Vane Inspection Set: Torvane Pocket Shear Vane, Metal

Torvane Pocket Shear Vane: Fast Soil Strength Testing Anywhere

The Torvane Pocket Shear Vane Tester is a portable and efficient tool for determining the shear strength of cohesive soils. Ideal for field and lab use, it provides quick, precise measurements on excavations, trenches, test pits, and thin wall or split core soil samples. Professionals such as geotechnical engineers, field testing technicians, OSHA inspectors, and backhoe operators rely on this tool to assess soil stability rapidly.

Key Features

• Three Interchangeable Vanes – The set includes vanes (16x32, 20x40, 25x50.8 mm) for testing soils from soft to firm.
• Portable and Lightweight – Compact size (500x300x100 mm), stainless steel construction, and heavy-duty carrying case make it easy to transport.
• Easy to Use – Minimal setup; insert the vane and rotate until the soil matrix fails. The indicator needle retains peak readings until reset.
• Calibrated for Accuracy – Extension rods are calibrated for soil friction, ensuring precise measurements. Comes with calibration certificate and conversion table.
• Versatile Application – Works on flat surfaces, trenches, test pits, and fully-saturated, fine-grained soils. Measures undrained strength (CU) in soft to stiff clays.
• Fast Measurements – Quickly determines approximate shear strength without preparing or trimming samples.

How It Works

The Torvane Pocket Shear Vane measures soil strength by pressing the vane into the soil and rotating it slowly until the matrix fails. The torsional spring inside the T-handle records torque, which the dial converts to shear strength. The indicator needle holds the peak value, allowing accurate and repeatable readings. Multiple readings can be taken from different failure planes for thorough soil characterization.

This tool can measure undrained strength from 0 to 1.0 TSF (0 to 1 kg/cm²) or pressure from 0 to 260 kPa (0 to 2.5 kg/cm²), making it suitable for a wide range of soil conditions. For rapid unconfined compressive strength estimation, consider pairing with a Soil Pocket Penetrometer.

Applications

The Torvane Pocket Shear Vane is widely used in:

• Geotechnical Engineering – Evaluating stability of foundations, trenches, and excavations
• Construction – On-site soil testing for cohesion and consistency
• Safety and Compliance – Used by OSHA inspectors and field technicians
• Laboratory Research – Quick characterization of cohesive soils without extensive sample prep

Its portability and ease-of-use make it ideal for professionals who need reliable on-site soil strength measurements.

Accessories and Specifications

• 500 mm Extension Rod – Enables testing at various depths
• Heavy-Duty Nylon Bag – Belt-clip attachment for field convenience
• Laminated Instructions Card – Always accessible for reference
• Durable Stainless Steel Construction – Compact and long-lasting, shipping weight 4 kg
• ASTM D2573 Compliance – Ensures standardized and accurate results

The Torvane Pocket Shear Vane Tester is an essential tool for anyone needing fast, reliable soil strength assessment in both field and laboratory environments.