SD-700II Rheotex

Product Overview

The SD-700II Rheotex is a rugged, compression-only texture analyzer built by Sun Scientific for environments where conventional testers fail. With a 90mm stroke length, a measuring range of 0.01N to 20N, and a fixed test speed of 60mm/min, it delivers reliable hardness and fracture strength data on factory floors, aboard ships, and at remote field sites.

Engineered for production line physical property testing, the SD-700II serves as a compact hardness tester and fracture strength analyzer that withstands dust, vibration, and temperature swings. Its robust housing and straightforward controls mean operators can start testing within minutes — no lengthy setup or specialized training required.

Whether you need to verify fruit firmness at a packing plant, check the quality of a fresh catch on a fishing vessel, or measure foam compression at a construction site, the SD-700II brings laboratory-grade repeatability to wherever the work happens. The fixed-speed design eliminates operator-dependent variability, ensuring that every test across every shift meets the same standard.

Backed by Sun Scientific's 40+ year track record in physical property testing instruments, the SD-700II Rheotex is trusted by quality control teams in food processing, agriculture, fisheries, manufacturing, and construction worldwide.

How It Works

The SD-700II operates in compression-only mode: a probe descends at a fixed speed of 60mm/min and presses into the sample. The instrument continuously measures the force exerted against the probe as it travels through its 90mm stroke, capturing the peak force (hardness) and the force at rupture (fracture strength).

This fixed-speed approach is the key to consistency. Because the test speed never changes regardless of who operates the instrument, results are directly comparable across shifts, production lines, and facilities. An operator simply places the sample, initiates the test, and reads the result — three steps that require no technical background.

Three built-in measurement modes allow the SD-700II to be adapted to different sample types and test objectives, from single-cycle compression to multi-step texture profiling. The instrument outputs numerical force values that can be recorded manually or transferred to quality control systems for trend analysis and batch tracking.

Applications

• Food production line QC — Measure fruit firmness at the packing line, verify processed food hardness across batches, and ensure texture consistency in confectionery and baked goods.
• Fishery and marine testing — Inspect the quality and freshness of catches directly aboard fishing vessels and processing ships, where salt spray and vibration would damage standard lab instruments.
• Agriculture — Test fruit maturity in the orchard, assess grain hardness at the silo, and evaluate crop quality at the point of harvest for optimal pricing and storage decisions.
• Manufacturing — Measure rubber hardness, plastic deformation resistance, and elastomer compression set on the production floor for incoming inspection and process control.
• Construction materials — Evaluate foam compression characteristics, insulation material firmness, and packaging cushion performance to meet building codes and shipping standards.

Why Choose SD-700II

• Rugged construction — Built for harsh environments including factory floors, ship decks, and outdoor field testing where delicate instruments cannot survive.
• Simple operation — No complex software, no calibration routines before each test. Place the sample, press start, read the result.
• Portable design — Compact enough for a single operator to carry and deploy anywhere — no bench, no power supply, no special setup.
• No training needed — Fixed speed and intuitive controls mean new operators can produce reliable data on their first day.
• Consistent, repeatable testing — The fixed 60mm/min speed eliminates operator-dependent variability, delivering the same result every time.
• 40+ year track record — Sun Scientific has been a trusted name in physical property testing since the 1980s, with instruments deployed in thousands of facilities worldwide.

Frequently Asked Questions