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Bench top Electronic Tensile Testing Equipment

Model: WDW-100Y/ WDW-200Y / WDW-300Y (100 ~300KN)

Bench-top electronic tensile testing equipment is a compact, high-precision material testing solution engineered for low-to-medium load (0.1N–50kN, typical mainstream range 2N–20kN) tensile, compression, peeling, tearing, and bending tests . Designed to fit standard laboratory workbenches, it replaces bulky hydraulic systems with an AC servo motor + precision ball screw drive system, delivering stepless speed adjustment and closed-loop control of force, displacement, and strain.


Unlike floor-standing industrial testers, its lightweight (150–200kg for small models) and compact footprint (1–2㎡) make it ideal for R&D labs, quality control (QC) departments, educational institutions, and small-batch production facilities. It excels in measuring mechanical properties of small-sized specimens (e.g., thin films, wires, plastic pellets, textile fibers) with high precision, complying with international standards such as ASTM D638 (plastics), ISO 6892-1 (metals), and GB/T 1040 (polymer materials) .

General introduction

Bench-top electronic tensile testing equipment is a compact, high-precision material testing solution engineered for low-to-medium load (0.1N–50kN, typical mainstream range 2N–20kN) tensile, compression, peeling, tearing, and bending tests . Designed to fit standard laboratory workbenches, it replaces bulky hydraulic systems with an AC servo motor + precision ball screw drive system, delivering stepless speed adjustment and closed-loop control of force, displacement, and strain.


Unlike floor-standing industrial testers, its lightweight (150–200kg for small models) and compact footprint (1–2㎡) make it ideal for R&D labs, quality control (QC) departments, educational institutions, and small-batch production facilities. It excels in measuring mechanical properties of small-sized specimens (e.g., thin films, wires, plastic pellets, textile fibers) with high precision, complying with international standards such as ASTM D638 (plastics), ISO 6892-1 (metals), and GB/T 1040 (polymer materials) .

Core Advantages of Bench-Top Electronic Tensile Testing Equipment
Compared to hydraulic tensile testers (which are optimized for 50kN+ heavy loads), bench-top electronic models offer unmatched advantages in low-load, high-precision scenarios:
(1) Superior Precision & Stability
Accuracy Class: 0.5 level (±0.5% of reading) vs. 1 level (±1% of reading) for hydraulic models, enabling stable control of micro-loads (≥1N) and small displacements (resolution 0.001mm) .
No Environmental Interference: Eliminates load fluctuations caused by hydraulic oil compressibility, temperature changes, or seal leakage—critical for testing fragile materials (e.g., biomaterials, microelectronic components).
(2) Cost-Efficiency & Low Maintenance
Energy Saving: Consumes only 1–5kW (vs. 5–20kW for hydraulic testers), cutting electricity costs by up to 75% over a 10-year lifecycle .
Oil-Free Operation: No hydraulic oil, filters, or seal replacements required; maintenance is limited to periodic lubrication of ball screws (total lifecycle maintenance cost 20–30% lower than hydraulic models) .
Low Failure Rate: Simplified mechanical structure reduces risks of oil circuit blockage or leakage—common issues with hydraulic systems.
(3) Space & Usability Benefits
Compact Design: Occupies 1–2㎡ of bench space (vs. 3–5㎡ for hydraulic testers with separate hydraulic stations); easy to install, relocate, or integrate into cleanrooms/laboratories.
Quiet Operation: Runs at ≤60dB (conversational volume) vs. ≥75dB for hydraulic pumps, meeting laboratory noise standards.
Fast Response: Stepless speed range (0.001–500mm/min) with instant speed adjustment (hydraulic models have slow response due to system inertia) .
(4) Flexible Automation
Intuitive software enables one-click test setup, real-time data capture, and automatic calculation of key metrics (tensile strength, elongation, Young’s modulus).
Supports integration and remote monitoring—eliminating manual data recording errors common with hydraulic testers.


