FAEBI® rubber air springs

FAEBI^® – rubber air spring insulator

The regular FAEBI^® element is available in many sizes and variants, depending on your application. Should you require assistance with the selection, please do not hesitate to contact us. You find your local contact person here.

Advantages compared to steel springs:

In comparison to steel springs the use of air spring offers many advantages when used for vibration insulation:

Flexible insulation system design: Changes in the static or dynamic loads can be compensated for by adjusting the air pressure. This can be performed either manually or pneumatically (e.g. using Bilz level control)
Integrated damping, therefore separate damping is not necessary.
No transmission of structure borne noise

All information on our rubber air springs can be found in our catalog excerpt “FAEBI® rubber air springs” (PDF).

Details (technical data)

Note

Please also pay attention to the point “General information“.

FAEBI

Type	Variant	Item no. FAEBI	load N/pc.	max. pressure bar	A mm	Ø D mm	H approx. mm = working height	H (deflated) mm	Ø d mm	h mm	G mm
FAEBI® 50	Standard	40-0071	200-600	3	110	85	60	61	35	5	M10
	Standard + BR7-1	40-0134	200-500	2.5	110	85	62	68	35	5	M10
	Soft	40-0072	100-500	2.5	110	85	60	61	35	5	M10
	Soft + BR7-1	40-0135	100-450	2.3	110	85	62	68	35	5	M10
FAEBI® 75	Standard	40-0082	400-1,500	3	115	100	63	67	43	5	M12
	Standard + BR7-1	40-0136	400-1,350	2.7	115	100	65	74	43	5	M12
	Soft	40-0084	350-1,300	2.6	115	100	63	67	43	5	M12
	Soft + BR7-1	40-0137	350-1,200	2.4	115	100	65	74	43	5	M12
	Super Soft	40-0083	300-1,050	2.1	115	100	63	67	43	5	M12
	Super Soft + BR7-1	40-0138	300-1,050	2.1	115	100	65	74	43	5	M12
FAEBI® 100	Standard	40-0024	750-3,000	5	135	120	62	65	60	5	M12
	Standard + BR7-1	40-0139	750-3,000	5	135	120	64	72	60	5	M12
	Soft	40-0026	600-2,600	4.4	135	120	62	65	60	5	M12
	Soft + BR7-1	40-0140	600-2,600	4.4	135	120	64	72	60	5	M12
	Super Soft	40-0025	550-2,400	4	135	120	62	65	60	5	M12
	Super Soft + BR7-1	40-0141	550-2,400	4	135	120	64	72	60	5	M12
FAEBI® 125	Standard	40-0033	2,600-4,600	5.5	165	140	93	98	66	5	M16
	Standard + BR7-1	40-0142	2,600-4,600	5.5	165	140	95	105	66	5	M16
	Soft	40-0035	2,400-4,050	4.9	165	140	93	98	66	5	M16
	Soft + BR7-1	40-0143	2,400-4,050	4.9	165	140	95	105	66	5	M16
	Super Soft	40-0034	2,200-3,500	4.2	165	140	93	98	66	5	M16
	Super Soft + BR7-1	40-0144	2,200-3,500	4.2	165	140	95	105	66	5	M16
Type	Variant	Item no. FAEBI	Load N/pc.	max. load bar	A mm	Ø D mm	H approx. mm = working height	H (deflated) mm	Ø d mm	h mm	G
FAEBI® 150	Hart	40-0043	2,600-8,500	6.4	200	170	91	96	80	8	M16
	Standard	40-0037	2,500-8,000	6	200	170	91	96	80	8	M16
	Soft	40-0040	2,400-7,000	5.3	200	170	91	96	80	8	M16
	Super Soft	40-0038	2,300-6,500	4.9	200	170	91	96	80	8	M16
FAEBI® 200	Hart	40-0051	7,000-15,000	6	260	236	91	95	130	8	M16
	Standard	40-0046	6,250-15,000	6	260	236	91	95	130	8	M16
	Soft	40-0048	6,000-13,000	5.2	260	236	91	95	130	8	M16
	Super Soft	40-0047	5,500-11,500	4.6	260	236	91	95	130	8	M16
FAEBI® 300	Hart	40-0058	12,000-28,000	6.5	370	340	89	93	200	8	M20
	Standard	40-0055	11,500-27,000	6	370	340	89	93	200	8	M20
	Soft	40-0056	10,500-25,000	5.6	370	340	89	93	200	8	M20
FAEBI® 430	Hart	40-0065	30,000-66,000	6.1	500	480	89	94	315	12	M20
	Standard	40-0064	27,500-65,000	6	500	480	89	94	315	12	M20
FAEBI® 580	Super Hart	40-0079	54,000-120,000	6.6	680	650	89	91	380	14	M24
	Hart	40-0078	52,000-115,000	6.3	680	650	89	91	380	14	M24
	Standard	40-0076	51,500-110,000	6	680	650	89	91	380	14	M24

