Ctech Instruments Vastral, Ahmedabad, Gujarat

    Introduction: Our vertical autoclaves are widely used for the day to day sterilization procedures and in various laboratory applications.We specialize in both standard and customized models, specifically designed to meet the challenging demands of various scientists for individual and specialized research applications. Apart from that, we are also supplying our economical autoclave in India catering to variety of customers ranging from Defense Installations, Research Laboratories and Educational Institutes and various R&D laboratories of leading national and multinational companies.

    Introduction The Veebe consistometer measures the remolding ability of concrete under vibration. The test results reflect the amount of energy required to remold a quantity of concrete under given vibration conditions. The Veebe consistometer is applicable to concrete with slumps less than 2 inches.   The apparatus, consists of a metal cylindrical container mounted on a vibrating table, which produces a sinusoidal vibration, a slump cone is placed in the center of the cylinder and filled in the same manner as in the standard slump test. After the slump cone is removed, a clear plastic disk is set atop the fresh concrete. The Veebe table is started and the time for the concrete to remold from the slump cone shape to the shape of the outer cylindrical container is recorded as a measure of consistency. The sliding clear plastic disk facilitates the determination of the end of the test.   General Description And Specification Consists of: A vibrating table, size 380mm long and 260mm wide, resting upon elastic support at a height of about 305mm above the floor, complete with start/stop switch cord and plug A holder is fixed to the base into which a swivel arm is telescoped with funnel and guide sleeve. The swivel arm is also detachable form vibrating Table. A graduated rod is fixed on a swivel arm and at its end a plastic disc is screwed. The divisions of scale on the rod record the slump of the concrete in millimeters. Supplied complete with a sheet metal. Container with lifting handles which can easily be fixed to the vibrating table. A slump cone open at both ends with lifting handles and a Tamping rod of size 16mm dia and 600mm long, rounded at one end. AS PER IS : 1199   Optional Accessories CONCRETE SCOOP STOP WATCH

    Introduction: Combined short wave, long wave and white light source.Cabinet for chromatographic analysis for ultra violet fluorescence analysis under laboratory conditions Chromatograms can be viewed with 3600-4000 A deg. long wave or 2500 A deg. short wave ultra violet or with white light. Can also be used in combination. Viewing the fluorescence is easy and comfortable with the hood at the top. Switches and starters are fitted atthe top for easy operation. With Or Without Filter

  Introduction: This is a portable dark room designed for viewing paper chromatographs and suitable for other gross studies of fluorescence effects.The cabinet is fitted with 125 watts lamp for long wave uses in radiation range 3200-400 AU. One ON/OFF switch on the top of the cabinet and the pilot lamp indicates the operation of the Lamp. Works on 220 V AC.    

For Cement Flooring Tiles The tile sample is pressed under a specified load against a grinding path strewn evenly with an abrasive powder revolving at the rate of 30 + 1 r.p.m. At the end of 100 revolutions of the disc the second parallel side of the tile is subjected to wear for an equal number of revolutions of the disc. The wear of tile is measured using a thickness gauge. The Abrasion testing machine consists of a replaceable grinding path fitting on to a disc rotating its vertical axis. The rotating disc and grinding path are enclosed by a circular tray. A bracket holds the specimen. The loading is by a counter balanced lever. A funnel is provided to facilitate charging the grinding path with abrasive powder. Supplied complete with automatic preset revolution counter and one 7.5 kg weight but without abrasive powder and thickness gauge. Suitable for operation 230 V, single phase, Ac supply.

    Introduction: The machine fitted with gear box 1/2 H.P. electric Motorto work by Oil immersed gear box. Air blower is operated independently. An energy regulator is provided to control temperature from 5 deg.C above room temperature to 70 deg. C approx. Punch having switch for motor blower heat with neon indicator to work on 220 Volts. Size HP Pan HP Blower12" dia. 0.5 0.25

