Den Hartog Industries, Inc.

Manufacturer of float drums and marine accessories

Den Hartog Industries has been manufacturing Ace Roto-Mold Float Drums and Ace Dock Accessories buoys and dock cushions for over 30 years. Ace Roto-Mold Float Drums set the standard by using the highest quality materials and are backed by superior engineering, quality, delivery and customer service.

Innovations & solutions

Products

Dock Harbor & Dock Cushions
Polyethylene Dock Harbor & Dock Cushions

Ace Dock Accessories Dock Cushions and Dock Harbor Cushions provide years of use in both fresh and salt water. Our dock cushions are made of tough, durable polyethylene with UV inhibitors. They provide excellent protection for your boat. Ace Dock Cushions are easy to mount, won't scratch or mar boats and provide high visibility day or night.

Ace Roto-Mold Float Drums
Foam-Filled, Polyethylene Float Drums

Ace Roto-Mold Float Drums offer durable flotation that can easily be applied to any new or existing dock system. The rotationally molded exterior shell is made of tough virgin polyethylene. The interior foam provides stiffness to the float drum and insures buoyancy. The filling consists of expanded polystyrene that is steam pressured for a tight and solid fit. All of Ace Roto-Mold's procedures ensure the durable, long life of our float drums. Presently there are over sixty different sizes to choose fro

Mooring Buoys
Polyethylene-Polystyrene Foam Filled Mooring Buoys

The Innovative Design of Ace Mooring Buoys is easy to recognize. Designed to be durable and attractive, the buoys have several great features and can be personalize with little effort. The hard polyethylene shell has UV inhibitors to keep it looking new. Polystyrene foam fills the shell to provide maximum buoyancy. A PVC tube is molded through the center of the buoy to allow for different hardware options. An injection-molded collar captures the tube on each end and protects the buoy from wear.

Fold & Go
Portable Dock Cushion

The Unique Design of the Fold & Go
Portable Dock Cushion protects your boat from scratching and scraping against rough posts. It also folds up to allow you to take it with you.

The Fold & Go has a super-sized, cushioned surface that provides maximum protection at the dock or marina.

The Fold & Go stores easily on every boat. The fold-out handles fit over round or square posts that are 4" or smaller.

Portable and practical, Ace's Fold & Go is made of durable polyethylene with maximum UV inhibitors to prev

Lil' Lugger Dock Cart
Two wheel utility transport cart

The Lil' Lugger Dock Cart is a two-wheel transport cart. The cart provides 7.5 cubic feet
of transport capacity and is designed for transporting loads not to exceed 300 pounds total weight.
The LIl' Lugger Dock Cart is manufactured from linear low-density polyethylene with UV stabilizers.

20" diameter wheels with semi-pneumatic tires with sealed ball bearing support
Adjustable axle is provided to allow load balance adjustments
Assembly to frame and wheels is required
Available in Black, Blue and Green

Dock Corner Cushions
Corner Cushions/Dock Bumpers

Dock Corner Cushions (also referred to as Dock Bumpers) are rotationally-molded and designed to be installed on boat dock structures (fixed or floating). These Dock Corner Cushions are constructed from Polyvinyl Chloride (PVC) with compounded UV inhibitors and are intended for the protection of the watercraft when porting or de-porting the dock. The cushions feature top and bottom flanges for fastener installation.