SandMax™ 402BXF

Steel-strength durability at aluminum-class weight. The payload advantage, without compromise.

Why SandMax™

Built for the Frac Sand Industry

The SandMax™ 402BXF is a purpose-built bottom dump hopper trailer engineered specifically for frac sand and bulk aggregate hauling. Every pound of steel on this trailer is there for a reason — nothing added for the sake of it.

Hardox® 450 Hopper

Steel-strength durability at aluminum-class weight. The hopper is built from genuine Hardox® 450 wear-resistant steel — certified Hardox® In My Body.

Convex Panel Design

Stronger convex hopper panels carry the load with confidence — no weight goes to waste, every pound of steel earns its place.

Low-Profile Gate

The low-profile high-clearance bottom dump gate keeps the center of gravity down for stable hauling and clean, controlled discharge.

100,000 PSI Chassis

The chassis is fabricated from 100,000 PSI hi-tensile steel — engineered for severe frac sand duty cycle after cycle.

Electroplated Components

Electroplated anti-corrosion treatment on fasteners and hardware holds up against the elements, season after season.

Maximum Payload

Ultra-low profile hopper design maximizes legal payload across North American bridge laws — more sand per trip, fewer trips.

Technical Specifications

402BXF SandMax™

Model	402BXF SandMax™
Hopper Material	Hardox® 450 Wear-Resistant Steel
Chassis	100,000 PSI Hi-Tensile Steel
Hopper Panels	Convex Panel Design
Gate Design	Low-Profile High-Clearance Bottom Dump
Center of Gravity	Ultra-Low Profile Hopper
Component Protection	Electroplated Anti-Corrosion Treatment