MESIN BUBUT 90" X 52' 5" BERTRAM (Niles) Lathe
Saturday, September 5, 2009
Specifications:
Max, Swing over Bed: 90"
Max. Center Distance: 52' 5" (with right end of tailstock flush to end of ways)
Faceplate: 60" 4-Jaw Chuck
Speeds: 16
Speed Range: 1.85 - 59.3 RPM (Var Speed Control added)
Controls: Push-Button Stop-Start Forward-Reverse-Jog
Threading: Full length
No. of power Feeds: 48
Feed Range: LONGITUDINAL, from .011" - .628"
CROSS, from .007" - .400"
No. of threads cut: 48 (w, 3 change gears. Others also supplied)
Threading range: From ¼ - 14 tpi (incl. 8 ½)
Spindle Bore: 2-3/4"
Steady Rests: Yes, Roller type: 66" Ø
50" Ø
30" Ø
Carriages: Heavy Duty, with Factory risers, central pressure
lube aprons, and with 4 side Toolblock clamping, on top
compound, on graduated swivel risers, mounted on main
crosslides. Motorized Rapid traverse on front of apron.
Tailstock: Offset geared-feed type for ease of use
Quill size: # 7 Morse Taper
Offset travel: Cross travel offsets up to 7" (for long tapers)
Live Center: Yes (almost new)
Construction: HEADSTOCK: standard countershaft type layout. Main
gearbox with Quick-Change selection of Feeds, Speeds and
Threads; Full motorized lubrication to main bearings,
gearbox etc. Full length leadscrew has take-up adjustments
for play etc.
BED: Two piece: 10" W. Flat ways, some scoring, but
easily re-surfaced.
Main Motor: 40 HP 3 Ph @ 875 RPM (larger easily fitted)
Dimensions: 64'6" (on floor) + cable recoiling reel
109" High + Levelling jacks (up to 7" extra if needed)
Weight: 35 - 40 Tons (est.)
Lathe is Equipped with:
* Rapid traverse
* Full-length threading to very large pitches
* Two piece bed & lead screw for ease of shipping & assembly
* No pits
* 3 Large Roller Steady Rests
* 60" 4-Jaw chuck / Faceplate
* Large & Heavy Duty
NOTE: JOHN BERTRAM & Sons, Ontario, built larger, heavy-duty and precise
machine tools until the 1960's. Parts are still available. Many major American machine
tool names of the mid-twentieth century were also built in Canada, and in many Bertram
versions, they were IMPROVED on the original design. Examples are Niles-Bertram,
Cincinnati-Bertram & Acme-Bertram etc. In MOST CASES, the BERTRAM version
was better built, often because the improvements were not yet incorporated into the
original American design.
Price: . . . . . . . . . . . . . CALL
