ESCR Environmental Stress Crack Resistance Tester

Overview of the ESCR Tester

The QualiESCR 100 serves as a dedicated testing station that measures how ethylene plastics behave when mechanical strain and chemical contact occur at the same time. Polymer components exposed to liquids like industrial soaps, wetting chemicals, oils, or detergents can develop stress cracks over extended exposure periods. This instrument places notched, bent specimens inside heated fluid tanks so your team can record when fractures form and inspect resin durability under strictly controlled parameters.

Qualitest supplies this setup as a complete hardware package centered around a 50-liter constant temperature liquid bath. With an accompanying sample bending fixture, specimen transfer pliers, and a dedicated nicking cutter, you can complete standardized ESCR testing without needing to purchase separate third-party preparation devices.

Compliance & Standards

This evaluation system corresponds to globally recognized testing protocols:

• ASTM D1693-01: Standard test method for environmental stress-cracking of ethylene plastics.
• ASTM D883: Standard terminology relating to plastics.

Following these published benchmarks allows your facility to perform environmental stress cracking resistance testing that satisfies rigorous supply chain requirements and international quality benchmarks.

Key Features

• 50-Station Capacity in a 50L Tank: Houses up to 50 individual test tubes simultaneously inside an insulated 50-liter bath, allowing your technical personnel to process substantial sample quantities in parallel.
• Dual-Point Thermal Control: Operates at 50°C ± 0.5°C or 100°C ± 0.5°C using high-stability operational amplifiers and dual-integral A/D conversion circuitry, paired with a centrifugal circulating stirrer that keeps fluid temperatures uniform throughout the chamber.
• 304 Stainless Steel Liner: Features an internal tank constructed from grade 304 stainless steel to protect against heat and corrosion when using soft water or stator oil as heat-conducting liquids.
• High-Speed Steel Nicking Device: Utilizes a hardened HSS cutter with a 14° ± 2° blade angle, 19 ± 0.1 mm blade length, and an adjustable depth stroke up to 13 mm to make smooth, repeatable notches up to 3.5 mm deep on standard 38 mm by 13 mm coupons.
• Complete Specimen Tooling Kit: Includes an ergonomic bending device and transfer pliers specifically matched to the 12 mm inner groove of the specimen holders, reducing preparation errors before immersion.

Product Applications & Operating Environments

This environmental stress cracking resistance tester is configured for indoor quality control facilities, resin evaluation centers, and industrial piping manufacturing plants. It determines how bent polyethylene formulations, PVC compounds, and ethylene-based plastics endure chemical degradation from surface-active agents, including industrial cleaners, oils, and detergents.

Because the system functions in ambient workplace environments between 10°C and 35°C, your technicians can set up the equipment in standard laboratory spaces without specialized room conditioning. Drawing 3 kW of electrical load with 220V (50Hz) or 110V options available, the unit integrates smoothly into industrial testing benches.

QualiESCR™ 100 Technical Specifications

Configuration

• One Thermostatic bath
• One Nicking device
• One Sample bending device
• One set of Sample Transfer Pliers
• Three Sample Holders (if additional, please purchase separately)
• Three Test Tubes (please purchase separately if necessary)
• One Standard Sample
• Three Blades