SI Greens Cylinder Mower Range – Petrol

This machine can be purchased in the following sizes:

  • SI510G (20”) fitted with 5HP/6HP Engine
  • SI630G (25”) fitted with 5HP/6HP Engine

The machine is fitted with the following:

  • 12 Bladed Cutting Cylinder
  • Low Cut Bottom Blade
  • Front and Rear Roller Scraper
  • Teasing brush
  • Smooth Steel Rear Rollers
  • Double Front Roller adjusters
  • Supplied with Setting Gauge
  • New style Stainless Steel Cutting Cylinder adjusters
SKU: MSI510GRE || MSI630GRE || Categories: , , Tags: , , , , , , , ,

The SI 510G (20″) SI630G (25″) petrol mowers are being used mainly on golf courses and cricket pitches in South Africa. However, in Great Britain, this model is used on Bowling Greens, as electric bowling green mowers are less common. The SI510G and SI630G greens mowers have been successfully exported to Great Britain since 2004.

In South Africa, the SI630G (25″) petrol mowers are now being used on bowling greens as a back-up option in the event of power failures or when their BG mower is undergoing maintenance. Also suitable for country clubs that have Bowling greens, Cricket pitches or Putting greens but can only afford one machine.

Additional information




12 Bladed Cutting Cylinder and Low Cut Bottom Blade (min. height: 2.5mm)


Smooth Drums for a consistently level finish

Teasing Brush



Double Front Roller Adjusters New style Stainless Steel cylinder adjustment Rear Roller adjustment for levelling machine

Optional extras

Grooming reel, Pin-type scarifier reel, Cradle Wiehle roller, Nylon reel, Teasing brush

Product Manual

Download Manual


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SI Greens Cylinder Mower Range – Petrol

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Have any questions or need clarification on something? We might have answered your questions already. Read through these frequently asked questions below, otherwise you are welcome to send us a message.

What is a cylinder mower?

A cylinder mower is a lawnmower that features a cutting cylinder (a reel of blades that form a helical shape around a shaft). The cutting cylinder is in constant contact with a bottom blade/bedknife and when in use, utilises a shearing action to cut the grass between the blades.

Why use a cylinder mower instead of a rotary mower?

A cylinder mower will deliver a far superior finish in comparison to a rotary mower, especially on the lawn that is kept relatively short (i.e. below 15mm in length). 

An additional benefit to utilising a cylinder mower is the fact that it will also promote a healthier lawn over the long-term. 

Is Protea Turf Equipment really South African?

Yes, we take pride in the fact that over 95% of our components are locally sourced and all fabrication takes place within South Africa.

Does Protea Turf offer ride-on mowers?

We do not manufacture ride-on mowers; however, our entire range of mowers is self-propelled. It is possible to fit a trailer seat on a select few of our products, enabling the operator to sit and be towed by the machine during cutting.

Do you offer services on your machines?

Absolutely. We encourage all Protea customers to consider having their machine serviced at least once a year. By doing so, wearable components can be replaced before they cause avoidable damage to the machine. A Bonus - our quotations on repairs and services are 100% obligation-free.

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Are you interested in selling Protea machines? We are always on the lookout for dealers and distributors who are already trading in the turf industry in both the industrial and domestic markets. If this sounds like you, click the button to apply now.

Protea dealers and distributors benefit from unique discount offers and credit facilities. Our complete range of industrial and domestic machines, as well as accessories, are available for resale. Apply to be a Protea dealer here.