250,000lbf Concrete Compression Machines

MC-250 Series Concrete Compression Machines test the compressive strength of cylinders, cores, and cubes, and the flexural strength of beams. These durable frames have total capacities up to 250,000lbf (1,112kN) and the two-stage, oil-immersed pump powers the hydraulic ram mounted in the top crosshead to apply downward compression force. The first high-volume low-pressure stage rapidly advances the piston, then the pump automatically switches at 135psi of pressure to the second stage. This stage of low-volume high-pressure flow maintains a continuous rate of loading during testing from 2,000—200,000lbf (8,896—889,600kN) per minute.

The 250 series models have 0.5 hp systems that run cooler, quieter, and offer better load control than other brands. Precision-ground pistons with O-Ring sealing and Teflon® back-up rings rest in a polished steel cylinder. Ground and hardened spherically seated upper platens have nickel plating, scribed concentric circles. A Locking Stem holds the upper platen assembly securely in place, yet allows quick substitution of accessory components.  The lower platen is 6.5x1.9in (165x48mm) diameter x thickness.

Latchable Steel Fragment Guard Doors, high-pressure hydraulic safety valves, and piston pressure bleed holes offer added safety to prevent use beyond maximum capacity. Controllers are side-mounted but can be installed in a separate console. Contact us for customizations. These machines are supplied ready to test 6x12 concrete cylinders up to 7,000 psi with sulfur caps or unbonded pads but can be fitted with optional attachment sets for testing cubes, flexural beams, and other cylinder sizes.

Read more on Pro and Pro-Plus Controllers.

Features:

• 250,000lbf (1,112kN) Capacity
• Accuracy exceeds ASTM C39/39M and E4 requirements
• Latchable Steel Fragment Guard Doors for optimum safety
• The continuous rate of loading with a two-stage, oil-immersed pump
• Pressure bleed hole in piston prevents use beyond maximum capacity

Included Items:

• 250,000lbf Concrete Compression Machine (115V/60Hz or 230V/50Hz)
• Pro or Pro Plus Controller

Accessories:

• MCA-24 Concrete Compression Machine Mounting Stand offers optimal height for safe handling of specimens
• MCA-14 4in Spacer for testing compressive strength of cylinders
• MCA-6 2in Cube Test Set for compression testing of 2x2x2in (51x51x51mm) cube specimens
• MCA-8 6in Cube Test Set for compression testing of 6x6x6in (152x152x152mm) cube specimens
• MCA-4 Universal Flexural Set allows for center or third-point loading of 6x6in flexural beams
• MCA-10 Cylinder Splitting Set for splitting tensile strength of concrete cylinders
• MCA-16 3x6in Cylinder Test Set for compression testing of 3x6in-cylinder specimens
• MCA-28 Printer Accessory for models with Pro-Plus Controllers
• MCA-29 Able Cable for Pro or Pro Plus Compression Machines, and allows a direct transfer of test data to the user's PC
• MCA-12R Masonry Test Set for testing 8in concrete masonry units (CMU blocks)
• MCA-61 Piston Over-Extension Limit Switch provides additional safety during operation
• Perpendicularity Verification Devices (PVD’s) are used to verify proper perpendicular alignment of concrete cylinders during compressive strength testing.

Related blogs:

• A Guide to Selecting the Right Concrete Compression Testing Machine
• Concrete Cylinder Testing - From the Field to the Lab