In the rubber and plastics industry, the vulcanization process is the critical transformation that turns raw polymer compounds into finished products with the desired mechanical properties, durability, and performance characteristics. From automotive tires and industrial seals to footwear soles and medical tubing, the quality of the vulcanization process directly determines product success. At Guangdong Lixian Instruments Co., Ltd. , we provide precision testing equipment engineered to meet these critical challenges. Our HZ-7001A Rotorless Rheometer (Moving Die Rheometer) delivers accurate, repeatable, and standards-compliant vulcanization characterization, helping manufacturers optimize formulations, control quality, and ensure consistent product performance -
Why Rotorless Rheometer Testing is Essential for Rubber & Plastic Materials
The vulcanization process involves complex chemical crosslinking that transforms rubber from a thermoplastic to an elastomeric state. Without precise characterization, manufacturers risk:
Inconsistent cure states leading to under-cured (weak) or over-cured (brittle) products
Processing difficulties due to incorrect scorch times affecting mold filling
Batch-to-batch variability compromising product reliability
Material waste from improper cure parameters
Non-compliance with industry standards and customer specifications
The HZ-7001A Rotorless Rheometer from Guangdong Lixian Instruments Co., Ltd. simulates the vulcanization process in a controlled laboratory environment, providing critical data on cure characteristics and enabling manufacturers to predict and control material behavior -1-8.
Key Features of the HZ-7001A Rotorless Rheometer
Precise Vulcanization Characterization: The HZ-7001A accurately measures key vulcanization parameters essential for rubber and plastic compound development and quality control:
Scorch time (ts1, ts2): The time when vulcanization begins, indicating processing safety
Optimum cure time (t90): The time required to achieve 90% of full cure
Minimum torque (ML): Related to compound viscosity and processability
Maximum torque (MH): Related to crosslink density and final material stiffness
Cure rate index: The speed of the vulcanization reaction -1-4
Advanced Closed-Cavity Design: The HZ-7001A features a truly sealed mold cavity with technology comparable to Alpha (formerly Monsanto) standards. This closed system ensures excellent repeatability and test data comparable with global industry standards. The sealed cavity prevents material loss and ensures consistent test conditions, placing it at an internationally leading position in the industry -1-2.
Precise Temperature Control: The system achieves exceptional temperature control with:
Temperature range: Room temperature to 200°C
Temperature fluctuation: ≤ ±0.15°C to ±0.3°C
Fast heating rate: 15°C/min with recovery time <1.5 minutes after closing
High-Accuracy Torque Measurement: Equipped with advanced force sensor technology, the HZ-7001A delivers:
Torque resolution: 0.001 N·m
Torque accuracy: 0.3%
Multiple torque unit options: N.m, N.cm, kg.m, kg.cm, lb.in, and more -1-4
Comprehensive Data Acquisition: The system features:
Data acquisition rate: 200 times per second for detailed cure curve resolution
Multi-language support: English, Simplified Chinese, Traditional Chinese
Intelligent Software Platform: The instrument includes powerful software for:
Technical Specifications at a Glance
| Parameter | Specification |
|---|---|
| Model | HZ-7001A Rotorless Rheometer |
| Temperature Range | Room temperature to 200°C |
| Temperature Fluctuation | ≤ ±0.15°C |
| Temperature Display Resolution | 0.01°C |
| Heating Rate | 15°C/min |
| Temperature Recovery Time | < 1.5 minutes |
| Torque Range | 0-20 N·m (0-5, 0-10, 0-20 options) |
| Torque Resolution | 0.001 N·m |
| Torque Accuracy | 0.3% |
| Swing Frequency | 100 r/min (1.66 Hz) |
| Swing Angle | ±0.5°, ±1°, ±3° (selectable) |
| Data Acquisition Rate | 200 times/second |
| Compliance Standards | GB/T 16584, ISO 6502, ASTM D5289 |
| Calculated Parameters | ts1, ts2, t10, t30, t50, t70, t90, Vc1, Vc2, ML, MH |
| Power Supply | 220V ±15V, 50Hz |
| Air Pressure Requirement | 0.5 – 0.65 MPa (user-supplied 8mm tubing) |
How the HZ-7001A Enhances Rubber & Plastic Quality Assurance
The HZ-7001A Rotorless Rheometer provides critical capabilities for rubber and plastic manufacturers, compounders, and quality control laboratories -1-4:
Formulation Development: Optimize compound recipes by evaluating how different ingredients affect cure characteristics—scorch time, cure rate, and final crosslink density
Batch-to-Batch Consistency: Verify that incoming raw materials and production batches meet specified cure parameters, ensuring consistent processing and final product properties
Process Optimization: Determine optimal cure times and temperatures for new molds and products, minimizing cycle times while ensuring complete cure
Quality Control: Rapidly screen compounds to identify formulation errors or contamination before production
Raw Material Validation: Test new suppliers or material lots to ensure they produce equivalent cure characteristics
