Precision Grip & Fixture Manufacturing for Universal Testing Machines
CNC-machined grips, fixtures, and testing accessories crafted to exacting tolerances. Wedge grips, pneumatic grips, compression platens, bending fixtures, and custom jigs — ISO, ASTM, DIN & EN compliant, manufactured in Vadodara, Gujarat.
CNC Precision for Every Test Grip Application
At S.S. Engineering, we apply our core expertise in multi-axis CNC machining to the manufacture of precision grips, fixtures, and testing accessories for universal testing machines (UTM). Every grip we produce is machined from the right material, to the right tolerance, with surfaces finished for consistent specimen alignment and reliable load transfer.
Whether you need a standard wedge grip set for tensile testing, a pneumatic grip for high-throughput labs, a three-point bending fixture to a specific ISO standard, or a fully custom test jig from your own drawing — we machine it in-house at our GIDC Makarpura facility in Vadodara.
- CNC machined to ±0.005 mm on critical features
- Materials: alloy steel, tool steel, SS 304/316, aluminum
- Compliant with ISO, ASTM, DIN, EN, TAPPI, and BIS standards
- Custom grips from customer drawings (PDF, DWG, STEP, IGES)
- Replacement jaw inserts & grip accessories available
- Pan-India delivery and international export capability
Grip Types & Fixtures We Manufacture
Precision CNC-machined grips and testing accessories for every UTM application
Wedge Grips
Self-tightening wedge-action tensile grips for flat, round, and dog-bone specimens. Load increases clamping force automatically for secure, slip-free holding up to full specimen failure.
- Flat jaw & V-jaw configurations
- Capacity: 1 kN – 600 kN
- Interchangeable jaw inserts
- ISO 6892, ASTM E8 compliant
Pneumatic Grips
Air-actuated pneumatic grips delivering consistent, adjustable clamping force without operator variation. Ideal for high-throughput testing labs and delicate or flexible specimens.
- Pressure-controlled clamping
- Suitable for textiles, films, rubber
- Quick specimen changeover
- Custom jaw face profiles
Hydraulic Grips
High-force hydraulic grips for heavy-duty tensile testing of steel, wire rope, and structural specimens. Uniform clamping pressure eliminates bending stress at the grip interface.
- Capacity: up to 2,000 kN
- Hardened jaw inserts
- For steel, bar, wire, cable
- ASTM A370, ISO 6892 compliant
Compression Platens
Hardened and ground compression platens for compressive strength testing of materials. Spherically seated upper platens ensure uniform load distribution across non-parallel specimens.
- Hardened steel (60–62 HRC)
- Fixed & spherical-seat options
- Concrete, foam, metal testing
- ISO 604, ASTM D695 compliant
Bending Fixtures
Three-point and four-point bending fixtures for flexural strength and modulus testing of metals, plastics, composites, and ceramics. Adjustable span to accommodate multiple specimen sizes.
- 3-point & 4-point configurations
- Adjustable support span
- Hardened loading noses & supports
- ISO 178, ASTM D790, EN 2562
Shear Fixtures
Shear test fixtures for lap joints, adhesives, composites, and fasteners. Designed for pure in-plane shear loading with precision-machined alignment features to eliminate eccentric loading.
- Lap shear & Iosipescu configurations
- Adhesive & composite testing
- ASTM D1002, ASTM D5379
- Custom configurations available
Thread & Button Head Grips
Precision-machined threaded grip heads and button-head grips for machined shoulder specimens, studs, bolts, and fasteners. Accurate thread engagement ensures co-axial loading.
- M6 to M100+ thread sizes
- Metric & UNC/UNF threads
- For machined dog-bone specimens
- ISO 6892, ASTM E8 compliant
Peel Grips & Vise Grips
Peel test fixtures for 90° and 180° peel adhesion testing of films, tapes, laminates, and flexible packaging. Vise grips provide mechanical screw-tightening for a wide range of specimen types.
- 90° & 180° peel configurations
- Film, tape, laminate testing
- ASTM D903, ISO 8510
- Screw & quick-release vise grips
Custom Test Jigs & Fixtures
Fully custom test jigs, fixtures, and accessories designed and machined to your drawings, test standard, or performance specification. Prototype to batch quantities with complete dimensional reporting.
