Cylinder Head Valve Seat and Guide Machine

Air Float Work Head with Foot Pedal Control for Hands Free Air Clamping
Universal Heavy Duty Bolt Down 360 degree Roll Over Cylinder Head Fixture
Flexible, compact Halogen work light mounted on Work Heads
Rottler R1 Taper 3.150" (80mm) Hardened and Ground Spindle with 8" (200mm) of hand wheel travel
Rottler One Hand Automatic Tightening Spindle Lock Nut System
Quick Change Tool Retention System for fast location over pilot and accurate centering (Patent Pending)
Rapid and Fine Feed Mechanism for Precise Spindle Feed
Work head tilts 15-degrees in both directions
Spindle Rotation Speed Infinitely Variable from 40-400RPM with Digital Display
Quick change of RPM for Low and High by single push of button on the control panel
Tool Storage Cabinet with 4 Drawers mounts on the machine and swivels for ease of use
Digital Electronic Level for Quick, precise alignment of Fixed Carbide Pilots
Dial Gage for repeatable Depth Control of Spindle Travel
Holder Kit for heads that Roll Over Fixture is not able to clamp - 2-piece frame - adjustable for different length heads
Built in Vacuum Tester complete, Kit includes hose and pads

Concentricity - Rottler's Rigid Precision carbide centering pilots are manufactured to a fine tolerance. Combined with the light weight air float workhead the SG8M gives perfect centering in the valve guide and the best concentricity of any machine on the market.
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. Clamps onto table firmly for chatter free cutting with extremely accurate concentricity.
Multi Angle Seat Cutting - Rottler's Precision CNC Ground Fine Grain Carbide Seat Cutting Inserts are available in many different designs to suit customer requirements. Single angle, multi angle or curves and radius shapes are available. Cutting tools are substantially faster and less expensive than grinding, where a different grinding stone is required for each angle.
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 SG8M has a light weight workhead for fast and accurate centering for the minimum concentricity. At the same time, the workhead is heavy duty capable of machining large diameter valve seats.
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.
Digital 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
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 Degree 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 - Patented Spindle Locking Nut system offers automatic tightening of tools in spindle. Won't come loose when cutting. One hand operation pushes tool up and spindle lock nut tightens automatically, ejects tool when loosened.
Large Diameter Spindle - 3.150 inch (80mm) diameter heavy duty spindle assures rigidity for chatter free operation. Outer spindle support bearings are adjustable over the whole length of the bearing area, similar to High Precision Boring Bar design.
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 SG8M 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. Accuracy of .0005" per inch (.02mm per 25mm) and better is easily obtainable.

For more information: See the SG8 Brochure or give us a call at +1 (253) 872-7050

With the Rottler SG8M you can accurately select specific spindle speeds required for different machining operations. The soft touch button and bright digital display allow ease of operations. With Rottler's Dual Speed Spindle Feed you can use the large handwheel to provide rapid feed and the small handwheel for precise find feed control of the spindle. The Air Float Work Head utilizes foot pedal control. The 360 Degree Rollover fixture provides quick loading and easy access to all sides of the head.

For more information: See the SG8M Brochure or give us a call at +1 (253) 872-7050

Photos may show optional equipmenent.

SG8M Machine Specifications	American	Metric
Control	Automatic
Machine Weight	2700lbs	1227kg
Travel - Spindle Nose to Table	19.500-"	495-mm
Spindle - Taper	R30 Quick Change with Automatic Lock
Spindle - Diameter	3.15"	80mm
Spindle - Rotation Speed	40 to 400 RPM
Spindle - Motor	2 HP	1.5 Kw
Valve Seat Diameter Range	0.550"-3.150"	14-80mm
Cylinder Head Dimensions (with 360 degree rollover fixture)	44L x 16W x 7H	1120L x 406W x 178Hmm
Cylinder Head Dimensions (with Parallels)	50L x 16W x 10.5H"	1270L x 406W x 125Hmm
Spindle Travel/Stroke Vertical	7.875"	200mm
Workhead Travel Horizontal - Airfloat/Airclamp	44.5"	1130mm
Workhead Travel In/Out - Airfloat/Airclamp	1.4"	36mm
Workhead Tilt (either side of vertical zero)	15 Degrees
Roll Fixture Movement In/Out with Clamp	4.75	121mm
Dimensions - Machine	32D x 53W x 74" H	813D x 1346W x 1880mm H
Dimensions - Shipping	39D x 59W x 83" H	991D x 1499W x 2108mm H
Electrical Requirements	208-240V, 15A, 60Hz, 1Ph
Air Requirements	cfm @ 90 psi	l/min @ 6 bar
Paint Color Code	RAL9002 (Grey White)

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Rottler SG8M