Rottler SG7MTS

MANUALMATIC Cylinder Head Seat and Guide Machine

Machine Operations

  • Seat & Guide Machining

  • Applicable Industries

  • Cylinder Head Shop
  • Engine Building
  • Jobber Shop
  • Motorcycle Engine
  • Performance Racing
  • Remanufacturing
  • Small Engines
  • Vintage Engine Rebuilding

  • PDF Resources

    SG7MTS Brochure
    SG Pilot Catalog
    SG Inserts & Profiles Catalog
    SG Optional Equipment Catalog
    SG7MTS Optional Equipment Catalog

    SG7MTS MANUALMATIC Touch Screen Control Seat & Guide Machine

    The SG7MTS uses the same proven fixed carbide pilot tooling as SG7M but now has a front mount steering wheel for spindle downfeed.

    The machine have 2 modes of operation:

    1. MANUALMATIC – a brand new concept has been added to these machines which should increase productivity by 30-50%. During seat cutting, the operator does not have to operate any buttons or switches, simply turn the spindle feed steering wheel up and down and the control takes care of all the functions like workhead float/clamp, pilot centering in the valve guide and spindle on/off. When depth of seat is reached, the control automatically changes spindle RPM to high/finish speed to give equal depth of every seat and consistent surface finish results.
    2. MANUAL – the buttons on touch screen are the same as the previous SGM machines. There is no external dial gauge, the spindle vertical position is displayed on the touch screen. Simply feed the spindle down until the cutting insert touches the valve seat, touch set zero button and then the digital display will show exactly where the spindle is at all times. The change from low to high/finishing speed is easier as there are 2 separate buttons. The foot pedal for clamp and float of workhead has been eliminated and now controlled on touch screen for manual and automatically for MANUALMATIC.
    The SG7MTS features Rottler's trademark CONCEN that guarantees you get the most accurate and versatile machine possible. Rottler combines precision carbide centering pilots with a light weight air float workhead to give you perfect centering with the valve guide - every time. This guarantees the best CONCEN of valve seat to valve guide centerline in the industry. 

    For more information: See the SG7MTS Brochure or give us a call at +1 (253) 872-7050
    Concentricity - Rottler's Rigid Precision carbide centering pilots are manufactured to less than one tenth tolerance. Combined with the light weight air float workhead the SG7 gives perfect centering in the valve guide and the best concentricity of any machine on the market.

    Built in Vacuum Tester for quick checking of valve seats before removing the cylinder head.

    Storage Cabinet - Three drawers and top tray allows convenient storage of wide selection of tooling available from Rottler.

    360 Degree Rollover Fixture - Provides quick loading and easy access to all sides of the head. Quickly levels head using the micro adjust feature. Fixture bolts down firmly with quick release handles. Clamps onto table firmly for chatter free cutting with extremely accurate concentricity. (Optional)

    Rigid Machine Construction - Heavy thick wall cast iron machine castings and precision machining during the manufacturing process give excellent chatter free valve seat cutting. Heavy duty cabinet/base extended to the rear for safe handling when machine has to be moved. Recessed toe kick allows more comfortable machine operation.

    Light Weight Workhead - The SG7 has a light weight workhead for extremely fast and accurate centering for the ultimate minimum concentricity. Outer spindle support bearings are adjustable over the whole length of the bearing area, similar
    to High Precision Boring Bar design.

    Variable Speed Spindle from 40 to 400 rpm - Accurately select specific spindle speeds required for different machining operations. Soft touch buttons and bright digital display allow ease of operation.

    Electronic Level - Digital readout for quick, accurate adjustment.

    Depth Indicator - Shows the operator exactly how much has been removed from the seat assuring consistent seat depth. Also useful for installing seat rings, reducing valve guides, facing spring seats, etc.

    Adjustable Depth Stop - helps to prevent errors due to over travel.

    Dual Speed Spindle Feed - Large handwheel provides rapid feed and small handwheel allows precise fine feed control of the spindle. Very helpful when depth of cut must be maintained to extreme levels of accuracy.

    15 Degrees Tilt - Spindle tilts up to 15 degrees from vertical in both directions , providing quick alignment on all canted valve cylinder heads. Cuts each seat to the exact same depth - a must for today's computer controlled engines.

