Durometers -- PTC® Master Durometer Index Analog and Digital Durometers, Accessories and more!

PTC is Accredited by A2LA to ISO/IEC17025 and ANSI/NCSL Z-5401 For Durometer Calibration

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Pencil Durometers

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e2000 Durometers

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Racing Tire Durometer

All PTC Durometers are Made in the USA

PTC^® INSTRUMENTS manufactures a full line of durometers and durometer accessories and offers calibration, repair and certification services. These durometers are available to ASTM D2240, ASTM F1957, JIS K-6301, JIS K-6253, DIN-53505, ISO-7619 and ISO-868 standards including many custom configurations.

Our sales department will help you determine the correct durometer for your application. We also offer material testing to determine the correct durometer type and style for your application at no charge. All PTC^® Durometers are manufactured in the U.S.A.

PTC Metrology is Accredited by A2LA to ISO/IEC 17025 and ANSI/NCSL Z540-1 for durometer calibration. NIST traceable certification is available for any durometer type covered by current ASTM D2440, ASTM F1957, ISO 868, ISO 7619, or DIN 53505 standards. The Calibration Report will include both "as received" and "as left" data on the force curve measurement. Durometer calibration includes: indenter geometry and extension, indicator linearity from 0 to 100, and mainspring force. Other durometer types, custom models, and durometers of any manufacture can also be certified by PTC Metrology.

Our Half Point and
Racing Tire Durometers

See our complete line of Durometers ASTM, JIS, Asker, and Custom

Pencil-style 0.5"Ø Base	The PTC® Pencil Style Durometers are manufactured to meet or exceed current ASTM D2240 and ISO 868 specifications and designed to measure the indentation hardness of rubber, elastomers, foams, gels, and plastics. The durometer's 1/2" diameter base (1.3cm) is the smallest base permitted by ASTM D2240 specifications. This allows it to be used in confined or hard to reach areas other durometers cannot test. A standard max hand holds the peak reading until reset. The dial has a red zone to indicate unreliable readings.	Model 201 Type A Model 201B Type B Model 202C Type C Model 202 Type D Model 201O Type O Model 203 Type OO Model 202DO Type DO Model 601 Type Asker C
Digital Pencil-style 0.5"Ø Base	The Pencil Style Digital Durometers with a 1/2" diameter base (1.3cm) and overall length will allow the durometer to be used in confined or hard to reach areas with 0.1 reading resolution.. A knurled surface gives a more secure grip when making hand held readings. All Digital Durometers come complete with Electronic Max Hold feature, Test Block, Carrying Case and a NIST traceable certification. PTC^® Metrology is accredited by A2LA to ISO/IEC17025 and ANSI Z-540.	Model 211 Type A Certified Model 211B Type B Certified Model 212C Type C Certified Model 212 Type D Certified Model 211O Type O Certified Model 212DO Type DO Certified Model 611 Type Asker C Certified
Classic Style 1"x 1.6" Base	The Classic Style Durometers from PTC Instruments are built to meet or exceed current ASTM D2240 and ISO 868 specifications and are available in ASTM Type A, B, C, D and OOO. Try our new Half Point. This durometer can be used either with a test stand, hand-held or with the constant load weight. Please refer to the stand selection guide for appropriate instruments. The PTC® Classic Style Durometer comes complete with carrying case and test block. A standard maximum hand holds the peak reading until reset.	Model 306LClassic Style Type A Model 306L.5 Half Point Classic Style Type A Model 306BL Classic Style Type B Model 306RL Racing Classic Style Type A Model 307CL Classic Style Type C Model 307LClassic Style Type D Model 412Classic Style Type OOO Model 603 Type Asker C JIS Type A or C Meets JIS K6301 Standards
Ergonomic 1"x 1" Base Removeable Knob	The Ergo Style Durometers from PTC Instruments are built to meet or exceed current ASTM D2240 and ISO 868 specifications. The 400 Series Durometers features a removable knob for small confined areas while landing on a solid 1" x 1 " base. The Ergo Style Durometers are available in Type A, B, C, D, DO, E, O, OO, and ISO-7619-1 type AO. The PTC® Ergo Style Durometers come complete with carrying case, test block and a magnetic max hand that holds the peak reading until reset. A test report is included for A & D models which notes the value at 20,40 60 & 80. For complete calibration services please refer to PTC Metrology an A2LA Accredited Laboratory.	Model 408 Ergo Style Type A Model 408AO Ergo Style Type AO Model 408B Ergo Style Type B Model 409C Ergo Style Type C Model 409 Ergo Style Type D Model 413 Ergo Style Type DO Model 408E Ergo Style Type E Model 410 Ergo Style Type O Model 411 Ergo Style Type OO Model 604 Ergo Style Type Asker C
Analog e-2000 1.25"Ø Base	The design of the e2000 is the ultimate in hand held hardness measurements. Easier handling and more repeatable readings are the result of PTC^®'s Ergonomic Research. The 1.25" diameter base (3.2cm) is the most practical size for maximum repeatability and increased stability. All PTC^® durometers come complete with test block, carrying case and max hand. Any e2000 Millennium Style Durometer can be made as an "R" designation. The "R" designation specifies a presser foot diameter of 18 ± 0.5mm (0.71 ± 0.02in) in diameter, while the spring forces and indenter configurations remain the same. Please specify the "R" Type when ordering. US Patent D436,874	Model 501A e2000 Type A Model 501B e2000 Type B Model 502 e2000 Type C Model 502 e2000 Type D Model 501/O e2000 Type O Model 502 e2000 Type DO
Digital e-2000 1.25"Ø Base	The ultimate digital durometer for accurate hand held hardness measurements of the indentation hardness of rubber, elastomers, and other rubber-like substances, such as neoprene, silicone, vinyl, nitrile, and butyl. It can also be used for soft plastics, felt, leather, plastic, lexan, kevlar and similar materials. The e2000 Series durometers are easy to grip and the 1.25" (3.2cm) diameter base has a large landing area for increased stability and maximum repeatability. All PTC^® digital durometers come complete with test block , carrying case and NIST traceable certificate from PTC Metrology. US Patent D436,874	Model 511A e2000 Certified A Model 511B e2000 Certified B Model 512C e2000 Certified C Model 512D e2000 Certified D Model 511/O e2000Certified O Model 511/OO e2000Certified OO Model 512 DO e2000 Certified DO
Type SL Foam and Sponge Rubber	The 302SL is an industry standard in use for over 50 years measuring very soft materials such as foam rubber, sponge rubber, cellular material and gel-like materials. This instrument can perform comparative hardness tests on foam or sponge rubber without the cost of using an indention load deflection (ILD) test machine. Used for testing Plastic Foam, and Open Cell Foam, Seat Cushions for the Auto and Furniture industries.	Model 302SL Asker F
ASTM F1957	Measures hardness of freon and water blown types of composite foam. Designed for the Amusement Park Industry Drywal Hardness Gauge 414USG Designed for U.S. Gypsum	Model 414 CF Model 414USG
	This Durometer measures the tension in a fabric while stretched on a sock form. Designed for NAHM Sizing Form	Model Renfro

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Our Half Point and Racing Tire Durometers

Our Half Point and
Racing Tire Durometers