    Introduction: Mantle Type Waterbath Type Hot Plate Type   EIE-912,Soxhlet Extraction Heater : Mantle Type : This apparatus is suitable to heat Soxhlet flasks The heating element is attached to fiber glass yarn-knitted fabric to provide flexible support to bottom of the flask. Glass wool insulation is used below the elements in the housing which is phosphated and powder coated attractively. In the event of spillage the solvent will either evaporate or escape through the drainage hole below each element. The housing has two retort rods and a cross bar on which the extraction apparatus has a built-in regulator which controls the heaters. The heating elements have individual on/off switches and a pilot lamp to indicate working of the elements. The apparatus requires a 230 Volts AC single phase supply. Without glass parts and clamps. EIE-913, Soxhlet Extraction Heater : Water Bath Type : Double walled, inner stainless steel. The lid having 6 holes of 10 cm dia, provided with concentric rings and supplied with two straight rods and adjustable horizontal rod, electrically heated. Thermostatic control. Supplied without glass parts, clamps, boss heads.     Same as above but completely made of stainless steel.   EIE-911, Soxhlet Extraction Heater : Hot Plate Type : Hot plate dia about 41/2" mounted on a metal base. Provided with two adjustable cross rods but with out glass parts and clamps. Hot plates made of aluminum.     With ind. ON/OFF switch With ind. Energy regulator With one energy regulator and ON/OFF Switch.    

Introduction The oldest, most widely used test for determining workability. This test is used to determine the workability of fresh concrete, which would normally be undertaken at the point of delivery to ensure the concrete, is of adequate consistency for placement. The test is applicable to concrete of medium workability.     The device is a hollow cone-shaped mould. The mold is filled in three layers of each volume. Each layer is rodded with a 16mm steel rod 25 times. The mould is then lifted away and the change in the height of the concrete is measured against the mould. The slump test is a measure of the resistance of concrete to flow under it own weight.   General Descriptions & Specifications The apparatus comprise of a slump cone with handles made of mild steel sheet, a chrome plated steel tamping rod of 16 mm diameter X 600 mm long, rounded off at one end, with a scale marked on it and a steel base plate with a carrying handle.     The mould for the test specimen will be in the form of frustum of a cone having the following internal dimensions as follows   The Cone is constructed of metal of at least 1.6 mm thickness and the top and bottom are open and at right angles to the axis of the cone. The mould have a smooth internal surface and provided with suitable foot pieces to a base plate and also handles to facilitate lifting it from the moulded concrete test specimen in a vertical direction as required by the test. The base plate is provided with cleats & swivel handle.   Optional Accessories CONCRETE SCOOP.FUNNEL FOR POURING CONCRETE IN CONE STRAIGHT EDGE

Sieve Shaker - Table   Introduction (Soundless) Vibration type cast iron body. Electrically operated Fitted with FHPElectric Motor inside the Body having speed regulator to increase of discrease the vibration. The table sieve shaker having the capacity of 6 test sieves of 20cm.dai(without test sieve and time switch.) Adaptor for 30 cm dia test sieves .   Optional Extra: Digital Time switch 0-99 minutes for above Mechanical Time switch 0-60 minutes for above

Introduction This Shaker reproduces both circular and tapping motion, Produces Circular (280-320 RPM approx) and tapping (140-160 RPM approx) motion with a uniform mechanical action which ensures accurate and dependable test results. This shaker is heavy in construction and no special foundation is required. The running parts operate in oil. A 1/4 H.P. electric motor runs the machine, the machine can accommodate six test sieves + set of Lid-pan but is supplied without sieves.     Optional Extra: DIGITAL Time switch 0-99 minutes for above MECHANICAL Time switch 0-60 minutes for above

ntroduction This sieve shaker is designed to carry up to 7 sieves of 6 inch or 8 inch diameter. The 12 inch dia.sieves can be used with the help of Adaptor. A 1/4 HP. motor through a reduction gear immersed in oil drives the shaker. The sieve table dies not rotate but is inclined from the vertical axis and the direction of inclination changes progressively in clockwise direction. If the stop-pin below the table is removed. the shaker can have a rotary motion. In addition to this gyratory motion of the table, there is an upward and downward movement ensuring that each square cm of the sieve is utilized. A pair of rods and a holder is supplied. The holder can be fixed on the top of the upper most sieves, and thus the sieve set is firmly held. Suitable for operation on 230 volts, 50 cycles single phase A.C. Supply.   For 45cm diameter sieves This sieve shaker is designed to carry up to 7 sieves of 18" diameter. The shaker is driven by a 1/2 H.P.Electric Motor through a reduction gear. The sieve table does not rotate but is inclined from the vertical axis and the direction of inclination changes progressively in the clockwise direction, in addition to this gyratory motion of the table, there is and upward and downward movement at a frequency of about 270 vibration per minutes ensuring that each square inch of the sieve is utilised. The whole gear mechanism runs in an oil bath, without test sieves or time switch. Suitable for operation from 220 Volts 50 cycles A.C. supply.   Optional accessories Digital Time switch 0-99 minutes for above Mechanical Time switch 0-60 minutes for above

This is a bench type model which is portable, sturdy and convenient for bench mounting. The side to side movement to the carrier which can take upto 7 sieves of 20cm diameter is through a chain of gears operated by a hand wheel.

