Inertia Bar Modulus Of Rigidity

Fiberglass duct rodder & snake duct rodder & electric rodder & fiberglass duct rod & duct rodder cable & conduit rodder & cable rodder & push pull rod description: Duct rodder applies in tow lead-rope through a pipe,it is auxiliary means. Surface smooth and high resilience,so the FRP perforator with ease passes the narrow channel. perforator consists of two parts: the glass fiber strengthen the level, the high-pressured low density polyethylene protective layer(smooth, firm ,can resist the adverse circumstance). It has time-savingreducing effort, improving efficiency, etc,And can be used for telecom cables, cable pipe and cleaning and plastic pipe of cloths to put.when use draws out the FPR pole by the pulley, then with a corresponding metal joint, penetrates in the pipeline. When cleaning, guide-head will drive cleaning tools to clean the pipe;When arranges the cable,you may first leads the steel wire or the iron wire, then enters the pipe with the steel wire or the iron wire hauling cable. Fiberglass duct rodder technical specifications: Glass fiber rod diameter 4.5-16mm Length 1-500m Working temperature -40+80 Min Bend Radius 295mm Breaking tension 4.5T Glassfiber density 150g/m 1.constructed of fiberglass reinforced in the center and consists of a rugged plastic layer that would ensure the lifetime of the flexible rod. 2.Excellent flexibility force. 3.Tensile strength about 500 Kgf. 4.designed for heavy duty applications ensuring greater rigidity and strength, while supporting additional forces without resentment to the multiple curvatures. 5.Wheel assembly for easy transportation. 6.Guide rollers and the right parts for rotary coupling. 7.Rolling bearing cage flotation (reel transport) for mobility should be light and easy to use in the field, including a parking brake for the flexible rod. 8. There is copper wire inside for tracing easily. Technical data of duct rodders 1. Glass reinforced composite core: general properties Property value keinforcement E-glass fiber glass content of inner part 75-80% material of pulling rod epoxy fiber glass(inner) high density polyethylene(outer) density >1.9gr/cm3 diameter tolerance +/-0.10mm work situation temperature -40 to +80 Mechanical prperties property value minimum pullling strength 4000 N+/-5% tensile modulus >30000Mpa consistency of rod 150gr/m +/-5% flexural modulus >30000M pa elongation at break 2.5-3% 2. Polyethylene cover Material: Medium density polyethylene resin for the insulating and jacketing of telecommunications cables. property value tensile strength >15N/mm2 environmental stress & crack resistance >1000 hr. heat stability OK. carbon black OK. packed by plastic woven, or wooden pallet. Length 0.5-1.5m Width 0.15-0.5m Height 0.5-1.5m

To Find the modulus of rigidity & Young’s Modulus for a wire. The 30cm long wire under test is connected to two brass rods 30cm long. Complete with test wires with connecting screws