The Special Machines Range incorporates the technical expertise of the 3R brand.
We design and manufacture Tensile / Compression / Flexural Testing Machines with very high stiffness and exceptional dimensions to meet your needs.
These testing machines address requirements for efficiency, precision and robustness. They are equipped with all types of supports and enable compression, tensile and flexural tests on materials and complex structures.
They incorporate Rigi-Drive technology, enabling extremely precise control without risk of vibration phenomena at high and medium speeds, and ensuring displacement regularity at low speeds and therefore controlled load increases on materials with high and medium moduli.
The oversized frame, combined with a fully rigid transmission with reduced play, significantly limits the energy stored and released during brittle fractures of high-modulus materials. This also enables measurement of deformations on flexible materials or structures where the use of an extensometer is difficult.
Key benefits
- PC control with QuantX software
- Features all the advantages of the Syntech model
- Test speed: 0.001 to 500 mm/min up to full load (other on request)
- Force, displacement, stress, strain control, etc.
- Axial stiffness equal to 2 or 3 times the machine capacity (in kN/mm)
- Stroke 1500, 2000 mm and more
- 2 or 4 guide columns with diameter greater than 100 mm
- Fully rigid transmission. No chain, no belt
Here are some examples
Rope and Textile:
| Frame: | 400kN testing machine with chamber width and depth of 1500mm x 1500mm, stroke 3500mm |
| Location: | Malaysia |
| Test types: | Full-scale tests on harnesses and climbing equipment, with dummies |
| Special features: | High energy stored during tests generating product failures that can exceed the speed of sound (ropes). Specific protection with energy absorbers implemented |
Foundry:
| Frame: | Testing machine with chamber width and depth of 1500 x1500mm, stroke 700mm, with grooved table and motorized transverse movement of the load sensor |
| Location: | Pont-à-Mousson |
| Test types: | Tests on manhole covers according to the new EN 124 |
| Special features: | No manual handling by the operator thanks to motorized axes enabling forces to be applied at any point on the structure. Non-contact 4-point measurement by lasers (integrated into the software) |
Mechanical Engineering:
| Frame: | 600kN tensile testing machine |
| Location: | Saint Etienne |
| Test types: | Multi-material and structural tests |
| Special features: | Machine with specific size enabling integration in a restricted space. The design office designed a frame with specific dimensions, with grooved table and special attachments for rapid tooling changes 600kN |
Composite:
| Frame: | Oversized 500kN machine with spherical platen 1400mm x 1400mm and stroke 1500mm |
| Location: | Nantes |
| Test types: | Tests on fluid accumulators for civil engineering |
| Special features: | Oversized machine with high stiffness for exceptional precision in strain measurement without using an extensometer |