      Introduction (With AC / DC Motor) Useful for uniform mixing by circular motion in a horizontal plane with a circuit diameter of about 25 mm. Used extensively in tissue culture work, aeration of fermentation and other chemical mixing procedures. The driving mechanism is enclosed in a mild steel sheet cabinet beautifully painted. The motor used is induction type split phase and has a variable pitch pulley system with V belt drive, 150 to 250 oscillations approx. Optionally the shaker can be fitted with DC Motor with electronic speed regulator in place of variable pitch pulley system. The DC Motor will ensure continuous work and precise speed control. The shaking speed will be 50-250 RPM approx. The top platform have neoprene rubber discs to hold conical flask in between them. Optional Automatic Electric Timer 0-60 minute for 24"x24", 36"x36" Shakers only. Digital RPM Counter for above models. Spare Platform For Above (Interchangeable) For 12" x 12" Shaker For 18" x 18" Shaker For 24" x 24" Shaker     For 36" x 36" ShakerFor 48" x 48" Shaker     Lotus type clamps flexible duly nickle with flexible spring instead of rubber disc. Per each clamp.Top platform stainless steel instead of mild steel platform.     Circular chart recorder - Daily / Weekly type. Fluorescent tube light provided with 24 hours ON/OFF Programmabletimer for Day /Night effect. Temp.range15° to 60°C.at extra cost. Automatic Voltage Stabilizer.

WORKING SIZE (CM) (L x W x D): 40 X 28 X 10 30 X 20 X 10   OPTIONAL: Optional Digital Temp. controller with sensor.

IntroductionUsed for specific gravity and absorption of fine aggregates. The equipment comprises of a conical metal mould 1.5” dia at the top, 3.5” dia at the base and 2.7/8” in height and a metal tamping rod weighing 12 ounces and having a flat circular tamping face 1” dia.

      Introduction: (New improved model with variable system and DC motor to work on 220 volt AC.) The apparatus consists of an evaporating flask rotated by non-sparking electric motor in heating water bath. The drive unit is clamped in V shaped heavy duty stand. The introduction tube permits continuous feed of the liquids into evaporating flask and also distillation under controlled atmosphere. The evaporating flask is pear shaped to give a large surface area for evaporation, clamped to a glass duct which goes through the drive unit and produced into the condenser is fitted with B-19 joint through which introduction tube is inserted. The condenser spherical join S-35 at the bottom of the condenser to receiver flasks cap, 1 litre of corning glass With ball point socket. Complete units is fitted on 'v' shape heavy duty stand with quick jack action. Waterbath and vacuum pump at extra cost.

Introduction U.sed for rapid collection of the true representative sample from aggregate, sand and filters.   Consists of a metal box fitted with a series of chutes of equal width which discharge the material alternatively in opposite directions into separate pans. The chutes of the riffle are steep enough to allow rapid flowing of the material. Each riffle sample divider supplied with two pans and one scoop Available in following sizes: Size (mm)13202540No. of Slot14161616  

      Introduction: An analytic apparatus that employs a manometer to determine changes in the amount of gas produced or absorbed by a test sample kept at constant temperature in a flask of constant gas volume and is used especially in the study of cellular respiration and metabolism and of some enzymatic reactions (as fermentation)     Polished Stainless Steel tank, with capacity of 7 manometers a side. Digital temperature display with resolution of 0.1 deg. C. Temperature control to within +/-0.5 deg. C. Stainless Steel immersion heater. Stirrer for uniform temperature. Manometers mounted on graduated scale for reading pressure changes. Flask with center well & side flask attached to manometer. Oscillation of manometer approximately 90 rpm. Powder coated exterior, with wheels for easy mobility. Capacity 7 manometers, temperature range of 5 deg. C above ambient to 60 deg. C.

    EIE-203, TEMP. 5 ABOVE AMBIENT TO 60°C EIE-203 TEMP. RANGE 5 TO 60°C   Introduction Specifically designed to have combined advantage of a closely controlled incubation / Storage temperatures with orbital shaking necessary for many laboratory procedures. Dual display digital electronic temperature controller and a platform capacity of 16 conical flasks of 500 ml. The shaking speed to vary between 50 to 250 R.P.M. with digital speed meter. The interior of incubator will be made of S. S. with glass window. Chamber illumination by 4 nos. fluorescent tubes of 60 cm. with 7 days programmable timer.

