Crushed Bentonite Cat Litter OEM: 9 Spec Lines

Abstract — quick answer

Crushed bentonite cat litter OEM means producing natural sodium bentonite crushed into irregular granules to a written specification rather than a catalogue standard. At Gormeet the crushed grade GOR-NB-101A is specified at 1–3.5 mm (over 95% passing), 3%–4% moisture, dust at or below 0.1%, absorption at or above 400%, bulk density 0.75–1.0 g/cm³, and clumps that withstand three drops from 40 cm. Standard MOQ is 10 tons, roughly one 20GP. The part that actually decides your third container is not the grade — it is whether the nine lines in §02 were written down before the first one.

Most OEM conversations start the same way. A buyer sends a reference bag, or a photo of a competitor's packaging, and asks: "Can you make this, and what is the price per ton?"

That question is answerable. What is harder to answer is the one that arrives nine months later, after three shipments and a retail listing: "Why is this batch dustier than the sample I approved?"

The two questions are connected. A crushed bentonite programme does not fail because the factory cannot make good product. It fails because the product was never defined precisely enough for "good" to be reproducible — and because nothing in the paperwork made the gap visible until a customer noticed.

What follows is written as a specification document rather than a sales page. It covers what crushed bentonite actually is, which lines carry the weight, what an open specification costs in money rather than adjectives, how the process runs from brief to locked recipe, and how to verify each shipment without flying to Shandong.

01MaterialCrushed vs Ball: What Actually Changes

Both grades are the same mineral. Crushed bentonite and ball bentonite are natural sodium bentonite. The difference is mechanical: ball bentonite is rolled into spherical beads and sieved into tight size bands, while crushed bentonite is mined, dried and crushed into irregular granules with sharper edges and a wider spread of particle sizes.

That single process difference propagates into almost every performance number, which is why the two grades sit in different commercial positions rather than competing head to head.

Specification	GOR-NB-112A · Ball	GOR-NB-101A · Crushed
Granule form	Spherical, rolled clay beads	Irregular crushed granules
Main material	Natural sodium bentonite (SiO₂ ≥ 65%) — same mineral, different forming route
Granule size	1–3 mm (fine 0.5–1.5 / coarse 2–4)	1–3.5 mm, >95% passing
Bulk density	0.85–1.0 g/cm³	0.75–1.0 g/cm³
Moisture content	≤ 10%	3%–4%
Dust content	≤ 0.5%	≤ 0.1% — virtually dust-free
Absorption rate	≥ 300%	≥ 400%
Clumping	Firm, non-breaking clumps within 3 seconds; clumps withstand 3 drops from 40 cm
Odor control	Natural bentonite adsorption + optional fragrance	Crushed granules wrap tightly for strong adsorption
Flushable	No — clay does not dissolve	No — clay does not dissolve

Baseline production values for both grades. Bulk density can shift slightly with mine and batch, which is why it is tested batch by batch on volume orders rather than fixed once. Source: Gormeet product specifications, GOR-NB-112A and GOR-NB-101A.

1.1

Why the moisture number is a commercial line, not a lab detail

The moisture gap is the most commercially significant line in that table, and it is the one buyers skip. Ball bentonite is specified at or below 10% moisture; Gormeet's crushed grade is specified at 3%–4%.

You are paying freight and product cost on water. A six-point moisture difference on a 20-tonne load is roughly 1.2 tonnes of water crossing an ocean. It has a second effect that surfaces later: moisture variability within a batch changes how readily granules bond when wet, which reaches the end user as "sometimes it clumps, sometimes it mushy-breaks."

1.2

Why crushed granules dust less than rolled beads

Counter-intuitive but consistent across production: the crushed grade is specified at or below 0.1% dust against 0.5% for ball. Rolled beads have a smooth surface that sheds fine particles as they abrade against each other in the bag; irregular crushed granules interlock and generate less free fines under the same handling.