- From your PDF, DWG, or STEP files
- Any test standard accommodated
- Prototype & production quantities
- FAI report provided
Jaw Inserts & Accessories
Replacement jaw inserts in serrated, smooth, V-groove, and crosshatch patterns. Load cell adapters, universal coupling pins, specimen alignment guides, and grip-to-machine adaptors.
- Serrated, smooth & V-groove inserts
- Various hardness grades (40–62 HRC)
- Adapters for all UTM brands
- Quick turnaround for replacements
Test Standards We Manufacture To
Grips and fixtures compliant with international and Indian test standards
ISO Standards
ISO 6892 (metals tensile), ISO 178 (plastics flexure), ISO 604 (compression), ISO 8510 (peel), ISO 527 (plastics tensile), ISO 1421 (coated fabrics), and more.
ASTM Standards
ASTM E8/E8M (metals tensile), ASTM D638 (plastics tensile), ASTM D790 (flexure), ASTM D695 (compression), ASTM D903 (peel), ASTM D1002 (lap shear), ASTM A370.
DIN & EN Standards
DIN 51220 (testing machines), EN ISO 6892, EN ISO 604, EN 2562 (composites flexure), EN 10002 (metals tensile), and European aerospace material specifications.
TAPPI & Textile Standards
TAPPI T404, T456 (paper & paperboard), ASTM D5034/D5035 (grab & strip tensile for fabrics), ISO 13934 (textiles), and geotextile testing standards.
BIS / IS Standards
Indian Standards (BIS/IS) for metals, plastics, construction materials, and textiles. We accommodate customer-specified IS standards and industry-specific test codes.
Customer Specifications
Proprietary test standards, OEM-specific grip drawings, aerospace material specs (AMS, MMPDS), and any customer drawing or specification — we manufacture to your requirement.
Materials for Grip Manufacturing
Right material selection for strength, wear resistance, and corrosion performance
Alloy Steel (EN8, EN24, EN31)
General-purpose grip bodies and fixtures. EN8 for standard applications; EN24 for high-strength grips requiring toughness; EN31 for hardened jaw inserts (up to 60 HRC).
Tool Steel (D2, H13)
For jaw inserts and grip faces requiring maximum hardness (60–62 HRC) and wear resistance under repeated loading cycles. Ideal for high-cycle testing laboratory environments.
Stainless Steel (SS 304 / SS 316)
For grips used in corrosive environments, humidity chambers, salt spray testing, or food and medical applications where rust-free operation is essential.
Aluminum Alloy (6061 / 7075)
Lightweight fixtures, low-force grips, and accessories where weight reduction is important. 7075 offers high strength-to-weight ratio for demanding applications.
Brass & Bronze
Non-sparking grip components for explosive atmosphere testing, and bearing inserts or sliding components in fixture assemblies requiring low friction and corrosion resistance.
Engineering Plastics (PEEK, Nylon, POM)
Electrically insulating grip components, lightweight spacers, and low-force specimen holders. PEEK for high-temperature environments; POM/Delrin for precise sliding elements.
Industries & Applications
Precision grips and fixtures for testing laboratories and quality control across industries
Testing Laboratories & R&D
NABL-accredited and research laboratories requiring certified, accurate grips for materials characterization. Custom fixtures for novel material testing at universities and research institutes across India.
Automotive & Component Testing
Tensile and fatigue testing grips for steel, aluminum, and polymer specimens from Gujarat, Pune, and Chennai auto-component manufacturers. Weld and joint testing fixtures for quality control.
Aerospace & Defence
Precision grips for coupon testing of composite laminates, titanium alloys, and high-strength steel to AMS, MIL-SPEC, and MMPDS standards. Iosipescu and V-notch shear fixtures for composites.
Construction & Civil Engineering
Rebar tensile test grips (wedge and hydraulic), concrete compression platens, and geotextile testing fixtures. Compliant with IS 1786, ASTM A370, and EN 10080 standards.
Textiles & Technical Fabrics
Pneumatic and roller grips for tensile testing of woven fabrics, nonwovens, geotextiles, and technical textiles to ISO 13934, ASTM D5034/D5035, and TAPPI standards.
Packaging & Adhesives
Peel fixtures (90° / 180°), seal strength jigs, and film grips for testing flexible packaging, adhesive tapes, laminates, and heat seals to ASTM F88 and TAPPI T494 standards.
Why S.S. Engineering for Grip Manufacturing?
In-House 5-Axis CNC Machining
All grips and fixtures are machined in-house on our 3, 4, and 5-axis VMC centres and CNC lathes — no outsourcing, complete quality control from raw material to finished component.
