Horizontal Tensile Testing Machine

Features:

• The DI Electronic Horizontal Chain & Rope Testing Machine incorporates design features to enable High accuracy testing with
• economy, speed and versatility
• Loading accuracy as high + 1% as per Grade Aof BS : 1610-1964 and Grade 1.0 IS : 1828-1975.
• Straining at variable speeds to suit a wide range of materials
• Motor driven gear shafts for quick and effortless adjustment of test length to facilitate rapid fixing of test specimen.
• High reading accuracy due to large size of dial.
• Widerange of standard and special accessories, including load stabilizer.
• ¢ Large effective bed clearance enables testing of a wide range of specimen.
•  Simple controls for ease of operation
• Robust straining frame of an extremely rigid construction
• Safe operation ensured by means of safety devices
• Fullyenclosed and protected Pendulum.
• Precision load cell and microprocessor system for measurement
• Window based software for PC operation (optional)

Applications:

• DI Electronic Horizontal Chain and Rope Testing Machine is designed to test chains and ropes under tension.

Principle Of Operation:
Operation of the machine is by hydraulic transmission of load from the test specimen to a separately housed load indicator. The
hydraulic system is ideal since it replaces transmission of load through levers and knife edges, which are prone to wow and damage
due to shock on rupture of test pieces.
Load is applied by a hydrostatically tubricated piston Main cylinder pressure is applied to specimen through a load cell which senses
load. Displacement of the piston is transferred to a rotary encoder through rack & pinion arrangement. Load cell & rotary encoder
signals are processed in microprocessor based measuring panel where load & displacement are indicated digitally. Return
movement of the pendulum is effectively damped to absorb energy in the event of sudden breakage of a specimen

Control Panel:
The controt panel consists of a power pack complete with drive motor and an oil tank, control valve, and electronic measuring panel.

Power Pack:
The unit generates a maximum pressure of 200 kgf / cm2 The hydraulic pump provides continuously non-pulsating oil. Hence the
load application is very smooth.

Hydraulic Controls:

• Hand operated wheels are used to control the flow to and from the hydraulic cylinder. The regulation of the oil is infinitely variable.
• Incorporated in the hydraulic system is a regulating valve which maintains a practically constant rate of crosshead movement.

Measuring Systems:
Measuring system of these machines consists of a precision load cell for measuring load, a rotary encoder with rack and pinion
arrangement to measure displacement and a microprocessor panel to indicate load and displacement digitally. The panel provides
membrane key board to tare load and reset displacement instantly by touch of key. Test resutts like peak load, displacement at peak
load and displacernent at rupture U.T.S., % elongation etc. are available on panel
RS-232C Serial interface is provided to transfer test data to computer. Window based software is available optionally to provide real
time plot and data storage on PC.

Accuracy And Calibration:
Di's Electronic Horizontal Chain and Rope Testing Machines are closely controlled tor sensitivity, accuracy and calibration during
every stage of manufacture. Every Machine is then calibrated over full range in accordance with British Standards 1610-1964 and
IS 1828-1975.