unit has stable performance and rigid structure. The low-speed-high
torque motor direct drives plasticizing. The capacity of plasticizing has been improved with a high
efficiency. The patent technology of double injection unit save the energy and increase the injection speed.
The use of high, medium and low-pressure screw is able to meet the thick-walled, thin-walled products
molding requirement.
The heat resistance type heated ring is PID controlled by computer. It features as heating fast, stable
temperature, the sensitive and accurate temperature conversion.
The "Mechanical - Electrical - Hydraulic" safety device ensure safe and reliable. The machine has a
reasonable layout and beautiful appearance. It can be easily operated and maintained.
The speed of opening/closing mold, change of pressure, the amount of pre-plasticizing, the switch
point from injection to holding, and the multi stage of injection is controlled by computer and the
movement is finished by the hydraulic system. These features result in a high precision, fast response,
integration of "mechanical –electric-hydraulic‖ advanced control systems.
The hydraulic system incorporates proportional pressure control; the main components are
international brand-name products.

HAITAI HTW320 Specifications

General

Brand	HAITAI
Model	HTW320
Category	Industrial Equipment
Language	English

Summary

Chapter 1 Technical Parameter and Structure

1.1 Main Parameter Table

1.3 Working Principle

Explanation of how the injection molding machine operates in manual, semi-automatic, and automatic modes.

1.5 Preparation Before Purchase

Guidance on ordering spare parts and selecting machine specifications based on product needs.

Chapter 2 Machine Installation

2.1 Preparation Before Installation

2.3 Installation and Commissioning

Instructions for preparing the installation foundation, site, and performing commissioning tests.

Chapter 3 Safety

3.1 Four Safety Cautions

Critical safety rules to follow during machine operation, maintenance, and handling.

3.2 Manning and Environment Management

Operator qualifications, training requirements, and environmental considerations for safe operation.

3.3 Machine Main Safety Warnings

Comprehensive warnings covering electrical, mechanical, thermal, and pressure hazards.

3.4 Electrical Safety Equipment

Description of safety devices, inspection procedures for test runs, and periodical checks.

3.5 Mechanical Safety Devices

Details on mechanical clamping safety devices, their function, and inspection steps.

3.6 Hydraulic Safety Devices (Optional)

3.7 Safety Operation Guidelines

Specific safety practices for mechanical, hydraulic, and electrical operations of the machine.

Chapter 4 Operation

4.3 Hydraulic Oil Pre-heating

4.4 Hydraulic System Oil Monitoring

4.9 Machine Activation Sequences

4.10 Mold Mounting and Dismounting

Steps for mounting molds, adjusting clamping force, and dismounting molds safely.

4.11 Slide Plate Adjustment Procedures

4.12 Injection Working Steps

Detailed procedure for injection, including barrel temperature, material feeding, and parameters.

4.13 Finishing Injection Operations

4.14 Barrel and Screw Replacement

Instructions for replacing barrel and screw, including mechanical structure and dismounting.

4.15 Plastic Material Replacement

4.16 Injection Nozzle Selection and Replacement

4.17 Screw and Barrel Selection Criteria

4.18 Backpressure Adjustment Methods

Chapter 5 Machine Maintenance

5.1 Lubrication Guidelines

5.2 Hydraulic Unit Maintenance

Covers hydraulic oil selection, quality control, maintenance, air filter, and oil filter.

5.3 Barrel and Screw Cleaning Procedures

Steps for partial and complete cleaning of the barrel and screw, including safety measures.

5.4 Daily Maintenance Checks