Hapman Tubular Drag Conveyors – Clean, Gentle, Efficient Material Transport
Hapman’s TubePro™ Tubular Drag Conveyor is a fully enclosed, multi-plane conveying solution engineered to move powders, granules, fibers, or friable clumps under diverse conditions—whether hot or cold, wet or dry, abrasive or inert.
Key Attributes & Performance Advantages
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Gentle en masse movement: The design moves material between pucks at low speed and high torque, minimizing turbulence, degradation, and product separation.
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Start/stop under load capability: Starts and restarts fully loaded, reducing downtime and product waste.
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Dust-tight, enclosed design: Keeps materials contained, preventing spillage, dusting, odors, or contamination.
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Custom layout flexibility: Multiple configurations—horizontal, vertical, bends, multiple inlets/discharges—enable fit into complex plant layouts.
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Robust construction: Uses heavy Schedule 40 or optional Schedule 80 pipe, continuous welds, and interlocking flanged joints for structural integrity.
Chain & Flight Options
Hapman offers multiple chain and flight options to match material and operating conditions:
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Sealed pin chain + UHMW flights: Keeps material out of chain joints, ideal for abrasive or sticky materials.
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Rivetless chain + UHMW flights: Rugged and reliable for many standard bulk materials.
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Rivetless chain + Cast Iron flights: For elevated temperature or heavier duty applications.
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Uni-Seal chain: A hybrid style for improved bend performance in compact layouts.
Optional Features & Enhancements
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Self-cleaning discharge gate: Rounded to conform to the pipe, eliminating material traps.
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Chain hammer & brush box cleaning systems: Help dislodge stuck material or buildup within the conveyor.
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Auto-tensioner: Maintains optimum chain tension, issuing notifications when manual intervention is needed.
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Clean-in-Place (CIP) capability: Can be configured with nozzles, valves, and connections for inline cleaning.
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Control & integration systems: Full automation packages, PLC controls, sensors, and custom control logic available.
Advantages Over Alternative Conveying Systems
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Lower energy consumption: Requires modest drive power compared to pneumatic systems, leading to reduced operating costs.
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Better handling of wet or sticky materials: Chain-based drag has more pulling strength and is less prone to plugging than cable designs.
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Layout flexibility and modular design: Can route material over multiple planes, with inlets and outlets at multiple points.
Applications & Usage
Hapman’s tubular drag conveyors are suited for a wide range of industries and materials, including:
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Chemicals, minerals, and metals
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Food, pet food, and ingredients
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Wastewater and biosolids
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Plastics, resins, and bulk powders
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Pharmaceutical and specialty materials
With decades of innovation and Hapman’s Performantee® 100% performance guarantee, TubePro conveyors are trusted for reliability, longevity, and efficient bulk material transport.
