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Lathe, metal (Challenger 1660G) ID:46

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46.jpg
Type Metal lathe
Make/Model Challenger 1660G (a.k.a. Birmingham LUX 1660G and YCL-1660)
Serial number ??
Original owner Protospace
Loan status Owned by Protospace
Arrival date 2015-12-22
Location Metal shop
Functional status Needs Work: needs to be cleaned and set up
Usage permissions Open to full members
Certification Certification Required: lathe training or (upcoming as of 2015-12) lathe/mill training
Wiki-ID 46
Label 1.0" 1.5" 2.0"

Specifications

All from the 1640T/1660T page listed in the Documents section unless noted.

  • Dimensions: 29" deep × 72" long × ?? tall (according to John W)
  • Mass: ~4000–5000 lbs
  • Motor: 7.5 hp, 3-phase, 220 V
  • 36–1800 RPM spindle speed in 12 steps
  • Capacities
    • Swing over bed: 16"
    • Swing over cross slide: 10"
    • Distance between centers: 60"
    • Swing in gap: 60"
    • Width of bed: 24"
  • Headstock
    • Spindle nose: ASA D1-6
    • Spindle bore: 2 1/16" or 2 1/8"
    • Spindle taper: MT 6
    • Spindle speeds: 36, 60, 82, 93, 158, 215, 302, 510, 695, 786, 1328, 1800 rpm
  • Threads & feeds
    • Imperial threading: 2–72 TPI (45 kinds)
    • Metric threading: 0.2–14mm (40 kinds)
    • Module pitch threading: 0.3–3.5 M.P. (18 kinds) (for making shafts for worm gears)
    • DP threading: 8–44 DP (21 kinds)
    • Longitudinal feed range: 0.002"–0.04" ipr
    • Cross feed range: 0.001"–0.02" ipr
  • Carriage
    • Cross slide travel: 8 1/4"
    • Compound slide travel: 5 1/4"
  • Tailstock
    • Center taper: MT 4
    • Quill travel: 6 1/4"
    • Quill diameter: 2 1/16"
  • Coolant pump
  • Safety foot brake

Tooling

Short Description Shank Size Typical Insert Types Long Description Photo Manuf Code ANSI ISO Replacement Screw Type Manufacturer New Price Condition Notes
Grooving Insert Holder 3/8 " GIE-7 Right Hand, 4.5" long, grooving, parting and turning tool   THE-7-3/8-R Nicole $110.7 Good
Boring Bar 3/4 " CCMT33x, CCxT33x Boring bar, RH, 7" (174 mm) long Poor Damage reduces insert support. Missing insert screw.
Boring Bar 3/4 " CCMT33x, CCxT33x Boring bar, RH, 5 3/4" (144 mm) long Poor Damage reduces insert support. Missing insert screw.
Boring Bar 3/4 " CCMT33x, CCxT33x Boring bar, RH, 4 7/8" (121 mm) long Serviceable Missing insert screw.
Boring Bar 1" CCMT33x, CCxT33x Boring bar, RH, 8" long Fair Missing insert screw.
Threading Insert Holder 1" Full form or partial form. See notes. Threading insert holder SER 1000 M16 Iscar US$158.62 Fair Scuffing. See manufactures documentation for insert selection.
Triangular RH, G Insert Holder 3/4" TNMG43x, TNxG43x Triangular RH, ANSI G Type MTJNRS 46- 4 D.jpg MTJNRS 46- 4 D Valenite Serviceable ANSI shank numbers are flipped. Damaged shank. Shank has been machined.
Triangular RH, J Insert Holder 3/8" TNMG32x, TNxG32x Triangular RH, ANSI J Type TBR12 3/8 I.C. Carboloy Fair

Documents

History

This lathe was bought by Protospace using funding approved for the purchase of new machine tools at the December 2015 members' meeting. It was picked up and brought to Protospace on 2015-12-22 along with the ACRA mill and the new 80-gallon air compressor. It replaces Kyle Paavola's lathe; it has equivalent capability. It came with the following accessories:

  • 3-jaw chuck
  • 4-jaw chuck
  • Big steady rest
  • Taper attachment
  • 40-position tool post and one tool holder with a carbide tool holder in it
  • Live center
  • A carriage stop with a micrometer
  • Coolant pump
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