The machine adopts an LCD-controlled automatic system with real-time display of load, time, and testing curves. The loading process is fully automatic with constant stress (or adjustable loading rate), ensuring high precision and stable performance.It is widely used in laboratories, quality inspection centers, construction material testing institutes, and research institutions.

Automatic Constant Stress Compression Testing Machine

Model:TDYE-300SP

I. Product Overview

The Automatic Constant Stress Compression Testing Machine is a new-generation testing equipment designed for the compressive strength testing of building materials. It is mainly used for cement mortar specimens (40×40×160 mm), and can also be optionally equipped for concrete flexural testing, lime-soil compressive testing, and 70.7×70.7 mm cube compression testing.

II. Main Functions and Features

LCD screen control system with a simple and intuitive user interface;

Fully automated testing process, one-button completion of the test;

Real-time display of force-time curves and test data;

Constant stress loading mode with adjustable loading rate;

High-precision force measurement system with stable and reliable hydraulic loading;

Automatic data acquisition and comparative analysis function;

Equipped with an A4 printer for outputting complete test reports;

Supports laboratory networking for data uploading and management;

Compact structure, stable operation, and easy maintenance;

Optional accessories for flexural strength testing and cubic compression testing.

III. Technical Parameters

Max Test Force: 300 kN

Accuracy Class: Better than ±1%

Test Force Range: 4%–100% of full scale

Force Error: ±5%

Loading Speed: Standard 2.4 kN/s (adjustable constant load)

Platen Clearance: 180 mm

Upper Platen Size: 100 mm

Lower Platen Size: 185 mm

Power Supply: 380V, 50Hz, 3-phase 4-wire system

Machine Weight: 500–550 kg

Main Unit Dimensions: 800 × 400 × 1200 mm

Packing Size (Main Unit): 950 × 500 × 1460 mm

Computer Cabinet Size: 760 × 600 × 650 mm

Optional Flexural Attachment Package Size: 700 × 240 × 250 mm

IV. Referenced International Standards

EN 196-1 – Methods of testing cement: Determination of strength

EN 12390-3 – Testing hardened concrete: Compressive strength of test specimens

ASTM C109 – Compressive strength of hydraulic cement mortars

ASTM C39 – Compressive strength of cylindrical concrete specimens

ISO 679 – Cement test methods: Strength determination

GB/T 17671 – Method of testing cement mortar strength (China standard)

GB/T 50081 – Standard for test methods of concrete mechanical properties

V. Applications

Cement mortar compressive strength testing (40×40×160 mm)

Concrete cube compression testing (70.7 mm or other sizes)

Building materials strength testing

Road and bridge engineering material testing

Quality inspection laboratories

Construction research institutes