Fatigue Testing Machine | FortiTestX – 22
Fatigue Testing Machine FortiTestX 22 is a benchtop strength of materials lab equipment unit for fatigue strength testing of cylindrical metal specimens under rotating cantilever cyclic bending load. A three-phase motor at 2800 rpm and 0.37 kW drives the clamped specimen, with load applied via a moveable plain bearing and spring balance across a 0 to 300 N range, continuously adjustable using a threaded spindle and handwheel. Automatic shutdown on specimen fracture is provided by a stop switch integrated into the bearing, with the total cycle count captured on an 8-digit electronic digital display. A contactless inductive speed sensor monitors rotational speed throughout the test. Three cylindrical steel Ck35 specimens, brass and mild steel test bars (110 mm, 8 mm diameter), and special shape specimens for notching and surface finish experiments are supplied. Three defined experiments cover cyclic bending fatigue strength, notch and surface finish influence, and S-N diagram preparation. Optional LabVIEW-based software (FX-22) enables data logging on Windows. This fatigue testing machine strength of materials lab equipment unit is manufactured by SCIENTICO to ISO 9001:2015 standards; CE marked.
Fatigue Testing Machine FortiTestX 22 is a benchtop strength of materials lab equipment unit designed for fatigue strength testing of cylindrical metal specimens under cyclic bending load using a rotating cantilever configuration. This Fatigue Testing Machine clamps a revolving metal test bar at one end, applies a controlled point force via a spring balance and moveable plain bearing, and subjects the specimen to a sinusoidal bending stress cycle until fracture, with automatic shutdown triggered by a stop switch integrated into the bearing. The FortiTestX 22 includes an 8-digit electronic load cycle and revolutions counter with contactless inductive speed sensor, making it a complete fatigue testing machine strength of materials lab equipment unit for undergraduate materials testing and failure analysis programmes.
Product Overview
The Fatigue Testing Machine FortiTestX 22 is a self-contained benchtop strength of materials lab equipment unit for demonstrating and experimentally confirming the fundamental principles of fatigue testing, including sinusoidal variation of bending stress and S-N diagram preparation. A cylindrical specimen is clamped at one end and rotated by a three-phase motor at 2800 rpm with an output of 0.37 kW. A point force is applied to the rotating bar via a moveable plain bearing using a spring balance, generating a cyclic bending strain in the specimen. The amplitude of the cyclic loading is continuously adjustable using a threaded spindle with a handwheel, allowing load values up to 300 N to be set and varied during testing. The specimen fractures after a defined number of stress cycles due to material fatigue, at which point the stop switch integrated into the bearing automatically shuts down the machine. An electronic load cycle counter with an 8-digit digital display counts the total number of load cycles accumulated up to fracture. A contactless inductive speed sensor measures rotational speed throughout the test. Test bars in brass and mild steel are supplied, all 110 mm in length and 8 mm in diameter, along with special shape specimens for demonstrating the influence of notching and surface finish on fatigue strength. Three cylindrical specimens of steel Ck35 are included. The specimen holder uses a hexagonal fitting for consistent and repeatable specimen clamping. Optional LabVIEW-based software (FX-22) enables data logging and results processing on any Windows operating system.
Fatigue Testing Machine FortiTestX 22 – Technical Specifications
| Field | Details |
|---|---|
| Product Name | Fatigue Testing Machine FortiTestX 22 |
| Model Reference | FortiTestX 22 |
| Product Category | Strength of Materials Lab Equipment |
| Apparatus Type | Benchtop rotating cantilever fatigue testing machine |
| Motor Speed | 2800 rpm |
| Motor Output | 0.37 kW |
| Power Supply | Three phase |
| Load Range | 0 to 300 N |
| Load Adjustment | Threaded spindle with handwheel |
| Loading Method | Moveable plain bearing with spring balance |
| Automatic Shutdown | Stop switch integrated into bearing, activates on specimen fracture |
| Load Cycle Counter | Electronic, 8-digit digital display |
| Speed Measurement | Contactless inductive speed sensor |
| Specimen Holder | Hexagonal |
| Test Bar Materials | Brass, mild steel |
| Test Bar Length | 110 mm |
| Test Bar Diameter | 8 mm |
| Steel Specimens (Ck35) | 3 cylindrical specimens |
| Special Shape Specimens | Supplied for notching and surface finish influence testing |
| Optional Software | FX-22 (LabVIEW-based DAQ, Windows compatible) |
| Manufacturer | SCIENTICO, Ambala Cantt, India |
| Certifications | ISO 9001:2015, CE Marked |
Technical Data – Motor
| Parameter | Value |
|---|---|
| Speed | 2800 rpm |
| Output | 0.37 kW |
| Power Supply | Three phase |
Technical Data – Load and Measurement
| Parameter | Value |
|---|---|
| Load Range | 0 to 300 N |
| Load Adjustment | Threaded spindle with handwheel |
| Load Cycle Counter | Electronic, 8-digit digital display |
| Speed Sensor | Contactless inductive type |
| Automatic Shutdown | Stop switch in bearing, triggers on specimen fracture |
Technical Data – Test Specimens
| Parameter | Value |
|---|---|
| Material | Brass, mild steel (Ck35) |
| Length | 110 mm |
| Diameter | 8 mm |
| Steel Ck35 Specimens | 3 cylindrical |
| Special Shape Specimens | For notching and surface finish experiments |
