BW-Fixators® – Series EK:

BW-Fixators® of series EK are the affordably-priced alternative for series RK. Technical the two series are nearly identical but because of less material usage the series EK provides less possibilities of anchoring or installation of accessory.

When you need to align and (re-)adjust your machine most exact, the series EK is the right choice.

BW-Fixators® of series EK are easy to operate and precise in adjusting. The time for the alignment of e.g. a lathe will be reduced significant. If the machines needs to be re-adjusted because of foundation shifting or shrinkage, it can be done simply and fast. With a more selected range of accessory and anchoring methods the series EK covers nearly any application.

BW-Fixators® of series EK fulfil all requierments, conditions and properties appointed by the industry. All load-bearing and moveable parts including guiding surfaces are made from high-quality lamellar grey cast iron. To ensure the smooth handling of this parts over years, they are treated with molybdenum disulfide.

Downloads

Installation Varieties and Technical Data:
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Instruction for installation:
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Machine alignment with BW-Fixators®:
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Dimensions of series EK

GA Basic Unit

SizeLBHØDSWdchlb
II1781207275191527596100
III22015092902422366118120
IV2751801101103034468142145

Variant b : Machined bottom of the housing, the height is 2 mm less

SizeØf1Øf2g
II2125M16
III2531M20
IV3137M24

Technical Data of series EK

SizeDimEK IIEK IIIEK IV
Permissible maximum load ¹)N120.000240.000360.000
Recommended machine dead weight ²)N20.00040.00060.000
Spring constant in operation range ³)N/µm4.5008.00010.000
Torque at
adjusting screw
Specific-Nm / 10³ kg344,5
Maximum-Nm3696160
Security-Nm2,5-53,5-74-8
Vertical Adjustment per screw turnmm0,250,290,35
Weight of basic unitkg4,5916

1) BW-Fixators® are adjustable up to this load.
2) This is the standard factor for the determination of the BW-Fixator® size.
3) Found by applying a changing load equal to the recommended proportional machine load. The operating range will be covered when the machine has beenlevelled and bound down with the anchor bolts.

Formula for calculating the Resilience of BW-Fixators® Serie EK

Note:
The total of the forces a – e exerted must not
exceed the permissible maximum load
.

a) Proportional machine load
b) Tensile force exerted by anchor bolt
c) Dynamic forces
d) Changing loads (moving machine parts or workpieces)
e) Forces counteracting moments

Determination of BW-Fixator® size

The proportinal machine load recommended is a function of the net weight of the machine devided by the number of support points (BW-Fixators®).
For machinery with sizable variations in partial weight, it is the heaviest machine load that has to be devided by the number of bearing points and the resulting BW-Fixator® size has to be used everywhere under the machine.

 

Anchor bolts and studs

wes

Anchor bolt for direct connection of the machine to the foundation

        e  Foundations Clamping force
EKMLlfØdvonbisDTmax. N
IIM20400100401620908027081.000
IIIM24500135501930100100340115.000
IVM30600150552435135120410182.000

we/2

Split anchor bolt for direct connection of the machine to the foundation

      short e long e Foundations Clamping force
EKML1l1ØdSWLlvonbisLlvonbisDTmax. N
IIM20275431613140502050190805510010022081.000
IIIM243605919171656030602259065120120290115.000
IVM3045080241919070357025511075135150360182.000

Note: Specify dimension „e“ (thickness of machine leg) in your order.

due

Resin anchor
(Capsule and stud)

       e  Hole Clamping force*
EKMLSWfvonbisØDTmax. N
IIM20400134020902517027.000
IIIM24450175020702821037.000

*Concrete ≥ B 25

due/2

Split resin anchor
(Capsule and split stud)

    short e long e   Hole Clamping force*
EKMØdSWLlvonbisLlvonbisL1nØDTmax. N
IIM2016131405020501908055100240702517027.000
IIIM24191716560306022512065120290802821037.000

*Concrete ≥ B 25

Note: Specify dimension „e“ (thickness of machine leg) in your order.

ste

Short or long stud bolt for attaching the machine to the BW-Fixator®

     short e long e Clamping force
EKMØdSWfLlvonbisLlvonbismax. N
IIM1613103517055206020085659053.000
IIIM2016134017555203520585406581.000
IVM2419175021570205526012060100115.000

Note: Specify dimension „e“ (thickness of machine leg) in your order.

Other applications

le

Extended set screw on BW-Fixator® arranged inwards of the machine side

    Minimum Foundations
EKacSWlength lTubeL1B1H1
II50272214024x4804070
III50362217024x4804090
IV50463220038x510050100

led

Extended set screw on BW-Fixator® arranged inwards of the machine side
Fixing with Eye screw

 

    Minimum ledled-l  
EKacSWlength lTubeminmaxUmaxmaxUmaxØDT
II50272214024x42580≤50120≤9014120
III50362217024x42580≤40120≤8014120
IV50463220038x540120≤7014120

les

Extended set screw on flush-mounted BW-Fixator® arranged inwards of the machine side

    Minimum  Foundations
EKaBHlength lA1Z1B1H1X1
II6592591401402520080240
III72925918016030250100270
IV751369624020035300120320

p

Spherical washer set for non-parallel bearing surfaces

EKØDHØdØb
II (M16)4093017
II (M20)44103621
III (M20)44103621
III (M24)56134425
IV (M24)56134425
IV (M30)68165631

r

Large spherical washer set for non-parallel bearing surfaces

EKØDHØdØb
II (M16)44103617
II (M20)56134421
III (M20)56134421
III (M24)68165625
IV (M24)68165625
IV (M30)80165631

z

Foam centering bushing for concentric location of anchor bolts in the machine foot holes

EKØfØDHØdh
II20,24014284
III24,24418325
IV30,25421425

d

Lateral adjuster for adjusting machine location

        F
EKMLSWHBahN
IIM1660199830671225.000
IIIM16801911930901230.000
IVM2010024149401102040.000

m

Set screw guard on flush mounted BW-Fixator®
Foundations at combination of variants m and wes

 

       Foundations      *Foundations2
EKLBHZL1H1B1D1T1D2T2
II1389259253108020080270100360
III160925930380100250100340120430
IV2061369635450120300120410150590

*Foundations 2 when using the bigger anchor screws