At Gromax, we design and build in-house progressive dies engineered for tight tolerances, high volumes, and downstream assembly. From prototype to Class A dies, we deliver precision tooling optimized for quality, speed, and long-term durability.
Precision tooling solutions for prototypes and production.
Tooling Built for Critical Industries
Quality management ensures tooling is built to spec, documented, and inspected for consistency—reducing downstream production risks.
Tooling projects for defense and aerospace protected under ITAR compliance from design through delivery.
Collaborate directly with die designers and tooling engineers to troubleshoot, optimize, and validate tool designs.
Tool steels and components supplied with certifications and traceability records—supporting regulated and mission-critical applications.
Type: Vertically integrated medical device manufacturer producing Class II surgical devices
Stage: Preparing for FDA 510(k) submission and Phase 1 clinical trials of a next-generation laparoscopic stapler
Team: Engineering team of 12 mechanical and manufacturing engineers, in-house assembly, outsourced stamping and forming suppliers
Primary Need: Required production-representative staples to validate form, fit, and function for clinical trial devices and pre-qualification testing—delivered within 8 weeks to align with regulatory filing timeline
Needed a progressive die to manufacture 0.020” thick 316L stainless steel surgical staples with ±0.001” critical dimension tolerance across staple crown and leg geometry
Required five forming stations: pierce, initial bend, coining, final bend, and part-off—with in-die deburring to eliminate manual post-processing
Die needed to deliver parts suitable for clinical assembly without additional secondary finishing
Compressed timeline driven by upcoming FDA submission deadline and clinical trial build milestone
Required full dimensional inspection and material traceability documentation for regulatory filing
Designed a progressive die integrating precision-ground punches, carbide inserts at high-wear pierce stations, and in-die coining to achieve required edge sharpness and surface finish
Performed die simulation and forming analysis to verify material flow, eliminate cracking risk at bends, and validate stress distribution in staple geometry
Built, assembled, and tested die 100% in-house, using wire EDM-cut die sections and custom backing plates for dimensional stability
Completed first-article inspection (FAIR) and CMM measurement reports, providing full dimensional validation and material certification package
Collaborated with customer engineering to adjust bend radius and leg reliefs, reducing forming load by 14% and improving strip layout for material yield
Delivered progressive die in 47 calendar days, meeting clinical trial build schedule
First production lot of 10,000 staples ran within tolerance on first press run, with no secondary finishing required
Enabled customer to submit production-representative parts with complete inspection documentation for FDA 510(k) filing
Reduced raw material scrap by 15% via optimized strip layout, improving pilot build cost-efficiency
Die transitioned directly into production use after validation, supporting ramp-up to annual production volume of 2 million staples
Start your die project with a team that knows precision stamping from the inside out.