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Grays
Slitters & Harrows
Harrows |
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From
furrow to seedbed in one pass |
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Few
moving parts cuts maintenance costs |
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Faster
seedbeds; taking less time, less labour |
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Disc & S-Tine
Harrows
Grays "Multi-Harrow" Seedbed Culitivators
break most rough ploughed land down to a fine-tilth
seedbed in one pass, ready for drilling; saving
time, labour and fuel.
To this is added the advantages of less ground compaction from
a one pass operation, plus a work rate high enough to help
you complete cultivations when the weather and soil conditions
are most favourable.
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Operations
Grays "Multi
Harrow" Combination Cultivators are designed
for the preparation of seedbeds for cereal
crops and carry four distinct cultivation toolings
within one frame.
Under normal working conditions
on most soil types, the operational
sequence of this combination
breaks down rough ploughed
land step by step to a fine
tilth, evenly spread over
a firm flat seedbed. Tilth
depth up to 4" 9100mm) |
Disc Tine
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S-Tine |
S-Tine
or Discs
Next
in line on the S-Tine models are two rows of
spring steel S-Tines which shatter the surface,
breaking the furrows into clods and are manufactured
in three working widths 8ft (2.44m), 10ft (3.05m)
and 13ft (3.96m).
The tines are staggered with sufficient spacing to allow
stones and trash to pass through. |
On
the Disc-type models manufactured in 8ft
(2.44m), 10ft (3.05m) and 12ft (3.66m) working
widths, two half width rows of heavy-duty
concave discs take the place of the s-tines.
The discs are 20" (500mm) diameter at 7/ ½" (190mm)
centres, running on sealed bearings.
The approach angle of the discs is adjustable to suit
varying operating conditions and each disc is fitted
with a cleaning scraper. a central duckfoot tine is fitted
between the discs to aid soil disposal. |
Dutch
Harrow
Behind
the S-tines or discs is mounted a three-bar
Dutch Harrow assembly suspended on a spring-loaded
patented parallel linkage, this keeps all
three dutch harrow bars parallel to the surface.
The front bar of this assembly acts as a
levelling bar on clots left by S-tines or
discs. Second and third levelling bars are
fitted with harrow tines raked towards the
rear. The tension on the coil springs controlling
the dutch harrow is adjustable to increase
or lessen the ground pressure.
Crumble Roller
Finally there is the crumble roller. This acts as a depth
control for the whole implement and can be raised or
lowered (three positions) to increase or reduce the penetration
of the toolings for differering soil conditions. The
crumbler compresses the undersoil to leave a firm even
seedbed which will retain moisture and ensure fast germination.
The crumbler also lifts and aerates the top soil, depositing
it as fine tilth on this firm undersurface.
Levelling Bar
At the front end of the implement frame there are two
half width spring-loaded Levelling Bars which vibrate
across the top of the furrows, to grade the surface and
fill up depressions in the field. These bars can be raised
or lowered to reduce or increase the grading effect.
The spring tension is adjustable.
Tow Bar Kit
A wheel and towbar kit for transporting the Multi-Harrow
lengthways is available as an option on the 10,12 and
13ft models.
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Levelling
Harrow
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At
the lower end of Grays range of cereal seedbed cultivators
is the Levelling Harrow. This simple, economically
priced cultivator is designed for lighter, more easily
worked soils and for the ploughed land which has
been broken down by winter frosts - for conditions
where there is no need for heavier more complex cultivation
equipment. Grays Levelling Harrow has a rigid (adjustable)
front levelling bar angled rearwards to grade the
soil. |
This
is followed by a three row harrow, free to rise
and fall within the main frame and follow the contours
of the ground. The leading bar on this harrow assembly
is adjustable, allowing the pitch of the leading
tines to be altered to further match the operating
conditions. Behind the harrow is a heavy-duty crumbler
roller, carrying the weight of the main frame.
The weight on this crumbler compresses the undersurface
to leave a firm flat seedbed, and lifts and aerates
the top soil to provide a fine light covering tilth.
maximum depth of tilth is 4" (100m) |
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Slitters |
Pasture
Slitter
Aeration of grassland helps to prevent slurry run-off, encourages strong root
growth, improves fertiliser 'take-up' and generally assists in a wide range
of aspects of grassland maintenance.
Grays
Pasture Slitter is a rugged, heavy aerating
roller, fitted with hardened steel blades
which offer clean-cut performance woth
prolonged blade-life. Penetration to
a depth of up to 7 ½" can
be achieved.
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The
drum is water ballasted to enable
the operator to vary the depth
of penetration. The rotor is land-driven,
eliminating the need for expensive
drive-trains, reducing operating
costs and eliminating the possibility
of drive-train failure.
Where further weight is required, this can be added in the form of concrete blocks
placed in the built-in weight tray. A mounted rear roller is an option on all
three models, and a towing eye is also provided as standard. |
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Pasture
or grassland slitting has always been
recognised by turf mainrenance professionals
as a beneficial technique for encouraging
rice growth. As pressure for enhanced
grass yields in agriculture increases,
the system is becoming an increasingly
important one for farmers too.
MODEL |
WIDTH |
No
OF BLADES |
UNBALLASTED
WEIGHT |
GGS |
1.8
m(6ft) |
65 |
510kg |
GGS
8 |
2.4
m (8ft) |
85 |
665kg |
GGS
10 |
3.0
m (10ft) |
105 |
740kg |
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Email:
info@graysequipment.co.uk |
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