Makino’s Uj series of WEDM machines, the U32j and the U53j, take accuracy and finish capabilities to a higher level. Targeted to applications in precision plastic injection molds, engineered plastics, precision stamping tooling, and medical and micro manufacturing, these machines are capable of producing geometric accuracies of ±0.00008” to 0.00012”, and surface finishes down to 0.8 μmRy in tool steel and 0.5 μmRy in carbide. Static axis accuracies of 3 μm for straightness and 4 μm for squareness and parallelism are delivered from the factory.
These figures are achievable due to the mechanical accuracy and technology advancements built into each machine. The stacked cube design of the Uj series eliminates any possibility of overhang of any cast units when the axes are run to their full travel limits. This helps maintain straight, precise movement while eliminating droop as the axes move through their full travel. X and Y axis ball screws are 32mm, anchored at both ends, and laser aligned to high precision linear motion guides. As a testament to how well Makino WEDMs are built, we offer a limited 10 year or 20,000 hour ball screw warranty on these machines.
Using an improved Automatic Wire Threading system, the Uj Series machines will perform AWT of 10 seconds in high speed mode, and 15 seconds in fine hole mode. Uj series come standard with Makino’s Split Precision V-guides which are covered by a 12,000 hour warranty. Also available are PICO Precision wire guides, recommended for auto threading holes smaller than 0.025” diameter, and/or with hole centers closer than 0.060”. PICO Precision wire guides are also recommended for machining complex, variable land details in precision stamping work.
An advanced wire drive system, coupled with the mechanical accuracy of the machine and BellyWizard technology, allow the Uj machines to produce straighter parts, faster, while using up to 50% less wire than other machines in the class.
The Uj series machines come standard with a three sided drop tank, fully accessible from all three sides. With a full color, 15” touch screen monitor and fully functional remote hand box with digital readout, the Uj series machines are designed to be user friendly and easy to set up and operate.