Giddings&Lewi PT SERIE Horizontal boring machine

Giddings&Lewi PT SERIE Horizontal boring machine

More than 100 Years of Boring Mill Expertise Built into Each Machine
• Major machine components designed to optimize rigidity and cutting capabilities.
• Linear scales and thermal compensation are standard resulting in highly accurate machines.
• Productive large capacity machining with live spindle, responsive axis drives and powerful headstocks.

Configure the Machine to Fit the Job
The modular construction of G&L boring mills allows manufacturers to choose the best machine design for the job. Among the choices are:
• Table styles
• Spindles
• Controls
• Travel options
• Attachments

Robust Bed and Saddle
• One-piece column base and bed provides a rigid machining platform.
• Saddle supports table over its full travel.
• Bed and saddle are gray iron castings.

Rigid Column
• X-bracing and wide column way spread adds structural integrity to resist deflection and minimize vibrations.
• Column is a gray iron casting.

High Performance Drive/Way System
• Linear scale feedback standard.
• Proven way system with hardened and ground preloaded roller guideways.
• Hydraulically preloaded ballscrews for superior axis stiffness.
• Large zero-backlash ballscrews for smooth axis motion and thrust performance.
• Special drive design maintains high torque and impressive stiffness even at high traverse speeds and feed rates.
• Digital servo drives are sized sufficiently to handle the headstock positioning and weight influences. The results are faster positioning speeds, enhanced contouring performance, increased thrust and dependable accuracy.

Maintenance-Friendly Services Area Fluid levels, gauges, and maintenance functions are clearly marked and centralized on one floor-level panel.

Protective Way Covers
Steel telescoping way covers protect ways, utility carriers, scale feedback, and ballscrews from damage and contamination.

Four-speed Headstock
• Two spindle sizes available:
130 mm with 45 kW motor and 1000 mm travel.
155 mm with 56 kW motor and 1250 mm travel.
• 3500 rpm spindle speed.

Two-speed Headstock
• 45 kW spindle drive.
• 4000 rpm spindle speed.
• 800 mm spindle (quill) travel.

Hydra-Rib Improves Performance
Standard on the 4-speed headstock, the Hydra-Rib variable preload taper roller bearings offer high rigidity at low speeds. At higher speeds, the preload automatically decreases to reduce heat in the bearing, resulting in greater thermal stability and longer bearing life.

Exclusive Spindle Growth Compensation
• Z-axis thermal compensation software dynamically offsets spindle growth maintaining tight accuracies.
• Algorithms control spindle gauge line variation to less than 0.038 mm deviation over an average eight-hour cycle.
• Headstocks have oil lubrication systems.
• Four-speed headstocks have chiller units.

Choice of High-Performance Control
Siemens Sinumerik 840D, Fanuc 310i, or Heidenhain TNC 530
• Color display.
• 3.5" Floppy disk drive.
• Minimum CNC user part program and tool offset memory:
Siemens 1.0 MB, Fanuc 126 KB.
• Minimum hard drive: Siemens 2.0 GB, Fanuc 10.2 GB.
• Total Heidenhain memory: 6.0 GB.
• Two RS 232 ports.
• Rigid tapping.
• High-level programming capability (variables and parameters).

Additional Options
• High-pressure coolant through-the-spindle
• Chip conveyor
• Tool probes
• Part probes

Accessories and Attachments
Contouring heads
Right-angle heads
Engineered attachments
Spindle supports
Angle plates

Rotary Table
• Standard built-in rotary table featuring:
- Tapered roller radial bearings.
- Preloaded hydrostatic axial bearing which
adds stiffness for heavy-duty, precise cutting.
• Heavy-duty worm gear drive with servo lock and
mechanical clamp

Optional Enclosures Meet CE Standards
Features include:
• Safety door interlocks.
• Enclosure of entire work area for chip and coolant containment.
• Open top for easy part loading.
• Capacity for large part swings.
• Floor-mounted.
• Available for all boring mill models.

PT Series Plain Table Horizontal Boring Mills Giddings & Lewis Plain Table Horizontal Boring Mills are the machine of choice for producing a wide variety of parts. Flexibility is the hallmark of this configuration. The capabilities of the Plain Table model may be readily expanded with rotary tables, milling attachments, or a number of other accessories.

RT Series Rotary Table Horizontal Boring Mill Giddings & Lewis Horizontal Boring Mills with built-in contouring rotary tables offer the versatility of an additional axis, making them well-suited for prismatic parts requiring work on multiple sides.

MC Series Horizontal Boring Mill Offering high performance and versatility, the MC Series adds machining center capabilities to Giddings & Lewis Horizontal Boring Mills. Automate large part production and reduce non-cutting time with the standard heavy-duty pallet shuttle system and tool changer. Multiple pallet configurations are available.

Cincinnati Technologies is a group of leading companies specializing in providing technology-driven solutions for the aerospace, construction equipment, oilfield equipment, power generation, and general machining markets. With more than two centuries of combined experience, Giddings & Lewis, Cincinnati Machine, and CL Automation offer a broad line of standard and custom equipment designed for optimized productivity.

Giddings & Lewis Machine Tools
Products: horizontal boring mills, vertical turning centers, and large horizontal machining centers.

Cincinnati Machine
Products: composites processing equipment, profilers, routers, and a broad line of both large vertical and horizontal machining centers including 5-axis and cells.

CL Automation
Products: flexible, custom, and lean, synchronous and non-synchronous assembly and test systems.

Maintenance Technologies
Maintenance Technologies delivers the industry's most comprehensive service and support including parts, rebuilds, and retrofits for the companies of Cincinnati Technologies.

Cincinnati Technologies and Maintenance Technologies are business segments of MAG Industrial Automation Systems.