300,000lbf Concrete Compression Machines

MC-300 Series Concrete Compression Machines have 300,000lbf (1,335kN) capacities and meet or exceed stringent ACI 363 recommendations. They can be outfitted with accessory fixtures to accommodate compressive strength testing of many different-sized cubes, cores, masonry prisms, and cylinders, as well as flexural beam specimens. These machines are supplied ready-to-test 6x12 concrete cylinders up to 8,500 psi with sulfur caps or unbonded pads but can be fitted with optional attachment sets for testing cubes, flexural beams, and other cylinder sizes.

300 Series units feature a unique 0.5 hp system for cool, quietly controlled operation. The compressive force is generated by the oil-immersed two-stage hydraulic pump powering the bottom-mounted ram. In the first high-volume and low-pressure stage, the piston advances rapidly. The pump switches to the second stage automatically at 135psi of pressure. This low-volume high-pressure stage maintains a continuous rate of load from 2,000–200,000lbf (8,896–889,600kN) per minute during testing.

The 6.5in (165mm) diameter upper spherically-seated platen assembly is hardened and nickel-plated with a locking stem that permits quick substitution of accessory components. The rectangular lower compression table features a precision-ground piston with O-ring sealing and a Teflon® backup ring resting in a polished steel cylinder.

Latchable Steel Fragment Guard Doors and a high-pressure hydraulic safety valve promote protection while preventing use beyond maximum machine capacity. The piston has a pressure bleed hole to prevent overextension of the ram. Units feature side-mounted Controllers that can also be installed in a separate console. Contact us for customizations.

Read more on Pro and Pro-Plus Controllers.

Features:

• 300,000lbf (1,335kN) capacity
• Accuracy exceeds ASTM C39/39M and E4 requirements
• Frame meets or exceeds ACI 363 recommendations for stiffness
• Latchable Steel Fragment Guard Doors promote safety
• A piston with pressure bleed hole prevents use beyond maximum capacity
• 0.5 hp system runs cooler and offers better load control

Included Items:

• 300,000lbf Compression Machine (115V, 60Hz or 230V, 50Hz)
• Pro or Pro-Plus Controller

Accessories:

• MCA-19 4in Spacer used in testing compressive strength of cylinders
• MCA-27 Concrete Compression Machine Mounting Stand provides a convenient height for loading and unloading specimens
• MCA-5 2in Cube Test Set for use in compression testing of 2x2x2in (51x51x51mm) cube specimens
• MCA-3 6in Cube Test Set used in compression testing of 6x6x6in (152x152x152mm) cube specimens
• MCA-34 Universal Flexural Set for center or third-point loading of 6x6in flexural beams
• MCA-18 3x6in Cylinder Test Set for compression testing of 3x6in-cylinder specimens
• MCA-30 Cylinder Splitting Set for splitting tensile strength of concrete cylinders
• MCA-32 Masonry Test Set for testing 8in concrete masonry units (CMU blocks)
• MCA-28 Printer Accessory for use in 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-62 Piston Over-Extension Limit Switch provides additional safety during operation
• Perpendicularity Verification Devices (PVDs) are used to verify the proper perpendicular alignment of concrete cylinders during compressive strength testing.

Related blogs:

• Choosing a Standard Concrete Compression Testing Machine
• Concrete Cylinder Testing - From the Field to the Lab