ROTO 1000M Magnetic Circle Cutting Guide for Plasma and Gas Cutting Torches

Name: ROTO 1000M Magnetic Circle Cutting Guide for Plasma and Gas Cutting Torches
Brand: Cruxweld

ROTO 1000M

ROTO 1000M · circle cutting guide

Cut true circles, not wobbly ones.

The ROTO 1000M is a magnetic circle cutting guide for hand plasma and gas cutting torches. Stick the six-magnet base on the centre, set the radius on the 500 mm engraved bar, clamp the torch and walk it round: clean 100 to 1,000 mm circles on steel plate.

100–1,000 mmCircle diameter
6 magnetsMagnetic base
Plasma + gasTorch types
36.5 mmHolder bore

Compatible with selected plasma and gas torchesCheck fit →

Cruxweld FINELINEplasma torches
P80 / AG60 / SG55type plasma torches
G01-30 / G01-100gas cutting torches

In the box500 mm radius barMagnetic baseTorch holder + wheel2 adapter rings

Get a Quote → WhatsApp +91 88008 82983

Price, delivery & technical help — get a fast response.

Overview
Specifications
Related Items
Question & Answers

Overview

How it cuts

A fixed centre and a set radius make every circle round

Freehand circles drift. The ROTO holds the torch at a fixed distance from a magnetic pivot, so the torch can only travel round the circle you set. You control the speed; the guide controls the shape.

50–500Radius mm
100–1,000Diameter mm
36.5 mmHolder bore
530 mmOverall length

See it cut

ROTO circle cutting guide in action

Round holes and discs cut in steel plate with the ROTO circle cutting guide and a Cruxweld plasma torch

Mild steel plate

The result

Guided circular cutting for holes, discs and rings

Holes and blanks cut in steel plate with a magnetic circle guide and a Cruxweld plasma torch. The locked radius keeps the torch on a set circular path; finished size and edge quality still depend on setup, kerf and travel speed.

HolesPipe and duct openings
DiscsEnd caps and blanks
RingsTwo concentric cuts

What is on it

Simple manual construction for easy setup

ROTO 1000M side view: magnetic base, wing locking screw, radius bar, torch holder and guide wheel

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1
Magnetic baseSix permanent magnets around a steel centre point; 58 mm across, 65 mm tall.
2
Wing locking screwLocks the radius bar at the set length.
3
500 mm radius barLaser-engraved scale for setting and repeating the radius.
4
Holder bracketJoins the torch holder to the end of the bar.
5
36.5 mm torch holderClamp ring with thumb screws; two adapter rings for smaller torch bodies.
6
Height-adjustable guide wheelRides on the plate and holds the torch at a steady stand-off.

Circle size

From a 100 mm pipe hole to a 1,000 mm tank end

Pick a size to see the bar setting.

Small100 mmMedium500 mmLarge1,000 mm

100 mmmm

Small circle, radius 50 mm

Pipe holes, small flanges and bolt-hole blanks.

Set the bar to 50 mm on the scale. Diameter = 2 × radius.

500 mmmm

Medium circle, radius 250 mm

Base plates, end caps and manhole openings.

Set the bar to 250 mm on the scale. Diameter = 2 × radius.

1,000 mmmm

Large circle, radius 500 mm

Large discs, tank ends and big duct openings.

Set the bar to 500 mm on the scale. Diameter = 2 × radius.

Four steps

Using the circle cutting guide

01Fix the centreSet the centre point on the punch mark. Six magnets lock the base to the plate.
02Set the radiusSlide the bar to the radius on the engraved scale and tighten the wing screw.
03Clamp the torchFit the torch in the 36.5 mm holder, using an adapter ring if needed. Set wheel height.
04Walk it roundStart the arc and guide the torch round the pivot at an even speed.

Magnetic base

Six permanent magnets and a centre point hold the pivot

The base sits on the centre punch mark and the magnets clamp it to the plate, so the centre does not creep while you cut. The wing screw on top locks the radius bar.

