Overview
When your dock handles heavier cartons at high volume and needs a powered flexible conveyor built to take the daily punishment, the BestFlex 1.9 delivers. This expandable motorized roller conveyor uses 1.9-inch diameter heavy-duty steel rollers — larger and more durable than the 1.5-inch rollers on the standard BestFlex model — to provide a robust conveying surface that handles heavier packages day after day without premature roller wear.
Like all BestFlex models, the 1.9 powers packages at adjustable speeds from 0 to 120 feet per minute using DC drive motors on standard 120VAC single-phase power. It expands, contracts, and curves to serve multiple dock doors from a single portable unit, and retracts to a compact footprint when not in use. The larger 8×2-inch heavy-duty casters roll smoothly over dock floors and uneven trailer transitions, making repositioning faster and more stable than smaller-caster alternatives.
Features and Benefits
The BestFlex 1.9 is engineered for the demands of warehouse and distribution center dock operations where conveyors are deployed, retracted, and repositioned throughout every shift.
- 100 lb per linear foot load capacity
- Heavy-duty 16-gauge precision-bearing 1.9-inch diameter zinc-plated steel rollers on 12mm axles for maximum durability
- Durable DC drive motors with 120VAC single-phase power — adjustable line speeds from 0 to 120 fpm
- Operator start/stop controls with on/off switches on both ends of the conveyor
- Self-tracking design guides packages through curves without engineered sections or guards
- 2-inch aluminum extruded side plates with bolted construction for rigid, lightweight frame integrity
- Adjustable conveyor height from 28.5 to 37.5 inches
- Heavy-duty 8×2-inch casters with brakes for smooth rolling and stable operation
- Handles on each end for safe repositioning
- Quick-change drive belt system reduces maintenance downtime
Optional Flow Control
The BestFlex 1.9 supports the same three levels of electronic flow control available on the 1.5 model, adding intelligent package handling to every dock operation.
Electronic Photo Eye Package Stop — Discharge-end sensors detect a package and stop the conveyor automatically, protecting delicate items from being driven into a fixed end and saving power when the line is not actively moving cartons.
Zero-Pressure Accumulation — Zoned control advances packages one at a time only when the next zone is clear. Packages accumulate without contacting each other, preventing damage and providing a controlled, steady release at the loading or unloading point. A time-out function saves energy by powering the conveyor only when needed.
Indexing — The conveyor starts when the leading edge of a package is detected and runs until the trailing edge passes plus a preset time delay. This turns the BestFlex 1.9 into an end-of-line storage buffer that advances packages on demand.
BestFlex 1.9 vs. BestFlex 1.5
Both models share the same 100 lb/ft capacity, DC drive system, and optional flow control features. The key differences are in the roller size, caster size, and frame construction — all designed to make the 1.9 more durable in heavier-duty environments.
- Roller diameter: 1.9-inch (1.9) vs. 1.5-inch (1.5) — larger rollers provide a more durable conveying surface for heavier cartons
- Caster size: 8×2-inch standard (1.9) vs. 6×2-inch standard (1.5) — heavier casters roll better on rough dock floors and trailer transitions
- Side plate construction: 2-inch aluminum (1.9) vs. 1.59-inch aluminum (1.5) — wider side plates add rigidity for heavier-frame applications
- Compaction ratio: The 1.5 achieves a tighter compaction ratio for smaller storage footprint; the 1.9 trades a slightly larger retracted size for heavier-duty roller construction
Choose the 1.5 when maximum compaction, lighter parcels, and faster flow speeds are the priority. Choose the 1.9 when roller durability, heavier cartons, and demanding dock environments matter more than storage footprint.
Applications
The BestFlex 1.9 is the standard powered flex conveyor for warehouse and distribution center shipping and receiving departments, third-party logistics providers, and manufacturing and packaging operations that handle heavier cartons at medium-to-high volume. It integrates with herringbone transitions and guide tracks for seamless connection to fixed feed conveyors, and the PowerTrax power-assist option makes it practical to maneuver heavy, fully extended units into and out of deep trailers with minimal operator effort.
Sizing and Configuration
The BestFlex 1.9 is available in 18, 24, 30, and 36-inch widths with extended lengths from 12 to 48 feet. Standard axle centers are 5 inches, with 4-inch and 3-inch options for smaller packages. The conveyor runs on 120VAC single-phase power with 15-amp standard service (20 and 30-amp optional). Multiple sections can be linked using the electrical interface kit for synchronized, continuous operation.