Pioneered and patented by L.H. Industries in the '80s, Autolok made the automatic interlocking of rotor and stator laminations a practical process in the real world of imperfect coil stock. The principles of Autolock - dynamic adjustment of the incremental skew angle and rotation of the stack to compensate for stock gamma - revolutionized lamination stamping. Over the years, Autolok has found favor all over the world and has become a motor industry standard.

At L.H. Carbide, lamination dies are our specialty. Around the world, we're known for our innovative engineering and design in lamination dies. In fact, both our customers and competitors rely on the technology and concepts we've pioneered. For dies that perform smoothly and produce products to exact requirements. For dependable tooling designed for long life, hassle-free performance, and ease of maintenance, there's only one name: L.H. Carbide.

For over 20 years, L.H. Carbide has designed, built, and produced lamination and non-lamination precision progressive dies for a variety of industries. From basic to highly complex configurations, small to massive in size, L.H. Carbide offers unparalleled accuracy with single-source responsibility. Whether we work with your stamping facility or run the dies in our own stamping operation, you'll benefit from our in-house control of the entire die-building process - from engineering to final inspecting - including simulating actual production conditions and proving your die at our facility prior to delivery.

With L.H. Carbide's rebuild service, you can extend the life of your tools. Or have them take on a new life of their own. Trust our extensive engineering and manufacturing expertise to refurbish or rebuild your tools, and restore them to their original - or even improved - specifications.

Pioneered and patented by L.H. Industries in 1999, Varilok grew as an extension of Autolok™ techniques, giving design engineers unprecedented control of laminated stack geometry in the Z axis, and allowing them to specify complex 3D geometric shapes for electromagnetic cores. This revolutionary lamination stamping, collating, and interlocking technology easily manages varying lamination sizes and shapes within the die, providing production efficiencies and exacting manufacturing accuracy for enhanced product performance. It also allows simultaneous production of multiple cores: 2-out, and even 4-out.