Quick answer: the Veybelt 936 series is a 38.1 mm (1.5 in) pitch plastic modular belt platform with a belt strength of 33,000 N/m (PP). Two surfaces: flush grid (18 mm thick) and nub top (21 mm thick), both 25% open, both on the same 936 sprockets. The two share sprockets and frames, so going from grid to nub top later is a straight belt swap.
What is the 936 series?
The 936 pairs an intermediate 38.1 mm pitch with 33,000 N/m (PP) belt strength and 25% open area. That is the combination you want when the belt has to stay strong while water and air pass through it: washdown and rinsing lines, cooling and drying sections, processing conveyors that get hosed down between shifts. PP modules brick-lay on hinge rods; assemble to the width you need, and swap individual modules when they wear.
| Pitch | 38.1 mm (1.5 in) |
|---|---|
| Belt strength | 33,000 N/m (PP) |
| Thickness | 18 mm (flush grid) / 21 mm (nub top) |
| Open area | 25% (both surfaces) |
| Material | PP |
| Standard color | Beige |
| Drive | Positive sprocket drive, POM sprockets, multiple teeth options |
Choose your surface: the two 936 variants
| Variant | Open area | Best for | Avoid when |
|---|---|---|---|
| 936 Flush Grid | 25% | Washdown and rinsing lines, drain and air-cooling sections; conveyors that need the full 33,000 N/m and wash-through cleaning at the same time | Small or unstable product catches in the grid openings, or spills have to stay on the belt |
| 936 Nub Top | 25% | Sticky, wet or delicate flat product. Contact is limited to the nub tips, so items lift off cleanly instead of peeling, and the openings still drain | Product is soft enough to deform on the nubs, or a printing, labeling or inspection station needs a flat carrying plane |
The practical test: if the main job is drainage and airflow under a conventional carrying surface, flush grid. If product comes off the current belt with a sucking sound, or sweats, or shows belt marks, nub top; the nubs cut the contact area and flat items release at the transfer instead of following the belt around the nose.
Matching sprockets
One POM (acetal) sprocket, the 936 series sprocket, fits both belts:
- Teeth options: several counts available. Drive shaft height and belt speed set the choice; a higher count runs smoother and gives a larger pitch diameter.
- Bore types: square bore (self-centering, the usual pick), round bore, or a bushing insert where the shaft is worn or non-standard.
- How many per shaft: one sprocket per 100–150 mm of width covers most jobs. The center sprocket is fixed to the shaft; everything else floats to absorb thermal expansion.
Accessories for a complete 936 conveyor
- Hinge rods: spare Nylon/PP rods for module replacement and belt repair.
- Return wheels and pressure rollers: support under the return side, hold-down where the conveyor climbs or drops.
- Bearing bushings: keep the sprockets located side-to-side on the drive shaft.
- Bushing inserts: step the sprocket bore down to the shaft you have (30 / 40 / 50 / 60 mm).
How to spec your 936 order
Five details are all we need for a confirmed bill of materials:
- Surface style (flush grid / nub top)
- Belt width and conveyor length (center-to-center)
- Product weight and speed, ambient/washdown temperature
- Shaft size, for matching square/round/bushing bores
- Accessories: hinge rods, return wheels, pressure rollers, bushings
Request a 936 series quote. Direct from the manufacturing base, widths built in module multiples.
