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Call us at 905-624-5536
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H.H. Roberts Machinery Limited
1324 Matheson Blvd E., Mississauga, Ontario, Canada. L4W-2Z7, Fax 905-624-9065
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HH Roberts / Topwell 5-GL and 5-RG
with 6000 RPM spindle
  • 12" x 50" table
  • 32" x 16" travels 7 1/2 to 15 Hp
  • vector drive head with your choice of back geared or direct drive. Gearless heads have two speed ranges set by shifting the belt on the motor pulley.  75 to 4,000 for higher torque and 100 to 6,000 rpm. .
    Back geared ranges 15 to 750 and 75 to 6,000.
  • # 40 taper spindle can accept #40 milling machine, Cat-V-40 or BT-40 CNC tooling
  • hardened and ground X and Y axes with Turcite counterslide on saddle
  • Align 500P power feed with rapid traverse on table
  • central lube
  • Weight approximately 3,750 lb
  • These vector drive heads were developed in house for both Bridgeport clone R-8 machines and this heavier #40 spindle machine. Hundreds have been sold as a replacement head for older Bridgeport's and Taiwan made Bridgeport clones. Click here for details
  • Acu-Rite , Fagor and Heidenhain digital readouts are optional as are full coolant systems with chip pans and side splash guards.
Topwell 5-GL knee mill with electronic variable speed 6000 rpm spindle
Click here to download our knee mill catalogue.  
TW-7-5-head
  Above is the VF version of this machine. It has CNC style servo feeds on X and Y axes giving independent variable feeds on each, plus rapid traverse.  It also has a rapid traverse on the knee elevation. Digital readout is standard equipment as well. Ballscrews, turcite counterslides, encoder feedback on X and Y make it ready for a fast economical CNC upgrade in the future.  For details CLICK HERE

Specifications 5-RG 5-GL
Spindle speeds L 15 to 750
H 75 to 6,000
75 - 6000
Table size 12" x 50" or 42"
10" x 50" or 42"
Table travel 33" with 50" table
or 25" with 42" table
travel is reduced with power feed fitted.
Cross travel 413 mm
16.25"
Knee travel 406 mm
16"
Quill diameter 106 mm
4.17"
Quill travel 140 mm
5 1/2"
Ram travel 670 mm
26.375"
Spindle motor 5 Hp continuous  /   7-1/2 Hp 20 minutes
Spindle taper # 40 Cat-V, BT or NMTBA
Quill power feeds 0.043, 0.084, 0.14 mm / Rev.
0.0017,  0.0033, 0.0055" / rev
Weight 1650 kgs
  3,630 lbs