HK/HG
Oil Country Lathes

Overview

The HK and HG models are the heavyweight champs of Kingston's manual line. Available in 12.5” and 14.7” spindle bores, respectively, the HK and HG thrive under the most demanding of work conditions. The HK (available in 30” or 34” swing) consistently leads the industry in heavy-duty oil country applications—with the shorter 30” swing being the most popular for its lower center of gravity and maximum stability during heavy cutting—while the larger HG is available in swing sizes up to 40”. These models are equipped with a powerful 20 HP Mitsubishi inverter-driven main motor (6P) and a hydraulic braking system, with a semi-automatic air threading attachment (complete with taper) as a popular option. Kingston's commitment to building powerful, big bore, heavy duty machines is legendary; the HK and HG are Kingston’s maximal efforts – showcasing our largest spindle bore sizes, heaviest loading capacity, and massive amounts of torque. The HK and HG come front-and-rear-chuck ready (A2-20 spindle nose), with lengths from 120” to 280” between centers. 

Standard Features

  • 20 HP, 230V (only), 3 Phase, 6P Motor and Electrics Including Motor Drive Arrangement with Inverter & Hydraulic Brake
  • Spindle Bore: HK 12.5” / HG 14.7”
  • Spindle Nose: ASA-A2-20
  • 16 Spindle Speeds: 5 – 300 RPM
  • Hydraulic Brake System
  • 4-Way Rapid Traverse
  • T-Slot on Tool Slide
  • Hardened and Ground Bed and Cross Slide Ways
  • 2-Speed Drive Tailstock Quill
  • Coolant System with Pump and Piping 
  • Pull Drawer Chip (Coolant) Pan
  • Rear Chuck Adapter Installed
  • Front & Rear Chuck Guards

Optional Accessories

  • Semi-Automatic Air Threading Attachment w/ Special Taper
  • 11.9”, 19.7” Steady Rest with Roller Jaws
  • 23.5” Steady Rest with Roller Jaws (34" & 40” Swing Only)
  • Roller Bracket
  • 7.9” Follow Rest
  • Telescopic Taper Attachment ±8° & 3.5”/foot, 19.7” Stroke
  • Drilling Attachment
  • Carriage Stops
  • Splash Guard (Factory Installation Only)
  • Chip Conveyor (Factory Installation Only)
  • Digital Readout (DRO)
  • Aloris Quick Change Tool Post & Sets
  • 3-Jaw & 4-Jaw Manual Chucks

 

Capacity HK 30" HK 34" HG 34" HG 40"
Swing Over Bed 30” 34" 34" 40"
Swing Over Cross Slide 20.5” 25.1” 25.1” 31.0"
Distance Between Centers 120” / 160” / 200” / 240” / 280” 120” / 160” / 200” / 240” / 280” 120” / 160” / 200” / 240” / 280” 120” / 160” / 200” / 240” / 280”
Width of Bed 22” 22” 22” 22”
Height of Center from Leg Bottom 46.5” 48.6” 48.6" 51.5"

  

Headstock  HK 30" HK 34" HG 34" HG 40"
Spindle Bore  12.5” 12.5”  14.7”  14.7” 
Taper of Spindle Bore & Center  3/4” Taper per Foot  3/4” Taper per Foot  3/4” Taper per Foot  3/4” Taper per Foot 
Type of Spindle Nose  ASA A2-20  ASA A2-20  ASA A2-20  ASA A2-20 
Number of Spindle Speed  16  16  16  16 
Spindle Speed  5 – 300 RPM  5 – 300 RPM  5 – 300 RPM  5 – 300 RPM 

 

Gear Box  HK 30" HK 34" HG 34" HG 40"
Number of Feed Changes  40 Kinds 40 Kinds 40 Kinds  40 Kinds 
Range of Feeds per Revolution  0.0024” – 0.0337”  0.0024” – 0.0337”  0.0024” – 0.0337”  0.0024” – 0.0337” 
Longitudinal Cross  1/2 of Longitudinal Feed 1/2 of Longitudinal Feed 1/2 of Longitudinal Feeds 1/2 of Longitudinal Feeds 
Leadscrew Diameter & Threads / Inch  1.9" / 2 TPI  1.9" / 2 TPI  1.9” / 2 TPI  1.9” / 2 TPI 
Threading range - Whitworth  1 to 28 TPI (50)  1 to 28 TPI (50)  1 to 28 TPI (50)  1 to 28 TPI (50) 
Threading range - Metric  1 to 28mm pitch (41)  1 to 28mm pitch (41)  1 to 28mm pitch (41)   1 to 28mm pitch (41) 
Threading range - Module  0.5 to 7 M (20)  0.5 to 7 M (20)  0.5 to 7 M (20)  0.5 to 7 M (20) 
Threading range - D.P.  4 to 56 D.P. (40)   4 to 56 D.P. (40)   4 to 56 D.P. (40)   4 to 56 D.P. (40)  

  

Tool Slide  HK 30" HK 34" HG 34" HG 40"
Maximum Travel of Compound  9.4”  9.4”   9.4”  9.4” 
Maximum Travel of Cross Slide  21.2”  21.2”   21.2”  21.2” 

 

Tailstock  HK 30" HK 34" HG 34" HG 40"
Tailstock Quill Travel  11.8”  11.8”   11.8”  11.8”  
Tailstock Quill Diameter  5.1”  5.1”  5.1”   5.1”
Tailstock Center  M.T. #6  M.T. #6  M.T. #6  M.T. #6 

  

Motor  HK 30" HK 34" HG 34" HG 40"
Main Drive Motor  20 HP (15kw), 6P  20 HP (15kw), 6P  20 HP (15kw), 6P  20 HP (15kw), 6P 
Coolant Pump Motor  1/4 HP  1/4 HP  1/4 HP  1/4 HP 

 

Dimensions  HK 30" HK 34" HG 34" HG 40"
Floor Space (L x W)  205" / 245" / 285" / 325" / 365" x 86" 205" / 245" / 285" / 325" / 365" x 86" 205" / 245" / 285" / 325" / 365" x 86" 205" / 245" / 285" / 325" / 365" x 86" 

 

Weight (lbs) HK 30" HK 34" HG 34" HG 40"
  17,600 / 19,150 / 19,800 / 22,220 / 23,760  18,600 / 20,150 / 21,670 / 23,200 / 24,750  18,600 / 20,150 / 21,670 / 23,200 / 24,750  20,100 / 21,600 / 23,155 / 24,700 / 26,250