Crane boom, mast and base fabricated from heavy duty steel that limits deflection and meets ASTM standards.

Thern davit cranes can be configured with a spur or worm gear manual winch or power winch. Choose from Thern’s spur or worm gear hand winches or power winches with 115/1/60 as standard. Other voltages available as well as pneumatic, hydraulic or DC Volt power operation. Worm gear hand winch configuration can be drill-driven.

A tapered roller bearing allows for smooth and easy 360° crane rotation under load. Mast locks in one of four positions with hand-tightened lock bolt. Rotational handle located on mast for easy rotation.

Red enamel finish resists corrosion in harsh environments. Epoxy finish also available.

Industry-leading two-year limited warranty on all our products.

• AN62A-6 – (4) Hilti® Zinc Plated Steel fasteners 5/8” X 6.00” STL
• AN62A-6S – (4) Hilti® 304 Stainless Steel fasteners 5/8” X 6.00” SST304
• AN62A-6S316 – (4) Hilti® 316 Stainless Steel fasteners 5/8” X 6.00” SST316

RW50 – 316 stainless steel reel winds up wire rope when detached from crane.

• ED330-DW11 – 120 VAC, 11 amp, 330rpm drill-motor to power drive the hand winch. Only available for cranes configured with the M2 winch option. Includes 1-1/8” hex drive socket.
• ED300-DW06 – Cordless drill kit, 60 V Brushless Motor, 300rpm drill-motor to power drive the M2 hand winch option. Includes 1-1/8” hex drive socket.
• ED400-DW09 – Heavy Duty Cordless drill kit, 60 V Brushless Motor, 400rpm drill-motor to power drive the M2 hand winch option. Includes 1-1/8” hex drive socket.

• HB10-25-38 – Red Painted 10lb fits 1/4” to 3/8” Rope
• HB10S-25-38 – Stainless Steel 10lb fits 1/4” to 3/8” Rope

• 5FT20LS-EL – Limit Switch Kit for the 5FT20-M1
• 5FT25LS-EL – Limit Switch Kit for the 5FT25

• RK19-25S – 304 Stainless steel bracket attaches to base or other structure to hold free end of the wire rope when detached from the crane.
• RK19-25S316 – 316 Stainless steel bracket attaches to base or other structure to hold free end of the wire rope when detached from the crane.