CNC boring milling machine SPEEDMILL B series

horizontalcolumn type4-axis

Overview
PAMA Speedmill B boring and milling machines combine high damping, dynamic axis performance and elevated spindle speeds with precise machining capability for medium and large components where horizontal machining is preferred.

Design and construction
The Speedmill B features a thermo-symmetric column with a centrally mounted head to maximize geometric stability and repeatability. Roller guideways on the X and Y axes optimise axis dynamics. The ram is guided inside the headstock by hydrostatic pads and is fitted with a Direct Drive boring bar. Both ram and boring bar include feedback systems that compensate thermal elongation, ensuring accuracy, rigidity and enhanced local vibration damping.

Thermal control, lubrication and kinematics
CNC attachment heads are thermally stabilised via controlled-temperature fluid recirculation. To achieve high speeds, precision and wear resistance of kinematic units, lubrication is provided by air-oil or climate-controlled oil recirculation systems.

Customization and software

• Wide range of milling or turning tables
• Wide range of tool magazines and tool & attachment head magazines

From a CNC standpoint the range can be configured with Siemens, Heidenhain or Fanuc controls.

Technical information (summary)
The PAMA Speedmill B range offers Y axis travels up to 5000 mm, ram travels from 1200 to 2000 mm and boring spindle diameters from 120 to 160 mm.

Working area (table)
X axis stroke (Column): 5000 mm; +N x 1000
Y axis stroke (Headstock): 2000 - 5000 mm
Z axis stroke (Ram): 1200 - 2000 mm
W axis stroke (Boring spindle): 600 - 1000 mm
Z+W axes stroke: 1800 - 3000 mm

HEADSTOCK - RAM (table)
Ram section: 430x430 - 500x500 mm
Boring spindle diameter: 120 - 160 mm
Spindle transmission: Direct Drive
Spindle power (S1): 66 - 82 kW
Spindle torque (S1): 1175 - 2494 Nm
Spindle speed: 4000 - 5000 rpm

LINEAR AXES FEATURES (table)
X, Y, Z, W axes rapid feed: up to 35000 mm/min

Notes
Machine structures are developed using finite element analysis to optimise mass and guarantee high static and dynamic rigidity and thermo-symmetry. The ram is guided by hydrostatic pads and the machine is equipped with advanced thermal compensation systems to ensure precision.