Multi Stranded Wire Tensile Testing Machine 600kn φ 6-φ 21mm ASTM A370 Standard

Wire Tensile Testing Machine Strand Steel Wire 1000kN φ6-φ21mm ASTM A416 HUT106DJ
 
 
HUT series type DJ servo-hydraulic universal testing machine is specially designed with extra-long jaw face, specifically used for stranded wire tensile test. It is designed with up-mounted actuator structure. Bidirectional differential cylinder provides bidirectional control of tension and compression in one single space.
Clearance-free structure and actuator up and down to adjust the test space offers easy operation and high efficiency. This machine is mainly used for tensile test of metallic materials. It provides closed loop control of constant force, constant displacement and constant extension, smoothly switching among them.
Test results can be automatically calculated and be able to printed and exported.
 
Load Frame Configuration: 4 columns, servo-controlled hydraulic
Capacity: 600kN 
Test Space: Single zone
Typical specimens:  Stranded wire, fasteners, rebar, chain, welds, castings
Standards: ASTM A370, ASTM A416, ISO6934.4, ISO6892, ASTM E8
 

Load Frame Configuration: 4 columns, servo-controlled hydraulic

Capacity: 600kN 

Test Space: Single zone

Typical specimens:  Stranded wire, fasteners, rebar, chain, welds, castings

Standards: ASTM A370, ASTM A416, ISO6934.4, ISO6892, ASTM E8

ASTM A370 - Standard Test Methods and Definitions for Mechanical Testing of Steel Products

These test methods2 cover procedures and definitions for the mechanical testing of steels, stainless steels, and related alloys. The various mechanical tests herein described are used to determine properties required in the product specifications. Variations in testing methods are to be avoided, and standard methods of testing are to be followed to obtain reproducible and comparable results. In those cases in which the testing requirements for certain products are unique or at variance with these general procedures, the product specification testing requirements shall control.

A7. METHOD OF TESTING MULTI-WIRE STRAND FOR PRESTRESSED CONCRETE

A7.1.1 This method provides procedures for the tension testing of multi-wire strand for prestressed concrete. This method is intended for use in evaluating the strand properties
prescribed in specifications for" prestressing steel strands."
A7.2 General Precautions
A7.2.1 Premature failure of the test specimens may result if there is any appreciable notching, cutting, or bending of the specimen by the gripping devices of the testing machine.
A7.2.2 Errors in testing may result if the seven wires constituting the strand are not loaded uniformly.
A7.2.3 The mechanical properties of the strand may be materially affected by excessive heating during specimen preparation.
A7.2.4 These difficulties may be minimized by following the suggested methods of gripping described in A7.4.

Load frame

Specially designed longer jaw face for tensile test of stranded steel wire.

2. Single zone design ensures all types of tests finish in one space. Compact and reasonable design is ergonomic and effectively reduces labor intensify.

3. Upper actuator features excellent axis alignment, good shock absorption and easy to adjust test space.

4. Advanced wedge type hydraulic tensile grips provide high gripping performance for high strength and high hardness materials.

Long travel double-acting cylinder can accommodate different specimen size. One-body forging piston and rod, and imported sealing components, ensure perfect sealing, high accuracy and repeatability.Robust and high-accuracy guidance protects cylinder from lateral force, improving the working life of sealing components."I" shape force transducer features excellent linerity and stability with ultra measurement accuracy.Nemicon encoder provides with high accuracy of displacement measurement and control.DDV D633 MOOG servo valve offers fast response and high-accuracy control, and easy to maintain.Equipped ABB motor features high efficiency, energy-saving, high start-toque, good performance, low noise, low shaking, high reliability and easy to maintain.

Main cylinder