Micropitting Tester
MPT-3000

Pitting, Rail Friction, Rolling Mill,Sliding-rolling Contact, Traction CoefficientResearch and Quality Control• Elastohydrodynamic
lubrication

Automation and Analysis

Wide Load Range - Micro and Macro
Load cells with forces up to 5000 N• Electric vehicle• Surface treatments• Hydraulic fluids

Rotation Speed Control
Servo-controlled high torque, high-speed motors• Pitting

Environmental Control• Rail friction

Control temperature with high-resolution controllers• Rolling mill
• Sliding-rolling contact• Traction coefficientHigh Torque Motors
High torque motors (up to 60 Nm*) for smooth rotation and a wide
range of testing• Traction fluids

Run Several Million Cycles in a Short Duration
Several In-line Sensors to Monitor Real-time Surface Interactions

BECDFA

APlatform

B

Loading Mechanism

CRollers

D

Torque Sensor

E

Environmental
Control

Introduction

Rtec-Instruments’ Micropitting Testeror Triple Disk Roller, the MPT-3000
is an ideal rolling contact machine
to study pitting, traction, wear, andmore under various combinations ofrolling and sliding. The open platformarchitecture allows for easy access tothe samples and setup. In addition,
the fully automated and advanced
controllers allow for high repeatability
and precision measurements withthe broadest test range in load,temperature, and speed.

Active Feedback Loop Control

The tester comes with closed-loop
active feedback control over many
parameters.

based on signals from several in-line
sensors. For example, users can put
stop test conditions such as:“when friction increases by 30% orwhen the acoustic sensor shows afailure initiation signal, stop the test”.
This condition allows the user to doa post-analysis of the sample themoment failure starts to happen. A
few commonly used sensors are:A) Torque Sensor - Patented highresolution in-line dynamic torquesensor to monitor change ingenerated frictional forces.
B) Acoustic Emission - Widefrequency sensors to detect crack
initiation points during the test.

Rotation speed - Controlled using
servo-controlled feedback. The tester
can run at a constant or changing
RPM.

Ease of Use and Automation

Applied force - Controlled using
electro-servo drives. The force ismeasured using high-precision force
sensors with negligible drift, all while
operating at constant or linearchanging force profiles.

Each test can be controlled by a seriesof command blocks forming a
protocol or “recipe.” The data canbe exported into many formats,including ASCII format.

Environmental Control - The tester
allows for testing across a wide
temperature range. In addition,
the test can be run under dry orlubricated conditions.

Accurate Determination ofFailure Events

The MPT-3000 can accommodate
various in-line monitoring sensors
to quantify real-time surface
dynamics. The software allows theuser to stop the test using logic

3 Rollers During TestData Showing
Friction vs. Sliding
Rolling Ratio

The instrument comes standard witha powerful set of software:

The MPT-3000 comes with advanced
high speed, low noise, fast feedback,multiple channels, and controllers
with the highest data acquisition rate
(200 KHz).

Side View of the
MPT-3000

Applications

Wide testing conditions allow theMPT-3000 to be used across several
applications, such as automotive,aerospace,lubricant,railways,coatings, EV vehicles, motors,turbines, and much more.

Software Interface
Page 2

Page 3

Platform Specification
Loading Stage•Motion resolution: 0.1 µm•Maximum speed: 1 mm/s

Load•Max load: 5000 N

Additional Sensors

Facilities Requirement•Acoustic emission•Electrical resistance•Potentiostat

Rotary Drive•Power Requirements:220 / 380 / 480 VAC

Environmental•Pure rolling•Pure sliding•Latest Windows OS•0 to +/- 200% SRR (sliding/rolling•LCD monitorratio)•Standard torque 60 Nm*•Standard speeds*Higher ranges available		•Center pin = 4 m/s 							(@6500RPM)
					•Outside rollers = 18 m/s					(@6500RPM)
					•Rolling Velocity = 4 m/s (@					SRR=0 Pure Rolling)

Computer Console•-35 °C to 150 °C•Dry or with liquids

Rtec-Instruments IncUSA
1810 Oakland Road, Ste B
San Jose, CA, 95131, USA +1 408 708 9226
info@rtec-instruments.com

Rtec-Instruments, CN
China
2nd Floor, Building 3, 69 Olympic St
Jianye District, Nanjing, China, 210019
 +86 25 83210072, +86 18013892749
info@rtec-instruments.cn

Rtec-Instruments SA
EuropeRue Galilée 6,
1400 Yverdon-les-Bains, Switzerland
 +41 24 552 02 60
info.eu@rtec-instruments.com

Rtec-Instruments, JPJapan
Tokatsu Techno Plaza, Rm 409
5-4-6 Kashiwanoha, Kashiwa-shi,Chiba, Japan, 227-0882
 +81 50 5896 9916
info.jp@rtec-instruments.com

www.rtec-instruments.com

MPT-3000-2023-B-02A-EN

2023 Rtec-Instruments Product Catalogue.
All rights reserved.
All specifications are typical and subject to change without notice.

Rtec-Instruments Office
Agent / distributor