Milking Machines for Small Dairy Farms | Delmer Group

Milking Machines for Small Dairy Farms: Choose by Herd Size

Quick answer: For a small dairy, a bucket milking machine is often a practical starting point because it combines a milking unit and a portable milk bucket. As herd size and daily workload grow, compare one or more bucket units with a pipeline or parlour system. The right choice depends on simultaneous milking units, target milking time, operator availability, animal type, milk handling and cleaning—not herd size alone.

Delmer Group supplies dairy farm equipment and helps customers evaluate configurations for cows and buffaloes. Use this guide as a starting point; confirm pump capacity, operating vacuum, pulsation and installation requirements against the selected machine’s technical documentation and a site-specific calculation.

Choose a system by herd size

Herd size	System to evaluate first	What to assess
1–5 cattle	One portable bucket milking unit	Portability, cleaning, power supply and whether hand milking is practical
5–15 cattle	One or two bucket units	Milking duration, operators, milk transfer and wash routine
15–30 cattle	Multiple bucket units versus small pipeline	Labour, bucket handling, milk cooling and cleaning time
30–50 cattle	Compare multiple units with pipeline or small parlour	Throughput, labour, hygiene, installation, service and expansion

These ranges are preliminary planning guidance, not mandatory technical cut-offs. A farm with fewer high-yielding animals may need a different configuration from a farm with more animals and a slower routine.

Bucket milking or pipeline milking?

A bucket system typically has lower installation complexity and can suit smaller herds or farms where portability matters. Trade-offs include handling the bucket, transferring milk, moving equipment and cleaning consistently. A pipeline can reduce manual milk transfer and repeated bucket handling, but requires suitable layout, installation, cleaning arrangements and investment. Compare the total daily workflow rather than purchase price alone.

How to size a vacuum pump

Do not select a pump from herd size alone or from motor power. Pump selection must use effective free-air capacity at the required operating vacuum and account for simultaneous milking units, equipment air consumption, effective reserve, leakage, accessories, cleaning requirements and installation conditions. Confirm that quoted capacity is expressed on a comparable free-air basis.

ISO 5707:2007 Annex A gives an effective-reserve calculation for specified cow and buffalo bucket-system configurations with automatic teatcup shut-off valves: ER = 80 + 25n L/min for 2–10 milking units, where n is the number of units. Without automatic shut-off valves, the standard requires an additional 80 L/min of effective reserve. These values describe reserve—not total pump capacity. Confirm applicability against the exact installation and current applicable standard.

Simultaneous milking units	Effective reserve in the stated ISO configuration
2	130 L/min
4	180 L/min
6	230 L/min
10	330 L/min

Do not treat this reserve table as a pump model selector. Final selection requires the applicable-standard calculation, manufacturer specifications, installation checks and commissioning by a competent professional.

Cows and buffaloes

Confirm that the chosen machine is specified for the intended species. Teat and udder characteristics, liner suitability, pulsation settings, milk yield and manufacturer instructions matter. Do not assume every configuration is automatically suitable for cows, buffaloes, goats or sheep.

Hygiene, operation and maintenance

Follow documented pre-milking teat preparation and post-milking procedures appropriate to the farm and local veterinary guidance.
Clean and sanitise milk-contact surfaces using the manufacturer's instructions and suitable water quality.
Inspect liners, hoses, pulsators, regulators, vacuum gauges and seals at specified intervals.
Plan milk cooling, storage and transfer alongside the milking machine.

What to provide for a Delmer recommendation

Provide number and species of animals; approximate milk yield; milkings per day; desired milking duration; available operators; existing vacuum pump details; power supply; shed layout; milk cooling arrangement; country and service location; and planned herd expansion.

Request a configuration review: Contact Delmer Group through the website contact page and mention “Bucket Milking System Selection”. Our team can review your requirements before confirming a suitable machine and pump configuration.

Technical references

ISO 5707:2007 — Milking machine installations: Construction and performance. Verify the edition and requirements applicable to the installation.
FAO technical guidance on milking installations.
FAO guidance on cattle housing and farm layout.

Frequently asked questions

Which milking machine is suitable for five cows?

A single bucket milking unit is a sensible starting option to evaluate. Confirm target milking time, animal compatibility, cleaning workflow and machine specifications before purchase.

Can one bucket milking machine serve ten cows?

It may serve a ten-cow herd if the daily schedule and operator workload are acceptable. Whether one or two units are better depends on throughput, frequency, yield and labour—not the count alone.

How do I calculate vacuum-pump capacity?

Start with the installation standard and equipment air-consumption data. Calculate effective reserve and add applicable system air demands and allowances. Reserve alone is not total pump capacity.

When should I consider pipeline milking?

Compare pipeline and bucket systems when bucket handling, milk transfer, labour, cleaning or expansion becomes a bottleneck. Include installation cost and service availability.

Can one machine be used for cows and buffaloes?

Only when the manufacturer specifies suitability for both species and the liner, pulsation and operating settings are appropriate.