
Automation technology and special machinery for the pipe industry, drive technology and HF induction welding systems.

Anahita GmbH
Bielefeld · Wellensiek 111New on Amplifa
Automation and special machinery since 2011
Anahita GmbH, headquartered in Bielefeld, has been active since 2011 as a service provider and manufacturer in the field of industrial automation and special machinery. The service portfolio covers PLC and SCADA/HMI programming, control cabinet construction in accordance with DIN EN 61439, safety-oriented control technology in accordance with DIN EN ISO 13849-1, drive and motion control technology, retrofit, commissioning, as well as CAD engineering and technical simulation. In special machinery manufacturing, the company produces induction pipe welding systems (HF-ERW) with outputs of 60 to 1400 kW, ERW pipe production lines, flying cold circular saws, automatic pipe packaging machines, induction annealing and heat treatment systems, and electric arc spraying systems. In addition, the company develops its own DC converters (PL/X) and controllers for slip-ring motors (JL/X) up to 1 MW. Materials processed include, among others, low-carbon and high-strength steel, stainless steel, aluminium, brass, copper and zinc. Customers come from the steel and pipe industry, hot rolling mills, the oil and gas sector, construction and shipbuilding, offshore wind energy and building services engineering.
- Site
- Bielefeld
- Processes
- Induction pipe welding systems (HFI/high-frequency longitudinal seam welding), HF welding system SCR series (thyristor+MOSFET), HF welding system IGBT+MOSFET series, HF welding system SICFET series (IGBT+SiC), High-frequency welding systems (thyristor and MOSFET technology), High-performance longitudinal seam welding machine (SiC semiconductor technology), High-efficiency resistance welder (IGBT and MOSFET, 200 kW), Heat treatment system for steel bars (induction heating, IGBT, 7-50 kHz)
- Materials
- Stainless steel, Aluminium, Low-carbon steel, High-strength steel, Brass, Copper, Zinc, Steel pipes (ERW)
- Founded
- 2011
- Industries
- Steel and pipe industry, Hot rolling mills, Oil and gas industry, Automotive industry, Aerospace, Construction industry
- 01
Consulting and engineering/layout planning
- 02
Mechanical engineering (CAD)
- 03
Control cabinet construction and electrical installation
- 04
Special machinery manufacturing and production
- 05
PLC/SCADA programming and drive technology
- 06
Assembly, commissioning and training
- 07
Service, maintenance and retrofit
Materials and Processes
Induction pipe welding
High-frequency longitudinal seam welding of steel pipes without filler material, pipe wall thickness 0.2–16 mm, diameters 8–420 mm.
Induction heat treatment
Seam annealing of stainless steel pipes and induction heating of steel bars at 7–50 kHz (IGBT).
Electric arc spraying
Wire spraying process for corrosion protection on steel structures, wire diameter 1.2–3.0 mm.
ERW pipe production lines
Roll forming and welding lines from coil preparation to flying cut-off, 15–27 roll stands.
DC converters PL/X
Programmable 4Q rectifiers for controlling DC motors from 5 to 980 kW.
PLC/SCADA programming
Control technology according to IEC 61131-3 with Siemens, Beckhoff TwinCAT and CODESYS incl. OPC UA/MQTT integration.
Location

Bielefeld
DEHeadquarters
- Control cabinet construction to DIN EN 61439
- EPLAN Electric P8
- Siemens Step 7 / TIA Portal
- Beckhoff TwinCAT
- CODESYS
- SolidWorks, AutoCAD, Fusion 360
- MATLAB/Simulink, PLECS, COMSOL
- NI LabVIEW
Systems and Machines






