Enclosed Weld Heads

In a design with enclosed weld heads, the weld joint receives a complete top layer coverage by the constant flow of shielding gas during the welding process. This avoids the colouring of the weld. This installation also requires a corresponding set of clamping jaws for each outer diameter of the tubes.
A cold wire feed mechanism is not possible. Weldings are performed in square butt with precise joint preparation (if applicable, a 90°saw cut is provided). Advantage: Enclosed welding heads are comparatively narrow and adapt easily to confined space conditions.

Enclosed orbital weld heads by Orbitec

Clever, customised with high precision


Our enclosed orbital weld heads stand for excellent welding results with a maximum customisation. For this reason, the implementation of Orbitec cassette-type weld heads meets the highest quality demands.

The Orbitec feed unit has a separated hose assembly and weld head, while multiple cassette weld heads can be operated with one feed unit only (exception: Microfitting weld head). This way a higher flexibility is obtained at reduced costs.

All Orbitec heads are also available in a gas or water coolant design and can be retrofitted as required (Exception: Microfitting weld head). But the gas coolant design of the heads fits the typical cassette welding head applications very well. When the thresholds of a cassette welding head are reached, the Orbitec cassette-type weld heads with water coolant design are recommended. Compared to other providers, the essential components for the heat input are sustainably cooled by a high water flow.

Little space?
No problem.

No problem.

  • Simple manual operation

  • Economical purchase

  • Resilient and reliable for its application

  • Comfortable use

  • Narrow design for confined space conditions

  • Perfect weld joints without nearly any colouring by annealing

Our changing system:
Clever, modular and ready to use.

Experience our variety of products by
using the arrows to explore the changing system.


Accessories for OSK

Offset Electrode Holder

From sizes OSK 53 upward

The maximum coverage of the weld head size is then reduced.

  • for electrode dia. 1.6mm | 0,063″
  • Item number: 1.3.3106
  • for electrode dia. 2.4mm |0,094″
  • Item number: 1.3.3101

Multi-position Electrode Holder

From sizes OSK 53

The maximum coverage of the weld head size is then reduced.

  • for electrodes dia. 1.6mm | 0,063″
  • Item number: 1.3.3102
  • for electrodes dia. 2.4mm | 0,094″
  • Item number: 1.3.3107

Gas-shield Collets

Gas-shield collets are particularly narrow and have an aluminium base jaw and a gas-shield cover of heat-resistant material for welding fittings, flanges, elbows, etc. In combination with offset or multi-position electrode holders the weld can be completed very close to one side of the weld head. Special wide clamps are available for a more secure fixture on request. Gas-shield collets are available for OSK weld heads size 53 / 76 / 115

(tube size range limited).

Gas-shield base collets and covers (1 set = 2 collets)

  • Gas-shield Base Collets for OSK 53
  • Item number: 1.2.3305
  • Gas-shield Base Collets for OSK 76
  • Item number: 1.2.3304
  • Gas-shield Base Collets for OSK 115
  • Item number: 1.2.3303

Gas-shield Cover Collets (GRP)

(adaptation by the customer)

  • for OSK 53
  • Item number: 1.2.3308
  • for OSK 76
  • Item number: 1.2.3307
  • for OSK 115
  • Item number: 1.2.3306


(prefabricated with through hole)

  • for OSK 53
  • Item number: 1.2.3309
  • for OSK 76
  • Item number: 1.2.3310
  • for OSK 115
  • Item number: 1.2.3311

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Orbitec GmbH
Willi-Brehm-Straße 8
D-63500 Seligenstadt

Telefon: +49 6182 / 78693-0
Fax: +49 6182 / 78693-10

E-Mail: info@orbitec-group.com
Web: www.orbitec-group.com

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