LATERAL EXTENSOMETER

Lateral Extensometer

Product Code: MSI 2050

The Lateral Extensometer is a high-precision mechanical metrology instrument designed to determine the lateral extension (radial deformation) of concrete cylinder specimens while undergoing axial load testing under compression. This specialized laboratory tool is essential for civil engineering researchers and QA managers looking to accurately analyze concrete elasticity characteristics, strain parameters, and Poisson’s ratio metrics.

Engineered to fit standard 150 mm diameter x 300 mm high cement concrete cylinders, the unit features a balanced structural architecture consisting of two movable frames pivoted smoothly at one end. The extensometer safely clamps directly onto the specimen cylinder body via tightening thumbscrews, transferring subtle physical expansion changes directly to a high-precision, built-in dial gauge indicator.

🎯 Applications

• Determination of Lateral Extension & Expansion Strain in Concrete

• Evaluation of Poisson's Ratio & Elastic Modulus Characteristics

• High-Level Structural Research & Concrete Mix Component Design

• Civil Engineering & Third-Party Material Metrology Laboratories

• Ready Mix Concrete (RMC) Specialized Testing Centers

• Academic Research & Engineering University Testing Facilities

⭐ Features

• Specimen Sizing Precision: Configured specifically for standard 150 mm x 300 mm concrete test cylinders.

• Dual Movable Frame Design: Dual-ring pivoting structural layout guarantees true radial alignment and distortion-free mechanical transfer.

• High-Resolution Metrology: Equipped with a precision mechanical dial gauge reading down to 0.002 mm with a total travel range of 5 mm.

• Zero Adjustment Control: Features a specialized anvil set screw system to quickly reset the dial gauge to zero before load application.

• Secure Specimen Fixing: Fastens tightly to concrete walls via heavy-gauge, tip-hardened tightening thumbscrews.

• Premium Storage Protection: Supplied complete in a fitted, velvet-lined wooden carrying case to preserve tool calibration during transport.

⚙️ Technical Specifications

Parameter Specification

Product Code : MSI 2050

Compatible Specimen Size : 150 mm Diameter x 300 mm Height Cylinders

Dial Gauge Resolution : 0.002 mm

Dial Gauge Total Range : 5 mm

Frame Design : Dual Movable Ring Layout, Pivoted End

Zero Setting Mechanism : Fine Thread Anvil Adjustment Screw

Storage Case Type : Premium Fitted Wooden Carrying Case

Operation Mode : Mechanical / Manual Setup

📦 Standard Supply Includes

• Lateral Extensometer Movable Ring Assembly

• High-Precision Dial Gauge (0.002 mm x 5 mm)

• Precision Anvil and Zero-Setting Screw Set

• Specimen Tightening Thumbscrews

• Heavy-Duty Protective Wooden Storage Case

• Calibration Sheet and Operation Manual

🔬 Working Principle

A cured 150 mm x 300 mm concrete cylinder is centered inside a compression testing machine. The lateral extensometer frame is placed around the middle section of the cylinder and locked securely into place by adjusting the tightening screws until the structural pivots hold firm.

The dial gauge tip is positioned so it rests cleanly on the measuring anvil face. Using the fine-thread anvil screw, the dial pointer is calibrated perfectly to zero. As the compression platens apply axial load, the concrete cylinder bulges radially outward. This lateral expansion forces the pivoted frames to separate slightly, moving the dial gauge tip against the anvil to display live deformation down to 0.002 mm.

💡 Advantages

• Enables advanced elastic deformation calculations crucial for designing safe high-rise and seismic structural concrete mixes.

• Extremely high visual resolution (0.002 mm) allows operators to capture subtle microscopic strain movements well before sample failure.

• Rigid, zero-flex mechanical links prevent external frame vibration from skewing final calculation logs.

• Fitted protective wooden case shields the sensitive dial pointer mechanism from impact shock in busy laboratory environments.

🤝 Why Choose Multitech Scientific Instruments?

• Precision-engineered concrete testing equipment.

• Manufactured strictly to International Standards.

• High-quality fabrication and robust material choices.

• Consistent and reliable performance.

• Competitive pricing models.

• Excellent after-sales technical support.

• Trusted by laboratories, contractors, consultants, and educational institutions globally.

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