ROTO magnetic base with six permanent magnets and centre point — **Six permanent magnets**Secure hold on mild steel and other ferrous plate.

Underside of the ROTO magnetic base: magnetic inserts around a steel centre point — **Steel centre point**Locates the base on the centre punch mark.

Torch holder and wheel

A 36.5 mm holder, two adapter rings and a guide wheel you can raise or lower

ROTO torch holder with 36.5 mm bore and adjustable guide wheel — **36.5 mm holder bore**Thumb screws clamp the torch body.

Height-adjustable roller support on the ROTO torch holder — **Height-adjustable wheel**Sets a steady torch stand-off over the plate.

ROTO 500 mm radius bar with laser-engraved scale — **Engraved radius bar**50–500 mm radius, read straight off the bar.

Torch fit

One circle cutting guide for plasma and gas cutting torches

Compatible with selected plasma and gas torches, subject to holder and adapter fit. The holder clamps the torch body, so fit depends on the torch head size, not on the machine model.

Cruxweld plasma torch fitted to the ROTO circle cutting guide — **Cruxweld plasma torches**Fits the hand torches on FINELINE plasma cutters.

Hand plasma torch clamped in the ROTO torch holder — **Other hand plasma torches**P80, AG60 and SG55-type torch heads, with an adapter ring where needed.

Gas cutting torch on the ROTO circle cutting guide — **Gas cutting torches**G01-30 and G01-100 type oxy-fuel cutting torches.

Not sure it fits? WhatsApp a photo of your torch and the torch body diameter. Our technical team will confirm before you order. Check torch fit on WhatsApp

ROTO 1000M kit: radius bar, magnetic base, locking screw, torch holder with guide wheel and two adapter rings

In the box

What comes with the ROTO 1000M

1500 mm radius bar with engraved scale
2Magnetic base with centre point and wing locking screw
3Torch holder with height-adjustable guide wheel
4Two adapter rings for smaller torch bodies

Accuracy tip

Allow for the kerf and the part comes out the right size

The torch removes a strip of metal as wide as the cut. Set the radius half a kerf larger for a disc and half a kerf smaller for a hole.

Cutting a disc

Torch path outside the line, so the disc keeps its size. Radius = disc radius + half the kerf width.

Cutting a hole

Torch path inside the line, so the hole keeps its size. Radius = hole radius − half the kerf width.

Aluminium or stainless steel? These need a suitable plasma cutting system; oxy-fuel gas cutting is for mild and low-alloy steel. The magnets hold only on ferromagnetic plate, so on aluminium and non-magnetic stainless steel the centre needs a separate fixing, such as a clamped steel pad.

Applications

What fabricators cut with a circle cutting guide

Discs and blanksEnd caps, base plates and round blanks cut from plate.
Round openingsManholes, duct openings and pipe holes in plate and tank walls.
RingsTwo concentric cuts give a ring or washer blank.
Flange blanksOuter and bore circles for fabricated flanges.
Tanks and vesselsNozzle and manway openings on flat plate before rolling.
Maintenance jobsRepair plates and round patches cut on site.

Pair it with

Plasma cutters and cutting equipment that work with the ROTO

FINELINE 40CUp to 12 mmSingle-phase plasma cutter with built-in compressor.

FINELINE 80ICUp to 20 mmSingle or three-phase, built-in twin compressor.

FINELINE 100ICUp to 25 mm380 V three-phase, built-in compressor, Cut + MMA.

FINELINE 120Up to 30 mm415 V three-phase, external air, CNC interface.

Portable CNC plasmaProfiles and nestingWhen you need shapes, not only circles.

Gas cutting productsOxy-fuelTorches and accessories for gas cutting.

Why Cruxweld

Why buy your circle cutting guide from Cruxweld

GeM Registered OEM ManufacturerBuy direct with GST invoice. Plasma cutters, torches, consumables and the ROTO from one supplier.
Supported WorldwideOur technical team checks torch fit and helps with setup on WhatsApp and video call.
Works with selected torchesCompatible with selected plasma and gas cutting torches, subject to holder and adapter fit. Our team confirms the fit before you order.

