Thin Wall Cylinder | FortiTestX - 29
Product Overview
The Thin Wall Cylinder FortiTestX-29 is a benchtop pressure vessel testing unit for engineering laboratories investigating stress and strain in thin-walled cylinders under internal pressure. This thin wall cylinder features an aluminium cylinder (400 mm length, 84 mm outer diameter, 2 mm wall thickness) with a maximum operating pressure of 3 N/mm² (30 bar), generated by a hydraulic hand pump. Five half-bridge strain gauges at 0°, 30°, 45°, 60°, and 90° to the cylinder axis measure hoop and longitudinal strains directly via a 10 V amplifier. The unit switches between open-ended pipe and closed boiler tank configurations for comparative stress state analysis, with optional Windows-based Software FX-29 supporting data logging and Mohr's Circle visualisation.
[email protected]
Technical Specifications
Thin Wall Cylinder FortiTestX-29, Technical Specifications
| Parameter | Detail |
|---|---|
| Model Reference | FortiTestX-29 |
| Category | Strength of Materials and Structures |
| Cylinder Material | Aluminium |
| Cylinder Length | 400 mm |
| Outer Diameter | 84 mm |
| Inner Diameter | 80 mm |
| Wall Thickness | 2 mm |
| Maximum Internal Pressure | 3 N/mm² (30 bar) |
| Pressure Gauge Range | 0 to 30 bar |
| Pressure Generation | Hydraulic hand pump with factory-preset pressure release valve |
| Hydraulic System | Hermetically sealed, maintenance-free, oil-filled |
| Piston Control | Threaded spindle bolt, hand wheel operated |
| Vessel Configuration | Switchable: open-ended (pipe) or closed-ended (boiler tank) |
| Strain Gauge Quantity | 5 |
| Strain Gauge Configuration | Half-bridges |
| Strain Gauge Angles to Vessel Axis | 0°, 30°, 45°, 60°, 90° |
| Gauge Factor | 2.00 +/- 1% |
| Amplifier Supply Voltage | 10 V |
| Optional Software | Software FX-29 (Windows-based) |
Technical Data
Aluminium Cylinder
| Parameter | Value |
|---|---|
| Length | 400 mm |
| Outer Diameter | 84 mm |
| Inner Diameter | 80 mm |
| Wall Thickness | 2 mm |
| Maximum Internal Pressure | 3 N/mm² (30 bar) |
Strain Gauge System
| Parameter | Value |
|---|---|
| Number of Strain Gauges | 5 |
| Configuration | Half-bridges |
| Angles to Vessel Axis | 0°, 30°, 45°, 60°, 90° |
| Gauge Factor | 2.00 +/- 1% |
| Amplifier Supply Voltage | 10 V |
| Measurement Positions | Hoop and longitudinal stress and strain positions |
Pressure System
| Parameter | Value |
|---|---|
| Pressure Generation | Hydraulic hand pump |
| Pressure Release Valve | Factory-preset |
| Pressure Gauge Range | 0 to 30 bar |
| Hydraulic Fluid | Oil |
| System Type | Hermetically sealed, maintenance-free |
Key Features
Key Features
- Cylinder Dimensions: aluminium, 400 mm length, 84 mm outer diameter, 80 mm inner diameter, 2 mm wall thickness
- Maximum Internal Pressure: 3 N/mm² (30 bar), generated by hydraulic hand pump
- Dual Vessel Configuration: this thin wall cylinder switches between open-ended pipe and closed-ended boiler tank conditions
- Piston Control: moveable piston operated via threaded spindle and hand wheel for precise pressure sealing
- Strain Gauge Layout: 5 half-bridge gauges at 0°, 30°, 45°, 60°, and 90° to the cylinder axis
- Gauge Factor: 2.00 +/- 1%
- Amplifier Supply Voltage: 10 V, with direct digital strain readout
- Measurement Positions: hoop and longitudinal stress and strain positions on cylinder surface
- Pressure Indication: pressure gauge, 0 to 30 bar range, easy-read display
- Hydraulic System: hermetically sealed, oil-filled, maintenance-free
- Optional Software: Software FX-29, Windows-based, for data logging, graphical strain conversion, and Mohr's Circle analysis
Experiments
- Measurement of strain using strain gauges
- Application of Mohr's Circle for stress and strain analysis, determination of the principal strains
