Concrete Compression Machines

Concrete Compression Machines from Gilson meet ASTM/AASHTO strength testing requirements for conventional concrete test cylinders. A complete selection of compression machine accessories allows easy configuration of all models to test concrete cylinders cores, cubes, and flexural concrete beam specimens.

Automatic Concrete Compression Machines

Basic Concrete Compression Machines

Automatic Controller Retrofits

Gilson Guardian Cloud Sharing Application

**Compression Machine Comparison Table**
Test Type	Test Standards		Model Number	Total Capacity lbf (kN)	Maximum psi (kPa) w/6x12 Cylinder
Test Type	ASTM	AASHTO	Model Number	Total Capacity lbf (kN)	Maximum psi (kPa) w/6x12 Cylinder
Automatic Series
Compression, Flexural, & Splitting	C39, C78, C109, C293, C496, C1019	T 22, T 97, T 106, T 177, T 198	AC-250	250,000 (1,112)	7,000 (48,265)
			AC-325	325,000 (1,446)	9,200 (63,434)
			AC-450	450,000 (2,002)	12,700 (87,567)
			AC-650	650,000 (2,891)	18,400 (128,868)
Compression, Flexural, Splitting, & Modulus of Elasticity	C39, C78, C109, C293 C469, C496, C1019		AC-250M	250,000 (1,112)	7,000 (48,265)
			AC-325M	325,000 (1,446)	9,200 (63,434)
			AC-450M	450,000 (2,002)	12,700 (87,567)
			AC-650M	650,000 (2,891)	18,400 (128,868)
Compression, Flexural, Splitting, Modulus of Elasticity, & Poisson's Ratio			AC-250MR	250,000 (1,112)	7,000 (48,265)
			AC-325MR	325,000 (1,446)	9,200 (63,434)
			AC-450MR	450,000 (2,002)	12,700 (87,567)
			AC-650MR	650,000 (2,891)	18,400 (128,868)
Rigid Frame (RF) Series
Compression, Flexural, & Splitting	C39, C78, C109, C293, C496, C1019	T 22, T 97, T 106, T 177, T 198	AC-300	300,000 (1,334)	8,500 (58,608)
			AC-400	400,000 (1,779)	11,300 (77,914)
			AC-500	500,000 (2,224)	14,100 (97,220)
Compression, Flexural, Splitting, & Modulus of Elasticity	C39, C78, C109, C293, C469, C496, C1019		AC-300M	300,000 (1,334)	8,500 (58,608)
			AC-400M	400,000 (1,779)	11,300 (77,914)
			AC-500M	500,000 (2,224)	14,100 (97,220)
Compression, Flexural, Splitting, Modulus of Elasticity, & Poisson's Ratio			AC-300MR	300,000 (1,334)	8,500 (58,608)
			AC-400MR	400,000 (1,779)	11,300 (77,914)
			AC-500MR	500,000 (2,224)	14,100 (97,220)
Masonry Block Compression	C140, C1314	—	AC-401	450,000 (2,002)	—
Masonry Block Compression	C140, C1314	—	AC-502	500,000 (2,224)	—
Basic Series
Compression, Flexural, & Splitting	C39, C78, C109, C293, C496, C1019	T 22, T 97, T 106, T 177, T 198	BC-250	250,000 (1,112)	7,000 (48,265)
			BC-325	325,000 (1,446)	8,500 (58,608)
			BC-450	450,000 (2,016)	11,300 (77,914)

Gilson offers Automatic, Rigid Frame, Block, and Basic concrete compression machines to perform complete strength tests for many concrete sample types, including concrete cylinders, cores, cubes, and flexural beam specimens.

Automatic Concrete Compression Machines feature solid steel construction and perform complete test cycles on concrete strength specimens with minimal operator input, reducing human error. Automatic Controllers perform the selected test methods to the exact requirements of the selected ASTM or AASHTO standard. Gilson Automatic Compression Machines regulate hydraulic loading force by controlling the speed of the electric motor, which provides the exact amount of required force, saves energy, and extends service life.

Advanced machine models are outfitted with special hydraulic and electronic networks for load control and measurement of sample deformation to determine the Modulus of Elasticity and Poisson’s ratio with the use of specified accessories. Units are available with a load frame capacity ranging from 250,000lbf to 650,000lbf. A 60,000lbf low-capacity model is also available.

Rigid Frame Automatic Compression Machines are automatically operated models and feature the same hydraulic loading system as Automatic units but are designed with highly rigid frames to withstand heavy testing and high-strength concrete mixes. Units are available with a load capacity of 300,000lbf, 400,000lbf, or 500,000lbf.

Masonry Block Automatic Compression Machines are also automatically operated models that have an extended opening for testing masonry blocks. Units are available with a load capacity of 450,000lbf for a single masonry block or 500,000lbf for a two block in prism sample.

Basic Concrete Compression Machines are manually operated, cost-effective, and perform complete compressive strength tests on many concrete sample types. Units can be fitted with specified accessories to perform strength tests on cores, cubes, tensile splitting specimens, or flexural beams. With the advanced HMI controller, users can enter testing parameters, print data following test completion, and view test data in real time, including live graphs of load vs time or stress vs strain. These versatile units are available with a load capacity of 250,000lbf, 325,000lbf, or 450,000lbf.

Automatic Controller Retrofits easily upgrades a Basic Compression Machine to a fully automatic system. Retrofits are compatible with any Gilson Basic or Manual Compression Machine.

Gilson Guardian Cloud Sharing Application makes it possible to track field samples from casting through completion. This software can be added to any Gilson Automatic or Basic Compression Machine and enhances the data collection and transfer process of concrete compression testing. The geographic placement of specimens in the field can be marked with GPS coordinates, and a unique QR code can be attached to specimens to view test data on the HMI screen with a simple scan.

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