Bending Equipment Database

Equipment types explorer

What each class of bending equipment does well, its typical capacity and its limits. Capacities are typical for the class — always check a specific machine's chart.

Lever-type hand tube bender

Manual · small tube

Brake and fuel lines, small frames, HVAC and plumbing tube

Typical capacity: Small OD, thin wall (brake, fuel and instrument lines; soft copper)
Drive: Hand lever
Materials: Copper, steel and stainless line within the tool's rating
Where it fits: Any bench or vehicle
Beginner-friendly: Yes
Relative cost: Lowest

Inexpensive and portable
Clean, repeatable bends on small tube
Angle marks on the form

Each tool fits one or a few tube sizes
Not for structural tube

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EMT conduit hand bender

Manual · electrical conduit

Electrical conduit runs: stubs, offsets, saddles and back-to-backs

Typical capacity: 1/2"–1" EMT, one shoe per trade size
Drive: Hand and foot pressure
Materials: EMT (some shoes also rated for rigid/IMC)
Where it fits: Job site
Beginner-friendly: Yes
Relative cost: Lowest

Offset and multiplier marks cast into the shoe
Fast on site

Made for conduit only
Accuracy depends on technique

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Manual rotary-draw bender

Rotary draw · ratchet or lever

Roll cages, chassis, bumpers, sliders, frames

Typical capacity: Typically up to about 2"–2.5" OD; thick-wall and larger sizes often need the hydraulic upgrade
Drive: Manual ratchet or long lever
Materials: Round tube, pipe and square tube with matching dies; mild steel and 4130 within rated wall
Where it fits: Home garage or small shop (needs a solid floor mount)
Beginner-friendly: With practice
Relative cost: Moderate (dies extra per size and radius)

True rotary-draw bends with a consistent CLR
Dies available for many OD/CLR combinations
Many models accept a hydraulic upgrade later

Physically demanding on larger or thicker tube
Each tube size and radius needs its own die

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Hydraulic rotary-draw bender

Rotary draw · hydraulic, air-over-hydraulic or electric pump

Cages and chassis in volume, heavy-wall DOM and 4130, off-road armour

Typical capacity: Commonly 2"–2.5" OD including heavier walls; see each manufacturer's capacity chart
Drive: Hydraulic cylinder (manual, air or electric pump)
Materials: Round, square and pipe with matching dies
Where it fits: Serious home shop to professional fab shop
Beginner-friendly: With practice
Relative cost: Moderate to high

Much less physical effort
Handles heavier walls than manual operation
Repeatable with degree stops or a degree ring

Higher cost
Still limited by die and frame ratings

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Hydraulic ram ("pipe") bender

Ram / press · bottle-jack style

Heavy-wall pipe for gates, railings, brackets and non-structural work

Typical capacity: Schedule 40/80 pipe, typically 1/2"–2" nominal
Drive: Hand-pumped hydraulic ram
Materials: Heavy-wall schedule pipe — not thin-wall tube
Where it fits: Garage, farm, site
Beginner-friendly: Yes
Relative cost: Low

Low cost for heavy pipe
No die-per-radius investment

Tends to flatten or kink thin-wall tube
Inconsistent radius; unsuitable for roll cages or exhaust

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Mandrel bender

Rotary draw with internal mandrel and wiper die

Exhaust systems, headers, turbo and intake piping

Typical capacity: Thin-wall tube at tight radii (exhaust and intake bends of roughly 1–1.5× OD are common)
Drive: Hydraulic or electric
Materials: Mild steel, aluminised steel, stainless, aluminium
Where it fits: Exhaust shop, performance fabricator
Beginner-friendly: Experienced users
Relative cost: High

Keeps thin-wall tube round through tight bends
Smooth bore for flow

Tooling for each size is expensive
Setup and lubrication are critical

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CNC / electric rotary-draw bender

Programmable production machine

Batch production of multi-bend parts

Typical capacity: Machine-specific — from small tube to large industrial sizes
Drive: Electric servo and/or hydraulic
Materials: Depends on tooling
Where it fits: Production shop; dedicated power and floor space
Beginner-friendly: Experienced users
Relative cost: Capital equipment

Programmable angles and rotation between bends
Springback compensation stored per material

High investment and training
Only pays off with volume

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Ring / section roller

Three-roll bending

Hoops, arches, handrail curves, rings

Typical capacity: Large-radius curves, arches and full rings
Drive: Hand crank or motorised
Materials: Tube, pipe, flat bar, angle (with suitable rolls)
Where it fits: Fab shop, architectural metalwork
Beginner-friendly: With practice
Relative cost: Moderate

Any large radius from one set of rolls

Cannot make tight bends
Several passes and trial-and-error to hit a radius

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Tube notcher

Joint preparation (not a bender)

Fish-mouth (coped) joints for cages and chassis

Typical capacity: Hole-saw notchers sized to the receiving tube OD
Drive: Drill or drill-press driven; belt and mill-style notchers also exist
Materials: Round tube
Where it fits: Any fab shop
Beginner-friendly: Yes
Relative cost: Low to moderate

Tight fit-up for strong welds
Adjustable joint angle

Hole saws wear quickly in 4130 and stainless

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