Inside the production




Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Induction pipe welding systems (HFI/high-frequency longitudinal seam welding)Joining | – | – | – | – | Stainless steel, Aluminium, Low-carbon steel, High-strength steel, Brass, Copper, Zinc |
| HF welding system SCR series (thyristor+MOSFET)Joining | – | – | – | – | Steel |
| HF welding system IGBT+MOSFET seriesJoining | – | – | – | – | Steel |
| HF welding system SICFET series (IGBT+SiC)Joining | – | – | – | – | Steel |
| High-frequency welding systems (thyristor and MOSFET technology)Joining | – | – | – | – | Steel |
| High-performance longitudinal seam welding machine (SiC semiconductor technology)Joining | – | – | – | – | Steel |
| High-efficiency resistance welder (IGBT and MOSFET, 200 kW)Joining | – | – | – | – | Steel |
| Heat treatment system for steel bars (induction heating, IGBT, 7-50 kHz)Heat treatment | – | – | – | – | Metals, Steel |
| Induction annealing system for stainless steel pipes (seam annealing)Heat treatment | – | – | – | – | Stainless steel |
| Inductive seam heat post-treatment / seam normalizationHeat treatment | – | – | – | – | Steel, Stainless steel |
| Electric arc spraying systems (wire spraying process)Surface | – | – | – | – | Zinc, Aluminium, Zinc alloy, Copper, Ternary metal, Carbon steel, Stainless steel |
| Automatic steel pipe packaging machine (bundling, strapping)Assembly | – | 6,000 – 12,000 mm × Pipe diameter up to 150 mm | up to 2,000 kg (package) | – | Steel |
| Flying cold circular saw (S series, length-synchronized cutting)Machining | ±2 mm (cut length) | – | – | – | Steel |
| Flying cold circular saw (C series, burr-free cut-off)Machining | – | – | – | – | Steel, Profiles |
| Pipe production line (ERW pipe line, roll forming and welding line)Forming | ±0.5% diameter deviation (sizing) | Pipe length 4 – 10 m | – | – | Steel |
| Forming section roll forming (15–27 roll stands)Forming | – | – | – | – | Steel |
| Sizing & straightening (calibrating and straightening)Forming | ±0.5% diameter deviation | – | – | – | Steel |
| Seam removal (scarfing, inside/outside)Machining | – | – | – | – | Steel |
| Automation technology: PLC programming, SCADA, HMIEngineering | – | – | – | – | – |
| Safety-oriented control technology (DIN EN ISO 13849-1)Engineering | – | – | – | – | – |
| Drive technology / motion control / drive synchronizationEngineering | – | – | – | – | – |
| Control cabinet analysis and construction (DIN EN 61439)Assembly | – | – | – | – | – |
| CAD services & mechanical engineering (SolidWorks, AutoCAD, Fusion 360)Engineering | – | – | – | – | – |
| Technical simulation & modeling (PLECS, MATLAB/Simulink, LabVIEW, COMSOL)Engineering | – | – | – | – | – |
| Retrofit and modernization of industrial plantsEngineering | – | – | – | – | – |
| Hot rolling mill automation (long products, DC/AC drives)Engineering | – | – | – | – | Slabs, Billets, Profiles |
| Commissioning of industrial furnacesEngineering | – | – | – | – | – |
25 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| DC converter PL/X 65 to 145 | Anahita PL/X 65-145 | – | 65-145 kW / 155-330 A | – | – |
| DC converter PL/X 5 to 50 | Anahita PL/X 5-50 | – | 5-50 kW / 12-123 A | – | – |
| DC converter PL/X 185 to 265 | Anahita PL/X 185-265 | – | 185-265 kW / 430-630 A | – | – |
| DC converter PL/X 275 to 440 | Anahita PL/X 275-440 | – | 275-440 kW / 650-1050 A | – | – |
| DC converter PL/X 520 to 980 | Anahita PL/X 520-980 | – | 520-980 kW / 1250-2250 A | – | – |
| Controller B6C three-phase bridge PLXD | Anahita PLXD | – | – | – | – |
| Controller for slip-ring motors JL/X 130 to 270 | Anahita JL/X 130-270 | – | 130-270 A | – | – |
| Controller for slip-ring motors JL/X 370 to 780 | Anahita JL/X 370-780 | – | 370-780 A | – | – |
| Controller for slip-ring motors JL/X 860 to 1680 | Anahita JL/X 860-1680 | – | 860-1680 A | – | – |
| Controller for slip-ring motors JL/XHD | Anahita JL/XHD | – | high power | – | – |
| Converter XLV for small DC motors | Anahita XLV 400-1200 | – | 4/8/12 A versions | – | – |
| High-frequency welding system QGT-1 (200 kW solid-state) | Anahita QGT-1 | – | 200 kW, output frequency 400 kHz | – | – |
| Induction pipe welding system SCR series | Anahita SCR | – | 60-1200 kW, pipe wall thickness 0.2-15 mm, diameter 8-398 mm | – | – |
| Induction pipe welding system HF series (IGBT+MOSFET) | Anahita HF | – | 60-1200 kW, pipe wall thickness 0.2-15 mm, diameter 8-398 mm | – | – |
| Induction pipe welding system SIC series (IGBT+SiC) | Anahita SIC | – | 60-1400 kW, pipe wall thickness 0.2-16 mm, diameter 8-420 mm | – | – |
| High-frequency welding system with thyristor and MOSFET (200 kW) | Anahita | – | 200 kW | – | – |
| High-performance longitudinal seam welding machine (SiC) | Anahita | – | 25-35% current savings vs. MOSFET | – | – |
| Resistance welder (IGBT and MOSFET) | Anahita | – | 200 kW | – | – |
| Induction heating machine for steel bars (super-audio, IGBT) | Anahita GCYP-30/7~50 to GCYP-800/7~50 | – | 31.5-920 kW, 7-50 kHz, 380-415 V | – | – |
| Electric arc spraying system / spray gun QDIII-250 | Anahita QDIII-250 | – | 16-20 kW, 300-500 A, spraying velocity >300 m/s, wire Ø 1.2-3.0 mm | – | – |
| Automatic steel pipe packaging machine | Anahita | – | 10-60 m/min, pipe length 6-12 m, Ø up to 150 mm, wall thickness 3.0-8.0 mm, 15 kW | – | – |
| Flying cold circular saw (S series) | Anahita Serie S | – | length-synchronized cutting | – | – |
| Flying cold circular saw (C series) | Anahita Serie C | – | continuous cut-off | – | – |
| Pipe production line (ERW pipe line) | Anahita | – | Round pipes Ø 50-127 mm / wall thickness 1.8-5.0 mm; square tubes 25×25-100×100 mm; rectangular | – | – |
| Induction annealing system for stainless steel pipes | Anahita | – | – | – | – |
Additional services
Reference customers
Company History
- 2011
Company founded as a partner in automation
- 2004
2nd generation HF welder (SCR+MOSFET) according to technical history
- 2014
High-efficiency seam welder of the 2.5th generation (IGBT+MOSFET)
- 2019
3rd generation SiC high-performance welder