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Brand: Weldotherm
Weldotherm STE 82-12 Standard Europa Heat Treatment Unit
Description
A 12-channel PWHT unit with individual TC80 controllers
The Weldotherm STE 82-12 is a STANDARD EUROPA series heat treatment unit for preheating and post-weld heat treatment with resistance heating elements. It delivers 82 kW to 12 independent channels, each driven by its own TC80 program controller, which shows setpoint and actual value at the same time on two displays. Each TC80 stores six heat-treatment profiles that can be linked into longer sequences. A touchscreen TC1000 controller is offered as an alternative.
The 30 V and 60 V outputs feed ceramic pad heaters of either voltage, and the unit is built for site work on pipework, vessels and structural welds.
Technical specifications
| Parameter | Specification |
|---|---|
| Manufacturer / model | Weldotherm / STANDARD EUROPA STE 82-12 |
| Control loops | 12 |
| Current per channel | 6 x 90 A / 6 x 135 A |
| Voltage per channel | 30 V AC / 60 V AC |
| Power at 100% duty cycle | 82 kW |
| Power requirement | 400 V, 119 A or 500 V, 95 A |
| Program controllers | 12 x TC80 or 2 x TC1000 |
| Control range | -20 to +1,200 °C |
| Temperature sensors | type K (NiCr-Ni) via thermopanel |
| Recorder | 6- or 12-channel chart recorder, 180 mm paper (AH47/6-12); paperless recorder optional |
| Weight | 490 kg |
| Dimensions (W x H x D) | 1,150 x 1,350 x 900 mm |
| Protection / ambient | IP22 / -20 to +40 °C, max. 75% RH |
STANDARD EUROPA range
The series runs from 45 kW to 130 kW in 6- and 12-channel versions:
| Model | Channels | Current per channel | Power | Weight |
|---|---|---|---|---|
| STE 45-6 | 6 | 135 A | 45 kW | 380 kg |
| STE 70-6 / 70-12 | 6 / 12 | 180 A / 90 A | 70 kW | 410 / 445 kg |
| STE 82-6 | 6 | 225 A | 82 kW | 450 kg |
| STE 100-6 | 6 | 270 A | 100 kW | 570 kg |
| STE 100-12 | 12 | 135 A | 100 kW | 600 kg |
| STE 130-6 / 130-12 | 6 / 12 | 360 A / 180 A | 130 kW | 590 / 640 kg |
Recording the cycle and choosing between STE and VAS
The standard recorder for the series is the Weldotherm AH47 paper recorder, which prints on 180 mm wide folding paper at a feed adjustable from 1 to 1,500 mm/h (60 mm/h as delivered) and prints each channel every 5 seconds. It accepts type K and many other thermocouple types, so the chart can serve as the heat-treatment record required by the welding procedure. A paperless screen recorder with CF card and USB can be fitted instead.
The STANDARD EUROPA and VAS series share power ratings, outputs and safety features: emergency-stop main switch, secondary RCD, phase control, individual circuit protection and transformer over-temperature shutdown. The difference is control: the STE uses one TC80 per channel (or TC1000), while the VAS uses DIGIT 700 or DIGIT 1000 controllers. Recorders with CF card, USB and RS232/485 or Ethernet are options on both.
Documents and quotation
The Weldotherm STE series datasheet is attached; related items are in Induction Heating & Preheating. For a quotation, state channels, power, controller, recorder and supply voltage.
Datasheets & Documents
- Datasheet Weldotherm STE series datasheet (rev. 04-2025) Download
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About brand
WELDOTHERM Gesellschaft für Wärmetechnik mbH, based in Essen, Germany, manufactures equipment for the controlled heat treatment of welds and has worked in this field for more than 40 years. Its range covers resistance and induction heat treatment units, heating elements and inductors, thermocouples, and measuring and control technology for site and workshop use. Seven Star LLC is an independent supplier in Muscat that lists the WR 10,5 inverter unit and sources Weldotherm equipment for preheating and post-weld heat treatment.
Weldotherm heat treatment units
The resistance range runs from the single-channel WR 10,5 inverter, which weighs about 18 kg, to the multi-channel STANDARD EUROPA and VAS series with 2 to 12 control zones for 30 V and 60 V heating elements. The VAI series uses induction, generating heat in the material itself. All units are used with Weldotherm heating mats, cables and Type K thermocouples.
Ordering Weldotherm equipment: what we need
State the unit type, the number of control channels, the site mains voltage and the voltage class of the heating elements you already use. For heating elements, give the type, voltage and dimensions. We check the configuration against Weldotherm datasheets and provide them on request.
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Frequently Asked Questions
How many channels does the Weldotherm STE 82-12 have?
12 independent control loops.
What controller does the STE 82-12 use?
One TC80 per channel, each storing six linkable profiles, or TC1000 controllers.
What heater voltage does the STE 82-12 supply?
30 V AC and 60 V AC.
What is the power of the STE 82-12?
82 kW at 100% duty cycle.
What recorder is fitted to the STE 82-12?
A 6- or 12-channel chart recorder with 180 mm paper; paperless optional.
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