Barber Colman 16-56 Hobber w/Extended Support

Barber Colman 16-56 Hobber w/Extended Support

Gear Hobber

Brand:Barber Colman


Category: ,

Barber Colman 16-56 Hobber, Mechanical machine with extension support.

This Barber Colman long bed mechanical gear hobbing machine is a rare commodity because of it very long length of cut. It is suitable for making very long spline shafts or shaft parts with gears or splines at either end or in the center. NOTE- This machine has a desirable extension for the worktable through bore to hold extra long shafts which protrude through the worktable bore.
Manufacturer Barber Colman
Model 16-56
Serial Number 4380
Year of manufacture 1971
Mechanical Specifications
Pitch rating(Ideal Conditions) 6 DP 4.233333 Mod
Maximum workpiece diameter 16.000 in 406.4 mm
Maximum facewidth 13.000 in 330.2 mm
Maximum radial center distance 9.500 in 241.3 mm
Minimum radial center distance 1.250 in 31.75 mm
Maximum axial travel 15.000 in 381 mm
Maximum distance table face to tail center 80.000 in 2032 mm
Maximum distance table face to C/L of hob 59.500 in 1511.3 mm
Minimum distance table face to C/L of hob 3.500 in 88.9 mm
Worktable diameter 7.250 in 184.15 mm
Workhead spindle bore 4.188 in 106.3625 mm
Index worm gear diameter 12.700 in 322.58 mm
Worktable Starts 2 Threads
Maximum hob diameter 5.000 in 127 mm
Maximum hob length 5.000 in 127 mm
Maximum hob shift travel 3.500 in 88.9 mm
Maximum number of teeth 300 Teeth
Minimum number of teeth 5 Teeth
Maximum swivel angle -45 deg 45 deg
Length 129.250 in 3282.95 mm
Width 31.875 in 809.625 mm
Height 72.500 in 1841.5 mm
Main Motor Power 2 HP 1.5 kW
Machine Weight 9300 lbs 4218 kg
Plant power 480 VAC 60 Hz
Air operated tail center
Automatic hob shift
Extended rear overarm with tailstock
Double Thread Index Worm (Standard Accuracy)
Relay Logic
Optional Machine Recertification Program
All broken electrical wires and cables will be repaired
All cycles will be tested and verified as fully functional
All defective controls will be replaced or repaired
All defective sensors will be replaced
All features will be tested and verified as fully functional
All filters will be changed
All worn hoses will be replaced
Coolant system checked for problems
Coolant tank and chip collection system cleaned
Hob head will be checked for problems
Hydraulic system drained and cleaned
Machine will be thoroughly cleaned
Ways and gibs checked for problems
Work table drive system checked for problems
Machine Includes
Integral coolant tank, no conveyor
No hob arbor. (One can be quoted additionally)
Assortment of change gears
Two copies of the operations manuals
Two copies of the maintenance documentation
30 Day return warranty on the machine
The aforementioned description and listing of specifications and accessory equipment is correct and accurate to the best of our knowledge. However, it should not be considered binding in any regard, as we reserve the right to change and/or alter same without prior notice. Consequently the buyer is responsible for confirming same, upon physical inspection and inventory of the machine(s) and all related accessory equipment.
Serial NumberSN 4380
Max Diameter Gear16"
Max Diameter Pitch6.0DP (4.23 Mod)
DimensionsL 129.25 " (3282mm) x W 31.875" (809.6mm) x H 72.5" (1841.5mm)
Weight9300lbs (4218kg)