First Mate Series Thern Davit Crane

Thern Portable Davit Cranes

Lift up to 1 ton with one of these durable portable davit cranes. Thern davit cranes make any operation simple and affordable with trouble-free setup and breakdown for easy transport between multiple service sites. We offer a wide variety of options and accessories to meet your specific requirements.

How to build the Portable David Crane to meet your needs ?

1. What capacity do I need (How much weight am I going to lift) ?
2. How do I want to lift that load (Hand winch or power winch) ?
3. What Finish is required (Is this for Marine or perhaps a Corrosive environment) ?
4. How do I want to mount this (Wall or Flush Mount)
5. How much wire rope do I need (How high am I lifting the material) ?

Each portable davit crane is designed for simple, affordable operation with the following features:

• Choose from spur gear hand winch, work gear hand winch or power winch operation
• Adjustable boom telescopes to 4 different lengths
• Height can be adjusted while under load with ratchet style screw-jack
• Crane rotates 360 on Nylatron bearing sleeve in the base
• Crane breaks down for easy storage or transport
• Available in your choice of two finishes: electrostatic powder coating or galvanized stainless steel.
• Base options include: pedestal, socket or wall mount style or wheel base for floor crane operation.

5122 Manual

Portable & Stationary

Features

Thern 5122 "First Mate" Portable Davit Cranes

Hand or Power Winch Operation
Up to 500 lbs capacity

• Hand Winch Operated Models include spur gear or worm gear hand winch with automatic disc brake for load control.
• The Worm Gear Hand Winch model 4WM2-K can be power driven with a maximum 400 rpm drill-motor. Not available for Series 5122.
• Power Winch Operated Models include 115 volt 1 phase AC electric winch with pendant control and brake. Other voltages and phases, 12 volt DC, pneumatic, and hydraulic available, contact factory. Series 5122 for hand operation only.
• Quick Disconnect Anchor for quickly attaching or removing the wire rope from the winch drum.
• Corrosion Resistant Finish with electrostatic powder coating and corrosion resistant fasteners. Galvanized finish also available, see models ending in GAL.
• Adjustable Booms provide different height and reach combinations for various size loads. Series 5122 boom adjusts with pins to 2 different positions for operation, and folds down for storage or transport. Series 5110 and 5124 booms telescope to 4 different lengths, and adjust in height while under load with ratchet style screw-jack.
• Crane Rotates 360° on a pin and sleeve bearing in the base.
• Stainless Steel models for long service life in corrosive environments, with zinc and iridescent dichromate plated hand winch or stainless steel hand winch.
• Bases sold separately in pedestal, socket, or wall mount style.
• Wheel Base sold separately for floor crane operation. Base includes rear caster wheels for 360° maneuverability.
• Wire Rope Assemblies sold separately.
• 2-year Limited Warranty
•  

Thern products are not for lifting people, or things over people.

How to build the Portable David Crane to meet your needs ?

1. What capacity do I need (How much weight am I going to lift) ?
2. How do I want to lift that load (Hand winch or power winch) ?
3. What Finish is required (Is this for Marine or perhaps a Corrosive environment) ?
4. How do I want to mount this (Wall or Flush Mount)
5. How much wire rope do I need (How high am I lifting the material) ?

Winch (Except on the popular configuration models) Pedestal Base and Wire Rope Sold SEPARATELY 

Crane Dimensions with Pedestal Base

Crane Dimensions with Flush or Wall-Mount Base