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Hydraulic servo universal testing machine

Hydraulic servo universal testing machine

Model: WAW series, Computer control, 300Kn, 600KN, 1000KN

Hydraulic Servo Universal Testing Machine is a high-precision mechanical property testing device that integrates hydraulic drive technology, servo control systems, and digital data acquisition/analysis. It is designed to conduct static and dynamic mechanical tests on various materials (metallic, non-metallic, composite, etc.) and structural components, including tension, compression, bending, shear, torsion, creep, fatigue, and impact tests.


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.  

General introduction

United Test make Universal Testing Machines are known for their long lasting trouble-free performance and highest quality material used in the manufacturing process. The Hydraulic universal testing machine can perform tension, compression, flexure/bending and shearing test for kinds of specimens. Suitable for metal and nonmetal material, such as iron, steel, steel bar, rebar, cement, concrete, steel rod and so on.
Hydraulic Servo Universal Testing Machine is a high-precision mechanical property testing device that integrates hydraulic drive technology, servo control systems, and digital data acquisition/analysis. It is designed to conduct static and dynamic mechanical tests on various materials (metallic, non-metallic, composite, etc.) and structural components, including tension, compression, bending, shear, torsion, creep, fatigue, and impact tests.


Specially design for production, research, student training and industrial laboratory. Available in wide range of loadframe capacities (300kN to 2000kN)/(10Ton to 200Ton) and with combination of control panels (Digital, Computerised) makes United Test product range suitable for every customer requirement.

Load weighing system meets or exceeds the requirements of the following standards: ASTM E4, EN10002-2, BS 1610, DIN 51221, ISO 7500-1.

Key Features

  • Display type and control mode
  • Features
  • High-precision Servo Control
  • Stable & Powerful Loading Performance
  • Intelligent Data Management
  • Versatile & Adaptive Structure
  • Robust & Durable Design

Computer screen to display test result, computer software operate loading model, double working space, tensile test at upside of crosshead, compression and bending test between working bench and crosshead.



1 WEW series is computer screen to display test result, manual operate loading model, double working space, tensile test at upside of crosshead, compression and bending test between working bench and crosshead. 
2 Total six columns structure, four column and two leading screw to make the machine more stable and long working life.  
3 Add 10mm sliding plate between jaws and jaw clamping plate, to make jaw clamping plate working more long time.            
4 Oil cylinder adopt clearance seal, improve accuracy and decrease friction.
5 Driver system: It adopts the hydraulic pressure to drive the cylinder, so loading on the specimen to perform the test. Hydraulic station supplies super and stable pressure to the system; the soundproof insulation can reduce the noise level of the power pack to 75 dB (A), with lower noise, tiny energy consuming and lower heat. 
6 Crosshead (the middle beam) movement is by mean of motor, chain at the bottom of loadframe, driven leading screw to make crosshead up and down. 
7 Security: Ram stroke position limiter; Emergency switch; the control system can protect automatically once overload.



Adopts closed-loop servo control technology, achieving precise regulation of loading rate (0.001mm/min to 500mm/min) and load holding (error ≤ ±0.5%);

Supports multi-mode control (load control, displacement control, strain control) and seamless switching between modes to meet diverse test requirements (e.g., creep test requires stable strain control, while tensile test needs load/displacement control).

Hydraulic drive provides ultra-high load capacity (up to 2,000kN or more), suitable for testing large-scale components (e.g., steel structures, concrete beams) and high-strength materials (e.g., aerospace alloys, industrial-grade steel);


Hydraulic system operates with low noise and minimal vibration, ensuring stable loading without impact, avoiding damage to samples and equipment.

Real-time display of test curves (force-displacement, force-strain, stress-strain) and automatic calculation of key mechanical parameters (yield strength, tensile strength, elongation, elastic modulus, etc.);


Data is stored in an unalterable format, supporting backup, export (Excel/PDF/Word), and traceability; some models integrate with Laboratory Information Management System for centralized data management.

Interchangeable fixtures (tensile, compression, bending, shear) enable multi-type tests on a single machine;


Adjustable test space (vertical/horizontal) adapts to samples of different sizes (from small metal sheets to large concrete blocks).

Host frame is made of high-strength alloy steel with anti-corrosion treatment, resistant to fatigue and deformation;


Hydraulic components adopt international brand parts (e.g., Moog servo valves) with low failure rate and long service life.