Natural frequencies

Natural frequencies FAEBI^®

Vertikale Eigenfrequenz= vertical natural frequency

Last = load

Accessories

Fixing bolts

A large range of different bolts are available for each type of FAEBI^® element. The suitable bolt in each case can be found in the following table. All bolts are delivered with standard thread. 1 bolt, 1 nut and 1 washer are supplied with the FAEBI^® elements.

Item numbers of the fixing bolts

FAEBI® (-HD) Type	Thread	Material	Item no.	Length in mm
FAEBI® 50	M10	galvanised	19-0311	100
	M10	stainless steel	18-0005	100
FAEBI® 75/100	M12	galvanised	19-0322	100
	M12	stainless steel	18-0016	100
FAEBI® 125/150/200 (-HD)	M16	galvanised	19-0324	125
	M16	stainless steel	18-0066	125
FAEBI® 300 (-HD)/430 (-HD)	M20	galvanised	19-0327	150
	M20	stainless steel	18-0044	150
FAEBI® 580 (-HD)	M24	galvanised	19-0329	150
	M24	stainless steel	18-0052	150

Pressure control

The Bilz pressure control is the ideal addition to applications that do not need automatic level control. Instead of filling the air springs manually, they are connected to a constant compressed air supply. The working height of the individual insulators can each be individually set with one pressure regulator.

Applications

Applications with a constant centre of gravity during the production/testing process (no moving machine components, workpieces, etc., steady masses).
Difficult to access systems, where the manual checking of air pressure in the air springs is impeded.

Advantages of the FAEBI^® pressure control

Simple and precise setting of the required pressure for each air spring or control group.
Maintenance free
Manometer for continuous pressure indication
Upstream particle filter and water trap
Can be configured for any number of air springs or control
groups

Mechanical-pneumatic level control MPN-LCV

The mechanical-pneumatic level control (MPN) with our robust proportional valve LVC represents a simple but effective solution for preventing skew positions resulting from load changes. A plunger continuously probes the level and the position of the plunger is transmitted to a slide valve. The air spring is either pressurized or the internal pressure is vented in accordance with the position of the plunger. The adjustable target level is maintained within an accuracy of ± 1/10 mm. In principle three control valves are used, that optionally have an upstream air maintenance unit for conditioning the pneumatic air supply, limiting the system pressure to 6 bar, removing accumulated condensate and filtering out solid particles (rust and dust).

Very robust galvanised proportional valve. Level accuracy is approximately ± 1/10 mm.

Protective hood

If the contact surface of the FAEBI^® element (see Type series FAEBI^® or FAEBI^®-HD) is not completely covered by the bottom edge of the machine, then an appropriate hood is required to ensure the sufficient load distribution across the air spring. A hood will also provide protection from external damage.
Material: Steel sheet (primed black)
The protective hood is also available in stainless steel on request.

Type	Item no.	A mm	D mm	s mm	h mm	d mm
AH-FAEBI® 50/75	40-0013	13	115	5	40	2
AH-FAEBI® 100	40-0001	14	140	5	45	2
AH-FAEBI® 125	40-0004	18	160	5	60	2
AH-FAEBI® 150	40-0006	18	190	5	60	2
AH-FAEBI® 200/-HD	40-0007	18	255	5	60	3
AH-FAEBI® 300/-HD	40-0009	22	360	5	60	3
AH-FAEBI® 430/-HD	40-0012	22	500	10	60	4
AH-FAEBI® 580 (-HD)	40-0014	27	680	10	60	4

Description

Details (technical data)

Natural frequencies

Accessories

Enquiry

Details (technical data)