The competitively-priced a81 horizontal machining center (HMC) from Makino is dedicated to helping manufacturers drive costs out of their operations. The a81 features the largest pallet yet in the 1-Series line, providing unparalleled productivity and reliability for 630 mm pallet HMCs.

a81 Benefits and Features

The Makino a81 is loaded with features that help manufacturers decrease operational costs, including swift axis movement and faster spindle acceleration/deceleration than other HMCs. Out-of-cut time is diminished because of the machine’s standard ring-type, 40-tool magazine with short seek times. This is complemented by a quick automatic tool changer that has a fast tool-to-tool time (1.7 seconds).

Makino’s a81 is capable of handling a payload of 2,640 pounds (1,200 kg). It is fitted with a 24.8-inch (630-mm) pallet and a standard 50 taper, 10,000-rpm spindle with exceptional acceleration characteristics and minimal vibration. The spindle is equipped with a 300-psi through-spindle coolant system.

Rapid traverse rate of the a81 is 2,362 ipm (60 m/min), and the cutting feedrate also is 2,362 ipm (60 m/min), facilitating high-speed machining to reduce cycle time. The a81 is capable of simultaneous B-axis movement with tool change and X-, Y-, Z-axis travel of 35.4 x 31.5 x 38.2 inches (900 x 800 x 900 mm).

The a81’s footprint is 138 x 215 inches (3,460 x 5,370 mm), which is more compact than competitive machines and designed for easy maintenance access around the entire perimeter. High-volume chip evacuation is facilitated by a wide-center trough with a standard rear discharge lift up chip conveyor that includes a coolant leakage protection design.

Other features include an automatic pallet changer with safety guard, a standard three-point support system, an ergonomic swing operator control panel, a safety-designed four-layer protective operator door window and flood coolant and overhead shower coolant.

The a81 comes standard with Makino’s proprietary, next generation Geometric Intelligence (GI) servo control with Radical Mode. GI helps provide the lowest cycle times achievable, while maintaining accuracy and meeting the customer’s Cpk requirements.

For more information on the a81 and other Makino equipment, visit the Makino Website at www.makino.com. Learn more “Trade’s Secrets” on Makino technology and how it can help you improve production quality and drive costs out of your company’s aerospace processes.

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