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ASTM D2412 ISO 9969 Plastic pipe ring stiffness testing machine

ASTM D2412 ISO 9969 Plastic pipe ring stiffness testing machine

Model: RST-250

RST-2 series Plastic pipe ring stiffness testing machine is a testing device specially designed for plastic and composite pipes, used to measure the stiffness of circular cross-sections. It is also suitable for testing the static mechanical properties of metals and non-metals (including composites), such as tensile, compression, bending, shear, peeling, and tearing performance. The equipment is equipped with a dedicated ring stiffness deformation measurement device to ensure the accuracy of deformation measurements. It is an ideal testing and inspection tool for municipal authorities, quality inspection, chemical industries, and plastic pipe manufacturers.

Conform with Standard ISO 9969, ISO 9967


Feature of RST-2 series:

Suitable for small or middle size pipe test (1000mm ~1200mm dia.);  computer control, High level quality.


General introduction

RST-2 series Plastic pipe ring stiffness testing machine is a testing device specially designed for plastic and composite pipes, used to measure the stiffness of circular cross-sections. It is also suitable for testing the static mechanical properties of metals and non-metals (including composites), such as tensile, compression, bending, shear, peeling, and tearing performance. The equipment is equipped with a dedicated ring stiffness deformation measurement device to ensure the accuracy of deformation measurements. It is an ideal testing and inspection tool for municipal authorities, quality inspection, chemical industries, and plastic pipe manufacturers.

Conform with Standard ISO 9969, ISO 9967

ASTM D2412 ISO 9969 Plastic pipe ring stiffness testing machine

Feature of RST-2 series:

Suitable for small or middle size pipe test (1000mm ~1200mm dia.);  computer control, High level quality.

Main Features

  • Key feature
  • Security function
  • Control system, Software
  • Standard

1, Two column design ensures high rigidity; 

2, Advanced closed loop AC servo control system increases the accuracy and control of the test sequence.  

4, Our unique inner diameter measuring system makes mounting of even the largest pipe easy. 

5, The software is designed in-house and is very easy to use and runs on most modern computers. 

1), Sensor of position limitation switch; 

2), Emergency stop switch; 

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

4), Software over load protection. 

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

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

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

4), 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.

5), 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.

6), 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;

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

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

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

ISO 9969  Thermoplastics pipes -- Determination of ring stiffness

ISO 9967  Thermoplastics pipes -- Determination of creep ratio

ASTM D2412 Standard Test Method for Determination of External Loading Characteristics of Plastic Pipe by Parallel-Plate Loading

EN 1446 Plastics piping and ducting systems - Thermoplastics pipes - Determination of ring flexibility

DIN 16961 Thermoplastics pipes and fittings with profiled wall and smooth pipe inside

AS/NZS 1462.22 Methods of test for plastics pipes and fittings Method 22: Thermoplastics pipes – Determination of ring stiffness

Main technical specification

Model: RST-2 seriesSuitable for small or middle size pipe test (less than 1200mm dia.)
Max. load10KN, 20Kn, 30Kn, 50Kn, 100Kn
Load resolution0.01N
Load cell quantity1 to 3 pcs
Load accuracy±1% of reading value
Crosshead travel100mm-3500mm
Pipe Diameter range16mm to 3200mm
Speed range of crossbeam0.1 mm/min~500 mm/min, stepless, adjustable freely
Width of test space420mm to 1000mm
Displacement accuracy0.001mm
Power220V/380V, 50Hz/60HZ
Pipe inner diameter measuring deviceYES
Creep Ratio Test(option)ISO 9967
Time range1~9999h59min59s
Timing resolution1s


Main Accessories

ItemQuantity
Frame1 set
   (include load cell, servo motor etc.,)
Compression platen (400*400mm)1 set
Pipe inner diameter measuring device1 set
Computer (English Win10)1 set
Professional ring stiffness test software (English)1 set
Documents (Manual, packing list, certificate)



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Beijing United Test Co., Ltd.