RK Trading Company​

2 Manufacturing Lines Under 1 Roof

Sales, service, and support for CNC spring coilers, wire formers, and testing equipment used in spring manufacturing.

Spring Production Equipment

Herdon CNC Spring Coilers and
Wire Forming Machines

CNC machinery solutions for spring manufacturers, from coiling and wire forming to secondary operations.

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CNC Spring Coilers

Precision CNC coiling machines for compression, extension, and torsion springs designed for a wide range of production requirements.

Wire Forming Machines

Automated wire forming solutions for complex geometries, tight tolerances, and consistent, repeatable production.

The ATM 380 grinder from RK Trading

Grinders & Reels

Spring grinders and power payout reels designed to improve consistency, surface finish, and downstream efficiency.

U.S. Based
Parts & Service

We’re not across the ocean—we’re just around the corner, with second-to-none service and an extensive tooling and parts inventory, right here in the U.S. When you’re looking for technical expertise and real-life solutions in real time, we have the answers you need, when you need them. The upside for you? Less downtime.

Testing & Inspection

SAS Spring Testing and Measurement Systems

Confirm spring performance and dimensional accuracy with testing and inspection systems designed for repeatable, documented results.

Spring Testers

Compression and extension spring testing systems designed for accurate force measurement, repeatable results, and faster quality control.

Torsion Testers

Torque testing systems for torsion springs and torsion bars—specifically designed and built for consistent measurement, validation, and documentation.

Fatigue Testers

Life-cycle and durability testing systems to measure spring performance and fatigue over time, and to validate design and process changes.

Automated Systems

Automated testing, setting, sorting, and handling systems designed to reduce manual work and increase inspection throughput.

CTV 1600 Series, Axis-symetric Spring Vision Measurement System

Optical Measurement

Vision-based systems designed for rapid measurement of springs and wire forms, with accurate, consistent, repeatable results.

ALS SERIES-AUTOMATED MODULAR SPRING SETTERS

Spring
Setters

Spring setting systems for controlled pre-setting and load conditioning—improving consistency before assembly or final inspection.

About Us

RK Trading Company

RK has provided comprehensive spring and wire forming solutions since 1996. If you bend, form, coil, or grind spring and wire products, we have the equipment you need to compete today. From reliable Herdon machinery and SAS testing equipment to hands-on customer care, you can trust RK Trading.

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Years of excellence.

Over 90 percent of our sales are to repeat customers.