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Products Description
Weight Stack Rod Rubber Spacers are precision-molded elastomeric components installed between counterweight blocks and weight stack rods in air conditioning outdoor units. They isolate vibration, prevent metal-to-metal contact, reduce noise-ensuring reliable, quiet HVAC operation.
Features
Noise Reduction
High-damping rubber compound effectively minimizes low-frequency oscillations, reducing structure-borne noise by up to 60%. This ensures quieter and more stable HVAC operation.
Durability
Made from EPDM or NBR rubber, the spacers resist compression set, ozone, UV exposure, and extreme temperatures ranging from –40°C to +120°C. This guarantees long service life in demanding environments.
Precision Fit
Manufactured to ±0.2 mm tolerance, ensuring consistent compatibility with standard weight stack rods (OD: 10–25 mm). Custom dimensions are available to meet specific installation requirements.
Corrosion Protection
Prevents metal-to-metal contact, eliminating scratches and reducing the risk of galvanic corrosion between dissimilar materials. This extends the lifespan of both rods and counterweight blocks.
HVAC-Specific Expertise
10+ years supplying rubber spacers to Tier-1 AC manufacturers in Asia, Europe, and North America.
Material Certification
All compounds meet ISO 37 (tensile), ISO 7619-1 (hardness), and RoHS/REACH compliance.
Customization Ready
Adjust hardness (50–80 Shore A), ID/OD, thickness, color, or durometer per your stack rod specs.
Quality Assurance
100% visual inspection + batch testing for compression deflection and aging performance.
Procurement Services
Packaging
Anti-static poly bags (100 pcs/bag) → cartons (10–20 kg net) → palletized for export. Custom labeling available.
MOQ
1,000 pcs (standard sizes); 5,000 pcs for custom molds.
Lead Time
15 days for stock items; 25–30 days for new tooling.
Logistics
FOB Tianjin / EXW / DDP options. Full documentation (COO, MSDS, test reports) provided.
Samples
Free samples (up to 50 pcs) for qualified buyers with freight collect.
FAQ
What rubber material do you recommend for coastal/high-humidity environments?
We suggest EPDM-it offers excellent resistance to moisture, salt spray, and UV degradation.
Can the spacer handle dynamic loads from a 50kg counterweight?
Yes. Our standard 70 Shore A NBR spacers support static loads >100kg and repeated dynamic impacts without permanent deformation.
Do you provide CAD drawings or 3D models for integration validation?
Yes-STEP, IGES, or DWG files available upon request after NDA.
How do you ensure consistent inner diameter for smooth rod insertion?
We use precision steel cores during molding and conduct 100% ID checks with go/no-go gauges.
Are your spacers compatible with existing weight stack rods from Daikin, Mitsubishi, or Gree?
Yes-we maintain a database of OEM rod dimensions and can match tolerances exactly.
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