Dynex 5M Trackless Welding Carriage – Best Weaving Automation for Fillet Welds

Dynex 5M
Trackless welding carriage · Oscillating · 4WD
No Rail to Lay. Set the Weave, Press Start.

The CRUXWELD Dynex 5M is a trackless welding carriage with a built-in torch oscillator. Four-wheel drive and magnetic stability carry the torch along a fillet or seam at 150–2000 mm/min while it weaves in one of five patterns — and an inductive switch stops it at the end of the weld.

150–2000
mm/min travel
5
Weave patterns
±0.1 mm
Oscillation
IP54
Protection
Play video
▶ Watch it weld
✓Runs on the plate — no rails, no track set-up
✓Straight, trapezoid, triangle, square, fast zig-zag
✓Auto-stop at the end of the weld

Full specifications

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

Overview

1Overview

A Trackless Welding Carriage for Long Fillets and Seams

Hand-held MIG on a long fillet changes with the welder: travel speed drifts, the weave widens, the bead looks different at each end. A rail-mounted tractor fixes that but adds track to lay and move for every joint. The Dynex 5M trackless welding carriage sits between the two — place it on the plate, clamp your torch and let it drive.

The carriage holds the torch at a constant angle and speed and swings it with a brushed oscillating motor. Swing speed, swing angle, pause time at each side and centre deviation are set on the digital controller, so the bead size and shape come out the same on every run and every shift.

No rails
Runs directly on the workpiece; set-up is placing the carriage.
Four-wheel drive
Steady travel from 150 to 2000 mm/min.
Built-in oscillation
Swing ±15°, precision ±0.1 mm.
Auto-stop
Inductive switch ends travel at the weld end.
Dynex 5M trackless welding carriage running a MIG fillet weld on a steel plate
Dynex 5M welding carriage side view with wheels and torch holder
Dynex 5M trackless welding carriage with controller, guide arms and cables
2Trackless · four-wheel drive · auto-stop

No Rail to Lay: One Run, Start to Auto-Stop

Watch one run on a fillet joint. The trackless welding carriage sits straight on the plate, four-wheel drive carries the torch along the joint while the oscillator weaves the bead, and the inductive switch stops it at the end of the weld.

NO RAIL · RUNS ON THE PLATEWeld endDetachable controllerDYNEX 5MAUTO-STOP
1

Place it on the plateNo rail or track to lay. The controller detaches and sits where the operator can see it.
2

Weave along the jointFour-wheel drive carries the torch at 150–2000 mm/min while it weaves.
3

Auto-stop at the endAn inductive switch stops the carriage at the end of the weld.
3Selectable weld patterns

Five Weave Patterns, One Mode Button

Press the Welding mode button on the controller to pick a pattern — an LED shows which one is active. Each card below lays its bead the way the carriage does.

1Straight

No weave — a straight run down the joint.

2Trapezoid

Swings across and holds at each side for a flat-topped weave.

3Triangle

A continuous zig-zag from side to side.

4Square

Moves quickly to each side and holds, for a square-edged weave.

5Fast zig-zag

Short, quick swings for a tight, dense weave.

Swing speed 0–100Swing angle ±15°Left / right pause 0–2.5 sCentre deviation 0–±8°Oscillation precision ±0.1 mm
4Digital controller

Every Setting on One Detachable Panel

Dynex 5M digital controller with walking speed, swing speed, swing angle and pause time settings1Walking (travel) speedCarriage speed from 150 to 2000 mm/min, shown on the display.2Swing speed and swing angleHow fast and how wide the torch oscillates, up to ±15°.3Left and right stop timePause at each edge of the weave, 0–2.5 s.4Tune in (deviation)Shifts the weave centre to one side of the joint, 0–±8°.5Welding modePush button picks one of five weave patterns; an LED shows the active one.6Arc switchEnd the arc at the weld end, no arc termination, or non welding (travel with the arc off).7Walking directionSets the direction of travel.8Start / StopStarts and stops the carriage; the inductive switch stops it at the weld end.

Detachable controller with digital displays.

The controller detaches from the carriage, so the operator can set and watch the weld from a comfortable position.

