HDZJ-50A1 Coarse grained Soil Direct Shear Compression Testing Machine

HDZJ-50A1 Coarse grained Soil Direct Shear Compression Testing Machine

Product Information

The coarse-grained soil direct shear compression testing machine is developed in accordance with the provisions of SL237-059-1999 "Soil Test Regulations" issued by the Ministry of Water Resources of the People's Republic of China for direct shear testing of coarse-grained soil. A specialized equipment used to determine the shear strength and deformation time relationship of coarse-grained soil with a maximum particle size of 80mm. This device can perform both direct shear and compression tests simultaneously without interfering with the data.

The coarse-grained soil direct shear compression testing machine adopts a frame type, with two layers of circular shear boxes on top and bottom, and adjustable opening height. Axial load and horizontal thrust are measured using spoke type load sensors, while vertical settlement and horizontal shear displacement are measured using resistance gauges. All hydraulic operations and control valves are centrally placed on the operation control screen. The collection system is matched with our company's automatic data collection system to complete automatic data collection.

This instrument mainly consists of three parts: measurement and control system, loading system, and accessories (including two-layer circular shear box, movable pad, driving guide rail, etc.).

Product Features:

1. The core control system of the instrument measurement and control system adopts a high-speed 32-bit ARM microcontroller with a built-in real-time operating system. The ultra high speed sampling and computing capabilities ensure the accurate acquisition and display of various data during the testing process.

2. The measurement and control system adopts an integrated industrial computer, with complete testing and control software functions that meet the data display and automatic testing requirements of the specifications. It also has complete recording and report display functions.

3. The axial loading system is driven by an AC servo oil source, with a more stable shear rate and controlled by a constant pressure proportional valve with a large loop feedback system. There is no noise in the stable voltage state.

4. Optional CNC metering oil source (cutting speed can be reduced to 0.001-5mm/min).

5. Equipped with a trial mold moving guide rail and positioning device, and optional trial mold lifting device (a horizontally movable micro crane).

6. Optional trial mold kits of other sizes can be installed.

7. One machine can complete consolidation, consolidation direct shear and other tests.

8. Independent servo measurement and control cabinet with integrated industrial computer.

9. The self-developed coarse-grained soil mechanics series PC version testing software can complete functions such as testing, drawing, numerical analysis, and reporting.

Main technical parameters:

Direct shear loading rack: frame type

Sample size: Φ 504.6 * 400mm (area 2000cm2)

Maximum vertical load: 700kN

Maximum horizontal thrust: 700kN

Load accuracy: 0.5%

Maximum vertical travel: 125mm

Maximum horizontal travel: 125mm

Vertical displacement sensor: 0-50mm

Horizontal displacement sensor: 0-100mm

Displacement accuracy: 0.05mm

Vertical and horizontal voltage stabilization error: ± 0.5% F.S

Vertical and horizontal cylinder piston area: 490.6cm2 (diameter 250mm)

Host size (length * width * height): 1735 * 800 * 1579mm

Main control cabinet size: (length * width * height) 1094 * 650 * 875mm

Host weight: 1.9T

Overall power: 3.5KW

Standard servo pump oil source: horizontal shear speed 1-10mm/min

(Optional) CNC metering oil source: horizontal shear speed 0.001-5mm/min

Saturation method: head saturation method/vacuum saturation method

Electrical parameters: AC220V/50Hz