Brullen i91 Soft Serve Machine Air Pump Non-Pasteurise I91_NP-AMP

The Brullen i91 is a single-flavour countertop soft serve machine with a 12 litre mix tank, rated at 210 to 425 serves per hour, and at 324 mm wide it is the narrowest machine Brullen makes. This is the air-pump build at 40% to 80% overrun — the combination of the smallest footprint in the range with the highest yield per litre of mix.

Why operators choose the I91_NP-AMP

• The narrowest machine in the range, on the high-yield build — 324 mm wide with 40-80% overrun. If bench space is your constraint but yield still has to work commercially, this specific combination is the reason to look at this SKU rather than any other in the range
• Air pump: up to 80% overrun — roughly 1.8 litres of finished product per litre of mix at the top of the range
• A 15 A dedicated circuit — dedicated matters - a continuously cycling compressor on a shared circuit is how a breaker trips mid-service
• Air pump: 40% to 80% overrun — the pump forces air into the mix, so you get a lighter, classic soft-serve texture AND materially more product per litre. At 80% overrun a litre of mix yields roughly 1.8 litres of finished product, which is where the machine pays for itself
• Soft-touch operator menu — the controls a staff member actually uses, on a sealed panel that survives a sticky bench
• POM plastic scraper blades — the blades scrape the frozen layer off the cylinder wall. Plastic rather than steel means they wear instead of the cylinder
• R404a refrigerant, air-cooled condenser — no plumbing for the condenser - but it does need airflow around it

Specifications

Venue suitability

This suits cafes and takeaway counters that are short on bench width but need soft serve to earn its space. At 324 mm wide with air-pump yield it is the most space-efficient commercial option in the Brullen range.

See the full ice cream frozen yoghurt machines range or browse every Brullen model we carry.

Installation & delivery

A 15 A dedicated circuit is required. Dimensions are recorded width x depth x height: 324 mm wide, 783 mm deep, 880 mm tall, weighing 112.5 kg (122.5 kg crated). It is narrower but deeper and taller than the i91 Pro, so measure the depth as well as the width. The air-cooled condenser needs clear airflow around it.

Warranty terms are per product — see our warranty information page.

Frequently asked questions

Q: What is overrun, and why does it matter more than anything else here?

Overrun is the percentage of air whipped into the mix. It sets both the texture and your yield. A gravity-feed machine runs 15-45% overrun and gives a denser, gelato-like product; an air-pump machine runs 40-80% and gives classic light soft serve. The commercial consequence is the yield: at 80% overrun one litre of mix becomes roughly 1.8 litres of finished product, where at 20% it becomes 1.2. If you are comparing a gravity-feed and an air-pump version of the same machine, that is the difference you are actually choosing between.

Q: How does it differ from the gravity-feed i91?

Overrun and weight only. This build runs 40-80% overrun against 15-45%, and weighs 112.5 kg against 105 kg. Tank, footprint, output and electrical requirement are identical. The practical difference is texture and yield: lighter product and close to 1.8 litres per litre of mix here, denser product and less yield on gravity feed.

Q: How does it compare to the i91 Pro?

The i91 is narrower (324 mm against 400 mm) and does fewer serves (210-425 an hour against 250-500), but it is deeper and taller. If width is your binding constraint, this is the machine; if throughput is, the Pro is.

Q: What electrical supply does it need?

A 15 amp dedicated circuit. Dedicated is the important part - the compressor cycles continuously through service.

Q: Does it need plumbing or extra ventilation?

The condenser is air-cooled, so there is no water connection for cooling - but it does need clear airflow around it, and boxing it into a tight cabinet will cost you capacity on a hot day. Our data does not record a ventilation clearance figure for this model, so check the equipment manual or ask us before you build it into joinery.

Q: What is the scraper blade made of and why does that matter?

POM plastic. The blades scrape the frozen layer off the inside of the freezing cylinder thousands of times a day, and the choice of material decides what wears out. Plastic blades wear instead of the cylinder, so the consumable is a cheap replaceable part rather than the machine itself.