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    Series
    B1.4843

    Bore clamp

    Cartridge type,without centring function
    double acting, for bore hole diameter 7.8 - 17.7 mm
    max. operating pressure 250 bar
    Bore clamp
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    Operating instructions
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    Information Series
    Description
    B 1.4843 Bore Clamp

    The bore clamp is a double-acting pull-type cylinder. An exchangeable clamping bushing is fixed to the piston.
    The four segments of the clamping bushing are radially expanded with spring force  by a pyramid-shaped clamping bolt. Thus the expansion force is always the same and independent of the hydraulic clamping pressure.
    The workpiece is also held without hydraulics by means of the expanded clamping bushing. Both pull-down of the workpiece and unclamping of the clamping bushing are hydraulically controlled.
    Connecting the positive air pressure protection, the clamping bushing is protected against swarf and coolants. 
    In the hardened support surface for the workpiece there is a bore hole for the pneumatic seat check.

    Video
    Products (12)
    body design
    cartridge type (12)
    type
    bore clamp (12)
    functioning
    double acting (12)
    max. operating pressure [bar]
    250 (12)
    hydraulic ports
    for drilled channels (12)
    centring function
    without centring (12)
    min. clamping diameter [mm]
    max. clamping diameter [mm]
    max. low-clamping force [kN]
    seal
    FKM (12)
    seat check
    pneumatic (12)
    connection for positive air pressure protection
    with (12)
    Item no. CAD datatypefunctioningmax. operating pressure [bar]hydraulic ports
    Item no.
    4318131A
    CAD data
    type
    bore clamp
    functioning
    double acting
    max. operating pressure [bar]
    250
    hydraulic ports
    for drilled channels
    Properties
    Item no.
    4318131B
    CAD data
    type
    bore clamp
    functioning
    double acting
    max. operating pressure [bar]
    250
    hydraulic ports
    for drilled channels
    Properties
    Item no.
    4318131C
    CAD data
    type
    bore clamp
    functioning
    double acting
    max. operating pressure [bar]
    250
    hydraulic ports
    for drilled channels
    Properties
    Item no.
    4318131D
    CAD data
    type
    bore clamp
    functioning
    double acting
    max. operating pressure [bar]
    250
    hydraulic ports
    for drilled channels
    Properties
    Item no.
    4318131E
    CAD data
    type
    bore clamp
    functioning
    double acting
    max. operating pressure [bar]
    250
    hydraulic ports
    for drilled channels
    Properties
    Item no.
    4318231F
    CAD data
    type
    bore clamp
    functioning
    double acting
    max. operating pressure [bar]
    250
    hydraulic ports
    for drilled channels
    Properties
    Item no.
    4318231G
    CAD data
    type
    bore clamp
    functioning
    double acting
    max. operating pressure [bar]
    250
    hydraulic ports
    for drilled channels
    Properties
    Item no.
    4318231H
    CAD data
    type
    bore clamp
    functioning
    double acting
    max. operating pressure [bar]
    250
    hydraulic ports
    for drilled channels
    Properties
    Item no.
    4318231K
    CAD data
    type
    bore clamp
    functioning
    double acting
    max. operating pressure [bar]
    250
    hydraulic ports
    for drilled channels
    Properties
    Item no.
    4318231L
    CAD data
    type
    bore clamp
    functioning
    double acting
    max. operating pressure [bar]
    250
    hydraulic ports
    for drilled channels
    Properties
    Item no.
    4318131A
    type
    bore clamp
    functioning
    double acting
    max. operating pressure [bar]
    250
    hydraulic ports
    for drilled channels
    centring function
    without centring
    body design
    cartridge type
    min. clamping diameter [mm]
    7.8
    max. clamping diameter [mm]
    8.2
    max. low-clamping force [kN]
    5.1
    seal
    FKM
    seat check
    pneumatic
    connection for positive air pressure protection
    with
    Item no.
    4318131B
    type
    bore clamp
    functioning
    double acting
    max. operating pressure [bar]
    250
    hydraulic ports
    for drilled channels
    centring function
    without centring
    body design
    cartridge type
    min. clamping diameter [mm]
    8.3
    max. clamping diameter [mm]
    9.2
    max. low-clamping force [kN]
    5.1
    seal
    FKM
    seat check
    pneumatic
    connection for positive air pressure protection
    with
    Item no.
    4318131C
    type
    bore clamp
    functioning
    double acting
    max. operating pressure [bar]
    250
    hydraulic ports
    for drilled channels
    centring function
    without centring
    body design
    cartridge type