For a brand selling into markets where household dust is a purchase objection — most of Western Europe, and increasingly North America — this is a positioning asset, not only a QC number. It is also why dust belongs on your spec sheet as a ceiling with a test method rather than as the word "low-dust."

Note · Claim discipline

One claim to strike from your brief now. Neither bentonite grade is flushable. Clay does not dissolve in water, and flushable claims on bentonite have drawn regulatory attention in several markets. If your brand position depends on flushability, the correct move is a plant-based material — crushed tofu or cassava — not a softer word on the packaging. Keep the two product lines separate rather than asking a clay supplier to stretch a claim.

02The specificationThe Nine Specification Lines That Decide Batch Consistency

Below is the specification structure Gormeet uses for crushed bentonite OEM and private label. Each line matters for a different reason, and each one should carry a number, a test method and a tolerance — not an adjective. A spec sheet full of adjectives is not a specification; it is a set of expectations.

Granule size range and the passing threshold State the band and the proportion that must fall inside it. "1–3.5 mm, over 95% passing" is a specification. "1–3 mm" alone is not, because it does not say what happens to the other 5% or how the lower bound is measured. This line drives scooping feel, tracking and bulk density simultaneously. Baseline1–3.5 mm · >95% passing

Dust content ceiling Baseline ≤ 0.1% for crushed grade. Fix the method — controlled air-flow measurement, not a visual shake test — and the sampling point. Factory gate and pre-shipment are different numbers. Dust is the single most common source of "the sample was better than the shipment." Baseline≤ 0.1%

Absorption rate Baseline ≥ 400% of own weight for crushed. Specify whether this is measured on a sieved fraction or a whole-sample basis; the two are not interchangeable. Absorption is what your end user experiences as litter economy, so it belongs on the sheet even when the buyer never asks. Baseline≥ 400%

Bulk density window Baseline 0.75–1.0 g/cm³. This is the line that quietly determines how many tonnes fit in a container, and therefore your freight cost per sellable tonne. A density shift inside the acceptable performance range can still move your landed cost. Treat it as a commercial parameter, not a lab curiosity. Baseline0.75–1.0 g/cm³

Moisture content Baseline 3%–4%. Specify the assay — halogen moisture analyser at 105°C to constant weight is the Gormeet laboratory method — and the acceptance band. An unbounded moisture spec is where "it was fine last time" begins. Baseline3%–4%

Clumping performance and clump strength Baseline: firm, non-breaking clumps within 3 seconds, surviving three drops from 40 cm. Clumping speed alone is insufficient — a fast clump that crumbles during scooping is worse for the user than a slightly slower one that holds. Specify both, plus the drop height. Baseline≤ 3 s · 3 drops @ 40 cm

Scent and additive package Unscented, or a named fragrance (lavender, lemon, baby powder, green tea, or a custom scent), plus optional additives such as activated carbon or baking soda. Decide this before the trial batch — additives change absorption, colour and cost, so a scent change after approval is a re-qualification, not a swap. Options5 scents · custom · unscented

Packaging, colour and printing Bag format and volume, brand printing, colour of granule if customised. Colour choice interacts with the appearance check in every batch inspection, so it is a specification line rather than a design decision. Options5L–20L · box available

Loading plan, in tonnes, for your exact SKU mix The line most often missing entirely. The loading plan belongs in the specification because it is where a quoted price becomes a real cost per tonne — and because a packaging change invalidates the previous plan. Ask for it in writing, per SKU mix, before you compare anything. Requiredt / container · per bag + pallet mix

Note · The gap nobody sends

Line 9 is the one buyers never send. Two suppliers can meet every performance line you wrote and still deliver materially different tonnes per container. The performance sheet tells you what the product does; the loading plan tells you what it costs. Both belong on the same document, signed at the same time.

Download the 9-line specification template (PDF) The same structure as §02, formatted as a fill-in spec sheet you can send to any supplier — ours included. Gated by email so we can follow up if the first quote comes back with gaps.

Download PDF ↓

03The trapWhat an Open Specification Costs

An open specification — one that says low dust, fast clumping, good absorption — is not a neutral placeholder. It is an active decision to let the factory define your product within a wide band, and to absorb whatever variation that band allows.