Working Principle: 
UTMs operate through a systematic process:
1, Force Application: A precisely controlled drive system applies tensile or compressive force to a specimen
2, Deformation Measurement: High-precision sensors record the specimen's response
3, Data Analysis: A computer system processes data to calculate key mechanical properties

Key Features

  • Load frame and driven type
  • Grip and test fixture
  • Security function
  • Control system, Software
  • Powerful Function Software
  • Other Feature
  • High Accuracy Features

Load frame and driven type

Compact construction applies aluminum alloy profile load frame cover structure;

Frame are proof loaded to 200% of capacity, with concentric arrangement of the drive lead screw and crosshead guide which assure high accuracy and strong reliability;

Computer Controlled Electronic Universal Testing Machine

Leading screw                        AC servo motor


Top and middle crosshead processed through shot blasting & baking paint technology, appearance, no corrosion and no need lubrication oil maintenance.

Adopt Japan Panasonic/FUJI AC servo motor and driving system, ensure transmission and moment of force stable;

Adopt Circular Arc Profile Synchronous Belt Transmission, eliminate dual direction clearance, prolongs the life of synchronous belt;

Multiple load cell in one machine available.

Advanced USA Vishay celtron load cell ensure the force measuring accuracy and repeatability, Overload capacity 150%.

Compatibility concept for continuous component expansion;

Grip and test fixture

Manual, hydraulic, pneumatic tensile test fixture available; 

Removable grip-jaws can be changed rapidly to meet variable wider applications in tension test. 

Versatile test fixture like peeling, shear, bending, flexure, tear, burst, puncture, compression test for kinds of material;



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Bolts tensile fixture

Metal shear test

Peeling test fixture

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Webbing belt tension test

Thin wire twisting tensile grip

Rubber tensile fixture


Security function

Sensor of position limitation switch; 

Emergency stop switch; 

Hardware driving system overload protection, over voltage, current protection;

Software over load protection.

Control system, Software

Based on full digital STC8800 measuring and control card; Data collection system use 4 channel of high accuracy 24 digit A/D conventer;

Real time load, deformation, corsshead displacement, test precess four kind close loop control;

Resolution can upto 1/500000, full range without step;

Level authorization management function: to improve sftware and data security, can set different password to realize several class authorization management. Different user with different right to operate the machine, avoiding unexpected mistake because human error.

PC control system, with advantage of high integration, reliable performance, easy adjusment etc. can real time collect test data, on-time display test curve,  test data file can be saved as ACCESS and SQL server, convenient for customer's data resource storage.

Automatically generate the testing report; the testing report can be displayed and printed, also it can be export in Excel/Access Format. Also, the user can edit the report format as requirement in report template;

Result recall function: after the test and saved, customer can open the test data and re-analysis at any time.

Results compare: observe several curve at same time, can fold curve or portion enlarge to analyze and compare sample characters.

Load~Time, Load~displacement, Displacement~time etc. curve smoothly switch, display test data, save, analysis and print.


Computer Controlled Electronic Universal Testing Machine

Computer Controlled Electronic Universal Testing Machine

Main interface for test and result display


Computer Controlled Electronic Universal Testing Machine

Multiple load cells


Computer Controlled Electronic Universal Testing Machine

Test Report/Batch test report/ Curve superposition for comparison



USB Hand remote controller with magnetic backplate

Test data zeroing, test operation, speed change, adjust crosshead up and down moving, display the displacement. 

Non fumigation wooden package (2620*1200*970mm)


Computer Controlled Electronic Universal Testing Machine

Force Measurement
Typical accuracy: ±0.5% of reading (Class 0.5) down to 1/1000th of full capacity
Resolution: Up to 1/500,000 of full scale, detecting minute force changes
Load cells: High-precision strain gauge sensors calibrated to ISO 7500-1 standards
Displacement & Deformation
Position repeatability: As high as ±0.001mm
Extensometer accuracy: ±0.5% with resolutions down to 1μm
Non-contact options: Laser or video extensometers for fragile materials or high-elongation tests
Data Acquisition
Sampling rates: Up to 5kHz for capturing rapid material behavior
Precision control: Speed accuracy of ±0.1% ensures consistent testing conditions

