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    MODUDRILL
    NPA 07/2019


    SOLIDMILL

    New Modular Exchangeable Drilling Heads for Large Diameter Deep Drilling


    Highlights
    ISCAR is expanding large diameter drilling options with the new MODUDRILL line, which features two different types of exchangeable heads covering a 33 to 40 mm drilling range.
    The drilling heads are attached to 400 mm long drill bodies.


    The new MODUDRILL family uses only two drill bodies to cover the full range: one for 33-36 mm and the other for 37-40 mm. Each drill body can carry any one of the two head types. The two available drilling heads were designed for different applications - cutting conditions, required hole accuracy and surface finish.

    MD-BODY
    • Modular bodies that can carry different types of drilling heads
    • Produced from high strength steel for high durability
    • Small core with central coolant hole for efficient chip evacuation.
    • New patented connection withstands high torque
    • High flute helix with polished surface provides a smooth and easy chip evacuation for chips of all sizes

    Designations
    Shank Size
    Length
    For head range


    MD-DFN Modular Heads
    • Carrying HFP-IQ CHAMIQDRILL solid carbide heads
    • Robust structure with concave cutting edge design enables drilling at high feed rates, providing very accurate IT8-IT9 hole tolerance
    • Unique pocket design enables many drilling head indexes
    • Special axial stopper prevents the drilling head from being extracted during retraction
    • Large radial head stoppers provide high resistance to cutting forces, enabling very high cutting conditions


    HFP-IQ Drilling Heads
    • Available in a 33-40 mm diameter drilling range, according to the standard items list
    • Unique self-centering geometry enables long overhang without the need for a pilot hole operation
    • Produced from grade IC908 – a PVD coating on a fine submicron grain substrate
    • Suitable for steel and cast iron (ISO P/K) material groups

    Designations
    Modular Head
    Modular head size
    Drilling Head
    Drilling head size




    MD-DR-DH Modular Heads
    • Known and proven design combined with the advantages of a modular system
    • Carry standard SOMX indexable inserts with 4 cutting edges, providing an economical solution
    • Standard indexable, double-ended guide pads
    • Suitable for low to medium feed machining


    Designations
    Modular Head
    Guide pad size
    Peripheral Insert size
    Intermediate Insert size
    Inner Insert size
    Modular head size
    Inner/Intermediate/Peripheral Inserts
    Grade
    Chip breaker
    Corner radius
    Inner size
    Guide Pads
    Grade
    Pad radius
    Pad length
    Pad width




    MD-BODY
    Modular Drill Bodies, Each Can Carry a Variety of Exchangeable Drilling Heads with Different Diameters


    1) Cutting diameter minimum (2) Cutting diameter maximum (3) HEAD connection size


    MD-DFN-HEAD
    Exchangeable Drilling Heads Carrying CHAMIQDRILL Solid Carbide Inserts


    1) Cutting diameter minimum • Do not mount smaller drilling heads other than the specified range of the drill body (2) Cutting diameter maximum
    (3) Seat size code (4) Master insert identification


    MD-DR-DH-HEAD
    Exchangeable Drilling Heads with Guide Pads, Carrying Square Inserts


    (1) Master insert identification (2) Master insert identification 2 (3) Inner insert





    Flow Rate vs. Pressure & Drill Diameter


    Head and Body Assembly



    MD-DFN Head Assembly

    Important:
    For MD-DR-DH Head

    • A short pre-hole 1XD deep (minimum)with H8 hole tolerance should be prepared to guide the long drill (an endmill can be used)
    • Use HD chip breaker for internal insert


    MD-DR-DH Inserts Assembly

    For MD-DFN Head
    Max allowed Δ = 0.04 mm

    Axial runout & Radial runout


    Drilling Limitations


    Drill Diameter (mm)Pressure (bar)Flow Rate (liter/min)
    332060
    342060
    352060
    362060
    372060
    382070
    392070
    402070
    • Internal coolant supply only


    MD-DR-DH Cutting Parameters


    MD-DFN Cutting Parameters


    The NPA07-2019's pdf file: View (PDF) or Download (ZIP)
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