The standout feature is the 12-foot self-locking hydraulic dovetail. It features a 12.5-degree loading angle and is rated to lift and carry up to 10,000 lbs distributed across the tail. It typically includes an automatic locking mechanism and a wireless remote for operation.

Unlike traditional hot-rolled I-beams, Diamond C uses a patented Engineered Beam (16" or 18" depending on length). This design allows the frame to be taller and stronger where stress is highest, while reducing unnecessary weight, making it up to 1,800 lbs lighter than competitors.

The trailer comes standard with two 16,000 lb oil bath axles. These are high-capacity axles designed for commercial longevity and are paired with Electric-over-Hydraulic (EOH) Disc Brakes for superior stopping power under heavy loads.

To manage the 32,000 lb+ axle capacity, the FMAX-HDT 216 utilizes a Hutch Heavy Duty Adjustable Suspension. This system is preferred by commercial haulers for its durability and ease of maintenance compared to standard slipper springs.

The trailer is finished with the DM Coating System, which involves a 6-step process including mechanical de-scaling and a zinc-rich primer followed by a high-gloss powder coat for maximum corrosion resistance.

The neck is a 12" curved engineered gooseneck designed to distribute stress more evenly than traditional square-cut necks. It includes a large Diamond Plate Neck Box with a gas-shock-assisted lid for organized tool storage.

Because of the 16k axle rating, this trailer uses a "Tandem Dual" configuration with high-capacity commercial-grade rubber.

Tire Size: ST215/75R17.5

Ply Rating: 18-Ply (Standard for 16k axles; some configurations may show 16-ply as base, but 18-ply is the HD standard for this GVWR).

Tire Type: All-Steel Belted Radial.

Wheel Size: 17.5" x 6.75".

PERFECT FOR
Given its massive weight capacity and the specific "Hydraulic Dovetail" configuration, the FMAX-HDT 216 is designed for high-intensity commercial work. It bridges the gap between a standard flatbed and a lowboy semi-trailer.

Here are the primary use cases where this trailer truly shines:

Hotshot Trucking & Heavy Hauling
This is the "gold standard" for professional hotshotters. Because of the Engineered Beam (which saves weight) and the 30k–40k GVWR, it allows for maximum payload while staying within legal weight limits. It’s perfect for hauling:

• Steel coils and industrial pipes.

• Oversized construction materials.

• Multiple vehicles or non-running chassis.

Heavy Construction Equipment
The 12-foot hydraulic dovetail is a game-changer for loading low-clearance or heavy machinery without the physical strain of manual ramps. It is ideal for:

• Paving Equipment: Rollers and pavers that struggle with steep loading angles.

• Earthmovers: Large skid steers, mid-sized excavators, and backhoes.

• Aerial Lifts: Scissor lifts and man-lifts that require a smooth, gradual incline to climb the deck.

Agricultural Logistics
Large-scale farming operations use the HDT 216 for moving equipment between distant fields. Since the dovetail is rated to carry load, farmers can park a tractor or an implement directly on the tail, effectively utilizing the full length of the trailer. It's built for:

• Massive tractors and combines (with duals).

• Loaded hay wagons or 20+ round bales.

Recovery & Rental Fleets
Equipment rental companies love this model because the hydraulic tail acts as a "leveling" platform. If you are loading a piece of equipment that isn't running, the hydraulic tail can be adjusted to meet different dock heights or to create a more manageable winch angle.

Why the "216" specifically?

The 16,000 lb axles are the key. Most heavy goosenecks use 10k or 12k axles. By stepping up to the 16k setup with 17.5" 18-ply tires, you are buying:

Heat Dissipation: Better for long-haul, cross-country trips in summer.

Braking Safety: The standard disc brakes on this model stop significantly faster than the drum brakes found on lighter trailers.

Reduced Down-Time: These tires and axles are "overbuilt" for most loads, meaning fewer blowouts and bearing failures.

THE DIAMOND C (FMAX-216) ADVANTAGE OVER THE COMPETITION

• FRAME: Patented Engineered Beam (Lighter & Stronger) vs. Standard Heavy I-Beam

• NECK: 12" Curved Engineered Gooseneck vs. Traditional Square-Cut Necks

• DOVETAIL: 12' Hydraulic Self-Locking Tail (12.5° Angle) vs. Manual Flip-Over Ramps

• BRAKES: Electric-Over-Hydraulic (EOH) Disc Brakes vs. Standard Electric Drum Brakes

• AXLES: Dual 16,000 lb Heavy Duty Oil Bath Axles vs. Standard 10k/12k Axles

• FINISH: DM 6-Stage Powder Coat + Zinc Primer vs. Basic Single-Stage Paint

• HUBS: Premium Valcrum Aluminum Hubcaps vs. Cheap Plastic Snap-on Caps

• STABILITY: Cambered Chassis (Anti-Sag) vs. Flat-Frame Construction