Thern 5BR5 Rolling Davit Crane Base

Thern 5BR5 Rolling Base — Portable Mobility for First Mate & Commander 500 Davit Cranes

The Thern 5BR5 Rolling Base provides a durable, mobile foundation for Thern’s portable davit cranes, including the 5PF5 First Mate and 5PT5 Commander 500. Designed for safe movement and stability, the 5BR5 allows a single operator to roll the crane into position, secure it with locking casters, and perform lifting operations safely on flat, level surfaces. When assembled with a compatible crane, the mast is bolted through the base to prevent rotation during lifting.

Key Features

• Compatible Models: Designed for use with the 5PF5 First Mate and 5PT5 Commander 500 portable davit cranes.
• Secure Anti-Rotation: Includes bolt-through mounting to lock the mast in place and prevent tipping during lifts.
• Rugged Construction: Welded-steel frame with corrosion-resistant zinc-plated hardware; total base weight approximately 77 lb (35 kg).
• Mobility & Stability: Rear swivel casters feature foot brakes for stable operation; front wheels are fixed for directional control.
• Compact Portability: Ideal for moving loads across maintenance areas, facilities, or job sites without permanent base installation.

Operational Guidance (Summary)

• Use only on a rigid, level surface capable of supporting the total crane and load weight.
• Lock rear casters before lifting; unlock to move. Keep the load low and secured to the mast when rolling.
• Center the hook directly over the load. Avoid side pulls and never adjust boom angle under load.
• Do not operate on inclined surfaces and do not exceed the load ratings marked on the crane’s load chart.

Specifications

Mast fit is designed for the 5PF5 First Mate and 5PT5 Commander 500 cranes. Weight and caster configuration per factory specification. Crane and winch sold separately.

Performance with 5PF5 First Mate on 5BR5 / 5BR5X Wheel Base

Performance data reflects the 5PF5 First Mate crane when mounted on the 5BR5 or 5BR5X rolling base. Always confirm load ratings on the crane’s identification label and in the Owner’s Manual before use.

What’s Included

• 5BR5 rolling base assembly with pedestal mount, casters, and mounting hardware
• Instruction manual and safety labeling
• Crane and winch sold separately

Always refer to the crane’s Owner’s Manual and safety labels for installation and operation procedures. Follow all warnings regarding surface conditions, side loading, boom adjustments, and movement practices.