250,000 lbf Auto Concrete Compression and Flexural Machine

Gilson AC-250, 250K Automatic Concrete Compression & Flexural Machine

AC-250 Series Fully Automatic Concrete Compression Machines

The AC-250 Series delivers precise and reliable strength testing for concrete cylinders, beams, cubes, cores, and more with minimal operator effort. A single button on the touchscreen controller starts a fully automated test cycle, handling specimen contact, pre-loading, load rate, break detection, data collection, and piston reset in compliance with ASTM, AASHTO, and other standards. This ensures consistent, accurate results for every test.

Operators can easily select test methods, input sample data, and adjust parameters via the intuitive touchscreen interface. Real-time force, stress, and load rate are displayed during testing, with optional live graphs for load vs. time or stress vs. strain. The machine’s feedback system precisely controls load application, while USB, LAN, and Wi-Fi connectivity allow seamless data transfer or immediate test printing. Error-free reporting is supported by stored lab, sample, and client data.

Safety is a priority, with features like an emergency-stop button, hydraulic safety relief valve, piston over-travel limit switch, and fragment guard door. The diagnostics system provides instant status updates on key components, ensuring fault conditions are addressed before testing resumes.

The integrated electric motor and hydraulic pump run efficiently at variable speeds, minimizing noise and preventing pressure variations caused by overheating. The top-mounted piston avoids wear from debris, extending the machine’s longevity. Built with a rugged welded steel frame exceeding ACI 363 standards, the AC-250 offers a 250,000lbf (1,112kN) capacity for demanding applications.

The machine is equipped for testing 6x12in (152x305mm) concrete cylinders up to 7,000psi (48.3mPa) using user-supplied unbonded neoprene caps. Additional accessories can expand its capabilities for flexural and other strength testing.

Key Features:

• Windows-based touchscreen controller for easy setup and compliance with ASTM/AASHTO standards.
• Automated testing reduces operator input and enhances productivity.
• USB, LAN, and Wi-Fi connectivity for smooth data management and reporting.
• Advanced drive system ensures cooler, quieter, and consistent operation.
• Rugged, rigid frame surpasses ACI 363 requirements.
• Safety features include an emergency-stop button, hydraulic relief valve, fragment guard door, and piston over-travel limit switch.

Included Items:

• 250,000lbf Automatic Concrete Compression Machine (available in 110V, 60Hz or 230V, 50Hz models).
• 6x12in Cylinder Test Set for Unbonded Caps.
• Mounting stand.

Specifications:

• Load Capacity: 250,000lbf (1,112kN).
• Strength Range (psi/mPa): 7,000psi (48.3mPa).
• Platen Opening Dimensions: 9.25 x 19.625in (235 x 499mm), WxH.
• Product Dimensions, Including Stand: 30 x 17 x 58in (762 x 432 x 1,473mm), WxDxH.
• Test Standards Met: AASHTO T 22, ASTM C 39, ASTM E 4, BS 1610, BS 1881.

The AC-250 Series combines cutting-edge automation with robust design, making it the perfect solution for efficient, safe, and accurate concrete strength testing.