The impact sound insulation element SINTON® Q decouples stair landings, flights or access balconies from masonry or concrete staircase walls and from the impact noise of footfall. It consists of a load-transmitting round dowel, a vibration-damping wall bearing and a running sleeve with reinforcement cage. Depending on the version (J50 / J120), SINTON® Q is suitable for joint widths of 10-50 mm or 51-120 mm and for transmitting positive (Q1) and also negative shear forces (Q2). The insulation element can be used in in-situ concrete and prefabricated construction. The reinforcement cage of SINTON® Q1 can be inclined by up to +/- 8° so it can be flexibly adapted to the reinforcement of spiral staircases on site. When a fire protection collar is used, SINTON® Q conforms to fire resistance class R 120.

data sheet

Tender text

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  • For in-situ concrete and precast construction
  • The tiltable prefabricated reinforcement cage makes this element ideal for use in spiral staircases.
  • Landing impact sound level difference ΔL*w, landing = 31 dB - 34 dB, tested according to DIN 7396

Technical Details

  • Good corrosion protection, made of high-strength stainless steel

Approvals and Certificates

Approvals and Certificates

  • General building authority approval Z-15.7-355 with joint widths up to 120 mm
  • Meets requirements for increased sound insulation according to DIN 4109-5 as well as DEGA class A and sound insulation level III according to VDI 4100
  • Achieves fire resistance class R120 if the compatible fire protection collar is used in joints up to 60 mm wide


Products W Weight per storage unit bookmark
420100025004Impact sound insulation element Q16,514 kg
420100025005Impact sound insulation element Q17,024 kg
420100025006Impact sound insulation element Q26,581 kg
420100025007Impact sound insulation element Q27,091 kg

Load Diagram

Detail and application images

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