Welding anchor chain tensile strength testing machine

WLW-1000Welding anchor chain tensile strength testing machineIt is a horizontal hydraulic testing equipment developed for large-sized ship anchor chains and ocean mooring anchor chains. Its core is used for testing key performance such as tensile strength, yield strength, fracture strength, and endurance load of anchor chains. The equipment strictly follows ASTM E4, ISO 75001, and GB related standards, and is widely used to serve large anchor chain production enterprises, shipbuilding groups, and third-party testing institutions, providing accurate data support for anchor chain safety of ocean going ships and platforms.

1 WLW-1000Welding anchor chain tensile strength testing machineCore technical parameters

Rated test force of 1000kN (100 tons), effective measurement range of 10kN to 1000kN (no gear switching throughout the entire process); The accuracy of the test force indication is ≤± 1%, and the displacement measurement adopts a high-precision photoelectric encoder with a resolution of 0.01mm. The piston stroke is 1500mm, and the test space is 500-6000mm, which can be adjusted in 500mm gear to adapt to different lengths of anchor chains; The upper limit of system pressure is 30MPa, and the test speed supports displacement rate control of 0.5-100mm/min; The height of the work center is 350mm, and the external dimensions of the host are about 9000 × 1200 × 500mm, suitable for 380V ± 10% three-phase power supply.

2、 Product Details

The equipment adopts a horizontal frame structure welded with integral steel plates, and a stable force system is composed of front and rear clamp seats, main oil cylinder, and front crossbeam. Compared with vertical models, it is more suitable for long anchor chains and reduces the footprint. The power system is equipped with a 10L/min, 30MPa constant pressure pump set, equipped with an imported low-noise high-pressure gear pump and vibration reduction device, to achieve stable output of test force; The core force measuring component adopts imported high-precision tension compression sensors, combined with a fully digital PID control system, to ensure accurate data acquisition under high loads. The control system is based on industrial microcomputers, with dedicated software supporting real-time display of test curves, automatic data storage, and multi format report printing. The operation interface supports batch input of sample information.

The clamping system adopts a cylindrical pin insertion combined with a dovetail groove jaw design, with a jaw hardness of 58-62HRC. The biting force distribution is optimized for the anchor chain link structure to avoid slipping or local damage during testing. In terms of safety configuration, in addition to 110% rated force overload shutdown protection, an abnormal oil pressure alarm, emergency stop button, and protective cover are added to comprehensively ensure operational safety. The rear clamp seat supports manual pushing to adjust the test space, adapting to the fast clamping requirements of different specifications of anchor chains.

3、 Highlight advantages

Firstly, it has strong overload stability. The overall welded frame is subjected to aging treatment to eliminate stress, and combined with double acting piston cylinder loading, the deformation of the frame under 1000kN full load is less than 0.2mm, solving the problem of traditional equipment overload instability. Secondly, the measurement accuracy is high. The sampling frequency of the sensor and data acquisition system reaches 1000Hz, and it maintains an accuracy of ± 1% under high loads, supporting the comparison of experimental curve superposition. Thirdly, the scene adaptation is flexible. Adjustable test space and customized attachments, suitable for various types of welded anchor chains from φ 22 to φ 80mm, supporting multi-mode control such as constant force and constant displacement. Fourthly, the operation and maintenance costs are low. The key components are made of high-strength alloys, and the hydraulic system is equipped with a 5 μ m oil filter and impurity alarm. The continuous working stability is over 1000 hours, and the average annual failure rate is less than 3%.

This equipment, with its core advantages of heavy-duty precision, stability, and durability, has become the core equipment for quality control of large-scale welded anchor chains, helping enterprises meet the strict safety standards of ocean shipping and marine engineering, and enhancing the international competitiveness of their products.