1

Walking (travel) speed
Sets carriage speed from 150 to 2000 mm/min, shown on the display.
2

Swing speed and swing angle
Controls how fast and how wide the torch oscillates.
3

Left and right stop time
Pause at each edge of the weave, 0–2.5 s.
4

Tune in (deviation)
Shifts the weave centre to one side of the joint.
5

Welding mode
Push button picks one of five weave patterns; an LED shows the active one.
6

Arc switch
End the arc at the weld end, run with no arc termination, or Non welding — the carriage travels with the arc off for setting up.
7

Walking direction
Sets the direction of travel.
8

Start / Stop
Starts and stops the carriage; inductive switch stops it automatically at the weld end.
5Why fabricators choose it

What Changes on the Shop Floor

01
Same bead, every operator
Speed, swing and pause are set numbers, not hand feel.
02
No track to lay
Place the carriage and weld — quicker set-up between joints.
03
Less rework
Steady travel and weave mean fewer defects and less material waste.
04
Less fatigue
The welder supervises the run instead of holding the torch for metres.
05
Works with your MIG set
Clamps torches from 16 to 50 mm diameter.
06
Built for the shop
IP54 dust and water resistance; 17 W carriage drive.
6Applications

Where the Dynex 5M Is Used

Fillet welding
Stiffened and ribbed plates, beams and brackets.
Tank fabrication
Long tank fillets and seams.
Shipbuilding
Stiffener-to-plate fillets on panels.
Bridges & steel structures
Beams and girders with long welds.
Petrochemical fabrication
Repetitive welds on heavy plate work.
Multi-position welding
Fillet, vertical and horizontal positions.
Dynex 5M welding carriage welding along a steel joint with the arc lit
Dynex 5M trackless welding carriage welding a curved joint

Need a rail-guided carriage instead? See the DynaMove 45K, the magnetic DynaSwing 100K or the WeldOrbit 360. Pair the Dynex 5M with one of our MIG welding machines.

7Why buy from CRUXWELD

Automation Support from People Who Weld

45+ years of welding expertise
Set-up help for speed, swing and pattern from our technical team on WhatsApp and video call.
GeM Registered OEM Manufacturer
Tender-ready documentation for government, PSU and institutional buyers.
Tested before dispatch
Every carriage is checked and run before it ships.
Supported Worldwide
Dispatched across India and exported, with spares on request.

Specifications

8Specifications

Dynex 5M Trackless Welding Carriage — Technical Data

PARAMETERDYNEX 5M
Travel
ModelDynex 5M
TypeTrackless welding carriage with oscillator
Drive systemFour-wheel drive
Welding (travel) speed150 – 2000 mm/min
Proceeding angle10°
Oscillation
Weave patternsStraight, trapezoid, triangle, square, fast zig-zag
Oscillating motorBrushed motor
Swing speedAdjustable, 0 – 100
Swing angle±15°
Left / right pause time0 – 2.5 s
Deviation setting0 – ±8°
Oscillation precision±0.1 mm
Torch
Torch adjustment60 mm (up / down, forward / backward)
Working angle adjustment±45°
Torch clamp diameter16 – 50 mm
General
Power supply220/230 V, 50/60 Hz
Power17 W
ProtectionIP54 (dust and water resistant)
Auto-stopInductive stop switch
ControllerDigital, detachable
Dimensions (L × W × H)59 × 38 × 41 cm
Gross weight16.5 kg

Specifications are subject to improvement without notice; the quotation and test certificate supplied with the machine are the governing documents. Warranty terms are stated on the quotation / invoice.

Video

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Question & Answers

9FAQ

Trackless Welding Carriage — FAQs

Q.What is a trackless welding carriage?
A motorised carriage that carries the welding torch along the joint without a rail or track. The Dynex 5M trackless welding carriage drives on the workpiece with four-wheel drive and oscillates the torch for a consistent weave.
Q.Which weave patterns can the Dynex 5M run?
Five: straight, trapezoid, triangle, square and fast zig-zag. Swing speed, swing angle (±15°), left and right pause (0–2.5 s) and deviation (0–±8°) are adjustable.
Q.What travel speed range does it have?
From 150 to 2000 mm/min, set on the digital controller.
Q.Will it fit my MIG torch?
The torch clamp takes torches from 16 to 50 mm diameter, with 60 mm of up/down and forward/backward adjustment and ±45° working angle adjustment.
Q.Does it stop by itself at the end of the weld?
Yes. An inductive stop switch stops the carriage at the end of the weld path.
Q.Which welding positions and jobs is it for?
Fillet, vertical, horizontal and multi-position welding on stiffened plates, ribbed plates, tank fillets and steel beams — in shipbuilding, bridges and petrochemical fabrication.
Q.What power does it need?
The carriage runs on 220/230 V, 50/60 Hz and draws 17 W. It is IP54 rated against dust and water.
Q.How do I get the Dynex 5M price and delivery time?
Request a quote on this page or message +91 88008 82983 on WhatsApp with your joint type, plate thickness and welding process. You will receive a GST quotation with delivery time, usually the same working day.
Send us your joint, plate thickness and process — we will suggest the set-up and quote today.

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Dynex 5M Trackless Welding Carriage – Best Weaving Automation for Fillet Welds

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