Product Overview

The KR‑210A heavy‑duty electro‑hydraulic servo universal tester adopts a lower‑mounted cylinder dual‑space frame layout. The upper cavity serves for tensile work, and the zone between worktable and cross‑head handles compression, bending and shear evaluations for metallic and non‑metallic specimens.

The complete system conforms to GB/T 228 room‑temperature metallic tensile test specifications. It is widely deployed in metallurgical plants, construction‑material labs, light‑industry manufacturers, aerospace research centers, universities and professional research institutes for material mechanical‑property qualification and R&D sample verification.

Core Product Competitive Advantages

1. Dual‑Space Lower‑Cylinder Main‑Frame Construction The hydraulic actuator is installed beneath the test bed. Tensile operations are completed in the upper chamber; compression, flexure and shear are performed in the lower working area between worktable and movable cross‑head. Motor‑reducer plus chain‑screw transmission drives cross‑head up‑and‑down travel for fast, stepless adjustment of test clearance to fit specimens of varying dimensions.
2. Stable Servo‑Hydraulic Oil‑Power Unit High‑pressure pump delivers hydraulic fluid, passing check valves, high‑pressure filters and differential‑pressure valve assemblies before reaching the servo valve. Computer‑generated control signals regulate servo‑valve opening and flow direction, enabling closed‑loop constant‑force and constant‑displacement loading modes. Optimized oil‑circuit layout reduces heat buildup and extends hydraulic‑fluid service intervals.
3. Powerful Open‑Architecture Measurement & Control Platform Supports tensile, compression, shear and bending test modes. Users can freely edit test workflows, standard parameter templates, import‑export test schemes, and configure custom test thresholds. Report output follows open‑format Excel templates; printing supports multi‑batch sample output with user‑defined sorting rules. Multi‑level account authorization separates administrator and regular‑tester permissions to prevent unintended parameter changes.
4. Multi‑Layer Hardware‑Software Safety Interlock System When measured force exceeds 103 % of maximum rated capacity, overload protection triggers and cuts off the oil‑pump motor automatically. Travel‑limit protection activates once the piston hits upper‑stroke boundary, shutting down pump power supply to avoid mechanical collision damage.
5. Full‑Range Standard Fixture Kit The machine ships complete with tensile gripping assemblies, compression platens and bending test jigs. Jaw options accommodate round‑bar specimens of different diameters and flat‑plate samples of varied thickness and clamping width. Manual or automatic wedge‑type clamping configurations are selectable according tonnage grade.

Complete Technical Specification Sheet

Standard Test Operating Workflow

1. Pre‑Run Inspection & Parameter Setup Check hydraulic‑oil level, pipeline connections and safety interlock status. Boot the dedicated test software; select or edit test procedure, configure force limits, stop‑conditions and report template.
2. Adjust Test Space & Mount Specimen Drive movable cross‑head via motor‑chain‑screw mechanism to set proper cavity height. Secure test sample inside corresponding tensile / compression / bending fixture.
3. Zero‑Point Calibration Perform force‑value and displacement zeroing before formal loading to eliminate initial mechanical offset.
4. Automatic Closed‑Loop Test Execution Start the test sequence. Servo‑hydraulic system loads sample following preset procedure. System continuously captures force, displacement and deformation data and renders real‑time curves.
5. Post‑Test Data Review & Report Export Upon specimen fracture or reaching termination criteria, the test halts automatically. Review characteristic‑point data, edit report content and export records to Excel format.
6. Machine Shutdown Procedure Retract piston and cross‑head to home position, remove tested specimen, tidy fixtures. Exit software, shut down hydraulic power unit and cut main power supply.

Wide Industrial Application Scenarios

Metallurgical & Steel‑Material Enterprises

Rebar, alloy bar and metal profile mechanical‑property inspection for factory‑release acceptance.

Construction‑Material Laboratories

Structural‑steel component, building‑alloy‑material tensile, compression and bending performance evaluation.

Aerospace & Light‑Industry Institutes

High‑strength alloy and special non‑metallic material mechanical‑characteristic research for equipment development.

University & Research Institutions

Material‑science teaching labs; R&D mechanical‑performance testing for new‑material projects.

Third‑Party Accredited‑Testing‑Organizations

Carry‑out GB‑compliant material qualification tests and issue formal inspection documents.

Standard Factory‑Full‑Delivery Kit

1. KR‑210A electro‑hydraulic servo tester main host (lower‑cylinder dual‑space frame)
2. Hydraulic power‑station assembly and complete hydraulic‑piping set
3. Movable cross‑head, chain‑screw space‑adjustment transmission unit
4. Full‑set standard fixtures: tensile wedge‑grips, compression platens, bending‑test jigs
5. High‑precision force‑measurement, displacement‑acquisition modules
6. Brand‑name industrial desktop computer + printer hardware bundle
7. Multilingual operation manual plus test‑software CD‑ROM
8. Factory‑issued force‑and‑displacement metrology calibration certificate

Global Distributor & After‑Sales‑Support

We provide remote technical guidance covering workflow editing, parameter tuning and routine equipment maintenance. Spare‑part inventory includes servo‑valves, pressure‑sensors, hydraulic seals and replacement fixture jaws. Custom‑tonnage variants, enlarged‑space frames and special‑purpose fixture assemblies are available for bulk‑order customers. Regional exclusive‑agent benefits include priority production scheduling, OEM private‑branding services and full‑set HD product‑marketing‑image packages.

Product‑Banner‑Marketing‑Slogan

KR‑210A 2400kN Electro‑Hydraulic Servo Universal Tester | Lower‑Mounted‑Cylinder Dual‑Space For Metal & Non‑Metal Tensile Compression Bending Test

Core‑Feature‑Labels‑For‑Product‑Images

Dual‑Space Lower‑Cylinder Frame | Servo‑Hydraulic Closed‑Loop Control | Open‑Editable Test Procedure | Customizable Excel Report Template | Multi‑Level User Permission | Overload & Stroke Dual Safety Protection

Safety‑Operation‑Reminder

Verify specimen secure clamping before starting high‑force testing. Keep personnel outside the specimen fracture risk zone. Inspect hydraulic tubing and sealing components periodically.