Rubber-belt HVBF family
Replacement Cloth for Horizontal Vacuum Belt Filters
This page covers replacement cloth for the rubber-belt HVBF family across all OEMs listed below. Belt filter is not one machine — indexing and tray vacuum filters are a different family and are not covered here.
Independent replacement cloth — not an OEM spare part. Dimensions and construction are confirmed per enquiry.
How the machine works
Where the cloth sits
On a rubber-belt horizontal vacuum belt filter the cloth is not the belt that carries the load. It rides on top of a grooved rubber transporter belt, which carries vacuum through its drainage grooves while the cloth holds the cake and lets filtrate through. The cloth runs continuously, so it is a consumable, not a fixture: it tracks over rollers, is tensioned every pass, wears at the edges where it meets the seal, and is washed on every return. Belt widths in this family commonly reach 4.5–4.8 m. Joints are made as clipper, PAD or spiral seams, with an edge seal down both sides.
Cloth specifications for this family →
These machines are also run on a dewatering duty, where the moisture in the cake leaving the belt is the figure being managed rather than filtrate clarity. Cloth for the dewatering duty →
Role of the cloth
Three things worth knowing
- It is a running consumable. The belt does not fail once — it degrades, and the cake tells you first.
- Failure shows up as a symptom, not a spec. Start from what you see: seam / joint failure or belt tracking.
- The spec language — weave, polymer, seam, edge, width — lives on the product page, not here. This page is about your machine.
Key dimensions and duty
Reference figures, and what is still open
Industry reference
Figures observed on OEM machines in this family. These are not our mill's figures.
| Parameter | Industry reference |
|---|---|
| Belt width in this family | Commonly up to 4.5–4.8 m |
| Seam types in service | Clipper, PAD or spiral, with an edge seal |
| Cloth duty | Continuous consumable, replaced on wear |
| Individual machine size | Per OEM — see the machine list below |
Parameters to confirm with your RFQ
Our own mill figures are not published yet. We do not print a number we have not measured, so these are confirmed in writing against your drawing during the engineering review.
| Parameter | Our mill |
|---|---|
| Maximum weaving width | Confirmed per RFQ |
| Maximum finished belt length | Confirmed per RFQ |
| Cloth weight for your duty | Confirmed per RFQ |
| Air permeability range | Confirmed per RFQ |
| Lead time | Confirmed per RFQ |
OEM machine list
Machine families in the rubber-belt HVBF group
12 OEM machine families you can enquire about. Brand names are used only to identify machine models; whether a cloth fits a machine is confirmed in writing for each enquiry.
| OEM family | Typical duty | Cloth form | What we need from you |
|---|---|---|---|
| ANDRITZ Delkor HVBF Published size: Large plant units | Mining, fertilizer | Endless belt, clipper / PAD, edge seal | Brand + model + width + seam photo |
| TAKRAF DELKOR HBF Published size: 1–162 m² site claim | Phosphate, iron, coal | Endless belt, clipper / PAD, edge seal | Brand + model + width + seam photo |
| FLSmidth EIMCO Extractor Published size: Up to ~257 m² heritage | FGD, minerals | Endless belt, clipper / PAD, edge seal | Brand + model + width + seam photo |
| HASLER Filtres Philippe Published size: Custom | Fertilizer, hydromet, Li listed | Endless belt, clipper / PAD, edge seal | Brand + model + width + seam photo |
| Compositech T-REX / Chemifilter Published size: ~4 m FGD class | FGD, chemicals US | Endless belt, clipper / PAD, edge seal | Brand + model + width + seam photo |
| EKCP EIMCO-KCP Published size: 5–200 m² | IN FGD + phosphate | Endless belt, clipper / PAD, edge seal | Brand + model + width + seam photo |
| GKD HVBF equipment Published size: Custom ZA | Mining, Li / PGM, fertilizer | Endless belt, clipper / PAD, edge seal | Brand + model + width + seam photo |
| Jord HVBF / Viper Published size: Plant + pilot | AU iron, Li tailings | Endless belt, clipper / PAD, edge seal | Brand + model + width + seam photo |
| Roytec VBF | Mining, spodumene mention | Endless belt, clipper / PAD, edge seal | Brand + model + width + seam photo |
| Metso Larox RB | Minerals | Endless belt, clipper / PAD, edge seal | Brand + model + width + seam photo |
| Toncin DU Published size: DU tables 10–88 m² class | CN FGD, mining, Li | Endless belt, clipper / PAD, edge seal | Brand + model + width + seam photo |
| WesTech HBF | Minerals, FGD directories | Endless belt, clipper / PAD, edge seal | Brand + model + width + seam photo |
Brand pages publish in batches. A brand without a link here is still quoted the same way — through the engineering review.
Two machines that are not in the table above, on purpose.
BHS BF — Pharma, food, sieves. Different cloth mechanics — not mapped to our belt range.
Metso Larox RT / Pannevis — Chemicals. Indexing vacuum — do not mix with Larox PF or RB.
The Metso naming is the one that trips people up: Larox RB is the rubber-belt legacy line and it is in the table above. Larox RT / Pannevis is the indexing machine and it is not. Larox PF is a vertical tower press — that family has its own page.
Replacement route
How a replacement belt gets made
On most machines in this family the cloth already comes from more than one source — the OEM and third-party weavers both supply it. That is the market we work in, and we say so rather than implying a channel we do not have.
- 1
Send the dimensions
Brand, model, belt width and length, seam type, and a photo of the old cloth and its joint. A nameplate photo covers most of it.
How to measure your old belt → - 2
Dimensions and construction confirmed
Dimensions and construction are confirmed per enquiry, including the joint type — clipper, PAD or spiral — and the edge treatment.
- 3
Check, pack, ship
Air permeability and tensile checks before packing, then export crating with the machine reference on the label.
Slurries on this machine
What these filters are running
Phosphogypsum filtration
WPPA process gypsum on horizontal vacuum belts — the observed standard route for this slurry.
FGD gypsum dewatering
Desulphurisation gypsum on belt filters. Drum filters are also in service on this duty.
More slurry pages publish in later batches.
What we need from you
Brand + model + width + seam photo
- Machine brand
- Machine model — "unknown" is an accepted answer, send the nameplate instead
- Belt width
- Belt length
- A photo of the old cloth and its seam
- What went wrong on the last belt
Engineering RFQ
Send it and get a real answer
A cloth quote without dimensions is a guess. With the list on the left we can quote the belt, or tell you we are not the right supplier for that machine.