IMG_2750_clipped_rev_1

IMG_2755_clipped_rev_1

Baureihe EK STE

IMG_2762-mit-Variante-d_clipped_rev_1

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:

Instruction for installation:

Machine alignment with BW-Fixators®:

Dimensions of series EK

GA Basic Unit

Size	L	B	H	ØD	SW	d	c	h	l	b
II	178	120	72	75	19	15	27	5	96	100
III	220	150	92	90	24	22	36	6	118	120
IV	275	180	110	110	30	34	46	8	142	145

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

Size	Øf1	Øf2	g
II	21	25	M16
III	25	31	M20
IV	31	37	M24

Technical Data of series EK

Size		Dim	EK II	EK III	EK IV
Permissible maximum load ¹)		N	120.000	240.000	360.000
Recommended machine dead weight ²)		N	20.000	40.000	60.000
Spring constant in operation range ³)		N/µm	4.500	8.000	10.000
Torque at adjusting screw	Specific-	Nm / 10³ kg	3	4	4,5
	Maximum-	Nm	36	96	160
	Security-	Nm	2,5-5	3,5-7	4-8
Vertical Adjustment per screw turn		mm	0,25	0,29	0,35
Weight of basic unit		kg	4,5	9	16

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
EK	M	L	l	f	Ød	von	bis	D	T	max. N
II	M20	400	100	40	16	20	90	80	270	81.000
III	M24	500	135	50	19	30	100	100	340	115.000
IV	M30	600	150	55	24	35	135	120	410	182.000

we/2

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

						short		e		long		e		Foundations		Clamping force
EK	M	L1	l1	Ød	SW	L	l	von	bis	L	l	von	bis	D	T	max. N
II	M20	275	43	16	13	140	50	20	50	190	80	55	100	100	220	81.000
III	M24	360	59	19	17	165	60	30	60	225	90	65	120	120	290	115.000
IV	M30	450	80	24	19	190	70	35	70	255	110	75	135	150	360	182.000

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

due

Resin anchor
(Capsule and stud)

					e		Hole		Clamping force*
EK	M	L	SW	f	von	bis	ØD	T	max. N
II	M20	400	13	40	20	90	25	170	27.000
III	M24	450	17	50	20	70	28	210	37.000

*Concrete ≥ B 25

due/2

Split resin anchor
(Capsule and split stud)

				short		e		long		e				Hole		Clamping force*
EK	M	Ød	SW	L	l	von	bis	L	l	von	bis	L1	n	ØD	T	max. N
II	M20	16	13	140	50	20	50	190	80	55	100	240	70	25	170	27.000
III	M24	19	17	165	60	30	60	225	120	65	120	290	80	28	210	37.000

*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
EK	M	Ød	SW	f	L	l	von	bis	L	l	von	bis	max. N
II	M16	13	10	35	170	55	20	60	200	85	65	90	53.000
III	M20	16	13	40	175	55	20	35	205	85	40	65	81.000
IV	M24	19	17	50	215	70	20	55	260	120	60	100	115.000

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
EK	a	c	SW	length l	Tube	L1	B1	H1
II	50	27	22	140	24x4	80	40	70
III	50	36	22	170	24x4	80	40	90
IV	50	46	32	200	38x5	100	50	100

led

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

				Minimum		led			led-l
EK	a	c	SW	length l	Tube	min	max	Umax	max	Umax	ØD	T
II	50	27	22	140	24x4	25	80	≤50	120	≤90	14	120
III	50	36	22	170	24x4	25	80	≤40	120	≤80	14	120
IV	50	46	32	200	38x5	40	120	≤70			14	120

les

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

				Minimum			Foundations
EK	a	B	H	length l	A1	Z1	B1	H1	X1
II	65	92	59	140	140	25	200	80	240
III	72	92	59	180	160	30	250	100	270
IV	75	136	96	240	200	35	300	120	320

p

Spherical washer set for non-parallel bearing surfaces

EK	ØD	H	Ød	Øb
II (M16)	40	9	30	17
II (M20)	44	10	36	21
III (M20)	44	10	36	21
III (M24)	56	13	44	25
IV (M24)	56	13	44	25
IV (M30)	68	16	56	31

r

Large spherical washer set for non-parallel bearing surfaces

EK	ØD	H	Ød	Øb
II (M16)	44	10	36	17
II (M20)	56	13	44	21
III (M20)	56	13	44	21
III (M24)	68	16	56	25
IV (M24)	68	16	56	25
IV (M30)	80	16	56	31

z

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

EK	Øf	ØD	H	Ød	h
II	20,2	40	14	28	4
III	24,2	44	18	32	5
IV	30,2	54	21	42	5

d

Lateral adjuster for adjusting machine location

								F
EK	M	L	SW	H	B	a	h	N
II	M16	60	19	98	30	67	12	25.000
III	M16	80	19	119	30	90	12	30.000
IV	M20	100	24	149	40	105	20	40.000

m

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

					Foundations					*Foundations2
EK	L	B	H	Z	L1	H1	B1	D1	T1	D2	T2
II	138	92	59	25	310	80	200	80	270	100	360
III	160	92	59	30	380	100	250	100	340	120	430
IV	206	136	96	35	450	120	300	120	410	150	590

*Foundations 2 when using the bigger anchor screws

Size	L	B	H	ØD	SW	d	c	h	l	b
II	178	120	72	75	19	15	27	5	96	100
III	220	150	92	90	24	22	36	6	118	120
IV	275	180	110	110	30	34	46	8	142	145

					Foundations					*Foundations2
EK	L	B	H	Z	L1	H1	B1	D1	T1	D2	T2
II	138	92	59	25	310	80	200	80	270	100	360
III	160	92	59	30	380	100	250	100	340	120	430
IV	206	136	96	35	450	120	300	120	410	150	590

Size	L	B	H	ØD	SW	d	c	h	l	b
II	178	120	72	75	19	15	27	5	96	100
III	220	150	92	90	24	22	36	6	118	120
IV	275	180	110	110	30	34	46	8	142	145

					Foundations					*Foundations2
EK	L	B	H	Z	L1	H1	B1	D1	T1	D2	T2
II	138	92	59	25	310	80	200	80	270	100	360
III	160	92	59	30	380	100	250	100	340	120	430
IV	206	136	96	35	450	120	300	120	410	150	590

Size	L	B	H	ØD	SW	d	c	h	l	b
II	178	120	72	75	19	15	27	5	96	100
III	220	150	92	90	24	22	36	6	118	120
IV	275	180	110	110	30	34	46	8	142	145

					Foundations					*Foundations2
EK	L	B	H	Z	L1	H1	B1	D1	T1	D2	T2
II	138	92	59	25	310	80	200	80	270	100	360
III	160	92	59	30	380	100	250	100	340	120	430
IV	206	136	96	35	450	120	300	120	410	150	590