Test Sieves are used for sieving of aggregate, sand soil and cement etc. These sieves are manufactured as per various standards like ISS, BSS, ASTM, DIN etc. Sieves are made of Brass frame and G.I. frame of dia. 200mm, 300mm & 450mm. Normally Brass Sieves are manufactured in 200 cm dia and frame is spun brass, jointless. The Sieve cloth used is standard SS or phospher bronze wire mesh.Lid and Receiver
made of brass for 20cm or 8” dia sieves.
To make process of sieving simpler and quicker, Rotap Sieve Shaker is useful this produces circular shaking of the sieves. At the same time the sieves are tapped. The mechanism for inparting circular action and tapping is oil immersed in a tank and in motorized. The Shake0r can accommodate upto 7 Nos. Sieves of dia 150mm or 200mm. Suitable operation on 230 volts A.C. Single phase
Conforming to specifications and tolerance in accordance to I.S.2720 Part XVI. For determination laboratory C.B.R.
Consists of ::
Load frame hand operated capacity 50 KN (5000 kgs.) with high and low rate of travel of the lead screw
Mould 150mm internal diam, 175mm high with perforated base plate, collar, tie rods and wing nut.
Penetration piston, face diam 50mm with adjustable bracket for dial gauge.
Circular metal spacer disc, 148mm diam x 47.7mm high with detachable handle.
Annular metal weight 2.5 kg, 147mm dia with 53mm dia hole
Slotted metal weight 2.5 kg, 147mm dia with 53mm slot
Perforated plate, 148mm dia with adjustable stem and lock nut brass
Metal tripod for dial gauge.
Cutting collar for obtaining sample from field.
Rammer 2.6 kg x 310mm controlled drop through guide.
Rammer 4.89 kg x 450mm controlled drop through guide.
Proving ring 1000 kgs equipped with dial gauge least count 0.002mm
Strain dial gauge least count 0.01mm x 25mm travel. Complete outfit as above
Pumping Unit : The motorized pumping unit which is housed in an elegant console is of double plunger type and is driven by 3 phase 440 volts 50 cycles electric motor. The pumping unit is separate unit connected to the jack by means of a steel connecting tube. A junction box is suitably fixed to connect the motor to the mains through a push button starter. The pumping unit is fitted with gauges. A maximum pointer is provided to facilitate taking of the reading after failure of the specimen. The pressure gauges are fixed on the pumping unit at an angle for easy readability.The machine is fitted with a hand wheel control which enables the rate of application of load to be varied. The machine is also equipped with facilities for hand pumping in case of power failure. The electric pumping unit is fixed with a micro-switch off the motor automatically as the load on the machine approaches the rated capacity. Relays are also incorporated in the pumping unit so that in the case of break-down of power supply, the motor will stop and would not-re-start unless starting switch is operated.
Laboratory Mixer for mixing of Bitumen for making different types of test specimens in the laboratory. The apparatus comprises the following: (I) A motor driven mixer which simultaneously imparts two motions to the mixing paddle i.e. revolving and planetary. A two speed gearbox is incorporated in the drive which makes the paddle revolve at approximately 140 and 285rpm with corresponding planetary motion of 62 and 125rpm respectively. (II) A stainless steel mixing paddle of the specified shape and dimension witch can be attached or removed easily. (III) A stainless steel mixing bowl of about 6Ltr capacity fitted with Heating Jacket for Heating of Sample at the Bottom of bowl with the thermostat controller. The mixing bowl can be held with the mixing apparatus and its height is adjustable. Suitable for operation on 220V, 1Ph, 50Hz AC Supply
Specifications : The apparatus consists of an epicyclic type stainless steel paddle imparting both planetary and revolving motion, by means of gears. It has two speeds of 140 + 5 r.p.m. and 285 + 10 r.p.m. with planetary motions of approximately 62 r.p.m. + 5 r.p.m. and 125 r.p.m.+/-10 r.p.m. respectively. The stand of the mixer has arrangement to raise or lower the bowl. Complete with stainless steel bowl of about six litres capacity. Suitable for operation on 230 volts, 50 cycles, single phase, A.C.supply.
Concrete mixer laboratory type, electrically operated. Designed to remove the burden- some work of hand mixing. Uniform thoroughly mixed batches can be produced. The counter balanced drum is easy to tilt 1.1/2 to 2cu.ft.mix. The total drum volume is however 3cu.ft. Mounted on a sturdy rubber tyred stand, and the drum is mounted for end discharge and equipped with end towing pole. Equipped with ½ h.p. electric motor. Suitable for operation on 220/230 volts A.C. single phase.
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