The MAG-IAS Specht Horizontal Machining Center.
The machine offers linear-motor or ballscrew drives, CAT-40 through HSK-100 tool interfaces, six spindle options, four control options and three five-axis configurations to suit needs ranging from one-off work in job shops to agile machining lines.
The US-built machine is engineered around a box-in-box, moving-table design for low-inertia responsiveness and delivers accuracies up to 4 microns (0.00015in) with 260Nm (192ft.lb) full-torque cuts.
The Specht features: a 1.8m-wide footprint and conserves energy with no warm-up; multi-step sleep mode; regenerative drives; half the normal coolant requirements; and only one third of the air-extraction needs.
Featuring a maintenance-friendly design, it also offers front or rear spindle removal and a one-cabinet fluid management centre for grease, pneumatics, coolant and hydraulics.
Evolved from more than 1,000 HMCs fielded by MAG in the last five years, the Specht builds on five basic configurations with more than 100 options to deliver optimum performance at minimal cost, with highly customisable, yet upgradeable, machining solutions, according to the company.
The base machine begins as a 500mm- or 630mm-pallet machining module with a direct-drive B-axis table (500kg or 600kg/1,100lb or 1,323lb payload), absolute glass scales, a 10,000rev/min/15kW/CAT-40 (20hp) spindle, a 40-pocket tool disc and changing unit and Fanuc 32i control.
Directly coupled ballscrews deliver 60m/min (197ft/min) speed and 6m/s2 (20ft/s2) acceleration, while the moving table design eliminates column movement during critical machining operations for an accuracy of 5 microns (0.0002in) and a repeatability of 4 microns (0.00015in).
The Specht's one-piece cast-iron base and guarding are designed with near-vertical surfaces to ensure chip flow.
Standalone machines are equipped for self-contained chip and coolant management, while cell-based machines use individual pump-back units for central coolant systems.
Through-spindle coolant at 300lb/in2, MQL and 800lb/in2 coolant options are available.
The base Specht machine can be field upgraded with different spindles, tool changers or auto-load systems.
Options for dual ballscrews or linear motors increase thrust, stiffness, velocity and payload, with up to 11,000N (2,472lbf) Z-axis thrust, 120m/min (394ft/min) speed, 15m/s2 (49ft/s2) acceleration (1.5G) and an 800kg (1763lb) payload capability.
Linear motors permit circular and helical interpolation with boring-mill accuracy and a repeatability of 4 microns (0.00015in) and 3 microns (0.0001in) respectively, without complex tools.
Five-axis machine configurations combine B/A or A/B with single or dual ballscrews or linear motors.
A total of six MAG-built motorised spindle options are available for the Specht to meet cutting needs, ranging from high torque to high speed or combined high speed and torque.
The range includes high-torque units producing 6,000rev/min speed, 55kW (74hp) power and 260Nm (192ft.lb) torque or speeds to 16,000 with 30kW (40hp) power and 50Nm (37ft.lb) torque.
Spindles feature 80mm or 100mm (3.1in or 3.9in) hybrid ceramic bearings and closed-loop glycol cooling for durability and thermal stability.
Tool interface choices include CAT-40, CAT-50, HSK-63 and HSK-100.
The base MAG-built tool disc and changing unit offers sub-four-second 'chip-to-chip' tool changes and accommodates 40 CAT-40 tools or 26 CAT-50 tools.
With reliability proven in a number of installations, the disc allows direct tool change without a cam box or swapper arm, eliminating a maintenance point.
Tool capacity can be field upgraded with chains for up to 160 CAT-40 or 110 CAT-50 tools that can be loaded during the machine cycle.
The Specht's long Z-axis allows tools up to 550mm (21.5in) long to be used.
The MAG-built direct-drive rotary table is backlash free, requires no adjustment and produces 80rev/min for mill-turn machining.
The table's direct-mounted rotary encoder provides a seven-arc-second positioning accuracy.
Four-point pallet clamping ensures rigidity during high-thrust machining.
Pallet changes take eight to nine seconds, depending on machine configuration.
Control options for the Specht include Fanuc 32i and 31i, Siemens 840D or Bosch Rexroth MTX.
Software options include MAG's Freedom Elog web-based production management system, Freedom Eview and Omative Adaptive Control.
The Specht HMC is cell-ready and is available with numerous pre-engineered and proven part-handling systems, including pedestal robots, overhead gantries and robots, floor-level track-mounted robots and the Cincron fixture storage and delivery system.
MAG has delivered more than 150 Cincron systems that are in service around the world, integrating hundreds of machines, fixtures, hardware and software.
The company supports the machine with in-depth application-development experience based on many automotive-industry systems.
Capabilities include part/process development, DFM/DFA engineering, cutting tool design and process simulation, prototype production and process validation, tooling, metalworking fluids, operator training and maintenance programming.
