Pulsators set to your parlour, regulators sized in cfm.

Category 02 of 10Default 60:40 at 60 ppmRegulators by cfmFreight and sales tax extra

Electronic pulsator mounted on a parlour vacuum line

Item 01 · Pulsation

Electronic pulsators

Set to the parlour's ratio and rate. 60:40 at 60 ppm is the default when nobody tells us different.

A pulsator is the part that opens and closes the liner on the teat. It lets air into the pulsation chamber, then pulls it out again, sixty times a minute on most parlours. When the timing drifts or the diaphragm wears, the massage phase gets short, teats go blue and hard at the end, and cows start stepping during milking. The parlour looks the same. The cows don't.

Electronic pulsators hold their timing better than older pneumatic ones because the rate comes from a controller, not a spring and an air bleed. We stock single and twin-outlet bodies, alternating and simultaneous. Before we ship, the desk asks for the ratio, the rate, the controller voltage and the number of outlets. If you have the old unit's plate, a photo of it answers most of that.

Price basisPer unit · quoted on inquiry by outlets and controller

Pulsator specification
Type	Electronic, alternating or simultaneous
Default setting	60:40 ratio · 60 ppm
Outlets	Single or twin pulse tube
Matched by	Ratio · rate · controller voltage · outlets
Also stocked	Diaphragm and filter service parts

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Vacuum regulator with gauge on a parlour vacuum line

Item 02 · Vacuum

Vacuum regulators

Sized by reserve airflow in cfm, not by the pipe it screws into.

The regulator's job is to let in exactly as much air as the system doesn't need, so the vacuum at the claw stays flat when a unit falls off or a cluster gets attached. People order them by pipe thread because that's the thing they can see. The thread only tells us it will fit. What decides whether it works is how much air it can admit, and that has to match the reserve your vacuum pump carries over what the parlour uses.

An undersized regulator can't bleed enough air, so vacuum creeps up when all the units are on and nobody's kicking. Oversized, it hunts. Tell us the vacuum pump's rated airflow, the operating vacuum, and roughly how many units run at once. If your technician has done a reserve test, send the number.

Price basisPer unit · quoted on inquiry by cfm and vacuum level

Regulator specification
Sized by	Reserve airflow, cfm
Set to	Your operating vacuum level
Connection	Stated after sizing, to match your line
Matched by	Pump cfm · operating vacuum · units running
Also stocked	Diaphragms, filters and sensor service parts

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Ratio and rate, explained once

Rate is how many times a minute the liner opens and closes. Ratio is how the cycle splits between milking and resting. At 60 ppm, one cycle is exactly one second, which makes the arithmetic easy.

One pulsation cycle at common settings
Setting	Cycle length	Milk phase	Rest phase	Where you see it
60:40 at 60 ppm	1.000 s	0.600 s	0.400 s	Our default; most parlours
65:35 at 60 ppm	1.000 s	0.650 s	0.350 s	Faster milk-out, less rest on the teat
60:40 at 55 ppm	1.091 s	0.655 s	0.436 s	Some older systems
50:50 at 60 ppm	1.000 s	0.500 s	0.500 s	Some tie-stall and bucket units

The failure mode we see most: a replacement pulsator ships at a factory default that doesn't match the rest of the parlour, and one stall milks differently from its neighbours. Tell us your setting and we set every unit to it.

How the desk sizes it

Send the plate
A photo of the old pulsator or regulator plate, or the vacuum pump's plate for a regulator. Model, voltage, cfm.
Tell us the parlour
Ratio, rate, operating vacuum and the number of units. Our parlour technician reads it over if anything doesn't add up.
Confirm and invoice
Indicative price and lead time back in writing. You confirm, we invoice, freight on its own line.
Set and shipped
Pulsators are set to your ratio and rate before they're boxed. Confirmed by early afternoon, most leave the same day.

Worth knowing first

Sizing a regulator by thread
We won't. Without the airflow figure we'd be guessing, and a wrong regulator is a vacuum problem you'll chase for weeks.
System design or vacuum tests
We supply parts. For a full system analysis, use your milking equipment dealer or an independent tester, then send us the numbers.
Mixed settings in one parlour
If your units run different ratios by accident, we'll point it out rather than match the odd one.

Same stall, other parts: liners and claws, pulse and milk tubing, gaskets and o-rings.

Pulsation and vacuum

Ask about a pulsator or regulator

Give the desk the ratio, the rate and the vacuum figure you run. For a regulator, the pump's cfm matters more than anything else you can send.

Or ring (608) 355-8791