Discharge Line Kit · For dealers

One sensor. The whole herd. Any parlour.

A retrofit for every farm on your books: one in-line analyser on the milk discharge line measures fat, protein and lactose of every litre — fitted in up to 3 hours, on any brand.

Get the dealer packFarmer economics
For dealers

A retrofit add-on for every farm already on your books

Not only the parlours you install from new. One unit, half a day of fitter time and a value story the farmer understands on the first visit.

Every parlour you already service

Brand-independent. Rotaries, herringbones, parallel parlours — new or 20 years old.

DeLavalGEABouMatic+ other brands
Rotary milking parlour

One unit per farm, not per stall

A single sensor covers the whole herd. Simple quote, simple install, simple support.

Half a day of fitter time

Cut the bypass to length, clamp the analyser in, mount the comms box, connect power and internet.

A story farmers already understand

“Know what you are paid for.”

No training on cow-health algorithms needed to sell it.

Proven, validated technology

Built on the technology of the ICAR-validated BHL01 analyser. The BHL02 is 3-A Sanitary certified, and the sensor already runs inside BouMatic Gemini robots.

A recurring relationship

Data subscription and yearly service keep you in contact with the farm between equipment purchases.

A path to per-cow measurement

The same technology is installed per cow — on robots and at every milking point. A farm can start on the discharge line and grow with you.

Discharge line · herd level→Per milking point · every cow→Robots · every milking
The farmer's business case

The milk cheque is not litres. It is fat and protein.

Composition is the part of the cheque a farmer can influence, and the only part he never measures himself. HerdLine changes that.

Today the only composition figure the farmer has is the buyer's — one dip sample per collection, days after the milk has left the farm.

Known before the tanker arrives

Composition of the tank is known while the milk is still on the farm — not after the payment report.

Compared with the buyer's figure

Daily on-farm fat and protein sit next to the dairy's result. Differences become visible — and documented.

Every fill, not one dip sample

Continuous measurement across each milking, instead of a single sample that depends on agitation.

Feed with numbers, not guesses

A ration or forage change shows in fat and protein within days. Milk fat depression is caught before the cheque shows it.

Talk-track calculator

What a change in fat and protein is worth to your customer

Set the herd in front of you and the buyer's prices. Uses only the inputs below.

300
9,000 L
Same change for both:
Fat
0.10 %-pt
€4.50 / kg
Protein
0.10 %-pt
€7.00 / kg
Fat · 2,700 kg / year€12,150
Protein · 2,700 kg / year€18,900
Total value per year€31,050€104 per cow

Illustrative only — the default prices are examples; enter the buyer's actual fat and protein prices (1 L ≈ 1 kg of milk). HerdLine readings are management data, not the legal payment figure: the proposition is to know before the buyer does, not to replace the laboratory.

Case studies

Results from the field

What farms do with their own milk data — on the discharge line, per cow, and inside milking robots.

Discharge lineScotland, UK
€14,000 backpayment recovered from the milk buyer

The analyser paid for itself with one phone call.

The farm's own figures caught a wrong result — and got the money back

A Scottish dairy farm compared its daily HerdLine composition with the results it received from its milk buyer.

Challenge

Like every farm, it was paid on fat and protein from the buyer's tank sample — with no measurement of its own between the parlour and the tank.

What happened

In April 2026 the buyer's results suddenly dropped to 3.29 % fat and 3.12 % protein. HerdLine, measuring every litre of the same milk, showed a steady 4.2–4.4 % fat and 3.5 % protein.

Result

With its own documented record, the farm challenged the result. The buyer made a €14,000 backpayment — more than the cost of the analyser.

HerdLine daily composition vs the buyer's tank results, Scottish farm, January–April 2026From late January to early April the buyer's results follow HerdLine closely. On 10 and 13 April the buyer reported 3.76 % and 3.29 % fat and 3.12 % protein, while HerdLine showed 4.2–4.4 % fat and 3.5 % protein.

Fat / protein, %. HerdLine on the discharge line from 28 January 2026; buyer's results as received by the farm.

Discharge lineAlmost 2 years on farm

One sensor, every week, tracking the bulk tank

Herd fat measured on the discharge line, against the bulk-tank reference on the same farm. Seasonal and ration-driven swings are visible week by week — the information a farmer and nutritionist need to act before the payment slip arrives.

Herd fat percentage, July 2024 to February 2026Weekly herd fat measured by HerdLine on the discharge line closely follows the bulk-tank reference, ranging from about 3.8 % in summer to about 4.6 % in autumn and winter.

Fat, % — weekly median of daily values. July 2024 – February 2026.

