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Machining Operations

Close up of a machining center working on a NAB centrifugal casting piece LBI can produce parts to customer requirements for either rough or fully machined pieces, using various machining operations.

Our integrated mechanical workshop (more than 100 machine tools) allows us to machine centrifugally cast (or spun cast) pieces on conventional or high precision C.N.C. lathes.

 Machine industrielle type fraiseuse aléseuse numérique 5 axes TOS à commande numérique pour le fraisage de bassins d’huile, de rainures de clavette, le perçage et à l’alésage de couronnes ou tube[de] Automatische fünfachsige Bohrmaschine TOS für das Fräsen von Keilnuten, Ölbecken, Ringe, Rohren [en]numerically controlled 5 axes milling and drilling machine TOS for grinding of oil groves, keyways, rings, tubes A specific workshop manages the rough machining, which consists in eliminating the "skin" of centrifugally cast (or spun cast) parts. All manufactured parts undergo this machining operation, which guarantees a high level of metallurgical quality.

The surface obtained, further to this operation, constitutes the basis for an exhaustive visual control and, if necessary, for other non-destructive controls: dye penetrant testing (colored and fluorescent), ultrasonic inspection (large range of search units), magnetic particles inspection and X-ray inspection (subcontracted to "Institut de Soudure" in Ennery Lorraine) depending on the specifications of our customers.


Parallel lathes Up to Ø 1100 mm; Lenght 6000 mm

Vertical lathes Up to Ø 5600 mm; Lenght 4000 mm


Parallel lathes

  • Up to Ø 500 mm; Length 1000 mm
  • Up to Ø 1200 mm; Length 8000 mm
  • Up to Ø 1060 mm; Length 10000 mm

Vertical lathes

  • Up to Ø 1250 mm; Length 600 mm
  • Up to Ø 2200 mm; Length 1750 mm
  • Up to Ø 4100 mm; Length 2000 mm


  • Length = 3400 mm; Depth = 1500 mm; height = 900 mm; Maximum weight = 12 tonnes


Machined bearing housing in bronze Machining of bowl in stainless steel Machining of a roller in stainless steel for zink pot galvanizing Stainless-steel rotary feeder on a palette Large conical aluminum cupro ring on a CNC lathe Worm gear wheel in front of a machining center Centrifugal moldings in the foreground and a machining lathe in the machining workshop in the background Overview of the machining work shop CNC machining center programmed by an employee Machining of an aluminum coil body Machining a liner on a parallel lathe Parts in brass controlled in an adapted gauge View of spiral chips in stainless steel Zoom on aluminium chips Photo of a completed flanged bush piece made of bronze Big stainless steel chips Flanged bush after rough machining in the machining workshop Flanged bush outsite Small parallel lathe machining a small flanged liner Machining of long stainless steel tubes Parallel machining of various tubes stainless steel casting View of all the machines in the machining hall Double-spindle lathe for large scale production machining of centrifugal casting up to 700mm diameter Everising H-560-HA New HNK 38-40 parallel lathe for 1000mm diameter and 10000mm long centrifugal casting parts Montage du tour 3 axes CN HNK 38-40 pour usinage de bague jusqu'à 4m de diamètre [de]Montage der 3-Achsen-Drehmaschine CN HNK 38-40 für Ringbearbeitung bis 4m Durchmesser [en] Installation of the 3-axis lathe CN HNK 38-40 for ring machining up to 4m diameter