HP/HPX
Big Bore Lathes

Overview

Extremely popular in the oilfields and elsewhere, Kingston’s 7.09” bore HP model and 9.25” (or 10.1”) bore HPX model deliver superior power and cutting performance on large and long workpieces. At the heart of these machines is a strong and rigid headstock and 22” bedway made with high-quality casting for greater stability and accuracy in heavy-duty applications. The powerful 30 HP spindle motor features 16 spindle speeds and the gear box features 40 kinds of feed changes. Kingston’s HP model is bigger, stronger, more precise, and more reliable than 6” bore machines, and the larger HPX model is in a league of its own. Available in 34” and 40” swings and lengths from 80” to 280. Watch the video to see the HPX in action!

Standard Features

  • 30 HP, 230V/460V, 3 Phase, 60 Cycle Motor, Switch and Wiring Complete
  • Spindle Bore: HP 7.09” / HPX 9.25” or 10.1"
  • Spindle Nose: ASA-A2-15
  • 16 Spindle Speeds: 8 – 700 RPM (HP), 9 – 600 RPM (HPX) 
  • Headstock Spindle Adaptor: ASA-450 to MT#6
  • 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

  • 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 34" 40"
Swing Over Bed 34” 40”
Swing Over Cross Slide 25.1” 31.0”
Distance Between Centers 80” / 120” / 160” / 200” / 240” / 280” 80” / 120” / 160” / 200” / 240” / 280”
Width of Bed 22” 22”
Height of Center from Leg Bottom 48.6” 51.5"

 

Headstock 34" 40" 
Spindle Bore HP 7.09” / HPX 9.25” or 10.1” HP 7.09” / HPX 9.25” or 10.1”
Type of Spindle Nose ASA A2-15 ASA A2-15
Number of Spindle Speeds 16 16
Spindle Speeds 8 – 700 RPM (HP), 9 – 600 RPM (HPX)  8 – 700 RPM (HP), 9 – 600 RPM (HPX) 

  

Gear Box 34" 40"
Number of Feed Changes 40 Kinds  40 Kinds 
Range of Long. Feeds per Rev. 0.0024” – 0.0337” 0.0024” – 0.0337”
Longitudinal Cross 1/2 of Longitudinal Feed 1/2 of Longitudinal Feed
Leadscrew Diameter & Threads per Inch 1.9” / 2 TPI 1.9” / 2 TPI
Threading Range - Whitworth 1 to 28 TPI (50) 1 to 28 TPI (50)
Threading Range - Metric 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)
Threading Range - D.P. 4 to 56 D.P. (40) 4 to 56 D.P. (40)

  

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

  

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

  

Motor  34" 40" 
Main Drive Motor  30 HP (22kw)  30 HP (22kw) 
Coolant Pump Motor  1/4 HP  1/4 HP 

 

Dimensions  34" 40" 
Floor Space (L x W) 198" / 238" / 278" / 316" / 360" / 394" x 87" 198" / 238" / 278" / 316" / 360" / 394" x 87"

 

Weight (lbs)  34"  40" 
  13,700 / 15,200 / 17,800 / 19,300 / 21,800 / 23,900  13,950 / 15,500 / 18,000 / 19,600 / 22,100 / 24,200