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SGH 8

US Patented Technologies

Worlwide Distribution

40+

Years Manufacturing

SGH 8

SGH 8
SGH 8 - Image 2

Description

The SGH 8 is Robins’ medium-capacity seat and guide machine designed to machine everything from small single-cylinder heads to large diesel cylinder heads. This model does not include the Smart screen interface and is built for shops that prefer a fully manual, mechanical control setup.

Fixed carbide pilots and an air-float workhead ensure rigid centering and precise seat-to-guide alignment. Robins multi-angle tooling with Rubi-Hard inserts provides stable cutting on all materials, including powder-metal and diesel seats.

An integrated guide-honing system finishes guides within 0.0001″, improving concentricity and valve sealing before seat machining. With variable spindle speed, ±15° tilt, and a 360° roll fixture, the SGH 8 supports automotive, diesel, industrial, marine, and performance engine applications. Optional pilot, tooling, and fixturing packages are available.

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Product Details

  • Specifications
  • Features
  • Working Accuracy
  • Documents
  • Videos

Product Details

  • Specifications
  • Features
  • Working Accuracy
  • Documents
  • Videos

Specifications

Max Cylinder Head Size (in roll fixture) 40 x 12 x 6 in (1016 x 304 x 152 mm)
Spindle Speed 30 – 500 RPM
Spindle Stroke 8.4 in (213 mm)
Spindle Tilt ± 15 degrees
Electric 220 V / 50–60 Hz / 1 Phase
Net Weight (Approx.) 2536 lbs (1150 kg)
Shipping Weight (Approx.) 2870 lbs (1300 kg)
Constant Varying Speed Yes
Micro Fine Feed Yes
Spring Free Tooling Yes
Threasing/Tapping Feature Yes

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
  • 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
  • One LED work lights – either side of the spindle giving shadow less view
  • Portable 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

SGH 8 Brochure

Videos

 

 

Compare model Specs

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Current Model
Model:SGH 8
Max Cylinder Head Size (in roll fixture)40 x 12 x 6 in (1016 x 304 x 152 mm)
Spindle Speed30 – 500 RPM
Spindle Stroke8.4 in (213 mm)
Spindle Tilt± 15 degrees
Electric220 V / 50–60 Hz / 1 Phase
Net Weight (Approx.)2536 lbs (1150 kg)
Shipping Weight (Approx.)2870 lbs (1300 kg)
Constant Varying SpeedYes
Micro Fine FeedYes
Spring Free ToolingYes
Threasing/Tapping FeatureYes
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Comparison Model
Model: SGH 12 HD Smart
Max Cylinder Head Size (in roll fixture)47 x 15 x 10 in (1193 x 381 x 254 mm)
Spindle Speed30 - 500 RPM
Spindle Stroke8.40 in (213 mm)
Spindle Tilt± 15 degrees
Electric220 V / 50–60 Hz / 1 Phase
Net Weight (Approx.)3274 lbs (1485 kg)
Shipping Weight (Approx.)3638 lbs (1650 kg)
Constant Varying SpeedYes
Micro Fine FeedYes
Spring Free ToolingYes
Threasing/Tapping FeatureYes
Model: SGH 12 HD
Max Cylinder Head Size (in roll fixture)40 x 12 x 6 in (812 x 254 x 152 mm)
Spindle Speed30 – 500 RPM
Spindle Stroke8.40 in (213 mm)
Spindle Tilt± 15 degrees
Electric220 V / 50–60 Hz / 1 Phase
Net Weight (Approx.)3274 lbs (1485 kg)
Shipping Weight (Approx.)3638 lbs (1650 kg)
Constant Varying SpeedYes
Micro Fine FeedYes
Spring Free ToolingYes
Threasing/Tapping FeatureYes
Model: SGH 11 EzMatic
Max Cylinder Head Size (in roll fixture)40 x 12 x 6 in (812 x 304 x 152 mm)
Spindle Speed10 – 570 RPM
Spindle Stroke8 in (203 mm)
Spindle Tilt± 15 degrees
Electric220 V / 50–60 Hz / 1 Phase
Net Weight (Approx.)2315 lbs (1050 kg)
Shipping Weight (Approx.)2977 lbs (1350 kg)
Constant Varying SpeedYes
Micro Fine FeedYes
Spring Free ToolingYes
Threasing/Tapping FeatureYes
Model: SGH 8 SMART
Max Cylinder Head Size (in roll fixture)40 x 12 x 6 in (812 x 254 x 152 mm)
Spindle Speed30 – 500 RPM
Spindle Stroke8.40 in (213 mm)
Spindle Tilt± 15 degrees
Electric220 V / 50–60 Hz / 1 Phase
Net Weight (Approx.)2403 lbs (1090 kg)
Shipping Weight (Approx.)2870 lbs (1300 kg)
Constant Varying SpeedYes
Micro Fine FeedYes
Spring Free ToolingYes
Threasing/Tapping FeatureYes
Model: SGH 7
Max Cylinder Head Size (in roll fixture)32 x 10 x 6 in (812 x 254 x 152 mm)
Spindle Speed50 – 440 RPM
Spindle Stroke6.70 in (170 mm)
Spindle Tilt± 15 degrees
Electric220 V / 50–60 Hz / 1 Phase
Net Weight (Approx.)1422 lbs (645 kg)
Shipping Weight (Approx.)1654 lbs (750 kg)
Constant Varying SpeedYes
Micro Fine FeedYes
Spring Free ToolingYes
Threasing/Tapping FeatureYes
Model: SGH 5
Max Cylinder Head Size (in roll fixture)23 x 10 x 6 in (585 x 254 x 152 mm)
Spindle Speed70 – 580 RPM
Spindle Stroke5.75 in (146 mm)
Spindle Tilt± 10 degrees
Electric220 V / 50–60 Hz / 1 Phase
Net Weight (Approx.)1094 lbs (496 kg)
Shipping Weight (Approx.)1341 lbs (608 kg)
Constant Varying SpeedYes
Micro Fine FeedNo
Spring Free ToolingYes
Threasing/Tapping FeatureYes
Model: SGH 4
Max Cylinder Head Size (in roll fixture)10 x 10 x 6 in (254 x 254 x 152 mm)
Spindle Speed70 – 570 RPM
Spindle Stroke5.75 in (146 mm)
Spindle Tilt± 10 degrees
Electric220 V / 50–60 Hz / 1 Phase
Net Weight (Approx.)882 lbs (400 kg)
Shipping Weight (Approx.)1103 lbs (500 kg)
Constant Varying SpeedYes
Micro Fine FeedNo
Spring Free ToolingYes
Threasing/Tapping FeatureYes