Wire rope equalization system forces synchronous movement of two carriages and effectively prevents vehicle form tilting.
Double hydraulic cylinder and high strength chain drive makes stable and smooth lifting and lowering.
Door rubber pad protects car door from being damaged in collision.
More lifting pads with different height meets the requirements for light lorries and SUV.
24V low voltage control box ensures operator's safety.
24V cylinder travel limit switch effectively protects cylinder and extends its lifespan.
The Flexural Machine For Paving Slabs And Tiles machine consists of: steel frame, one upper bearer and two lower adjustable bearers, mechanical hand-operated screw jack and a 10 KN capacity proving ring to measure the applied load.
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Double Auto Mould Auto Mould
mm/inch mm/inch mm/inch
Work table size: 455x150 /18x6 455x150/18x 6 455x150/18x6
Up/down movement of table: 100/4 63/2 1/2 100/4
Longitudinal movement of table: 50/2 25/1 50/2
Table tilt-degree 15 - 15
Feeding speed (feet per minute): 24 24 24
Moulding block speed (rpm): 4000 4000 4000
Max.moulding block width: 114/4 1/2 75/3 114/4 1/2
Moulding block diameter: 95/3 3/4 95/3 3/4 95/3 3/4
Power required hp/rpm: 3/1440 - 3/1440
These devices are connected through a network scanner module rather than the input and output modules of traditional networks. Field-device networks, such as Device Net, provide a wider range of control and can perform higher functions than traditional networks. PLC Device Net Learning System adds to Troubleshooting Learning Systems to teach operation, installation, configuration and troubleshooting of the Device Net field-device network. The PLC Device Net Learning System includes Device Net I/O application station, Device Net scanner module, software, cable assembly, jumper plugs, supplemental disk, student curriculum for both theory and lab, and teacher's assessment guide. Device Net is a high-speed, deterministic, field device network for connecting devices such as limit switches, photoelectric sensors, solenoid valves, motor starters, variable speed drives and operator interfaces to a controller. Manufacturing technicians will need to understand these networks and their operation in order to install and troubleshoot the networks as well as the network's interconnections to PLC's.
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A near-surface geothermal plant uses the thermal energy stored below the earths surface. Using a two-well system, for example, thermal energy is extracted from the near-surface groundwater for heating purposes. The scope of geothermal energy is the study and use of the heat and the temperature distribution in the ground. It demonstrates the operation of such a two-well system.
Learning objectives/experiments:
Hydraulic properties of the ground
Determination of the usable heat capacity
Fundamentals of geothermal use
Fundamentals and energy balance of a simulated heat pump
Operating behaviour of a two-well system.
This trainer has amodular structure and it consists of panels installed on a verticalframe. It is supplied with a theoretical and practical manual. Industrial type components are educationally adapted by using a modular panel system to permit the step by step assembling from the simplest circuit to the most complex system. This laboratory is designed for the study of the Level Control Application to allow the student a practical training, based on theperformance of guided experiments. The modularity of this system can give the students a direct and immediate approach to the topics, offering the opportunity to study various subjects, performing several experiments as following:
Pumps features:
Measurement systems features
Level control with adjuster P
Level control with adjuster PI
Level process features
Level control with adjuster PID
Level control with a 2 position controller.
This Flow Control Apparatus is designed to demonstrate automatic control of the ow of water delivered by a centrifugal pump. The present invention relates to a flow control apparatus for a positive-displacement pump such as rotary-vane pump, plunger pump, gear pump, and more particularly to the flow control apparatus for keeping a flow rate of fluid discharged from the pump at the high rotational speed which is lower than a flow rate of fluid discharged from the pump at the low rotational speed. The unit enables students to investigate the effects of changing the parameters of the control algorithm (proportional band, integral action and derivative time) on the control capability of the system.
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The set is supplied in plastics box. Over 20 perforated bars of different lengths and joints are used for assembly to form different linkages. The bar can accommodate a pen to trace the movement of the linkages on paper. Bar Linkages Set is part of mechanical Engineering Test Series which provides sets for various experiments on Basic Panel (separately supplied) to study or demonstrate specific engineering principles.
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The system is formed by a frame attached to a rigid base and loads can be applied by mass hangers and a range of masses or weights. The horizontal and vertical deflections of the frame can be measured by means of dial gauges.
The portal frame unit has been designed to determine the deflection at the load point for a rectangular portal frame subjected to horizontal and vertical loads.
The set includes some of the most important pneumatic components, used in industrial control applications. Special explanatory technical plates show each sectioned component explaining its operation with notes, drawings and technical data. The use of contrasting colors according to a pre-established code simplifies the informative process as well as the learning one. In sectionizing each component the best care has been taken to evidence all the interesting constructive detailed features.
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Strain gauge are fixed at different locations of the beam specimen. Each gauge is wired to form a full bridge with temperature compensation and zero adjustment. Strain And Stress Of Material is to be used with Universal Base Frame. A beam is simply supported at both ends. Load is applied by a load hanger and weights. The Strain And Stress Of Material apparatus demonstrates the use of electrical resistance strain gauge in measuring strain of material under stress. Strain are measured by a strain indicator.
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Experiments:
Using a simple pendulum to find the acceleration due to gravity.
Centre of gravity and period of a compound pendulum.
Using a Katers pendulum to find the acceleration due to gravity
Cord length and period of a simple pendulum.
Mass and period of a simple pendulum.
