Vtech Engineering Works

PFIZER TYPE :
Suitable for tablet hardness testing, very handy and portable, records hardness quickly and directly on dial indicator. As the tablet is crushed by pressing the jaws of the instrument, the force is recorded on a dial indicator calibrated in force unit 1/5 kg. Squeeze of hand grip generates the breaking force. & Release of the hand pressure opens the jaws instant.
MONSANTO TYPE :
A fairly instrument for taking quick reading for the hardness of Tablets. It is made of brass turned parts, duly chromium plated with scale length of 66 mm, calibrated to read between 0 to 20 kg. of hardness division. The unit is enclosed in plastic case. 

The stainless steel top housing series of magnetic stirrers are most compact models. PMDC motor gives higher torque even at lower speeds and maintains speed stability despite viscosity or volume changes.  Accurate stepless speed control allows smooth variation upto to 1200rpm.  Stirring is accomplished by a small Teflon coated magnetic paddle to be placed in the container. Available
Capacities: 500ml, 1 Litre, 2 Litres, 5 Litres With Hot Plate is also available.

(a) with 3 rotary switch, 1500 watts, complete with three core
wire and plug to work on 220/230volts, AC main.

(b) specification - as above - but top cladded with St. Steel Sheet
and body of Mild Steel, fitted with sunvic energy regulator
instead of rotary switch.

(c) specification - as above - but whole body & top of the Hot plate
made of St. Steel - 304 quality as per G.M.P Model.

Laboratory Incubator is double walled with doors, having glass window. Inside chamber is made of thick anodized aluminum/St. steel sheet, except inner door which is a thick glass panel/ Acrylic. The outer body is made of thick mild steel, painted with white enamel paint, the gap between the two walls is filled with glass wool. Heating element are placed in ribs at bottom side. Adjustable air ventilator are placed near the top. Built in horizontal L shaped thermometer is also provided. The temp. is controlled by a precision thermostat from the room temp. to 80 C with a sensitivity of + 0.5 C complete with perforated shelves, two indicator lamps, thermometer etc.

Size (inside chamber)

300 x 300x 300 mm. 

350 x 350 x 350 mm. 

450 x 450 x 450 mm. 

600 x 600 x 600 mm.

600 x 600 x 900 mm.

The Friability Test Apparatus is to determine the durability of tablets, from the time of production to the time to use. A transparent plastic drum has plastic curved hinge, which carries the tablet along with it up to a predetermine height. The rotation period is determined by a timer to work on 220/230 volts. Complete with wire and plug, ready to switch on.

Single Drum Model

Double drum model

Optional accessories :-

With Digital Timer/ and Buzzer system

Outer body of Hot Air Oven is made of M.S, finished in hammer ton spray stoving white enamel paint, with superior quality glass wool insulation in a gap of 65 mm, between the two walls. Heating elements are placed in ribs at the bottom and sides, adjustable air ventilator at top, built in horizontal L shaped thermometer 0 to 250 C, supplied complete with two pilot lamps, thermostat, perforated shelves adjustable at any level, to work on 220/230 volts. A.C main.

Size (inside chamber)

300 x 300 x 300 mm 

350 x 350 x 350 mm 

450 x 450 x 450 mm 

600 x 600 x 600 mm

600 x 600 x 900 mm

Mini stirrer fitted with 1/50 HP motor 1200 R.P.M without controller, complete on adjustable stand. 

Lab stirrer with 1/20 HP motor 4000 R.P.M with speed regulator.

Digital PH Meter (portable) battery operated with combination ph electrode. digital ph meter 3 ½ digit lcd display with combination ph electrode (table model) ac/battery operated. digital ph meter with 3 ½ digit led display, only ph dislay auto temperature compensations, ph electrode & rtd probe (table model)  deluxe ph meter 3 ½ digit led display with auto temperature compensations, combination ph electrode & rtd probe (table model).

Accessories on request :

General-purpose ph combination electrode.

General purpose ph combination electrode with pvc (0-14ph) 

Gell filled combination electrode (0-14ph)

General purpose orp electrode.

Single pan electrically operated analytical balance ‘Dhona’ make, to operate on 220/230 volts, sensitivity 0.1 mg.

Suitable for finding out melting point of powders, max. temp. up to 325°C is obtained within 15 minutes. The sample is illuminated by a lamp and viewed through a magnifying lens suitable for 230 volts, single phase AC complete with wire, plug, but without thermometer and capillaries, ready to switch on.

It is carefully constructed to give thin layer, variable from 0 to 2 mm minimum thickness, complete with applicator, thin layer drawing board, drying rack of aluminum to hold 8 coated plates at a time, developing chamber, sprayer of ‘ Borosilicate’ micropipette of 1.0 ml, eight glass plates of square sizes and uniform thickness and 500 gms. Silica gel, especially suited for thin layer chromatography work. The unit is complete with all accessories.

Double walled vacuumoven chamber made of Al/stainless steel, top lid of thick aluminum sheet with
glass window and rubber gasket, vacuum gauge nozzles for suction / release valves. Thermometer pocket is at top, temp. from 50 C to 150 C accuracy + 2 C for 220 volts 50 cycles A.C main. Outer body mild steel with stoving enamel paints with glass wool insulation, complete with perforated aluminum/stainless steel shelves but without VACUUM PUMP.

Light weight muffle furnace max. tempr.1000 C and working tempr.900 C, tempr. controlled by sunvic simmer state energy regulator, outer body is made of thick mild steel sheet, with grey enamel paint. The apparatus is complete with pyrometer, thermocouple, neon light with wire & plug to work on 220/230 volts. A.C main, ready to switch on.
Muffle size
Rating
100 x 100 x 225 mm.
1.6 K.W
125 x 125 x 250 mm.
2.0 K.W
125 x 125 x 300 mm.
3.0 K.W
150 x 150 x 300 mm
3.5 K.W
“Optional Accessories: -  Digital Temp. Controller if required.” 

Outer body M.S. with stoving white paint, inside chamber of St. Steel with glass wool insulation. Top has 75 mm. holes with concentric rings, complete with thermostat, switch indicator, main switch wire and plug.
325 x 225 x 100 mm. (6 holes)
325 x 300 x 100 mm. (9 holes)
400 x 300 x 100 mm.(12 holes)
Optional accessories: - Digital Temp. Controller & outer body of St. steel if required

Specially designed to study the bulk density of powders. The density is determined by volume displacement of powders on attaining the preset stroke. The unit is complete with motor, tubes, holders, etc. wire and plug, ready to switch on.

Optional : If digital stroke controller/indicator with alarm system is desired

These  heating mantles are made of different sizes to provide uniform heating. Bigger sizes of mantles have two or three heating circuits so that upper circuit could be switched off, when small sizes flask is being heated or when liquid level is dropped.

Electric heating net is hand knitted from glass yarn to attain tempr. upto 400 C. The body of the mantle is one piece, from non-rusting aluminum upto 5 Lt. Capacity and these are lagged with special created mineral wool, provided with ON/OFF switch and pilot lamp workable on 230/220 volts AC.