New 24”x14”x18” Acra Vertical Machining Center with Fagor 8055I Controller

New 24”x14”x18” Acra Vertical Machining Center with Fagor 8055I Controller with the following features:

Hardened and Ground Box Ways

• All guide ways are induction hardened then precision ground.

Meehanite Cast Iron

• Meehanite cast iron is used on all structural components. Finite Element Analysis (FEA) is used to optimize the structure for rigidity.

No Table Overhang

• A wide saddle fully supports the worktable throughout the travel.

Base Casting

• The base is a rigid one-piece casting. Heavy internal ribs are used to achieve maximum stiffness.

Precision Hand Scraping

• All mating surfaces are precision hand scraped to increase the flatness and improve geometric accuracy (straightness and Squareness) of the whole assembly scraping the base casting where the column mounts is shown.

Turcite B

• Turcite B is bonded to all sliding surfaces. Oil grooves are machined and then hand scraped to produce an excellent bearing surface. Note that even the mounting surfaces for the ball screw nut are hand scraped. This assures that it is square to the ball screw and guide ways.

Ball Screws

• Each axis is driven by a high precision double-nut ball screw that is centered between the guide ways. The ball screws are pretension and anchored at both ends with angular contact thrust bearings. Double-anchored and double-nut ball screws greatly increase machining rigidity and allows for much heavier cuts. Ball screws using single nuts or ones that are not pretension and anchored at both ends will have much greater play and backlash which can lead to problems with chatter and accuracy.

Separate Rollout Coolant Tank

• A large separate roll out coolant tank is used to prevent heat in the coolant from transferring to the machine base casting. 42-gallon capacity coolant tank with standard chip bin is shown

Chip Coolant Flush System

• To keep chips from building up inside the machine enclosure, coolant is pumped from the sides (inside the enclosure) to flush chips down to the chip conveyor or chip basket.

Large Side Doors

• Both sides of the machine enclosure have large removable doors. Long workpiece can be loaded through the sides. The door openings are large enough to allow full “Y” axis travel with long workpiece extending through the sides

Air Reservoir Tank

• An air reservoir tank with alarm is used to stabilize the incoming air pressure and volume.

Automatic Lubrication System

• Automatic lubrication with alarm is provided to all ways and ball screws. Lubrication oil is delivered by metered piston distributors to precisely control the volume of oil.
  Fagor 8055i Controller

Specifications

• X Axis Travel: 24″
• Y Axis Travel: 14″
• Z Axis Travel: 18.1″
• Spindle Nose to Table: 2.8 -20.9″
• Spindle Center to Column: 16.3″
• Table Area: 27.6 X 13.78″
• Floor to Table: 32.9″
• Max Workpiece weight: 770 Lbs.
• T-Slots (Number x width x pitch): 5 x 0.6 x 2.5
• Spindle Taper: CAT-40
• Spindle Speed: 10,000 RPM
• Spindle Motor (const. / 15 min): 10 / 15 HP
• Spindle Torque (15-minute rating): 45@1,500 rpm Ft./Lbs.
• Transmission: Belt
• ATC Type: Armless
• Tool Capacity: 16
• Max Tool Diameter: 3.7″
• Without Adjustment tool: 5.9″
• tool Length: 11.8″
• Max Tool Weight: 15.4 Lbs.
• Tool Change Time (tool to tool): 2 sec
• Tool Change Time (chip to chip): 8.1 sec
• Method of Tool Selection: Address Code
• Rapid Traverse: X/Y; 787″ ipm / Z; 709″ IPM
• Cutting Feed Rate: 0.04-393.7″ IPM
• Transmission: Direct Drive
• Ball Screw Diameter / pitch: 1.3″ / 0.4
• thrust: X/Y: 3,390 Lbs. / Z; 7,167 Lbs.
• Positioning Accuracy: ± 0.0002″
• Repeatability Accuracy: ± 0.0001″
• Coolant Tank Capacity: 42 Gal
• Coolant Flow: 40 Gal/Min
• Electrical: 220V/60 Hz: 3 Phase /15 KVA
• Air: 5 CFM @ 100 PSI

Standard Equipment

CNC Controller

• Fagor 8055i with 8”.4 color LCD remote jog handle (MPG)
• PCMCIA memory card slot RS232 port
• 4 spare M codes

Spindle

• CAT- 40 Taper
• 10,000 RPM - 15 HP

Automatic Tool Changer

• 16 station armless
• Coolant system
• 42 gallon roll out tank Flood coolant system
• Base coolant flush system (internal chip wash)

Machine Construction

• All Meehanite cast iron components are precision hand scraped on all structural components
• Full metal enclosure with removable side doors full metal way covers
• Hardened & Ground Box Ways on all axes
• Double anchored, pretension, double nut ball screw
• Rigid tapping
• Auto-lubrication system with alarm
• Halogen work lamp
• Air reservoir tank alarm
• 3 tier status light
• Tool kit
• Spindle chiller
• Chip conveyor
• Leveling bolts and pads
• Fagor control and operator’s manuals