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ASTM D395 Method B Rubber Compression Set Tester Constant Deflection Testing Fixture for Elastomer CF8385

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ASTM D395 Method B Rubber Compression Set Tester Constant Deflection Testing Fixture for Elastomer CF8385

Name: ASTM D395 Method B Rubber Compression Set Tester Constant Deflection Testing Fixture for Elastomer CF8385
Brand: CHENGFENG
Price: 600 USD

Place of Origin : Guangdong, China

Specimen Size : 29mm × 12.5mm

Price : USD 600-1800 / Set

Supply Ability : 100 Sets per Month

Compression Ratio : 25% ±2%

MOQ : 1 Set

Plate Material : 304 Stainless Steel

Oven Compatibility : Up to 250°C

Plate Dimensions : 76 × 76 × 10mm

Certification : ISO 9001:2015, CE

Payment Terms : T/T,L/C,Western Union,PayPal

Spacer Material : Hardened 304 SS

Model Number : CF8385

Packaging Details : Standard export wooden case with shock-proof foam insert

Specimens per Fixture : 3

Brand Name : CHENGFENG

Spacer Thickness : 9.38mm ±0.01mm

Test Method : ASTM D395 Method B Constant Deflection

Delivery Time : 7-15 working days

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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

Parameter	Specification
Test Method	ASTM D395 Method B (Constant Deflection)
Specimen Size	29mm ±0.5mm diameter, 12.5mm ±0.5mm thickness
Compression Ratio	25% ±2% (standard), others available
Number of Specimens	3 per fixture
Spacer Material	Hardened 304 Stainless Steel
Plate Material	304 Stainless Steel, chrome-plated
Plate Dimensions	76 * 76mm
Plate Thickness	10mm
Spacer Thickness	9.38mm ±0.01mm (for 25% compression)
Fastener Type	M8 304 SS bolts with lock washers
Oven Compatibility	Up to 250°C
Net Weight	Approx. 8kg per fixture set

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.

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