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United Test make Universal Testing Machines are known for their long lasting trouble-free performance and highest quality material used in the manufacturing process. This specialized hydraulic tensile testing machine can perform tension test for the steel strand, 7-wire strand for the reinforcement and prestressing of concrete, reinforcing bars, wire rod and wires.
Conform with standard: ISO 15630-1, ISO 6934, ASTM A370, ASTM A416, GB/T 5224.
Specialized features at the jaws clamping:
extra thick jaws seat to make the steel strand sample completely hold in the seat body during tension process, ensure the breaking position at the middle portion.
High hardness (HRC68-70) lenthen jaws enhance the clamping length and area. To make the clamping more firm and reliable, no sliding during test.
Application:
Widely used for industrial application, factory quality control, science and research institute, QC &QA college student training, education institute, testing and inspection center, laboratories, construction company, aerospace, mechanical production, electric appliance fields.
| Model | LW-600 | LW-1000 | ||
| Max. load | 600KN | 1000KN | ||
| Column Number | 4 column and 2 leading screw, total 6 columns | |||
| Measuring force range | 2%～100% | |||
| Accuracy of load | ±1% of indicated value | |||
| Accuracy of deformation | ±0.5%, resolution: 0.01mm | |||
| Constant load, displacement, deformation control Range | 0.4%~100%FS | |||
| Deformation rate control accuracy | Rate<0.05%FS,accuracy ±2.0% Rate≥0.05%FS, accuracy ±0.5% | |||
| Deformation measuring | Clip-on extensometer, standard gauge 50mm, extension 5/10/25mm | |||
| Max. tensile space | 1000mm (can enlarge) | 1000mm (can enlarge) | ||
| Test width (effective horizontal interval) | 520 | 650 | ||
| Steel strand clamping range | φ9.2-φ12.7mm，φ12.7-φ15.24mm | |||
| Flat specimen range | 0～30mm | 0～40mm | ||
| Round specimen range | φ13～φ40mm | φ13～φ60mm | ||
| Compression platen dia. | 200*200mm | 200*200mm | ||
| Bending support roller distance | 450 mm | 450 mm | ||
| Bending roller width | 140mm | 140mm | ||
| Bending roller dia. | 30mm | 40mm | ||
| Piston stroke | 250mm | 250mm | ||
| Max. piston speed | 100mm/min | 100mm/min | ||
| Clamping mode | Hydraulic automatic | |||
| Dim. of frame | 910*550*2370mm | 960*650*2600mm | ||
| Dim. of control box | 1100×700×950mm | |||
| Weight | 3000kg | 4000kg | ||
| Standard Accessories | Load frame, servo oil source, control box, servo valve, oil Pump; oil pressure sensor (Load cell is optional) , liner displacement sensor, tensile test Jaws, compression platen, bending test accessory, PC, printer, Professional software, tools, anchor bolts, operation manual | |||
Load frame,
servo oil source,
control box,
servo valve,
oil Pump;
oil pressure sensor (Load cell is optional) ,
liner displacement sensor,
Steel strand wire tensile test Jaws,
PC, printer,
Professional software,
tools,
anchor bolts,
operation manual
ISO 15630-1, Steel for the reinforcement and prestressing of concrete -- Test methods -- Part 1: Reinforcing bars, wire rod and wire
ISO 6934-4, Steel for the prestressing of concrete -- Part 4: Strand
ASTM A370, Standard Test Methods and Definitions for Mechanical Testing of Steel Products
ASTM A416 / A416M, Standard Specification for Low-Relaxation, Seven-Wire Steel Strand for Prestressed Concrete.