    min. clamping diameter [mm]
    9.3
    max. clamping diameter [mm]
    9.7
    max. low-clamping force [kN]
    5.1
    seal
    FKM
    seat check
    pneumatic
    connection for positive air pressure protection
    with
    Item no.
    4318131D
    type
    bore clamp
    functioning
    double acting
    max. operating pressure [bar]
    250
    hydraulic ports
    for drilled channels
    centring function
    without centring
    body design
    cartridge type
    min. clamping diameter [mm]
    9.8
    max. clamping diameter [mm]
    10.2
    max. low-clamping force [kN]
    5.1
    seal
    FKM
    seat check
    pneumatic
    connection for positive air pressure protection
    with
    Item no.
    4318131E
    type
    bore clamp
    functioning
    double acting
    max. operating pressure [bar]
    250
    hydraulic ports
    for drilled channels
    centring function
    without centring
    body design
    cartridge type
    min. clamping diameter [mm]
    10.3
    max. clamping diameter [mm]
    11.2
    max. low-clamping force [kN]
    5.1
    seal
    FKM
    seat check
    pneumatic
    connection for positive air pressure protection
    with
    Item no.
    4318231F
    type
    bore clamp
    functioning
    double acting
    max. operating pressure [bar]
    250
    hydraulic ports
    for drilled channels
    centring function
    without centring
    body design
    cartridge type
    min. clamping diameter [mm]
    11.3
    max. clamping diameter [mm]
    11.7
    max. low-clamping force [kN]
    9.8
    seal
    FKM
    seat check
    pneumatic
    connection for positive air pressure protection
    with
    Item no.
    4318231G
    type
    bore clamp
    functioning
    double acting
    max. operating pressure [bar]
    250
    hydraulic ports
    for drilled channels
    centring function
    without centring
    body design
    cartridge type
    min. clamping diameter [mm]
    11.8
    max. clamping diameter [mm]
    12.7
    max. low-clamping force [kN]
    9.8
    seal
    FKM
    seat check
    pneumatic
    connection for positive air pressure protection
    with
    Item no.
    4318231H
    type
    bore clamp
    functioning
    double acting
    max. operating pressure [bar]
    250
    hydraulic ports
    for drilled channels
    centring function
    without centring
    body design
    cartridge type
    min. clamping diameter [mm]
    12.8
    max. clamping diameter [mm]
    13.7
    max. low-clamping force [kN]
    9.8
    seal
    FKM
    seat check
    pneumatic
    connection for positive air pressure protection
    with
    Item no.
    4318231K
    type
    bore clamp
    functioning
    double acting
    max. operating pressure [bar]
    250
    hydraulic ports
    for drilled channels
    centring function
    without centring
    body design
    cartridge type
    min. clamping diameter [mm]
    13.8
    max. clamping diameter [mm]
    14.7
    max. low-clamping force [kN]
    9.8
    seal
    FKM
    seat check
    pneumatic
    connection for positive air pressure protection
    with
    Item no.
    4318231L
    type
    bore clamp
    functioning
    double acting
    max. operating pressure [bar]
    250
    hydraulic ports
    for drilled channels
    centring function
    without centring
    body design
    cartridge type
    min. clamping diameter [mm]
    14.8
    max. clamping diameter [mm]
    15.7
    max. low-clamping force [kN]
    9.8
    seal
    FKM
    seat check
    pneumatic
    connection for positive air pressure protection
    with
    Accessories (16)
    Item no. CAD data Description
    Item no.
    0431704D
    CAD data
    /
    Description
    Clamping set for bore clamps size 1, Ø 9.8 - 10.2 mm for bore clamp 4318-1X0D as per data sheet B1.4841
    Item no.
    0431704E
    CAD data
    /
    Description
    Clamping set for bore clamps size 1, Ø 10.3 - 11.2 mm for bore clamp 4318-1X0E as per data sheet B1.4841
    Item no.
    2010911
    CAD data
    /
    Description
    Screw tools for threaded bushing for bore clamps size 1 as per data sheet B1.4841
    Item no.
    2010912
    CAD data
    /
    Description
    Screw tools for threaded bushing for bore clamps size 2 as per data sheet B1.4841
    Item no.
    3000274
    CAD data
    /
    Description
    O-ring 3.68 x 1.78 mm - FKM as per data sheet B1.4842
    Item no.
    3000876
    CAD data
    /
    Description
    O-ring 3.68 x 1.78 mm - NBR as per data sheet B1.4842
    Application examples
    Application example 1

    Machining of an oil sump from 5 sides

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    Please note: Our CAD data are generally simplified data and primarily reflect the outer contour and connections of the product (see also Terms of use). Please always refer to the relevant catalogue sheet for the exact dimensions with tolerances, in particular the information on mounting holes or attachments such as special clamps.