Sunnen SV-2000 Series Vertical Honing Machine

Applications

Pre-finishing and superfinishing of bores in complex parts for the aerospace, defense, oil and gas, and general engineering industries.

Windows®-based PC control

Easy-to-use drop-down menus and the ability to save settings for later use.

Design and drives

• vertical spindle;
• no hydraulic units — all machine axes are driven by electric motors (patented by SUNNEN, according to the manufacturer);
• rigid cast-iron bed combined with a welded structure.

Automation

• single-part processing with one table;
• full automation and robotic loading possible;
• multiple independent spindle units can be installed.

Accuracy

With standard SUNNEN honing tools, the machine holds bore diameter tolerances down to 0.00025 mm.

Bores

• all bore types within the machine's limits for part weight, diameter and length;
• blind bores;
• steels and other materials;
• stock removal on diameter from 1 mm;
• an alternative to internal cylindrical grinding of straight bores.

Honing stones

• CBN and diamond stones;
• single-pass honing stones;
• heads with one, two, three, four, five or more stones.

Spindle and feed

• precision high-torque servo spindle;
• increased spindle power — up to 7.5 kW (10 hp);
• patented load-controlled feed system: runs at constant speed or constant pressure;
• advanced servo stroke control — stops at any point in the bore;
• all drive units are equipped with high-precision, high-torque induction motors.

Base and column

• massive polymer-composite cast base reduces vibration;
• rigid cast-iron column;
• modular column design for application-specific setup;
• brush base (option).

Operation and safety

• stainless-steel enclosure provides good visibility of the work area and operator protection;
• sealed lubrication of the stroking slide guideways — no lubricant change for up to 15 years (according to the manufacturer);
• drive safety system;
• low operating costs.

Configuration

Multi-spindle machine configuration available (option).

MMT — mandrels

• diameter range — 4 to 65 mm.

CGT — multi-purpose diamond tooling

• diameter tolerance — down to 0.00025 mm;
• parallelism in a minimum number of passes;
• diameter range — 3 to 32 mm;
• long diamond stone life;
• high productivity.

SRT — multi-heads and mandrels

• for special honing operations;
• blind and long bores;
• high stock removal — up to 0.1 mm on diameter.

TC — high-precision mandrels and heads

• various stone arrangements;
• up to 6–8 stones per row, including mirrored arrangements;
• total number of stones — 24 to 36 pcs;
• minimizes subsequent bore washing;
• diameter range — 32 to 65 mm.

Single stroke — single-pass head

• precision special head for diamond stones;
• stones with a guide channel;
• high stock removal: [specify the range per SUNNEN documentation];
• one set of stones lasts up to 1,500–2,000 bores at 0.05 mm stock removal on diameter (steel or cast iron, 40–45 HRC).