Products / Belt weighers / PBW4-3
PBW4-3Precision belt weigher · four load cell, three idler
A fully floating weigh frame on four load cells with three weigh idlers: ±0.20% of actual weight at belt speeds up to 3.0 m/s*, rated to 6.0 m/s, for belts from 450 to 2,200 mm. Australian designed and made, in galvanised mild steel or stainless.
Or call 1300 101 666
Shown: PBW4-3 weighing aggregate on a 1050 mm belt (3D render from our CAD).
of actual weight, at belt speeds up to 3.0 m/s*
The PBW4-3 weigh frame, 360°
Three weigh idlers on a four-metre fully floating frame, shown with two optional stored-in-place billet calibration weights on their own lifting gear. Hot-dip galvanised mild steel on the conveyor stringers, mounting bolts fitted, as supplied for a 1050 mm belt. Stainless steel when needed.
From bare frame to running conveyor
Every part of a PBW4-3 installation, in the order it goes together. Accurate Industries supplies the lot: the weigh frame, weigh idlers, speed sensor and off-scale idlers, plus the integrator and calibration.
1. The weigh frame
The four-metre galvanised weigh frame on its four load cells, with the calibration weight arms.
2. Weigh idlers, on the stringers
Three weigh idler frames on the scale, bolted between the conveyor stringers (shown with optional billet calibration weights).
3. Off-scale idlers
Six standard idler frames either side of the scale, so the belt runs true through the weigh area.
4. Belt fitted
Carry and return belt in place: the conveyor as it runs empty. Add the speed sensor and integrator and it is weighing.
Fully floating, four load cells, three weigh idlers
- Four load cells under a fully floating weigh frame
- Three weigh idler frames for a long weigh span at high belt speeds
- Hot-dip galvanised mild steel, or stainless steel when needed
- Stored-in-place billet or plate calibration weights available, quoted separately
- Belt widths 450 – 2,200 mm
PBW4-3 at a glance
| Weigh frame | Fully floating, four load cell |
|---|---|
| No. of weigh idlers | Three |
| Belt width | 450 – 2,200 mm |
| Accuracy | ±0.20% of actual weight at belt speeds up to 3.0 m/s* |
| Max. rated belt speed | 6.0 m/s |
| Construction | Hot-dip galvanised mild steel, or stainless steel when needed |
| Finish | Galvanised, or bead blasted (stainless) |
| Calibration | Stored-in-place calibration weights available (plate weight or billet weight options), quoted separately |
| Integrator | EMC ModWeigh MP1 & MP2 or Schenck Process Intecont Tersus |
| Speed sensor | Spiral cage, USR trailing arm or drum mounted options |
* Stated accuracies are ± of actual weight and rely on correct installation and commissioning to the Accurate Industries IOM manual; actual performance varies with belt speed, material, conveyor design and site conditions.
Other frames in the family
PBW4-1
Single weigh idler · ±0.25% at belt speeds up to 1.0 m/s* · rated to 3.5 m/s
PBW4-4
Four weigh idlers · ±0.125% at belt speeds up to 4.0 m/s* · rated to 8.0 m/s
Tell us about your conveyor.
Belt width, belt speed, the material and the accuracy you need to hold. Send those and we confirm the frame, then quote the complete system: weigh frame, idlers, speed sensor, integrator, installation and calibration.