Model 8 Series Weld Heads


Model 8 Series Weld Heads

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The Model 8 series orbital weld heads are designed for fusion (TIG) welding of tube, thin-wall pipe and fittings through the range of 0.25 in. (6 mm) to 6.625in. (168 mm) OD (outside diameter) and wall thicknesses up to 0.160in. (4 mm). The narrow width of these heads makes them ideal for fitting-to-fitting welds and other limited-clearance applications.

The Model 8 series weld heads incorporate a two-sided clamping mechanism - precision machined and designed to compensate for significant diameter variances while ensuring positive clamping force and concentricity. The insert sizes accommodate an extensive range of applications and all Model 8 series weld heads are fitted with water-cooling capability - for heavy wall material welding and/or high duty-cycle requirements.



  • Fitting support mandrel - to facilitate the welding of short sanitary ferrules without pre-tacking
  • Bench mount bracket - to provide secure support when not in use or when bench welding
  • Clamp inserts - available in imperial and metric sizes, as well as non-standard sizes for custom applications
  • Extension cables - available in 25 ft. (7.6 m), 50 ft. (15.2 m), and 75 ft. (22.8 m) lengths

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Call our Product Information & Support Line anytime: 1-800-ESAB-123 (1-800-372-2123)

ESAB Welding & Cutting Products
2800 Airport Road
Denton, TX 76207
Customer Care: 1-800-426-1888

Welding Consumables
801 Wilson Avenue
Hanover, PA 17331

Colfax Corporation
420 National Business Parkway
5th Floor
Annapolis Junction, MD 20701

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Part Numbers : Model 8 Series Weld Heads
M8-2000 Weld Head Top Assy 13080108-01 FIND A DISTRIBUTOR
M8-2000 Weld Head Top Assy 25ft/7.5m-Cable 13080108-03 FIND A DISTRIBUTOR
M8-4000 Weld Head Top Assy 13080100-01 FIND A DISTRIBUTOR
M8-4000 Weld Head Top Assy 25ft/7.5m-Cable 13080100-02 FIND A DISTRIBUTOR
M8-6625 Weld Head Top Assy 13080119-01 FIND A DISTRIBUTOR