DIGGER
Tractor-mounted Unit from New Zealand
DIGGING depth of a new tractor- mounted hydraulic excavator from C.W.F. Hamilton and Co., Ltd., Lunns Road, Christchurch, New Zealand, is 13 ft. 6 in. The machine, the HX50, slews through 185 degrees, has a reach from the slew point of 17 ft. 6 in. and will load over a height of 10 ft. 5 in.
The power unit is a Nuffield 460 tractor. Booms are of folded steel sections. The standard bucket is 24 in, wide and is fitted with a renew- able cutting edge, corner tips and teeth made from manganese steel.
The pump is a Hamilton pressure loaded gear type delivering 30 gallons a minute at 1,500 r.p.m. It is driven from the front of the tractor by means of a double universal coupl- ing. Double acting jacks with 24in. diameter hard chrome jack shafts
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TIRWA
Thus the bulk handler replaces small fleet of vehicles.
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The containers are made in tipper units from 44 cu. yd. to 20 cu. yd.
In picking up a loaded container the vehicle drops its stabilising jacks and places its wheel chocks in posi- tion. A winch cable pulls the con- tainer on to the vehicle carrying frame. As the container is winched up the tilted frame is lowered until guide runners under the container mate with the frame. It then slides along the carrying frame, which is gradually lowered by the driver un- til it is in its correct horizontal posi- tion on the vehicle chassis.
The container can be unloaded either by sliding it down the tilted carrying frame or by releasing the tailboard and tipping the contents normally.
H.A. Grummet and Son Pty., Ltd., 120 Western Street, East Brunswick, Victoria, are the makers.
As yet
they do not have distributors in South East Asia.
Hamilton HX50 excavator digs to 13 ft. 6 in.
EXCAVATOR Crawler-mounted with
cu. yd. bucket
operate the lift, dig and bucket movements, while 44 in. diameter jacks with 2 in. hard chrome shafts work the rear stabilisers and slewing.
Hamilton's Far East distributors are: William Jacks and Co., Ltd., Hong Kong: Tropical Commercial Commercial Co., Inc., Manila; United Motor Works, Ltd., Singapore; Unit- ed Motor Works (Siam), Ltd., Bang- kok; Treego Trading Ltd., Kuala Lumpur.
BULK HANDLING
System Gives Faster Work Cycle
QUICKER removal of spoil from construction sites is achieved by a new Australian system which involves a heavy duty carrier with large de- tachable containers.
An empty container is deposited by the truck which then moves into position, tilts its carrying frame and begins winching a full container up to its deck. After delivery of the full container, the truck returns with an empty one, completing the cycle.
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EXCAVATOR/CRANES with bucket capacities from 2 to 30 tons are made by Thomas Smith and Sons (Rodley), Ltd., Leeds, UK, who have added to their range a medium size machine with acu. yd. bucket.
As a crane, this Smith 14 can lift up to 6 tons on 66-2/3 per cent. ratings. Precision features such independent derricking, power-low- ering and swing brake are available.
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The machinery, which is accessible by way of sliding doors and re- movable panels is encased at low level to give the driver all-round visi- bility. The standard power unit is a Ford six-cylinder water-cooled diesel engine, developing 50 b.h.p. at 1,300 r.p.m. with over centre clutch and single speed reduction unit. Alterna- tive power units are the Lister H.A.4 air-cooled diesel engine or the Gard- ner water-cooled diesel engine with two-speed gear box.
As an operated
excavator the 14 can be with face shovel, drag
Smith 14 with cu. yd. face shovel.
shovel or dragline and for crane duties a maximum boom length of 60 ft. is possible.
Smith's distributors include: Yip In Tsoi and Co., Ltd., Bangkok; Gilman and Co., Ltd., Hong Kong; and The Borneo Co. (London), Ltd., London, E.C.3 (agents for Malaysia).
LORRY CRANE
Hydraulic Unit has Telescopic Boom
ALMOST any type of lorry chassis makes a suitable mounting for a hydraulic crane being produced by Tadano Iron Works Co., Ltd., 34 Shinden-cho, Takamatsu, Japan.
There are three models with lifting capacities of 7, 5 and 3 tons. Each may be fitted with a two-step or three- step telescopic boom and most parts are common to all three units.
The boom is raised by a hydraulic pump fixed between the centre of the boom and the base of the mast. Boom and mast are turned by a slewing hoist through racks and pinions, while hoisting is powered by a car engine through a second transmission.
Controls include a clutch pedal, boom elevating lever, boom slewing lever, winch lever, accelerator pedal,
Tadano hydro crane
Far East Architect & Builder February, 1965