Webster & Bennett CNC Vertical Borer
	Machine Specification • Webster & Bennett ERNC Vertical Borer • Table dia: 1200mm - 4 Jaw Manual     Chuck • Max. Turning Diameter: 1350mm • Elevating Rail • Max Height under Crossrail: 1200mm • Min. Height under Crossrail: 600mm • Ram Travel: 650mm • Table Drive: 37Kw • Table Speeds: 5 - 235rpm, in 2 ranges • 10 Station Automatic Toolchanger

Scope of machine refurbishment & CNC retrofit work

A full machine refurbishment & CNC Retrofit of a Webster & Bennett 48" ERNC Vertical Borer.

The mechanical refurbishment included regrinding of all slideways, replacement of axis drive ballscrews & anchor bearings, replacement of the main Timken table bearings, rebuild of the table drive gearbox, replacement of hydraulic systems & counterbalance and replacement of all lubrication systems. In addition, the machine has been fitted with a new totally enclosed & interlocked Operator Guarding System and a new Swarf Conveyor.

Electrically, the machine was retrofitted with a new Siemens 840D Control, new DC Spindle Motor & Drive, new Siemens Digital Axis Servo Motors & Drives, a new electrical cabinet complete with all new control gear and completely re-wired. 

Comments

The machine was re-engineered to accept a 10 Station Automatic Toolchanger; this included:
• Re-engineering of the Ram to incorporate a Spindle & Power Drawbar Arrangement.
• Design, manufacture and fitting of a new, Rail mounted, disc type, 10 Station Tool Magazine.

The machine was rebuilt as part of our ongoing "stock rebuild" programme; on completion of the rebuild, the machine was sold to a major UK Aerospace Subcontractor and now produces high precision rings for Aircraft Engines.

Guard Doors Closed

Ram & Tool Magazine