Tight Tolerances, Every Time
Critical grip dimensions — jaw faces, alignment bores, thread engagement lengths, and seating surfaces — are machined and verified to ±0.005 mm using CMM inspection equipment.
Fast Lead Times
Standard jaw inserts and accessories: 1 week. Custom grips and fixtures: 2–4 weeks from approved drawings. Expedited manufacturing available for urgent laboratory requirements.
Competitive Indian Pricing
Transparent GST-compliant quotations in INR. Significant cost savings versus imported grips, with the same dimensional accuracy and material standards. Export invoicing available.
Full Dimensional Documentation
Material test certificates, dimensional inspection reports, and First Article Inspection (FAI) on request. Third-party inspection coordination available for export or quality-critical orders.
Application Engineering Support
Not sure which grip type suits your specimen or test standard? Our team assists with grip selection, specimen geometry, and fixture design from project enquiry through to delivery.
Request a Grip Manufacturing Quote
Send us your drawings, specimen dimensions, test standard, or grip type. Our team will review and respond within 24–48 hours with a detailed quotation.
Frequently Asked Questions
Common questions about our grip and fixture manufacturing services
What types of grips and fixtures can S.S. Engineering manufacture?
We manufacture a comprehensive range of precision grips and fixtures including wedge grips, pneumatic grips, hydraulic grips, vise grips, compression platens, bending fixtures (3- and 4-point), shear fixtures, peel grips, thread head grips, rope grips, and fully custom test jigs. All are CNC-machined in-house from engineering steels, stainless steel, or aluminum to your drawings or test standard specifications (ISO, ASTM, DIN, EN, BIS).
What test standards do your grips comply with?
Our grips and fixtures are machined to comply with a wide range of international and Indian test standards including ISO 6892, ASTM E8, ASTM D638, ISO 178, ASTM D790, DIN 51220, EN ISO 604, TAPPI, and BIS/IS standards. We can also manufacture to any customer-provided drawing or proprietary standard specification. If you provide the test standard, we ensure the fixture geometry and dimensional tolerances are correct.
Can you manufacture custom grips from our own drawings?
Yes — this is a core service. We regularly manufacture custom grips, jigs, and test fixtures from customer-supplied drawings in PDF, DWG, DXF, or 3D STEP/IGES formats. Our engineering team can also assist with design if you provide the test standard, specimen geometry, or performance requirement. Send us your files for a quotation within 24–48 hours.
What tolerances can you achieve for grip components?
Our VMC machining centres (3, 4, and 5-axis) achieve tolerances of ±0.005 mm on critical grip dimensions. Mating surfaces, jaw faces, alignment bores, and threaded features are machined and verified using CMM inspection equipment to ensure accurate load transfer and co-axial specimen alignment during testing.
Do you supply replacement jaw inserts and grip accessories?
Yes. We manufacture replacement jaw inserts in serrated, smooth, V-groove, and crosshatch patterns in various hardness grades (40–62 HRC). We also produce load cell adapters, universal coupling pins, specimen alignment fixtures, and machine-to-grip adapters. Provide us with the jaw dimensions, grip model, or a sample jaw for matching. Quick turnaround of 1 week for most standard inserts.
What materials do you use for grip manufacturing?
We machine grips from materials selected for the application: EN8/EN24 alloy steel for standard grip bodies; EN31 / D2 / H13 tool steel (hardened to 58–62 HRC) for jaw inserts; SS 304 / SS 316 for corrosion-resistant grips; aluminum 6061/7075 for lightweight fixtures; and engineering plastics (PEEK, POM) for electrical isolation or low-force applications.
How long does it take to manufacture custom grips?
Standard lead time for custom grip manufacturing is 2–4 weeks from approved drawings, depending on complexity and quantity. Simple jaw inserts or adapters are often completed in 1 week. Expedited manufacturing is available for urgent laboratory requirements. Contact us with your drawings for an accurate timeline and quotation.
Can you ship grips and fixtures across India and internationally?
Yes. We ship precision grips and fixtures pan-India from our Vadodara, Gujarat facility via reliable transport partners to all major cities including Mumbai, Pune, Delhi NCR, Bengaluru, Chennai, Hyderabad, Ahmedabad, and Coimbatore. International shipping via DHL, FedEx, and sea freight is available for export orders to the USA, Europe, Middle East, and Southeast Asia with full export documentation.
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