ASTM D395 Method B Compression Set Tester CF8385

The CF8385 Compression Set Tester evaluates the ability of rubber and elastomeric materials to recover their original thickness after prolonged compressive stress under constant deflection, per ASTM D395 Method B and ISO 815. The test is essential for quality control of gaskets, O-rings, seals, and vibration-damping components.

Key Features

• ASTM D395 Method B Compliant: Constant deflection method using precision-ground spacer bars for accurate compression ratio control of 25%.
• Multi-Specimen Capacity: Test fixture accommodates 3 cylindrical specimens simultaneously per ASTM specification for efficient batch testing.
• Precision-Ground Spacers: Hardened steel spacers maintain exact compression height with ±0.01mm tolerance across all test positions.
• Corrosion-Resistant Construction: 304 stainless steel plates and spacers withstand extended exposure to elevated temperatures and aggressive test environments.

Technical Specifications

Compliance Standards

ASTM D395 Method B, ISO 815-1, GB/T 7759.1

Standard Accessories

• 3-specimen compression fixture
• Precision spacers (25% compression)
• Specimen cutting die (29mm)
• Mounting and disassembly tools
• Calibration certificate and manual

Quality Assurance

12-month warranty. Replacement spacers and plates available.

CHENGFENG is a professional manufacturer of Building materials/ Wire/ Plastics/ Rubber Fire retardant testing equipment

About CHENGFENG Company:

CHENFENG TESTING EQUIPMENT CO., LTD (DAXIAN INSTRUMENT EQUIPMENT CO., LTD) is Located in Changan Town (Dongguan City ,Guangdong Province, China),a famous historical town with prosperous industry and convenient transportation.

We are a high-tech enterprise which is specialized in developing and manufacturing Fire Testing Equipment, Building Material Fire Tester, Wire and Cable Fire Tester, Environmental Test Chamber, Textile Testing Equipment, Toys Testing Equipment and etc.

CHENGFENG's testing equipment are widely used in various field: scientific institutions, colleges, inspection institutions, auto parts, electronics, electricals, LED, photoelectricity, mobile, plasticand rubber, telecommunication, chemical industry, aerospace, building material and product, wire and cable,textile and fabrix, etc.

All CHENGFENG testing equipment are designed according to international test standards, such as ISO, ASTM, DIN, EN, GB, BS, JIS, UL, TAPPI, AATCC, IEC, VDE, CSA,CEN and so on.

Our service:
1. High quality guarantee.
2. Shipment with professional documents.
3. Packing as your request, with photo before shipment.
4. Reply within 48 hours and provide solution within 3 working days
5. Professional after-service from our engineers.
6. Warranty period 12 monthes.

Our advantages:
1. Professional technology support.
2. Full experience of large numbers containers loading in Chinese sea port.
3. Fast shipment by reputed shipping line.
4. Best service after shipment with emails.
5. We are professional test equipment manufaturer in China with excellent experience and skills, also have best quality products.

6. In-time after-sale service.