AS 73 4T B&S Meadow Mower – 73cm Long Grass Machine

The AS 73 4T B&S is a 73 cm Allmäher designed for tall, grassy growth where speed and a tidy shredded finish matter. Its B&S Series 3 engine and two blade speeds let you switch between fine mulching for regular cuts and higher torque for thicker, once-a-year growth. It’s lighter than a flail mower, easier to handle on moderate slopes and quicker across open meadows.

It suits contractors, councils and estates that prioritise output and a clean result over the “eat anything” approach of a flail. The cross-blade system and closed deck hold the grass in the chamber long enough to shred it well, making it ideal for annual meadow management, orchard strips and open verges where consistent finish matters.

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Working capability and real-world use

The AS 73 4T B&S is built for tall, grassy growth where you want to cover ground quickly without dragging a heavy flail around. Its 73 cm deck and two blade speeds give you flexibility: high blade speed for a cleaner shredded finish in regular meadow work, and the slower, high-torque setting for tougher areas that only get cut once or twice a year. The machine feels settled on moderate slopes thanks to its low weight and studded tyres, and the separate engine and blade shafts help protect the engine if you clip hidden debris.

Where it sits in AS-Motor’s range

This is the top-end Allmäher for output. It’s faster and lighter than the AS 65 models and leaves a better finish than a flail. Compared to the AS 63 slope machines, the AS 73 is the choice for open areas and meadow management rather than steep banking. Buyers often choose it when they want a high-grass mower that balances speed, cut quality and manageable handling.

Who the machine suits

• Contractors maintaining large meadow areas, verges and parkland strips
• Councils needing a rapid walk-behind option for long-grass routes
• Estates and orchards that want a tidy, mulched result rather than brute-force shredding
• Smallholders who cut tall grass but don’t deal with heavy bramble or woody material

It appeals most to users who value output and finish over the raw “anything goes” ability of a flail mower. On open ground it simply covers more area with less fatigue.

Strengths that matter day to day

• High work rate of up to 3,700 m²/h in open, grassy growth
• Two blade speeds that let you adjust to crop conditions without slowing the job
• Cross-blade system leaves a cleaner mulch in tall grass than many rotary rough cutters
• 135 kg weight makes it easier to position than a flail in day-long work
• Good traction from the low-pressure studded tyres on wet or uneven ground
• V-handlebar adjustments help different operators stay comfortable

Operational realities

The AS 73 4T B&S is built for grass, not woody waste. It will handle the odd brashy patch, but repeated hits on thick stems aren’t what it’s designed for. On slopes it performs well, but if your main work is steep banking, the AS 63 series remains the safer, steadier choice. The machine feels best on open, undulating ground where you can maintain a steady pace.

Accessories worth considering

• Twin tyres: add stability and grip on softer or sloping ground
• Electric start: useful for frequent stop-start work
• Operating hour meter: handy for tracking servicing on contractor fleets

How Suffolk Mowers Supports Your Purchase

Suffolk Mowers supplies the AS 73 4T B&S fully set up and ready for work. We check the drive system, blade clutch, cross-blade assembly and all safety functions before handover, so you can take it straight into tall meadow grass with confidence. If your workmix includes slopes or wetter ground, we’ll advise whether twin tyres or other accessories will genuinely help.

We keep service parts, blades and common wear items in stock, and our workshop handles routine servicing, repairs and mid-season checks for contractor fleets and estate teams. If you need guidance on blade speed selection, maintenance routines or setup for specific crop conditions, we’ll walk you through it. The aim is simple: keep your machine cutting cleanly, starting reliably and working hard throughout the season.

Technical Specifications

Frequently Asked Questions About AS 73 4T B&S