Description:
A chain harrow is used a few times a year to improve pasture. There are several designs but a common type for occassional use is made from 3 sets of chain sheets attached to a bar towed behind a vehicle. Each sheet of chain weighs about 45kg making them difficult to carry to and from the fields. This simple trolley makes the arduous task of setting up and putting away much easier.

Dimensions (to lift the rolled up harrow off the ground):
Main bar 1620mm in front of the upright
Upright 460mm from the axle to the main bar
The main bar is 660mm off the ground
Wheel 400mm diameter
Axle width 800mm between the inside of each tyre

Materials (all sizes approximate):
Galvanised steel tube 33mm OD 3mm thick walls (slides over axle)
Stainless steel tube 25mm (1") OD 2mm thick walls (axle to fit 1"Dia wheel hub)
Galvanised steel flat bar, 1"x2"Dia washers, spring clips, U-bolts, wheelbarrow or trailer wheels.

Description:
Hay Bar® is a manger for feeding horses hay made from strong plastic. Designed to mount in the corner of a stable. Details of the original product can be found on the manufacturers web site www.haybar.co.uk
It is such an excellent product that we wanted one to put in the field or yard.

By experimentation I found I could bend it to mount it on a flat surface instead of a corner. This results in the front being slightly higher so it was necessary to fix it as close to the ground as possible and angled forwards slightly. I cut the outer rim to help it bend and held it back on to the strengthening tube with cable ties.

Dimensions:
Width= 900mm
Height= 1200mm

Materials (all sizes approximate):
Hay Bar®
12mm WBP Ply
38x88mm fence rails
Galvanised steel flat bar, Plastic cable ties
20mm plastic conduit inside the rim tube for added resistance to kinking