The cost does not appear on the invoice. It appears in three places.

3.1

Cost one: you buy water and air

Moisture and bulk density are the two lines that directly price what you ship. Higher moisture means you pay product price and ocean freight on water. Lower bulk density means fewer tonnes per container at the same freight — so your cost per sellable tonne rises even when the quoted price per tonne is identical.

Bulk density · published window for crushed grade, g/cm³

0.70

0.80

0.90

1.00

0.75 low

1.00 high

0.75 g/cm³ — inside spec 1.00 g/cm³ — inside spec Same grade, same certificate, 25% density spread

The published window spans 0.75–1.0 g/cm³ — a 25% spread, entirely inside specification. Because container loading for this product is volume-limited rather than weight-limited, that spread translates into a materially different number of tonnes per container, and therefore a different freight cost per sellable tonne. This illustrates the mechanism, not a quoted loading figure: actual tonnes depend on your bag dimensions, palletisation and the loading plan quoted for your SKU mix. Ask for that plan in writing.

3.2

Cost two: the drift is invisible until retail

When performance is specified as adjectives, batch-to-batch variation stays inside the letter of the agreement. Shipment one has 0.09% dust, shipment three has 0.4%. Both are "low dust." Both pass. Your customer's review section does not care about the agreement.

The damage mechanism is well understood in private label generally: the brand absorbs the complaint, the retailer absorbs the return, and the supplier can correctly state that the specification was met. The only defence is a number on the sheet and a certificate that reports against it.

Comparability is created by the spec sheet, not by the negotiation.The working rule of every stage below

3.3

Cost three: you cannot compare quotes

Two quotes for "crushed bentonite, low dust, fast clumping, 10 tons" are not comparable, because each supplier has legitimately filled the open space differently. One is quoting denser product with higher moisture; the other is quoting a drier, lighter granule. The price difference is real, but it is a difference between two different products, not between two suppliers of the same thing.

Once every performance line carries a number, a method and a tolerance, and loading is quoted for your bag mix, price per tonne becomes arithmetic. Until then it is an opinion.

Risk · Mined material

The specific exposure in a bentonite OEM programme. Bentonite is a mined material, not a synthesised one. Ore varies by seam, and bulk density is a property of the ore body — which is exactly why Gormeet tests it batch by batch on volume orders rather than declaring one fixed number. A supplier who promises an absolute, never-varying bulk density across years of shipments is either blending from stockpiles, or describing intent rather than production. The realistic and testable commitment is a bounded window plus per-batch reporting — so make that the thing you require.

04The processSix Stages From Brief to Locked Recipe

A "locked recipe" is not a romantic phrase for a good sample. It is a document set: a signed specification, a retained reference sample, and a production record capable of reproducing both. Getting there takes six stages, and each one produces a specific artefact you should be able to hold.

1Brief

Translate the market position into numbers

Start from what the product must do commercially — value tier, dust-sensitive market, clumping-first positioning, eco-adjacent claim — then convert each of those into one of the nine lines. This is where wording gets replaced by numbers, and where claims the material cannot support (flushability, for instance) get removed from the brief.

Target specification draft

2Sample

Produce against the draft, not against the catalogue

The sample is made to the draft spec so the gap between draft and reality becomes visible early. Scent and additive decisions are settled here, because they shift absorption, colour and cost. Granule range and scent selection are normally confirmed at this point rather than later in production.

Candidate sample + preliminary test values

3Qualify

Test the sample against every line, in writing

Both sides test. Your evaluation covers what can be judged by hand — scooping behaviour, tracking, odour over several days, how it reads to a consumer. The laboratory covers what needs instruments: dust by controlled air-flow, absorption by sieving, moisture by halogen analyser, size by laser verification, clump hardness and drop resistance. Any line that fails is adjusted and re-sampled; nothing gets waived into the spec.

