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Cm-2500 Series Compression Testing Machine

CM-2500 Series
Compression Testing Machines

250,000 lbs
1,112 kN Capacity

ASTM C-39, E-4
AASHTO T-22

  • Testing range of 2,500 to 250,000 lbs. (11 1,112 kN) with an accuracy of ±.5% of indicated load.
  • Supplied with platen set for testing 6" x 12" (150 x 300 mm) cylinders using unbonded or sulfur capping method and steel safety guard doors.
  • Continuous duty hydraulic pump runs quieter, cooler and features greater rate of load control.

The CM-2500 has all the features you look for in a basic compression testing machine; accuracy, portability, versatility, dependability and compactness, making it the ideal choice for either field or laboratory testing operations. It is well suited for testing 6" x 12" (150 x 300 mm) concrete cylinders up to 7,000 psi (48.2 MPa), or with optional platens, low strength concrete beams.

Its load frame is manufactured with structural steel side members and solid steel crossheads, and features our unique wrap around box construction design, with each corner fully welded on both the inside and outside crosshead seams, providing the rugged stability needed for accurate and repeatable test results year after year. The frames design positions the hydraulic cylinder assembly on the top crosshead with load force applied in a downward direction, eliminating the build up of foreign material around the cylinder area for longer seal life. A quick change platen system allows for fast and easy switching of test platens.

The machine's digital indicator, loading control valve and hydraulic pump are positioned on the right side of the load frame for easy access, increased productivity and safer operation by positioning the operator on the right side of the machine when testing. Featuring superior rate of load control, its quiet running, continuous duty hydraulic pump and pressure compensated loading control valve are manufactured to ISO 9001 international quality standards.

Available with three different digital load indicating systems, select from a basic budget minded unit or an advanced unit that will automatically calculate and display stress test results and will transfer to a PC all of the test data required for a C-39 test report.

Standard safety features are steel fragment guard doors on both frame openings and a high pressure hydraulic safety valve which prevents the machine from operating beyond its maximum capacity. Optional safety features are a piston over-extension limit switch (all models). An electronic overload protection switch automatically turns the hydraulic pump off when the machine reaches its maximum capacity or at sample failure. This option is available with iD and LXI models only.

Optional accessories include test platen sets, spacers, machine mounting stand, test cylinder loading shelf and ¾ hp (.6kw) hydraulic pump package.

Meets ASTM C-39, E-4 and AASHTO T-22 specifications.
Warranty 2 years on parts and labor.

Compression Testing Machine CM-2500 Specifications

Max. Compression Capacity 250,000 lbs 1,112 kN
Vertical Opening * 19.375 in 492 mm
Horizontal Opening 9.25 in 235 mm
Piston Stroke 2.5 in 63.5 mm
Machine Dimensions on Optional Stand Width 27 in 686 mm
Depth 17 in 432 mm
Height 56.312 in 1430 mm
Lower Platen, Diameter 33.2 sq.in 214 sq.cm
Spherically seated upper platen, Dia. ** 6.5 in 165 mm
Pump *** .5 hp .4 kw
Oil Reservoir Capacity  2 Gallon 7.6 liter
Electrical Requirements 115/230/1/60/50
Shipping Weight 780 lbs 353 kg
Console Dimensions **** Width 18 in 457 mm
Depth 18 in 457 mm
Height 44.25 in 1,124 mm
* Frame opening dimensions are without test platens installed in machine
** Upper Test Platen MA-0101 is supplied standard on all Models
*** .750 hp (.6 kw) pump option available
**** Consoles are standard with all C-Model Machines