Used Knuckle Joint Presses for Sale

A knuckle joint (toggle) press uses a linkage mechanism that multiplies force as the slide approaches bottom dead center, delivering high sustained pressure at very low speed. An eccentric press applies force through the full stroke at roughly constant speed. Knuckle presses are preferred for cold forging, coining and sizing where high bottom-dead-center force and minimal slide velocity are critical.

Yes. Most machines in this category were used for cold forging, coining or sizing operations. Check guide clearance and die height adjustment range to confirm suitability for your specific process.

Current machines with full specifications are listed in the grid above. Availability changes as units are sold and new machines are sourced. Contact us with your tonnage, stroke and die height requirements and we will advise on current availability.

Original Russian-language manuals and electrical diagrams are typically available. We can arrange technical translation when source documentation allows it. CE assessment for installation is the buyer's responsibility, together with a qualified safety consultant.

Yes. TRIGA handles crane lifting, partial disassembly to comply with road transport weight limits, oversized-load permits and export documentation for presses up to 2500 ton and above.

Both operations run on the same knuckle joint or eccentric press platform. Coining sizes and calibrates a preformed part to precise final dimensions with light material flow. Cold extrusion forces the blank to flow into a new shape — heading, upsetting, backward or forward extrusion — at ambient temperature, which needs higher tonnage and a stiffer frame. TRIGA's Barnaul and TMP Voronezh knuckle joint presses are used for both operations depending on tooling and stroke setup.