- Determination of Poisson's ratio
- Investigation of correlations between strain, pressure, and stress in the plane biaxial stress state
- Determination of principal stresses: axial and circumferential stresses in magnitude and direction on an open vessel (pipe)
- Determination of principal stresses: axial and circumferential stresses in magnitude and direction on a closed vessel (boiler tank)
- Comparison of open and closed vessel stress states
Construction and Design
The Thin Wall Cylinder FortiTestX-29 is built around an aluminium cylinder measuring 400 mm in length, 84 mm outer diameter, 80 mm inner diameter, and 2 mm wall thickness. One end of this thin wall cylinder is closed; the other is sealed by a moveable piston actuated through a threaded spindle and hand wheel. This configuration allows the unit to replicate either the uniaxial stress state of an open pipe or the biaxial stress state of a sealed pressure vessel. The cylinder interior is filled with oil, and internal pressure is generated by a hydraulic hand pump fitted with a factory-preset pressure release valve. A pressure gauge covering 0 to 30 bar displays the internal pressure. Five strain gauges bonded to the outer cylinder surface in half-bridge configuration are positioned at 0°, 30°, 45°, 60°, and 90° to the cylinder axis, covering both hoop and longitudinal measurement positions. The gauge factor is 2.00 +/- 1%, with a 10 V amplifier supply voltage. The hydraulic system is hermetically sealed and maintenance-free. Optional Software FX-29 interfaces with the amplifier via a Windows-based environment for data logging and graphical results evaluation including Mohr's Circle.
Software
Software FX-29 (Optional): Windows-based software for data logging, graphical strain conversion, and Mohr's Circle visualisation for principal strain and stress determination. Compatible with any Windows operating system.
Scope of Delivery
- 1 experimental unit
- 1 instruction manual
Standards & Compliance
- Manufactured under ISO 9001:2015 Quality Management System
- CE Marking - European Conformity where applicable
- Supplied with calibration certificate, operation manual, and experiment guide
- 12-month manufacturer's warranty (parts & labour from installation)
Ordering & Delivery
- Incoterms: CIF to destination seaport, FOB Mundra/Nhava Sheva, or Ex-Works Ambala
- Lead time: 3–5 weeks production + sea transit to destination
- Payment: LC (Letter of Credit) or T/T bank transfer against proforma invoice
- Documentation: commercial invoice, packing list, bill of lading, certificate of origin, insurance certificate
Frequently Asked Questions
Q1: What is the maximum internal pressure the Thin Wall Cylinder FortiTestX-29 can generate?
The maximum internal pressure is 3 N/mm² (30 bar), generated by the hydraulic hand pump with a factory-preset pressure release valve.
Q2: How does this thin wall cylinder switch between open-ended and closed-ended configurations?
A moveable piston controlled by a threaded spindle and hand wheel seals or opens one end of the cylinder, switching between the uniaxial stress state of an open pipe and the biaxial stress state of a closed vessel.
Q3: At what angles are the strain gauges mounted on the cylinder surface?
Five strain gauges in half-bridge configuration are bonded at 0°, 30°, 45°, 60°, and 90° to the cylinder axis, covering hoop and longitudinal stress and strain positions.
Q4: Is Mohr's Circle analysis supported by this apparatus?
Yes. Optional Software FX-29 provides graphical Mohr's Circle analysis for identifying principal strains and computing principal stresses from measured strain data.
Q5: Does the hydraulic system require maintenance?
No. The hydraulic system is hermetically sealed and maintenance-free.