Key Features
- Determines the flex resistance of flexible barrier materials by subjecting specimens to a controlled flex condition: twisting, horizontal and crushing
- Meets and exceeds ASTM F392, INDA Standard Test IST 160.1, EDANA 220.0-96, MIL-B-131H Fed. Std. 101 Method 2017 and DEF STAN 81-75/2
- Flex rate of 45 strokes per minute; twist of 440 degrees on the full stroke and 400 degrees on the partial stroke
- Full stroke 6 in and partial stroke 3.25 in; the stroke length can be adjusted mechanically while the twist motion stays constant
- Two test samples, sample size 200 × 280 mm, on a 90 mm diameter mandrel
- Digital counter shows the number of cycles; predetermined electric counter, 6 digits
- Optional low temperature chamber with a double wall stainless steel chamber, automatic temperature controller and nitrogen supply
- Supplied with a NIST calibration certificate, conformance certificate and operator’s manual; 12 months warranty and lifetime technical support
About the CSI-46 Gelbo Flex Tester
The CSI-46 from CSI, USA, is a Gelbo flex tester used to determine the flex resistance of flexible barrier materials. It subjects the specimens to a controlled flex condition, which may be twisting, horizontal and crushing of the material. It is manufactured from quality components and superior workmanship, and it meets and exceeds the requirements of ASTM F392, INDA Standard Test IST 160.1, EDANA 220.0-96, MIL-B-131H Fed. Std. 101 Method 2017 and DEF STAN 81-75/2.
A drive mechanism produces a constant rotating and linear motion for the two specimen holders. The stroke length can be adjusted mechanically when the test requires it, while the twist motion is maintained constant, and the number of cycles is shown on a digital counter. The control panel carries all the necessary operation controls, and a predetermined electric counter with 6 digits is included. The CSI-46 meets ASTM F392; other test methods must be specifically requested at the time of order.
The flex rate is 45 strokes per minute. The full stroke is 6 in with a twist of 440 degrees, and the partial stroke is 3.25 in with a twist of 400 degrees. Two test samples of 200 × 280 mm are tested on a 90 mm diameter mandrel.
An optional low temperature conditioning chamber lets the operator test materials at low temperatures. It is a double wall stainless steel chamber with an automatic temperature controller, it works with a nitrogen supply, and it is controlled by simple programming of the temperature controller. The CSI-46 comes with a NIST calibration certificate, a conformance certificate, an operator’s manual and a software user’s guide, with a 12 months warranty and lifetime technical support.
CSI-46 specifications
| Model | CSI-46 |
|---|---|
| Manufacturer | CSI, USA (Custom Scientific Instruments, Inc.) |
| Type | Gelbo flex tester for the flex resistance of flexible barrier materials |
| Flex conditions | Twisting, horizontal and crushing of the material |
| Test standards | ASTM F392, INDA Standard Test IST 160.1, EDANA 220.0-96, MIL-B-131H Fed. Std. 101 Method 2017, DEF STAN 81-75/2 |
| Flex rate | 45 strokes per minute |
| Stroke length | 6 in (full stroke), 3.25 in (partial stroke); adjustable mechanically |
| Twist, full stroke | 440 degrees |
| Twist, partial stroke | 400 degrees |
| Number of test samples | Two |
| Sample size | 200 × 280 mm |
| Mandrel size | 90 mm diameter |
| Counters | Digital counter for the number of cycles; predetermined electric counter, 6 digits |
| Low temperature chamber (optional) | Double wall stainless steel chamber, automatic temperature controller, nitrogen supply |
| Power supply | 115 V AC, 60 Hz, single phase; 220 V AC, 50 Hz, single phase |
| Dimensions | Approx. 40 × 16 × 14 in |
| Weight | Approx. 200 lb (90 kg) |
| Documentation | NIST calibration certificate, conformance certificate, operator’s manual, software user’s guide |
| Warranty and support | 12 months warranty; lifetime technical support |
Specifications are as published by the manufacturer, CSI. Download the product brochure or contact us to confirm the configuration for your laboratory.
Gelbo flex tester: frequently asked questions
What does the CSI-46 Gelbo flex tester measure?
It determines the flex resistance of flexible barrier materials. The specimens are subjected to a controlled flex condition, which may be twisting, horizontal and crushing of the material.
Which test standards does the CSI-46 meet?
It meets and exceeds the requirements of ASTM F392, INDA Standard Test IST 160.1, EDANA 220.0-96, MIL-B-131H Fed. Std. 101 Method 2017 and DEF STAN 81-75/2. The standard configuration meets ASTM F392; other test methods must be specifically requested at the time of order.
What are the flex rate, stroke and twist?
The flex rate is 45 strokes per minute. The full stroke is 6 in with a twist of 440 degrees, and the partial stroke is 3.25 in with a twist of 400 degrees. The stroke length can be adjusted mechanically while the twist motion is maintained constant.
How many samples can it test, and what size?
Two test samples, each 200 × 280 mm, on a 90 mm diameter mandrel. A drive mechanism gives a constant rotating and linear motion for the two specimen holders, and the cycles are shown on a digital counter.
Can the CSI-46 test at low temperatures?
Yes, with the optional low temperature chamber: a double wall stainless steel chamber with an automatic temperature controller, working with a nitrogen supply and controlled by simple programming of the temperature controller.
What is supplied with the CSI-46, and what warranty does it have?
It comes with a NIST calibration certificate, a conformance certificate, an operator’s manual and a software user’s guide. The warranty is 12 months and technical support is lifetime. It runs on 115 V AC, 60 Hz or 220 V AC, 50 Hz, single phase. A brochure is available from the button at the top of this page.
Where can I buy the CSI-46 Gelbo flex tester in India?
Multiflo Instruments, based in Navi Mumbai, supplies CSI testing instruments in India. Our team can advise on the CSI-46 Gelbo flex tester, send a quotation, and arrange installation, training, calibration and after-sales service. Use the Contact Us button or call +91-22-44516175.
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