Show data table
Week ofHerdLine fat %Bulk tank fat %
Parlour with a HerdLine analyser at each milking point
Per cowHerd health

Preventive NEB treatment: +€1.09 per cow per day

The HerdLine app flagged 52 cows in negative energy balance. Half were treated preventively with a monensin bolus, half were not — and energy-corrected milk was compared over 122 days.

52cows flagged in NEB
+3.46 kgECM per treated cow per day
€1.09extra profit / cow / day, after treatment cost
Read the full case study
HerdLine analyser installed in a BouMatic Gemini milking robot
RobotsOEM partner

Inside BouMatic Gemini milking robots

The same sensor is integrated as MilkGenius in BouMatic's milking robots and systems — one analyser per robot, measuring every milking of every cow. Brolis is a strategic technology partner of BouMatic.

  • Integrated as MilkGenius by BouMatic
  • One analyser per robot or milking point
  • Same technology as the Discharge Line Kit
About the per-cow analyser
Ready-to-install kit

Everything for one installation, in one case

The kit arrives in a single foldable transport case. Nothing to source locally, nothing to weld.

BHL02 in-line milk analyser
01 · ANALYSER

BHL02 in-line analyser

Sits directly in the milk flow and measures fat, protein and lactose as milk passes through.

  • Mid-infrared laser spectroscopy
  • 3-A Sanitary certified, CIP-cleaned
High-flow stainless steel bypass adapter
02 · BYPASS

High-flow bypass adapter

A parallel stainless section, cut to length on site, so the full flow is never restricted by the analyser bore.

  • For 2″ / DN50 discharge lines
  • Clamped in — no welding on farm
Assembled wall-mounted comms box with power and network cables
03 · COMMS

Assembled comms box

Wall-mounted enclosure that powers the analyser over PoE and relays data to the cloud.

  • Three connections: analyser, mains, internet
  • Pre-assembled and cabled
Installation

Where it goes and how it is fitted

On the discharge line between the receiver pump and the bulk tank, with a bypass. No change to the milking equipment or the wash routine.

Milk flows from the parlour to the receiver and pump, then along the discharge line through the HerdLine analyser on a bypass, into the bulk tank. A wall-mounted comms box powers the analyser and connects to mains and internet. Parlour Receiver & pump HerdLine analyser + bypass Bulk tank Comms box existing existing full flow never restricted cooling & storage PoE MainsInternet

Cut the bypass to length

The stainless bypass section is fitted parallel to the existing discharge line.

Clamp the analyser in

No welding on farm and no change to the milking equipment.

Mount the comms box

Wall-mounted next to the line. One PoE cable to the analyser.

Connect power & internet

Mains to the box, internet where the farm has it. Done in up to 3 hours.

What the farm needs

  • A 2″ / DN50 milk discharge line
  • Mains power at the wall
  • Internet connection where available
  • The normal CIP wash — nothing else
HerdLine analyser with bypass on the discharge line above the parlour
On the discharge line above the parlour
Analyser on bypass next to the plate cooler
Next to the plate cooler
Analyser on a vertical section of the line
On a vertical line section
Milking parlour
Parlours of every brand
Parallel milking parlour
Rotary, herringbone, parallel
Dealer FAQ

Questions your team will ask

Anything else — send us a message.

Which milking systems does it work with?

It is brand-independent. It retrofits to DeLaval, GEA, BouMatic and other systems — rotaries, herringbones and parallel parlours, new or 20 years old.

Who installs it, and how long does it take?

Your fitter. Cut the bypass to length, clamp the analyser in, mount the comms box and connect power and internet — up to 3 hours. We support your first installation on site.

What does the farm need to provide?

A 2″ / DN50 discharge line, mains power for the comms box, and internet where the farm has it. Nothing changes in the milking equipment or the wash routine.

Is there any maintenance or consumables?

No reagents and no consumables. The analyser is washed with the plant by the normal CIP cycle — no daily maintenance for the farmer. Yearly service keeps you in touch with the farm.

Does it replace the laboratory or the buyer's sample?

No. HerdLine readings are management data, not the legal payment figure. The value is knowing composition before the buyer does — and having a documented record when figures differ.

How does the dealer earn?

On the kit and installation, plus a recurring relationship through the data subscription and yearly service. Pricing and dealer margins are in the dealer pack.

Does it work for goat milk?

Yes — the BHL02 is also calibrated for goat milk (RMSE fat 0.04, protein 0.05, lactose 0.07 %-pt).

Ready to offer it to your customers?

Request the dealer pack — datasheet, installation guide, pricing and margins — or book a meeting at EuroTier 2026, Hall 13, Stand F40.

Request the dealer packBook a EuroTier meeting