The SV-20 honing system combines Sunnen’s linear servo-stroking technology with the power and capacity to drive multi-stone diamond tools for OEM-quality bore geometry on automotive/truck blocks, cylinder liners and similar large parts. The SV-20 offers features, such as computer-controlled spindle and stroke control, developed specifically for race shops, production rebuilders, and fleet maintenance facilities. The machine accepts blocks as large as the Cat 3126 in-line six and Ford 7.3 L V-8 (International 444)—even “mountain motors” with deck plates can be honed in one setup on the rollover fixture.
The SV-20 is equipped with a variable-speed 15-600 rpm, 5.5 hp (4.1-kW) spindle motor, powerful enough to drive two-stage diamond honing tools through a 20-inch stroke at up to 100 strokes per minute for short cycle times and minimal labor. The large multi-stone tools produce a rounder bore than ever before possible. The SV-20’s new linear stroking system with 3.36 hp (2.5 kW) servo drive keeps the honing tool concentric with the bore throughout the full stroke length to produce a consistent diameter from top to bottom of the bore. It can hone bores with inside diameters from 0.75 to 8 inches (19-200 mm). The machine's work envelope of 36” x 40” (915 mm x 1015 mm), front-loading design, and weight capacity up to 1500 lb (680 kg) combine for versatility in processing a wide range of other large parts, such as compressor bodies and pumps. The PLC-controlled SV-20 utilizes an industrial color touch screen with hand wheel to jog for fast setup and easy operator training. The computer control ensures automatic, consistent bore-to-bore geometry and finish, without constant adjustment by the operator. The control’s real-time display of bore cross section allows the user to see taper and correct it by dwelling the tool in the required position. Programmable auto dwell also allows taper correction through the PLC for unattended operation. The control allows on-the-fly changes of spindle and stroke speeds, and automatic calculation of crosshatch, stroke length/speed and spindle speed. Variable speed control allows a much wider range of processing options and consistent crosshatch pattern, with automatic switching from roughing to finishing with one push of a button. Left/right positioning of the column on its 30-inch X-axis (760 mm) is easily accomplished with a machine-mounted hand wheel immediately below the PLC.
The SV-20’s rotary servo tool feed system can be used with two-stage hone heads to complete roughing and finishing without stone changes for faster processing times. The machine is compatible with all of Sunnen's past and current tooling for CK/CV/SV-series machines, including diamond abrasive hone heads and brushes, GHSS single-stage hone heads with CBN or diamond abrasives and brushes, and GHTS hone heads for two-stage honing with CBN or diamond abrasives. The SV-20 is available with a 400V/50Hz/3Ph or 460V/60Hz/3Ph electrical system. Options include a T-slot base and manual rollover cradle for engine blocks.
SV-10 Automatic Honing Machine
Sunnen has long set the industry standard in creating complete solutions for precision honing. Sunnen offers a vertical honing system for virtually any budget and any application from the fast, economical SV-10 to systems that are capable of holding extremely tight tolerances to customizable systems, engineered for to fit your exact requirements. Sunnen vertical systems are reliable, durable and designed to deliver the precision you have grown to expect.
Sunnen’s SV-10 Automatic Cylinder Hone utilizes two motors, one for the spindle and one for the stroker, the SV-10 has the capability to run standard Sunnen tools as well as the DH-series diamond hone head. Sunnen’s expertise, with multiple-diamond honing on its top-of-the-line machine, is now available on its competitively priced SV-10. The DH-series diamond hone has 16 points of cutting action and produces truly round cylinder bores. The mechanical stroke allows for a precision surface finish with a consistent crosshatch angle in each cylinder no matter what tool is used.
The Sunnen CH-100 offers the best method for fast precision alignment of main bearing bores. It does the complete job of alignment and sizing main bearing bores in about 30 minutes, floor-to-floor time for an average passenger car block. Just add a few minutes more for truck blocks.
Shops all over the country enjoy all the advantages of the CH-100, but the best, most practical reasons are speed and ease of use. Add quality work, and that about sums it up.
* Minimum stock removal, usually less than .003" (.076 mm) off the caps compared to as much as .010" (.254 mm) with boring
* Maximum precision, corrects distortion caused by warpage and cap stretch
* Meets or exceeds original factory accuracy for alignment, roundness and size
* Fast, easy setup
* Ease of operation, no special training required
* Profitable: Make $90-$120 in 30 minutes on a typical V-8 block
* Lifetime application service with every machine purchase
Sunnen Products Company has been a global leader in the manufacturing and distribution of bore sizing and finishing equipment, engine rebuilding equipment, and tooling and abrasives since 1924. Sunnen Products Company is the leader in precision honing equipment for both the industrial and engine building market. Sunnen has a system for virtually any bore sizing application that demands the highest standards and stringent tolerances – even submicron tolerances. Sunnen offers the industry’s most comprehensive line of precision honing system including horizontal and vertical, single and multi- spindle, standard and customized precision honing systems with automated parts loading and in-process or post-process gaging. The system is just the beginning. As the world’s foremost authority on honing, Sunnen has incorporated our experience into a complete line of abrasives, tooling and gages.