Test report against each line

4Lock

Freeze the numbers, sign the sheet, retain the reference

Approved values become the specification, including tolerances and test methods. A reference sample from the approved batch is retained on both sides, so future disputes compare against an object rather than a memory. From this moment, any change to formulation, granule range, scent or additive package is a re-qualification with its own sample round — not an in-line adjustment.

Signed spec sheet + retained reference sample

5First batch

Run, hold, release

The first production batch runs to the locked sheet. Finished goods are held in quarantine until laboratory results pass; only then does the batch release for shipment. This hold-and-release gate is the difference between a specification that exists and a specification that operates.

Batch COA + batch ID

6Repeat

Report every batch against the locked numbers

Each subsequent lot carries the same batch ID structure — tied to raw material intake, production line, date and operator — and the same certificate format. This is what makes a third container arguable rather than emotional: either the numbers are inside the band or they are not.

Per-lot COA + traceable batch record

Two notes from our side of the table.

Stage 4 is where deals are won or lost quietly. Buyers often treat the signed spec as paperwork to finish after the price is agreed. It is the opposite: the signed sheet is the only artefact that survives staff changes on both sides. A specification that lives in an email thread lives until the person who wrote it leaves.

Stage 2 is where most time is saved or wasted. A brief that arrives as a reference bag and "make it like this" typically costs an extra sample round, because the reference bag encodes decisions nobody documented — granule band, scent intensity, bag format. Sending the nine lines with your brief, even with gaps marked open, shortens the path to a locked recipe substantially.

05VerificationProving Each Shipment Still Matches

Verification is a paperwork exercise, not a factory visit. Six checks, all of which can be completed before the container is released.

The COA is per lot, not per product. A certificate that describes the product in general terms proves nothing about the container on the quay. Ask for the certificate for that specific batch ID.
Every line on the COA maps to a line on your signed spec. If the certificate reports seven dimensions and your sheet has nine, the missing two are unprotected. This is the most common gap we see in incoming paperwork.
Values fall inside the tolerance band, not just below a ceiling. "Dust 0.05%, target ≤ 0.1%" passes. "Absorption 320%, target ≥ 400%" does not — even though both look like clean numbers on a page.
The batch ID is traceable to intake, line and date. Forward and backward traceability is what allows a problem in one lot to be isolated instead of triggering a full recall conversation with your retailer.
Hold-and-release is documented. If a batch fails, it should never have shipped. Confirm in writing that release requires laboratory pass and QC authorisation, and that failed batches do not ship under commercial pressure.
The loading plan matches the packing list. Tonnes loaded against tonnes planned, for your bag and pallet mix. This is where a bulk density drift turns into a real cost, and it is checkable from documents alone.

If you want to see what a certificate set looks like before committing, our testing reports centre shows the format, and the nine in-house tests that run on every batch are documented separately from the three-stage incoming, in-process and outgoing control system. For the import-side paperwork — documents, customs classification and the first-container checklist — see the complete import guide.

06Honest limitsWhere Crushed Bentonite Stops

A specification guide that only lists advantages is a sales document. Here is where this material is the wrong choice, stated plainly.

If this is your requirement	Crushed bentonite is…	Better route
Flushable or compostable claim	Not possible — clay does not dissolve	Plant-based: tofu or cassava
Markets restricting clay litter	Not viable where clay is regulated out	Plant-based, positioned on material rather than price
Selectable pellet diameters (1.5 / 2.0 / 3.0 mm)	Not possible — crushed granules have no fixed diameter by design	Extruded plant-based litter, where diameter is set by the die
Premium eco-positioning above market price	Weak fit — the material story is mined, not plant	Plant-based with a substantiated environmental narrative
Lowest unit cost at volume, dust not a concern	Workable, but ball grade may land cheaper	Ball bentonite, specified with a bounded density window

The pattern is that crushed bentonite's natural territory is dust-sensitive, clumping-first positioning at accessible cost — markets where the buyer's first objection is household dust and the second is scooping performance, and where a mined material is acceptable. If your market position depends on the material being plant-based, no amount of specification work on bentonite will close that gap.

