CB 60
Precision Connecting Rod Boring for Engine Reconditioning Workshops
- A precision-built con rod boring machine made from the best materials with an extreme degree of accuracy — every part tested multiple times during production and prior to dispatch, for accurate boring results over a great number of years.
- Boring capacity 15–150 mm with standard spindles — 4 boring bars included as standard
- Infinitely variable spindle speed 0–1200 rpm with servo-driven automatic table feed
- Electronic handwheel for precise control of both spindle and table movement
Overview
Precision and Reliability Built Into Every Part
The CB 60 is AMC-SCHOU’s connecting rod boring machine — a precision tool machine constructed for reboring con rods in castings and aluminium, as well as other special boring applications such as motorcycle engine cylinders. Every single component is tested multiple times during production, and the complete machine is tested against a test certificate prior to dispatch.
The boring head carries bearings mounted with exact minimum play — sealed for life against impurities, with no re-lubrication required. The boring bar connects to the spindle via a BT 40 conical interface for secure, repeatable tool changes. Workbench movement is servo-driven, with speed and direction controlled directly from the front panel.
Applications
Connecting Rod and Special Bore Reconditioning
- Reboring connecting rod big ends in castings and aluminium
- Small end and special bore applications, including motorcycle engine cylinders
- Accommodates con rod lengths from 85–600 mm between centres
Expanding arbors are available as optional equipment in four types (S, A, B, C) covering 14–152 mm — for quicker and more accurate setting-up. Centre distance can be read directly off the measuring rod without a correction table.
Performance
4 Boring Bars as Standard The boring head is supplied with 4 boring bars covering ø14–150 mm. Tool setting uses a 6 mm hex wrench to rotate the dial — each graduation adjusts the bore diameter by 0.01 mm for precise sizing.
Electronic Handwheel Control A single electronic handwheel switches between controlling spindle rotation/feed and worktable movement — giving the operator fine manual control over both axes from one interface. Feed rate and rotational speed are displayed on dedicated panels with separate adjustment knobs.
Servo-Driven Automatic Table Feed Table movement is driven by a servo motor with automatic feed for boring from 10–100 mm/min. Direction is selected by switch; position limit and motion status are indicated by front-panel indicator lights.
Centring Device The centring device fastens to the boring head and allows the operator to centre con rod bores before boring — the feeler is set to the bore, and by rotating the spindle with the handwheel, correct centring is confirmed on the dial indicator.
Expanding Arbors (Optional) Four arbor types available — Type S (14–16 mm), Type A (16–32 mm), Type B (32–72 mm), Type C (72–152 mm). Each arbor includes 4 sets of jaws checked to a cylindrical movement of 0.01 mm. Centre distance readable directly from the measuring rod.
