About Us

Retrofitmach was established to do test instrument upgrade, maintenance, modernisation and calibration service.Retrofitmach is a global company to upgrade test machines whole around the world. It is not important which country you are located in. Our company has a wide service field and our experienced service engineers will help you to ensure that your testing is being performed accordingly to the See More


EXTENSOMETER OPTIONSRetrofitmach supplies worldwide brand extensometers to customer, according to budget and requirements. Automatic Extensometers Clip-on Extensometers High Temperature Extensometers Long Travel Extensometers Transverse Extensometers Deflection GaugesAutomatic ExtensometersThe automatic extensometers are suitable for almost all samples from a gauge length of 10 mm. Because of its rugged construction and high accuracy, they nearly meet all the applications in measurement of linear strain (determination of the E-modulus up See More

ASTM D412 Tension Testing for Rubber and Elastomers Test Fixtures

ASTM D412 Tension Testing for Rubber and Elastomers Test FixturesTensile Eccentric Roller Grips, High Elongation Extensometer, Sample Cutting Dies Test FixtureRetrofitmach designs and produces ASTM D412 test See More

High Temperature Extensometers

High Temperature ExtensometersClass 0.5 strain measurement according to ISO 9513High precision tensile test strain measurementChangable pulls and knife edges according to specimenWorking temperature up to 1600 See More


Retrofitmach integrates all types of extensometers to customer's existing machines.We are the supplier of tensile test extensometers, compression test deflection gauges and transversal extensometers.EXTENSOMETER OPTIONSAutomatic Extensometers Clip-on ExtensometersHigh Temperature Extensometers See More

Automatic Extensometers

The automatic extensometers are suitable for almost all samples from a gauge length of 10 mm to 1000 mm. Because of its rugged construction and high accuracy, nearly meets all applications in measurement of linear strain. They work without restrictions in both the tensile and compression direction during the tests.The automatic extensometers can be integrated to test systems and can be See More

Clip-On Extensometers

These extensometers are intended for testing a wide scope of materials, including metals, plastics, composites. All will perform both tension and compression strain measurement. The double flexure configuration makes them rough and able to absorb vibrations, which grants higher recurrence activity.They deliver with fast connect pack, making it possible to mount the extensometer on the test example rapidly and effectively with See More

Deflection Gauge

Widely used for measuring deformations in three and four point bending tests, compression tests and a variety of general purpose deformations. These strain gaged devices come with a magnetic base for easy mounting.Features• Full bridge, 350 ohm strain gaged design for compatibility with nearly any test system.• All standard units have linearity readings of 0.25% or better.• Rugged, dual flexure design See More

Long Travel Extensometers

Long Travel ExtensometersRetrofitmach long travel extensometers are precise devices for measuring strain in highly extensible materials such as elastomers, plastics, sheets, films.Designed for using with electromechanical or hydraulic static testing instruments, the extensometers can be used to measure specimens' elongations up to 1000 mm.Long travel extensometer category also includes PVC pipe compression extensometers up to 1000 mm (higher measurement range is See More

Diametral Extensometer

Transversal ExtensometersDesigned for general purpose transverse or diametral strainmeasurement on axially loaded specimens. This model may be usedsimultaneously See More

Video Extensometers

Contactless Strain Sensor for Material TestingVideo extensometers capable of performing proper stress/strain measurements of certain materials, by capturing continuous images of the specimen during test, using a frame grabber See More