depta1 box


Standard foot operation​

depta nxt box

Depta nx / nxt

Foot and pneumatic cylinder operation​

is a new model of one of the most popular high frequency welding machines


Multipurpose, universal high frequency welding machine

Original DEPTA is the smallest machine in a large family of ZEMAT TG HF welders. This universal high frequency welder is robustly constructed and designed for accuracy and long life, and features a steel head mounting slide formed with a double “V” mechanism.


Easy action through foot pedal

DEPTA is a universal, high frequency welding machine and can be used in various industries. For seaming type work, a small tool mount is recommended to give good visibility and access to the work area. For other applications a large mount can be supplied giving rigid support over a wide tool area. Facilities are also available to increase the throat space, where excess materials have to be positioned behind the tooling.

DEPTA is widely used in medical, automotive and clothing industries for welding small add-on parts, like tubing, air and fluid valves, hooks, grommets, plates, etc. DEPTA have a high frequency power output from 0.5 to 4kW. The machine is a perfect tool for auxiliary production where precision, manual approach, durability and strength are the keys.


with unique foot and pneumatic operation

Depta NX
Depta NXT
Depta NX1

Touch screen HMI

Depta NX2

Standard work table or gooseneck for different needs

Depta NX3

Downstroke height adjustment with manual knob

Pneumatic pressure with foot pedal operation

New generation of small, multipurpose foot/pneumatic High Frequency welders with switchable work table and gooseneck support. Precision production jobs require small footprint, tailor made, compact HF welding and sealing equipment, where quick change-over is required. In our machines we implement the traditional radio frequency HF technology with ATS™ (Auto-tuning) or Solid State RF Generator with DMS™ (Dynamic Matching System) for high control and precision of output power 1.2-5 kW.

The proper tooling is as important as the machine itself. We design and make flat die or 3D tooling for complex welding shapes and multistage sealing operation to satisfy the most demanding production requirements. Universal use in various industries from medical, military to automotive applications where speed, precision and HF weld accuracy is the key.

DEPTA NX– Standard Triode powered HF welder

DEPTA NXT– Solid State Transistor powered HF Welder

Why is our technology unique?

WCS™ Weld Check System
Verifying and signaling the HF/RF weld preset parameters / end cycle process. Collects all data pertaining to each weld cycle for remote diagnosis of any issues or problems with machine setup or power output.
QuickGrip™ System
System for quick and easy replacement of electrodes. The electrodes are attached with pneumatic clamps activated from the control panel.
AntiFlash™ System
Ultra-fast Solid-State ARC sensor & full output overload protection.
ZTG iCOM™ System
Built-in VPN client and VNC server making up the internet interface allowing remote control of machine parameters, weld cycle and diagnostics or software upgrade.
Safety guards
Special guards with safety limit switches designed for protection against electromagnetic radiation (compliance with EN and EMC standards).


ZEMAT TG High Frequency welding machines are designed and built to very strict European Environmental and Safety regulations and have custom design solutions for weld and safety control.

ECO-Friendly HF Technology incorporated in the High Frequency machines contains:

Low energy consumption

| Energy efficient ECO HF generators with microprocessor control of output power
| Low power consumption and real time power output recognition
| 90% less power consumption than with traditional heat powered welding systems

AutoTuning System™

| Dynamic High-performance HF impedance matching
| Dynamic Auto Tuning and Arc protection unit
| Ultra-fast reflected power control

Highly efficient and stable HF generators

| RF power output efficiency at 70-90%
| Harmonic distortions eliminated by frequency band filters
| Very limited heat dissipation preventing overheating

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