Failure Analysis: Investigate field failures by comparing cure characteristics of suspect materials against specifications
R&D Support: Accelerate development of new compounds with tailored cure profiles for specific applications
Applications Across the Rubber & Plastics Industry
The HZ-7001A serves diverse applications throughout the rubber and plastics industry -1-6:
Automotive Rubber: Tires, seals, gaskets, hoses, bushings, and vibration dampers
Industrial Rubber: Conveyor belts, rollers, diaphragms, and expansion joints
Footwear: Soles, midsoles, and rubber components
Medical: Rubber stoppers, syringe plungers, and medical tubing
Consumer Products: Rubber grips, mats, and sporting goods
Wire & Cable: Rubber insulation and jacketing compounds
Seals & Gaskets: O-rings, custom profiles, and sealing components
Standards Compliance for Global Acceptance
The HZ-7001A supports testing in accordance with key international standards for rubber vulcanization characterization -1-4-10:
GB/T 16584 – Rubber – Determination of vulcanization characteristics using a rotorless curemeter
ISO 6502 – Rubber – Measurement of vulcanization characteristics using rotorless curemeters
ASTM D5289 – Standard Test Method for Rubber Property—Vulcanization Using Rotorless Cure Meters
ISO 3417 – Rubber – Measurement of vulcanization characteristics with the oscillating disc curemeter
Working Principle
The HZ-7001A operates on a proven principle widely accepted in the rubber industry -1-4:
The rubber sample is placed in a nearly completely sealed cavity maintained at the test temperature. The cavity consists of upper and lower sections, with the lower section oscillating at a small amplitude (swing angle ±0.5°, ±1°, or ±3°) at a frequency of 100 r/min. This oscillation subjects the sample to shear strain. The system measures the torque (force) exerted by the sample in response—a value directly related to the material's shear modulus.
As vulcanization begins, the sample's shear modulus increases, and the torque rises. The computer continuously displays and records the torque-time relationship, generating the vulcanization curve. The curve shape provides crucial information about the material's cure characteristics, including scorch time, cure rate, and final crosslink density -1-4.
A Trusted Partner in Precision Testing
As a leading manufacturer of testing instruments and detection equipment, Guangdong Lixian Instruments Co., Ltd. combines decades of instrument R&D experience with deep industry knowledge. Founded in 2000 and headquartered in Dongguan, Guangdong province, the company operates a modern 6000-square-meter production facility and serves clients in over 60 countries with products certified to CE, ISO, ASTM, and other international standards -7.
Our professional R&D team, rigorous quality management systems, and advanced manufacturing capabilities ensure that every HZ-7001A undergoes strict quality inspection, performance testing, and validation before shipment, guaranteeing stable and reliable long-term operation in demanding laboratory or production environments -1-4.
Comprehensive Customer Support
Beyond high-quality testing equipment, Guangdong Lixian Instruments Co., Ltd. provides complete support to ensure your success:
12-month product warranty with lifetime service support
Pre-sales consultation: Expert guidance to select appropriate test methods and equipment parameters based on your specific rubber and plastic materials
Installation and training: On-site commissioning and operation training to ensure your team quickly masters equipment use
After-sales service: Professional maintenance team providing timely repairs, spare parts replacement, and technical support to minimize production disruption
Calibration services: Regular calibration to maintain accuracy and compliance
Test with Confidence, Cure with Certainty
In the competitive rubber and plastics industry, where material performance directly impacts product safety and customer satisfaction, only manufacturers who rigorously characterize vulcanization can ensure consistent quality and reliable performance. The HZ-7001A Rotorless Rheometer from Guangdong Lixian Instruments Co., Ltd. offers the precision, reliability, and standards compliance needed to optimize your formulations, control your processes, and deliver products that perform as expected—every time.
Whether you are a small-scale compounder or a large-scale manufacturer serving automotive, industrial, or consumer markets, our testing equipment delivers the accuracy and dependability required to protect your reputation and ensure product success.
Contact Guangdong Lixian Instruments Co., Ltd. today to learn more about how our rotorless rheometer testing equipment can enhance your rubber and plastic material evaluation processes. Request a detailed technical specification, arrange a product demonstration, or consult with our application specialists to discuss your specific testing requirements.
Guangdong Lixian Instruments Co., Ltd. — Precision Engineered for Rubber & Plastic Excellence.
