Demco 40′ Liquid Tender Trailer

OVERVIEW

Engineered for high-capacity agricultural liquid transport, the Demco 40′ Liquid Tender Trailer delivers the durability, flexibility, and operational reliability required for demanding field applications. Designed to support modern fertilizer, water, and chemical application systems, this heavy-duty liquid tender trailer is built to perform in harsh environments while maintaining consistent road and field performance.

At its core, the Demco 40′ Liquid Tender Trailer combines structural strength with thoughtful engineering to meet the needs of farms, custom applicators, and agricultural service providers who rely on dependable liquid hauling equipment throughout the season. Its reinforced steel frame, corrosion-resistant construction, and carefully sealed mating surfaces help protect against moisture intrusion, material fatigue, and long-term wear, extending service life even in high-use operations.

The trailer’s design prioritizes both capacity and stability. With a wide stance, tandem axle configuration, and balanced weight distribution, the Demco 40′ Liquid Tender Trailer is well-suited for transporting large liquid volumes while maintaining predictable handling on highways, gravel roads, and jobsite conditions. The 24-inch king pin provides a secure connection to semi-tractors, ensuring stable towing and confident maneuverability during transport and positioning.

Liquid containment and tank compatibility are key strengths of this platform. The trailer supports multiple tank configurations, allowing operators to select capacities that best align with their application requirements. Black plastic liquid tanks are engineered to limit light exposure, helping reduce algae and microbial growth within the tank interior—an important consideration for fertilizer and chemical transport. Optional center-drain and end-drain tank designs further enhance operational flexibility, making loading, unloading, and cleanout more efficient across a range of liquid products.

Durability is reinforced throughout the trailer’s construction. High-grade structural steel is used in the main beams, cross members, side rails, and rub rails to provide consistent load support and resistance to twisting under heavy payloads. The apitong hardwood deck delivers proven strength and impact resistance, offering a durable surface for operators working around tanks, plumbing, and accessories. Carefully spaced cross members help distribute loads evenly, contributing to long-term structural integrity and reduced frame stress.

Road safety and serviceability are also integral to the design. The Demco 40′ Liquid Tender Trailer is equipped with DOT-approved LED lighting and reflective tape to enhance visibility during transport. Color-coded brake components simplify maintenance and inspections, while rubber-mounted lights help reduce vibration-related wear. Tandem axles with spring ride suspension are standard, with optional air ride suspension available for applications requiring enhanced ride quality and load protection.

Operational convenience features are incorporated throughout the trailer layout. Aluminum access steps with handrails provide safer access to tanks and service areas, while optional ladder configurations accommodate larger tank setups. Storage bins and toolboxes can be added on either side of the trailer to keep hoses, fittings, and tools organized and accessible in the field. Electrical power options allow operators to support front-mounted or front-and-rear systems, depending on equipment requirements.

Customization plays a significant role in the trailer’s versatility. Operators can tailor the Demco 40′ Liquid Tender Trailer with a range of available options, including anti-lock braking systems on select axles, aluminum wheels, and custom paint colors. These configurable features allow the trailer to integrate seamlessly into existing fleets while supporting specific operational preferences and branding requirements.

From seasonal fertilizer application to year-round liquid hauling support, the Demco 40′ Liquid Tender Trailer is designed to adapt to changing demands without compromising performance. Its balance of capacity, structural integrity, and configurable options makes it a practical solution for agricultural operations that require reliable equipment capable of handling consistent workloads.

Built with attention to detail and long-term durability in mind, the Demco 40′ Liquid Tender Trailer represents a dependable investment for operations seeking a high-capacity liquid hauling platform. Whether supporting large-scale farming operations or custom application services, this trailer delivers the strength, flexibility, and field-ready performance needed to keep liquid transport efficient, controlled, and dependable season after season.

FEATURES & BENEFITS

• 24” King pin
• Exterior mating surfaces are caulked prior to paint to prevent rust
• 2 aluminum steps with handrails
• Black plastic liquid tanks eliminate light from reaching the interior contents preventing algae and microbes growth
• 16.5” x 7” brake size, color coded
• Midship turn signals
• 255/70 R22.5 - 16 ply DOT tires and wheels
• Rubber mounted LED lights, DOT approved tape

Options

• Air ride suspension for 40’ trailer
• ABS installed on second axle
• 12-volt power (front or front & rear)
• Tank options: Den Hartog end and center drain tanks 2350, 2750, 3250 gallons
• Enduraplas center drain on 2800 and 3200
• Storage bins and/or Toolboxes: 3 on passenger side and 3 on drivers side
• Front and rear ladder options for 3250 gallon tank only
• Aluminum rims, hub piloted (each)
• Custom paint color (red, gray, white, blue)

With its high-capacity design, corrosion-resistant construction, and configurable tank and suspension options, the Demco 40′ Liquid Tender Trailer delivers dependable performance for demanding agricultural liquid transport operations.

Explore our Material Handling Equipment collection to find the right setup for your operation.

Benefits

✔ Designed for high-capacity agricultural liquid hauling
✔ Corrosion-resistant construction helps extend service life
✔ Aluminum steps and handrails provide convenient tank access
✔ Black tank design helps limit light exposure to contents
✔ Color-coded brake components assist with inspection and service
✔ DOT-approved lighting and signals support on-road visibility
✔ Heavy-duty tires and wheels for field and highway transport
✔ Configurable suspension, braking, and electrical options
✔ Multiple tank and storage configurations for operational flexibility

SPECIFICATIONS

Main Beam Sizes

Decking

SHIPPING & SUPPORT

This product ships directly from Demco Products U.S. manufacturing facility. Typical lead time is approximately 5–7 business days before shipment.

Need assistance selecting the right trailer size or available options?
Contact our team at support@grainhog.com or call (888) 464-4880 — we’re happy to help.

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