Horizontal boring machine BB5500

for large workpiecescompacthigh-precision

Overview
The CLIMAX BB5500 is engineered for high-precision boring of coupling bolt holes in turbines and large rotating equipment. Designed to bore fitted bolt holes in large couplings and flanges, the BB5500 provides rigidity and accuracy to produce straight, circular bores for precise bolt fit.

Field machining and applications
Built for efficient field machining, the BB5500 is quick to set up and operates reliably in confined spaces where conventional boring machines cannot be used. Features for fast setup and repeatable accuracy reduce downtime during turbine overhauls and maintenance outages. Suitable for turbine couplings and other large coupling applications, it minimizes shutdown time and rework.

Product Advantages

• Powerful, versatile and easy to operate.
• Bores precisely aligned bolt holes on the first pass.
• Eliminates lengthy honing procedures.
• Universal coupling mounting system adapts to standard turbine coupling sizes.
• Quick removal of the boring bar without disturbing the setup for measurement and inspection.
• Multiple feed options, including reversing mechanical feed for limited-space applications for back spot facing and counterboring.
• Electric feed option enables reversing and rapid tool return.
• Multiple drive options: pneumatic, hydraulic or custom electric drives.
• Accepts HSS or carbide tooling.
• Compact design: extremely rigid and compact; single-operator setup fits confined spaces.
• Minimum clearance for rotation drive and axial feed: 2.0 in (50.8 mm) between coupling hub OD and bolt center.

Technical specifications

• Model: BB5500
• Brand: CLIMAX
• Bar diameter: 2.5 in or optional 1.875 in (63.5 mm or optional 47.6 mm)
• Boring diameter: 2.1–4.2 in (53.3–106.7 mm)
• Max stroke: length of bar
• Torque at bar: 65 ft-lb (88.1 N·m)
• Power options: pneumatic or hydraulic (custom electric available)