    Spindle Nut - Offers quick tooling change for a wide selection of tooling and spindle adapters.

    Rottler Patented Tooling - Rottler's patented SG tooling totally eliminates any bounce springs. The quick change spherical spindle adapter allows different tool holders to be changed in a few seconds, change from multi angle seat cutting to pocket boring or reaming in just a few seconds! When the collar is moved down it aligns the tool holder vertically to allow the tool holder to be easily lowered down over the fixed pilot. While the tool holder is being lowered, the collar is lifted to release the sphere for precision centering and cutting. One hand pilot removal wrench allows fixed pilots to be moved from guide to guide - fast and easily.
  • The Standard Control has 2 modes of operation:

    1. MANUALMATIC Touch Screen Control for increased production

    2. MANUAL Touch Screen Control for simple manual operation

  • Operations such as valve guide reaming, drilling and tapping are included

  • Lightweight Air Float Work Head for precise centering

  • Holder Kit for heads that Roll Over Fixture is not able to clamp - two piece frame - adjustable for different length heads

  • Maximum Cylinder Head Length in 360 degree Roll Over Fixture - 28" (700mm) adjustable to 32" (800mm)

  • Rottler R1 Taper 2.25" (58mm) Hardened and Ground Spindle with 8" (200mm) of hand wheel travel

  • Spindle Rotation Speed Infinitely Variable from 40-400RPM with AC Motor and Vector Drive

  • Quick change of Spindle RPM from High to Low for fine finishing of the valve seat 

  • Quick Change Tool Retention System for fast location over pilot and accurate centering (Patented)

  • Steering Wheel for Rapid and Fine Spindle Feed for Precise Valve Seat Depth and Finish

  • Work head tilts 15-degrees in both directions for Canted Valve Guides

  • 2 LED Work lights - either side of the spindle giving shadowless view of valve seat area

  • Tool Storage Cabinet with three drawers, mounts on the machine and swivels for ease of use

  • Digital Electronic Level for quick, precise alignment of Fixed Carbide Pilots

  • Digital Display for repeatable Depth Control of Spindle Travel

  • Built in Vacuum Tester complete, Kit includes hose and quick change pads

  • Space requirement with Tool Cabinet mounted: 52 X 34 X 78" H (1321 X 864 X 1981mm)

  • Paint Color Code: RAL9002 (Grey White)
  • With the Rottler SG7MTS you can accurately select specific spindle speeds
    required for different machining operations. The bright touch screen digital display allow ease of operations. With Rottler's Dual Spindle Feed you can use the steering wheel to provide rapid feed and the small handwheel for precise find feed depth control of the spindle. The 360 Degree Rollover fixture provides quick loading and easy access to all sides of the head.
    SG7MTS Machine Specifications American Metric
    Travel - Spindle Nose to Table18.625"473mm
    Spindle - TaperR30 Quick Change with Automatic Lock
    Spindle - Diameter2.19"56mm
    Spindle - Rotation Speed40 to 400 RPM
    Spindle - Motor3/4 HP0.56 Kw
    Valve Seat Diameter Range0.550"-3.000"14-76mm
    Cylinder Head Dimensions (with 360 degree rollover fixture)31L x 9W x 6H"787L x 230W x 150Hmm
    Cylinder Head Dimensions (with Diesel Fixture)37.5L x 12W"950L x 305Wmm
    Spindle Travel/Stroke Vertical7.250"184mm
    Workhead Travel Horizontal - Airfloat/Airclamp29"736mm
    Workhead Travel In/Out - Airfloat/Airclamp2.125"54mm
    Workhead Tilt (either side of vertical zero)15 Degrees
    Roll Fixture Movement In/Out with Clamp4.75"121mm
    Dimensions - Machine32D x 38W x 72" H 813D x 965W x 1829mm H
    Dimensions - Shipping37D x 49W x 83" H 940D x 1245W x 2108mm H
    Machine Weight1800 lbs818 kg
    Electrical Requirements208-240V, 15A, 50/60Hz, 1Ph
    Air Requirements cfm @ 90 psi l/min @ 6 bar
    Paint Color CodeRAL9002 (Grey White)