Science teaching Kit packed in a metal box.
The primary science Kit consists of 32 items including instruction manuals and metal box. It is mainly for teacher’s demonstration also can be used for student activities. Primary science teaching aids Kit is designed for schools grade 1-6. Some consumables materials, such as batteries, iron nails, red ink, etc. are not included in the Kit and those can be easily obtained locally.
The Scissor Lift equipment is used for lifting the automobile which is used together with wheel Aligner.
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Scissors Mechanical 100
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Scissors; all purpose, sharp/blunt blades of stainless steel, riveted with a screw in stainless steel or rust proof metal securing the two blades.
Total length of the scissors: 180mm.
The handle is of sturdy plastic which enables a good grip, sized for adult use.
Material: Martensitic steel (quenched, magnetic steel).
Martensitic steel composition: 0.40 % carbon; 14 % chromium.
Curved, with one pointed and one blunt end blade.
Instrument that cuts by shearing: surgical scissors.
Reusable.
Length: 14 cm.
Material: Martensitic steel (quenched, magnetic steel).
Martensitic steel composition: 0.40 % carbon, 14 % chromium.
Instrument that cuts by shearing: surgical scissors.
Straight, with one pointed and one blunt end blade.
Length: 14 cm.
Reusable.
For cutting the perineal skin and tissue to facilitate the passage of the foetal head.
Material: Martensitic steel (quenched, magnetic steel).
Instrument that cuts by shearing: surgical scissors.
Curved, with blunt end blades.
Martensitic steel composition: 0.40 % carbon; 14 % chromium.
Reusable.
Length: 20 cm.
Surgical dissecting scissors used for cutting tissue, threads and dressings.
Instrument that cuts by shearing: operating, dissecting scissors.
Material: Martensitic steel (quenched, magnetic steel).
Martensitic steel composition: 0.15-0.40 % carbon; 13-14 % chromium.
Reusable.
Curved, with blunt end blades.
Length: 14 cm.
Surgical dissecting scissors used for cutting tissue, threads and dressings.
Material: Martensitic steel (quenched, magnetic steel).
Martensitic steel composition: 0.15-0.40 % carbon; 13-14 % chromium.
Instrument that cuts by shearing: operating, dissecting scissors.
Curved, with blunt end blades.
Length: 17 cm.
Reusable.
Surgical dissecting scissors used for cutting tissue, threads and dressings.
Material: Martensitic steel (quenched, magnetic steel).
Martensitic steel composition: 0.15-0.40 % carbon; 13-14 % chromium.
Instrument that cuts by shearing: operating, dissecting scissors.
Curved, with blunt end blades.
Length: 23 cm.
Reusable.
Material: Martensitic steel (quenched, magnetic steel).
Martensitic steel composition: 0.15-0.40 % carbon, 13-14 % chromium.
Surgical scissors used for cutting or dissecting delicate tissue.
Instrument that cuts by shearing: surgical scissors Metzenbaum/Nelson.
Length: 18 cm.
Thin, curved, with blunt end blades.
Reusable.
Surgical scissors used for cutting or dissecting delicate tissue.
Material: Martensitic steel (quenched, magnetic steel).
Martensitic steel composition: 0.16-0.40 % carbon, 14 % chromium.
Thin, curved, with blunt end blades.
Length: 23 cm.
Reusable.
Instrument that cuts by shearing: surgical scissors Metzenbaum/Nelson.
Material: Martensitic steel (quenched, magnetic steel).
Surgical scissors used for cutting or dissecting delicate tissue.
Instrument that cuts by shearing: surgical scissors.
Martensitic steel composition: 0.15-0.40 % carbon; 13-14 % chromium.
Reusable.
Thin, curved, with blunt end blades.
Length: 14 cm.
For removal of retained products of conception from inside the uterus during gynaecological procedures.
Material: Martensitic steel (quenched, magnetic steel).
Martensitic steel composition: 0.16-0.40 % carbon; 14 % chromium.
Shank type: Rigid.
Blade shape: Oval form of a spoon.
Handle: Austenitic steel
Blade edge type: Sharp
Length: Shaft 25 cm.
Width: Spoon 12 mm.
Reusable.
It is used for pupils to learn concept of fraction in maths, consists of plastic printed in 1-12 equal division.
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The main metallic elements are made of anodized aluminum.
The unit is a bench top-unit with an anodized aluminum profile structure, and painted steel panel.
his unit is composed of:
A piston with a millimeter scale to measure the linear motion.
A vertical pivot links the rotary element (crank) and the piston.
A rotary element (crank) with a graduated disc to read the angle.
The SCR Speed Control Learning System features heavy-duty components like an SCR speed control unit, DC shunt wound motor, and fuse block to give learners real-world practice on SCR speed control skills such as connecting and operating a motor with SCR half-wave speed control, measuring the performance of SCR half-wave speed control, and troubleshooting an SCR speed control circuit. SCR Speed Control Learning System adds to the Electronic Motor Control Learning System to teach variable speed motor control of DC electric motors using Silicon Controlled Rectifier (SCR)-based circuits. These hands-on skills are carefully interwoven with world-class SCR speed control curriculum so that learners understand both the theoretical and practical knowledge that they'll need to be successful. SCRs convert AC voltage into a DC voltage in order to provide efficient variable speed control of DC motors and are widely used within industrial applications such as cranes and machine tool spindles.
Features:
Features heavy-duty components like an SCR speed control unit, DC shunt wound motor, and fuse block
Teaches variable speed motor control of DC electric motors using Silicon Controlled Rectifier (SCR)-based circuits
Skills include connecting and operating a DC shunt wound motor with both SCR half-wave and full-wave speed control and measure their performances.
The power circuit is protected by a thermal magnetic breaker and the control circuit is protected by diodes. Connections can be made between the three-phase power supply and other components in the circuit through 4mm standard color-coded safety sockets using banana plug jumper leads. The SCR Direct Current Motor Speed Controller allows students to study the operation of a silicon-controlled rectifier used in motor speed control experiments. Specifications and/or diagrams are silk-screened on the back of a clear-plastic front panel for ease of identification. Included in the Rotating Machines Trainer (50016) for 1/3 hp - 250 W. Requires a 120V 60Hz circuit. The trainer is protected by a either a diode or thermal-magnetic circuit breaker.
Educational Advantages:
Switch and start indicator light
Current limit adjustment for torque control at full load
Bridge assembly with built-in freewheeling diode
Speed control adjustment
Plug-in horsepower resistor
Design with superior line and load voltage regulation
Minimum/maximum speed adjustment
Transient voltage protection and AC fuse protection
Acceleration trim pot adjustment
Included in the basic Rotating Machines Trainer (50016) for 1/3 hp - 250 W.
Theoretical topics:
Thyristor circuit fundamentals
Thyristor component familiarization
SCR half wave rectifier
The four triggering modes
Half wave and full Âwave phase control
SCR control of a half wave rectifier
Test a Silicon Controlled Rectifier
SCR control of a full wave rectifier
UJT characteristics
UJT half wave and full wave phase control
Bidirectional conduction
SCR DC operation
Gate trigger voltage and holding current.
