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Ramsey™ Model 90-125 Mid-Range Weighbelt Feeder

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Achieve critical product quality metrics with a conveyor belt feeder uniquely designed to provide the most accurate monitoring, blending and control capabilities. The Thermo Scientific™ Ramsey™ Model 90-125 Mid-Range Weighbelt Feeder measures industrial materials at moderate feed rates to reduce material waste, help maintain blend consistency and increase profits. Its unique cantilevered and formed channel frame design provides a strong, sturdy weigh structure and allows for quick and easy maintenance to augment the performance of your process and improve your bottom line. Paired with the Thermo Scientific™ Ramsey™ Micro-Tech 9105 feeder controller.


The Ramsey Model 90-125 Mid-Range Weighbelt Feeder incorporates our highly respected Series 30 single-idler, pivotless weighframe for the accurate measurement of processed materials.

Other special features and benefits include:

  • Cantilevered Frame: This feature permits quick and easy removal of the feeder’s vulcanized endless belts for cleaning, maintenance and belt replacement.
  • Formed Channel Frame: This design feature provides a sturdy and rugged weigh structure for precise weighing.
  • Flow Rates: 0.5 to 91 metric tons per hour (0.5 to 100 tons per hour) and belt loadings of 15 to 170kg/m (10 to 72 lb/ft).
  • Choice of Belt Widths: This weighbelt feeder is available in four belt widths, from 457 to 914mm (18 to 36 in.)
  • Various Feeder Lengths: Customize your feeder length to fit your application, from 1,524mm to over 4,572mm (5 to 15 ft).
  • Construction Material: Choose from carbon steel or stainless steel construction.
  • Speed Drives: Choose from constant speed or variable speed drives.
  • Structure Design: Choose from open, partially open, or fully enclosed designs.

Product Size -
Accuracy ±0.5% based on approved applications and test requirements
Belt Load (English) 10 lb/ft to 72 lb/ft
Belt Load (Metric) 15 kg/m to 107 kg/m
Belt Endless polyester carcass belting with Grade 2 SBR covers suitable for most applications with corrugated sidewalls or 25.4 mm (1 in) vanner edges. Other belts available depending on application.
Conveyor Cantilevered frame for easy belt removal. Customer may specifi belt removal on either right or left side.
Digital Speed Sensor Housing Weather-tight
Digital Speed Sensor Mounting Direct to shaft
Digital Speed Sensor Type Digital, brushless
Feed Rate 0.5 metric tons/hr to 91 metric tons/hr at 801 kg/m3 (0.5 ton/hr to 100 tons/hr at 50 lb/ft3) material
Head Pulley 254 mm (10 in) diameter, rubber lagged
Hysteresis <0.02% full scale
Idlers 102 mm (4 in) diameter idlers rated CEMA C with sealed-for-life bearings. Larger sizes available depending on application.
Item Description Ramsey Model 90-125 Mid-Range Weighbelt Feeder
Length (English) Feeder 5 ft to over 15 ft centerline of inlet to centerline of discharge
Length (Metric) Feeder 1,524 mm to over 4,572 mm centerline of inlet to centerline of discharge
Load Cell Excitation 10 VDC recommended, 15 VDC maximum
Load Cells Single platform type strain gauge transducer in compression
Nonlinearity <0.03% full scale
Repeatability <0.02% full scale
Scale Weightbridge Unitized, single-idler, pivotless full-floating Ramsey Series 30 style platform scale system
Speed Reducer Sumitomo or equal shaft mount. Other styles available.
Temperature Sensitivity Zero: <0.0027% full scale/°C (<0.0015% full scale/°F)
Span: <0.0014% of reading/°C (<0.0008% of reading/°F)
Width (English) Belt 18 in, 24 in, 30 in, 36 in
Width (Metric) Belt 457 mm, 610 mm, 762 mm, 914 mm