the rod frames frames are also a feature of the hunter systems. a larger footprint for stability; steel brake handles that will last forever; dual rod out-feeding positions and wheels inside the frame width. the two smallest sizes feature frames with the feedout built into the handle. all frames can be laid down on either side. these are just some of the design features that will make every unit more usable and friendly for the end user. 
we value the quality of our fiberglass duct rodders and the service of the goods.
according to the different specifications of the products,
we will 1 year to 3 years ranging from the warranty of the product to make, if quality problems during the warranty period, we will impermanence for customers to replace new product and pay the resulting transport costs. 
rod selection
when being pushed through the duct, any rod will tend to form “sine waves”, hitting the wall of the duct at certain intervals.
each time the rod comes in contact with the wall of the duct, it causes friction. the friction will build and eventually prevent the rod from being pushed any further. small rod in large duct will make more frequent contact with the ducting; the same rod in smaller duct will make less frequent contact and therefore less friction so it can be pushed further. large rod in small ducting is a good situation, but reduced flexibility of the rod may cause increased friction in the tighter bends
rod
dia.
tensile strength
of rod
minimum bend
radius
typical max.
duct dia
max. length of
push or pull
4.5mm
2,300 lb
105mm
50mm
100m
6mm
5800lb
180mm
60mm
150m
8mm
7,700 lb
260mm
80mm
200m
9mm
8,580 lb
300mm
100mm
250m
10mm
9850 lb
360mm
150mm
300m
11mm
11,000 lb
400mm
200mm
350m
12mm
13,000 lb
450mm
250mm
400m
13mm
17500 lb
510mm
300mm
450m
14mm
19500 lb
560mm
350mm
500m
15mm
23200 lb
610mm
400mm
550m
16mm
25120 lb
660mm
450mm
600m

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Bazhou Dpair Hardware Equipment CO.,LTD
Linda
17360763065
East Industrial Zone, North Loop Road, Bazhou, Hebei，China