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Heavy Duty HTM Series Horizontal Boring Mills

Table Size: Up to 70″ x 78″

Max. Workpiece Weight: 26,500 lbs.

Up to 50 HP Motor

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Summit® Heavy Duty HTM Series Horizontal Boring Mills (HBMs) offer precision and high performance in a cost-effective solution. They are versatile, durable, heavy-duty and user-friendly machine tools that provide years of profitable trouble-free operation. Utilizing the latest technologies to meet the ever increasing demand for greater productivity, Summit HTM Series Horizontal Boring Mills contain more standard features than any comparable model on the market.

  • Modular travels
  • Heavily-ribbed closed grain cast iron construction, heat-treated and stress-relieved
  • Hardened and precisioned ground steel ways as option
  • Angular contact bearing spindle cartridge headstock
  • Limit switches on all axes
  • Easy access programmable electrics
  • Built-in rotary table
  • Bellville washers tool clamping with hydraulic unclamping
  • Precision hardened and ground gears
  • ZF Box & belt transmission on main motor
  • Central pendant control
  • Multi-axis electronic digital readout
  • Inch/Metric switchable readout
  • Automatic timed lubrication system
  • Inch/Metric programmable threading
  • Steel telescoping way covers
  • Hydraulic axis clamping
  • Rapid traverse
  • Ballscrews on all linear axes
  • Electronic handwheel
  • Manual machine plus control
  • Rotary digital readout
  • UL/CSA Electrics
Specifications HTM4H-XS HTM4H-S HTM4H HTM5H
Spindle
Diameter of spindle 4 1/8″ 5″
Taper of spindle #50 #50
Number of spindle speeds Infinitely Variable Infinitely Variable
Spindle speed range 10-1800 RPM 10-1800 RPM
Travels
Spindle travel – W axis 31.5″ 31.5″
Vertical travel – Y axis 33.4″ 47″ 61″/78.8″ 78″
Cross travel of table – X axis 47″ 70.8″ 86″/106″ 100″/122″/143″
Saddle travel w/o tailstock – Z axis 39.34″ 59″ 65″/54″/104″ 65″/84″/104″
Number of feeds Infinitely Variable Inf. Variable
Metric threads/threads per inch Programmable Programmable
Rapid traverse 118 IPM 118 IPM
Rotary Table
Positioning only 360 degrees 360 degrees
Size of table 55″ x 55″ 55″ x 63″ 70″ x 78″
Maximum weight of workpiece 13,200 lbs. 26,500 lbs.
Main Drive Motor: 20 HP 22/30 HP 40/50 HP
Electrics: 220/440/3/60 220/440/3/60
Weight: (approximate) 30,000 lbs. 32,000 lbs. 48,400 lbs. 57,200 lbs.
Summit Machine Tool
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Summit Machine Tool
518 N Indiana Ave
Oklahoma City, OK 73106

Toll Free: (800) 654-3262
Local: (405) 235-2075
Fax: (405) 232-5169
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