The push cable, sometimes called the pushrod, is the fibreglass core that drives the camera down the pipe. Its length, diameter, and flex decide how far the head reaches and which bends it can turn. This guide explains each of those properties from verified system data, so you can read a cable specification and know what it means for your runs, rather than trusting the headline length alone.
Push cable length, diameter, and flex class, database-backed. We do not invent bend radii or infer stiffness from length.
| Cable / system | Length | Ø mm | Flex | Bend radius | Status |
|---|---|---|---|---|---|
| RIDGID SeeSnake Mini push cable assembly | 200 | 9.1 | MID_STIFF | 3 in | VERIFIED |
| RIDGID SeeSnake Mini Pro mid-flex push cable | 200 | 9.1 | MID_STIFF | 3 in | VERIFIED |
| Sanyipace S850 100 ft push cable (integrated) | 100 | 7 | MID_FLEX | Not published | VERIFIED |
| Sanyipace S850 165 ft push cable (integrated) | 165 | 7 | STIFF | Not published | VERIFIED |
| Sanyipace S850 100 ft locator-kit push cable | 100 | 7 | MID_FLEX | Not published | VERIFIED |
| VEVOR WP9602B soft push cable | 66 | 5 | HIGH_FLEX | Not published | VERIFIED |
| VEVOR 100 ft basic push cable | 100 | , | MID_FLEX | Not published | PARTIAL |
| VEVOR 165 ft locator-kit push cable | 165 | , | STIFF | Not published | PARTIAL |
| Anysun 100 ft push cable | 100 | , | MID_FLEX | Not published | PARTIAL |
Length is not the same as reach
A cable length is measured straight. The pipe below is not straight. It dips, turns at the cleanout, and bends where the lateral meets the main. Every bend costs push, so a rod rated for 100 feet in open pipe may stall well short of that once it fights several turns. Read the quoted length as an outer limit, then choose a cable with headroom over your straight line distance to allow for the friction the bends add.
Diameter and flex
Diameter is the thickness of the rod. A thicker cable has more backbone and pushes further before it coils up inside the pipe, but it needs more room to turn a bend. A thinner cable turns tight branch lines easily and buckles sooner on a long straight run. Flex class describes the same trade in words, from soft and high flex through to stiff. Neither extreme is best on its own. The right balance depends on whether your runs are long and open or short and full of turns.
Minimum bend radius
Some makers publish a minimum bend radius, the tightest curve the cable is meant to take. It is a guide, not a promise that the rod will negotiate every fitting. Where a bend radius is not published, we show it as not stated rather than infer one from the length, because the two are separate facts. Treat a stated radius as the edge of comfortable turning, and expect a very tight quarter bend to be harder than the number alone suggests.
Matching the cable to the head
Cable and head work as a pair. A heavy head on a thin rod can wag and stall, while a small head on a stiff rod pushes far but rides low in wide pipe. If your runs are long and the pipe is wide, favour a stiffer rod with a centred or self levelling head. If your runs are short and bendy, a more flexible cable with a small head clears the turns. The specification is only complete when you read the cable and head together.
Replaceable cable
A push cable is the part most exposed to damage, since it takes the strain of every push and every tight bend. Some systems let you replace the cable on its own, so a kinked or worn rod does not retire the whole reel. Where a system does not state whether the cable is replaceable, treat that as unconfirmed and ask before you buy if serviceability matters to you.
Cold weather and cable care
Temperature changes how a cable behaves. Cold stiffens the jacket and adds drag inside the pipe, so a rod that reached the main in summer can fall short on a freezing morning. Let the reel warm slightly and feed it slowly to keep the reach you expect. Care matters year round too. Wipe the cable as you wind it back, keep it clear of sharp edges at the cleanout, and store it loosely coiled rather than kinked. A rod looked after this way keeps its push far longer than one left dirty and bent.
Frequently asked questions
Why did my cable stop before the end of the pipe?
Bends, roots, and offset joints absorb push before the cable runs out. A stall usually means friction, not a short rod. Ease back, feed slowly, and rotate the cable gently to work past the obstruction rather than forcing it, which only kinks the rod behind the head.
Does a stiffer cable always push further?
On a long straight run, yes, a stiffer rod drives further before it coils. In pipe full of tight bends the opposite can be true, because a stiff rod fights the turns and stalls. Match the flex to the shape of your runs, not just their length.
How much cable length should I buy?
Measure your longest real run and add a margin for bends. Required pushrod length depends on access-point location, routing, inspection endpoint, bends, and friction. Choose sufficient nominal reach with practical reserve rather than assuming a standard property distance, but a 150 to 165 foot reel gives comfortable headroom on a normal plot. Buying far more than you need adds weight without benefit.