Product Overview

The KR‑211 heavy‑duty servo‑hydraulic horizontal universal tester is purpose‑built for high‑load tensile performance verification of long‑size bulky specimens. The horizontal layout solves the height‑restriction problems of conventional vertical test frames, making it ideal for steel chains, wire ropes, power transmission cables and high‑voltage electrical porcelain insulators.

This complete system consists of heavy‑duty test host, hydraulic power pack, electrical control cabinet and dedicated computer analysis software. It adopts imported high‑response servo‑valve and high‑precision force transducer, supporting closed‑loop regulation of load, stress, strain and displacement. It is widely adopted by metallurgical enterprises, power‑equipment manufacturers, chain‑rope factories, third‑party heavy‑component inspection institutes for destructive breaking‑load tests and proof‑load certification testing.

Core Product Competitive Advantages

1. High‑Rigidity Welded Horizontal Main Frame Heavy‑duty integral welded steel bed frame features rational operating height for convenient specimen mounting. The horizontally‑arranged loading cylinder delivers excellent axial centering performance and effective shock‑absorbing capacity during sudden sample fracture, minimizing frame vibration impact. The whole bed maintains long‑term geometric stability under maximum rated test force.
2. Energy‑Optimized Servo‑Hydraulic Drive Unit Equipped internationally‑sourced fast‑response servo‑valve with differential‑pressure adjustment logic. It lowers power consumption and reduces system heat generation, extending hydraulic‑oil service cycles. The high‑accuracy bidirectional tension‑compression load‑cell supports calibration under compression and can be reused for tensile measurement, securing reliable force‑reading stability for long‑duration static load tests.
3. Multi‑Channel High‑Resolution Controller The control unit delivers force resolution up to 1/350000 full‑scale. Built‑in adaptive neuron‑PID closed‑loop algorithm enables seamless switching between load, strain and displacement control modes. It supports 8‑channel analog signal acquisition plus 3‑channel digital signal input, communicating via high‑speed USB link. Different control strategies can be applied for elastic, plastic and hardening phases of metal tensile tests automatically.
4. Highly Customizable Windows Test Software Users can write and store self‑defined test procedures according product‑specification requirements. Multiple real‑time curves (force‑displacement, force‑time, elongation‑time) can be displayed simultaneously. Test‑report templates are fully editable; test data can be exported to Excel for secondary processing.

The system includes multi‑level operator authorization management to prevent improper parameter modification. Reserved multi‑channel external‑data‑acquisition interfaces can connect micrometers and other auxiliary measuring instruments. Users can filter historical records by batch‑number, date or procedure name; characteristic yield points and fracture points can be manually marked on curves for flexible post‑test analysis. Custom‑defined physical units are supported by formula configuration. Integrated software‑level overload, over‑travel and over‑capacity protection improves operational safety.

5. Complete Safety‑Protection Architecture Multi‑layer interlock includes hydraulic‑system pressure‑limiting, software‑configured overload threshold and mechanical end‑stop limits. The large‑format LCD shows real‑time force, displacement and system‑status data throughout the whole test process. Manual valve groups allow fine control for piston advance, retract and holding actions during specimen setup.
6. Modular‑Designed Hydraulic‑Grip Compatibility Standard hydraulic tensile grips fit stranded wire up to 26 mm diameter. Custom‑sized jaw assemblies and extended‑length test‑beds are available for extra‑long specimens to satisfy diverse industrial‑component test requirements.

Complete Technical Parameter Table

Standard Operating Workflow

1. Pre‑Test Inspection & Parameter Configuration Inspect hydraulic‑oil level, pipeline connections and safety‑interlock status. Launch the test software, select or edit the test procedure, set target load rate, stop‑conditions and report‑template.
2. Specimen Installation & Alignment Open protective covers, mount chain / wire‑rope / insulator sample inside hydraulic grips, carefully align the specimen axis with loading‑cylinder centre‑line to eliminate eccentric‑loading influence.
3. Pre‑Loading Adjustment Operate manual‑valve group to move piston for small pre‑tensioning; perform force‑value and displacement zero‑calibration before formal test.
4. Automatic Closed‑Loop Tensile Test Initiate automated test sequence. Servo‑hydraulic system follows preset procedure to apply load. Software continuously records force, displacement and elongation data and renders real‑time curves.
5. Test Termination & Data Analysis Test automatically halts upon specimen fracture or reaching preset stop‑condition. Users mark characteristic points, review overlay curves, edit test‑report contents and export datasets.
6. Post‑Test Shutdown Retract piston to home position, remove broken specimen, tidy up grips and test‑bed. Exit software, shut down hydraulic power‑unit and cut main power supply.

Wide Industrial Application Scenarios

Wire‑Rope & Chain Manufacturing Plants

Breaking‑strength test for steel wire‑ropes, lifting chains and sling assemblies; factory‑delivery proof‑load acceptance inspection.

Power‑Grid & High‑Voltage‑Equipment Factories

Tensile‑strength assessment for electrical‑porcelain insulators, overhead transmission cables and power‑fitting components.

Heavy‑Industry & Metallurgical Laboratories

Large metal structural‑parts, anchor shackles and connecting‑components destructive tensile performance evaluation.

Transportation & Lifting‑Gear Enterprises

Safety‑certification testing for hoisting hardware, marine anchor chains and heavy‑duty lifting accessories.

Third‑Party Accredited‑Testing‑Institutes

Carry‑out compliance tests complying with ISO and relevant industrial‑standards, issue official inspection‑reports for product approval.

Standard Factory‑Full‑Delivery Kit

1. KR‑211 horizontal servo‑hydraulic test main‑frame assembly
2. Single‑rod double‑acting servo‑hydraulic loading cylinder
3. Movable cross‑beam assembly
4. Complete hydraulic power‑station unit
5. High‑precision 500 kN tension‑compression load‑cell
6. Displacement‑measuring sensor module, A/D acquisition & display system
7. Hydraulic tensile‑grip set (for stranded‑wire max 26 mm diameter)
8. Industrial‑grade desktop computer + printer hardware set
9. Multilingual operation manual + software CD‑ROM
10. Factory force‑and‑displacement metrology calibration certificate

Global Distributor & After‑Sales‑Support

We provide remote technical guidance for parameter configuration, procedure‑editing and routine‑maintenance. Long‑term spare‑parts supply includes servo‑valves, load‑cells, sealing kits and hydraulic‑grip jaws. Custom‑length test‑beds, upgraded‑force‑grades and special‑purpose fixture sets can be engineered for bulk‑purchase orders. Regional exclusive‑agent benefits contain priority production scheduling, OEM private‑label customisation and full‑set HD product‑marketing image resources.

Product‑Banner‑Marketing‑Slogan

KR‑211 Servo‑Hydraulic Horizontal Universal Tester | For Wire‑Rope‑Chain‑Insulator High‑Load Tensile Breaking‑Load Test

Core‑Feature‑Labels‑For‑Product‑Images

High‑Stiffness Horizontal Frame | Imported Servo‑Valve System | 1/350000 High‑Force‑Resolution | Multi‑Channel Signal Acquisition | Customizable Test‑Procedure & Report Template | Multi‑Layer Safety Interlock

Safety‑Operation‑Reminder

Stay outside the specimen fracture‑hazard zone while performing high‑load destructive tensile tests. Inspect hydraulic pipelines and sealing components on a regular basis.