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General Information
Introduction
The Model 4207D Digital Compressive Strength Tester is a hydraulic press system that may
be used to apply known compressive loads to a sample at known rates. The maximum load is
50,000 Lbf. The Model 4207D Tester meets all the requirements for cement compressive
testing as specified in API Specification 10.
Purpose and Use
The Model 4207D Compressive Strength Tester is designed to test the compressive strength
of sample cement cubes in compliance with API Specification 10. The Model 4207D
enables the operator to achieve steady, uniform loading of the sample in order to obtain an
accurate measure of the compressive strength.
Description
The sample load schedule is programmable as a series of ramps and dwells using a controller.
The system is equipped with a digital display that retains the maximum load that causes the
failure of the sample under test.
Features and Benefits
• Programmable loading rates from 500 to 10,000 psi/min (2000 to 40,000 Lbf/min)
• Maximum load of 50,000 Lbf
• Polycarbonate safety shield with door safety interlock
• Multiple load rates/durations can be programmed as a single control operation
• Precise rate control electronic system and hydraulic pressure release valves providing
outstanding control of the loading rate
• Interface to Model 5270 Data Acquisition and Control Software (used to acquire and
plot the results)
Specifications
Power Requirements:
Maximum Load:
Maximum Loading Rate:
Maximum Load Dwell:
Maximum Oil Temperature:
Environmental:
200-240 VAC, 50 Hz or 60 Hz
50,000 pounds-force (Lbf), 222 kN
40,000 Lbf/Minute (178 kN/min)
3 min @ 50,000 Lbf (222 kN) with initial oil temperature
o
o
below 75
F (24
C)
o
o
175
F (60
C)
o
o
40-120
F (4-49
C)
95% Relative Humidity (non-condensing)
PREFACE
P-1
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