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Forged sectional fligthing
Continuous flighting with variable
   Thickness
Continuous flighting with continuos
   thickness
Complete conveying screws
Special screws
Vertical conical augers
Helicoidal rods for horizontal
   and vertical drilling
 


AUGERS & SPIRAL FLIGHTING DIVISION
METALLIC FLIGHTS DIVISION

 

Over time, MOTRIDAL has perfected the production of metal spirals through careful research in every field in which these components are used. In particular, well drilling has become so important that significant resources are specially dedicated to this sector. Flexibility, immediate execution and, of course, the renowned skill of our technicians are the strong points of Motridal in this sector, in which drilling shafts and joints are the company's leading products.


MOTRIDAL has more than forty years of experience in the construction of metal screws and has become Europe's leader in the third-party production of screws, both unmounted and mounted on shafts. Motridal produces both forged and continuous screws for any requirement and in any size up to an external diameter of 3500 mm and 80 mm in thickness. Production includes tapered screws, cogged screws, special screws built upon request or according to the customer's plans, and drilling spindles. High construction quality and extremely short delivery times are the consistent strong points of the company

   
 

FORGED SECTIONAL FLIGHTING
for any requirement and application, characterised by accuracy, ease-toassembly and wear resistance. The sectors can be manufactured in large diameters (up to 3500 mm) and great thicknesses (up to 80 mm). The materials more commonly used are:

- Fe360 B (S235JR), Fe430 B (S275JR), Fe510 B (S355JR), for normal applications.

- AISI 304 (1.4301), AISI 316 (1.4401) and 400-class, for food sector and for corrosive products.

- Antiwear steels (T1A/Naxtra M70, Hardox 400, Creusabro 321 / 4800 and others) for abrasive products and other special uses.

 
 

CONTINUOUS FLIGHTING
formed from variable thickness metal strip, in carbon steel or stainless steel, standard unit length = 3 meters (customized on request), tolerances in accordance with the international standards. The measures most in demand are normally available in stock

 
   
 
 

CONTINUOUS FLIGHTING
formed from even thickness flat bar, in carbon steel and stainless steel, for shaftless screw conveyors with high filling factors, with great thickness for heavy duties, for abrasive and/or corrosive materials and other special applications.

 
 

COMPLETE CONVEYING SCREWS
consisting of pipe shaft with cylindrical or conical flighting, inclusive of machining, on customer request.

 
   

 
SPECIAL SCREWS

SPECIAL SCREWS, supplied on customer request (or design), toothed or drilled, special-shaped, with generating line not perpendicular to the pipe shaft, etc.


VERTICAL CONICAL AUGERS

for mixing feeders, with (or without) pin and flange for reduction gear installation, right or lefthand, with standard pitch (customized on request). The holes for the cutters are bored according to the customer request. The blades are usually made in Fe510 B (S355JR) or, if requested, in antiwear steel.


HELICOIDAL RODS FOR HORIZONTAL AND VERTICAL DRILLING

with hexagonal coupling or conical thread, with cylindrical or hexagonal inner tube, for normal or heavy-duty drilling, offered in an extensive range of lengths, diameters and flight configuration, according to the end-user requirements.




   
 

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