HighPULSE touch - Generation touch

Improving excellent welding technology to a higher level is our intention. For more than 55 years and for all applications, we have repeatedly set standards for the future of welding. Just like with the completely new developed series HighPULSE touch.

But what makes the new HighPULSE touch so unique?

It is the combination of: 

  •   Intuitive, language-independent operating concept
  •   All inclusive package with all common welding programs
  •   Excellent price-performance ratio

The product line comprises six devices:

HighPULSE touch 280 K

HighPULSE touch 350 K

HighPULSE touch 400 KW & DW

HighPULSE touch 450 KW & DW

Modern technology in two perfect product lines – Portable and industrial

HighPULSE touch – The best out of 55 years Merkle welding technology! The HighPULSE touch product line combines unique performance, high speed welding with overwhelming economical advantages and high precision through the Merkle TEDAC® system: the portable allrounders 280/350 K as well as the universal industrial units 400 KW/DW and 450 KW/DW

Best example for the innovational strength of Merkle is the TEDAC® system which offers continuous energy control and display directly on the welding torch. This makes it convenient for difficult accessible working areas.

Clear advantages of the HighPULSE touch series are the ease of use, the extensive functions and program variety as well as the continuous energy control at the TEDAC® torch.

Merkle HighPULSE touch. The revolution in PulseARC welding!

The portable HighPULSE touch 280/350 K (optional with water cooling unit and trolley).

The compact and mobile industrial line HighPULSE touch 400/450 KW with integrated water cooling system.

HighPULSE touch 400/450 DW with a separate wire feed unit for versatile use

The new HighPULSE touch comes with the welding programs for all common materials and Merkle special welding processes as a standard.

This makes welding particularly efficient and economical. Because in the ’All Inclusive Package‘ of the new HighPULSE touch all common welding programs and the Merkle welding processes DeepARC, ColdMIG and HighUP are already on board as a standard.

Programs for all common materials

As a standard the HighPULSE touch is equipped with welding programs for all common materials. Whether low alloyed steel, various stainless steel alloys and also programs for various aluminum alloys, everything are already included without extra charge.

DeepARC included. Faster welding with deep penetration and almost no spatter adherence.

ColdMIG included! Perfect for the welding of thin materials and high gap bridging capacity.

HighUP included! Vertical-up welding made easy!

Intuitive, language-independent operating concept

All control buttons of the welding unit are integrated in the power source and can be operated directly at the front. Arc length and wire feed speed can be adjusted at the seperate wire feed unit.

The complete operation panel is integrated in the separate wire feeder. This allows an easy operation of the Merkle HighPULSE touch with a maximum flexibility, regardless of the position of the welding machine.

The energy can be adjusted during the welding process at the TEDAC® torch.

PARAMETER DIVERSITY - A matter of setting

The ease of use continues in the various parameter settings. The desired values can be set at the individual positions by the tip of the finger. Even the parameter settings can be adjusted with the rotary switch and confirmed by the push of a button.

A multitude of additional parameters can be selected in the settings menu and adjusted as required.

Choke inductance, pulse shape, wire inching & burn-back, gas pre- & post-flow time as well as start & final current and downslope time are adjustable.


Excellent price-performance ratio

In addition to higher performance and individual, intuitive operation, the good price-performance ratio is another important aspect.

As an option, all the machines can be ordered with a transparent panel cover. Lockable for more security and protection.

A socket for MMA/stick electrode welding with electrodes up to 6 mm is installed. Hotstart, Arcforce and Antistick are coming as a standard. 

The integrated water cooling module is mounted service-friendly in a drawer and is operated by a powerful water pump.

The compact HighPULSE touch units 280 and 350 K with water cooling unit and trolley as an option

Compact and portable

HighPULSE touch power to go.

Portable with water cooling unit

As an option a water cooling unit can be installed.

For the most flexible use

Mountable to a trolley with gas bottle holder and optional drawer for accessories.


Merkle HighPULSE touch 280/350 K. - Universal in use!

The unit is manufactured to operate in metal fabrication companies, workshops, installation companies, on site and in automobile production and repair. It is lightweight and portable at a weight of only 33/36 kg. It can be used even in difficult working areas. With a suspension device the complete machine can be mounted to a swivel arm (option). All control functions are easy accessible direct at the working place, only the main supply cable has to be connected.


HighPULSE touch 400 and 450 KW for the use in the work shop or industrial use.

Mobile with integrated water cooling

Perfect for high power and long lasting duty cicles.

Drive motor directly mounted at the torch connector

Compact and accessible wire feeder.

Robust transport handles

Easier handling and better transport safety.


MERKLE HighPULSE touch 400/450 KW - with wire feeder integrated at the side!

Compact and clear structure.

By developing the welding units Merkle HighPulse touch 400/450 KW special importance was placed on a compact and clear design. This becomes apparent due to the arrangement of the wire feeder. The entire 4-roller wire feed system DV-26 and the wire coil are integrated on the side and very easily accessible through the top-opening housing flap.

The perfect connection - Merkle HighPULSE touch with Merkle welding torches

Merkle TEDAC® System

Perfect control via Merkle TEDAC® welding torches.

Push-Pull torches

Significant extension of the range of action and indispensable for aluminum wires also optional with TEDAC® control. 

Functions in TIG operation

Perfect ignition with LiftTIG and continuous settings for downslope as well as gas pre- / gas post-flow time

Perfect wire feeding with fast wire exchange: The Merkle wire feeder

Mobile version with 4 wheels.

Fold-out carrying handle, 2 x 4 rubber feet on the lower and long side.

Optional suspension device, electrically isolated.

Asymmetrical swiveling axis at the rear allows a wide working area. (optional)

Standard horizontal mounting.

Vertical mounting of the wire feeder can be achieved within seconds.