How an adjustable mass affects the period of a compound pendulum.
Operating Conditions
Operating temperature range: +5C to +40C
Operating relative humidity range: 80% at temperatures < 31C decreasing linearly to 50% at 40C
Operating environment: Laboratory environment
Storage temperature range: 25C to +55C (when packed for transport).
Features:
Automatically retrieves test data and inspects the stress relaxation performance of the specimen. (e.g. stress relaxation rate, relaxed stress, relaxation rate, etc.)
Splitting the sampling stage into four sub-stages and applies different sampling cycles in consideration of the logarithm characteristic of time, improving the reliability of data greatly.
Real-time drawing of curves of remaining load with time, or temperature with time.
Support for 100-hour tests. Test time can be assigned at will. E.g. 24-hour test.
Closed loop control of channels such as load, displacement, deformation, etc. Smooth switching in between.
Algorithm to predict specimens stress relaxation performance after 1000 hours (or any specified value in hours), with the option of single or double logarithm. Capable of predicting with standard specimen data or real-time collected data (Suggested). Integrated with an extensive specimen library to improve the precision and reliability of testing results.
Laminar Flow Apparatus is to be used with Hydraulics Bench. Two horizontal plates are placed closely together with seals on side edges. The top plate is transparent and has a transparent grid to help observe stream line patterns. Laminar Flow Apparatus equipment is designed to study laminar flow in two dimensions. Stream lines are produced by regulating a flow of dye from a reservoir through a series of holes at the upstream end. The set rests on adjustable screw supports with bulls eye level. This plate is removable to insert or remove models. The bottom plate has small holes which are connected by valves to a water supply or source and a drain or sink. Water is admitted through a diffuser at one end and drained at the other end.
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The open and flexible design is ideal for lecturers to create theirown experiments, as well as student project work. To allow realisticinvestigations, the characteristics of the prime mover and generator aresimilar to industrial turbine and generator sets. The Salient Pole Generator explores the principles andcharacteristics of salient pole generators. It contains everything needed forsalient pole generator experiments including resistive capacitive and inductiveload banks. Manual or automatic voltage regulation excitation controls theoutput voltage of the generator. When the generator is in overrun mode,resistors dissipate the reverse power. The prime mover and generatorset is two coupled machines mounted on a common bedplate in the base of theconsole. The user maysynchronise the generator output to the grid supply using a synchroscope. Theymay also use the set of three coloured lamps. The control and protectioncircuits work when the generator is unsynchronised and synchronised to themains electrical supply. A vector drive controls the speed of theprime mover and allows investigations into load flow in positive and negative directions. An integral shaft encoder allows load angle analysis. When the generator is synchronised, the user canoperate a variable quadrature droop for reactive power regulation.
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The Kaplan Turbine Study Unit is fitted with a special VISIFLOW version turbine featuring a number of transparent parts which make it possibleto see very clearly the hydrodynamic phenomena taking place inside it. The unit is supplied with manuals which describe all parts of the trainer, the installation and utilisation procedures, as well as many exercises with the relative results. Kaplan Turbine Study Unit has been designed for a complete range of tests on Kaplan type hydraulic turbines.The unit is perfectly self-sufficient, takes up little space and can be easily moved. The system is equipped with two regulation systems: the first allows to adjust the incidence of guide blades during turbine operation by means of an opening control hand wheel, the second allows to adjust the inclination of the impeller blades, by means of an external hand wheel too.
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The Centrifugal Fan Demonstration Unit has been developed for the study of the characteristics of a centrifugal fan. The unit is equipped with 2 different types of impellers; (forward and backward blades), which can be easily interchanged. The direction of the rotation can be changed using the 3-position command control. Vertical and inclined gauges allow a correct reading of the pressure. The inverter allows the speed to be varied, while observing the electrical power through the power meter. A Pitot tube allows the measurement of the air velocity at any point of the tube, and the measurements can be obtained from the digital display which is provided.
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The Oxygen Analyser measures oxygen concentrations from percentage levels to a fraction of parts per million (ppm) in clean gases. The unique cell and heater design gives very fast warm-up times, rapid response, and long sensor life. Packaged on a 19 rack mounting enclosure, it uses a oxygen sensor to provide accurate measurement with minimal interference from other gases.
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Cross Flow Turbine Test Set is designed for studying the Cross Flow turbine characteristics under various flow rates and heads. The adjustable nozzle direct a water jet tangentially to the runner. Power output can be measured by either dynamometer or generator. The unit is on wheels. The unit consists of a storage tank, a pump, a turbine, a dynamometer, a generator, and measuring instruments.
Experiments:
Power output vs speed for various heads and flow rates.
Efficiency vs speed for a given head and flow rate.
Racing characteristics.
Torque vs speed at various heads and flow rates.
Overall turbine-generator efficiency.
The basic control task is to control the vertical position of the freely levitating ball in the magnetic field of the coil. The Magnetic Levitation Apparatus is a non-linear, dynamic system with one input and one output. The Magnetic Levitation Apparatus shows control problems with non-linear, unstable systems. The apparatus consists of a steel ball held in a magnetic field produced by a current-carrying coil. Any imbalance and the ball will move away from the set-point position. A sensor measures the position of the ball. At equilibrium, the downward force on the ball due to gravity is balanced by the upward magnetic force of attraction of the ball towards the coil. A power amplifier with overheat protection drives the coil.
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