Get the ROTO 1000M price

Send a photo of your torch and the circle sizes you cut. Our team confirms the fit and sends a quotation.

💬 WhatsApp for price 📞 +91 88008 82983

Specifications

Technical data

ROTO 1000M specifications

Specification	ROTO 1000M
General
Model	ROTO 1000M
Product type	Magnetic circle cutting guide for manual plasma and gas cutting
Operating mechanism	Manually guided rotation around a fixed centre pivot
Drive	Non-motorised
Power requirement	None for the guide
Circle size
Cutting diameter	100–1,000 mm
Cutting radius	50–500 mm
Radius bar	500 mm, laser-engraved scale
Radius lock	Wing locking screw on the base
Base and holder
Centre mounting	Magnetic base, six permanent magnets, steel centre point
Base size	58 mm diameter × 65 mm height
Torch holder bore	36.5 mm, with two adapter rings
Torch clamping	Thumb screws on the holder ring
Torch support	Height-adjustable guide wheel
Overall length	530 mm
Compatibility
Plasma torches	Cruxweld FINELINE hand torches; P80, AG60 and SG55-type torch heads, subject to holder fit
Gas cutting torches	G01-30 and G01-100 type oxy-fuel cutting torches, subject to holder fit
Mounting surface	Flat ferromagnetic plate such as mild steel
Non-magnetic materials	Aluminium and non-magnetic stainless steel need another centre fixing
Cutting thickness and speed	Set by the connected plasma or gas cutting system, material and travel speed
Accuracy	Depends on radius setting, pivot stability, torch alignment, kerf and operator control
In the box
Supplied with	500 mm radius bar, magnetic base with wing locking screw, torch holder with guide wheel, two adapter rings
Not included	Cutting torch, plasma power source or gas cutting set, and air or gas supply: supplied separately

ROTO 1000M dimensions: 500 mm radius rod, 58 mm magnetic base, 65 mm height, 530 mm overall length — **ROTO 1000M dimensions**The cutting radius is read on the bar from the pivot centre to the torch holder.

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Question & Answers

FAQ

Circle cutting guide: questions buyers ask

What is a circle cutting guide?

A circle cutting guide, also called a circle cutting compass, holds a cutting torch at a fixed distance from a centre pivot so the torch travels in a true circle. The ROTO 1000M uses a six-magnet centre base and a 500 mm engraved radius bar.

What circle sizes can the ROTO 1000M cut?

Circles from 100 to 1,000 mm diameter, which is a radius setting of 50 to 500 mm on the bar.

Which torches does it fit?

It is compatible with selected plasma and gas torches, subject to holder and adapter fit. The holder bore is 36.5 mm and two adapter rings are supplied for Cruxweld FINELINE hand torches, P80, AG60 and SG55-type plasma torch heads, and G01-30 and G01-100 type gas cutting torches. WhatsApp a photo of your torch and our technical team will confirm the fit.

Can I use it for gas cutting?

Yes. Clamp a G01-30 or G01-100 type oxy-fuel cutting torch in the holder and cut circles the same way as with a plasma torch.

Does it work on aluminium and stainless steel?

A suitable plasma cutting system can cut aluminium and stainless steel; conventional oxy-fuel gas cutting is for mild and low-alloy steel. In either case the magnets only hold on ferromagnetic plate such as mild steel, so on aluminium and non-magnetic stainless steel the centre needs a separate fixing, such as a clamped steel pad.

Does it rotate by itself?

No. It is a manual guide with no motor and no power supply. You move the torch round the pivot at an even speed.

Does it increase how thick I can cut?

No. Cutting thickness and speed come from your plasma cutter or gas cutting set. The guide controls the shape of the cut.

How do I get an exact hole or disc size?

Allow for the kerf. Set the radius half a kerf larger for a disc and half a kerf smaller for a hole. Parts that need a machined finish may need light grinding or machining.

How do I get the price?

WhatsApp +91 88008 82983 with a photo of your torch and the circle sizes you cut. Our team confirms the fit and sends a GST quotation.

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