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SG 7.1

US Patented Technologies

Worlwide Distribution

40+

Years Manufacturing

SG 7.1

SG 7.1

Description

The cylinder head valve seat and guide machine, equipped with robust carbide centering pilots, is an exceptional solution for workshops specializing in machining small to medium-sized cylinder heads for automobiles, trucks, motorcycles, and powersports engines. The SG7.1 workheads are designed for durability and capable of machining valve seats with substantial diameters. Engineered for high-speed operation and precise centering, its lightweight construction ensures superior concentricity, making it a reliable and efficient choice for engine rebuilding applications.

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Product Details

  • Specifications
  • Features
  • Working Accuracy
  • Documents
  • Videos

Product Details

  • Specifications
  • Features
  • Working Accuracy
  • Documents
  • Videos

Specifications

Machine weight 1653 lbs (750 kg)
Max cylinder head size 32″w x 10″d x 5″h (812 mm x 254 mm x 127 mm)
Work head travel 29.50″ (749 mm)
Spindle stroke 6.700″ (175 mm)
Spindle stroke 0.75 HP
Variable speed spindle 50 - 440 rpm (50 hz)
Spindle tilt ± 15 Degrees
Title of Document

Features

  • Spring free tooling
  • High precision three angle cutting tools
  • Quick change tool retention system for fast location over pilot and accurate centering (patented)
  • Eliminates bounce springs
  • Variable spindle speed
  • CVS Constant-Variable-Speed feature
  • Reverse RPM for tapping
  • Machine work head floats on air cushion for precision centering
  • Steering wheel for rapid feed for precise valve seat depth and finish
  • Two LED work lights – either side of the spindle giving shadow less view
  • Built in vacuum tester, kit includes hose and quick change pads

Working Accuracy

  • Valve seat roundness: 0.0001” (2.0 µm)
  • Valve seat to honed-guide concentricity: 0.0002” (5.0 µm)

Documents

SG 7.1 Brochure

Videos

Compare model Specs

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Current Model
Model:SG 7.1
Machine weight1653 lbs (750 kg)
Max cylinder head size32″w x 10″d x 5″h (812 mm x 254 mm x 127 mm)
Work head travel29.50″ (749 mm)
Spindle stroke6.700″ (175 mm)
Spindle stroke0.75 HP
Variable speed spindle50 - 440 rpm (50 hz)
Spindle tilt± 15 Degrees
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Comparison Model
Model: SG 5.1
Machine weight1340 lbs (608 kg)
Max cylinder head size23″ x 10″ x 5″ (584 mm x 254 mm x 127 mm)
Work head travel18.200″ (462 mm)
Spindle stroke5.750″ (146 mm)
Spindle stroke0.75 HP
Variable speed spindle70 - 570 rpm (60 hz)
Spindle tilt± 10 Degrees
Model: SG 8 and SG 8 Smart
Machine weight2866 lbs (1300 kg)
Max cylinder head size40″ x 12″ x 6″ (584 mm x 254 mm x 127 mm)
Work head travel42.000″ (462 mm)
Spindle stroke8.400″ (146 mm)
Spindle stroke2.0 HP
Variable speed spindle30 - 500 rpm (50 hz)
Spindle tilt± 15 Degrees
Model: SG 12 and SG 12 Smart
Machine weight3637 lbs (1650 kg)
Max cylinder head size47″w x 15″d x 10″h (1193mm x 381mm x 254mm)
Work head travel42.000″ (1066 mm)
Spindle stroke8.400″ (213 mm)
Spindle stroke2.0 HP
Variable speed spindle30 - 500 rpm (50 hz)
Spindle tilt± 15 Degrees