Popular Science Appratus Workshops Private Limited

• Ball and Hoop Apparatus shows the use of electromechanical servo systems for position and velocity control. 
• The apparatus has a steel ball that rolls inside a hoop. 
• The hoop is free to rotate, but controlled by a servomotor. 
• Transducers give outputs of the hoop and ball positions. 
• When the hoop is under angular position control, the ball moves like a cylindrical pendulum. 
• This allows students to use it as a model for the study of liquid slop dynamics. 
• It also works as a model to show liquid slop problems, for example: aircraft missile fuel storage, fuel tankers and industrial pumping systems. 

• A metal tamping rod weighting 12 ounces and having a flat circular tamping faces 1 inch in dia meter.
• The equipment comprises of a conical metal mould 1.5 inch dia at to top.
• 3.5 inch dia at base and 27/8 inch in height.

• The pore structure in turn depends on other factors such as the mix design, degree of hydration, curing conditions, use of supplementary cementitious materials, and construction practices.
• The rapid chloride-ion permeability test (rcpt) is designed to assess the resistance of concrete to the penetration of chloride ions, an indicator of its permeability.
• Therefore, wherever there is a potential risk of chloride induced corrosion, the concrete should be evaluated for chloride permeability.
• Complete with tools kit.

• The instrument employs a friction free, accurate, double lever system, the load being applied by means of sliding weight on the top lever.
• After fixing the briquette in the jaws, the machine is switched on.
• The capacity of the units is 900 kgs.
• By means of a marker provided on the sliding weight to its zero position.
• The sliding weight slides over the calibrated lever thus applying tension to the specimen.
• A micro switch fitted instantly stop the machine on failure of the briquette and on failure the tensile load is accurately 0.5kg.
• Operation on 230 V, 50 cycles, Single Phase, A.C. supply.
• Supplied complete with one brass briquette mould and one base plate.

• Used for determining the expansion of cement.
• The mould consists of a spring tensioned split cylinder 30 mm internal diameter, 30 mm high with two indicator stems which measure 165 mm from the points of thje centre line of the cylinder and O ring.
• Two or three moulds are required for each test.
• The kit includes all accessories to perform the test and to verify the conformity of the moulds.
• Consisting of:
• Le Chatelier moulds
• Glass plates, 50 mm sq.

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• Capacity: 400 liters approx.
• Power rating: total 310 W
• Internal temperature range min/max: 18/30C
• Temperature accuracy: 1C
• Ambient temperature min/max: 18/28C
• Internal humidity range: 95% 5% RH
• Shelf plan dimensions: 310mm x 530mm, (w x d)
• Total internal height of the cabinet: approx 530mm
• Stainless steel guides allowing shelf positioning every 70mm
• Max weight on the shelf: 40kg
• Number of shelves included: 1 per each cell (4 in total)
• Overall dimensions (l x w x h): 2400 x 700 x 860 mm
• Weight approx.: 210 kg
• Max number of shelves per each cell: 5 (1 included) with 70mm spacing between them.
• Inlet water temperature min/max: 5/36C. The cabinet has to be connected to the water mains.
• Temperature control: Electronic system with digital display and keyboard to set the curing temperature.
• Cooling system: refrigeration unit with hermetic piston compressor, loaded with HFC ecological refrigerant fluid.
• Humidity saturation: obtained by a water evaporation system (no water nebuliser) consisting of a water collecting bath, immersed re-circulating pump and hydraulic circuit.

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• Bits capacity: 25mm Dia 150mm Dia
• Compact size with light weight as well as safety in operation.
• High-strength gear to keep the drill working long hours constantly.
• Excellent speed, smooth and stability during drilling.
• The drills are equipped with a friction clutch as well as over load current protection for protecting motor.
• Out setting water swivel seal facilitate making replacement when the seal worn out.

• This is used for compacting concrete into cube moulds.
• This rod is made of steel it is 16 mm dia.
• 600 mm in length and rounded at both ends.

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• This is used for compacting concrete into cube moulds.
• This rod is made of steel bar it is 25 mm square x 380 mm long with handle.

• A compact instrumentmicroprocessor includes a 6 lateral touch screen display, intuitive and easy to use, which shows the penetration/time curve and can display and average up to 6 tests.
• The instrument reaches the test start point automatically, and it is supplied with an integrated led lamp.

his Gyratory Sieve Shaker is designed for efficient and uniform sieve analysis in laboratories and quality control units. It is capable of carrying up to 8 numbers of test sieves of 8-inch diameter. The unit is powered by a heavy-duty electric motor, ensuring smooth, reliable, and continuous operation.

The sieve table does not rotate; instead, it is inclined from the vertical axis, creating a controlled gyratory motion that ensures effective particle separation across the entire sieve surface. The speed can be easily adjusted using a variable speed regulator, allowing the operator to set the required operating speed based on the sample and test conditions.

The shaker operates on 220 volts AC, 50 Hz power supply and is supplied without test sieves, making it compatible with standard 8-inch laboratory sieves. Its robust construction and simple operation make it suitable for routine laboratory testing and long-term use.