Technical Foundation
What Is a Cable Puller?
A cable puller applies controlled, sustained tension to pull wire or cable through conduit, along overhead runs, or across a span between structures — a task that exceeds what can be done by hand once cable length, conduit friction, or bend count builds up resistance. Come-along (ratchet) pullers are hand-operated, using a ratcheting lever mechanism against a chain or cable to build mechanical advantage; they're the standard tool for shorter, moderate-tension pulls and general rigging.
Hydraulic and powered pullers step up to much higher sustained pulling forces and longer continuous pulls, common on utility and underground conduit work where cable runs are long and friction adds up fast. Rated pulling capacity must exceed the calculated pulling tension for the job — including a safety margin — since undersized pullers can fail or stall mid-pull, and the puller's capacity must also be paired with a cable grip or pulling eye rated for the same load so the weak link isn't the connection to the cable itself.
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| Spec | What It Means | Why It Matters |
|---|---|---|
| Pulling Capacity | Rated in lb or kg, commonly 2,000-20,000+ lb | Must exceed calculated pull tension with safety margin — not just the cable's own weight |
| Mechanism | Ratchet (come-along), hydraulic, powered/electric | Hydraulic/powered units sustain higher tension over longer continuous pulls |
| Cable/Rope Diameter Range | Matched to the wire rope or synthetic rope used | Grip and sheave sizing must match the pulling rope diameter for proper engagement |
| Travel/Stroke Length | Distance covered per ratchet or hydraulic cycle | Shorter stroke means more cycles needed to complete a given pull distance |
| Cable Grip/Pulling Eye Rating | Load rating matched to puller capacity | The connection to the cable must be rated at least equal to the puller's capacity |
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Applications
Where Cable Pullers Get Used
Cable pullers are specified anywhere cable, wire rope or a heavy load needs controlled, sustained pulling tension.
Electrical & Utility Conduit Pulling
Pulling conductor and cable through underground and overhead conduit runs on commercial and utility electrical work.
Rigging & General Construction
Come-along pullers used for tensioning, positioning and pulling loads during rigging and structural work.
Fence & Wire Installation
Ratchet pullers tensioning wire rope, chain-link fabric and fence line wire during installation.
Utility Line Construction
Hydraulic and powered pullers used for long-span overhead conductor pulls on transmission and distribution lines.
Industrial Maintenance & Rigging
General-purpose pulling and positioning of heavy equipment, machinery and loads during plant maintenance.
FAQ
Cable Pullers Questions, Answered
How do I determine the pulling capacity I need?
Calculate the expected pulling tension for the job — accounting for cable weight, conduit friction (which increases significantly with bend count and length), and any incline — then select a puller rated well above that calculated tension for a safety margin. Underground and long conduit runs especially benefit from a pulling tension calculation rather than guessing, since friction losses aren't intuitive.
What's the difference between a come-along and a hydraulic puller?
A come-along is a hand-operated ratchet mechanism, portable and simple, well suited to shorter pulls and moderate tension in general rigging and electrical work. A hydraulic puller uses fluid pressure to generate much higher sustained pulling force over longer continuous pulls with less operator fatigue, and is the standard choice for utility-scale conductor pulls and long underground conduit runs.
Why does the cable grip or pulling eye rating matter as much as the puller's capacity?
The cable grip or pulling eye is the connection point between the puller and the cable being pulled, and if it's rated below the puller's capacity, it becomes the failure point under load — the puller can generate more tension than the connection can safely hold. Always match the grip or eye's load rating to at least the puller's rated capacity, not just to the cable's own weight.
Can a come-along be used for overhead lifting instead of pulling?
Most come-alongs are rated and designed specifically for pulling (horizontal or angled tension), not vertical lifting of suspended loads — using one for overhead lifting can violate its rating and applicable safety regulations. If vertical lifting is needed, use equipment specifically rated and designed for that purpose, such as a chain hoist.
How often should cable pullers be inspected?
Ratchet mechanisms, hooks, chains and cables should be visually inspected before each use for wear, cracks, deformation or corrosion, with a more thorough documented inspection on a periodic schedule (commonly annually) per your safety program. Any puller showing a bent hook, damaged ratchet pawl, or frayed cable should be taken out of service until repaired or replaced.
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