Name: Absorber Rondo Cylindrical Absorber
Brand: Fural Soft Akustik

Description

Absorber Rondo is a cylindrical absorber made of melamine foam (Basotect) that hangs horizontally or vertically, depending on the version. For T-24 exposed grid systems there is Rondo T, with a T-slot along the side or in the end face, and a version with an aluminium tube through the core; for steel cables there is Rondo S, with a carrier profile and two hooks or with a spiral spring fitted to the end face. It is used in tall spaces such as reception halls and stadiums, as well as in offices and meeting rooms, canteens, event spaces, production facilities, swimming pools, schools and nurseries.

Technical data

Material: Melamine foam (Basotect)

Up to fire class: B1 (DIN 4102)

Colours: White, grey; other colours and colour coating on request

Measured values as a table (12 measurements)

Absorber Rondo Cylindrical Absorber: sound absorption coefficient αs per ISO 354 by frequency and test build-up
Build-up	α_w	Absorber class	100 Hz	125 Hz	160 Hz	200 Hz	250 Hz	315 Hz	400 Hz	500 Hz	630 Hz	800 Hz	1000 Hz	1250 Hz	1600 Hz	2000 Hz	2500 Hz	3150 Hz	4000 Hz	5000 Hz
Ø 230 mm · 400 mm axis spacing · 1770 mm suspension height · Rondo S	1.00	A	0.34	0.40	0.53	0.65	0.83	1.11	1.16	1.20	1.31	1.38	1.45	1.52	1.47	1.55	1.55	1.55	1.43	1.37
Ø 230 mm · 600 mm axis spacing · 1770 mm suspension height · Rondo S	0.90	A	0.26	0.30	0.39	0.45	0.61	0.77	0.88	1.00	1.19	1.19	1.22	1.23	1.23	1.27	1.20	1.17	1.12	1.13
Ø 230 mm · 720 mm axis spacing · 1770 mm suspension height · Rondo S	0.80	B	0.20	0.24	0.29	0.36	0.51	0.69	0.78	0.88	0.97	1.04	1.07	1.09	1.04	1.05	1.02	1.05	1.01	0.95
Ø 150 mm · 400 mm axis spacing · 1850 mm suspension height · Rondo S	0.50	D	0.13	0.15	0.12	0.15	0.19	0.24	0.50	0.61	0.79	0.77	0.78	0.84	0.86	0.87	0.86	0.87	0.84	0.85
Ø 150 mm · 600 mm axis spacing · 1850 mm suspension height · Rondo S	0.50	D	0.09	0.11	0.14	0.16	0.17	0.22	0.39	0.49	0.61	0.62	0.68	0.68	0.69	0.70	0.70	0.71	0.70	0.72
Ø 150 mm · 720 mm axis spacing · 1850 mm suspension height · Rondo S	0.40	D	0.06	0.07	0.05	0.11	0.13	0.18	0.30	0.38	0.50	0.55	0.61	0.62	0.62	0.64	0.62	0.63	0.64	0.62
Ø 230 mm · 400 mm axis spacing · 770 mm suspension height · Rondo T	0.90	A	0.39	0.33	0.33	0.46	0.69	0.85	0.87	0.95	0.92	0.94	0.94	0.85	0.88	0.86	0.92	0.85	0.89	0.93
Ø 230 mm · 600 mm axis spacing · 770 mm suspension height · Rondo T	0.80	B	0.36	0.20	0.23	0.41	0.60	0.71	0.79	0.85	0.85	0.85	0.82	0.79	0.82	0.79	0.81	0.79	0.78	0.76
Ø 230 mm · 720 mm axis spacing · 770 mm suspension height · Rondo T	0.75	C	0.23	0.19	0.19	0.39	0.49	0.59	0.68	0.81	0.79	0.75	0.72	0.75	0.72	0.72	0.74	0.71	0.72	0.66
Ø 150 mm · 400 mm axis spacing · 1850 mm suspension height · Rondo T	0.50	D	0.13	0.14	0.12	0.15	0.20	0.23	0.49	0.59	0.82	0.82	0.88	0.84	0.88	0.86	0.90	0.91	0.90	0.92
Ø 150 mm · 600 mm axis spacing · 1850 mm suspension height · Rondo T	0.50	D	0.14	0.13	0.11	0.16	0.18	0.23	0.36	0.49	0.60	0.60	0.67	0.68	0.69	0.71	0.69	0.70	0.72	0.71
Ø 150 mm · 720 mm axis spacing · 1850 mm suspension height · Rondo T	0.45	D	0.11	0.10	0.07	0.13	0.16	0.18	0.36	0.42	0.53	0.51	0.58	0.60	0.62	0.61	0.60	0.62	0.63	0.61

Absorber Rondo Cylindrical Absorber

Manufacturer

Fural Soft Akustik

Description

Technical data

Measurement data

Sound absorption

Frequency values

				Value
Ø 230 mm	400 mm axis spacing	1770 mm suspension height	Rondo S	α_w1.00
Ø 230 mm	600 mm axis spacing	1770 mm suspension height	Rondo S	α_w0.90
Ø 230 mm	400 mm axis spacing	770 mm suspension height	Rondo T	α_w0.90
Ø 230 mm	720 mm axis spacing	1770 mm suspension height	Rondo S	α_w0.80
Ø 230 mm	600 mm axis spacing	770 mm suspension height	Rondo T	α_w0.80
Ø 230 mm	720 mm axis spacing	770 mm suspension height	Rondo T	α_w0.75
Ø 150 mm	400 mm axis spacing	1850 mm suspension height	Rondo S	α_w0.50
Ø 150 mm	600 mm axis spacing	1850 mm suspension height	Rondo S	α_w0.50
Ø 150 mm	400 mm axis spacing	1850 mm suspension height	Rondo T	α_w0.50
Ø 150 mm	600 mm axis spacing	1850 mm suspension height	Rondo T	α_w0.50
Ø 150 mm	720 mm axis spacing	1850 mm suspension height	Rondo T	α_w0.45
Ø 150 mm	720 mm axis spacing	1850 mm suspension height	Rondo S	α_w0.40