For a full material comparison across all six cat litter types see compare products; for the plant-based side specifically see the plant-based comparison guide.

Note · Data scope

What these baseline numbers are, and are not. Every figure in this article comes from Gormeet's published product specifications for GOR-NB-112A and GOR-NB-101A, and from our laboratory's stated test protocols. They are production baselines, not guarantees for every future batch — which is precisely why the per-batch certificate exists. No customer volumes, savings or commercial outcomes are cited here, because those would have to come from a specific programme rather than a general guide.

07FAQFrequently Asked Questions

What is crushed bentonite cat litter?

Crushed bentonite is natural sodium bentonite that has been mined, dried and crushed into irregular granules rather than rolled into spherical beads. Because it is not rounded, the granules have sharper edges and a wider size spread. That usually produces lower dust and higher absorption than ball bentonite, at a slightly different cost and handling profile.

What is the difference between ball and crushed bentonite?

Both are natural sodium bentonite. Ball bentonite is rolled into spherical beads and sieved into tight size ranges; crushed bentonite is crushed into irregular granules. At Gormeet, the GOR-NB-101A crushed grade is specified at 1–3.5 mm (over 95% passing), 3%–4% moisture, dust at or below 0.1%, absorption at or above 400% and bulk density 0.75–1.0 g/cm³. The GOR-NB-112A ball grade is specified at 1–3 mm, moisture at or below 10%, dust at or below 0.5%, absorption at or above 300% and bulk density 0.85–1.0 g/cm³.

Can crushed bentonite be customised for a private label brand?

Yes. The variables that can be specified include granule size range, dust ceiling, absorption target, bulk density, moisture, scent or unscented, optional additives such as activated carbon or baking soda, colour, and packaging format. Range and scent selection are normally confirmed at quote stage, and additive or formulation changes are developed on samples before the first production batch.

What is the minimum order for a crushed bentonite OEM order?

At Gormeet the standard bentonite MOQ is 10 tons, which is roughly one 20GP container. Brand printing carries the same 10-ton threshold. A trial run below that level is a separate discussion and is quoted case by case rather than as a standard option.

How do I know each shipment matches the sample I approved?

Three things make it verifiable: a written specification with numeric ranges rather than adjectives, a retained reference sample from the approved batch, and a Certificate of Analysis issued per production lot with the batch ID tied to raw material intake, line and date. Ask for the COA before the container is released, and check that the numbers fall inside the ranges on the spec sheet.

Is crushed bentonite cat litter flushable?

No. Bentonite is clay and does not dissolve in water, so it should never be marketed as flushable. If your brand position depends on flushability, a plant-based litter such as tofu or cassava is the correct material rather than a bentonite grade.

Why does the same specification cost different amounts from different suppliers?

Usually because the specification is not actually the same. An open spec that says low dust or fast clumping can legitimately be met by a wide range of production. Two quotes only become comparable when every performance line has a number, a test method and a tolerance, and when loading efficiency is quoted for your specific bag and pallet mix.

Next step — two routes

Bring your nine lines, or start from ours

Route 1 — Ready to specify

Send your target specification for a crushed bentonite quote

Send your lines, target market and packaging. We return a quote with the loading plan for your bag mix quoted separately, and the baseline values for the grade that fits — so you can compare against your current supplier on equal terms.

Get a transparent quote →

Route 2 — Still choosing the grade

Test crushed and ball side by side

Ask for samples of both bentonite grades and evaluate them on the lines that matter for your market — dust, scooping behaviour, odour over several days. Sample terms and shipping are confirmed by email before dispatch.

Request samples of both →

Sources & scope Specification values (GOR-NB-112A, GOR-NB-101A) and test protocols: Gormeet product specifications and laboratory documentation. Process model: Gormeet OEM custom formulation workflow. No customer data, savings figures or commercial outcomes are cited in this article. Bulk density variation by ore seam is a characteristic of mined bentonite and is handled by per-batch testing rather than by a fixed product claim.