New 5-Axis Machining Center Provides Precision and Versatility for Processing Smaller Workpieces
From Mitsui Seiki USA Inc. (Franklin Lakes, NJ) , the new PJ 303X 5-axis machining center provides precision and versatility in processing of workpieces up to 230 mm (9″) in height, 280 mm (11″) in diameter, and 20 kg (44 lbs.) in weight.
Posted: August 11, 2021
The machine’s X-, Y-, and Z-axis travels are 300 mm, 325 mm, and 200 mm (11.8″, 12.8″, 7.9″), respectively. A-axis rotation is +40˚ to -100˚, and the C-axis rotates a full 360˚. High-speed linear motors move the X-, Y- and Z-axes, while the rotary axes employ direct-drive motors. Rapid traverse speed for the X-, Y-, and Z-axes is 20 m/min (66 ft/min).
A 50,000-rpm, HSK-E25 taper spindle offers high-speed machining capability. An automatic tool changer provides tooling versatility by storing up to 24 tools as large as 40 mm (1.57″) in diameter and 120 mm (4.7″) in length.
To maximize precision, the PJ 303X’s sliding machine surfaces are hand-scraped.
Advanced spindle thermal displacement technology is standard, including a symmetrical gantry column structure that accommodates thermal deformation fluctuations and a thermal compensation mechanism for the machine spindle/head.
Operator-friendly features further enhance precision, including a 380 mm (15″) color display with touch panel capability that can be moved to the most convenient position relative to the work envelope. The machine’s double-stage rotary door provides wide access for visibility and setup.
The PJ 303X’s takes up the following floor space: 1,755 mm (5.75′) W × 2,370 mm (7.77′) L × 2,655 (8.7′) H and weighs about 4,500 kg (9,900 lbs.).
“The compact PJ 303X machining center provides high precision, speed, and versatility for the processing of an important range of part sizes across a wide variety of applications,” said Bill Malanche, chief operating officer of Mitsui Seiki USA.
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