| Specimen Holder | Hexagonal |
Key Features
- Complete fatigue testing machine strength of materials lab equipment unit: rotating cantilever test frame, three-phase motor, spring balance loading, electronic cycle counter, specimen set, and instruction manual all supplied
- Motor speed 2800 rpm, output 0.37 kW, three-phase power supply for consistent and stable cyclic loading throughout the fatigue test
- Load range 0 to 300 N, continuously adjustable via threaded spindle with handwheel for precise cyclic loading amplitude control
- Moveable plain bearing with spring balance for controlled and measurable point force application to the rotating specimen
- Automatic shutdown on specimen fracture via stop switch integrated into the bearing, preventing post-fracture damage and enabling accurate cycle count capture
- Electronic load cycle counter with 8-digit digital display for precise total cycle count recording up to specimen fracture
- Contactless inductive speed sensor for non-contact rotational speed measurement throughout the fatigue testing machine operation
- Hexagonal specimen holder for consistent and repeatable specimen clamping across all test runs
- Three cylindrical steel Ck35 specimens and special shape specimens for notching and surface finish influence investigation
- Test bars in brass and mild steel, 110 mm length, 8 mm diameter, for cross-material S-N diagram preparation
- Optional DAQ software (FX-22): LabVIEW-based data logging and results processing on Windows
- ISO 9001:2015 certified manufacture; CE marked product
Experiments
- Fatigue strength of bars subject to cyclic bending load
- Influence of different curvature radii and surface finish on fatigue strength
- Preparation of a stress-number (S-N) diagram
Construction and Design
Fatigue Testing Machine FortiTestX 22 is constructed as a rigid benchtop strength of materials lab equipment unit built around a rotating cantilever configuration driven by a three-phase motor at 2800 rpm and 0.37 kW output. The cylindrical test bar is clamped at one end in a hexagonal specimen holder and rotated continuously during the test. A moveable plain bearing carries the point load applied by a spring balance, with the load amplitude adjustable from 0 to 300 N via a threaded spindle and handwheel, allowing continuous variation of the cyclic bending stress amplitude without stopping the machine. As the bar rotates, every cross-section of the specimen experiences a full sinusoidal cycle of bending stress with each revolution, generating the cyclic strain pattern characteristic of rotating bending fatigue tests. The stop switch is integrated directly into the plain bearing assembly and triggers automatic machine shutdown the instant the specimen fractures, preserving the load cycle count on the 8-digit electronic display for accurate S-N diagram data. A contactless inductive speed sensor monitors rotational speed throughout the test without mechanical contact. Special shape specimens with varied notch geometries and surface finishes are supplied alongside the standard cylindrical bars to extend this fatigue testing machine to notch sensitivity and surface finish influence investigations. All construction and materials conform to ISO 9001:2015 quality standards and meet CE marking requirements.
Software, FX-22 (Optional)
Customised software designed in the National Instruments LabVIEW environment for data logging and results processing. Compatible with any Windows-based operating system. The software is optional and selected independently of the base unit.
Scope of Delivery
- 1 x Experimental unit (Fatigue Testing Machine FortiTestX 22)
- 1 x Set of specimens (3 cylindrical steel Ck35, brass and mild steel bars, special shape specimens)
- 1 x Instruction manual
Q1: What motor speed and output does the Fatigue Testing Machine FortiTestX 22 use?
The FortiTestX 22 fatigue testing machine uses a three-phase motor running at 2800 rpm with an output of 0.37 kW, providing consistent rotational speed for repeatable cyclic bending load generation throughout the fatigue test.
Q2: How is the cyclic load amplitude adjusted during the test?
The load amplitude is continuously adjustable from 0 to 300 N using a threaded spindle with a handwheel, acting on a moveable plain bearing that applies the point force to the rotating specimen. Adjustment can be made during machine operation without stopping the test.
Q3: How does the automatic shutdown work in the FortiTestX 22?
A stop switch is integrated into the plain bearing assembly. When the specimen fractures, the bearing detects the event and immediately shuts down the machine automatically, preserving the exact load cycle count on the 8-digit electronic display for accurate S-N diagram data recording.
Q4: What specimens are supplied with the Fatigue Testing Machine FortiTestX 22?
The apparatus includes three cylindrical steel Ck35 specimens, brass and mild steel test bars (110 mm length, 8 mm diameter), and special shape specimens for investigating the influence of different notch curvature radii and surface finish conditions on fatigue strength.
Q5: What is the purpose of the S-N diagram experiment in the FortiTestX 22?
The S-N (stress-number) diagram experiment plots the applied bending stress amplitude against the number of cycles to fracture for multiple specimens at different load levels. This diagram defines the fatigue strength of the material and identifies the endurance limit, forming the core quantitative output of the fatigue testing machine experiment.
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