Main technical specification

ModelWAW-300DWAW-600DWAW-1000DWAW-2000Y
Max. load300KN600KN1000KN2000KN
Column Number4 column and 2 leading screw, total 6 columns
Measuring force range2%~100%
Accuracy of load±1% of indicated   value
Accuracy of deformation±0.5%, resolution:   0.01mm
Constant load, displacement,   deformation control Range0.4%~100%FS
Deformation rate control accuracyRate<0.05%FS,accuracy ±2.0%     Rate≥0.05%FS, accuracy ±0.5%
Deformation measuringClip-on extensometer, standard gauge 50mm, extension 5/10/25mm
Max. tensile space800mm800mm800mm1000mm
Max. compression space700mm700mm700mm900mm
Effective test width space520520655740
Column Interval distance600600755860
Flat specimen range0~15mm0~30mm0~40mm0~60mm
Round specimen rangeφ10~φ32mmφ13~φ40mmφ13~φ60mmφ15~φ70mm
Compression platen dia.200*200mm200*200mm200*200mm204*204mm
Bending support roller distance450 mm450 mm450 mm450 mm
Bending roller width140mm140mm140mm160mm
Bending roller dia.30mm30mm40mm50mm
Piston stroke250mm250mm250mm250mm
Max. piston speed100mm/min100mm/min100mm/min60mm/min
Clamping modeHydraulic automatic
Dim. of frame910*550*2370mm960*650*2600mm1160*1100*2600mm
Dim. of control box1100×700×950mm
Weight2800kg3000kg4000kg8500kg
Standard AccessoriesBig Load frame, servo oil   source, control box, imported ATOS servo valve, oil Pump;Load cell, liner displacement sensor, tensile test Jaws, compression platen,   bending test accessory,PC, printer, Professional   software, tools, anchor bolts, operation manual


Main accessories (Standard delivery with machine)

High Stiffness Frame (C/D type)1 set
Controlled box (Oil cabinet)1 set
Oil Pressure sensor1 set
Hydraulic power system1 set
Photoelectric encoder for displacement1 set
Tension test clamping body (half open crosshead)

Flat Jaw (0~20mm, 20-40mm);Each 1 set
Round Jaw(Φ13-Φ26, Φ26-Φ40, Φ40-Φ60 )Each 1 set
Compression test fixture (Dia.160mm)1   set
Bending Accessories1   set
Tool kit (screwdriver, spanner etc.,)1   set
Professional testing software(SmartTest, English version)1   set
      Metal tensile testing method (ISO 6892);  
      Compression testing method (ASTM E9);
      Customize testing method function available.
Computer (HP or LENOVO computer, 19-inch LCD monitor, English Win10 system)1   set
Printer (HP A4 color inkjet printer)1   set
Documents (Manual, packing list, certificate)


Standard

ASTM E9 Metallic Compression Test –

ASTM E9 Standard Test Methods of Compression Testing of Metallic Materials at Room Temperature

ASTM E9 defines axial‑force uniaxial compression test procedures for metallic materials under room‑temperature conditions. It specifies apparatus, specimen design, operation steps, calculation rules and reporting requirements, with special mandatory for cemented‑carbide testing.

ISO 6892-1 Metallic materials - Tensile testing –

ISO 6892 specifies the method for tensile testing of metallic materials and defines the mechanical properties which can be determined at room temperature.  Related standard ASTM E8 , JIS Z2241 Method of tensile test for metallic materials.

ISO 15835 Steel Rebar Reinforcement couplers tensile test –

ISO 15835-1:2009 specifies requirements for reinforcement couplers, hereafter called couplers, to be used for splicing of steel reinforcing bars. For couplers to be used for mechanical splices in reinforced concrete structures under predominantly static loads and additional requirements for couplers to be used in structures subject to high cycle elastic fatigue loading and/or to low cycle elastic-plastic reverse loading.

ISO 15835-1:2009 is intended to be applicable in relation to the various reinforced concrete design standards as well as in relation to the various standards for steel reinforcing bars. also provides directions for the evaluation of conformity of couplers.

ASTM D2290 Apparent Hoop Tensile Strength Testing –

ASTM D2290: Standard Test Method for Apparent Hoop Tensile Strength of Plastic or Reinforced Plastic Pipe

This test method covers the determination of the comparative apparent tensile strength of most plastic products utilizing a split disk or ring segment test fixture, when tested under defined conditions of pretreatment, temperature, humidity, and test machine speed. This test method is applicable to reinforced-thermosetting resin pipe regardless of fabrication method. This test method also is applicable to extruded and molded thermoplastic pipe.


ASTM A1061, A416 Multi-Wire Steel Prestressing Strand Tensile Elongation Test –

ASTM A1061 tensile test for breaking elongation stress relaxation on steel wire deals with the standard types and grade requirements of seven-wire, uncoated steel strands for use in the construction of pre-tensioned and post-tensioned pre-stressed concrete. 

The two types of strand specified by the ASTM A1061 specification are low-relaxation and stress-relieved (normal relaxation). The base metal shall be made of carbon steel and shall undergo stranding and continuous thermal and mechanical treatment. Final product requirements of ASTM A1061 shall be furnished on reels or in reelless packs for packaging and marked with two strong tags for identification. The requirements specified in ASTM A1061 shall also be applicable for pre-stressed ground anchor construction.

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Beijing United Test Co., Ltd.