Products / Belt weighers / PBW4-4
PBW4-4Precision belt weigher · four load cell, four idler
A fully floating weigh frame on four load cells with four weigh idlers: the longest weigh span in the range, ±0.125% of actual weight at belt speeds up to 4.0 m/s*, rated to 8.0 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: a PBW2-2 on a running belt; the PBW4-4 header is still to be rendered.
of actual weight, at belt speeds up to 4.0 m/s*
The PBW4-4 weigh frame
Four weigh idlers on a fully floating, four load cell frame: the longest weigh span in the range, for the highest accuracy class at the highest belt speeds. Shown in hot-dip galvanised mild steel in a 1000 mm belt conveyor, mounting bolts fitted; stainless steel when needed.
From bare frame to running conveyor
Every part of a PBW4-4 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 galvanised weigh frame on its four load cells, with the calibration weight carriage.
2. Four weigh idlers, on the stringers
Four weigh idler frames on the scale, bolted between the conveyor stringers.
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, four weigh idlers
- Four load cells under a fully floating weigh frame
- Four weigh idler frames: the longest weigh span in the range
- Hot-dip galvanised mild steel, or stainless steel when needed
- Stored-in-place calibration weights available, quoted separately
- Belt widths 450 – 2,200 mm
As supplied
Hot-dip galvanised, with shipping tubes fitted for transport.
Stainless steel, when needed
The same frame in bead-blasted stainless steel.
PBW4-4 at a glance
| Weigh frame | Fully floating, four load cell |
|---|---|
| No. of weigh idlers | Four |
| Belt width | 450 – 2,200 mm |
| Accuracy | ±0.125% of actual weight at belt speeds up to 4.0 m/s* |
| Max. rated belt speed | 8.0 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
PBW4-3
Three weigh idlers · ±0.20% at belt speeds up to 3.0 m/s* · rated to 6.0 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.