Main technical specification

Load capacity5KN/10KN/20KN/50KN   (0.4%--100%)
Frame proof load capacity150% of rate capacity
Multiple load cell in one machine functionYES
Load AccuracyClass 0.5 according ISO7500-1
Load cell overload capacity150% of rate capacity
Load measuring resolution1/500000 FS, stepless
Stiffness of frame0.024mm/t
Position / displacement resolution0.001mm
Crosshead travel1200mm
Tensile test space700mm
Compression test space800mm
Effective testing width (Clearance between columns)500mm
Standard  tensile test fixtureManual wedge type
Wedge tensile fixture Flat specimen range0-14mm  
Wedge tensile fixture Flat specimen rangeΦ4-Φ14mm
Compression platen diameterΦ100mm
Testing speed range0.001 mm/min~500 mm/min, stepless, adjustable arbitrarily   (Optional max. 1000mm/min)
Weight480kg
Standard Power220/110V, 50/60HZ, 1 phase, 0.75Kw
Dimensions860*700*1750mm
Analysis softwareSmartTest English version
Working systemMS Win10 / Win11
Frame structureStandard:   Dual test spaceOptional:   Single test space

Specifications:Load measurement accuracy: +/- 0.5% of applied load from 2% to 100% capacity; extended range down to 1% capacity with   accuracy of 1% of applied load

Position measurement accuracy: +/- 0.01% of reading or 0.001 mm, whichever is greater

Deformation measuring accuracy and measuring range: 2%~100%FS, ≤±0.5%

Strain measurement accuracy: +/- 0.5% of indicated load from 0.2% to 100% capacity FS

Speed accuracy: ±1%(0.001~10mm/min),±0.5%(10~500mm/min) Operating temperature range: 0 to 38 degrees C(32 to 100 degrees F)

Storage temperature range:  -10 to 45 degrees C (14   to 115 degrees F)

Humidity range: 10% to 90%   non-condensing, wet bulb method

Power: standard optional voltages110/220VAC, 50-60 Hz; power must be free of spikes and surges   exceeding 10% of the nominal voltage. 

Notes: 

1. Load weighing system meets or exceeds the requirements of the following standards: ASTM E4, EN 10002-2, BS 1610, DIN 51221, ISO 7500-1. UNITEDTEST recommends that systems are verified at installation in accordance with ASTM E4 and ISO 75001. 

2. Strain measurement system meets or exceeds the requirements of the following standards: ASTM E83, EN 10002-4, BS 3846 and ISO 9513. 

3. These models conform to all relevant European CE 

Notes: 

Dual test space structure: Tensile test at upside of crosshead, Compression and bending test at downside of crosshead.           

Tensile, Compression and bending test all done at downside of crosshead (the three type test fixture interchange for different test).



Main accessories (Standard delivery with machine)

High Stiffness Frame: 1 set
Servo driving system: (Panasonic)
Servo motor: (Panasonic)
1 set
Load cell: (Celtron high precision load cell)1 set
Decelerator and deceleration system1 set
Leading screw:1 set
Wedge tensile test fixture1 set
Compression test fixture(Φ100mm)1 set
Professional testing software(FastTest, English version)1 set
Bending test fixture1 set
Computer1 set
Printer1 set
Documents (Manual, packing list, certificate)

Webbing tensile fixture

UNITEDTEST Webbing tensile fixture. Nickle coating. 

UNITEDTEST optional 800mm large extension extensometer. 

Nickle coating manual wedge tensile fixture

UNITEDTEST manual wedge tensile fixture, upper clamper. Nickle coating. 

UNITEDTEST optional 800mm large extension extensometer. 

manual wedge tensile grip

UNITEDTEST manual wedge tensile fixture, lower clamper. Nickle coating.

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Frequently Asked Questions

Dual space and Single space difference

UnitedTest offer two kinds frame structure for the test space, dual test space and single test space. 


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Advantage of dual space structure: 
1, the middle beam only go down direction for all tensile, compression test, the load cell only one-way loading, it’s better for the load cell. 
2, No need frequently change the test fixture from tensile, compression etc

Advantage of dual space structure: 
For some user, only or frequently to do tensile test, the tensile grips at lower place, easy for operation to install the specimen.  
(For some tester like 200KN and 300KN, frame is higher like 2600mm, the tensile grips at upper place is not very suitable to clamping the specimen) 


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Beijing United Test Co., Ltd.