F9A Boring Machine

This heavy-duty machine was designed for standard and large capacity machine work.

The spindle diameter has been increased to 3.25?(82.5mm) for extra heavy duty machining up to 9? (230mm) bore size. Large sleeve cuts can be taken at high spindle RPMs, and in many blocks, one pass sleeve cuts are possible to increase productivity. Programmable counterboring operations with the A model eliminate guesswork and provides added timesaving. The massive one-piece Meehanite, stress relieved, precision machined base casting allows the fixturing of large diesel blocks such as Cummins 855, Detroit 12V71, Mercedes 444V12 and odd jobs such as gear cases and connecting rods. The F8 machines can also handle small jobs down to 1.5? (38mm) bore diameter with optional cutterheads.

Features:

• Speed
  All three models of FA Series machines have the same high performance AC servo motor, delivering up to 1200 RPM. Independent feed control allows you to change the feed rate from .001” (.025mm) to .012” (.3mm) per revolution.
• Accuracy
  The FA Series uses a precision ground ball screw to control feed rate and cutter position. This allows the machines to repeat cutter position accuracy to .0002” (.005mm). The FA Series have digital programmable cycles. Boring depth can be programmed to .0001” (.0025mm).
• Strength
  Rottler has increased the size of the F8A spindle to ensure the best possible bore geometry at high spindle speeds. The Rottler proven spindle and bearing design gives you a rigid machine capable of making heavy sleeve cuts for a life time. The F7A spindle has been reduced to allow the machining of compact engines, motorcycles, marine blocks, etc.
• Flexibility
  The F Series machines have variable feed rates that allow you to maximize the performance of the machine. Increase spindle feed rates for simple oversize bores. Decrease feed rates for sleeve cuts or counter bores. The F8 machines can bore from 1.5” (38mm) to 9” (230mm) in diameter, with optional cutterheads. The F7 machines can bore from 1.5” (38mm) to 5” (127mm). Special carbide tools are available for counterboring, chamfer cutting, offset boring, and O-ringing.
• Automation
  The A models have programmable boring cycles and automatic centering cycles. Both models will store up to 100 different boring programs. Each program stores boring depth, spindle speeds, and feed rate. Automated cycles reduce costly errors while freeing operators to perform other tasks.
• Reliability
  The F Series machines use a high-speed, cogged belt drive system. This, and the use of two independent motors to run the spindle speed and feed, entirely eliminates the gear box. With fewer moving parts, and a superior design, the F Series becomes a much more reliable boring bar than other designs of equipment
• Cost Savings
  The high speed Rottler F Series machine can bore a block in half the time that other models of boring machines require. New insert technology is producing long lasting, inexpensive inserts which are capable of handling these high speeds and feed rates, with the same cost per insert as previous styles. Inserts do not require sharpening and the low cost of these tools makes them the ultimate choice for boring cylinders.

Specifiations:
Bore Capacity with Optional Cutterheads: 1.5” to 9.0” 38mm to 228mm
Spindle Speed RPM: Variable 100 to 1200 RPM
Feed per Revolution: Programmable Feed Rates .001 to .012 inches .025 to .300 mm per rev.
Spindle Travel Vertical: 15” (381 mm)
Workhead Travel Horizontal: 50” (1270 mm)
T Slot Machine Base Table 54” x 21” (1370 mm x 530 mm)
Spindle Taper to Machine Base: 26” (670 mm) 26” (670 mm)
Floor Space Required: 64” x 46” (1625 mm x 1170 mm)
Spindle Motor: 3.3 HP 2.5kW
Air Requirements: 1 cfm @ 90 - 100 psi
Power Requirements: 208-240 V, Single Phase 50-60 HZ, 30 Amp
Shipping Weight (excluding Fixtures & Parallels): 4400 lbs (2000 kg)