Rubber Anti-Vibration Blocks: Compliance with ISO 2017-1:2005 & GB/T 20029-2005
Rubber anti-vibration blocks are core passive vibration control parts for compressors, pumps, HVAC units, generators and precision instruments. Top-tier manufacturers design and test these dampers following two core standards: international ISO 2017-1:2005 and Chinese national finished-product standard GB/T 20029-2005 Rubber isolation bearings for instruments and equipments, guaranteeing consistent, reliable vibration isolation for global industrial clients.
ISO 2017-1:2005 sets universal rules for resilient mounting systems worldwide. It standardizes technical communication between equipment users, machinery suppliers and rubber isolator producers, defining key parameters including equipment weight, operating frequency, working temperature and target isolation efficiency required for proper rubber block selection. This ISO standard guides engineers to avoid resonance by matching rubber stiffness to machine vibration frequency, covering both new machinery installation and retrofits for existing vibration issues across factories, buildings and marine equipment. It unifies global evaluation logic for multi-directional shock absorption, forming the international design baseline for all rubber vibration pads.
Complementing the ISO design guideline, GB/T 20029‑2005 delivers strict finished-product performance benchmarks exclusively for instrument and machinery rubber isolation blocks. The standard classifies products into three Shore A hardness grades (40A, 60A, 80A) and enforces critical durability indicators: compression set ≤25% under 70- for 22 hours, damping ratio between 0.05–0.15, and limited hardness shift (±8A) after 72-hour thermal aging. It also regulates raw material rules, banning low-performance recycled rubber to prevent permanent creep, cracking and shortened service life. Visual defects, dimensional tolerances and complete factory inspection protocols are fully specified for mass production quality control.
Combining ISO 2017‑1:2005 design guidance with GB/T 20029‑2005 product performance limits creates fully certified rubber dampers. Made of virgin NR, NBR, EPDM or silicone rubber, these blocks cut vibration transmission by over 80% and lower structure-borne noise by 10–15dB. Custom sizes, layered steel-plate composite structures and oil/weather-resistant formulas are available to match pumps, air compressors, medical lab devices and outdoor HVAC systems.
For global procurement, products meeting both standards support third-party lab testing, export certification and engineering tender approval. They deliver long service life (3–5 years under standard loads), protect machinery from vibration fatigue and eliminate noise complaints in commercial, industrial and residential buildings.
