TOUCH THE WALL.
PULL FROM THE GROUND.
A contact-tolerant aerial platform sets the hook. A ground-anchored winch does the pulling.
Place · Clear · Pull
A caged, contact-tolerant aerial work platform and a ground-anchored winch station that scale loose rock off highwalls, cut faces and benches — the trade a rope crew does today, done with every person outside the fall zone. A civil work machine on the Canadian Shield Industrial line.
A contact-tolerant aerial platform sets the hook. A ground-anchored winch does the pulling.
Place · Clear · Pull
Scaling is the trade of pulling loose rock off a face before it falls on someone — and today it is done by workers on ropes and lift baskets, with a pry bar, under the exact rock they are there to remove.
The Rock Scaler is Canadian Shield's answer: a caged, contact-tolerant aerial work platform paired with a ground-anchored winch station. The aircraft flies the tool to the wall and braces against it on thrust-preloaded standoff legs; the winch, safely anchored on the ground, delivers every large force through a load-limited pull line. Where every other aerial platform in the estate is built to avoid touching anything, CS-530 is built to touch the wall — deliberately, repeatedly, and instead of a person.
It sits in the Industrial Series (CS-5xx), the surface civil line, alongside Seeder, Washer, Coater and Dredger — work machines named for the work they do, sharing the fleet's moulded-structure manufacturing base and its consumable-tooling economics. Highwalls above highways, quarry benches, open-pit walls, rock cuts: wherever a face sheds, this machine is bought to stand in for the person on the rope.
A multirotor braced on a wall can hold tens of newtons; breaking a keyed slab loose takes thousands. So the design refuses to pretend otherwise: flight does the reaching and placing, the ground winch does the pulling, and the reaction force routes into the anchor — never the airframe. The machine never lifts rock. Gravity is the co-worker.
Setting a hook is a tens-of-newtons task — exactly what a hovering platform is good at. The aircraft braces on its standoff legs and works the forged hook into the crack or slab edge the scaling plan calls out.
The cage takes the wall strikes and the falling grit; sacrificial panels are consumables by design. Contact legs carry force sensing, so the control loop blends thrust, leg preload and line tension into a steady braced stance beside an irregular face — a sustained contact allocation of ~50–100 N. Which rock gets a hook is never the machine's call: a qualified scaling authority marks the plan, the operator flies it, and the platform executes — it does not judge.
With the hook set, the platform retires beside the fall line — never under it — paying out line as it goes. The tether is routed clear of the corridor, because a severed line is a lost platform.
The fall corridor under the pull point is the page's one absolute: no platform, no person, no line inside it during any pull. That geometry is the real mitigation for falling rock — a light cage shrugs off grit, but a slab is defeated by not being under it. The exclusion is enforced procedurally and in the control software, interlocked with pull authorization: until the corridor reads clear, the winch will not turn.
On the operator's command — and only then — the ground winch takes up the line. The pull is load-cell limited with a mechanical fuse behind it, and the reaction force routes into the anchor, never the airframe.
This is the split that makes the machine honest. A winch in the ≥5 kN class breaks the slab's bond; gravity brings it down inside the empty corridor; the load trace on the console tells the operator the hook is set, the pull is building, the block has gone. The aircraft, metres to the side, has carried none of it. A quick-release on the pull line fires if tension ever traps the platform — the line is never allowed to become a leash.
The complete data card for the Rock Scaler — dimensions, working performance, power and control, the tool heads, construction and compliance, grouped the way a fleet buyer compares them.
Contact force is a braced-stance allocation; winch energy is stated for a full 5 kN × 2 m pull. Scaling output depends on rock condition, wall height, block-size distribution, hook-set success on real cracks, and wind beside the face — ask with your face data in hand and we will work the estimate with you, variable by variable. RPAS operation near workers, OHS and mines-act acceptance, and lifting-equipment rules vary by jurisdiction; permits and approvals belong to each job and are never implied by this page.
Canadian Shield's defence fleet exists to keep people out of harm's way. The Rock Scaler is that same doctrine wearing a hard hat: the most dangerous minutes in the scaling trade are the ones spent hanging under loose rock — so send the machine.
The safety architecture is layered the way the estate always layers it: the person leaves the fall zone first; the force leaves the aircraft second; the judgment stays human always. Deciding which rock is loose, keyed, or must not be pulled remains a qualified geotechnical/scaling authority's regulated call — the machine executes a scaling plan, it does not generate one. And because this is the surface civil line, the platform keeps its radios and its GNSS receivers: ordinary RF control and telemetry are permitted here and stated as a feature, with hard-line comms over the tether primary during pulls.
Underneath it is the same sovereign Canadian manufacturing base as the rest of the fleet: moulded GF-nylon structure on our own 5-axis-cut tooling, deliberately cheap rPET cage panels, and forged tool heads run as consumables — the razor-and-blades economics the family shares, applied to rock. One industrial base, amortised across every line, all of it at home.
Relative to a person under the wall, the platform is expendable — that is the product. It wears its strikes as line items: panels, hooks, tines and tips are replaced from stock, and the person who used to absorb that risk runs the console from outside the corridor.
A rock cut above a two-lane highway; the face has been shedding since the spring melt. Here is how the work goes — from tailgate to sign-off, with nobody under the wall at any point, and illustrative of how the machine is used rather than a job record.
The system arrives on one truck and setup is deliberate and short. The winch anchors — vehicle-mount on the truck or ground plate on the bench, set back clear of the face. The fall-zone exclusion is marked out and loaded into the console interlock. Then the platform flies the inspection head over the face; imagery goes to the qualified scaling authority, who marks the plan: these blocks, this order, this one we do not touch.
The platform goes to the wall on tether power and stays there. Hook cycles run the three moves: set the hook on a marked block, retire beside the corridor, the operator commands the pull and the winch brings it down — the load trace confirms each set, each pull, each release. Between hook cycles the rake head drags the face to shed gravel-to-fist scale fast, and the road under the work stays closed only along the corridor, not the whole cut.
The job ends the way every job in this estate ends — accounted for. A second photogrammetry pass documents the face; before/after imagery and the pull log go to the qualified person for sign-off. Panels, hooks and tips are inspected and replaced from stock — the consumables bin is the maintenance schedule. Line spooled, tether reeled, platform cased: the wall got scaled and no one roped up.
If you manage highwalls, rock cuts or benches — highways, quarries, mines — the conversation starts with your face data and ends with a machine on the wall instead of a person.