Introduction In the process of compaction, efforts are only directed to reduce voids in the compacted concrete. The Vibrators produce vibrations which when transmitted to plastic concrete make it to flow and affect compaction. The air bubbles are forced out of concrete due to vibrations.   The Needle Vibrator, also known as immersion or poker vibrator have a power unit and long flexible tube at the end of which a vibrating head is attached. Wherever compaction is to be done, the vibrating head is inserted in the concrete.   General Description And Specification The Laboratory needle vibrator having 350mm long X 25mm dia Needle is used in vibrating concrete test cylinders and beams in the field or laboratory. It is also widely used in making laboratory specimens, in making concrete products, in experimental works, and in small scale construction project. It has 1 meter long flexible shaft and is powered by 1 HP single Phase Electric motor.   The Needle vibrator for compaction of mass concrete has 40 or 60mm dia needle with 6 meter long flexible shaft and powered by 3 HP Electric motor for operation on 440 Volts, 3 phase, 50 cycles, A.C. Supply. Optionally, the Vibrator can also be fitted with Petrol/kerosene or Diesel Engine for field use.   Optional Accessories Spare Needle with shaft

      Introduction: For uniform stirring up to six samples simultaneously. With variable speed 20 to 100 RPM approx. DC electric motor with electronic speed regulator. Strong M. S. Housing, stainless steel stirring paddles, arrangement to adjust paddle height, beakers up to 2000 ml. capacity can be used with ON/OFF switch and built in fluorescent tube. Supplied without glass beaker.   CAPACITY 1 Ltr. / 2 Ltrs: For two stirrers. For four stirrers. For six stirrers. Aluminium Tray : 16 SWG 16"× 32"× 1 1/4" Digital Timer for Time Setting   OPTIONAL FITTING FOR ABOVE: Timer 0-60 minutes, extra. Speed revolution counter extra to cost. (Mechanical) Microprocessor based Digital Speed Meter. Attachment for feeding dose to all the stirring unit simultaneously. For 2 stirrer jar test. For 4 stirrer jar test. For 6 stirrer jar test. High speed jar test apparatus from 10 to 200 RPM. Complete body stainless steel for 2 stirrer Complete body stainless steel for 4 stirrer Complete body stainless steel for 6 stirrer

    Introduction Complete aluminium die cast model. Attractively painted. Aluminium block accepts 3 capillaries and a mercury thermometer, Max. temperature about 300 deg. C. Fitted with energy regulator. The samples are illuminated by and viewed through a magnifying lens.

        EIE-1603, Without Hot Plate EIE-1603, With Hot Plate   Introduction Stainless steel body, S. S./epoxy coated top plate, variable speed control, with one Teflon coated magnetic stirring paddle.     Maximum capacity | W X D X H | paddleStirring speed Liters | mm | (dia X length) mm     1800 1 140x155x100 9 x 251800 2 160x165x120 9 x 351800 5 190x190x170 13 x 501200 10 250x250x170 13 x 50    

Introduction The machine is used for testing crushed slag, crushed and uncrushed gravel for resistance to abrasion. The aim of the test is to find the percentage wear due to the relative rubbing action between the aggregates and steel balls as abrasive charge. The oven-dried arrangements are weighted and rotated along with abrasive charge in the machine for the 500 or 1000 revolutions and percentage of wear so found out its reported as Los angeles abrasion value.   General Description & Specification: Consists of a hollow steel cylinder, closed at both ends, having an inside diameter of 700mm and inside length of 500mm. The cylinder mounted on a sturdy frame on ball bearings. The opening is closed dust tight with a removable bolted cover in place. A detachable shelf which extends through the drum catches the abrasive charge and does not allow it to fall on the cover. The drum is rotated at a speed of 30-33 RPM by an electric motor through a heavy duty reduction gear. Fitted with revolution counter and push button starter. Supplied complete with a tray for collection of the material. Abrasive charge consists of set of 12 Nos. cast iron spheres or steel spheres (hardened steel balls) approximately 48mm diameter each weigh between 390-445 gram. Complete as above.   Optional Accessories: The following accessories are not part of the standard supply and are supplied at an extra cost.   Laboratory Oven. Test Sieve 1.7mm Electronic Balance of 15 kg x 1 gm Spare Abrasive charge.